Files @ r9950:ca6054744c76
Branch filter:

Location: cpp/openttd-patchpack/source/src/newgrf.cpp

belugas
(svn r14105) -Fix: Some typos that are more grammatical errors, as it seems.
Provided by ln
I've added a little fix on currency.cpp too, why not :)
   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
1756
1757
1758
1759
1760
1761
1762
1763
1764
1765
1766
1767
1768
1769
1770
1771
1772
1773
1774
1775
1776
1777
1778
1779
1780
1781
1782
1783
1784
1785
1786
1787
1788
1789
1790
1791
1792
1793
1794
1795
1796
1797
1798
1799
1800
1801
1802
1803
1804
1805
1806
1807
1808
1809
1810
1811
1812
1813
1814
1815
1816
1817
1818
1819
1820
1821
1822
1823
1824
1825
1826
1827
1828
1829
1830
1831
1832
1833
1834
1835
1836
1837
1838
1839
1840
1841
1842
1843
1844
1845
1846
1847
1848
1849
1850
1851
1852
1853
1854
1855
1856
1857
1858
1859
1860
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870
1871
1872
1873
1874
1875
1876
1877
1878
1879
1880
1881
1882
1883
1884
1885
1886
1887
1888
1889
1890
1891
1892
1893
1894
1895
1896
1897
1898
1899
1900
1901
1902
1903
1904
1905
1906
1907
1908
1909
1910
1911
1912
1913
1914
1915
1916
1917
1918
1919
1920
1921
1922
1923
1924
1925
1926
1927
1928
1929
1930
1931
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941
1942
1943
1944
1945
1946
1947
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960
1961
1962
1963
1964
1965
1966
1967
1968
1969
1970
1971
1972
1973
1974
1975
1976
1977
1978
1979
1980
1981
1982
1983
1984
1985
1986
1987
1988
1989
1990
1991
1992
1993
1994
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027
2028
2029
2030
2031
2032
2033
2034
2035
2036
2037
2038
2039
2040
2041
2042
2043
2044
2045
2046
2047
2048
2049
2050
2051
2052
2053
2054
2055
2056
2057
2058
2059
2060
2061
2062
2063
2064
2065
2066
2067
2068
2069
2070
2071
2072
2073
2074
2075
2076
2077
2078
2079
2080
2081
2082
2083
2084
2085
2086
2087
2088
2089
2090
2091
2092
2093
2094
2095
2096
2097
2098
2099
2100
2101
2102
2103
2104
2105
2106
2107
2108
2109
2110
2111
2112
2113
2114
2115
2116
2117
2118
2119
2120
2121
2122
2123
2124
2125
2126
2127
2128
2129
2130
2131
2132
2133
2134
2135
2136
2137
2138
2139
2140
2141
2142
2143
2144
2145
2146
2147
2148
2149
2150
2151
2152
2153
2154
2155
2156
2157
2158
2159
2160
2161
2162
2163
2164
2165
2166
2167
2168
2169
2170
2171
2172
2173
2174
2175
2176
2177
2178
2179
2180
2181
2182
2183
2184
2185
2186
2187
2188
2189
2190
2191
2192
2193
2194
2195
2196
2197
2198
2199
2200
2201
2202
2203
2204
2205
2206
2207
2208
2209
2210
2211
2212
2213
2214
2215
2216
2217
2218
2219
2220
2221
2222
2223
2224
2225
2226
2227
2228
2229
2230
2231
2232
2233
2234
2235
2236
2237
2238
2239
2240
2241
2242
2243
2244
2245
2246
2247
2248
2249
2250
2251
2252
2253
2254
2255
2256
2257
2258
2259
2260
2261
2262
2263
2264
2265
2266
2267
2268
2269
2270
2271
2272
2273
2274
2275
2276
2277
2278
2279
2280
2281
2282
2283
2284
2285
2286
2287
2288
2289
2290
2291
2292
2293
2294
2295
2296
2297
2298
2299
2300
2301
2302
2303
2304
2305
2306
2307
2308
2309
2310
2311
2312
2313
2314
2315
2316
2317
2318
2319
2320
2321
2322
2323
2324
2325
2326
2327
2328
2329
2330
2331
2332
2333
2334
2335
2336
2337
2338
2339
2340
2341
2342
2343
2344
2345
2346
2347
2348
2349
2350
2351
2352
2353
2354
2355
2356
2357
2358
2359
2360
2361
2362
2363
2364
2365
2366
2367
2368
2369
2370
2371
2372
2373
2374
2375
2376
2377
2378
2379
2380
2381
2382
2383
2384
2385
2386
2387
2388
2389
2390
2391
2392
2393
2394
2395
2396
2397
2398
2399
2400
2401
2402
2403
2404
2405
2406
2407
2408
2409
2410
2411
2412
2413
2414
2415
2416
2417
2418
2419
2420
2421
2422
2423
2424
2425
2426
2427
2428
2429
2430
2431
2432
2433
2434
2435
2436
2437
2438
2439
2440
2441
2442
2443
2444
2445
2446
2447
2448
2449
2450
2451
2452
2453
2454
2455
2456
2457
2458
2459
2460
2461
2462
2463
2464
2465
2466
2467
2468
2469
2470
2471
2472
2473
2474
2475
2476
2477
2478
2479
2480
2481
2482
2483
2484
2485
2486
2487
2488
2489
2490
2491
2492
2493
2494
2495
2496
2497
2498
2499
2500
2501
2502
2503
2504
2505
2506
2507
2508
2509
2510
2511
2512
2513
2514
2515
2516
2517
2518
2519
2520
2521
2522
2523
2524
2525
2526
2527
2528
2529
2530
2531
2532
2533
2534
2535
2536
2537
2538
2539
2540
2541
2542
2543
2544
2545
2546
2547
2548
2549
2550
2551
2552
2553
2554
2555
2556
2557
2558
2559
2560
2561
2562
2563
2564
2565
2566
2567
2568
2569
2570
2571
2572
2573
2574
2575
2576
2577
2578
2579
2580
2581
2582
2583
2584
2585
2586
2587
2588
2589
2590
2591
2592
2593
2594
2595
2596
2597
2598
2599
2600
2601
2602
2603
2604
2605
2606
2607
2608
2609
2610
2611
2612
2613
2614
2615
2616
2617
2618
2619
2620
2621
2622
2623
2624
2625
2626
2627
2628
2629
2630
2631
2632
2633
2634
2635
2636
2637
2638
2639
2640
2641
2642
2643
2644
2645
2646
2647
2648
2649
2650
2651
2652
2653
2654
2655
2656
2657
2658
2659
2660
2661
2662
2663
2664
2665
2666
2667
2668
2669
2670
2671
2672
2673
2674
2675
2676
2677
2678
2679
2680
2681
2682
2683
2684
2685
2686
2687
2688
2689
2690
2691
2692
2693
2694
2695
2696
2697
2698
2699
2700
2701
2702
2703
2704
2705
2706
2707
2708
2709
2710
2711
2712
2713
2714
2715
2716
2717
2718
2719
2720
2721
2722
2723
2724
2725
2726
2727
2728
2729
2730
2731
2732
2733
2734
2735
2736
2737
2738
2739
2740
2741
2742
2743
2744
2745
2746
2747
2748
2749
2750
2751
2752
2753
2754
2755
2756
2757
2758
2759
2760
2761
2762
2763
2764
2765
2766
2767
2768
2769
2770
2771
2772
2773
2774
2775
2776
2777
2778
2779
2780
2781
2782
2783
2784
2785
2786
2787
2788
2789
2790
2791
2792
2793
2794
2795
2796
2797
2798
2799
2800
2801
2802
2803
2804
2805
2806
2807
2808
2809
2810
2811
2812
2813
2814
2815
2816
2817
2818
2819
2820
2821
2822
2823
2824
2825
2826
2827
2828
2829
2830
2831
2832
2833
2834
2835
2836
2837
2838
2839
2840
2841
2842
2843
2844
2845
2846
2847
2848
2849
2850
2851
2852
2853
2854
2855
2856
2857
2858
2859
2860
2861
2862
2863
2864
2865
2866
2867
2868
2869
2870
2871
2872
2873
2874
2875
2876
2877
2878
2879
2880
2881
2882
2883
2884
2885
2886
2887
2888
2889
2890
2891
2892
2893
2894
2895
2896
2897
2898
2899
2900
2901
2902
2903
2904
2905
2906
2907
2908
2909
2910
2911
2912
2913
2914
2915
2916
2917
2918
2919
2920
2921
2922
2923
2924
2925
2926
2927
2928
2929
2930
2931
2932
2933
2934
2935
2936
2937
2938
2939
2940
2941
2942
2943
2944
2945
2946
2947
2948
2949
2950
2951
2952
2953
2954
2955
2956
2957
2958
2959
2960
2961
2962
2963
2964
2965
2966
2967
2968
2969
2970
2971
2972
2973
2974
2975
2976
2977
2978
2979
2980
2981
2982
2983
2984
2985
2986
2987
2988
2989
2990
2991
2992
2993
2994
2995
2996
2997
2998
2999
3000
3001
3002
3003
3004
3005
3006
3007
3008
3009
3010
3011
3012
3013
3014
3015
3016
3017
3018
3019
3020
3021
3022
3023
3024
3025
3026
3027
3028
3029
3030
3031
3032
3033
3034
3035
3036
3037
3038
3039
3040
3041
3042
3043
3044
3045
3046
3047
3048
3049
3050
3051
3052
3053
3054
3055
3056
3057
3058
3059
3060
3061
3062
3063
3064
3065
3066
3067
3068
3069
3070
3071
3072
3073
3074
3075
3076
3077
3078
3079
3080
3081
3082
3083
3084
3085
3086
3087
3088
3089
3090
3091
3092
3093
3094
3095
3096
3097
3098
3099
3100
3101
3102
3103
3104
3105
3106
3107
3108
3109
3110
3111
3112
3113
3114
3115
3116
3117
3118
3119
3120
3121
3122
3123
3124
3125
3126
3127
3128
3129
3130
3131
3132
3133
3134
3135
3136
3137
3138
3139
3140
3141
3142
3143
3144
3145
3146
3147
3148
3149
3150
3151
3152
3153
3154
3155
3156
3157
3158
3159
3160
3161
3162
3163
3164
3165
3166
3167
3168
3169
3170
3171
3172
3173
3174
3175
3176
3177
3178
3179
3180
3181
3182
3183
3184
3185
3186
3187
3188
3189
3190
3191
3192
3193
3194
3195
3196
3197
3198
3199
3200
3201
3202
3203
3204
3205
3206
3207
3208
3209
3210
3211
3212
3213
3214
3215
3216
3217
3218
3219
3220
3221
3222
3223
3224
3225
3226
3227
3228
3229
3230
3231
3232
3233
3234
3235
3236
3237
3238
3239
3240
3241
3242
3243
3244
3245
3246
3247
3248
3249
3250
3251
3252
3253
3254
3255
3256
3257
3258
3259
3260
3261
3262
3263
3264
3265
3266
3267
3268
3269
3270
3271
3272
3273
3274
3275
3276
3277
3278
3279
3280
3281
3282
3283
3284
3285
3286
3287
3288
3289
3290
3291
3292
3293
3294
3295
3296
3297
3298
3299
3300
3301
3302
3303
3304
3305
3306
3307
3308
3309
3310
3311
3312
3313
3314
3315
3316
3317
3318
3319
3320
3321
3322
3323
3324
3325
3326
3327
3328
3329
3330
3331
3332
3333
3334
3335
3336
3337
3338
3339
3340
3341
3342
3343
3344
3345
3346
3347
3348
3349
3350
3351
3352
3353
3354
3355
3356
3357
3358
3359
3360
3361
3362
3363
3364
3365
3366
3367
3368
3369
3370
3371
3372
3373
3374
3375
3376
3377
3378
3379
3380
3381
3382
3383
3384
3385
3386
3387
3388
3389
3390
3391
3392
3393
3394
3395
3396
3397
3398
3399
3400
3401
3402
3403
3404
3405
3406
3407
3408
3409
3410
3411
3412
3413
3414
3415
3416
3417
3418
3419
3420
3421
3422
3423
3424
3425
3426
3427
3428
3429
3430
3431
3432
3433
3434
3435
3436
3437
3438
3439
3440
3441
3442
3443
3444
3445
3446
3447
3448
3449
3450
3451
3452
3453
3454
3455
3456
3457
3458
3459
3460
3461
3462
3463
3464
3465
3466
3467
3468
3469
3470
3471
3472
3473
3474
3475
3476
3477
3478
3479
3480
3481
3482
3483
3484
3485
3486
3487
3488
3489
3490
3491
3492
3493
3494
3495
3496
3497
3498
3499
3500
3501
3502
3503
3504
3505
3506
3507
3508
3509
3510
3511
3512
3513
3514
3515
3516
3517
3518
3519
3520
3521
3522
3523
3524
3525
3526
3527
3528
3529
3530
3531
3532
3533
3534
3535
3536
3537
3538
3539
3540
3541
3542
3543
3544
3545
3546
3547
3548
3549
3550
3551
3552
3553
3554
3555
3556
3557
3558
3559
3560
3561
3562
3563
3564
3565
3566
3567
3568
3569
3570
3571
3572
3573
3574
3575
3576
3577
3578
3579
3580
3581
3582
3583
3584
3585
3586
3587
3588
3589
3590
3591
3592
3593
3594
3595
3596
3597
3598
3599
3600
3601
3602
3603
3604
3605
3606
3607
3608
3609
3610
3611
3612
3613
3614
3615
3616
3617
3618
3619
3620
3621
3622
3623
3624
3625
3626
3627
3628
3629
3630
3631
3632
3633
3634
3635
3636
3637
3638
3639
3640
3641
3642
3643
3644
3645
3646
3647
3648
3649
3650
3651
3652
3653
3654
3655
3656
3657
3658
3659
3660
3661
3662
3663
3664
3665
3666
3667
3668
3669
3670
3671
3672
3673
3674
3675
3676
3677
3678
3679
3680
3681
3682
3683
3684
3685
3686
3687
3688
3689
3690
3691
3692
3693
3694
3695
3696
3697
3698
3699
3700
3701
3702
3703
3704
3705
3706
3707
3708
3709
3710
3711
3712
3713
3714
3715
3716
3717
3718
3719
3720
3721
3722
3723
3724
3725
3726
3727
3728
3729
3730
3731
3732
3733
3734
3735
3736
3737
3738
3739
3740
3741
3742
3743
3744
3745
3746
3747
3748
3749
3750
3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799
3800
3801
3802
3803
3804
3805
3806
3807
3808
3809
3810
3811
3812
3813
3814
3815
3816
3817
3818
3819
3820
3821
3822
3823
3824
3825
3826
3827
3828
3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
3880
3881
3882
3883
3884
3885
3886
3887
3888
3889
3890
3891
3892
3893
3894
3895
3896
3897
3898
3899
3900
3901
3902
3903
3904
3905
3906
3907
3908
3909
3910
3911
3912
3913
3914
3915
3916
3917
3918
3919
3920
3921
3922
3923
3924
3925
3926
3927
3928
3929
3930
3931
3932
3933
3934
3935
3936
3937
3938
3939
3940
3941
3942
3943
3944
3945
3946
3947
3948
3949
3950
3951
3952
3953
3954
3955
3956
3957
3958
3959
3960
3961
3962
3963
3964
3965
3966
3967
3968
3969
3970
3971
3972
3973
3974
3975
3976
3977
3978
3979
3980
3981
3982
3983
3984
3985
3986
3987
3988
3989
3990
3991
3992
3993
3994
3995
3996
3997
3998
3999
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4023
4024
4025
4026
4027
4028
4029
4030
4031
4032
4033
4034
4035
4036
4037
4038
4039
4040
4041
4042
4043
4044
4045
4046
4047
4048
4049
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4068
4069
4070
4071
4072
4073
4074
4075
4076
4077
4078
4079
4080
4081
4082
4083
4084
4085
4086
4087
4088
4089
4090
4091
4092
4093
4094
4095
4096
4097
4098
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4112
4113
4114
4115
4116
4117
4118
4119
4120
4121
4122
4123
4124
4125
4126
4127
4128
4129
4130
4131
4132
4133
4134
4135
4136
4137
4138
4139
4140
4141
4142
4143
4144
4145
4146
4147
4148
4149
4150
4151
4152
4153
4154
4155
4156
4157
4158
4159
4160
4161
4162
4163
4164
4165
4166
4167
4168
4169
4170
4171
4172
4173
4174
4175
4176
4177
4178
4179
4180
4181
4182
4183
4184
4185
4186
4187
4188
4189
4190
4191
4192
4193
4194
4195
4196
4197
4198
4199
4200
4201
4202
4203
4204
4205
4206
4207
4208
4209
4210
4211
4212
4213
4214
4215
4216
4217
4218
4219
4220
4221
4222
4223
4224
4225
4226
4227
4228
4229
4230
4231
4232
4233
4234
4235
4236
4237
4238
4239
4240
4241
4242
4243
4244
4245
4246
4247
4248
4249
4250
4251
4252
4253
4254
4255
4256
4257
4258
4259
4260
4261
4262
4263
4264
4265
4266
4267
4268
4269
4270
4271
4272
4273
4274
4275
4276
4277
4278
4279
4280
4281
4282
4283
4284
4285
4286
4287
4288
4289
4290
4291
4292
4293
4294
4295
4296
4297
4298
4299
4300
4301
4302
4303
4304
4305
4306
4307
4308
4309
4310
4311
4312
4313
4314
4315
4316
4317
4318
4319
4320
4321
4322
4323
4324
4325
4326
4327
4328
4329
4330
4331
4332
4333
4334
4335
4336
4337
4338
4339
4340
4341
4342
4343
4344
4345
4346
4347
4348
4349
4350
4351
4352
4353
4354
4355
4356
4357
4358
4359
4360
4361
4362
4363
4364
4365
4366
4367
4368
4369
4370
4371
4372
4373
4374
4375
4376
4377
4378
4379
4380
4381
4382
4383
4384
4385
4386
4387
4388
4389
4390
4391
4392
4393
4394
4395
4396
4397
4398
4399
4400
4401
4402
4403
4404
4405
4406
4407
4408
4409
4410
4411
4412
4413
4414
4415
4416
4417
4418
4419
4420
4421
4422
4423
4424
4425
4426
4427
4428
4429
4430
4431
4432
4433
4434
4435
4436
4437
4438
4439
4440
4441
4442
4443
4444
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
4462
4463
4464
4465
4466
4467
4468
4469
4470
4471
4472
4473
4474
4475
4476
4477
4478
4479
4480
4481
4482
4483
4484
4485
4486
4487
4488
4489
4490
4491
4492
4493
4494
4495
4496
4497
4498
4499
4500
4501
4502
4503
4504
4505
4506
4507
4508
4509
4510
4511
4512
4513
4514
4515
4516
4517
4518
4519
4520
4521
4522
4523
4524
4525
4526
4527
4528
4529
4530
4531
4532
4533
4534
4535
4536
4537
4538
4539
4540
4541
4542
4543
4544
4545
4546
4547
4548
4549
4550
4551
4552
4553
4554
4555
4556
4557
4558
4559
4560
4561
4562
4563
4564
4565
4566
4567
4568
4569
4570
4571
4572
4573
4574
4575
4576
4577
4578
4579
4580
4581
4582
4583
4584
4585
4586
4587
4588
4589
4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610
4611
4612
4613
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649
4650
4651
4652
4653
4654
4655
4656
4657
4658
4659
4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683
4684
4685
4686
4687
4688
4689
4690
4691
4692
4693
4694
4695
4696
4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
4718
4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
4785
4786
4787
4788
4789
4790
4791
4792
4793
4794
4795
4796
4797
4798
4799
4800
4801
4802
4803
4804
4805
4806
4807
4808
4809
4810
4811
4812
4813
4814
4815
4816
4817
4818
4819
4820
4821
4822
4823
4824
4825
4826
4827
4828
4829
4830
4831
4832
4833
4834
4835
4836
4837
4838
4839
4840
4841
4842
4843
4844
4845
4846
4847
4848
4849
4850
4851
4852
4853
4854
4855
4856
4857
4858
4859
4860
4861
4862
4863
4864
4865
4866
4867
4868
4869
4870
4871
4872
4873
4874
4875
4876
4877
4878
4879
4880
4881
4882
4883
4884
4885
4886
4887
4888
4889
4890
4891
4892
4893
4894
4895
4896
4897
4898
4899
4900
4901
4902
4903
4904
4905
4906
4907
4908
4909
4910
4911
4912
4913
4914
4915
4916
4917
4918
4919
4920
4921
4922
4923
4924
4925
4926
4927
4928
4929
4930
4931
4932
4933
4934
4935
4936
4937
4938
4939
4940
4941
4942
4943
4944
4945
4946
4947
4948
4949
4950
4951
4952
4953
4954
4955
4956
4957
4958
4959
4960
4961
4962
4963
4964
4965
4966
4967
4968
4969
4970
4971
4972
4973
4974
4975
4976
4977
4978
4979
4980
4981
4982
4983
4984
4985
4986
4987
4988
4989
4990
4991
4992
4993
4994
4995
4996
4997
4998
4999
5000
5001
5002
5003
5004
5005
5006
5007
5008
5009
5010
5011
5012
5013
5014
5015
5016
5017
5018
5019
5020
5021
5022
5023
5024
5025
5026
5027
5028
5029
5030
5031
5032
5033
5034
5035
5036
5037
5038
5039
5040
5041
5042
5043
5044
5045
5046
5047
5048
5049
5050
5051
5052
5053
5054
5055
5056
5057
5058
5059
5060
5061
5062
5063
5064
5065
5066
5067
5068
5069
5070
5071
5072
5073
5074
5075
5076
5077
5078
5079
5080
5081
5082
5083
5084
5085
5086
5087
5088
5089
5090
5091
5092
5093
5094
5095
5096
5097
5098
5099
5100
5101
5102
5103
5104
5105
5106
5107
5108
5109
5110
5111
5112
5113
5114
5115
5116
5117
5118
5119
5120
5121
5122
5123
5124
5125
5126
5127
5128
5129
5130
5131
5132
5133
5134
5135
5136
5137
5138
5139
5140
5141
5142
5143
5144
5145
5146
5147
5148
5149
5150
5151
5152
5153
5154
5155
5156
5157
5158
5159
5160
5161
5162
5163
5164
5165
5166
5167
5168
5169
5170
5171
5172
5173
5174
5175
5176
5177
5178
5179
5180
5181
5182
5183
5184
5185
5186
5187
5188
5189
5190
5191
5192
5193
5194
5195
5196
5197
5198
5199
5200
5201
5202
5203
5204
5205
5206
5207
5208
5209
5210
5211
5212
5213
5214
5215
5216
5217
5218
5219
5220
5221
5222
5223
5224
5225
5226
5227
5228
5229
5230
5231
5232
5233
5234
5235
5236
5237
5238
5239
5240
5241
5242
5243
5244
5245
5246
5247
5248
5249
5250
5251
5252
5253
5254
5255
5256
5257
5258
5259
5260
5261
5262
5263
5264
5265
5266
5267
5268
5269
5270
5271
5272
5273
5274
5275
5276
5277
5278
5279
5280
5281
5282
5283
5284
5285
5286
5287
5288
5289
5290
5291
5292
5293
5294
5295
5296
5297
5298
5299
5300
5301
5302
5303
5304
5305
5306
5307
5308
5309
5310
5311
5312
5313
5314
5315
5316
5317
5318
5319
5320
5321
5322
5323
5324
5325
5326
5327
5328
5329
5330
5331
5332
5333
5334
5335
5336
5337
5338
5339
5340
5341
5342
5343
5344
5345
5346
5347
5348
5349
5350
5351
5352
5353
5354
5355
5356
5357
5358
5359
5360
5361
5362
5363
5364
5365
5366
5367
5368
5369
5370
5371
5372
5373
5374
5375
5376
5377
5378
5379
5380
5381
5382
5383
5384
5385
5386
5387
5388
5389
5390
5391
5392
5393
5394
5395
5396
5397
5398
5399
5400
5401
5402
5403
5404
5405
5406
5407
5408
5409
5410
5411
5412
5413
5414
5415
5416
5417
5418
5419
5420
5421
5422
5423
5424
5425
5426
5427
5428
5429
5430
5431
5432
5433
5434
5435
5436
5437
5438
5439
5440
5441
5442
5443
5444
5445
5446
5447
5448
5449
5450
5451
5452
5453
5454
5455
5456
5457
5458
5459
5460
5461
5462
5463
5464
5465
5466
5467
5468
5469
5470
5471
5472
5473
5474
5475
5476
5477
5478
5479
5480
5481
5482
5483
5484
5485
5486
5487
5488
5489
5490
5491
5492
5493
5494
5495
5496
5497
5498
5499
5500
5501
5502
5503
5504
5505
5506
5507
5508
5509
5510
5511
5512
5513
5514
5515
5516
5517
5518
5519
5520
5521
5522
5523
5524
5525
5526
5527
5528
5529
5530
5531
5532
5533
5534
5535
5536
5537
5538
5539
5540
5541
5542
5543
5544
5545
5546
5547
5548
5549
5550
5551
5552
5553
5554
5555
5556
5557
5558
5559
5560
5561
5562
5563
5564
5565
5566
5567
5568
5569
5570
5571
5572
5573
5574
5575
5576
5577
5578
5579
5580
5581
5582
5583
5584
5585
5586
5587
5588
5589
5590
5591
5592
5593
5594
5595
5596
5597
5598
5599
5600
5601
5602
5603
5604
5605
5606
5607
5608
5609
5610
5611
5612
5613
5614
5615
5616
5617
5618
5619
5620
5621
5622
5623
5624
5625
5626
5627
5628
5629
5630
5631
5632
5633
5634
5635
5636
5637
5638
5639
5640
5641
5642
5643
5644
5645
5646
5647
5648
5649
5650
5651
5652
5653
5654
5655
5656
5657
5658
5659
5660
5661
5662
5663
5664
5665
5666
5667
5668
5669
5670
5671
5672
5673
5674
5675
5676
5677
5678
5679
5680
5681
5682
5683
5684
5685
5686
5687
5688
5689
5690
5691
5692
5693
5694
5695
5696
5697
5698
5699
5700
5701
5702
5703
5704
5705
5706
5707
5708
5709
5710
5711
5712
5713
5714
5715
5716
5717
5718
5719
5720
5721
5722
5723
5724
5725
5726
5727
5728
5729
5730
5731
5732
5733
5734
5735
5736
5737
5738
5739
5740
5741
5742
5743
5744
5745
5746
5747
5748
5749
5750
5751
5752
5753
5754
5755
5756
5757
5758
5759
5760
5761
5762
5763
5764
5765
5766
5767
5768
5769
5770
5771
5772
5773
5774
5775
5776
5777
5778
5779
5780
5781
5782
5783
5784
5785
5786
5787
5788
5789
5790
5791
5792
5793
5794
5795
5796
5797
5798
5799
5800
5801
5802
5803
5804
5805
5806
5807
5808
5809
5810
5811
5812
5813
5814
5815
5816
5817
5818
5819
5820
5821
5822
5823
5824
5825
5826
5827
5828
5829
5830
5831
5832
5833
5834
5835
5836
5837
5838
5839
5840
5841
5842
5843
5844
5845
5846
5847
5848
5849
5850
5851
5852
5853
5854
5855
5856
5857
5858
5859
5860
5861
5862
5863
5864
5865
5866
5867
5868
5869
5870
5871
5872
5873
5874
5875
5876
5877
5878
5879
5880
5881
5882
5883
5884
5885
5886
5887
5888
5889
5890
5891
5892
5893
5894
5895
5896
5897
5898
5899
5900
5901
5902
5903
5904
5905
5906
5907
5908
5909
5910
5911
5912
5913
5914
5915
5916
5917
5918
5919
5920
5921
5922
5923
5924
5925
5926
5927
5928
5929
5930
5931
5932
5933
5934
5935
5936
5937
5938
5939
5940
5941
5942
5943
5944
5945
5946
5947
5948
5949
5950
5951
5952
5953
5954
5955
5956
5957
5958
5959
5960
5961
5962
5963
5964
5965
5966
5967
5968
5969
5970
5971
5972
5973
5974
5975
5976
5977
5978
5979
5980
5981
5982
5983
5984
5985
5986
5987
5988
5989
5990
5991
5992
5993
5994
5995
5996
5997
5998
5999
6000
6001
6002
6003
6004
6005
6006
6007
6008
6009
6010
6011
6012
6013
6014
6015
6016
6017
6018
6019
6020
6021
6022
6023
6024
6025
6026
6027
6028
6029
6030
6031
6032
6033
6034
6035
6036
6037
6038
6039
6040
6041
6042
6043
6044
6045
6046
6047
6048
6049
6050
6051
6052
6053
6054
6055
6056
6057
6058
6059
6060
6061
6062
6063
6064
6065
6066
6067
6068
6069
6070
6071
6072
6073
6074
6075
6076
6077
6078
6079
6080
6081
6082
6083
6084
6085
6086
6087
6088
6089
6090
6091
6092
6093
6094
/* $Id$ */

/** @file newgrf.cpp Base of all NewGRF support. */

#include "stdafx.h"

#include <stdarg.h>

#include "openttd.h"
#include "debug.h"
#include "fileio.h"
#include "engine_func.h"
#include "engine_base.h"
#include "spritecache.h"
#include "sprite.h"
#include "newgrf.h"
#include "variables.h"
#include "bridge.h"
#include "town.h"
#include "newgrf_engine.h"
#include "newgrf_text.h"
#include "fontcache.h"
#include "currency.h"
#include "landscape.h"
#include "newgrf_config.h"
#include "newgrf_house.h"
#include "newgrf_sound.h"
#include "newgrf_spritegroup.h"
#include "newgrf_station.h"
#include "cargotype.h"
#include "industry.h"
#include "newgrf_canal.h"
#include "newgrf_commons.h"
#include "newgrf_townname.h"
#include "newgrf_industries.h"
#include "gfxinit.h"
#include "rev.h"
#include "fios.h"
#include "rail.h"
#include "strings_func.h"
#include "gfx_func.h"
#include "date_func.h"
#include "vehicle_func.h"
#include "sound_func.h"
#include "string_func.h"
#include "road_func.h"
#include "player_base.h"
#include "settings_type.h"
#include "network/network.h"
#include "map_func.h"
#include <map>

#include "table/strings.h"
#include "table/sprites.h"
#include "table/town_land.h"
#include "table/build_industry.h"
#include "table/landscape_sprite.h"

/* TTDPatch extended GRF format codec
 * (c) Petr Baudis 2004 (GPL'd)
 * Changes by Florian octo Forster are (c) by the OpenTTD development team.
 *
 * Contains portions of documentation by TTDPatch team.
 * Thanks especially to Josef Drexler for the documentation as well as a lot
 * of help at #tycoon. Also thanks to Michael Blunck for is GRF files which
 * served as subject to the initial testing of this codec. */


static int _skip_sprites; // XXX
static uint _file_index; // XXX

static GRFFile *_cur_grffile;
GRFFile *_first_grffile;
static SpriteID _cur_spriteid;
static GrfLoadingStage _cur_stage;
static uint32 _nfo_line;

static GRFConfig *_cur_grfconfig;

