Files
@ r26254:4dd185cf8a2d
Branch filter:
Location: cpp/openttd-patchpack/source/src/water_cmd.cpp
r26254:4dd185cf8a2d
43.7 KiB
text/x-c
Merge with master
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 | /*
* This file is part of OpenTTD.
* OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
* OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file water_cmd.cpp Handling of water tiles. */
#include "stdafx.h"
#include "landscape.h"
#include "viewport_func.h"
#include "command_func.h"
#include "town.h"
#include "news_func.h"
#include "depot_base.h"
#include "depot_func.h"
#include "water.h"
#include "industry_map.h"
#include "newgrf_canal.h"
#include "strings_func.h"
#include "vehicle_func.h"
#include "sound_func.h"
#include "company_func.h"
#include "clear_map.h"
#include "tree_map.h"
#include "aircraft.h"
#include "effectvehicle_func.h"
#include "tunnelbridge_map.h"
#include "station_base.h"
#include "ai/ai.hpp"
#include "game/game.hpp"
#include "core/random_func.hpp"
#include "core/backup_type.hpp"
#include "date_func.h"
#include "company_base.h"
#include "company_gui.h"
#include "newgrf_generic.h"
#include "industry.h"
#include "water_cmd.h"
#include "landscape_cmd.h"
#include "table/strings.h"
#include "safeguards.h"
/**
* Describes from which directions a specific slope can be flooded (if the tile is floodable at all).
*/
static const uint8 _flood_from_dirs[] = {
(1 << DIR_NW) | (1 << DIR_SW) | (1 << DIR_SE) | (1 << DIR_NE), // SLOPE_FLAT
(1 << DIR_NE) | (1 << DIR_SE), // SLOPE_W
(1 << DIR_NW) | (1 << DIR_NE), // SLOPE_S
(1 << DIR_NE), // SLOPE_SW
(1 << DIR_NW) | (1 << DIR_SW), // SLOPE_E
0, // SLOPE_EW
(1 << DIR_NW), // SLOPE_SE
(1 << DIR_N ) | (1 << DIR_NW) | (1 << DIR_NE), // SLOPE_WSE, SLOPE_STEEP_S
(1 << DIR_SW) | (1 << DIR_SE), // SLOPE_N
(1 << DIR_SE), // SLOPE_NW
0, // SLOPE_NS
(1 << DIR_E ) | (1 << DIR_NE) | (1 << DIR_SE), // SLOPE_NWS, SLOPE_STEEP_W
(1 << DIR_SW), // SLOPE_NE
(1 << DIR_S ) | (1 << DIR_SW) | (1 << DIR_SE), // SLOPE_ENW, SLOPE_STEEP_N
(1 << DIR_W ) | (1 << DIR_SW) | (1 << DIR_NW), // SLOPE_SEN, SLOPE_STEEP_E
};
/**
* Marks tile dirty if it is a canal or river tile.
* Called to avoid glitches when flooding tiles next to canal tile.
*
* @param tile tile to check
*/
static inline void MarkTileDirtyIfCanalOrRiver(TileIndex tile)
{
if (IsValidTile(tile) && IsTileType(tile, MP_WATER) && (IsCanal(tile) || IsRiver(tile))) MarkTileDirtyByTile(tile);
}
/**
* Marks the tiles around a tile as dirty, if they are canals or rivers.
*
* @param tile The center of the tile where all other tiles are marked as dirty
* @ingroup dirty
*/
static void MarkCanalsAndRiversAroundDirty(TileIndex tile)
{
for (Direction dir = DIR_BEGIN; dir < DIR_END; dir++) {
MarkTileDirtyIfCanalOrRiver(tile + TileOffsByDir(dir));
}
}
/**
* Build a ship depot.