/* Miscellaneous GRF features, set by Action 0x0D, parameter 0x9E */
static byte _misc_grf_features = 0;

/* 32 * 8 = 256 flags. Apparently TTDPatch uses this many.. */
static uint32 _ttdpatch_flags[8];

/* Indicates which are the newgrf features currently loaded ingame */
GRFLoadedFeatures _loaded_newgrf_features;

enum GrfDataType {
	GDT_SOUND,
};

static byte _grf_data_blocks;
static GrfDataType _grf_data_type;


typedef void (*SpecialSpriteHandler)(byte *buf, size_t len);

enum {
	MAX_STATIONS = 256,
};

/* Temporary data used when loading only */
struct GRFTempEngineData {
	uint16 cargo_allowed;
	uint16 cargo_disallowed;
};

static GRFTempEngineData *_gted;

/* Contains the GRF ID of the owner of a vehicle if it has been reserved.
 * GRM for vehicles is only used if dynamic engine allocation is disabled,
 * so 256 is the number of original engines. */
static uint32 _grm_engines[256];

/* Contains the GRF ID of the owner of a cargo if it has been reserved */
static uint32 _grm_cargos[NUM_CARGO * 2];

struct GRFLocation {
	uint32 grfid;
	uint32 nfoline;

	GRFLocation(uint32 grfid, uint32 nfoline) : grfid(grfid), nfoline(nfoline) { }

	bool operator<(const GRFLocation &other) const
	{
		return this->grfid < other.grfid || (this->grfid == other.grfid && this->nfoline < other.nfoline);
	}

	bool operator==(const GRFLocation &other) const
	{
		return this->grfid == other.grfid && this->nfoline == other.nfoline;
	}
};

static std::map<GRFLocation, SpriteID> _grm_sprites;
typedef std::map<GRFLocation, byte*> GRFLineToSpriteOverride;
GRFLineToSpriteOverride _grf_line_to_action6_sprite_override;

/** DEBUG() function dedicated to newGRF debugging messages
 * Function is essentialy the same as DEBUG(grf, severity, ...) with the
 * addition of file:line information when parsing grf files.
 * NOTE: for the above reason(s) grfmsg() should ONLY be used for
 * loading/parsing grf files, not for runtime debug messages as there
 * is no file information available during that time.
 * @param severity debugging severity level, see debug.h
 * @param str message in printf() format */
void CDECL grfmsg(int severity, const char *str, ...)
{
	char buf[1024];
	va_list va;

	va_start(va, str);
	vsnprintf(buf, sizeof(buf), str, va);
	va_end(va);

	DEBUG(grf, severity, "[%s:%d] %s", _cur_grfconfig->filename, _nfo_line, buf);
}

static inline bool check_length(size_t real, size_t wanted, const char *str)
{
	if (real >= wanted) return true;
	grfmsg(0, "%s: Invalid pseudo sprite length %d (expected %d)!", str, real, wanted);
	return false;
}

static inline byte grf_load_byte(byte **buf)
{
	return *(*buf)++;
}

static uint16 grf_load_word(byte **buf)
{
	uint16 val = grf_load_byte(buf);
	return val | (grf_load_byte(buf) << 8);
}

static uint16 grf_load_extended(byte** buf)
{
	uint16 val;
	val = grf_load_byte(buf);
	if (val == 0xFF) val = grf_load_word(buf);
	return val;
}

static uint32 grf_load_dword(byte **buf)
{
	uint32 val = grf_load_word(buf);
	return val | (grf_load_word(buf) << 16);
}

static uint32 grf_load_var(byte size, byte **buf)
{
	switch (size) {
		case 1: return grf_load_byte(buf);
		case 2: return grf_load_word(buf);
		case 4: return grf_load_dword(buf);
		default:
			NOT_REACHED();
			return 0;
	}
}

static const char *grf_load_string(byte **buf, size_t max_len)
{
	const char *string   = *(const char **)buf;
	size_t string_length = ttd_strnlen(string, max_len);

	if (string_length == max_len) {
		/* String was not NUL terminated, so make sure it is now. */
		(*buf)[string_length - 1] = '\0';
		grfmsg(7, "String was not terminated with a zero byte.");
	} else {
		/* Increase the string length to include the NUL byte. */
		string_length++;
	}
	*buf += string_length;

	return string;
}

static GRFFile *GetFileByGRFID(uint32 grfid)
{
	GRFFile *file;

	for (file = _first_grffile; file != NULL; file = file->next) {
		if (file->grfid == grfid) break;
	}
	return file;
}

static GRFFile *GetFileByFilename(const char *filename)
{
	GRFFile *file;

	for (file = _first_grffile; file != NULL; file = file->next) {
		if (strcmp(file->filename, filename) == 0) break;
	}
	return file;
}

/** Reset all NewGRFData that was used only while processing data */
static void ClearTemporaryNewGRFData()
{
	/* Clear the GOTO labels used for GRF processing */
	for (GRFLabel *l = _cur_grffile->label; l != NULL;) {
		GRFLabel *l2 = l->next;
		free(l);
		l = l2;
	}
	_cur_grffile->label = NULL;

	/* Clear the list of spritegroups */
	free(_cur_grffile->spritegroups);
	_cur_grffile->spritegroups = NULL;
	_cur_grffile->spritegroups_count = 0;
}


typedef std::map<StringID *, uint32> StringIDToGRFIDMapping;
StringIDToGRFIDMapping _string_to_grf_mapping;

/** Used when setting an object's property to map to the GRF's strings
 * while taking in consideration the "drift" between TTDPatch string system and OpenTTD's one
 * @param grfid Id of the grf file
 * @param str StringID that we want to have the equivalent in OoenTTD
 * @return the properly adjusted StringID
 */
StringID MapGRFStringID(uint32 grfid, StringID str)
{
	/* StringID table for TextIDs 0x4E->0x6D */
	static StringID units_volume[] = {
		STR_NOTHING,    STR_PASSENGERS, STR_TONS,       STR_BAGS,
		STR_LITERS,     STR_ITEMS,      STR_CRATES,     STR_TONS,
		STR_TONS,       STR_TONS,       STR_TONS,       STR_BAGS,
		STR_TONS,       STR_TONS,       STR_TONS,       STR_BAGS,
		STR_TONS,       STR_TONS,       STR_BAGS,       STR_LITERS,
		STR_TONS,       STR_LITERS,     STR_TONS,       STR_NOTHING,
		STR_BAGS,       STR_LITERS,     STR_TONS,       STR_NOTHING,
		STR_TONS,       STR_NOTHING,    STR_LITERS,     STR_NOTHING
	};

	/* 0xD0 and 0xDC stand for all the TextIDs in the range
	 * of 0xD000 (misc graphics texts) and 0xDC00 (misc persistent texts).
	 * These strings are unique to each grf file, and thus require to be used with the
	 * grfid in which they are declared */
	switch (GB(str, 8, 8)) {
		case 0xD0: case 0xD1: case 0xD2: case 0xD3:
		case 0xDC:
			return GetGRFStringID(grfid, str);

		case 0xD4: case 0xD5: case 0xD6: case 0xD7:
			/* Strings embedded via 0x81 have 0x400 added to them (no real
			 * explanation why...) */
			return GetGRFStringID(grfid, str - 0x400);

		default: break;
	}

#define TEXID_TO_STRINGID(begin, end, stringid) if (str >= begin && str <= end) return str + (stringid - begin)
	/* We have some changes in our cargo strings, resulting in some missing. */
	TEXID_TO_STRINGID(0x000E, 0x002D, STR_000E);
	TEXID_TO_STRINGID(0x002E, 0x004D, STR_002E);
	if (str >= 0x004E && str <= 0x006D) str = units_volume[str - 0x004E];
	TEXID_TO_STRINGID(0x006E, 0x008D, STR_QUANTITY_NOTHING);
	TEXID_TO_STRINGID(0x008E, 0x00AD, STR_ABBREV_NOTHING);

	/* Map building names according to our lang file changes. There are several
	 * ranges of house ids, all of which need to be remapped to allow newgrfs
	 * to use original house names. */
	TEXID_TO_STRINGID(0x200F, 0x201F, STR_200F_TALL_OFFICE_BLOCK);
	TEXID_TO_STRINGID(0x2036, 0x2041, STR_2036_COTTAGES);
	TEXID_TO_STRINGID(0x2059, 0x205C, STR_2059_IGLOO);

	/* Same thing for industries, since the introduction of 4 new strings above STR_482A_PRODUCTION_LAST_MONTH */
	TEXID_TO_STRINGID(0x482A, 0x483B, STR_482A_PRODUCTION_LAST_MONTH);
#undef TEXTID_TO_STRINGID

	if (str == STR_NULL) return STR_EMPTY;

	return str;
}

static uint8 MapDOSColour(uint8 colour)
{
	if (_use_dos_palette) return colour;

	if (colour < 10) {
		static uint8 dos_to_win_colour_map[] = { 0, 215, 216, 136, 88, 106, 32, 33, 40, 245 };
		return dos_to_win_colour_map[colour];
	}

	if (colour >= 245 && colour < 254) return colour - 28;

	return colour;
}

static std::map<uint32, uint32> _grf_id_overrides;

static void SetNewGRFOverride(uint32 source_grfid, uint32 target_grfid)
{
	_grf_id_overrides[source_grfid] = target_grfid;
	grfmsg(5, "SetNewGRFOverride: Added override of 0x%X to 0x%X", BSWAP32(source_grfid), BSWAP32(target_grfid));
}

static Engine *GetNewEngine(const GRFFile *file, VehicleType type, uint16 internal_id)
{
	/* Hack for add-on GRFs that need to modify another GRF's engines. This lets
	 * them use the same engine slots. */
	const GRFFile *grf_match = NULL;
	if (_settings_game.vehicle.dynamic_engines) {
		uint32 override = _grf_id_overrides[file->grfid];
		if (override != 0) {
			grf_match = GetFileByGRFID(override);
			if (grf_match == NULL) {
				grfmsg(5, "Tried mapping from GRFID %x to %x but target is not loaded", BSWAP32(file->grfid), BSWAP32(override));
			} else {
				grfmsg(5, "Mapping from GRFID %x to %x", BSWAP32(file->grfid), BSWAP32(override));
			}
		}
	}

	/* Check if this vehicle is already defined... */
	Engine *e = NULL;
	FOR_ALL_ENGINES(e) {
		if (_settings_game.vehicle.dynamic_engines && e->grffile != NULL && e->grffile != file && e->grffile != grf_match) continue;
		if (e->type != type) continue;
		if (e->internal_id != internal_id) continue;

		if (e->grffile == NULL) {
			e->grffile = file;
			grfmsg(5, "Replaced engine at index %d for GRFID %x, type %d, index %d", e->index, BSWAP32(file->grfid), type, internal_id);
		}
		return e;
	}

	uint engine_pool_size = GetEnginePoolSize();

	/* ... it's not, so create a new one based off an existing engine */
	e = new Engine(type, internal_id);
	e->grffile = file;

	if (engine_pool_size != GetEnginePoolSize()) {
		/* Resize temporary engine data ... */
		_gted = ReallocT(_gted, GetEnginePoolSize());

		/* and blank the new block. */
		size_t len = (GetEnginePoolSize() - engine_pool_size) * sizeof(*_gted);
		memset(_gted + engine_pool_size, 0, len);
	}

	grfmsg(5, "Created new engine at index %d for GRFID %x, type %d, index %d", e->index, BSWAP32(file->grfid), type, internal_id);

	return e;
}

EngineID GetNewEngineID(const GRFFile *file, VehicleType type, uint16 internal_id)
{
	extern uint32 GetNewGRFOverride(uint32 grfid);

	const GRFFile *grf_match = NULL;
	if (_settings_game.vehicle.dynamic_engines) {
		uint32 override = _grf_id_overrides[file->grfid];
		if (override != 0) grf_match = GetFileByGRFID(override);
	}

	const Engine *e = NULL;
	FOR_ALL_ENGINES(e) {
		if (_settings_game.vehicle.dynamic_engines && e->grffile != file && (grf_match == NULL || e->grffile != grf_match)) continue;
		if (e->type != type) continue;
		if (e->internal_id != internal_id) continue;

		return e->index;
	}

	return INVALID_ENGINE;
}

/** Map the colour modifiers of TTDPatch to those that Open is using.
 * @param grf_sprite pointer to the structure been modified
 */
static void MapSpriteMappingRecolour(PalSpriteID *grf_sprite)
{
	if (HasBit(grf_sprite->pal, 14)) {
		ClrBit(grf_sprite->pal, 14);
		SetBit(grf_sprite->sprite, SPRITE_MODIFIER_OPAQUE);
	}

	if (HasBit(grf_sprite->sprite, 14)) {
		ClrBit(grf_sprite->sprite, 14);
		SetBit(grf_sprite->sprite, PALETTE_MODIFIER_TRANSPARENT);
	}

	if (HasBit(grf_sprite->sprite, 15)) {
		ClrBit(grf_sprite->sprite, 15);
		SetBit(grf_sprite->sprite, PALETTE_MODIFIER_COLOR);
	}
}

typedef bool (*VCI_Handler)(uint engine, int numinfo, int prop, byte **buf, int len);

static bool RailVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	for (int i = 0; i < numinfo; i++) {
		Engine *e = GetNewEngine(_cur_grffile, VEH_TRAIN, engine + i);
		EngineInfo *ei = &e->info;
		RailVehicleInfo *rvi = &e->u.rail;

		switch (prop) {
			case 0x05: { // Track type
				uint8 tracktype = grf_load_byte(&buf);

				switch (tracktype) {
					case 0: rvi->railtype = rvi->engclass >= 2 ? RAILTYPE_ELECTRIC : RAILTYPE_RAIL; break;
					case 1: rvi->railtype = RAILTYPE_MONO; break;
					case 2: rvi->railtype = RAILTYPE_MAGLEV; break;
					default:
						grfmsg(1, "RailVehicleChangeInfo: Invalid track type %d specified, ignoring", tracktype);
						break;
				}
			} break;

			case 0x08: // AI passenger service
				/* Tells the AI that this engine is designed for
				 * passenger services and shouldn't be used for freight. */
				rvi->ai_passenger_only = grf_load_byte(&buf);
				break;

			case 0x09: { // Speed (1 unit is 1 kmh)
				uint16 speed = grf_load_word(&buf);
				if (speed == 0xFFFF) speed = 0;

				rvi->max_speed = speed;
			} break;

			case 0x0B: // Power
				rvi->power = grf_load_word(&buf);

				/* Set engine / wagon state based on power */
				if (rvi->power != 0) {
					if (rvi->railveh_type == RAILVEH_WAGON) {
						rvi->railveh_type = RAILVEH_SINGLEHEAD;
					}
				} else {
					rvi->railveh_type = RAILVEH_WAGON;
				}
				break;

			case 0x0D: // Running cost factor
				rvi->running_cost = grf_load_byte(&buf);
				break;

			case 0x0E: { // Running cost base
				uint32 base = grf_load_dword(&buf);

				/* These magic numbers are used in GRFs to specify the base cost:
				 * http://wiki.ttdpatch.net/tiki-index.php?page=BaseCosts
				 */
				if (base == 0) {
					rvi->running_cost_class = 0xFF;
				} else if (base < 0x4B34 || base > 0x4C54 || (base - 0x4B34) % 6 != 0) {
					grfmsg(1, "RailVehicleChangeInfo: Unsupported running cost base 0x%04X, ignoring", base);
				} else {
					/* Convert the magic number to an index into the price data */
					rvi->running_cost_class = (base - 0x4B34) / 6;
				}
			} break;

			case 0x12: { // Sprite ID
				uint8 spriteid = grf_load_byte(&buf);

				/* TTD sprite IDs point to a location in a 16bit array, but we use it
				 * as an array index, so we need it to be half the original value. */
				if (spriteid < 0xFD) spriteid >>= 1;

				rvi->image_index = spriteid;
			} break;

			case 0x13: { // Dual-headed
				uint8 dual = grf_load_byte(&buf);

				if (dual != 0) {
					rvi->railveh_type = RAILVEH_MULTIHEAD;
				} else {
					rvi->railveh_type = rvi->power == 0 ?
						RAILVEH_WAGON : RAILVEH_SINGLEHEAD;
				}
			} break;

			case 0x14: // Cargo capacity
				rvi->capacity = grf_load_byte(&buf);
				break;

			case 0x15: { // Cargo type
				uint8 ctype = grf_load_byte(&buf);

				if (ctype < NUM_CARGO && HasBit(_cargo_mask, ctype)) {
					rvi->cargo_type = ctype;
				} else {
					rvi->cargo_type = CT_INVALID;
					grfmsg(2, "RailVehicleChangeInfo: Invalid cargo type %d, using first refittable", ctype);
				}
			} break;

			case 0x16: // Weight
				SB(rvi->weight, 0, 8, grf_load_byte(&buf));
				break;

			case 0x17: // Cost factor
				rvi->cost_factor = grf_load_byte(&buf);
				break;

			case 0x18: // AI rank
				rvi->ai_rank = grf_load_byte(&buf);
				break;

			case 0x19: { // Engine traction type
				/* What do the individual numbers mean?
				 * 0x00 .. 0x07: Steam
				 * 0x08 .. 0x27: Diesel
				 * 0x28 .. 0x31: Electric
				 * 0x32 .. 0x37: Monorail
				 * 0x38 .. 0x41: Maglev
				 */
				uint8 traction = grf_load_byte(&buf);
				EngineClass engclass;

				if (traction <= 0x07) {
					engclass = EC_STEAM;
				} else if (traction <= 0x27) {
					engclass = EC_DIESEL;
				} else if (traction <= 0x31) {
					engclass = EC_ELECTRIC;
				} else if (traction <= 0x37) {
					engclass = EC_MONORAIL;
				} else if (traction <= 0x41) {
					engclass = EC_MAGLEV;
				} else {
					break;
				}
				if (rvi->railtype == RAILTYPE_RAIL     && engclass >= EC_ELECTRIC) rvi->railtype = RAILTYPE_ELECTRIC;
				if (rvi->railtype == RAILTYPE_ELECTRIC && engclass  < EC_ELECTRIC) rvi->railtype = RAILTYPE_RAIL;

				rvi->engclass = engclass;
			} break;

			case 0x1A: // Alter purchase list sort order
				AlterVehicleListOrder(e->index, grf_load_extended(&buf));
				break;

			case 0x1B: // Powered wagons power bonus
				rvi->pow_wag_power = grf_load_word(&buf);
				break;

			case 0x1C: // Refit cost
				ei->refit_cost = grf_load_byte(&buf);
				break;

			case 0x1D: // Refit cargo
				ei->refit_mask = grf_load_dword(&buf);
				break;

			case 0x1E: // Callback
				ei->callbackmask = grf_load_byte(&buf);
				break;

			case 0x1F: // Tractive effort coefficient
				rvi->tractive_effort = grf_load_byte(&buf);
				break;

			case 0x20: // Air drag
				/** @todo Air drag for trains. */
				grf_load_byte(&buf);
				ret = true;
				break;

			case 0x21: // Shorter vehicle
				rvi->shorten_factor = grf_load_byte(&buf);
				break;

			case 0x22: // Visual effect
				/** @see note in engine.h about rvi->visual_effect */
				rvi->visual_effect = grf_load_byte(&buf);
				break;

			case 0x23: // Powered wagons weight bonus
				rvi->pow_wag_weight = grf_load_byte(&buf);
				break;

			case 0x24: { // High byte of vehicle weight
				byte weight = grf_load_byte(&buf);

				if (weight > 4) {
					grfmsg(2, "RailVehicleChangeInfo: Nonsensical weight of %d tons, ignoring", weight << 8);
				} else {
					SB(rvi->weight, 8, 8, weight);
				}
			} break;

			case 0x25: // User-defined bit mask to set when checking veh. var. 42
				rvi->user_def_data = grf_load_byte(&buf);
				break;

			case 0x26: // Retire vehicle early
				ei->retire_early = grf_load_byte(&buf);
				break;

			case 0x27: // Miscellaneous flags
				ei->misc_flags = grf_load_byte(&buf);
				_loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC);
				break;

			case 0x28: // Cargo classes allowed
				_gted[e->index].cargo_allowed = grf_load_word(&buf);
				break;

			case 0x29: // Cargo classes disallowed
				_gted[e->index].cargo_disallowed = grf_load_word(&buf);
				break;

			case 0x2A: // Long format introduction date (days since year 0)
				ei->base_intro = grf_load_dword(&buf);
				break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

static bool RoadVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	for (int i = 0; i < numinfo; i++) {
		Engine *e = GetNewEngine(_cur_grffile, VEH_ROAD, engine + i);
		EngineInfo *ei = &e->info;
		RoadVehicleInfo *rvi = &e->u.road;

		switch (prop) {
			case 0x08: // Speed (1 unit is 0.5 kmh)
				rvi->max_speed = grf_load_byte(&buf);
				break;

			case 0x09: // Running cost factor
				rvi->running_cost = grf_load_byte(&buf);
				break;

			case 0x0A: { // Running cost base
				uint32 base= grf_load_dword(&buf);

				/* These magic numbers are used in GRFs to specify the base cost:
				 * http://wiki.ttdpatch.net/tiki-index.php?page=BaseCosts
				 */
				if (base == 0) {
					rvi->running_cost_class = 0xFF;
				} else if (base < 0x4B34 || base > 0x4C54 || (base - 0x4B34) % 6 != 0) {
					grfmsg(1, "RailVehicleChangeInfo: Unsupported running cost base 0x%04X, ignoring", base);
				} else {
					/* Convert the magic number to an index into the price data */
					rvi->running_cost_class = (base - 0x4B34) / 6;
				}

				break;
			}

			case 0x0E: { // Sprite ID
				uint8 spriteid = grf_load_byte(&buf);

				/* cars have different custom id in the GRF file */
				if (spriteid == 0xFF) spriteid = 0xFD;

				if (spriteid < 0xFD) spriteid >>= 1;

				rvi->image_index = spriteid;
			} break;

			case 0x0F: // Cargo capacity
				rvi->capacity = grf_load_byte(&buf);
				break;

			case 0x10: { // Cargo type
				uint8 cargo = grf_load_byte(&buf);

				if (cargo < NUM_CARGO && HasBit(_cargo_mask, cargo)) {
					rvi->cargo_type = cargo;
				} else {
					rvi->cargo_type = CT_INVALID;
					grfmsg(2, "RoadVehicleChangeInfo: Invalid cargo type %d, using first refittable", cargo);
				}
			} break;

			case 0x11: // Cost factor
				rvi->cost_factor = grf_load_byte(&buf);
				break;

			case 0x12: // SFX
				rvi->sfx = (SoundFx)grf_load_byte(&buf);
				break;

			case 0x13: // Power in 10hp
			case 0x14: // Weight in 1/4 tons
			case 0x15: // Speed in mph*0.8
				/** @todo Support for road vehicles realistic power
				 * computations (called rvpower in TTDPatch) is just
				 * missing in OTTD yet. --pasky */
				grf_load_byte(&buf);
				ret = true;
				break;

			case 0x16: // Cargos available for refitting
				ei->refit_mask = grf_load_dword(&buf);
				break;

			case 0x17: // Callback mask
				ei->callbackmask = grf_load_byte(&buf);
				break;

			case 0x18: // Tractive effort
			case 0x19: // Air drag
				/** @todo Tractive effort and air drag for road vehicles. */
				grf_load_byte(&buf);
				ret = true;
				break;

			case 0x1A: // Refit cost
				ei->refit_cost = grf_load_byte(&buf);
				break;

			case 0x1B: // Retire vehicle early
				ei->retire_early = grf_load_byte(&buf);
				break;

			case 0x1C: // Miscellaneous flags
				ei->misc_flags = grf_load_byte(&buf);
				_loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC);
				break;

			case 0x1D: // Cargo classes allowed
				_gted[e->index].cargo_allowed = grf_load_word(&buf);
				break;

			case 0x1E: // Cargo classes disallowed
				_gted[e->index].cargo_disallowed = grf_load_word(&buf);
				break;

			case 0x1F: // Long format introduction date (days since year 0)
				ei->base_intro = grf_load_dword(&buf);
				break;

			case 0x20: // Alter purchase list sort order
				AlterVehicleListOrder(e->index, grf_load_extended(&buf));
				break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

static bool ShipVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	for (int i = 0; i < numinfo; i++) {
		Engine *e = GetNewEngine(_cur_grffile, VEH_SHIP, engine + i);
		EngineInfo *ei = &e->info;
		ShipVehicleInfo *svi = &e->u.ship;

		switch (prop) {
			case 0x08: { // Sprite ID
				uint8 spriteid = grf_load_byte(&buf);

				/* ships have different custom id in the GRF file */
				if (spriteid == 0xFF) spriteid = 0xFD;

				if (spriteid < 0xFD) spriteid >>= 1;

				svi->image_index = spriteid;
			} break;

			case 0x09: // Refittable
				svi->refittable = (grf_load_byte(&buf) != 0);
				break;

			case 0x0A: // Cost factor
				svi->cost_factor = grf_load_byte(&buf);
				break;

			case 0x0B: // Speed (1 unit is 0.5 kmh)
				svi->max_speed = grf_load_byte(&buf);
				break;

			case 0x0C: { // Cargo type
				uint8 cargo = grf_load_byte(&buf);

				if (cargo < NUM_CARGO && HasBit(_cargo_mask, cargo)) {
					svi->cargo_type = cargo;
				} else {
					svi->cargo_type = CT_INVALID;
					grfmsg(2, "ShipVehicleChangeInfo: Invalid cargo type %d, using first refittable", cargo);
				}
			} break;

			case 0x0D: // Cargo capacity
				svi->capacity = grf_load_word(&buf);
				break;

			case 0x0F: // Running cost factor
				svi->running_cost = grf_load_byte(&buf);
				break;

			case 0x10: // SFX
				svi->sfx = (SoundFx)grf_load_byte(&buf);
				break;

			case 0x11: // Cargos available for refitting
				ei->refit_mask = grf_load_dword(&buf);
				break;

			case 0x12: // Callback mask
				ei->callbackmask = grf_load_byte(&buf);
				break;

			case 0x13: // Refit cost
				ei->refit_cost = grf_load_byte(&buf);
				break;

			case 0x14: // Ocean speed fraction
			case 0x15: // Canal speed fraction
				/** @todo Speed fractions for ships on oceans and canals */
				grf_load_byte(&buf);
				ret = true;
				break;

			case 0x16: // Retire vehicle early
				ei->retire_early = grf_load_byte(&buf);
				break;

			case 0x17: // Miscellaneous flags
				ei->misc_flags = grf_load_byte(&buf);
				_loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC);
				break;

			case 0x18: // Cargo classes allowed
				_gted[e->index].cargo_allowed = grf_load_word(&buf);
				break;

			case 0x19: // Cargo classes disallowed
				_gted[e->index].cargo_disallowed = grf_load_word(&buf);
				break;

			case 0x1A: // Long format introduction date (days since year 0)
				ei->base_intro = grf_load_dword(&buf);
				break;

			case 0x1B: // Alter purchase list sort order
				AlterVehicleListOrder(e->index, grf_load_extended(&buf));
				break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

static bool AircraftVehicleChangeInfo(uint engine, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	for (int i = 0; i < numinfo; i++) {
		Engine *e = GetNewEngine(_cur_grffile, VEH_AIRCRAFT, engine + i);
		EngineInfo *ei = &e->info;
		AircraftVehicleInfo *avi = &e->u.air;

		switch (prop) {
			case 0x08: { // Sprite ID
				uint8 spriteid = grf_load_byte(&buf);

				/* aircraft have different custom id in the GRF file */
				if (spriteid == 0xFF) spriteid = 0xFD;

				if (spriteid < 0xFD) spriteid >>= 1;

				avi->image_index = spriteid;
			} break;

			case 0x09: // Helicopter
				if (grf_load_byte(&buf) == 0) {
					avi->subtype = AIR_HELI;
				} else {
					SB(avi->subtype, 0, 1, 1); // AIR_CTOL
				}
				break;

			case 0x0A: // Large
				SB(avi->subtype, 1, 1, (grf_load_byte(&buf) != 0 ? 1 : 0)); // AIR_FAST
				break;

			case 0x0B: // Cost factor
				avi->cost_factor = grf_load_byte(&buf);
				break;

			case 0x0C: // Speed (1 unit is 8 mph, we translate to 1 unit is 1 km/h)
				avi->max_speed = (grf_load_byte(&buf) * 129) / 10;
				break;

			case 0x0D: // Acceleration
				avi->acceleration = (grf_load_byte(&buf) * 129) / 10;
				break;

			case 0x0E: // Running cost factor
				avi->running_cost = grf_load_byte(&buf);
				break;

			case 0x0F: // Passenger capacity
				avi->passenger_capacity = grf_load_word(&buf);
				break;

			case 0x11: // Mail capacity
				avi->mail_capacity = grf_load_byte(&buf);
				break;

			case 0x12: // SFX
				avi->sfx = (SoundFx)grf_load_byte(&buf);
				break;

			case 0x13: // Cargos available for refitting
				ei->refit_mask = grf_load_dword(&buf);
				break;

			case 0x14: // Callback mask
				ei->callbackmask = grf_load_byte(&buf);
				break;

			case 0x15: // Refit cost
				ei->refit_cost = grf_load_byte(&buf);
				break;

			case 0x16: // Retire vehicle early
				ei->retire_early = grf_load_byte(&buf);
				break;

			case 0x17: // Miscellaneous flags
				ei->misc_flags = grf_load_byte(&buf);
				_loaded_newgrf_features.has_2CC |= HasBit(ei->misc_flags, EF_USES_2CC);
				break;

			case 0x18: // Cargo classes allowed
				_gted[e->index].cargo_allowed = grf_load_word(&buf);
				break;

			case 0x19: // Cargo classes disallowed
				_gted[e->index].cargo_disallowed = grf_load_word(&buf);
				break;

			case 0x1A: // Long format introduction date (days since year 0)
				ei->base_intro = grf_load_dword(&buf);
				break;

			case 0x1B: // Alter purchase list sort order
				AlterVehicleListOrder(e->index, grf_load_extended(&buf));
				break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

static bool StationChangeInfo(uint stid, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	if (stid + numinfo > MAX_STATIONS) {
		grfmsg(1, "StationChangeInfo: Station %u is invalid, max %u, ignoring", stid + numinfo, MAX_STATIONS);
		return false;
	}

	/* Allocate station specs if necessary */
	if (_cur_grffile->stations == NULL) _cur_grffile->stations = CallocT<StationSpec*>(MAX_STATIONS);

	for (int i = 0; i < numinfo; i++) {
		StationSpec *statspec = _cur_grffile->stations[stid + i];

		/* Check that the station we are modifying is defined. */
		if (statspec == NULL && prop != 0x08) {
			grfmsg(2, "StationChangeInfo: Attempt to modify undefined station %u, ignoring", stid + i);
			continue;
		}

		switch (prop) {
			case 0x08: { // Class ID
				StationSpec **spec = &_cur_grffile->stations[stid + i];

				/* Property 0x08 is special; it is where the station is allocated */
				if (*spec == NULL) *spec = CallocT<StationSpec>(1);

				/* Swap classid because we read it in BE meaning WAYP or DFLT */
				uint32 classid = grf_load_dword(&buf);
				(*spec)->sclass = AllocateStationClass(BSWAP32(classid));
			} break;

			case 0x09: // Define sprite layout
				statspec->tiles = grf_load_extended(&buf);
				statspec->renderdata = CallocT<DrawTileSprites>(statspec->tiles);
				statspec->copied_renderdata = false;

				for (uint t = 0; t < statspec->tiles; t++) {
					DrawTileSprites *dts = &statspec->renderdata[t];
					uint seq_count = 0;

					dts->seq = NULL;
					dts->ground.sprite = grf_load_word(&buf);
					dts->ground.pal = grf_load_word(&buf);
					if (dts->ground.sprite == 0) continue;
					if (HasBit(dts->ground.pal, 15)) {
						ClrBit(dts->ground.pal, 15);
						SetBit(dts->ground.sprite, SPRITE_MODIFIER_USE_OFFSET);
					}

					MapSpriteMappingRecolour(&dts->ground);

					while (buf < *bufp + len) {
						DrawTileSeqStruct *dtss;

						/* no relative bounding box support */
						dts->seq = ReallocT((DrawTileSeqStruct*)dts->seq, ++seq_count);
						dtss = (DrawTileSeqStruct*) &dts->seq[seq_count - 1];

						dtss->delta_x = grf_load_byte(&buf);
						if ((byte) dtss->delta_x == 0x80) break;
						dtss->delta_y = grf_load_byte(&buf);
						dtss->delta_z = grf_load_byte(&buf);
						dtss->size_x = grf_load_byte(&buf);
						dtss->size_y = grf_load_byte(&buf);
						dtss->size_z = grf_load_byte(&buf);
						dtss->image.sprite = grf_load_word(&buf);
						dtss->image.pal = grf_load_word(&buf);

						/* Remap flags as ours collide */
						if (HasBit(dtss->image.pal, 15)) {
							ClrBit(dtss->image.pal, 15);
							SetBit(dtss->image.sprite, SPRITE_MODIFIER_USE_OFFSET);
						}

						MapSpriteMappingRecolour(&dtss->image);
					}
				}
				break;

			case 0x0A: { // Copy sprite layout
				byte srcid = grf_load_byte(&buf);
				const StationSpec *srcstatspec = _cur_grffile->stations[srcid];

				statspec->tiles = srcstatspec->tiles;
				statspec->renderdata = srcstatspec->renderdata;
				statspec->copied_renderdata = true;
			} break;

			case 0x0B: // Callback mask
				statspec->callbackmask = grf_load_byte(&buf);
				break;

			case 0x0C: // Disallowed number of platforms
				statspec->disallowed_platforms = grf_load_byte(&buf);
				break;

			case 0x0D: // Disallowed platform lengths
				statspec->disallowed_lengths = grf_load_byte(&buf);
				break;

			case 0x0E: // Define custom layout
				statspec->copied_layouts = false;

				while (buf < *bufp + len) {
					byte length = grf_load_byte(&buf);
					byte number = grf_load_byte(&buf);
					StationLayout layout;
					uint l, p;

					if (length == 0 || number == 0) break;

					//debug("l %d > %d ?", length, stat->lengths);
					if (length > statspec->lengths) {
						statspec->platforms = ReallocT(statspec->platforms, length);
						memset(statspec->platforms + statspec->lengths, 0, length - statspec->lengths);

						statspec->layouts = ReallocT(statspec->layouts, length);
						memset(statspec->layouts + statspec->lengths, 0,
						       (length - statspec->lengths) * sizeof(*statspec->layouts));

						statspec->lengths = length;
					}
					l = length - 1; // index is zero-based

					//debug("p %d > %d ?", number, stat->platforms[l]);
					if (number > statspec->platforms[l]) {
						statspec->layouts[l] = ReallocT(statspec->layouts[l], number);
						/* We expect NULL being 0 here, but C99 guarantees that. */
						memset(statspec->layouts[l] + statspec->platforms[l], 0,
						       (number - statspec->platforms[l]) * sizeof(**statspec->layouts));

						statspec->platforms[l] = number;
					}

					p = 0;
					layout = MallocT<byte>(length * number);
					for (l = 0; l < length; l++) {
						for (p = 0; p < number; p++) {
							layout[l * number + p] = grf_load_byte(&buf);
						}
					}

					l--;
					p--;
					free(statspec->layouts[l][p]);
					statspec->layouts[l][p] = layout;
				}
				break;

			case 0x0F: { // Copy custom layout
				byte srcid = grf_load_byte(&buf);
				const StationSpec *srcstatspec = _cur_grffile->stations[srcid];

				statspec->lengths   = srcstatspec->lengths;
				statspec->platforms = srcstatspec->platforms;
				statspec->layouts   = srcstatspec->layouts;
				statspec->copied_layouts = true;
			} break;

			case 0x10: // Little/lots cargo threshold
				statspec->cargo_threshold = grf_load_word(&buf);
				break;

			case 0x11: // Pylon placement
				statspec->pylons = grf_load_byte(&buf);
				break;

			case 0x12: // Cargo types for random triggers
				statspec->cargo_triggers = grf_load_dword(&buf);
				break;

			case 0x13: // General flags
				statspec->flags = grf_load_byte(&buf);
				break;

			case 0x14: // Overhead wire placement
				statspec->wires = grf_load_byte(&buf);
				break;

			case 0x15: // Blocked tiles
				statspec->blocked = grf_load_byte(&buf);
				break;

			case 0x16: // Animation info
				statspec->anim_frames = grf_load_byte(&buf);
				statspec->anim_status = grf_load_byte(&buf);
				break;

			case 0x17: // Animation speed
				statspec->anim_speed = grf_load_byte(&buf);
				break;

			case 0x18: // Animation triggers
				statspec->anim_triggers = grf_load_word(&buf);
				break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

static bool CanalChangeInfo(uint id, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	if (id + numinfo > CF_END) {
		grfmsg(1, "CanalChangeInfo: Canal feature %u is invalid, max %u, ignoreing", id + numinfo, CF_END);
		return false;
	}

	for (int i = 0; i < numinfo; i++) {
		WaterFeature *wf = &_water_feature[id + i];

		switch (prop) {
			case 0x08:
				wf->callbackmask = grf_load_byte(&buf);
				break;

			case 0x09:
				wf->flags = grf_load_byte(&buf);
				break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

static bool BridgeChangeInfo(uint brid, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	if (brid + numinfo > MAX_BRIDGES) {
		grfmsg(1, "BridgeChangeInfo: Bridge %u is invalid, max %u, ignoring", brid + numinfo, MAX_BRIDGES);
		return false;
	}

	for (int i = 0; i < numinfo; i++) {
		BridgeSpec *bridge = &_bridge[brid + i];

		switch (prop) {
			case 0x08: // Year of availability
				bridge->avail_year = ORIGINAL_BASE_YEAR + grf_load_byte(&buf);
				break;

			case 0x09: // Minimum length
				bridge->min_length = grf_load_byte(&buf);
				break;

			case 0x0A: // Maximum length
				bridge->max_length = grf_load_byte(&buf);
				break;

			case 0x0B: // Cost factor
				bridge->price = grf_load_byte(&buf);
				break;

			case 0x0C: // Maximum speed
				bridge->speed = grf_load_word(&buf);
				break;

			case 0x0D: { // Bridge sprite tables
				byte tableid = grf_load_byte(&buf);
				byte numtables = grf_load_byte(&buf);

				if (bridge->sprite_table == NULL) {
					/* Allocate memory for sprite table pointers and zero out */
					bridge->sprite_table = CallocT<PalSpriteID*>(7);
				}

				for (; numtables-- != 0; tableid++) {
					if (tableid >= 7) { // skip invalid data
						grfmsg(1, "BridgeChangeInfo: Table %d >= 7, skipping", tableid);
						for (byte sprite = 0; sprite < 32; sprite++) grf_load_dword(&buf);
						continue;
					}

					if (bridge->sprite_table[tableid] == NULL) {
						bridge->sprite_table[tableid] = MallocT<PalSpriteID>(32);
					}

					for (byte sprite = 0; sprite < 32; sprite++) {
						SpriteID image = grf_load_word(&buf);
						SpriteID pal   = grf_load_word(&buf);

						bridge->sprite_table[tableid][sprite].sprite = image;
						bridge->sprite_table[tableid][sprite].pal    = pal;

						MapSpriteMappingRecolour(&bridge->sprite_table[tableid][sprite]);
					}
				}
			} break;

			case 0x0E: // Flags; bit 0 - disable far pillars
				bridge->flags = grf_load_byte(&buf);
				break;

			case 0x0F: // Long format year of availability (year since year 0)
				bridge->avail_year = Clamp(grf_load_dword(&buf), MIN_YEAR, MAX_YEAR);
				break;

			case 0x10: { // purchase string
				StringID newone = GetGRFStringID(_cur_grffile->grfid, grf_load_word(&buf));
				if (newone != STR_UNDEFINED) bridge->material = newone;
				} break;

			case 0x11: // description of bridge with rails or roads
			case 0x12: {
				StringID newone = GetGRFStringID(_cur_grffile->grfid, grf_load_word(&buf));
				if (newone != STR_UNDEFINED) bridge->transport_name[prop - 0x11] = newone;
				} break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

static bool TownHouseChangeInfo(uint hid, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	if (hid + numinfo > HOUSE_MAX) {
		grfmsg(1, "TownHouseChangeInfo: Too many houses loaded (%u), max (%u). Ignoring.", hid + numinfo, HOUSE_MAX);
		return false;
	}

	/* Allocate house specs if they haven't been allocated already. */
	if (_cur_grffile->housespec == NULL) {
		_cur_grffile->housespec = CallocT<HouseSpec*>(HOUSE_MAX);
	}

	for (int i = 0; i < numinfo; i++) {
		HouseSpec *housespec = _cur_grffile->housespec[hid + i];

		if (prop != 0x08 && housespec == NULL) {
			grfmsg(2, "TownHouseChangeInfo: Attempt to modify undefined house %u. Ignoring.", hid + i);
			continue;
		}

		switch (prop) {
			case 0x08: { // Substitute building type, and definition of a new house
				HouseSpec **house = &_cur_grffile->housespec[hid + i];
				byte subs_id = grf_load_byte(&buf);

				if (subs_id == 0xFF) {
					/* Instead of defining a new house, a substitute house id
					 * of 0xFF disables the old house with the current id. */
					_house_specs[hid + i].enabled = false;
					continue;
				} else if (subs_id >= NEW_HOUSE_OFFSET) {
					/* The substitute id must be one of the original houses. */
					grfmsg(2, "TownHouseChangeInfo: Attempt to use new house %u as substitute house for %u. Ignoring.", subs_id, hid + i);
					return false;
				}

				/* Allocate space for this house. */
				if (*house == NULL) *house = CallocT<HouseSpec>(1);

				housespec = *house;

				memcpy(housespec, &_house_specs[subs_id], sizeof(_house_specs[subs_id]));

				housespec->enabled = true;
				housespec->local_id = hid + i;
				housespec->substitute_id = subs_id;
				housespec->grffile = _cur_grffile;
				housespec->random_colour[0] = 0x04;  // those 4 random colours are the base colour
				housespec->random_colour[1] = 0x08;  // for all new houses
				housespec->random_colour[2] = 0x0C;  // they stand for red, blue, orange and green
				housespec->random_colour[3] = 0x06;

				/* Make sure that the third cargo type is valid in this
				 * climate. This can cause problems when copying the properties
				 * of a house that accepts food, where the new house is valid
				 * in the temperate climate. */
				if (!GetCargo(housespec->accepts_cargo[2])->IsValid()) {
					housespec->cargo_acceptance[2] = 0;
				}

				/**
				 * New houses do not (currently) expect to have a default start
				 * date before 1930, as this breaks the build date stuff.
				 * @see FinaliseHouseArray() for more details.
				 */
				if (housespec->min_year < 1930) housespec->min_year = 1930;

				_loaded_newgrf_features.has_newhouses = true;
			} break;

			case 0x09: // Building flags
				housespec->building_flags = (BuildingFlags)grf_load_byte(&buf);
				break;

			case 0x0A: { // Availability years
				uint16 years = grf_load_word(&buf);
				housespec->min_year = GB(years, 0, 8) > 150 ? MAX_YEAR : ORIGINAL_BASE_YEAR + GB(years, 0, 8);
				housespec->max_year = GB(years, 8, 8) > 150 ? MAX_YEAR : ORIGINAL_BASE_YEAR + GB(years, 8, 8);
			} break;

			case 0x0B: // Population
				housespec->population = grf_load_byte(&buf);
				break;

			case 0x0C: // Mail generation multiplier
				housespec->mail_generation = grf_load_byte(&buf);
				break;

			case 0x0D: // Passenger acceptance
			case 0x0E: // Mail acceptance
				housespec->cargo_acceptance[prop - 0x0D] = grf_load_byte(&buf);
				break;

			case 0x0F: { // Goods/candy, food/fizzy drinks acceptance
				int8 goods = grf_load_byte(&buf);

				/* If value of goods is negative, it means in fact food or, if in toyland, fizzy_drink acceptance.
				 * Else, we have "standard" 3rd cargo type, goods or candy, for toyland once more */
				CargoID cid = (goods >= 0) ? ((_settings_game.game_creation.landscape == LT_TOYLAND) ? CT_CANDY : CT_GOODS) :
						((_settings_game.game_creation.landscape == LT_TOYLAND) ? CT_FIZZY_DRINKS : CT_FOOD);

				/* Make sure the cargo type is valid in this climate. */
				if (!GetCargo(cid)->IsValid()) goods = 0;

				housespec->accepts_cargo[2] = cid;
				housespec->cargo_acceptance[2] = abs(goods); // but we do need positive value here
			} break;

			case 0x10: // Local authority rating decrease on removal
				housespec->remove_rating_decrease = grf_load_word(&buf);
				break;

			case 0x11: // Removal cost multiplier
				housespec->removal_cost = grf_load_byte(&buf);
				break;

			case 0x12: // Building name ID
				housespec->building_name = grf_load_word(&buf);
				_string_to_grf_mapping[&housespec->building_name] = _cur_grffile->grfid;
				break;

			case 0x13: // Building availability mask
				housespec->building_availability = (HouseZones)grf_load_word(&buf);
				break;

			case 0x14: // House callback flags
				housespec->callback_mask = grf_load_byte(&buf);
				break;

			case 0x15: { // House override byte
				byte override = grf_load_byte(&buf);

				/* The house being overridden must be an original house. */
				if (override >= NEW_HOUSE_OFFSET) {
					grfmsg(2, "TownHouseChangeInfo: Attempt to override new house %u with house id %u. Ignoring.", override, hid + i);
					continue;
				}

				_house_mngr.Add(hid + i, _cur_grffile->grfid, override);
			} break;

			case 0x16: // Periodic refresh multiplier
				housespec->processing_time = grf_load_byte(&buf);
				break;

			case 0x17: // Four random colours to use
				for (uint j = 0; j < 4; j++) housespec->random_colour[j] = grf_load_byte(&buf);
				break;

			case 0x18: // Relative probability of appearing
				housespec->probability = grf_load_byte(&buf);
				break;

			case 0x19: // Extra flags
				housespec->extra_flags = (HouseExtraFlags)grf_load_byte(&buf);
				break;

			case 0x1A: // Animation frames
				housespec->animation_frames = grf_load_byte(&buf);
				break;

			case 0x1B: // Animation speed
				housespec->animation_speed = Clamp(grf_load_byte(&buf), 2, 16);
				break;

			case 0x1C: // Class of the building type
				housespec->class_id = AllocateHouseClassID(grf_load_byte(&buf), _cur_grffile->grfid);
				break;

			case 0x1D: // Callback flags 2
				housespec->callback_mask |= (grf_load_byte(&buf) << 8);
				break;

			case 0x1E: { // Accepted cargo types
				uint32 cargotypes = grf_load_dword(&buf);

				/* Check if the cargo types should not be changed */
				if (cargotypes == 0xFFFFFFFF) break;

				for (uint j = 0; j < 3; j++) {
					/* Get the cargo number from the 'list' */
					uint8 cargo_part = GB(cargotypes, 8 * j, 8);
					CargoID cargo = GetCargoTranslation(cargo_part, _cur_grffile);

					if (cargo == CT_INVALID) {
						/* Disable acceptance of invalid cargo type */
						housespec->cargo_acceptance[j] = 0;
					} else {
						housespec->accepts_cargo[j] = cargo;
					}
				}
			} break;

			case 0x1F: // Minimum life span
				housespec->minimum_life = grf_load_byte(&buf);
				break;

			case 0x20: { // @todo Cargo acceptance watch list
				byte count = grf_load_byte(&buf);
				for (byte j = 0; j < count; j++) grf_load_byte(&buf);
				ret = true;
			} break;

			case 0x21: // long introduction year
				housespec->min_year = grf_load_word(&buf);
				break;

			case 0x22: // long maximum year
				housespec->max_year = grf_load_word(&buf);
				break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

static bool GlobalVarChangeInfo(uint gvid, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	for (int i = 0; i < numinfo; i++) {
		switch (prop) {
			case 0x08: { // Cost base factor
				byte factor = grf_load_byte(&buf);
				uint price = gvid + i;

				if (price < NUM_PRICES) {
					SetPriceBaseMultiplier(price, factor);
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Price %d out of range, ignoring", price);
				}
			} break;

			case 0x09: // Cargo translation table
				/* This is loaded during the reservation stage, so just skip it here. */
				/* Each entry is 4 bytes. */
				buf += 4;
				break;

			case 0x0A: { // Currency display names
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				StringID newone = GetGRFStringID(_cur_grffile->grfid, grf_load_word(&buf));

				if ((newone != STR_UNDEFINED) && (curidx < NUM_CURRENCY)) {
					_currency_specs[curidx].name = newone;
				}
			} break;

			case 0x0B: { // Currency multipliers
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				uint32 rate = grf_load_dword(&buf);

				if (curidx < NUM_CURRENCY) {
					/* TTDPatch uses a multiple of 1000 for its conversion calculations,
					 * which OTTD does not. For this reason, divide grf value by 1000,
					 * to be compatible */
					_currency_specs[curidx].rate = rate / 1000;
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Currency multipliers %d out of range, ignoring", curidx);
				}
			} break;

			case 0x0C: { // Currency options
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				uint16 options = grf_load_word(&buf);

				if (curidx < NUM_CURRENCY) {
					_currency_specs[curidx].separator = GB(options, 0, 8);
					/* By specifying only one bit, we prevent errors,
					 * since newgrf specs said that only 0 and 1 can be set for symbol_pos */
					_currency_specs[curidx].symbol_pos = GB(options, 8, 1);
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Currency option %d out of range, ignoring", curidx);
				}
			} break;

			case 0x0D: { // Currency prefix symbol
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				uint32 tempfix = grf_load_dword(&buf);

				if (curidx < NUM_CURRENCY) {
					memcpy(_currency_specs[curidx].prefix, &tempfix, 4);
					_currency_specs[curidx].prefix[4] = 0;
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Currency symbol %d out of range, ignoring", curidx);
				}
			} break;

			case 0x0E: { // Currency suffix symbol
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				uint32 tempfix = grf_load_dword(&buf);

				if (curidx < NUM_CURRENCY) {
					memcpy(&_currency_specs[curidx].suffix, &tempfix, 4);
					_currency_specs[curidx].suffix[4] = 0;
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Currency symbol %d out of range, ignoring", curidx);
				}
			} break;

			case 0x0F: { //  Euro introduction dates
				uint curidx = GetNewgrfCurrencyIdConverted(gvid + i);
				Year year_euro = grf_load_word(&buf);

				if (curidx < NUM_CURRENCY) {
					_currency_specs[curidx].to_euro = year_euro;
				} else {
					grfmsg(1, "GlobalVarChangeInfo: Euro intro date %d out of range, ignoring", curidx);
				}
			} break;

			case 0x10: // Snow line height table
				if (numinfo > 1 || IsSnowLineSet()) {
					grfmsg(1, "GlobalVarChangeInfo: The snowline can only be set once (%d)", numinfo);
				} else if (len < SNOW_LINE_MONTHS * SNOW_LINE_DAYS) {
					grfmsg(1, "GlobalVarChangeInfo: Not enough entries set in the snowline table (%d)", len);
				} else {
					byte table[SNOW_LINE_MONTHS][SNOW_LINE_DAYS];

					for (uint i = 0; i < SNOW_LINE_MONTHS; i++) {
						for (uint j = 0; j < SNOW_LINE_DAYS; j++) {
							table[i][j] = grf_load_byte(&buf);
						}
					}
					SetSnowLine(table);
				}
				break;

			case 0x11: // GRF match for engine allocation
				/* This is loaded during the reservation stage, so just skip it here. */
				/* Each entry is 8 bytes. */
				buf += 8;
				break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

static bool CargoChangeInfo(uint cid, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	if (cid + numinfo > NUM_CARGO) {
		grfmsg(2, "CargoChangeInfo: Cargo type %d out of range (max %d)", cid + numinfo, NUM_CARGO - 1);
		return false;
	}

	for (int i = 0; i < numinfo; i++) {
		CargoSpec *cs = &_cargo[cid + i];

		switch (prop) {
			case 0x08: /* Bit number of cargo */
				cs->bitnum = grf_load_byte(&buf);
				if (cs->IsValid()) {
					cs->grffile = _cur_grffile;
					SetBit(_cargo_mask, cid + i);
				} else {
					ClrBit(_cargo_mask, cid + i);
				}
				break;

			case 0x09: /* String ID for cargo type name */
				cs->name = grf_load_word(&buf);
				_string_to_grf_mapping[&cs->name] = _cur_grffile->grfid;
				break;

			case 0x0A: /* String for 1 unit of cargo */
				cs->name_single = grf_load_word(&buf);
				_string_to_grf_mapping[&cs->name_single] = _cur_grffile->grfid;
				break;

			case 0x0B:
				/* String for units of cargo. This is different in OpenTTD to TTDPatch
				 * (e.g. 10 tonnes of coal) */
				cs->units_volume = grf_load_word(&buf);
				_string_to_grf_mapping[&cs->units_volume] = _cur_grffile->grfid;
				break;

			case 0x0C: /* String for quantity of cargo (e.g. 10 tonnes of coal) */
				cs->quantifier = grf_load_word(&buf);
				_string_to_grf_mapping[&cs->quantifier] = _cur_grffile->grfid;
				break;

			case 0x0D: /* String for two letter cargo abbreviation */
				cs->abbrev = grf_load_word(&buf);
				_string_to_grf_mapping[&cs->abbrev] = _cur_grffile->grfid;
				break;

			case 0x0E: /* Sprite ID for cargo icon */
				cs->sprite = grf_load_word(&buf);
				break;

			case 0x0F: /* Weight of one unit of cargo */
				cs->weight = grf_load_byte(&buf);
				break;

			case 0x10: /* Used for payment calculation */
				cs->transit_days[0] = grf_load_byte(&buf);
				break;

			case 0x11: /* Used for payment calculation */
				cs->transit_days[1] = grf_load_byte(&buf);
				break;

			case 0x12: /* Base cargo price */
				cs->initial_payment = grf_load_dword(&buf);
				break;

			case 0x13: /* Colour for station rating bars */
				cs->rating_colour = MapDOSColour(grf_load_byte(&buf));
				break;

			case 0x14: /* Colour for cargo graph */
				cs->legend_colour = MapDOSColour(grf_load_byte(&buf));
				break;

			case 0x15: /* Freight status */
				cs->is_freight = (grf_load_byte(&buf) != 0);
				break;

			case 0x16: /* Cargo classes */
				cs->classes = grf_load_word(&buf);
				break;

			case 0x17: /* Cargo label */
				cs->label = grf_load_dword(&buf);
				cs->label = BSWAP32(cs->label);
				break;

			case 0x18: { /* Town growth substitute type */
				uint8 substitute_type = grf_load_byte(&buf);

				switch (substitute_type) {
					case 0x00: cs->town_effect = TE_PASSENGERS; break;
					case 0x02: cs->town_effect = TE_MAIL; break;
					case 0x05: cs->town_effect = TE_GOODS; break;
					case 0x09: cs->town_effect = TE_WATER; break;
					case 0x0B: cs->town_effect = TE_FOOD; break;
					default:
						grfmsg(1, "CargoChangeInfo: Unknown town growth substitute value %d, setting to none.", substitute_type);
					case 0xFF: cs->town_effect = TE_NONE; break;
				}
			} break;

			case 0x19: /* Town growth coefficient */
				cs->multipliertowngrowth = grf_load_word(&buf);
				break;

			case 0x1A: /* Bitmask of callbacks to use */
				cs->callback_mask = grf_load_byte(&buf);
				break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}


static bool SoundEffectChangeInfo(uint sid, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	if (_cur_grffile->sound_offset == 0) {
		grfmsg(1, "SoundEffectChangeInfo: No effects defined, skipping");
		return false;
	}

	for (int i = 0; i < numinfo; i++) {
		uint sound = sid + i + _cur_grffile->sound_offset - GetNumOriginalSounds();

		if (sound >= GetNumSounds()) {
			grfmsg(1, "SoundEffectChangeInfo: Sound %d not defined (max %d)", sound, GetNumSounds());
			continue;
		}

		switch (prop) {
			case 0x08: // Relative volume
				GetSound(sound)->volume = grf_load_byte(&buf);
				break;

			case 0x09: // Priority
				GetSound(sound)->priority = grf_load_byte(&buf);
				break;

			case 0x0A: { // Override old sound
				uint orig_sound = grf_load_byte(&buf);

				if (orig_sound >= GetNumSounds()) {
					grfmsg(1, "SoundEffectChangeInfo: Original sound %d not defined (max %d)", orig_sound, GetNumSounds());
				} else {
					FileEntry *newfe = GetSound(sound);
					FileEntry *oldfe = GetSound(orig_sound);

					/* Literally copy the data of the new sound over the original */
					*oldfe = *newfe;
				}
			} break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

static bool IndustrytilesChangeInfo(uint indtid, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	if (indtid + numinfo > NUM_INDUSTRYTILES) {
		grfmsg(1, "IndustryTilesChangeInfo: Too many industry tiles loaded (%u), max (%u). Ignoring.", indtid + numinfo, NUM_INDUSTRYTILES);
		return false;
	}

	/* Allocate industry tile specs if they haven't been allocated already. */
	if (_cur_grffile->indtspec == NULL) {
		_cur_grffile->indtspec = CallocT<IndustryTileSpec*>(NUM_INDUSTRYTILES);
	}

	for (int i = 0; i < numinfo; i++) {
		IndustryTileSpec *tsp = _cur_grffile->indtspec[indtid + i];

		if (prop != 0x08 && tsp == NULL) {
			grfmsg(2, "IndustryTilesChangeInfo: Attempt to modify undefined industry tile %u. Ignoring.", indtid + i);
			continue;
		}

		switch (prop) {
			case 0x08: { // Substitute industry tile type
				IndustryTileSpec **tilespec = &_cur_grffile->indtspec[indtid + i];
				byte subs_id = grf_load_byte(&buf);

				if (subs_id >= NEW_INDUSTRYTILEOFFSET) {
					/* The substitute id must be one of the original industry tile. */
					grfmsg(2, "IndustryTilesChangeInfo: Attempt to use new industry tile %u as substitute industry tile for %u. Ignoring.", subs_id, indtid + i);
					return false;
				}

				/* Allocate space for this industry. */
				if (*tilespec == NULL) {
					int tempid;
					*tilespec = CallocT<IndustryTileSpec>(1);
					tsp = *tilespec;

					memcpy(tsp, &_industry_tile_specs[subs_id], sizeof(_industry_tile_specs[subs_id]));
					tsp->enabled = true;

					/* A copied tile should not have the animation infos copied too.
					 * The anim_state should be left untouched, though
					 * It is up to the author to animate them himself */
					tsp->anim_production = INDUSTRYTILE_NOANIM;
					tsp->anim_next = INDUSTRYTILE_NOANIM;

					tsp->grf_prop.local_id = indtid + i;
					tsp->grf_prop.subst_id = subs_id;
					tsp->grf_prop.grffile = _cur_grffile;
					tempid = _industile_mngr.AddEntityID(indtid + i, _cur_grffile->grfid, subs_id); // pre-reserve the tile slot
				}
			} break;

			case 0x09: { // Industry tile override
				byte ovrid = grf_load_byte(&buf);

				/* The industry being overridden must be an original industry. */
				if (ovrid >= NEW_INDUSTRYTILEOFFSET) {
					grfmsg(2, "IndustryTilesChangeInfo: Attempt to override new industry tile %u with industry tile id %u. Ignoring.", ovrid, indtid + i);
					return false;
				}

				_industile_mngr.Add(indtid + i, _cur_grffile->grfid, ovrid);
			} break;

			case 0x0A: // Tile acceptance
			case 0x0B:
			case 0x0C: {
				uint16 acctp = grf_load_word(&buf);
				tsp->accepts_cargo[prop - 0x0A] = GetCargoTranslation(GB(acctp, 0, 8), _cur_grffile);
				tsp->acceptance[prop - 0x0A] = GB(acctp, 8, 8);
			} break;

			case 0x0D: // Land shape flags
				tsp->slopes_refused = (Slope)grf_load_byte(&buf);
				break;

			case 0x0E: // Callback flags
				tsp->callback_flags = grf_load_byte(&buf);
				break;

			case 0x0F: // Animation information
				tsp->animation_info = grf_load_word(&buf);
				break;

			case 0x10: // Animation speed
				tsp->animation_speed = grf_load_byte(&buf);
				break;

			case 0x11: // Triggers for callback 25
				tsp->animation_triggers = grf_load_byte(&buf);
				break;

			case 0x12: // Special flags
				tsp->animation_special_flags = grf_load_byte(&buf);
				break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

static bool IndustriesChangeInfo(uint indid, int numinfo, int prop, byte **bufp, int len)
{
	byte *buf = *bufp;
	bool ret = false;

	if (indid + numinfo > NUM_INDUSTRYTYPES) {
		grfmsg(1, "IndustriesChangeInfo: Too many industries loaded (%u), max (%u). Ignoring.", indid + numinfo, NUM_INDUSTRYTYPES);
		return false;
	}

	grfmsg(1, "IndustriesChangeInfo: newid %u", indid);

	/* Allocate industry specs if they haven't been allocated already. */
	if (_cur_grffile->industryspec == NULL) {
		_cur_grffile->industryspec = CallocT<IndustrySpec*>(NUM_INDUSTRYTYPES);
	}

	for (int i = 0; i < numinfo; i++) {
		IndustrySpec *indsp = _cur_grffile->industryspec[indid + i];

		if (prop != 0x08 && indsp == NULL) {
			grfmsg(2, "IndustriesChangeInfo: Attempt to modify undefined industry %u. Ignoring.", indid + i);
			continue;
		}

		switch (prop) {
			case 0x08: { // Substitute industry type
				IndustrySpec **indspec = &_cur_grffile->industryspec[indid + i];
				byte subs_id = grf_load_byte(&buf);

				if (subs_id == 0xFF) {
					/* Instead of defining a new industry, a substitute industry id
					 * of 0xFF disables the old industry with the current id. */
					_industry_specs[indid + i].enabled = false;
					continue;
				} else if (subs_id >= NEW_INDUSTRYOFFSET) {
					/* The substitute id must be one of the original industry. */
					grfmsg(2, "_industry_specs: Attempt to use new industry %u as substitute industry for %u. Ignoring.", subs_id, indid + i);
					return false;
				}

				/* Allocate space for this industry.
				 * Only need to do it once. If ever it is called again, it should not
				 * do anything */
				if (*indspec == NULL) {
					*indspec = CallocT<IndustrySpec>(1);
					indsp = *indspec;

					memcpy(indsp, &_origin_industry_specs[subs_id], sizeof(_industry_specs[subs_id]));
					indsp->enabled = true;
					indsp->grf_prop.local_id = indid + i;
					indsp->grf_prop.subst_id = subs_id;
					indsp->grf_prop.grffile = _cur_grffile;
					/* If the grf industry needs to check its surounding upon creation, it should
					 * rely on callbacks, not on the original placement functions */
					indsp->check_proc = CHECK_NOTHING;
				}
			} break;

			case 0x09: { // Industry type override
				byte ovrid = grf_load_byte(&buf);

				/* The industry being overridden must be an original industry. */
				if (ovrid >= NEW_INDUSTRYOFFSET) {
					grfmsg(2, "IndustriesChangeInfo: Attempt to override new industry %u with industry id %u. Ignoring.", ovrid, indid + i);
					return false;
				}
				indsp->grf_prop.override = ovrid;
				_industry_mngr.Add(indid + i, _cur_grffile->grfid, ovrid);
			} break;

			case 0x0A: { // Set industry layout(s)
				indsp->num_table = grf_load_byte(&buf); // Number of layaouts
				uint32 defsize = grf_load_dword(&buf);  // Total size of the definition
				IndustryTileTable **tile_table = CallocT<IndustryTileTable*>(indsp->num_table); // Table with tiles to compose an industry
				IndustryTileTable *itt = CallocT<IndustryTileTable>(defsize); // Temporary array to read the tile layouts from the GRF
				int size;
				IndustryTileTable *copy_from;

				for (byte j = 0; j < indsp->num_table; j++) {
					for (int k = 0;; k++) {
						itt[k].ti.x = grf_load_byte(&buf); // Offsets from northermost tile

						if (itt[k].ti.x == 0xFE && k == 0) {
							/* This means we have to borrow the layout from an old industry */
							IndustryType type = grf_load_byte(&buf);  //industry holding required layout
							byte laynbr = grf_load_byte(&buf);        //layout number to borrow

							copy_from = (IndustryTileTable*)_origin_industry_specs[type].table[laynbr];
							for (size = 1;; size++) {
								if (copy_from[size - 1].ti.x == -0x80 && copy_from[size - 1].ti.y == 0) break;
							}
							break;
						}

						itt[k].ti.y = grf_load_byte(&buf); // Or table definition finalisation

						if (itt[k].ti.x == 0 && itt[k].ti.y == 0x80) {
							/*  Not the same terminator.  The one we are using is rather
							 x= -80, y = x .  So, adjust it. */
							itt[k].ti.x = -0x80;
							itt[k].ti.y =  0;
							itt[k].gfx  =  0;

							size = k + 1;
							copy_from = itt;
							break;
						}

						itt[k].gfx = grf_load_byte(&buf);

						if (itt[k].gfx == 0xFE) {
							/* Use a new tile from this GRF */
							int local_tile_id = grf_load_word(&buf);

							/* Read the ID from the _industile_mngr. */
							int tempid = _industile_mngr.GetID(local_tile_id, _cur_grffile->grfid);

							if (tempid == INVALID_INDUSTRYTILE) {
								grfmsg(2, "IndustriesChangeInfo: Attempt to use industry tile %u with industry id %u, not yet defined. Ignoring.", local_tile_id, indid);
							} else {
								/* Declared as been valid, can be used */
								itt[k].gfx = tempid;
								size = k + 1;
								copy_from = itt;
							}
						} else if (itt[k].gfx == 0xFF) {
							itt[k].ti.x = (int8)GB(itt[k].ti.x, 0, 8);
							itt[k].ti.y = (int8)GB(itt[k].ti.y, 0, 8);
						}
					}
					tile_table[j] = CallocT<IndustryTileTable>(size);
					memcpy(tile_table[j], copy_from, sizeof(*copy_from) * size);
				}
				/* Install final layout construction in the industry spec */
				indsp->table = tile_table;
				SetBit(indsp->cleanup_flag, 1);
				free(itt);
			} break;

			case 0x0B: // Industry production flags
				indsp->life_type = (IndustryLifeType)grf_load_byte(&buf);
				break;

			case 0x0C: // Industry closure message
				indsp->closure_text = grf_load_word(&buf);
				_string_to_grf_mapping[&indsp->closure_text] = _cur_grffile->grfid;
				break;

			case 0x0D: // Production increase message
				indsp->production_up_text = grf_load_word(&buf);
				_string_to_grf_mapping[&indsp->production_up_text] = _cur_grffile->grfid;
				break;

			case 0x0E: // Production decrease message
				indsp->production_down_text = grf_load_word(&buf);
				_string_to_grf_mapping[&indsp->production_down_text] = _cur_grffile->grfid;
				break;

			case 0x0F: // Fund cost multiplier
				indsp->cost_multiplier = grf_load_byte(&buf);
				break;

			case 0x10: // Production cargo types
				for (byte j = 0; j < 2; j++) {
					indsp->produced_cargo[j] = GetCargoTranslation(grf_load_byte(&buf), _cur_grffile);
				}
				break;

			case 0x11: // Acceptance cargo types
				for (byte j = 0; j < 3; j++) {
					indsp->accepts_cargo[j] = GetCargoTranslation(grf_load_byte(&buf), _cur_grffile);
				}
				grf_load_byte(&buf); // Unnused, eat it up
				break;

			case 0x12: // Production multipliers
			case 0x13:
				indsp->production_rate[prop - 0x12] = grf_load_byte(&buf);
				break;

			case 0x14: // Minimal amount of cargo distributed
				indsp->minimal_cargo = grf_load_byte(&buf);
				break;

			case 0x15: { // Random sound effects
				indsp->number_of_sounds = grf_load_byte(&buf);
				uint8 *sounds = MallocT<uint8>(indsp->number_of_sounds);

				for (uint8 j = 0; j < indsp->number_of_sounds; j++) sounds[j] = grf_load_byte(&buf);
				indsp->random_sounds = sounds;
				SetBit(indsp->cleanup_flag, 0);
			} break;

			case 0x16: // Conflicting industry types
				for (byte j = 0; j < 3; j++) indsp->conflicting[j] = grf_load_byte(&buf);
				break;

			case 0x17: // Probability in random game
				indsp->appear_creation[_settings_game.game_creation.landscape] = grf_load_byte(&buf);
				break;

			case 0x18: // Probability during gameplay
				indsp->appear_ingame[_settings_game.game_creation.landscape] = grf_load_byte(&buf);
				break;

			case 0x19: // Map color
				indsp->map_colour = MapDOSColour(grf_load_byte(&buf));
				break;

			case 0x1A: // Special industry flags to define special behavior
				indsp->behaviour = (IndustryBehaviour)grf_load_dword(&buf);
				break;

			case 0x1B: // New industry text ID
				indsp->new_industry_text = grf_load_word(&buf);
				_string_to_grf_mapping[&indsp->new_industry_text] = _cur_grffile->grfid;
				break;

			case 0x1C: // Input cargo multipliers for the three input cargo types
			case 0x1D:
			case 0x1E: {
					uint32 multiples = grf_load_dword(&buf);
					indsp->input_cargo_multiplier[prop - 0x1C][0] = GB(multiples, 0, 15);
					indsp->input_cargo_multiplier[prop - 0x1C][1] = GB(multiples, 15, 15);
				} break;

			case 0x1F: // Industry name
				indsp->name = grf_load_word(&buf);
				_string_to_grf_mapping[&indsp->name] = _cur_grffile->grfid;
				break;

			case 0x20: // Prospecting success chance
				indsp->prospecting_chance = grf_load_dword(&buf);
				break;

			case 0x21:   // Callback flags
			case 0x22: { // Callback additional flags
				byte aflag = grf_load_byte(&buf);
				SB(indsp->callback_flags, (prop - 0x21) * 8, 8, aflag);
			} break;

			case 0x23: // removal cost multiplier
				indsp->removal_cost_multiplier = grf_load_dword(&buf);
				break;

			case 0x24: // name for nearby station
				indsp->station_name = grf_load_word(&buf);
				_string_to_grf_mapping[&indsp->station_name] = _cur_grffile->grfid;
				break;

			default:
				ret = true;
				break;
		}
	}

	*bufp = buf;
	return ret;
}

/* Action 0x00 */
static void FeatureChangeInfo(byte *buf, size_t len)
{
	byte *bufend = buf + len;

	/* <00> <feature> <num-props> <num-info> <id> (<property <new-info>)...
	 *
	 * B feature       0, 1, 2 or 3 for trains, road vehicles, ships or planes
	 *                 4 for defining new train station sets
	 * B num-props     how many properties to change per vehicle/station
	 * B num-info      how many vehicles/stations to change
	 * E id            ID of first vehicle/station to change, if num-info is
	 *                 greater than one, this one and the following
	 *                 vehicles/stations will be changed
	 * B property      what property to change, depends on the feature
	 * V new-info      new bytes of info (variable size; depends on properties) */
	/* TODO: Bridges, town houses. */

	static const VCI_Handler handler[] = {
		/* GSF_TRAIN */        RailVehicleChangeInfo,
		/* GSF_ROAD */         RoadVehicleChangeInfo,
		/* GSF_SHIP */         ShipVehicleChangeInfo,
		/* GSF_AIRCRAFT */     AircraftVehicleChangeInfo,
		/* GSF_STATION */      StationChangeInfo,
		/* GSF_CANAL */        CanalChangeInfo,
		/* GSF_BRIDGE */       BridgeChangeInfo,
		/* GSF_TOWNHOUSE */    TownHouseChangeInfo,
		/* GSF_GLOBALVAR */    GlobalVarChangeInfo,
		/* GSF_INDUSTRYTILES */IndustrytilesChangeInfo,
		/* GSF_INDUSTRIES */   IndustriesChangeInfo,
		/* GSF_CARGOS */       NULL, /* Cargo is handled during reservation */
		/* GSF_SOUNDFX */      SoundEffectChangeInfo,
	};

	if (!check_length(len, 6, "FeatureChangeInfo")) return;
	buf++;
	uint8 feature  = grf_load_byte(&buf);
	uint8 numprops = grf_load_byte(&buf);
	uint numinfo  = grf_load_byte(&buf);
	uint engine   = grf_load_extended(&buf);

	grfmsg(6, "FeatureChangeInfo: feature %d, %d properties, to apply to %d+%d",
	               feature, numprops, engine, numinfo);

	if (feature >= lengthof(handler) || handler[feature] == NULL) {
		grfmsg(1, "FeatureChangeInfo: Unsupported feature %d, skipping", feature);
		return;
	}

	while (numprops-- && buf < bufend) {
		uint8 prop = grf_load_byte(&buf);
		bool ignoring = false;

		switch (feature) {
			case GSF_TRAIN:
			case GSF_ROAD:
			case GSF_SHIP:
			case GSF_AIRCRAFT: {
				bool handled = true;

				for (uint i = 0; i < numinfo; i++) {
					Engine *e = GetNewEngine(_cur_grffile, (VehicleType)feature, engine + i);
					EngineInfo *ei = &e->info;

					/* Common properties for vehicles */
					switch (prop) {
						case 0x00: // Introduction date
							ei->base_intro = grf_load_word(&buf) + DAYS_TILL_ORIGINAL_BASE_YEAR;
							break;

						case 0x02: // Decay speed
							ei->decay_speed = grf_load_byte(&buf);
							break;

						case 0x03: // Vehicle life
							ei->lifelength = grf_load_byte(&buf);
							break;

						case 0x04: // Model life
							ei->base_life = grf_load_byte(&buf);
							break;

						case 0x06: // Climates available
							ei->climates = grf_load_byte(&buf);
							// XXX sometimes a grf wants hidden vehicles :o
							if (ei->climates == 0) ei->climates = 0x80;
							break;

						case 0x07: // Loading speed
							/* Hyronymus explained me what does
							 * this mean and insists on having a
							 * credit ;-). --pasky */
							ei->load_amount = grf_load_byte(&buf);
							break;

						default:
							handled = false;
							break;
					}
				}

				if (handled) break;
			} /* FALL THROUGH */

			default:
				if (handler[feature](engine, numinfo, prop, &buf, bufend - buf)) {
					ignoring = true;
				}
				break;
		}

		if (ignoring) grfmsg(1, "FeatureChangeInfo: Ignoring property 0x%02X of feature 0x%02X (not implemented)", prop, feature);
	}
}

/* Action 0x00 (GLS_SAFETYSCAN) */
static void SafeChangeInfo(byte *buf, size_t len)
{
	if (!check_length(len, 6, "SafeChangeInfo")) return;
	buf++;
	uint8 feature  = grf_load_byte(&buf);
	uint8 numprops = grf_load_byte(&buf);
	grf_load_byte(&buf);     // num-info
	grf_load_extended(&buf); // id

	if (feature == GSF_BRIDGE && numprops == 1) {
		uint8 prop = grf_load_byte(&buf);
		/* Bridge property 0x0D is redefinition of sprite layout tables, which
		 * is considered safe. */
		if (prop == 0x0D) return;
	}

	SetBit(_cur_grfconfig->flags, GCF_UNSAFE);

	/* Skip remainder of GRF */
	_skip_sprites = -1;
}

/* Action 0x00 (GLS_RESERVE) */
static void ReserveChangeInfo(byte *buf, size_t len)
{
	byte *bufend = buf + len;

	if (!check_length(len, 6, "ReserveChangeInfo")) return;
	buf++;
	uint8 feature  = grf_load_byte(&buf);

	if (feature != GSF_CARGOS && feature != GSF_GLOBALVAR) return;

	uint8 numprops = grf_load_byte(&buf);
	uint8 numinfo  = grf_load_byte(&buf);
	uint8 index    = grf_load_extended(&buf);

	while (numprops-- && buf < bufend) {
		uint8 prop = grf_load_byte(&buf);
		bool ignoring = false;

		switch (feature) {
			default: NOT_REACHED();
			case GSF_CARGOS:
				ignoring = CargoChangeInfo(index, numinfo, prop, &buf, bufend - buf);
				break;
			case GSF_GLOBALVAR:
				switch (prop) {
					case 0x09: // Cargo Translation Table
						if (index != 0) {
							grfmsg(1, "ReserveChangeInfo: Cargo translation table must start at zero");
							return;
						}

						free(_cur_grffile->cargo_list);
						_cur_grffile->cargo_max = numinfo;
						_cur_grffile->cargo_list = MallocT<CargoLabel>(numinfo);

						for (uint i = 0; i < numinfo; i++) {
							CargoLabel cl = grf_load_dword(&buf);
							_cur_grffile->cargo_list[i] = BSWAP32(cl);
						}
						break;

					case 0x11: // GRF match for engine allocation
						for (uint i = 0; i < numinfo; i++) {
							uint32 s = grf_load_dword(&buf);
							uint32 t = grf_load_dword(&buf);
							SetNewGRFOverride(s, t);
						}
						break;
				}
				break;
		}

		if (ignoring) grfmsg(2, "ReserveChangeInfo: Ignoring property 0x%02X (not implemented)", prop);
	}
}

/**
 * Creates a spritegroup representing a callback result
 * @param value The value that was used to represent this callback result
 * @return A spritegroup representing that callback result
 */
static const SpriteGroup* NewCallBackResultSpriteGroup(uint16 value)
{
	SpriteGroup *group = AllocateSpriteGroup();

	group->type = SGT_CALLBACK;

	/* Old style callback results have the highest byte 0xFF so signify it is a callback result
	 * New style ones only have the highest bit set (allows 15-bit results, instead of just 8) */
	if ((value >> 8) == 0xFF) {
		value &= ~0xFF00;
	} else {
		value &= ~0x8000;
	}

	group->g.callback.result = value;

	return group;
}

/**
 * Creates a spritegroup representing a sprite number result.
 * @param sprite The sprite number.
 * @param num_sprites The number of sprites per set.
 * @return A spritegroup representing the sprite number result.
 */
static const SpriteGroup* NewResultSpriteGroup(SpriteID sprite, byte num_sprites)
{
	SpriteGroup *group = AllocateSpriteGroup();
	group->type = SGT_RESULT;
	group->g.result.sprite = sprite;
	group->g.result.num_sprites = num_sprites;
	return group;
}

/* Action 0x01 */
static void NewSpriteSet(byte *buf, size_t len)
{
	/* <01> <feature> <num-sets> <num-ent>
	 *
	 * B feature       feature to define sprites for
	 *                 0, 1, 2, 3: veh-type, 4: train stations
	 * B num-sets      number of sprite sets
	 * E num-ent       how many entries per sprite set
	 *                 For vehicles, this is the number of different
	 *                         vehicle directions in each sprite set
	 *                         Set num-dirs=8, unless your sprites are symmetric.
	 *                         In that case, use num-dirs=4.
	 */

	if (!check_length(len, 4, "NewSpriteSet")) return;
	buf++;
	uint8 feature   = grf_load_byte(&buf);
	uint8 num_sets  = grf_load_byte(&buf);
	uint16 num_ents = grf_load_extended(&buf);

	_cur_grffile->spriteset_start = _cur_spriteid;
	_cur_grffile->spriteset_feature = feature;
	_cur_grffile->spriteset_numsets = num_sets;
	_cur_grffile->spriteset_numents = num_ents;

	grfmsg(7, "New sprite set at %d of type %d, consisting of %d sets with %d views each (total %d)",
		_cur_spriteid, feature, num_sets, num_ents, num_sets * num_ents
	);

	for (int i = 0; i < num_sets * num_ents; i++) {
		_nfo_line++;
		LoadNextSprite(_cur_spriteid++, _file_index, _nfo_line);
	}
}

/* Action 0x01 (SKIP) */
static void SkipAct1(byte *buf, size_t len)
{
	if (!check_length(len, 4, "SkipAct1")) return;
	buf++;
	grf_load_byte(&buf);
	uint8 num_sets  = grf_load_byte(&buf);
	uint16 num_ents = grf_load_extended(&buf);

	_skip_sprites = num_sets * num_ents;

	grfmsg(3, "SkipAct1: Skipping %d sprites", _skip_sprites);
}

/* Helper function to either create a callback or link to a previously
 * defined spritegroup. */
static const SpriteGroup* GetGroupFromGroupID(byte setid, byte type, uint16 groupid)
{
	if (HasBit(groupid, 15)) return NewCallBackResultSpriteGroup(groupid);

	if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) {
		grfmsg(1, "GetGroupFromGroupID(0x%02X:0x%02X): Groupid 0x%04X does not exist, leaving empty", setid, type, groupid);
		return NULL;
	}

	return _cur_grffile->spritegroups[groupid];
}

/* Helper function to either create a callback or a result sprite group. */
static const SpriteGroup* CreateGroupFromGroupID(byte feature, byte setid, byte type, uint16 spriteid, uint16 num_sprites)
{
	if (HasBit(spriteid, 15)) return NewCallBackResultSpriteGroup(spriteid);

	if (spriteid >= _cur_grffile->spriteset_numsets) {
		grfmsg(1, "CreateGroupFromGroupID(0x%02X:0x%02X): Sprite set %u invalid, max %u", setid, type, spriteid, _cur_grffile->spriteset_numsets);
		return NULL;
	}

	/* Check if the sprite is within range. This can fail if the Action 0x01
	 * is skipped, as TTDPatch mandates that Action 0x02s must be processed.
	 * We don't have that rule, but must live by the Patch... */
	if (_cur_grffile->spriteset_start + spriteid * num_sprites + num_sprites > _cur_spriteid) {
		grfmsg(1, "CreateGroupFromGroupID(0x%02X:0x%02X): Real Sprite IDs 0x%04X - 0x%04X do not (all) exist (max 0x%04X), leaving empty",
				setid, type,
				_cur_grffile->spriteset_start + spriteid * num_sprites,
				_cur_grffile->spriteset_start + spriteid * num_sprites + num_sprites - 1, _cur_spriteid - 1);
		return NULL;
	}

	if (feature != _cur_grffile->spriteset_feature) {
		grfmsg(1, "CreateGroupFromGroupID(0x%02X:0x%02X): Sprite set feature 0x%02X does not match action feature 0x%02X, skipping",
				setid, type,
				_cur_grffile->spriteset_feature, feature);
		return NULL;
	}

	return NewResultSpriteGroup(_cur_grffile->spriteset_start + spriteid * num_sprites, num_sprites);
}

/* Action 0x02 */
static void NewSpriteGroup(byte *buf, size_t len)
{
	/* <02> <feature> <set-id> <type/num-entries> <feature-specific-data...>
	 *
	 * B feature       see action 1
	 * B set-id        ID of this particular definition
	 * B type/num-entries
	 *                 if 80 or greater, this is a randomized or variational
	 *                 list definition, see below
	 *                 otherwise it specifies a number of entries, the exact
	 *                 meaning depends on the feature
	 * V feature-specific-data (huge mess, don't even look it up --pasky) */
	SpriteGroup *group = NULL;
	byte *bufend = buf + len;

	if (!check_length(len, 5, "NewSpriteGroup")) return;
	buf++;

	uint8 feature = grf_load_byte(&buf);
	uint8 setid   = grf_load_byte(&buf);
	uint8 type    = grf_load_byte(&buf);

	if (setid >= _cur_grffile->spritegroups_count) {
		/* Allocate memory for new sprite group references. */
		_cur_grffile->spritegroups = ReallocT(_cur_grffile->spritegroups, setid + 1);
		/* Initialise new space to NULL */
		for (; _cur_grffile->spritegroups_count < (setid + 1); _cur_grffile->spritegroups_count++)
			_cur_grffile->spritegroups[_cur_grffile->spritegroups_count] = NULL;
	}

	switch (type) {
		/* Deterministic Sprite Group */
		case 0x81: // Self scope, byte
		case 0x82: // Parent scope, byte
		case 0x85: // Self scope, word
		case 0x86: // Parent scope, word
		case 0x89: // Self scope, dword
		case 0x8A: // Parent scope, dword
		{
			byte varadjust;
			byte varsize;

			/* Check we can load the var size parameter */
			if (!check_length(bufend - buf, 1, "NewSpriteGroup (Deterministic) (1)")) return;

			group = AllocateSpriteGroup();
			group->type = SGT_DETERMINISTIC;
			group->g.determ.var_scope = HasBit(type, 1) ? VSG_SCOPE_PARENT : VSG_SCOPE_SELF;

			switch (GB(type, 2, 2)) {
				default: NOT_REACHED();
				case 0: group->g.determ.size = DSG_SIZE_BYTE;  varsize = 1; break;
				case 1: group->g.determ.size = DSG_SIZE_WORD;  varsize = 2; break;
				case 2: group->g.determ.size = DSG_SIZE_DWORD; varsize = 4; break;
			}

			if (!check_length(bufend - buf, 5 + varsize, "NewSpriteGroup (Deterministic) (2)")) return;

			/* Loop through the var adjusts. Unfortunately we don't know how many we have
			 * from the outset, so we shall have to keep reallocing. */
			do {
				DeterministicSpriteGroupAdjust *adjust;

				if (group->g.determ.num_adjusts > 0) {
					if (!check_length(bufend - buf, 2 + varsize + 3, "NewSpriteGroup (Deterministic) (3)")) return;
				}

				group->g.determ.num_adjusts++;
				group->g.determ.adjusts = ReallocT(group->g.determ.adjusts, group->g.determ.num_adjusts);

				adjust = &group->g.determ.adjusts[group->g.determ.num_adjusts - 1];

				/* The first var adjust doesn't have an operation specified, so we set it to add. */
				adjust->operation = group->g.determ.num_adjusts == 1 ? DSGA_OP_ADD : (DeterministicSpriteGroupAdjustOperation)grf_load_byte(&buf);
				adjust->variable  = grf_load_byte(&buf);
				if (adjust->variable == 0x7E) {
					/* Link subroutine group */
					adjust->subroutine = GetGroupFromGroupID(setid, type, grf_load_byte(&buf));
				} else {
					adjust->parameter = IsInsideMM(adjust->variable, 0x60, 0x80) ? grf_load_byte(&buf) : 0;
				}

				varadjust = grf_load_byte(&buf);
				adjust->shift_num = GB(varadjust, 0, 5);
				adjust->type      = (DeterministicSpriteGroupAdjustType)GB(varadjust, 6, 2);
				adjust->and_mask  = grf_load_var(varsize, &buf);

				if (adjust->type != DSGA_TYPE_NONE) {
					adjust->add_val    = grf_load_var(varsize, &buf);
					adjust->divmod_val = grf_load_var(varsize, &buf);
				} else {
					adjust->add_val    = 0;
					adjust->divmod_val = 0;
				}

				/* Continue reading var adjusts while bit 5 is set. */
			} while (HasBit(varadjust, 5));

			group->g.determ.num_ranges = grf_load_byte(&buf);
			if (group->g.determ.num_ranges > 0) group->g.determ.ranges = CallocT<DeterministicSpriteGroupRange>(group->g.determ.num_ranges);

			if (!check_length(bufend - buf, 2 + (2 + 2 * varsize) * group->g.determ.num_ranges, "NewSpriteGroup (Deterministic)")) return;

			for (uint i = 0; i < group->g.determ.num_ranges; i++) {
				group->g.determ.ranges[i].group = GetGroupFromGroupID(setid, type, grf_load_word(&buf));
				group->g.determ.ranges[i].low   = grf_load_var(varsize, &buf);
				group->g.determ.ranges[i].high  = grf_load_var(varsize, &buf);
			}

			group->g.determ.default_group = GetGroupFromGroupID(setid, type, grf_load_word(&buf));
			break;
		}

		/* Randomized Sprite Group */
		case 0x80: // Self scope
		case 0x83: // Parent scope
		case 0x84: // Relative scope
		{
			if (!check_length(bufend - buf, HasBit(type, 2) ? 8 : 7, "NewSpriteGroup (Randomized) (1)")) return;

			group = AllocateSpriteGroup();
			group->type = SGT_RANDOMIZED;
			group->g.random.var_scope = HasBit(type, 1) ? VSG_SCOPE_PARENT : VSG_SCOPE_SELF;

			if (HasBit(type, 2)) {
				if (feature <= GSF_AIRCRAFT) group->g.random.var_scope = VSG_SCOPE_RELATIVE;
				group->g.random.count = grf_load_byte(&buf);
			}

			uint8 triggers = grf_load_byte(&buf);
			group->g.random.triggers       = GB(triggers, 0, 7);
			group->g.random.cmp_mode       = HasBit(triggers, 7) ? RSG_CMP_ALL : RSG_CMP_ANY;
			group->g.random.lowest_randbit = grf_load_byte(&buf);
			group->g.random.num_groups     = grf_load_byte(&buf);
			group->g.random.groups = CallocT<const SpriteGroup*>(group->g.random.num_groups);

			if (!check_length(bufend - buf, 2 * group->g.random.num_groups, "NewSpriteGroup (Randomized) (2)")) return;

			for (uint i = 0; i < group->g.random.num_groups; i++) {
				group->g.random.groups[i] = GetGroupFromGroupID(setid, type, grf_load_word(&buf));
			}

			break;
		}

		/* Neither a variable or randomized sprite group... must be a real group */
		default:
		{


			switch (feature) {
				case GSF_TRAIN:
				case GSF_ROAD:
				case GSF_SHIP:
				case GSF_AIRCRAFT:
				case GSF_STATION:
				case GSF_CANAL:
				case GSF_CARGOS:
				{
					byte sprites     = _cur_grffile->spriteset_numents;
					byte num_loaded  = type;
					byte num_loading = grf_load_byte(&buf);

					if (_cur_grffile->spriteset_start == 0) {
						grfmsg(0, "NewSpriteGroup: No sprite set to work on! Skipping");
						return;
					}

					if (!check_length(bufend - buf, 2 * num_loaded + 2 * num_loading, "NewSpriteGroup (Real) (1)")) return;

					group = AllocateSpriteGroup();
					group->type = SGT_REAL;

					group->g.real.num_loaded  = num_loaded;
					group->g.real.num_loading = num_loading;
					if (num_loaded  > 0) group->g.real.loaded = CallocT<const SpriteGroup*>(num_loaded);
					if (num_loading > 0) group->g.real.loading = CallocT<const SpriteGroup*>(num_loading);

					grfmsg(6, "NewSpriteGroup: New SpriteGroup 0x%02X, %u views, %u loaded, %u loading",
							setid, sprites, num_loaded, num_loading);

					for (uint i = 0; i < num_loaded; i++) {
						uint16 spriteid = grf_load_word(&buf);
						group->g.real.loaded[i] = CreateGroupFromGroupID(feature, setid, type, spriteid, sprites);
						grfmsg(8, "NewSpriteGroup: + rg->loaded[%i]  = subset %u", i, spriteid);
					}

					for (uint i = 0; i < num_loading; i++) {
						uint16 spriteid = grf_load_word(&buf);
						group->g.real.loading[i] = CreateGroupFromGroupID(feature, setid, type, spriteid, sprites);
						grfmsg(8, "NewSpriteGroup: + rg->loading[%i] = subset %u", i, spriteid);
					}

					break;
				}

				case GSF_TOWNHOUSE:
				case GSF_INDUSTRYTILES: {
					byte sprites     = _cur_grffile->spriteset_numents;
					byte num_sprites = max((uint8)1, type);
					uint i;

					group = AllocateSpriteGroup();
					group->type = SGT_TILELAYOUT;
					group->g.layout.num_sprites = sprites;
					group->g.layout.dts = CallocT<DrawTileSprites>(1);

					/* Groundsprite */
					group->g.layout.dts->ground.sprite = grf_load_word(&buf);
					group->g.layout.dts->ground.pal    = grf_load_word(&buf);

					/* Remap transparent/colour modifier bits */
					MapSpriteMappingRecolour(&group->g.layout.dts->ground);

					if (HasBit(group->g.layout.dts->ground.pal, 15)) {
						/* Bit 31 set means this is a custom sprite, so rewrite it to the
						 * last spriteset defined. */
						SpriteID sprite = _cur_grffile->spriteset_start + GB(group->g.layout.dts->ground.sprite, 0, 14) * sprites;
						SB(group->g.layout.dts->ground.sprite, 0, SPRITE_WIDTH, sprite);
						ClrBit(group->g.layout.dts->ground.pal, 15);
					}

					group->g.layout.dts->seq = CallocT<DrawTileSeqStruct>(num_sprites + 1);

					for (i = 0; i < num_sprites; i++) {
						DrawTileSeqStruct *seq = (DrawTileSeqStruct*)&group->g.layout.dts->seq[i];

						seq->image.sprite = grf_load_word(&buf);
						seq->image.pal   = grf_load_word(&buf);
						seq->delta_x = grf_load_byte(&buf);
						seq->delta_y = grf_load_byte(&buf);

						MapSpriteMappingRecolour(&seq->image);

						if (HasBit(seq->image.pal, 15)) {
							/* Bit 31 set means this is a custom sprite, so rewrite it to the
							 * last spriteset defined. */
							SpriteID sprite = _cur_grffile->spriteset_start + GB(seq->image.sprite, 0, 14) * sprites;
							SB(seq->image.sprite, 0, SPRITE_WIDTH, sprite);
							ClrBit(seq->image.pal, 15);
						}

						if (type > 0) {
							seq->delta_z = grf_load_byte(&buf);
							if ((byte)seq->delta_z == 0x80) continue;
						}

						seq->size_x = grf_load_byte(&buf);
						seq->size_y = grf_load_byte(&buf);
						seq->size_z = grf_load_byte(&buf);
					}

					/* Set the terminator value. */
					((DrawTileSeqStruct*)group->g.layout.dts->seq)[i].delta_x = (byte)0x80;

					break;
				}

				case GSF_INDUSTRIES: {
					if (type > 1) {
						grfmsg(1, "NewSpriteGroup: Unsupported industry production version %d, skipping", type);
						break;
					}

					group = AllocateSpriteGroup();
					group->type = SGT_INDUSTRY_PRODUCTION;
					group->g.indprod.version = type;
					if (type == 0) {
						for (uint i = 0; i < 3; i++) {
							group->g.indprod.substract_input[i] = grf_load_word(&buf);
						}
						for (uint i = 0; i < 2; i++) {
							group->g.indprod.add_output[i] = grf_load_word(&buf);
						}
						group->g.indprod.again = grf_load_byte(&buf);
					} else {
						for (uint i = 0; i < 3; i++) {
							group->g.indprod.substract_input[i] = grf_load_byte(&buf);
						}
						for (uint i = 0; i < 2; i++) {
							group->g.indprod.add_output[i] = grf_load_byte(&buf);
						}
						group->g.indprod.again = grf_load_byte(&buf);
					}
					break;
				}

				/* Loading of Tile Layout and Production Callback groups would happen here */
				default: grfmsg(1, "NewSpriteGroup: Unsupported feature %d, skipping", feature);
			}
		}
	}

	_cur_grffile->spritegroups[setid] = group;
}

static CargoID TranslateCargo(uint8 feature, uint8 ctype)
{
	/* Special cargo types for purchase list and stations */
	if (feature == GSF_STATION && ctype == 0xFE) return CT_DEFAULT_NA;
	if (ctype == 0xFF) return CT_PURCHASE;

	if (_cur_grffile->cargo_max == 0) {
		/* No cargo table, so use bitnum values */
		if (ctype >= 32) {
			grfmsg(1, "TranslateCargo: Cargo bitnum %d out of range (max 31), skipping.", ctype);
			return CT_INVALID;
		}

		for (CargoID c = 0; c < NUM_CARGO; c++) {
			const CargoSpec *cs = GetCargo(c);
			if (!cs->IsValid()) continue;

			if (cs->bitnum == ctype) {
				grfmsg(6, "TranslateCargo: Cargo bitnum %d mapped to cargo type %d.", ctype, c);
				return c;
			}
		}

		grfmsg(5, "TranslateCargo: Cargo bitnum %d not available in this climate, skipping.", ctype);
		return CT_INVALID;
	}

	/* Check if the cargo type is out of bounds of the cargo translation table */
	if (ctype >= _cur_grffile->cargo_max) {
		grfmsg(1, "TranslateCargo: Cargo type %d out of range (max %d), skipping.", ctype, _cur_grffile->cargo_max - 1);
		return CT_INVALID;
	}

	/* Look up the cargo label from the translation table */
	CargoLabel cl = _cur_grffile->cargo_list[ctype];
	if (cl == 0) {
		grfmsg(5, "TranslateCargo: Cargo type %d not available in this climate, skipping.", ctype);
		return CT_INVALID;
	}

	ctype = GetCargoIDByLabel(cl);
	if (ctype == CT_INVALID) {
		grfmsg(5, "TranslateCargo: Cargo '%c%c%c%c' unsupported, skipping.", GB(cl, 24, 8), GB(cl, 16, 8), GB(cl, 8, 8), GB(cl, 0, 8));
		return CT_INVALID;
	}

	grfmsg(6, "TranslateCargo: Cargo '%c%c%c%c' mapped to cargo type %d.", GB(cl, 24, 8), GB(cl, 16, 8), GB(cl, 8, 8), GB(cl, 0, 8), ctype);
	return ctype;
}


static bool IsValidGroupID(uint16 groupid, const char *function)
{
	if (groupid >= _cur_grffile->spritegroups_count || _cur_grffile->spritegroups[groupid] == NULL) {
		grfmsg(1, "%s: Spriteset 0x%04X out of range (maximum 0x%02X) or empty, skipping.", function, groupid, _cur_grffile->spritegroups_count - 1);
		return false;
	}

	return true;
}

static void VehicleMapSpriteGroup(byte *buf, byte feature, uint8 idcount)
{
	static EngineID *last_engines;
	static uint last_engines_count;
	bool wagover = false;

	/* Test for 'wagon override' flag */
	if (HasBit(idcount, 7)) {
		wagover = true;
		/* Strip off the flag */
		idcount = GB(idcount, 0, 7);

		if (last_engines_count == 0) {
			grfmsg(0, "VehicleMapSpriteGroup: WagonOverride: No engine to do override with");
			return;
		}

		grfmsg(6, "VehicleMapSpriteGroup: WagonOverride: %u engines, %u wagons",
				last_engines_count, idcount);
	} else {
		if (last_engines_count != idcount) {
			last_engines = ReallocT(last_engines, idcount);
			last_engines_count = idcount;
		}
	}

	EngineID *engines = AllocaM(EngineID, idcount);
	for (uint i = 0; i < idcount; i++) {
		engines[i] = GetNewEngine(_cur_grffile, (VehicleType)feature, grf_load_extended(&buf))->index;
		if (!wagover) last_engines[i] = engines[i];
	}

	uint8 cidcount = grf_load_byte(&buf);
	for (uint c = 0; c < cidcount; c++) {
		uint8 ctype = grf_load_byte(&buf);
		uint16 groupid = grf_load_word(&buf);
		if (!IsValidGroupID(groupid, "VehicleMapSpriteGroup")) continue;

		grfmsg(8, "VehicleMapSpriteGroup: * [%d] Cargo type 0x%X, group id 0x%02X", c, ctype, groupid);

		ctype = TranslateCargo(feature, ctype);
		if (ctype == CT_INVALID) continue;

		for (uint i = 0; i < idcount; i++) {
			EngineID engine = engines[i];

			grfmsg(7, "VehicleMapSpriteGroup: [%d] Engine %d...", i, engine);

			if (wagover) {
				SetWagonOverrideSprites(engine, ctype, _cur_grffile->spritegroups[groupid], last_engines, last_engines_count);
			} else {
				SetCustomEngineSprites(engine, ctype, _cur_grffile->spritegroups[groupid]);
			}
		}
	}

	uint16 groupid = grf_load_word(&buf);
	if (!IsValidGroupID(groupid, "VehicleMapSpriteGroup")) return;

	grfmsg(8, "-- Default group id 0x%04X", groupid);

	for (uint i = 0; i < idcount; i++) {
		EngineID engine = engines[i];

		if (wagover) {
			SetWagonOverrideSprites(engine, CT_DEFAULT, _cur_grffile->spritegroups[groupid], last_engines, last_engines_count);
		} else {
			SetCustomEngineSprites(engine, CT_DEFAULT, _cur_grffile->spritegroups[groupid]);
			SetEngineGRF(engine, _cur_grffile);
		}
	}
}


static void CanalMapSpriteGroup(byte *buf, uint8 idcount)
{
	CanalFeature *cfs = AllocaM(CanalFeature, idcount);
	for (uint i = 0; i < idcount; i++) {
		cfs[i] = (CanalFeature)grf_load_byte(&buf);
	}

	uint8 cidcount = grf_load_byte(&buf);
	buf += cidcount * 3;

	uint16 groupid = grf_load_word(&buf);
	if (!IsValidGroupID(groupid, "CanalMapSpriteGroup")) return;

	for (uint i = 0; i < idcount; i++) {
		CanalFeature cf = cfs[i];

		if (cf >= CF_END) {
			grfmsg(1, "CanalMapSpriteGroup: Canal subset %d out of range, skipping", cf);
			continue;
		}

		_water_feature[cf].grffile = _cur_grffile;
		_water_feature[cf].group = _cur_grffile->spritegroups[groupid];
	}
}


static void StationMapSpriteGroup(byte *buf, uint8 idcount)
{
	uint8 *stations = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		stations[i] = grf_load_byte(&buf);
	}

	uint8 cidcount = grf_load_byte(&buf);
	for (uint c = 0; c < cidcount; c++) {
		uint8 ctype = grf_load_byte(&buf);
		uint16 groupid = grf_load_word(&buf);
		if (!IsValidGroupID(groupid, "StationMapSpriteGroup")) continue;

		ctype = TranslateCargo(GSF_STATION, ctype);
		if (ctype == CT_INVALID) continue;

		for (uint i = 0; i < idcount; i++) {
			StationSpec *statspec = _cur_grffile->stations[stations[i]];

			if (statspec == NULL) {
				grfmsg(1, "StationMapSpriteGroup: Station with ID 0x%02X does not exist, skipping", stations[i]);
				return;
			}

			statspec->spritegroup[ctype] = _cur_grffile->spritegroups[groupid];
		}
	}

	uint16 groupid = grf_load_word(&buf);
	if (!IsValidGroupID(groupid, "StationMapSpriteGroup")) return;

	for (uint i = 0; i < idcount; i++) {
		StationSpec *statspec = _cur_grffile->stations[stations[i]];

		if (statspec == NULL) {
			grfmsg(1, "StationMapSpriteGroup: Station with ID 0x%02X does not exist, skipping", stations[i]);
			continue;
		}

		statspec->spritegroup[CT_DEFAULT] = _cur_grffile->spritegroups[groupid];
		statspec->grffile = _cur_grffile;
		statspec->localidx = stations[i];
		SetCustomStationSpec(statspec);
	}
}


static void TownHouseMapSpriteGroup(byte *buf, uint8 idcount)
{
	uint8 *houses = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		houses[i] = grf_load_byte(&buf);
	}

	/* Skip the cargo type section, we only care about the default group */
	uint8 cidcount = grf_load_byte(&buf);
	buf += cidcount * 3;

	uint16 groupid = grf_load_word(&buf);
	if (!IsValidGroupID(groupid, "TownHouseMapSpriteGroup")) return;

	for (uint i = 0; i < idcount; i++) {
		HouseSpec *hs = _cur_grffile->housespec[houses[i]];

		if (hs == NULL) {
			grfmsg(1, "TownHouseMapSpriteGroup: Too many houses defined, skipping");
			return;
		}

		hs->spritegroup = _cur_grffile->spritegroups[groupid];
	}
}

static void IndustryMapSpriteGroup(byte *buf, uint8 idcount)
{
	uint8 *industries = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		industries[i] = grf_load_byte(&buf);
	}

	/* Skip the cargo type section, we only care about the default group */
	uint8 cidcount = grf_load_byte(&buf);
	buf += cidcount * 3;

	uint16 groupid = grf_load_word(&buf);
	if (!IsValidGroupID(groupid, "IndustryMapSpriteGroup")) return;

	for (uint i = 0; i < idcount; i++) {
		IndustrySpec *indsp = _cur_grffile->industryspec[industries[i]];

		if (indsp == NULL) {
			grfmsg(1, "IndustryMapSpriteGroup: Too many industries defined, skipping");
			return;
		}

		indsp->grf_prop.spritegroup = _cur_grffile->spritegroups[groupid];
	}
}

static void IndustrytileMapSpriteGroup(byte *buf, uint8 idcount)
{
	uint8 *indtiles = AllocaM(uint8, idcount);
	for (uint i = 0; i < idcount; i++) {
		indtiles[i] = grf_load_byte(&buf);
	}

	/* Skip the cargo type section, we only care about the default group */
	uint8 cidcount = grf_load_byte(&buf);
	buf += cidcount * 3;

	uint16 groupid = grf_load_word(&buf);
	if (!IsValidGroupID(groupid, "IndustrytileMapSpriteGroup")) return;

	for (uint i = 0; i < idcount; i++) {
		IndustryTileSpec *indtsp = _cur_grffile->indtspec[indtiles[i]];

		if (indtsp == NULL) {
			grfmsg(1, "IndustrytileMapSpriteGroup: Too many industry tiles defined, skipping");
			return;
		}

		indtsp->grf_prop.spritegroup = _cur_grffile->spritegroups[groupid];
	}
}

static void CargoMapSpriteGroup(byte *buf, uint8 idcount)
{
	CargoID *cargos = AllocaM(CargoID, idcount);
	for (uint i = 0; i < idcount; i++) {
		cargos[i] = grf_load_byte(&buf);
	}

	/* Skip the cargo type section, we only care about the default group */
	uint8 cidcount = grf_load_byte(&buf);
	buf += cidcount * 3;

	uint16 groupid = grf_load_word(&buf);
	if (!IsValidGroupID(groupid, "CargoMapSpriteGroup")) return;

	for (uint i = 0; i < idcount; i++) {
		CargoID cid = cargos[i];

		if (cid >= NUM_CARGO) {
			grfmsg(1, "CargoMapSpriteGroup: Cargo ID %d out of range, skipping", cid);
			continue;
		}

		CargoSpec *cs = &_cargo[cid];
		cs->grffile = _cur_grffile;
		cs->group = _cur_grffile->spritegroups[groupid];
	}
}


/* Action 0x03 */
static void FeatureMapSpriteGroup(byte *buf, size_t len)
{
	/* <03> <feature> <n-id> <ids>... <num-cid> [<cargo-type> <cid>]... <def-cid>
	 * id-list    := [<id>] [id-list]
	 * cargo-list := <cargo-type> <cid> [cargo-list]
	 *
	 * B feature       see action 0
	 * B n-id          bits 0-6: how many IDs this definition applies to
	 *                 bit 7: if set, this is a wagon override definition (see below)
	 * B ids           the IDs for which this definition applies
	 * B num-cid       number of cargo IDs (sprite group IDs) in this definition
	 *                 can be zero, in that case the def-cid is used always
	 * B cargo-type    type of this cargo type (e.g. mail=2, wood=7, see below)
	 * W cid           cargo ID (sprite group ID) for this type of cargo
	 * W def-cid       default cargo ID (sprite group ID) */

	if (_cur_grffile->spritegroups == 0) {
		grfmsg(1, "FeatureMapSpriteGroup: No sprite groups to work on! Skipping");
		return;
	}

	if (!check_length(len, 6, "FeatureMapSpriteGroup")) return;

	buf++;
	uint8 feature = grf_load_byte(&buf);
	uint8 idcount = grf_load_byte(&buf);

	/* If idcount is zero, this is a feature callback */
	if (idcount == 0) {
		/* Skip number of cargo ids? */
		grf_load_byte(&buf);
		uint16 groupid = grf_load_word(&buf);

		grfmsg(6, "FeatureMapSpriteGroup: Adding generic feature callback for feature %d", feature);

		AddGenericCallback(feature, _cur_grffile, _cur_grffile->spritegroups[groupid]);
		return;
	}

	grfmsg(6, "FeatureMapSpriteGroup: Feature %d, %d ids", feature, idcount);

	switch (feature) {
		case GSF_TRAIN:
		case GSF_ROAD:
		case GSF_SHIP:
		case GSF_AIRCRAFT:
			VehicleMapSpriteGroup(buf, feature, idcount);
			return;

		case GSF_CANAL:
			CanalMapSpriteGroup(buf, idcount);
			return;

		case GSF_STATION:
			StationMapSpriteGroup(buf, idcount);
			return;

		case GSF_TOWNHOUSE:
			TownHouseMapSpriteGroup(buf, idcount);
			return;

		case GSF_INDUSTRIES:
			IndustryMapSpriteGroup(buf, idcount);
			return;

		case GSF_INDUSTRYTILES:
			IndustrytileMapSpriteGroup(buf, idcount);
			return;

		case GSF_CARGOS:
			CargoMapSpriteGroup(buf, idcount);
			return;

		default:
			grfmsg(1, "FeatureMapSpriteGroup: Unsupported feature %d, skipping", feature);
			return;
	}
}

/* Action 0x04 */
static void FeatureNewName(byte *buf, size_t len)
{
	/* <04> <veh-type> <language-id> <num-veh> <offset> <data...>
	 *
	 * B veh-type      see action 0 (as 00..07, + 0A
	 *                 But IF veh-type = 48, then generic text
	 * B language-id   If bit 6 is set, This is the extended language scheme,
	                   with up to 64 language.
	                   Otherwise, it is a mapping where set bits have meaning
	                   0 = american, 1 = english, 2 = german, 3 = french, 4 = spanish
	                   Bit 7 set means this is a generic text, not a vehicle one (or else)
	 * B num-veh       number of vehicles which are getting a new name
	 * B/W offset      number of the first vehicle that gets a new name
	 *                 Byte : ID of vehicle to change
	 *                 Word : ID of string to change/add
	 * S data          new texts, each of them zero-terminated, after
	 *                 which the next name begins. */

	bool new_scheme = _cur_grffile->grf_version >= 7;

	if (!check_length(len, 6, "FeatureNewName")) return;
	buf++;
	uint8 feature  = grf_load_byte(&buf);
	uint8 lang     = grf_load_byte(&buf);
	uint8 num      = grf_load_byte(&buf);
	bool generic   = HasBit(lang, 7);
	uint16 id;
	if (generic) {
		id = grf_load_word(&buf);
	} else if (feature <= GSF_AIRCRAFT) {
		id = grf_load_extended(&buf);
	} else {
		id = grf_load_byte(&buf);
	}

	ClrBit(lang, 7);

	uint16 endid = id + num;

	grfmsg(6, "FeatureNewName: About to rename engines %d..%d (feature %d) in language 0x%02X",
	               id, endid, feature, lang);

	len -= generic ? 6 : 5;

	for (; id < endid && len > 0; id++) {
		const char *name   = grf_load_string(&buf, len);
		size_t name_length = strlen(name) + 1;

		len -= (int)name_length;

		grfmsg(8, "FeatureNewName: 0x%04X <- %s", id, name);

		switch (feature) {
			case GSF_TRAIN:
			case GSF_ROAD:
			case GSF_SHIP:
			case GSF_AIRCRAFT:
				if (!generic) {
					Engine *e = GetNewEngine(_cur_grffile, (VehicleType)feature, id);
					StringID string = AddGRFString(_cur_grffile->grfid, e->index, lang, new_scheme, name, e->info.string_id);
					e->info.string_id = string;
				} else {
					AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, id);
				}
				break;

			case GSF_INDUSTRIES: {
				AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_UNDEFINED);
				break;
			}

			case GSF_TOWNHOUSE:
			default:
				switch (GB(id, 8, 8)) {
					case 0xC4: // Station class name
						if (_cur_grffile->stations == NULL || _cur_grffile->stations[GB(id, 0, 8)] == NULL) {
							grfmsg(1, "FeatureNewName: Attempt to name undefined station 0x%X, ignoring", GB(id, 0, 8));
						} else {
							StationClassID sclass = _cur_grffile->stations[GB(id, 0, 8)]->sclass;
							SetStationClassName(sclass, AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_UNDEFINED));
						}
						break;

					case 0xC5: // Station name
						if (_cur_grffile->stations == NULL || _cur_grffile->stations[GB(id, 0, 8)] == NULL) {
							grfmsg(1, "FeatureNewName: Attempt to name undefined station 0x%X, ignoring", GB(id, 0, 8));
						} else {
							_cur_grffile->stations[GB(id, 0, 8)]->name = AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_UNDEFINED);
						}
						break;

					case 0xC9: // House name
						if (_cur_grffile->housespec == NULL || _cur_grffile->housespec[GB(id, 0, 8)] == NULL) {
							grfmsg(1, "FeatureNewName: Attempt to name undefined house 0x%X, ignoring.", GB(id, 0, 8));
						} else {
							_cur_grffile->housespec[GB(id, 0, 8)]->building_name = AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_UNDEFINED);
						}
						break;

					case 0xD0:
					case 0xD1:
					case 0xD2:
					case 0xD3:
					case 0xDC:
						AddGRFString(_cur_grffile->grfid, id, lang, new_scheme, name, STR_UNDEFINED);
						break;

					default:
						grfmsg(7, "FeatureNewName: Unsupported ID (0x%04X)", id);
						break;
				}
				break;

#if 0
				case GSF_CANAL :
				case GSF_BRIDGE :
					AddGRFString(_cur_spriteid, id, lang, name);
					switch (GB(id, 8, 8)) {
						case 0xC9: // House name
						default:
							grfmsg(7, "FeatureNewName: Unsupported ID (0x%04X)", id);
					}
					break;

				default :
					grfmsg(7, "FeatureNewName: Unsupported feature (0x%02X)", feature);
					break;
#endif
		}
	}
}

/**
 * Sanitize incoming sprite offsets for Action 5 graphics replacements.
 * @param num         the number of sprites to load.
 * @param offset      offset from the base.
 * @param max_sprites the maximum number of sprites that can be loaded in this action 5.
 * @param name        used for error warnings.
 * @return the number of sprites that is going to be skipped
 */
static uint16 SanitizeSpriteOffset(uint16& num, uint16 offset, int max_sprites, const char *name)
{

	if (offset >= max_sprites) {
		grfmsg(1, "GraphicsNew: %s sprite offset must be less than %i, skipping", name, max_sprites);
		uint orig_num = num;
		num = 0;
		return orig_num;
	}

	if (offset + num > max_sprites) {
		grfmsg(4, "GraphicsNew: %s sprite overflow, truncating...", name);
		uint orig_num = num;
		num = max(max_sprites - offset, 0);
		return orig_num - num;
	}

	return 0;
}

/* Action 0x05 */
static void GraphicsNew(byte *buf, size_t len)
{
	/* <05> <graphics-type> <num-sprites> <other data...>
	 *
	 * B graphics-type What set of graphics the sprites define.
	 * E num-sprites   How many sprites are in this set?
	 * V other data    Graphics type specific data.  Currently unused. */
	/* TODO */

	enum Action5BlockType {
		A5BLOCK_FIXED,                ///< Only allow replacing a whole block of sprites. (TTDP compatible)
		A5BLOCK_ALLOW_OFFSET,         ///< Allow replacing any subset by specifiing an offset.
		A5BLOCK_INVALID,              ///< unknown/not-implemented type
	};
	struct Action5Type {
		Action5BlockType block_type;  ///< How is this Action5 type processed?
		SpriteID sprite_base;         ///< Load the sprites starting from this sprite.
		uint16 min_sprites;           ///< If the Action5 contains less sprites, the whole block will be ignored.
		uint16 max_sprites;           ///< If the Action5 contains more sprites, only the first max_sprites sprites will be used.
		const char *name;             ///< Name for error messages.
	};

	static const Action5Type action5_types[] = {
		/* Note: min_sprites should not be changed. Therefore these constants are directly here and not in sprites.h */
		/* 0x00 */ { A5BLOCK_INVALID,      0,                            0, 0,                                           "Type 0x00"             },
		/* 0x01 */ { A5BLOCK_INVALID,      0,                            0, 0,                                           "Type 0x01"             },
		/* 0x02 */ { A5BLOCK_INVALID,      0,                            0, 0,                                           "Type 0x02"             },
		/* 0x03 */ { A5BLOCK_INVALID,      0,                            0, 0,                                           "Type 0x03"             },
		/* 0x04 */ { A5BLOCK_FIXED,        SPR_SIGNALS_BASE,            48, PRESIGNAL_SEMAPHORE_AND_PBS_SPRITE_COUNT,    "Signal graphics"       },
		/* 0x05 */ { A5BLOCK_FIXED,        SPR_ELRAIL_BASE,             48, ELRAIL_SPRITE_COUNT,                         "Catenary graphics"     },
		/* 0x06 */ { A5BLOCK_FIXED,        SPR_SLOPES_BASE,             74, NORMAL_AND_HALFTILE_FOUNDATION_SPRITE_COUNT, "Foundation graphics"   },
		/* 0x07 */ { A5BLOCK_INVALID,      0,                           75, 0,                                           "TTDP GUI graphics"     }, // Not used by OTTD.
		/* 0x08 */ { A5BLOCK_FIXED,        SPR_CANALS_BASE,             65, CANALS_SPRITE_COUNT,                         "Canal graphics"        },
		/* 0x09 */ { A5BLOCK_FIXED,        SPR_ONEWAY_BASE,              6, ONEWAY_SPRITE_COUNT,                         "One way road graphics" },
		/* 0x0A */ { A5BLOCK_FIXED,        SPR_2CCMAP_BASE,            256, TWOCCMAP_SPRITE_COUNT,                       "2CC colour maps"       },
		/* 0x0B */ { A5BLOCK_FIXED,        SPR_TRAMWAY_BASE,           113, TRAMWAY_SPRITE_COUNT,                        "Tramway graphics"      },
		/* 0x0C */ { A5BLOCK_INVALID,      0,                          133, 0,                                           "Snowy temperate tree"  }, // Not yet used by OTTD.
		/* 0x0D */ { A5BLOCK_FIXED,        SPR_SHORE_BASE,              16, SPR_SHORE_SPRITE_COUNT,                      "Shore graphics"        },
		/* 0x0E */ { A5BLOCK_INVALID,      0,                            0, 0,                                           "New Signals graphics"  }, // Not yet used by OTTD.
		/* 0x0F */ { A5BLOCK_FIXED,        SPR_TRACKS_FOR_SLOPES_BASE,  12, TRACKS_FOR_SLOPES_SPRITE_COUNT,              "Sloped rail track"     },
		/* 0x10 */ { A5BLOCK_FIXED,        SPR_AIRPORTX_BASE,           15, AIRPORTX_SPRITE_COUNT,                       "Airport graphics"      },
		/* 0x11 */ { A5BLOCK_FIXED,        SPR_ROADSTOP_BASE,            8, ROADSTOP_SPRITE_COUNT,                       "Road stop graphics"    },
		/* 0x12 */ { A5BLOCK_FIXED,        SPR_AQUEDUCT_BASE,            8, AQUEDUCT_SPRITE_COUNT,                       "Aqueduct graphics"     },
		/* 0x13 */ { A5BLOCK_FIXED,        SPR_AUTORAIL_BASE,           55, AUTORAIL_SPRITE_COUNT,                       "Autorail graphics"     },
		/* 0x14 */ { A5BLOCK_ALLOW_OFFSET, SPR_FLAGS_BASE,               1, FLAGS_SPRITE_COUNT,                          "Flag graphics"         },
		/* 0x15 */ { A5BLOCK_ALLOW_OFFSET, SPR_OPENTTD_BASE,             1, OPENTTD_SPRITE_COUNT,                        "OpenTTD GUI graphics"  },
	};

	if (!check_length(len, 2, "GraphicsNew")) return;
	buf++;
	uint8 type = grf_load_byte(&buf);
	uint16 num = grf_load_extended(&buf);
	uint16 offset = HasBit(type, 7) ? grf_load_extended(&buf) : 0;
	ClrBit(type, 7); // Clear the high bit as that only indicates whether there is an offset.

	if ((type == 0x0D) && (num == 10) && _cur_grffile->is_ottdfile) {
		/* Special not-TTDP-compatible case used in openttd(d/w).grf
		 * Missing shore sprites and initialisation of SPR_SHORE_BASE */
		grfmsg(2, "GraphicsNew: Loading 10 missing shore sprites from openttd(d/w).grf.");
		LoadNextSprite(SPR_SHORE_BASE +  0, _file_index, _nfo_line++); // SLOPE_STEEP_S
		LoadNextSprite(SPR_SHORE_BASE +  5, _file_index, _nfo_line++); // SLOPE_STEEP_W
		LoadNextSprite(SPR_SHORE_BASE +  7, _file_index, _nfo_line++); // SLOPE_WSE
		LoadNextSprite(SPR_SHORE_BASE + 10, _file_index, _nfo_line++); // SLOPE_STEEP_N
		LoadNextSprite(SPR_SHORE_BASE + 11, _file_index, _nfo_line++); // SLOPE_NWS
		LoadNextSprite(SPR_SHORE_BASE + 13, _file_index, _nfo_line++); // SLOPE_ENW
		LoadNextSprite(SPR_SHORE_BASE + 14, _file_index, _nfo_line++); // SLOPE_SEN
		LoadNextSprite(SPR_SHORE_BASE + 15, _file_index, _nfo_line++); // SLOPE_STEEP_E
		LoadNextSprite(SPR_SHORE_BASE + 16, _file_index, _nfo_line++); // SLOPE_EW
		LoadNextSprite(SPR_SHORE_BASE + 17, _file_index, _nfo_line++); // SLOPE_NS
		if (_loaded_newgrf_features.shore == SHORE_REPLACE_NONE) _loaded_newgrf_features.shore = SHORE_REPLACE_ONLY_NEW;
		return;
	}

	/* Supported type? */
	if ((type >= lengthof(action5_types)) || (action5_types[type].block_type == A5BLOCK_INVALID)) {
		grfmsg(2, "GraphicsNew: Custom graphics (type 0x%02X) sprite block of length %u (unimplemented, ignoring)", type, num);
		_skip_sprites = num;
		return;
	}

	const Action5Type *action5_type = &action5_types[type];

	/* Ignore offset if not allowed */
	if ((action5_type->block_type != A5BLOCK_ALLOW_OFFSET) && (offset != 0)) {
		grfmsg(1, "GraphicsNew: %s (type 0x%02X) do not allow an <offset> field. Ignoring offset.", action5_type->name, type);
		offset = 0;
	}

	/* Ignore action5 if too few sprites are specified. (for TTDP compatibility)
	 * This does not make sense, if <offset> is allowed */
	if ((action5_type->block_type == A5BLOCK_FIXED) && (num < action5_type->min_sprites)) {
		grfmsg(1, "GraphicsNew: %s (type 0x%02X) count must be at least %d. Only %d were specified. Skipping.", action5_type->name, type, action5_type->min_sprites, num);
		_skip_sprites = num;
		return;
	}

	/* Load at most max_sprites sprites. Skip remaining sprites. (for compatibility with TTDP and future extentions) */
	uint16 skip_num = SanitizeSpriteOffset(num, offset, action5_type->max_sprites, action5_type->name);
	SpriteID replace = action5_type->sprite_base + offset;

	/* Load <num> sprites starting from <replace>, then skip <skip_num> sprites. */
	grfmsg(2, "GraphicsNew: Replacing sprites %d to %d of %s (type 0x%02X) at SpriteID 0x%04X", offset, offset + num - 1, action5_type->name, type, replace);

	for (; num > 0; num--) {
		_nfo_line++;
		LoadNextSprite(replace == 0 ? _cur_spriteid++ : replace++, _file_index, _nfo_line);
	}

	if (type == 0x0D) _loaded_newgrf_features.shore = SHORE_REPLACE_ACTION_5;

	_skip_sprites = skip_num;
}

/* Action 0x05 (SKIP) */
static void SkipAct5(byte *buf, size_t len)
{
	if (!check_length(len, 2, "SkipAct5")) return;
	buf++;

	/* Ignore type byte */
	grf_load_byte(&buf);

	/* Skip the sprites of this action */
	_skip_sprites = grf_load_extended(&buf);

	grfmsg(3, "SkipAct5: Skipping %d sprites", _skip_sprites);
}

/**
 * Reads a variable common to VarAction2 and Action7/9/D.
 *
 * Returns VarAction2 variable 'param' resp. Action7/9/D variable '0x80 + param'.
 * If a variable is not accessible from all four actions, it is handled in the action specific functions.
 *
 * @param param variable number (as for VarAction2, for Action7/9/D you have to subtract 0x80 first).
 * @param value returns the value of the variable.
 * @return true iff the variable is known and the value is returned in 'value'.
 */
bool GetGlobalVariable(byte param, uint32 *value)
{
	switch (param) {
		case 0x00: // current date
			*value = max(_date - DAYS_TILL_ORIGINAL_BASE_YEAR, 0);
			return true;

		case 0x01: // current year
			*value = Clamp(_cur_year, ORIGINAL_BASE_YEAR, ORIGINAL_MAX_YEAR) - ORIGINAL_BASE_YEAR;
			return true;

		case 0x02: { // detailed date information: month of year (bit 0-7), day of month (bit 8-12), leap year (bit 15), day of year (bit 16-24)
			YearMonthDay ymd;
			ConvertDateToYMD(_date, &ymd);
			Date start_of_year = ConvertYMDToDate(ymd.year, 0, 1);
			*value = ymd.month | (ymd.day - 1) << 8 | (IsLeapYear(ymd.year) ? 1 << 15 : 0) | (_date - start_of_year) << 16;
			return true;
		}

		case 0x03: // current climate, 0=temp, 1=arctic, 2=trop, 3=toyland
			*value = _settings_game.game_creation.landscape;
			return true;

		case 0x06: // road traffic side, bit 4 clear=left, set=right
			*value = _settings_game.vehicle.road_side << 4;
			return true;

		case 0x09: // date fraction
			*value = _date_fract;
			return true;

		case 0x0A: // animation counter
			*value = _tick_counter;
			return true;

		case 0x0B: { // TTDPatch version
			uint major    = 2;
			uint minor    = 6;
			uint revision = 1; // special case: 2.0.1 is 2.0.10
			uint build    = 1382;
			*value = (major << 24) | (minor << 20) | (revision << 16) | build;
			return true;
		}

		case 0x0D: // TTD Version, 00=DOS, 01=Windows
			*value = !_use_dos_palette;
			return true;

		case 0x0E: // Y-offset for train sprites
			*value = _traininfo_vehicle_pitch;
			return true;

		case 0x0F: // Rail track type cost factors
			*value = 0;
			SB(*value, 0, 8, _railtype_cost_multiplier[0]); // normal rail
			if (_settings_game.vehicle.disable_elrails) {
				/* skip elrail multiplier - disabled */
				SB(*value, 8, 8, _railtype_cost_multiplier[2]); // monorail
			} else {
				SB(*value, 8, 8, _railtype_cost_multiplier[1]); // electified railway
				/* Skip monorail multiplier - no space in result */
			}
			SB(*value, 16, 8, _railtype_cost_multiplier[3]); // maglev
			return true;

		case 0x11: // current rail tool type
			*value = 0;
			return true;

		case 0x12: // Game mode
			*value = _game_mode;
			return true;

		/* case 0x13: // Tile refresh offset to left    not implemented */
		/* case 0x14: // Tile refresh offset to right   not implemented */
		/* case 0x15: // Tile refresh offset upwards    not implemented */
		/* case 0x16: // Tile refresh offset downwards  not implemented */
		/* case 0x17: // temperate snow line            not implemented */

		case 0x1A: // Always -1
			*value = UINT_MAX;
			return true;

		case 0x1B: // Display options
			*value = GB(_display_opt, 0, 6);
			return true;

		case 0x1D: // TTD Platform, 00=TTDPatch, 01=OpenTTD
			*value = 1;
			return true;

		case 0x1E: // Miscellaneous GRF features
			*value = _misc_grf_features;
			return true;

		/* case 0x1F: // locale dependent settings not implemented */

		case 0x20: // snow line height
			*value = _settings_game.game_creation.landscape == LT_ARCTIC ? GetSnowLine() : 0xFF;
			return true;

		case 0x21: // OpenTTD version
			*value = _openttd_newgrf_version;
			return true;

		case 0x22: // difficulty level
			*value = _settings_game.difficulty.diff_level;
			return true;

		case 0x23: // long format date
			*value = _date;
			return true;

		case 0x24: // long format year
			*value = _cur_year;
			return true;

		default: return false;
	}
}

static uint32 GetParamVal(byte param, uint32 *cond_val)
{
	/* First handle variable common with VarAction2 */
	uint32 value;
	if (GetGlobalVariable(param - 0x80, &value)) return value;

	/* Non-common variable */
	switch (param) {
		case 0x84: { // GRF loading stage
			uint32 res = 0;

			if (_cur_stage > GLS_INIT) SetBit(res, 0);
			if (_cur_stage == GLS_RESERVE) SetBit(res, 8);
			if (_cur_stage == GLS_ACTIVATION) SetBit(res, 9);
			return res;
		}

		case 0x85: // TTDPatch flags, only for bit tests
			if (cond_val == NULL) {
				/* Supported in Action 0x07 and 0x09, not 0x0D */
				return 0;
			} else {
				uint32 param_val = _ttdpatch_flags[*cond_val / 0x20];
				*cond_val %= 0x20;
				return param_val;
			}

		case 0x88: // GRF ID check
			return 0;

		/* case 0x99: Global ID offest not implemented */

		default:
			/* GRF Parameter */
			if (param < 0x80) return _cur_grffile->param[param];

			/* In-game variable. */
			grfmsg(1, "Unsupported in-game variable 0x%02X", param);
			return UINT_MAX;
	}
}

/* Action 0x06 */
static void CfgApply(byte *buf, size_t len)
{
	/* <06> <param-num> <param-size> <offset> ... <FF>
	 *
	 * B param-num     Number of parameter to substitute (First = "zero")
	 *                 Ignored if that parameter was not specified in newgrf.cfg
	 * B param-size    How many bytes to replace.  If larger than 4, the
	 *                 bytes of the following parameter are used.  In that
	 *                 case, nothing is applied unless *all* parameters
	 *                 were specified.
	 * B offset        Offset into data from beginning of next sprite
	 *                 to place where parameter is to be stored. */

	/* Preload the next sprite */
	size_t pos = FioGetPos();
	uint16 num = FioReadWord();
	uint8 type = FioReadByte();
	byte *preload_sprite = NULL;

	/* Check if the sprite is a pseudo sprite. We can't operate on real sprites. */
	if (type == 0xFF) {
		preload_sprite = MallocT<byte>(num);
		FioReadBlock(preload_sprite, num);
	}

	/* Reset the file position to the start of the next sprite */
	FioSeekTo(pos, SEEK_SET);

	if (type != 0xFF) {
		grfmsg(2, "CfgApply: Ignoring (next sprite is real, unsupported)");
		free(preload_sprite);
		return;
	}

	GRFLocation location(_cur_grfconfig->grfid, _nfo_line + 1);
	GRFLineToSpriteOverride::iterator it = _grf_line_to_action6_sprite_override.find(location);
	if (it != _grf_line_to_action6_sprite_override.end()) {
		free(preload_sprite);
		preload_sprite = _grf_line_to_action6_sprite_override[location];
	} else {
		_grf_line_to_action6_sprite_override[location] = preload_sprite;
	}

	/* Now perform the Action 0x06 on our data. */
	buf++;

	for (;;) {
		uint i;
		uint param_num;
		uint param_size;
		uint offset;
		bool add_value;

		/* Read the parameter to apply. 0xFF indicates no more data to change. */
		param_num = grf_load_byte(&buf);
		if (param_num == 0xFF) break;

		/* Get the size of the parameter to use. If the size covers multiple
		 * double words, sequential parameter values are used. */
		param_size = grf_load_byte(&buf);

		/* Bit 7 of param_size indicates we should add to the original value
		 * instead of replacing it. */
		add_value  = HasBit(param_size, 7);
		param_size = GB(param_size, 0, 7);

		/* Where to apply the data to within the pseudo sprite data. */
		offset     = grf_load_extended(&buf);

		/* If the parameter is a GRF parameter (not an internal variable) check
		 * if it (and all further sequential parameters) has been defined. */
		if (param_num < 0x80 && (param_num + (param_size - 1) / 4) >= _cur_grffile->param_end) {
			grfmsg(2, "CfgApply: Ignoring (param %d not set)", (param_num + (param_size - 1) / 4));
			break;
		}

		grfmsg(8, "CfgApply: Applying %u bytes from parameter 0x%02X at offset 0x%04X", param_size, param_num, offset);

		bool carry = false;
		for (i = 0; i < param_size; i++) {
			uint32 value = GetParamVal(param_num + i / 4, NULL);
			/* Reset carry flag for each iteration of the variable (only really
			 * matters if param_size is greater than 4) */
			if (i == 0) carry = false;

			if (add_value) {
				uint new_value = preload_sprite[offset + i] + GB(value, (i % 4) * 8, 8) + (carry ? 1 : 0);
				preload_sprite[offset + i] = GB(new_value, 0, 8);
				/* Check if the addition overflowed */
				carry = new_value >= 256;
			} else {
				preload_sprite[offset + i] = GB(value, (i % 4) * 8, 8);
			}
		}
	}
}

/**
 * Disable a static NewGRF when it is influencing another (non-static)
 * NewGRF as this could cause desyncs.
 *
 * We could just tell the NewGRF querying that the file doesn't exist,
 * but that might give unwanted results. Disabling the NewGRF gives the
 * best result as no NewGRF author can complain about that.
 * @param c the NewGRF to disable.
 */
static void DisableStaticNewGRFInfluencingNonStaticNewGRFs(GRFConfig *c)
{
	if (c->error != NULL) {
		free(c->error->custom_message);
		free(c->error->data);
		free(c->error);
	}
	c->status = GCS_DISABLED;
	c->error  = CallocT<GRFError>(1);
	c->error->data = strdup(_cur_grfconfig->name);
	c->error->severity = STR_NEWGRF_ERROR_MSG_FATAL;
	c->error->message  = STR_NEWGRF_ERROR_STATIC_GRF_CAUSES_DESYNC;

	ClearTemporaryNewGRFData();
	_skip_sprites = -1;
}

/* Action 0x07 */
/* Action 0x09 */
static void SkipIf(byte *buf, size_t len)
{
	/* <07/09> <param-num> <param-size> <condition-type> <value> <num-sprites>
	 *
	 * B param-num
	 * B param-size
	 * B condition-type
	 * V value
	 * B num-sprites */
	/* TODO: More params. More condition types. */
	uint32 cond_val = 0;
	uint32 mask = 0;
	bool result;

	if (!check_length(len, 6, "SkipIf")) return;
	buf++;
	uint8 param     = grf_load_byte(&buf);
	uint8 paramsize = grf_load_byte(&buf);
	uint8 condtype  = grf_load_byte(&buf);

	if (condtype < 2) {
		/* Always 1 for bit tests, the given value should be ignored. */
		paramsize = 1;
	}

	switch (paramsize) {
		case 4: cond_val = grf_load_dword(&buf); mask = 0xFFFFFFFF; break;
		case 2: cond_val = grf_load_word(&buf);  mask = 0x0000FFFF; break;
		case 1: cond_val = grf_load_byte(&buf);  mask = 0x000000FF; break;
		default: break;
	}

	if (param < 0x80 && _cur_grffile->param_end <= param) {
		grfmsg(7, "SkipIf: Param %d undefined, skipping test", param);
		return;
	}

	uint32 param_val = GetParamVal(param, &cond_val);

	grfmsg(7, "SkipIf: Test condtype %d, param 0x%08X, condval 0x%08X", condtype, param_val, cond_val);

	/*
	 * Parameter (variable in specs) 0x88 can only have GRF ID checking
	 * conditions, except conditions 0x0B and 0x0C (cargo availability)
	 * as those ignore the parameter. So, when the condition type is
	 * either of those, the specific variable 0x88 code is skipped, so
	 * the "general" code for the cargo availability conditions kicks in.
	 */
	if (param == 0x88 && condtype != 0x0B && condtype != 0x0C) {
		/* GRF ID checks */

		GRFConfig *c = GetGRFConfig(cond_val);

		if (c != NULL && HasBit(c->flags, GCF_STATIC) && !HasBit(_cur_grfconfig->flags, GCF_STATIC) && c->status != GCS_DISABLED && _networking) {
			DisableStaticNewGRFInfluencingNonStaticNewGRFs(c);
			c = NULL;
		}

		if (condtype != 10 && c == NULL) {
			grfmsg(7, "SkipIf: GRFID 0x%08X unknown, skipping test", BSWAP32(cond_val));
			return;
		}

		switch (condtype) {
			/* Tests 0x06 to 0x0A are only for param 0x88, GRFID checks */
			case 0x06: // Is GRFID active?
				result = c->status == GCS_ACTIVATED;
				break;

			case 0x07: // Is GRFID non-active?
				result = c->status != GCS_ACTIVATED;
				break;

			case 0x08: // GRFID is not but will be active?
				result = c->status == GCS_INITIALISED;
				break;

			case 0x09: // GRFID is or will be active?
				result = c->status == GCS_ACTIVATED || c->status == GCS_INITIALISED;
				break;

			case 0x0A: // GRFID is not nor will be active
				/* This is the only condtype that doesn't get ignored if the GRFID is not found */
				result = c == NULL || c->flags == GCS_DISABLED || c->status == GCS_NOT_FOUND;
				break;

			default: grfmsg(1, "SkipIf: Unsupported GRF condition type %02X. Ignoring", condtype); return;
		}
	} else {
		/* Parameter or variable tests */
		switch (condtype) {
			case 0x00: result = !!(param_val & (1 << cond_val));
				break;
			case 0x01: result = !(param_val & (1 << cond_val));
				break;
			case 0x02: result = (param_val & mask) == cond_val;
				break;
			case 0x03: result = (param_val & mask) != cond_val;
				break;
			case 0x04: result = (param_val & mask) < cond_val;
				break;
			case 0x05: result = (param_val & mask) > cond_val;
				break;
			case 0x0B: result = GetCargoIDByLabel(BSWAP32(cond_val)) == CT_INVALID;
				break;
			case 0x0C: result = GetCargoIDByLabel(BSWAP32(cond_val)) != CT_INVALID;
				break;

			default: grfmsg(1, "SkipIf: Unsupported condition type %02X. Ignoring", condtype); return;
		}
	}

	if (!result) {
		grfmsg(2, "SkipIf: Not skipping sprites, test was false");
		return;
	}

	uint8 numsprites = grf_load_byte(&buf);

	/* numsprites can be a GOTO label if it has been defined in the GRF
	 * file. The jump will always be the first matching label that follows
	 * the current nfo_line. If no matching label is found, the first matching
	 * label in the file is used. */
	GRFLabel *choice = NULL;
	for (GRFLabel *label = _cur_grffile->label; label != NULL; label = label->next) {
		if (label->label != numsprites) continue;

		/* Remember a goto before the current line */
		if (choice == NULL) choice = label;
		/* If we find a label here, this is definitely good */
		if (label->nfo_line > _nfo_line) {
			choice = label;
			break;
		}
	}

	if (choice != NULL) {
		grfmsg(2, "SkipIf: Jumping to label 0x%0X at line %d, test was true", choice->label, choice->nfo_line);
		FioSeekTo(choice->pos, SEEK_SET);
		_nfo_line = choice->nfo_line;
		return;
	}

	grfmsg(2, "SkipIf: Skipping %d sprites, test was true", numsprites);
	_skip_sprites = numsprites;
	if (_skip_sprites == 0) {
		/* Zero means there are no sprites to skip, so
		 * we use -1 to indicate that all further
		 * sprites should be skipped. */
		_skip_sprites = -1;

		/* If an action 8 hasn't been encountered yet, disable the grf. */
		if (_cur_grfconfig->status != GCS_ACTIVATED) {
			_cur_grfconfig->status = GCS_DISABLED;
			ClearTemporaryNewGRFData();
		}
	}
}


/* Action 0x08 (GLS_FILESCAN) */
static void ScanInfo(byte *buf, size_t len)
{
	if (!check_length(len, 8, "Info")) return;
	buf++;
	grf_load_byte(&buf);
	uint32 grfid  = grf_load_dword(&buf);

	_cur_grfconfig->grfid = grfid;

	/* GRF IDs starting with 0xFF are reserved for internal TTDPatch use */
	if (GB(grfid, 24, 8) == 0xFF) SetBit(_cur_grfconfig->flags, GCF_SYSTEM);

	len -= 6;
	const char *name = grf_load_string(&buf, len);
	_cur_grfconfig->name = TranslateTTDPatchCodes(grfid, name);

	len -= strlen(name) + 1;
	if (len > 0) {
		const char *info = grf_load_string(&buf, len);
		_cur_grfconfig->info = TranslateTTDPatchCodes(grfid, info);
	}

	/* GLS_INFOSCAN only looks for the action 8, so we can skip the rest of the file */
	_skip_sprites = -1;
}

/* Action 0x08 */
static void GRFInfo(byte *buf, size_t len)
{
	/* <08> <version> <grf-id> <name> <info>
	 *
	 * B version       newgrf version, currently 06
	 * 4*B grf-id      globally unique ID of this .grf file
	 * S name          name of this .grf set
	 * S info          string describing the set, and e.g. author and copyright */

	if (!check_length(len, 8, "GRFInfo")) return;
	buf++;
	uint8 version    = grf_load_byte(&buf);
	uint32 grfid     = grf_load_dword(&buf);
	const char *name = grf_load_string(&buf, len - 6);

	_cur_grffile->grfid = grfid;
	_cur_grffile->grf_version = version;
	_cur_grfconfig->status = _cur_stage < GLS_RESERVE ? GCS_INITIALISED : GCS_ACTIVATED;

	/* Do swap the GRFID for displaying purposes since people expect that */
	DEBUG(grf, 1, "GRFInfo: Loaded GRFv%d set %08lX - %s", version, BSWAP32(grfid), name);
}

/* Action 0x0A */
static void SpriteReplace(byte *buf, size_t len)
{
	/* <0A> <num-sets> <set1> [<set2> ...]
	 * <set>: <num-sprites> <first-sprite>
	 *
	 * B num-sets      How many sets of sprites to replace.
	 * Each set:
	 * B num-sprites   How many sprites are in this set
	 * W first-sprite  First sprite number to replace */

	buf++; // skip action byte
	uint8 num_sets = grf_load_byte(&buf);

	for (uint i = 0; i < num_sets; i++) {
		uint8 num_sprites = grf_load_byte(&buf);
		uint16 first_sprite = grf_load_word(&buf);

		grfmsg(2, "SpriteReplace: [Set %d] Changing %d sprites, beginning with %d",
			i, num_sprites, first_sprite
		);

		for (uint j = 0; j < num_sprites; j++) {
			int load_index = first_sprite + j;
			_nfo_line++;
			LoadNextSprite(load_index, _file_index, _nfo_line); // XXX

			/* Shore sprites now located at different addresses.
			 * So detect when the old ones get replaced. */
			if (IsInsideMM(load_index, SPR_ORIGINALSHORE_START, SPR_ORIGINALSHORE_END + 1)) {
				if (_loaded_newgrf_features.shore != SHORE_REPLACE_ACTION_5) _loaded_newgrf_features.shore = SHORE_REPLACE_ACTION_A;
			}
		}
	}
}

/* Action 0x0A (SKIP) */
static void SkipActA(byte *buf, size_t len)
{
	buf++;
	uint8 num_sets = grf_load_byte(&buf);

	for (uint i = 0; i < num_sets; i++) {
		/* Skip the sprites this replaces */
		_skip_sprites += grf_load_byte(&buf);
		/* But ignore where they go */
		grf_load_word(&buf);
	}

	grfmsg(3, "SkipActA: Skipping %d sprites", _skip_sprites);
}

/* Action 0x0B */
static void GRFLoadError(byte *buf, size_t len)
{
	/* <0B> <severity> <language-id> <message-id> [<message...> 00] [<data...>] 00 [<parnum>]
	 *
	 * B severity      00: notice, contine loading grf file
	 *                 01: warning, continue loading grf file
	 *                 02: error, but continue loading grf file, and attempt
	 *                     loading grf again when loading or starting next game
	 *                 03: error, abort loading and prevent loading again in
	 *                     the future (only when restarting the patch)
	 * B language-id   see action 4, use 1F for built-in error messages
	 * B message-id    message to show, see below
	 * S message       for custom messages (message-id FF), text of the message
	 *                 not present for built-in messages.
	 * V data          additional data for built-in (or custom) messages
	 * B parnum        parameter numbers to be shown in the message (maximum of 2) */

	static const StringID msgstr[] = {
		STR_NEWGRF_ERROR_VERSION_NUMBER,
		STR_NEWGRF_ERROR_DOS_OR_WINDOWS,
		STR_NEWGRF_ERROR_UNSET_SWITCH,
		STR_NEWGRF_ERROR_INVALID_PARAMETER,
		STR_NEWGRF_ERROR_LOAD_BEFORE,
		STR_NEWGRF_ERROR_LOAD_AFTER,
		STR_NEWGRF_ERROR_OTTD_VERSION_NUMBER,
	};

	static const StringID sevstr[] = {
		STR_NEWGRF_ERROR_MSG_INFO,
		STR_NEWGRF_ERROR_MSG_WARNING,
		STR_NEWGRF_ERROR_MSG_ERROR,
		STR_NEWGRF_ERROR_MSG_FATAL
	};

	if (!check_length(len, 6, "GRFLoadError")) return;

	/* For now we can only show one message per newgrf file. */
	if (_cur_grfconfig->error != NULL) return;

	buf++; // Skip the action byte.
	byte severity   = grf_load_byte(&buf);
	byte lang       = grf_load_byte(&buf);
	byte message_id = grf_load_byte(&buf);
	len -= 4;

	/* Skip the error if it isn't valid for the current language. */
	if (!CheckGrfLangID(lang, _cur_grffile->grf_version)) return;

	/* Skip the error until the activation stage unless bit 7 of the severity
	 * is set. */
	if (!HasBit(severity, 7) && _cur_stage == GLS_INIT) {
		grfmsg(7, "GRFLoadError: Skipping non-fatal GRFLoadError in stage %d", _cur_stage);
		return;
	}
	ClrBit(severity, 7);

	if (severity >= lengthof(sevstr)) {
		grfmsg(7, "GRFLoadError: Invalid severity id %d. Setting to 2 (non-fatal error).", severity);
		severity = 2;
	} else if (severity == 3) {
		/* This is a fatal error, so make sure the GRF is deactivated and no
		 * more of it gets loaded. */
		_cur_grfconfig->status = GCS_DISABLED;
		ClearTemporaryNewGRFData();
		_skip_sprites = -1;
	}

	if (message_id >= lengthof(msgstr) && message_id != 0xFF) {
		grfmsg(7, "GRFLoadError: Invalid message id.");
		return;
	}

	if (len <= 1) {
		grfmsg(7, "GRFLoadError: No message data supplied.");
		return;
	}

	GRFError *error = CallocT<GRFError>(1);

	error->severity = sevstr[severity];

	if (message_id == 0xFF) {
		/* This is a custom error message. */
		const char *message = grf_load_string(&buf, len);
		len -= (strlen(message) + 1);

		error->custom_message = TranslateTTDPatchCodes(_cur_grffile->grfid, message);
	} else {
		error->message = msgstr[message_id];
	}

	if (len > 0) {
		const char *data = grf_load_string(&buf, len);
		len -= (strlen(data) + 1);

		error->data = TranslateTTDPatchCodes(_cur_grffile->grfid, data);
	}

	/* Only two parameter numbers can be used in the string. */
	uint i = 0;
	for (; i < 2 && len > 0; i++) {
		error->param_number[i] = grf_load_byte(&buf);
		len--;
	}
	error->num_params = i;

	_cur_grfconfig->error = error;
}

/* Action 0x0C */
static void GRFComment(byte *buf, size_t len)
{
	/* <0C> [<ignored...>]
	 *
	 * V ignored       Anything following the 0C is ignored */

	if (len == 1) return;

	size_t text_len = len - 1;
	const char *text = (const char*)(buf + 1);
	grfmsg(2, "GRFComment: %.*s", text_len, text);
}

/* Action 0x0D (GLS_SAFETYSCAN) */
static void SafeParamSet(byte *buf, size_t len)
{
	if (!check_length(len, 5, "SafeParamSet")) return;
	buf++;
	uint8 target = grf_load_byte(&buf);

	/* Only writing GRF parameters is considered safe */
	if (target < 0x80) return;

	/* GRM could be unsafe, but as here it can only happen after other GRFs
	 * are loaded, it should be okay. If the GRF tried to use the slots it
	 * reserved, it would be marked unsafe anyway. GRM for (e.g. bridge)
	 * sprites  is considered safe. */

	SetBit(_cur_grfconfig->flags, GCF_UNSAFE);

	/* Skip remainder of GRF */
	_skip_sprites = -1;
}


static uint32 GetPatchVariable(uint8 param)
{
	switch (param) {
		/* start year - 1920 */
		case 0x0B: return max(_settings_game.game_creation.starting_year, ORIGINAL_BASE_YEAR) - ORIGINAL_BASE_YEAR;

		/* freight trains weight factor */
		case 0x0E: return _settings_game.vehicle.freight_trains;

		/* empty wagon speed increase */
		case 0x0F: return 0;

		/* plane speed factor; our patch option is reversed from TTDPatch's,
		 * the following is good for 1x, 2x and 4x (most common?) and...
		 * well not really for 3x. */
		case 0x10:
			switch (_settings_game.vehicle.plane_speed) {
				default:
				case 4: return 1;
				case 3: return 2;
				case 2: return 2;
				case 1: return 4;
			}


		/* 2CC colormap base sprite */
		case 0x11: return SPR_2CCMAP_BASE;

		/* map size: format = -MABXYSS
		 * M  : the type of map
		 *       bit 0 : set   : squared map. Bit 1 is now not relevant
		 *               clear : rectangle map. Bit 1 will indicate the bigger edge of the map
		 *       bit 1 : set   : Y is the bigger edge. Bit 0 is clear
		 *               clear : X is the bigger edge.
		 * A  : minimum edge(log2) of the map
		 * B  : maximum edge(log2) of the map
		 * XY : edges(log2) of each side of the map.
		 * SS : combination of both X and Y, thus giving the size(log2) of the map
		 */
		case 0x13: {
			byte map_bits = 0;
			byte log_X = MapLogX() - 6; // substraction is required to make the minimal size (64) zero based
			byte log_Y = MapLogY() - 6;
			byte max_edge = max(log_X, log_Y);

			if (log_X == log_Y) { // we have a squared map, since both edges are identical
				SetBit(map_bits ,0);
			} else {
				if (max_edge == log_Y) SetBit(map_bits, 1); // edge Y been the biggest, mark it
			}

			return (map_bits << 24) | (min(log_X, log_Y) << 20) | (max_edge << 16) |
				(log_X << 12) | (log_Y << 8) | (log_X + log_Y);
		}

		default:
			grfmsg(2, "ParamSet: Unknown Patch variable 0x%02X.", param);
			return 0;
	}
}


static uint32 PerformGRM(uint32 *grm, uint16 num_ids, uint16 count, uint8 op, uint8 target, const char *type)
{
	uint start = 0;
	uint size  = 0;

	if (op == 6) {
		/* Return GRFID of set that reserved ID */
		return grm[_cur_grffile->param[target]];
	}

	/* With an operation of 2 or 3, we want to reserve a specific block of IDs */
	if (op == 2 || op == 3) start = _cur_grffile->param[target];

	for (uint i = start; i < num_ids; i++) {
		if (grm[i] == 0) {
			size++;
		} else {
			if (op == 2 || op == 3) break;
			start = i + 1;
			size = 0;
		}

		if (size == count) break;
	}

	if (size == count) {
		/* Got the slot... */
		if (op == 0 || op == 3) {
			grfmsg(2, "ParamSet: GRM: Reserving %d %s at %d", count, type, start);
			for (uint i = 0; i < count; i++) grm[start + i] = _cur_grffile->grfid;
		}
		return start;
	}

	/* Unable to allocate */
	if (op != 4 && op != 5) {
		/* Deactivate GRF */
		grfmsg(0, "ParamSet: GRM: Unable to allocate %d %s, deactivating", count, type);
		_cur_grfconfig->status = GCS_DISABLED;
		ClearTemporaryNewGRFData();
		_skip_sprites = -1;
		return UINT_MAX;
	}

	grfmsg(1, "ParamSet: GRM: Unable to allocate %d %s", count, type);
	return UINT_MAX;
}


/* Action 0x0D */
static void ParamSet(byte *buf, size_t len)
{
	/* <0D> <target> <operation> <source1> <source2> [<data>]
	 *
	 * B target        parameter number where result is stored
	 * B operation     operation to perform, see below
	 * B source1       first source operand
	 * B source2       second source operand
	 * D data          data to use in the calculation, not necessary
	 *                 if both source1 and source2 refer to actual parameters
	 *
	 * Operations
	 * 00      Set parameter equal to source1
	 * 01      Addition, source1 + source2
	 * 02      Subtraction, source1 - source2
	 * 03      Unsigned multiplication, source1 * source2 (both unsigned)
	 * 04      Signed multiplication, source1 * source2 (both signed)
	 * 05      Unsigned bit shift, source1 by source2 (source2 taken to be a
	 *         signed quantity; left shift if positive and right shift if
	 *         negative, source1 is unsigned)
	 * 06      Signed bit shift, source1 by source2
	 *         (source2 like in 05, and source1 as well)
	 */

	if (!check_length(len, 5, "ParamSet")) return;
	buf++;
	uint8 target = grf_load_byte(&buf);
	uint8 oper   = grf_load_byte(&buf);
	uint32 src1  = grf_load_byte(&buf);
	uint32 src2  = grf_load_byte(&buf);

	uint32 data = 0;
	if (len >= 8) data = grf_load_dword(&buf);

	/* You can add 80 to the operation to make it apply only if the target
	 * is not defined yet.  In this respect, a parameter is taken to be
	 * defined if any of the following applies:
	 * - it has been set to any value in the newgrf(w).cfg parameter list
	 * - it OR A PARAMETER WITH HIGHER NUMBER has been set to any value by
	 *   an earlier action D */
	if (HasBit(oper, 7)) {
		if (target < 0x80 && target < _cur_grffile->param_end) {
			grfmsg(7, "ParamSet: Param %u already defined, skipping", target);
			return;
		}

		oper = GB(oper, 0, 7);
	}

	if (src2 == 0xFE) {
		if (GB(data, 0, 8) == 0xFF) {
			if (data == 0x0000FFFF) {
				/* Patch variables */
				src1 = GetPatchVariable(src1);
			} else {
				/* GRF Resource Management */
				uint8  op      = src1;
				uint8  feature = GB(data, 8, 8);
				uint16 count   = GB(data, 16, 16);

				if (_cur_stage == GLS_RESERVE) {
					if (feature == 0x08) {
						/* General sprites */
						if (op == 0) {
							/* Check if the allocated sprites will fit below the original sprite limit */
							if (_cur_spriteid + count >= 16384) {
								grfmsg(0, "ParamSet: GRM: Unable to allocate %d sprites; try changing NewGRF order", count);
								_cur_grfconfig->status = GCS_DISABLED;
								ClearTemporaryNewGRFData();
								_skip_sprites = -1;
								return;
							}

							/* Reserve space at the current sprite ID */
							grfmsg(4, "ParamSet: GRM: Allocated %d sprites at %d", count, _cur_spriteid);
							_grm_sprites[GRFLocation(_cur_grffile->grfid, _nfo_line)] = _cur_spriteid;
							_cur_spriteid += count;
						}
					}
					/* Ignore GRM result during reservation */
					src1 = 0;
				} else if (_cur_stage == GLS_ACTIVATION) {
					switch (feature) {
						case 0x00: // Trains
						case 0x01: // Road Vehicles
						case 0x02: // Ships
						case 0x03: // Aircraft
							if (!_settings_game.vehicle.dynamic_engines) {
								src1 = PerformGRM(&_grm_engines[_engine_offsets[feature]], _engine_counts[feature], count, op, target, "vehicles");
								if (_skip_sprites == -1) return;
							} else {
								// GRM does not apply for dynamic engine allocation.
								switch (op) {
									case 2:
									case 3:
										src1 = _cur_grffile->param[target];
										break;

									default:
										src1 = 0;
										break;
								}
							}
							break;

						case 0x08: // General sprites
							switch (op) {
								case 0:
									/* Return space reserved during reservation stage */
									src1 = _grm_sprites[GRFLocation(_cur_grffile->grfid, _nfo_line)];
									grfmsg(4, "ParamSet: GRM: Using pre-allocated sprites at %d", src1);
									break;

								case 1:
									src1 = _cur_spriteid;
									break;

								default:
									grfmsg(1, "ParamSet: GRM: Unsupported operation %d for general sprites", op);
									return;
							}
							break;

						case 0x0B: // Cargo
							/* There are two ranges: one for cargo IDs and one for cargo bitmasks */
							src1 = PerformGRM(_grm_cargos, NUM_CARGO * 2, count, op, target, "cargos");
							if (_skip_sprites == -1) return;
							break;

						default: grfmsg(1, "ParamSet: GRM: Unsupported feature 0x%X", feature); return;
					}
				} else {
					/* Ignore GRM during initialization */
					src1 = 0;
				}
			}
		} else {
			/* Read another GRF File's parameter */
			const GRFFile *file = GetFileByGRFID(data);
			GRFConfig *c = GetGRFConfig(data);
			if (c != NULL && HasBit(c->status, GCF_STATIC) && !HasBit(_cur_grfconfig->status, GCF_STATIC) && _networking) {
				/* Disable the read GRF if it is a static NewGRF. */
				DisableStaticNewGRFInfluencingNonStaticNewGRFs(c);
				src1 = 0;
			} else if (file == NULL || src1 >= file->param_end || (c != NULL && c->status == GCS_DISABLED)) {
				src1 = 0;
			} else {
				src1 = file->param[src1];
			}
		}
	} else {
		/* The source1 and source2 operands refer to the grf parameter number
		 * like in action 6 and 7.  In addition, they can refer to the special
		 * variables available in action 7, or they can be FF to use the value
		 * of <data>.  If referring to parameters that are undefined, a value
		 * of 0 is used instead.  */
		src1 = (src1 == 0xFF) ? data : GetParamVal(src1, NULL);
		src2 = (src2 == 0xFF) ? data : GetParamVal(src2, NULL);
	}

	/* TODO: You can access the parameters of another GRF file by using
	 * source2=FE, source1=the other GRF's parameter number and data=GRF
	 * ID.  This is only valid with operation 00 (set).  If the GRF ID
	 * cannot be found, a value of 0 is used for the parameter value
	 * instead. */

	uint32 res;
	switch (oper) {
		case 0x00:
			res = src1;
			break;

		case 0x01:
			res = src1 + src2;
			break;

		case 0x02:
			res = src1 - src2;
			break;

		case 0x03:
			res = src1 * src2;
			break;

		case 0x04:
			res = (int32)src1 * (int32)src2;
			break;

		case 0x05:
			if ((int32)src2 < 0) {
				res = src1 >> -(int32)src2;
			} else {
				res = src1 << src2;
			}
			break;

		case 0x06:
			if ((int32)src2 < 0) {
				res = (int32)src1 >> -(int32)src2;
			} else {
				res = (int32)src1 << src2;
			}
			break;

		case 0x07: // Bitwise AND
			res = src1 & src2;
			break;

		case 0x08: // Bitwise OR
			res = src1 | src2;
			break;

		case 0x09: // Unsigned division
			if (src2 == 0) {
				res = src1;
			} else {
				res = src1 / src2;
			}
			break;

		case 0x0A: // Signed divison
			if (src2 == 0) {
				res = src1;
			} else {
				res = (int32)src1 / (int32)src2;
			}
			break;

		case 0x0B: // Unsigned modulo
			if (src2 == 0) {
				res = src1;
			} else {
				res = src1 % src2;
			}
			break;

		case 0x0C: // Signed modulo
			if (src2 == 0) {
				res = src1;
			} else {
				res = (int32)src1 % (int32)src2;
			}
			break;

		default: grfmsg(0, "ParamSet: Unknown operation %d, skipping", oper); return;
	}

	switch (target) {
		case 0x8E: // Y-Offset for train sprites
			_traininfo_vehicle_pitch = res;
			break;

		case 0x8F: // Rail track type cost factors
			_railtype_cost_multiplier[0] = GB(res, 0, 8);
			if (_settings_game.vehicle.disable_elrails) {
				_railtype_cost_multiplier[1] = GB(res, 0, 8);
				_railtype_cost_multiplier[2] = GB(res, 8, 8);
			} else {
				_railtype_cost_multiplier[1] = GB(res, 8, 8);
				_railtype_cost_multiplier[2] = GB(res, 16, 8);
			}
			_railtype_cost_multiplier[3] = GB(res, 16, 8);
			break;

		/* @todo implement */
		case 0x93: // Tile refresh offset to left
		case 0x94: // Tile refresh offset to right
		case 0x95: // Tile refresh offset upwards
		case 0x96: // Tile refresh offset downwards
		case 0x97: // Snow line height
		case 0x99: // Global ID offset
			grfmsg(7, "ParamSet: Skipping unimplemented target 0x%02X", target);
			break;

		case 0x9E: // Miscellaneous GRF features
			_misc_grf_features = res;
			/* Set train list engine width */
			_traininfo_vehicle_width = HasGrfMiscBit(GMB_TRAIN_WIDTH_32_PIXELS) ? 32 : 29;
			break;

		case 0x9F: // locale-dependent settings
			grfmsg(7, "ParamSet: Skipping unimplemented target 0x%02X", target);
			break;

		default:
			if (target < 0x80) {
				_cur_grffile->param[target] = res;
				if (target + 1U > _cur_grffile->param_end) _cur_grffile->param_end = target + 1;
			} else {
				grfmsg(7, "ParamSet: Skipping unknown target 0x%02X", target);
			}
			break;
	}
}

/* Action 0x0E (GLS_SAFETYSCAN) */
static void SafeGRFInhibit(byte *buf, size_t len)
{
	/* <0E> <num> <grfids...>
	 *
	 * B num           Number of GRFIDs that follow
	 * D grfids        GRFIDs of the files to deactivate */

	if (!check_length(len, 2, "GRFInhibit")) return;
	buf++;
	uint8 num = grf_load_byte(&buf);
	if (!check_length(len, 2 + 4 * num, "GRFInhibit")) return;

	for (uint i = 0; i < num; i++) {
		uint32 grfid = grf_load_dword(&buf);

		/* GRF is unsafe it if tries to deactivate other GRFs */
		if (grfid != _cur_grfconfig->grfid) {
			SetBit(_cur_grfconfig->flags, GCF_UNSAFE);

			/* Skip remainder of GRF */
			_skip_sprites = -1;

			return;
		}
	}
}

/* Action 0x0E */
static void GRFInhibit(byte *buf, size_t len)
{
	/* <0E> <num> <grfids...>
	 *
	 * B num           Number of GRFIDs that follow
	 * D grfids        GRFIDs of the files to deactivate */

	if (!check_length(len, 2, "GRFInhibit")) return;
	buf++;
	uint8 num = grf_load_byte(&buf);
	if (!check_length(len, 2 + 4 * num, "GRFInhibit")) return;

	for (uint i = 0; i < num; i++) {
		uint32 grfid = grf_load_dword(&buf);
		GRFConfig *file = GetGRFConfig(grfid);

		/* Unset activation flag */
		if (file != NULL && file != _cur_grfconfig) {
			grfmsg(2, "GRFInhibit: Deactivating file '%s'", file->filename);
			file->status = GCS_DISABLED;
		}
	}
}

/* Action 0x0F */
static void FeatureTownName(byte *buf, size_t len)
{
	/* <0F> <id> <style-name> <num-parts> <parts>
	 *
	 * B id          ID of this definition in bottom 7 bits (final definition if bit 7 set)
	 * V style-name  Name of the style (only for final definition)
	 * B num-parts   Number of parts in this definition
	 * V parts       The parts */

	if (!check_length(len, 1, "FeatureTownName: definition ID")) return;
	buf++; len--;

	uint32 grfid = _cur_grffile->grfid;

	GRFTownName *townname = AddGRFTownName(grfid);

	byte id = grf_load_byte(&buf);
	len--;
	grfmsg(6, "FeatureTownName: definition 0x%02X", id & 0x7F);

	if (HasBit(id, 7)) {
		/* Final definition */
		ClrBit(id, 7);
		bool new_scheme = _cur_grffile->grf_version >= 7;

		if (!check_length(len, 1, "FeatureTownName: lang_id")) return;
		byte lang = grf_load_byte(&buf);
		len--;

		byte nb_gen = townname->nb_gen;
		do {
			ClrBit(lang, 7);

			if (!check_length(len, 1, "FeatureTownName: style name")) return;
			const char *name = grf_load_string(&buf, len);
			len -= strlen(name) + 1;
			grfmsg(6, "FeatureTownName: lang 0x%X -> '%s'", lang, TranslateTTDPatchCodes(grfid, name));

			townname->name[nb_gen] = AddGRFString(grfid, id, lang, new_scheme, name, STR_UNDEFINED);

			if (!check_length(len, 1, "FeatureTownName: lang_id")) return;
			lang = grf_load_byte(&buf);
			len--;
		} while (lang != 0);
		townname->id[nb_gen] = id;
		townname->nb_gen++;
	}

	if (!check_length(len, 1, "FeatureTownName: number of parts")) return;
	byte nb = grf_load_byte(&buf);
	len--;
	grfmsg(6, "FeatureTownName: %d parts", nb, nb);

	townname->nbparts[id] = nb;
	townname->partlist[id] = CallocT<NamePartList>(nb);

	for (int i = 0; i < nb; i++) {
		if (!check_length(len, 3, "FeatureTownName: parts header")) return;
		byte nbtext =  grf_load_byte(&buf);
		townname->partlist[id][i].bitstart  = grf_load_byte(&buf);
		townname->partlist[id][i].bitcount  = grf_load_byte(&buf);
		townname->partlist[id][i].maxprob   = 0;
		townname->partlist[id][i].partcount = nbtext;
		townname->partlist[id][i].parts     = CallocT<NamePart>(nbtext);
		len -= 3;
		grfmsg(6, "FeatureTownName: part %d contains %d texts and will use GB(seed, %d, %d)", i, nbtext, townname->partlist[id][i].bitstart, townname->partlist[id][i].bitcount);

		for (int j = 0; j < nbtext; j++) {
			if (!check_length(len, 2, "FeatureTownName: part")) return;
			byte prob = grf_load_byte(&buf);
			len--;

			if (HasBit(prob, 7)) {
				byte ref_id = grf_load_byte(&buf);
				len--;

				if (townname->nbparts[ref_id] == 0) {
					grfmsg(0, "FeatureTownName: definition 0x%02X doesn't exist, deactivating", ref_id);
					DelGRFTownName(grfid);
					_cur_grfconfig->status = GCS_DISABLED;
					ClearTemporaryNewGRFData();
					_skip_sprites = -1;
					return;
				}

				grfmsg(6, "FeatureTownName: part %d, text %d, uses intermediate definition 0x%02X (with probability %d)", i, j, ref_id, prob & 0x7F);
				townname->partlist[id][i].parts[j].data.id = ref_id;
			} else {
				const char *text = grf_load_string(&buf, len);
				len -= strlen(text) + 1;
				townname->partlist[id][i].parts[j].data.text = TranslateTTDPatchCodes(grfid, text);
				grfmsg(6, "FeatureTownName: part %d, text %d, '%s' (with probability %d)", i, j, townname->partlist[id][i].parts[j].data.text, prob);
			}
			townname->partlist[id][i].parts[j].prob = prob;
			townname->partlist[id][i].maxprob += GB(prob, 0, 7);
		}
		grfmsg(6, "FeatureTownName: part %d, total probability %d", i, townname->partlist[id][i].maxprob);
	}
}

/* Action 0x10 */
static void DefineGotoLabel(byte *buf, size_t len)
{
	/* <10> <label> [<comment>]
	 *
	 * B label      The label to define
	 * V comment    Optional comment - ignored */

	if (!check_length(len, 1, "DefineGotoLabel")) return;
	buf++; len--;

	GRFLabel *label = MallocT<GRFLabel>(1);
	label->label    = grf_load_byte(&buf);
	label->nfo_line = _nfo_line;
	label->pos      = FioGetPos();
	label->next     = NULL;

	/* Set up a linked list of goto targets which we will search in an Action 0x7/0x9 */
	if (_cur_grffile->label == NULL) {
		_cur_grffile->label = label;
	} else {
		/* Attach the label to the end of the list */
		GRFLabel *l;
		for (l = _cur_grffile->label; l->next != NULL; l = l->next) {}
		l->next = label;
	}

	grfmsg(2, "DefineGotoLabel: GOTO target with label 0x%02X", label->label);
}

/* Action 0x11 */
static void GRFSound(byte *buf, size_t len)
{
	/* <11> <num>
	 *
	 * W num      Number of sound files that follow */

	if (!check_length(len, 1, "GRFSound")) return;
	buf++;
	uint16 num = grf_load_word(&buf);

	_grf_data_blocks = num;
	_grf_data_type   = GDT_SOUND;

	if (_cur_grffile->sound_offset == 0) _cur_grffile->sound_offset = GetNumSounds();
}

/* Action 0x11 (SKIP) */
static void SkipAct11(byte *buf, size_t len)
{
	/* <11> <num>
	 *
	 * W num      Number of sound files that follow */

	if (!check_length(len, 1, "SkipAct11")) return;
	buf++;
	_skip_sprites = grf_load_word(&buf);

	grfmsg(3, "SkipAct11: Skipping %d sprites", _skip_sprites);
}

static void ImportGRFSound(byte *buf, int len)
{
	const GRFFile *file;
	FileEntry *se = AllocateFileEntry();
	uint32 grfid = grf_load_dword(&buf);
	uint16 sound = grf_load_word(&buf);

	file = GetFileByGRFID(grfid);
	if (file == NULL || file->sound_offset == 0) {
		grfmsg(1, "ImportGRFSound: Source file not available");
		return;
	}

	if (file->sound_offset + sound >= GetNumSounds()) {
		grfmsg(1, "ImportGRFSound: Sound effect %d is invalid", sound);
		return;
	}

	grfmsg(2, "ImportGRFSound: Copying sound %d (%d) from file %X", sound, file->sound_offset + sound, grfid);

	*se = *GetSound(file->sound_offset + sound);

	/* Reset volume and priority, which TTDPatch doesn't copy */
	se->volume   = 128;
	se->priority = 0;
}

/* 'Action 0xFE' */
static void GRFImportBlock(byte *buf, int len)
{
	if (_grf_data_blocks == 0) {
		grfmsg(2, "GRFImportBlock: Unexpected import block, skipping");
		return;
	}

	buf++;

	_grf_data_blocks--;

	/* XXX 'Action 0xFE' isn't really specified. It is only mentioned for
	 * importing sounds, so this is probably all wrong... */
	if (grf_load_byte(&buf) != _grf_data_type) {
		grfmsg(1, "GRFImportBlock: Import type mismatch");
	}

	switch (_grf_data_type) {
		case GDT_SOUND: ImportGRFSound(buf, len - 1); break;
		default: NOT_REACHED(); break;
	}
}

static void LoadGRFSound(byte *buf, int len)
{
	byte *buf_start = buf;

	/* Allocate a sound entry. This is done even if the data is not loaded
	 * so that the indices used elsewhere are still correct. */
	FileEntry *se = AllocateFileEntry();

	if (grf_load_dword(&buf) != BSWAP32('RIFF')) {
		grfmsg(1, "LoadGRFSound: Missing RIFF header");
		return;
	}

	/* Size of file -- we ignore this */
	grf_load_dword(&buf);

	if (grf_load_dword(&buf) != BSWAP32('WAVE')) {
		grfmsg(1, "LoadGRFSound: Invalid RIFF type");
		return;
	}

	for (;;) {
		uint32 tag  = grf_load_dword(&buf);
		uint32 size = grf_load_dword(&buf);

		switch (tag) {
			case ' tmf': // 'fmt '
				/* Audio format, must be 1 (PCM) */
				if (grf_load_word(&buf) != 1) {
					grfmsg(1, "LoadGRFSound: Invalid audio format");
					return;
				}
				se->channels = grf_load_word(&buf);
				se->rate = grf_load_dword(&buf);
				grf_load_dword(&buf);
				grf_load_word(&buf);
				se->bits_per_sample = grf_load_word(&buf);

				/* Consume any extra bytes */
				for (; size > 16; size--) grf_load_byte(&buf);
				break;

			case 'atad': // 'data'
				se->file_size   = size;
				se->file_offset = FioGetPos() - (len - (buf - buf_start)) + 1;
				se->file_slot   = _file_index;

				/* Set default volume and priority */
				se->volume = 0x80;
				se->priority = 0;

				grfmsg(2, "LoadGRFSound: channels %u, sample rate %u, bits per sample %u, length %u", se->channels, se->rate, se->bits_per_sample, size);
				return;

			default:
				se->file_size = 0;
				return;
		}
	}
}

/* Action 0x12 */
static void LoadFontGlyph(byte *buf, size_t len)
{
	/* <12> <num_def> <font_size> <num_char> <base_char>
	 *
	 * B num_def      Number of definitions
	 * B font_size    Size of font (0 = normal, 1 = small, 2 = large)
	 * B num_char     Number of consecutive glyphs
	 * W base_char    First character index */

	buf++; len--;
	if (!check_length(len, 1, "LoadFontGlyph")) return;

	uint8 num_def = grf_load_byte(&buf);

	if (!check_length(len, 1 + num_def * 4, "LoadFontGlyph")) return;

	for (uint i = 0; i < num_def; i++) {
		FontSize size    = (FontSize)grf_load_byte(&buf);
		uint8  num_char  = grf_load_byte(&buf);
		uint16 base_char = grf_load_word(&buf);

		grfmsg(7, "LoadFontGlyph: Loading %u glyph(s) at 0x%04X for size %u", num_char, base_char, size);

		for (uint c = 0; c < num_char; c++) {
			SetUnicodeGlyph(size, base_char + c, _cur_spriteid);
			_nfo_line++;
			LoadNextSprite(_cur_spriteid++, _file_index, _nfo_line);
		}
	}
}

/* Action 0x12 (SKIP) */
static void SkipAct12(byte *buf, size_t len)
{
	/* <12> <num_def> <font_size> <num_char> <base_char>
	 *
	 * B num_def      Number of definitions
	 * B font_size    Size of font (0 = normal, 1 = small, 2 = large)
	 * B num_char     Number of consecutive glyphs
	 * W base_char    First character index */

	buf++; len--;
	if (!check_length(len, 1, "SkipAct12")) return;
	uint8 num_def = grf_load_byte(&buf);

	if (!check_length(len, 1 + num_def * 4, "SkipAct12")) return;

	for (uint i = 0; i < num_def; i++) {
		/* Ignore 'size' byte */
		grf_load_byte(&buf);

		/* Sum up number of characters */
		_skip_sprites += grf_load_byte(&buf);

		/* Ignore 'base_char' word */
		grf_load_word(&buf);
	}

	grfmsg(3, "SkipAct12: Skipping %d sprites", _skip_sprites);
}

/* Action 0x13 */
static void TranslateGRFStrings(byte *buf, size_t len)
{
	/* <13> <grfid> <num-ent> <offset> <text...>
	 *
	 * 4*B grfid     The GRFID of the file whose texts are to be translated
	 * B   num-ent   Number of strings
	 * W   offset    First text ID
	 * S   text...   Zero-terminated strings */

	buf++; len--;
	if (!check_length(len, 7, "TranslateGRFString")) return;

	uint32 grfid = grf_load_dword(&buf);
	const GRFConfig *c = GetGRFConfig(grfid);
	if (c == NULL || (c->status != GCS_INITIALISED && c->status != GCS_ACTIVATED)) {
		grfmsg(7, "TranslateGRFStrings: GRFID 0x%08x unknown, skipping action 13", BSWAP32(grfid));
		return;
	}

	if (c->status == GCS_INITIALISED) {
		/* If the file is not active but will be activated later, give an error
		 * and disable this file. */
		GRFError *error = CallocT<GRFError>(1);

		char tmp[256];
		GetString(tmp, STR_NEWGRF_ERROR_AFTER_TRANSLATED_FILE, lastof(tmp));
		error->data = strdup(tmp);

		error->message  = STR_NEWGRF_ERROR_LOAD_AFTER;
		error->severity = STR_NEWGRF_ERROR_MSG_FATAL;

		if (_cur_grfconfig->error != NULL) free(_cur_grfconfig->error);
		_cur_grfconfig->error = error;

		_cur_grfconfig->status = GCS_DISABLED;
		ClearTemporaryNewGRFData();
		_skip_sprites = -1;
		return;
	}

	byte num_strings = grf_load_byte(&buf);
	uint16 first_id  = grf_load_word(&buf);

	if (!((first_id >= 0xD000 && first_id + num_strings <= 0xD3FF) || (first_id >= 0xDC00 && first_id + num_strings <= 0xDCFF))) {
		grfmsg(7, "TranslateGRFStrings: Attempting to set out-of-range string IDs in action 13 (first: 0x%4X, number: 0x%2X)", first_id, num_strings);
		return;
	}

	len -= 7;

	for (uint i = 0; i < num_strings && len > 0; i++) {
		const char *string   = grf_load_string(&buf, len);
		size_t string_length = strlen(string) + 1;

		len -= (int)string_length;

		if (string_length == 1) {
			grfmsg(7, "TranslateGRFString: Ignoring empty string.");
			continue;
		}

		/* Since no language id is supplied this string has to be added as a
		 * generic string, thus the language id of 0x7F. For this to work
		 * new_scheme has to be true as well. A language id of 0x7F will be
		 * overridden by a non-generic id, so this will not change anything if
		 * a string has been provided specifically for this language. */
		AddGRFString(grfid, first_id + i, 0x7F, true, string, STR_UNDEFINED);
	}
}

/* 'Action 0xFF' */
static void GRFDataBlock(byte *buf, int len)
{
	if (_grf_data_blocks == 0) {
		grfmsg(2, "GRFDataBlock: unexpected data block, skipping");
		return;
	}

	buf++;
	uint8 name_len = grf_load_byte(&buf);
	const char *name = (const char *)buf;
	buf += name_len + 1;

	grfmsg(2, "GRFDataBlock: block name '%s'...", name);

	_grf_data_blocks--;

	switch (_grf_data_type) {
		case GDT_SOUND: LoadGRFSound(buf, len - name_len - 2); break;
		default: NOT_REACHED(); break;
	}
}


/* Used during safety scan on unsafe actions */
static void GRFUnsafe(byte *buf, size_t len)
{
	SetBit(_cur_grfconfig->flags, GCF_UNSAFE);

	/* Skip remainder of GRF */
	_skip_sprites = -1;
}


static void InitializeGRFSpecial()
{
	_ttdpatch_flags[0] =  ((_settings_game.station.always_small_airport ? 1 : 0) << 0x0C)  // keepsmallairport
	                   |                                                 (1 << 0x0D)  // newairports
	                   |                                                 (1 << 0x0E)  // largestations
	                   |      ((_settings_game.construction.longbridges ? 1 : 0) << 0x0F)  // longbridges
	                   |                                                 (0 << 0x10)  // loadtime
	                   |                                                 (1 << 0x12)  // presignals
	                   |                                                 (1 << 0x13)  // extpresignals
	                   | ((_settings_game.vehicle.never_expire_vehicles ? 1 : 0) << 0x16)  // enginespersist
	                   |                                                 (1 << 0x1B)  // multihead
	                   |                                                 (1 << 0x1D)  // lowmemory
	                   |                                                 (1 << 0x1E); // generalfixes

	_ttdpatch_flags[1] =   ((_settings_game.economy.station_noise_level ? 1 : 0) << 0x07)  // moreairports - based on units of noise
	                   |        ((_settings_game.vehicle.mammoth_trains ? 1 : 0) << 0x08)  // mammothtrains
	                   |                                                 (1 << 0x09)  // trainrefit
	                   |                                                 (0 << 0x0B)  // subsidiaries
	                   |         ((_settings_game.order.gradual_loading ? 1 : 0) << 0x0C)  // gradualloading
	                   |                                                 (1 << 0x12)  // unifiedmaglevmode - set bit 0 mode. Not revelant to OTTD
	                   |                                                 (1 << 0x13)  // unifiedmaglevmode - set bit 1 mode
	                   |                                                 (1 << 0x14)  // bridgespeedlimits
	                   |                                                 (1 << 0x16)  // eternalgame
	                   |                                                 (1 << 0x17)  // newtrains
	                   |                                                 (1 << 0x18)  // newrvs
	                   |                                                 (1 << 0x19)  // newships
	                   |                                                 (1 << 0x1A)  // newplanes
	                   |      ((_settings_game.construction.signal_side ? 1 : 0) << 0x1B)  // signalsontrafficside
	                   |       ((_settings_game.vehicle.disable_elrails ? 0 : 1) << 0x1C); // electrifiedrailway

	_ttdpatch_flags[2] =                                                 (1 << 0x01)  // loadallgraphics - obsolote
	                   |                                                 (1 << 0x03)  // semaphores
	                   |                                                 (0 << 0x0B)  // enhancedgui
	                   |                                                 (0 << 0x0C)  // newagerating
	                   |  ((_settings_game.construction.build_on_slopes ? 1 : 0) << 0x0D)  // buildonslopes
	                   |                                                 (1 << 0x0E)  // fullloadany
	                   |                                                 (1 << 0x0F)  // planespeed
	                   |                                                 (0 << 0x10)  // moreindustriesperclimate - obsolete
	                   |                                                 (0 << 0x11)  // moretoylandfeatures
	                   |                                                 (1 << 0x12)  // newstations
	                   |                                                 (1 << 0x13)  // tracktypecostdiff
	                   |                                                 (1 << 0x14)  // manualconvert
	                   |  ((_settings_game.construction.build_on_slopes ? 1 : 0) << 0x15)  // buildoncoasts
	                   |                                                 (1 << 0x16)  // canals
	                   |                                                 (1 << 0x17)  // newstartyear
	                   |    ((_settings_game.vehicle.freight_trains > 1 ? 1 : 0) << 0x18)  // freighttrains
	                   |                                                 (1 << 0x19)  // newhouses
	                   |                                                 (1 << 0x1A)  // newbridges
	                   |                                                 (1 << 0x1B)  // newtownnames
	                   |                                                 (1 << 0x1C)  // moreanimation
	                   |    ((_settings_game.vehicle.wagon_speed_limits ? 1 : 0) << 0x1D)  // wagonspeedlimits
	                   |                                                 (1 << 0x1E)  // newshistory
	                   |                                                 (0 << 0x1F); // custombridgeheads

	_ttdpatch_flags[3] =                                                 (0 << 0x00)  // newcargodistribution
	                   |                                                 (1 << 0x01)  // windowsnap
	                   |                                                 (0 << 0x02)  // townbuildnoroad
	                   |                                                 (0 << 0x03)  // pathbasedsignalling. To enable if ever pbs is back
	                   |                                                 (0 << 0x04)  // aichoosechance
	                   |                                                 (1 << 0x05)  // resolutionwidth
	                   |                                                 (1 << 0x06)  // resolutionheight
	                   |                                                 (1 << 0x07)  // newindustries
	                   |           ((_settings_game.order.improved_load ? 1 : 0) << 0x08)  // fifoloading
	                   |                                                 (0 << 0x09)  // townroadbranchprob
	                   |                                                 (0 << 0x0A)  // tempsnowline
	                   |                                                 (1 << 0x0B)  // newcargo
	                   |                                                 (1 << 0x0C)  // enhancemultiplayer
	                   |                                                 (1 << 0x0D)  // onewayroads
	                   |   ((_settings_game.station.nonuniform_stations ? 1 : 0) << 0x0E)  // irregularstations
	                   |                                                 (1 << 0x0F)  // statistics
	                   |                                                 (1 << 0x10)  // newsounds
	                   |                                                 (1 << 0x11)  // autoreplace
	                   |                                                 (1 << 0x12)  // autoslope
	                   |                                                 (0 << 0x13)  // followvehicle
	                   |                                                 (1 << 0x14)  // trams
	                   |                                                 (0 << 0x15)  // enhancetunnels
	                   |                                                 (1 << 0x16)  // shortrvs
	                   |                                                 (1 << 0x17)  // articulatedrvs
	                   |       ((_settings_game.vehicle.dynamic_engines ? 1 : 0) << 0x18)  // dynamic engines
	                   |                                                 (1 << 0x1E); // variablerunningcosts
}

static void ResetCustomStations()
{
	for (GRFFile *file = _first_grffile; file != NULL; file = file->next) {
		if (file->stations == NULL) continue;
		for (uint i = 0; i < MAX_STATIONS; i++) {
			if (file->stations[i] == NULL) continue;
			StationSpec *statspec = file->stations[i];

			/* Release renderdata, if it wasn't copied from another custom station spec  */
			if (!statspec->copied_renderdata) {
				for (uint t = 0; t < statspec->tiles; t++) {
					free((void*)statspec->renderdata[t].seq);
				}
				free(statspec->renderdata);
			}

			/* Release platforms and layouts */
			if (!statspec->copied_layouts) {
				for (uint l = 0; l < statspec->lengths; l++) {
					for (uint p = 0; p < statspec->platforms[l]; p++) {
						free(statspec->layouts[l][p]);
					}
					free(statspec->layouts[l]);
				}
				free(statspec->layouts);
				free(statspec->platforms);
			}

			/* Release this station */
			free(statspec);
		}

		/* Free and reset the station data */
		free(file->stations);
		file->stations = NULL;
	}
}

static void ResetCustomHouses()
{
	GRFFile *file;
	uint i;

	for (file = _first_grffile; file != NULL; file = file->next) {
		if (file->housespec == NULL) continue;
		for (i = 0; i < HOUSE_MAX; i++) {
			free(file->housespec[i]);
		}

		free(file->housespec);
		file->housespec = NULL;
	}
}

static void ResetCustomIndustries()
{
	GRFFile *file;

	for (file = _first_grffile; file != NULL; file = file->next) {
		uint i;
		/* We are verifiying both tiles and industries specs loaded from the grf file
		 * First, let's deal with industryspec */
		if (file->industryspec != NULL) {

			for (i = 0; i < NUM_INDUSTRYTYPES; i++) {
				IndustrySpec *ind = file->industryspec[i];

				if (ind != NULL) {
					/* We need to remove the sounds array */
					if (HasBit(ind->cleanup_flag, CLEAN_RANDOMSOUNDS)) {
						free((void*)ind->random_sounds);
					}

					/* We need to remove the tiles layouts */
					if (HasBit(ind->cleanup_flag, CLEAN_TILELSAYOUT) && ind->table != NULL) {
						for (int j = 0; j < ind->num_table; j++) {
							/* remove the individual layouts */
							if (ind->table[j] != NULL) {
								free((IndustryTileTable*)ind->table[j]);
							}
						}
						/* remove the layouts pointers */
						free((IndustryTileTable**)ind->table);
						ind->table = NULL;
					}

					free(ind);
					ind = NULL;
				}
			}

			free(file->industryspec);
			file->industryspec = NULL;
		}

		if (file->indtspec != NULL) {
			for (i = 0; i < NUM_INDUSTRYTILES; i++) {
				if (file->indtspec[i] != NULL) {
					free(file->indtspec[i]);
					file->indtspec[i] = NULL;
				}
			}

			free(file->indtspec);
			file->indtspec = NULL;
		}
	}
}

static void ResetNewGRF()
{
	GRFFile *next;

	for (GRFFile *f = _first_grffile; f != NULL; f = next) {
		next = f->next;

		free(f->filename);
		free(f->cargo_list);
		free(f);
	}

	_first_grffile = NULL;
	_cur_grffile   = NULL;
}

static void ResetNewGRFErrors()
{
	for (GRFConfig *c = _grfconfig; c != NULL; c = c->next) {
		if (!HasBit(c->flags, GCF_COPY) && c->error != NULL) {
			free(c->error->custom_message);
			free(c->error->data);
			free(c->error);
			c->error = NULL;
		}
	}
}

/**
 * Reset all NewGRF loaded data
 * TODO
 */
static void ResetNewGRFData()
{
	CleanUpStrings();
	CleanUpGRFTownNames();

	/* Copy/reset original engine info data */
	SetupEngines();

	/* Copy/reset original bridge info data */
	ResetBridges();

	/* Allocate temporary refit/cargo class data */
	_gted = CallocT<GRFTempEngineData>(GetEnginePoolSize());

	/* Reset GRM reservations */
	memset(&_grm_engines, 0, sizeof(_grm_engines));
	memset(&_grm_cargos, 0, sizeof(_grm_cargos));

	/* Reset generic feature callback lists */
	ResetGenericCallbacks();

	/* Reset price base data */
	ResetPriceBaseMultipliers();

	/* Reset the curencies array */
	ResetCurrencies();

	/* Reset the house array */
	ResetCustomHouses();
	ResetHouses();

	/* Reset the industries structures*/
	ResetCustomIndustries();
	ResetIndustries();

	/* Reset station classes */
	ResetStationClasses();
	ResetCustomStations();

	/* Reset canal sprite groups and flags */
	memset(_water_feature, 0, sizeof(_water_feature));

	/* Reset the snowline table. */
	ClearSnowLine();

	/* Reset NewGRF files */
	ResetNewGRF();

	/* Reset NewGRF errors. */
	ResetNewGRFErrors();

	/* Set up the default cargo types */
	SetupCargoForClimate(_settings_game.game_creation.landscape);

	/* Reset misc GRF features and train list display variables */
	_misc_grf_features = 0;
	_traininfo_vehicle_pitch = 0;
	_traininfo_vehicle_width = 29;

	/* Reset track cost multipliers. */
	memcpy(&_railtype_cost_multiplier, &_default_railtype_cost_multiplier, sizeof(_default_railtype_cost_multiplier));

	_loaded_newgrf_features.has_2CC           = false;
	_loaded_newgrf_features.has_newhouses     = false;
	_loaded_newgrf_features.has_newindustries = false;
	_loaded_newgrf_features.shore             = SHORE_REPLACE_NONE;

	/* Clear all GRF overrides */
	_grf_id_overrides.clear();

	InitializeSoundPool();
	InitializeSpriteGroupPool();
}

static void BuildCargoTranslationMap()
{
	memset(_cur_grffile->cargo_map, 0xFF, sizeof(_cur_grffile->cargo_map));

	for (CargoID c = 0; c < NUM_CARGO; c++) {
		const CargoSpec *cs = GetCargo(c);
		if (!cs->IsValid()) continue;

		if (_cur_grffile->cargo_max == 0) {
			/* Default translation table, so just a straight mapping to bitnum */
			_cur_grffile->cargo_map[c] = cs->bitnum;
		} else {
			/* Check the translation table for this cargo's label */
			for (uint i = 0; i < _cur_grffile->cargo_max; i++) {
				if (cs->label == _cur_grffile->cargo_list[i]) {
					_cur_grffile->cargo_map[c] = i;
					break;
				}
			}
		}
	}
}

static void InitNewGRFFile(const GRFConfig *config, int sprite_offset)
{
	GRFFile *newfile = GetFileByFilename(config->filename);
	if (newfile != NULL) {
		/* We already loaded it once. */
		newfile->sprite_offset = sprite_offset;
		_cur_grffile = newfile;
		return;
	}

	newfile = CallocT<GRFFile>(1);

	if (newfile == NULL) error ("Out of memory");

	newfile->filename = strdup(config->filename);
	newfile->sprite_offset = sprite_offset;

	/* Copy the initial parameter list */
	assert(lengthof(newfile->param) == lengthof(config->param) && lengthof(config->param) == 0x80);
	newfile->param_end = config->num_params;
	memcpy(newfile->param, config->param, sizeof(newfile->param));

	if (_first_grffile == NULL) {
		_cur_grffile = newfile;
		_first_grffile = newfile;
	} else {
		_cur_grffile->next = newfile;
		_cur_grffile = newfile;
	}
}


/** List of what cargo labels are refittable for the given the vehicle-type.
 * Only currently active labels are applied. */
static const CargoLabel _default_refitmasks_rail[] = {
	'PASS', 'COAL', 'MAIL', 'LVST', 'GOOD', 'GRAI', 'WHEA', 'MAIZ', 'WOOD',
	'IORE', 'STEL', 'VALU', 'GOLD', 'DIAM', 'PAPR', 'FOOD', 'FRUT', 'CORE',
	'WATR', 'SUGR', 'TOYS', 'BATT', 'SWET', 'TOFF', 'COLA', 'CTCD', 'BUBL',
	'PLST', 'FZDR',
	0 };

static const CargoLabel _default_refitmasks_road[] = {
	0 };

static const CargoLabel _default_refitmasks_ships[] = {
	'COAL', 'MAIL', 'LVST', 'GOOD', 'GRAI', 'WHEA', 'MAIZ', 'WOOD', 'IORE',
	'STEL', 'VALU', 'GOLD', 'DIAM', 'PAPR', 'FOOD', 'FRUT', 'CORE', 'WATR',
	'RUBR', 'SUGR', 'TOYS', 'BATT', 'SWET', 'TOFF', 'COLA', 'CTCD', 'BUBL',
	'PLST', 'FZDR',
	0 };

static const CargoLabel _default_refitmasks_aircraft[] = {
	'PASS', 'MAIL', 'GOOD', 'VALU', 'GOLD', 'DIAM', 'FOOD', 'FRUT', 'SUGR',
	'TOYS', 'BATT', 'SWET', 'TOFF', 'COLA', 'CTCD', 'BUBL', 'PLST', 'FZDR',
	0 };

static const CargoLabel *_default_refitmasks[] = {
	_default_refitmasks_rail,
	_default_refitmasks_road,
	_default_refitmasks_ships,
	_default_refitmasks_aircraft,
};


/**
 * Precalculate refit masks from cargo classes for all vehicles.
 */
static void CalculateRefitMasks()
{
	Engine *e;

	FOR_ALL_ENGINES(e) {
		EngineID engine = e->index;
		EngineInfo *ei = &e->info;
		uint32 mask = 0;
		uint32 not_mask = 0;
		uint32 xor_mask = 0;

		if (ei->refit_mask != 0) {
			const GRFFile *file = e->grffile;
			if (file != NULL && file->cargo_max != 0) {
				/* Apply cargo translation table to the refit mask */
				uint num_cargo = min(32, file->cargo_max);
				for (uint i = 0; i < num_cargo; i++) {
					if (!HasBit(ei->refit_mask, i)) continue;

					CargoID c = GetCargoIDByLabel(file->cargo_list[i]);
					if (c == CT_INVALID) continue;

					SetBit(xor_mask, c);
				}
			} else {
				/* No cargo table, so use the cargo bitnum values */
				for (CargoID c = 0; c < NUM_CARGO; c++) {
					const CargoSpec *cs = GetCargo(c);
					if (!cs->IsValid()) continue;

					if (HasBit(ei->refit_mask, cs->bitnum)) SetBit(xor_mask, c);
				}
			}
		}

		if (_gted[engine].cargo_allowed != 0) {
			/* Build up the list of cargo types from the set cargo classes. */
			for (CargoID i = 0; i < NUM_CARGO; i++) {
				const CargoSpec *cs = GetCargo(i);
				if (_gted[engine].cargo_allowed    & cs->classes) SetBit(mask,     i);
				if (_gted[engine].cargo_disallowed & cs->classes) SetBit(not_mask, i);
			}
		} else if (xor_mask == 0) {
			/* Don't apply default refit mask to wagons or engines with no capacity */
			if (e->type != VEH_TRAIN || (e->u.rail.capacity != 0 && e->u.rail.railveh_type != RAILVEH_WAGON)) {
				const CargoLabel *cl = _default_refitmasks[e->type];
				for (uint i = 0;; i++) {
					if (cl[i] == 0) break;

					CargoID cargo = GetCargoIDByLabel(cl[i]);
					if (cargo == CT_INVALID) continue;

					SetBit(xor_mask, cargo);
				}
			}
		}

		ei->refit_mask = ((mask & ~not_mask) ^ xor_mask) & _cargo_mask;

		/* Check if this engine's cargo type is valid. If not, set to the first refittable
		 * cargo type. Apparently cargo_type isn't a common property... */
		switch (e->type) {
			default: NOT_REACHED();
			case VEH_AIRCRAFT: break;
			case VEH_TRAIN: {
				RailVehicleInfo *rvi = &e->u.rail;
				if (rvi->cargo_type == CT_INVALID) rvi->cargo_type = FindFirstRefittableCargo(engine);
				if (rvi->cargo_type == CT_INVALID) ei->climates = 0x80;
				break;
			}
			case VEH_ROAD: {
				RoadVehicleInfo *rvi = &e->u.road;
				if (rvi->cargo_type == CT_INVALID) rvi->cargo_type = FindFirstRefittableCargo(engine);
				if (rvi->cargo_type == CT_INVALID) ei->climates = 0x80;
				break;
			}
			case VEH_SHIP: {
				ShipVehicleInfo *svi = &e->u.ship;
				if (svi->cargo_type == CT_INVALID) svi->cargo_type = FindFirstRefittableCargo(engine);
				if (svi->cargo_type == CT_INVALID) ei->climates = 0x80;
				break;
			}
		}
	}
}

/** Add all new houses to the house array. House properties can be set at any
 * time in the GRF file, so we can only add a house spec to the house array
 * after the file has finished loading. We also need to check the dates, due to
 * the TTDPatch behaviour described below that we need to emulate. */
static void FinaliseHouseArray()
{
	/* If there are no houses with start dates before 1930, then all houses
	 * with start dates of 1930 have them reset to 0. This is in order to be
	 * compatible with TTDPatch, where if no houses have start dates before
	 * 1930 and the date is before 1930, the game pretends that this is 1930.
	 * If there have been any houses defined with start dates before 1930 then
	 * the dates are left alone.
	 * On the other hand, why 1930? Just 'fix' the houses with the lowest
	 * minimum introduction date to 0.
	 */
	Year min_year = MAX_YEAR;

	for (GRFFile *file = _first_grffile; file != NULL; file = file->next) {
		if (file->housespec == NULL) continue;

		for (int i = 0; i < HOUSE_MAX; i++) {
			HouseSpec *hs = file->housespec[i];
			if (hs != NULL) {
				_house_mngr.SetEntitySpec(hs);
				if (hs->min_year < min_year) min_year = hs->min_year;
			}
		}
	}

	if (min_year != 0) {
		for (int i = 0; i < HOUSE_MAX; i++) {
			HouseSpec *hs = GetHouseSpecs(i);

			if (hs->enabled && hs->min_year == min_year) hs->min_year = 0;
		}
	}
}

/** Add all new industries to the industry array. Industry properties can be set at any
 * time in the GRF file, so we can only add a industry spec to the industry array
 * after the file has finished loading. */
static void FinaliseIndustriesArray()
{
	for (GRFFile *file = _first_grffile; file != NULL; file = file->next) {
		if (file->industryspec != NULL) {
			for (int i = 0; i < NUM_INDUSTRYTYPES; i++) {
				IndustrySpec *indsp = file->industryspec[i];

				if (indsp != NULL && indsp->enabled) {
					StringID strid;
					/* process the conversion of text at the end, so to be sure everything will be fine
					 * and available.  Check if it does not return undefind marker, which is a very good sign of a
					 * substitute industry who has not changed the string been examined, thus using it as such */
					strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->name);
					if (strid != STR_UNDEFINED) indsp->name = strid;

					strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->closure_text);
					if (strid != STR_UNDEFINED) indsp->closure_text = strid;

					strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->production_up_text);
					if (strid != STR_UNDEFINED) indsp->production_up_text = strid;

					strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->production_down_text);
					if (strid != STR_UNDEFINED) indsp->production_down_text = strid;

					strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->new_industry_text);
					if (strid != STR_UNDEFINED) indsp->new_industry_text = strid;

					if (indsp->station_name != STR_NULL) {
						/* STR_NULL (0) can be set by grf.  It has a meaning regarding assignation of the
						 * station's name. Don't wont to loose the value, therefor, do not process. */
						strid = GetGRFStringID(indsp->grf_prop.grffile->grfid, indsp->station_name);
						if (strid != STR_UNDEFINED) indsp->station_name = strid;
					}

					_industry_mngr.SetEntitySpec(indsp);
					_loaded_newgrf_features.has_newindustries = true;
				}
			}
		}

		if (file->indtspec != NULL) {
			for (int i = 0; i < NUM_INDUSTRYTILES; i++) {
				IndustryTileSpec *indtsp = file->indtspec[i];
				if (indtsp != NULL) {
					_industile_mngr.SetEntitySpec(indtsp);
				}
			}
		}
	}

	for (uint j = 0; j < NUM_INDUSTRYTYPES; j++) {
		IndustrySpec *indsp = &_industry_specs[j];
		if (indsp->enabled && indsp->grf_prop.grffile != NULL) {
			for (uint i = 0; i < 3; i++) {
				indsp->conflicting[i] = MapNewGRFIndustryType(indsp->conflicting[i], indsp->grf_prop.grffile->grfid);
			}
		}
	}
}

/* Here we perform initial decoding of some special sprites (as are they
 * described at http://www.ttdpatch.net/src/newgrf.txt, but this is only a very
 * partial implementation yet). */
/* XXX: We consider GRF files trusted. It would be trivial to exploit OTTD by
 * a crafted invalid GRF file. We should tell that to the user somehow, or
 * better make this more robust in the future. */
static void DecodeSpecialSprite(uint num, GrfLoadingStage stage)
{
	/* XXX: There is a difference between staged loading in TTDPatch and
	 * here.  In TTDPatch, for some reason actions 1 and 2 are carried out
	 * during stage 1, whilst action 3 is carried out during stage 2 (to
	 * "resolve" cargo IDs... wtf). This is a little problem, because cargo
	 * IDs are valid only within a given set (action 1) block, and may be
	 * overwritten after action 3 associates them. But overwriting happens
	 * in an earlier stage than associating, so...  We just process actions
	 * 1 and 2 in stage 2 now, let's hope that won't get us into problems.
	 * --pasky */
	/* We need a pre-stage to set up GOTO labels of Action 0x10 because the grf
	 * is not in memory and scanning the file every time would be too expensive.
	 * In other stages we skip action 0x10 since it's already dealt with. */
	static const SpecialSpriteHandler handlers[][GLS_END] = {
		/* 0x00 */ { NULL,     SafeChangeInfo, NULL,       NULL,           ReserveChangeInfo, FeatureChangeInfo, },
		/* 0x01 */ { SkipAct1, SkipAct1,  SkipAct1,        SkipAct1,       SkipAct1,          NewSpriteSet, },
		/* 0x02 */ { NULL,     NULL,      NULL,            NULL,           NULL,              NewSpriteGroup, },
		/* 0x03 */ { NULL,     GRFUnsafe, NULL,            NULL,           NULL,              FeatureMapSpriteGroup, },
		/* 0x04 */ { NULL,     NULL,      NULL,            NULL,           NULL,              FeatureNewName, },
		/* 0x05 */ { SkipAct5, SkipAct5,  SkipAct5,        SkipAct5,       SkipAct5,          GraphicsNew, },
		/* 0x06 */ { NULL,     NULL,      NULL,            CfgApply,       CfgApply,          CfgApply, },
		/* 0x07 */ { NULL,     NULL,      NULL,            NULL,           SkipIf,            SkipIf, },
		/* 0x08 */ { ScanInfo, NULL,      NULL,            GRFInfo,        GRFInfo,           GRFInfo, },
		/* 0x09 */ { NULL,     NULL,      NULL,            SkipIf,         SkipIf,            SkipIf, },
		/* 0x0A */ { SkipActA, SkipActA,  SkipActA,        SkipActA,       SkipActA,          SpriteReplace, },
		/* 0x0B */ { NULL,     NULL,      NULL,            GRFLoadError,   GRFLoadError,      GRFLoadError, },
		/* 0x0C */ { NULL,     NULL,      NULL,            GRFComment,     NULL,              GRFComment, },
		/* 0x0D */ { NULL,     SafeParamSet, NULL,         ParamSet,       ParamSet,          ParamSet, },
		/* 0x0E */ { NULL,     SafeGRFInhibit, NULL,       GRFInhibit,     GRFInhibit,        GRFInhibit, },
		/* 0x0F */ { NULL,     GRFUnsafe, NULL,            FeatureTownName, NULL,             NULL, },
		/* 0x10 */ { NULL,     NULL,      DefineGotoLabel, NULL,           NULL,              NULL, },
		/* 0x11 */ { SkipAct11,GRFUnsafe, SkipAct11,       SkipAct11,      SkipAct11,         GRFSound, },
		/* 0x12 */ { SkipAct12, SkipAct12, SkipAct12,      SkipAct12,      SkipAct12,         LoadFontGlyph, },
		/* 0x13 */ { NULL,     NULL,      NULL,            NULL,           NULL,              TranslateGRFStrings, },
	};

	bool preloaded_sprite = true;
	GRFLocation location(_cur_grfconfig->grfid, _nfo_line);
	byte *buf;

	GRFLineToSpriteOverride::iterator it = _grf_line_to_action6_sprite_override.find(location);
	if (it == _grf_line_to_action6_sprite_override.end()) {
		/* No preloaded sprite to work with; allocate and read the
		 * pseudo sprite content. */
		buf = MallocT<byte>(num);
		FioReadBlock(buf, num);
		preloaded_sprite = false;
	} else {
		/* Use the preloaded sprite data. */
		buf = _grf_line_to_action6_sprite_override[location];
		grfmsg(7, "DecodeSpecialSprite: Using preloaded pseudo sprite data");

		/* Skip the real (original) content of this action. */
		FioSeekTo(num, SEEK_CUR);
	}

	byte action = buf[0];

	if (action == 0xFF) {
		grfmsg(7, "DecodeSpecialSprite: Handling data block in stage %d", stage);
		GRFDataBlock(buf, num);
	} else if (action == 0xFE) {
		grfmsg(7, "DecodeSpecialSprite: Handling import block in stage %d", stage);
		GRFImportBlock(buf, num);
	} else if (action >= lengthof(handlers)) {
		grfmsg(7, "DecodeSpecialSprite: Skipping unknown action 0x%02X", action);
	} else if (handlers[action][stage] == NULL) {
		grfmsg(7, "DecodeSpecialSprite: Skipping action 0x%02X in stage %d", action, stage);
	} else {
		grfmsg(7, "DecodeSpecialSprite: Handling action 0x%02X in stage %d", action, stage);
		handlers[action][stage](buf, num);
	}
	if (!preloaded_sprite) free(buf);
}


void LoadNewGRFFile(GRFConfig *config, uint file_index, GrfLoadingStage stage)
{
	const char *filename = config->filename;
	uint16 num;

	/* A .grf file is activated only if it was active when the game was
	 * started.  If a game is loaded, only its active .grfs will be
	 * reactivated, unless "loadallgraphics on" is used.  A .grf file is
	 * considered active if its action 8 has been processed, i.e. its
	 * action 8 hasn't been skipped using an action 7.
	 *
	 * During activation, only actions 0, 1, 2, 3, 4, 5, 7, 8, 9, 0A and 0B are
	 * carried out.  All others are ignored, because they only need to be
	 * processed once at initialization.  */
	if (stage != GLS_FILESCAN && stage != GLS_SAFETYSCAN && stage != GLS_LABELSCAN) {
		_cur_grffile = GetFileByFilename(filename);
		if (_cur_grffile == NULL) usererror("File '%s' lost in cache.\n", filename);
		if (stage == GLS_RESERVE && config->status != GCS_INITIALISED) return;
		if (stage == GLS_ACTIVATION && !HasBit(config->flags, GCF_RESERVED)) return;
		_cur_grffile->is_ottdfile = config->IsOpenTTDBaseGRF();
	}

	if (file_index > LAST_GRF_SLOT) {
		DEBUG(grf, 0, "'%s' is not loaded as the maximum number of GRFs has been reached", filename);
		config->status = GCS_DISABLED;
		config->error  = CallocT<GRFError>(1);
		config->error->severity = STR_NEWGRF_ERROR_MSG_FATAL;
		config->error->message  = STR_NEWGRF_ERROR_TOO_MANY_NEWGRFS_LOADED;
		return;
	}

	FioOpenFile(file_index, filename);
	_file_index = file_index; // XXX

	_cur_grfconfig = config;

	DEBUG(grf, 2, "LoadNewGRFFile: Reading NewGRF-file '%s'", filename);

	/* Skip the first sprite; we don't care about how many sprites this
	 * does contain; newest TTDPatches and George's longvehicles don't
	 * neither, apparently. */
	if (FioReadWord() == 4 && FioReadByte() == 0xFF) {
		FioReadDword();
	} else {
		DEBUG(grf, 7, "LoadNewGRFFile: Custom .grf has invalid format");
		return;
	}

	_skip_sprites = 0; // XXX
	_nfo_line = 0;

	while ((num = FioReadWord()) != 0) {
		byte type = FioReadByte();
		_nfo_line++;

		if (type == 0xFF) {
			if (_skip_sprites == 0) {
				DecodeSpecialSprite(num, stage);

				/* Stop all processing if we are to skip the remaining sprites */
				if (_skip_sprites == -1) break;

				continue;
			} else {
				FioSkipBytes(num);
			}
		} else {
			if (_skip_sprites == 0) grfmsg(7, "LoadNewGRFFile: Skipping unexpected sprite");

			FioSkipBytes(7);
			num -= 8;

			if (type & 2) {
				FioSkipBytes(num);
			} else {
				while (num > 0) {
					int8 i = FioReadByte();
					if (i >= 0) {
						num -= i;
						FioSkipBytes(i);
					} else {
						i = -(i >> 3);
						num -= i;
						FioReadByte();
					}
				}
			}
		}

		if (_skip_sprites > 0) _skip_sprites--;
	}
}

/**
 * Relocates the old shore sprites at new positions.
 *
 * 1. If shore sprites are neither loaded by Action5 nor ActionA, the extra sprites from openttd(w/d).grf are used. (SHORE_REPLACE_ONLY_NEW)
 * 2. If a newgrf replaces some shore sprites by ActionA. The (maybe also replaced) grass tiles are used for corner shores. (SHORE_REPLACE_ACTION_A)
 * 3. If a newgrf replaces shore sprites by Action5 any shore replacement by ActionA has no effect. (SHORE_REPLACE_ACTION_5)
 */
static void ActivateOldShore()
{
	/* Use default graphics, if no shore sprites were loaded.
	 * Should not happen, as openttd(w/d).grf includes some. */
	if (_loaded_newgrf_features.shore == SHORE_REPLACE_NONE) _loaded_newgrf_features.shore = SHORE_REPLACE_ACTION_A;

	if (_loaded_newgrf_features.shore != SHORE_REPLACE_ACTION_5) {
		DupSprite(SPR_ORIGINALSHORE_START +  1, SPR_SHORE_BASE +  1); // SLOPE_W
		DupSprite(SPR_ORIGINALSHORE_START +  2, SPR_SHORE_BASE +  2); // SLOPE_S
		DupSprite(SPR_ORIGINALSHORE_START +  6, SPR_SHORE_BASE +  3); // SLOPE_SW
		DupSprite(SPR_ORIGINALSHORE_START     , SPR_SHORE_BASE +  4); // SLOPE_E
		DupSprite(SPR_ORIGINALSHORE_START +  4, SPR_SHORE_BASE +  6); // SLOPE_SE
		DupSprite(SPR_ORIGINALSHORE_START +  3, SPR_SHORE_BASE +  8); // SLOPE_N
		DupSprite(SPR_ORIGINALSHORE_START +  7, SPR_SHORE_BASE +  9); // SLOPE_NW
		DupSprite(SPR_ORIGINALSHORE_START +  5, SPR_SHORE_BASE + 12); // SLOPE_NE
	}

	if (_loaded_newgrf_features.shore == SHORE_REPLACE_ACTION_A) {
		DupSprite(SPR_FLAT_GRASS_TILE + 16, SPR_SHORE_BASE +  0); // SLOPE_STEEP_S
		DupSprite(SPR_FLAT_GRASS_TILE + 17, SPR_SHORE_BASE +  5); // SLOPE_STEEP_W
		DupSprite(SPR_FLAT_GRASS_TILE +  7, SPR_SHORE_BASE +  7); // SLOPE_WSE
		DupSprite(SPR_FLAT_GRASS_TILE + 15, SPR_SHORE_BASE + 10); // SLOPE_STEEP_N
		DupSprite(SPR_FLAT_GRASS_TILE + 11, SPR_SHORE_BASE + 11); // SLOPE_NWS
		DupSprite(SPR_FLAT_GRASS_TILE + 13, SPR_SHORE_BASE + 13); // SLOPE_ENW
		DupSprite(SPR_FLAT_GRASS_TILE + 14, SPR_SHORE_BASE + 14); // SLOPE_SEN
		DupSprite(SPR_FLAT_GRASS_TILE + 18, SPR_SHORE_BASE + 15); // SLOPE_STEEP_E

		/* XXX - SLOPE_EW, SLOPE_NS are currently not used.
		 *       If they would be used somewhen, then these grass tiles will most like not look as needed */
		DupSprite(SPR_FLAT_GRASS_TILE +  5, SPR_SHORE_BASE + 16); // SLOPE_EW
		DupSprite(SPR_FLAT_GRASS_TILE + 10, SPR_SHORE_BASE + 17); // SLOPE_NS
	}
}

void InitDepotWindowBlockSizes();

extern void InitGRFTownGeneratorNames();

static void AfterLoadGRFs()
{
	for (StringIDToGRFIDMapping::iterator it = _string_to_grf_mapping.begin(); it != _string_to_grf_mapping.end(); it++) {
		*((*it).first) = MapGRFStringID((*it).second, *((*it).first));
	}
	_string_to_grf_mapping.clear();

	/* Free the action 6 override sprites. */
	for (GRFLineToSpriteOverride::iterator it = _grf_line_to_action6_sprite_override.begin(); it != _grf_line_to_action6_sprite_override.end(); it++) {
		free((*it).second);
	}
	_grf_line_to_action6_sprite_override.clear();

	/* Update the bitmasks for the vehicle lists */
	Player *p;
	FOR_ALL_PLAYERS(p) {
		p->avail_railtypes = GetPlayerRailtypes(p->index);
		p->avail_roadtypes = GetPlayerRoadtypes(p->index);
	}

	/* Pre-calculate all refit masks after loading GRF files. */
	CalculateRefitMasks();

	/* Set the block size in the depot windows based on vehicle sprite sizes */
	InitDepotWindowBlockSizes();

	/* Add all new houses to the house array. */
	FinaliseHouseArray();

	/* Add all new industries to the industry array. */
	FinaliseIndustriesArray();

	/* Create dynamic list of industry legends for smallmap_gui.cpp */
	BuildIndustriesLegend();

	/* Update the townname generators list */
	InitGRFTownGeneratorNames();

	/* Run all queued vehicle list order changes */
	CommitVehicleListOrderChanges();

	/* Load old shore sprites in new position, if they were replaced by ActionA */
	ActivateOldShore();

	/* Deallocate temporary loading data */
	free(_gted);
	_grm_sprites.clear();
}

void LoadNewGRF(uint load_index, uint file_index)
{
	InitializeGRFSpecial();

	ResetNewGRFData();

	/*
	 * Reset the status of all files, so we can 'retry' to load them.
	 * This is needed when one for example rearranges the NewGRFs in-game
	 * and a previously disabled NewGRF becomes useable. If it would not
	 * be reset, the NewGRF would remain disabled even though it should
	 * have been enabled.
	 */
	for (GRFConfig *c = _grfconfig; c != NULL; c = c->next) {
		if (c->status != GCS_NOT_FOUND) c->status = GCS_UNKNOWN;
	}

	_cur_spriteid = load_index;

	/* Load newgrf sprites
	 * in each loading stage, (try to) open each file specified in the config
	 * and load information from it. */
	for (GrfLoadingStage stage = GLS_LABELSCAN; stage <= GLS_ACTIVATION; stage++) {
		/* Set activated grfs back to will-be-activated between reservation- and activation-stage.
		 * This ensures that action7/9 conditions 0x06 - 0x0A work correctly. */
		for (GRFConfig *c = _grfconfig; c != NULL; c = c->next) {
			if (c->status == GCS_ACTIVATED) c->status = GCS_INITIALISED;
		}

		uint slot = file_index;

		_cur_stage = stage;
		for (GRFConfig *c = _grfconfig; c != NULL; c = c->next) {
			if (c->status == GCS_DISABLED || c->status == GCS_NOT_FOUND) continue;
			if (stage > GLS_INIT && HasBit(c->flags, GCF_INIT_ONLY)) continue;

			/* @todo usererror() */
			if (!FioCheckFileExists(c->filename)) usererror("NewGRF file is missing '%s'", c->filename);

			if (stage == GLS_LABELSCAN) InitNewGRFFile(c, _cur_spriteid);
			LoadNewGRFFile(c, slot++, stage);
			if (stage == GLS_RESERVE) {
				SetBit(c->flags, GCF_RESERVED);
			} else if (stage == GLS_ACTIVATION) {
				ClrBit(c->flags, GCF_RESERVED);
				ClearTemporaryNewGRFData();
				BuildCargoTranslationMap();
				DEBUG(sprite, 2, "LoadNewGRF: Currently %i sprites are loaded", _cur_spriteid);
			}
		}
	}

	/* Call any functions that should be run after GRFs have been loaded. */
	AfterLoadGRFs();
}

bool HasGrfMiscBit(GrfMiscBit bit)
{
	return HasBit(_misc_grf_features, bit);
}