* @param flags type of operation
* @param tile tile where ship depot is built
* @param axis depot orientation (Axis)
* @return the cost of this operation or an error
*/
CommandCost CmdBuildShipDepot(DoCommandFlag flags, TileIndex tile, Axis axis)
{
if (!IsValidAxis(axis)) return CMD_ERROR;
TileIndex tile2 = tile + (axis == AXIS_X ? TileDiffXY(1, 0) : TileDiffXY(0, 1));
if (!HasTileWaterGround(tile) || !HasTileWaterGround(tile2)) {
return_cmd_error(STR_ERROR_MUST_BE_BUILT_ON_WATER);
}
if (IsBridgeAbove(tile) || IsBridgeAbove(tile2)) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
if (!IsTileFlat(tile) || !IsTileFlat(tile2)) {
/* Prevent depots on rapids */
return_cmd_error(STR_ERROR_SITE_UNSUITABLE);
}
if (!Depot::CanAllocateItem()) return CMD_ERROR;
WaterClass wc1 = GetWaterClass(tile);
WaterClass wc2 = GetWaterClass(tile2);
CommandCost cost = CommandCost(EXPENSES_T_SHIP_CON, _price[PR_BUILD_DEPOT_SHIP]);
bool add_cost = !IsWaterTile(tile);
CommandCost ret = Command<CMD_LANDSCAPE_CLEAR>::Do(flags | DC_AUTO, tile);
if (ret.Failed()) return ret;
if (add_cost) {
cost.AddCost(ret);
}
add_cost = !IsWaterTile(tile2);
ret = Command<CMD_LANDSCAPE_CLEAR>::Do(flags | DC_AUTO, tile2);
if (ret.Failed()) return ret;
if (add_cost) {
cost.AddCost(ret);
}
if (flags & DC_EXEC) {
Depot *depot = new Depot(tile);
depot->build_date = _date;
if (wc1 == WATER_CLASS_CANAL || wc2 == WATER_CLASS_CANAL) {
/* Update infrastructure counts after the unconditional clear earlier. */
Company::Get(_current_company)->infrastructure.water += wc1 == WATER_CLASS_CANAL && wc2 == WATER_CLASS_CANAL ? 2 : 1;
}
Company::Get(_current_company)->infrastructure.water += 2 * LOCK_DEPOT_TILE_FACTOR;
DirtyCompanyInfrastructureWindows(_current_company);
MakeShipDepot(tile, _current_company, depot->index, DEPOT_PART_NORTH, axis, wc1);
MakeShipDepot(tile2, _current_company, depot->index, DEPOT_PART_SOUTH, axis, wc2);
CheckForDockingTile(tile);
CheckForDockingTile(tile2);
MarkTileDirtyByTile(tile);
MarkTileDirtyByTile(tile2);
MakeDefaultName(depot);
}
return cost;
}
bool IsPossibleDockingTile(TileIndex t)
{
assert(IsValidTile(t));
switch (GetTileType(t)) {
case MP_WATER:
if (IsLock(t) && GetLockPart(t) == LOCK_PART_MIDDLE) return false;
FALLTHROUGH;
case MP_RAILWAY:
case MP_STATION:
case MP_TUNNELBRIDGE:
return TrackStatusToTrackBits(GetTileTrackStatus(t, TRANSPORT_WATER, 0)) != TRACK_BIT_NONE;
default:
return false;
}
}
/**
* Mark the supplied tile as a docking tile if it is suitable for docking.
* Tiles surrounding the tile are tested to be docks with correct orientation.
* @param t Tile to test.
*/
void CheckForDockingTile(TileIndex t)
{
for (DiagDirection d = DIAGDIR_BEGIN; d != DIAGDIR_END; d++) {
TileIndex tile = t + TileOffsByDiagDir(d);
if (!IsValidTile(tile)) continue;
if (IsDockTile(tile) && IsValidDockingDirectionForDock(tile, d)) {
Station::GetByTile(tile)->docking_station.Add(t);
SetDockingTile(t, true);
}
if (IsTileType(tile, MP_INDUSTRY)) {
Station *st = Industry::GetByTile(tile)->neutral_station;
if (st != nullptr) {
st->docking_station.Add(t);
SetDockingTile(t, true);
}
}
if (IsTileType(tile, MP_STATION) && IsOilRig(tile)) {
Station::GetByTile(tile)->docking_station.Add(t);
SetDockingTile(t, true);
}
}
}
void MakeWaterKeepingClass(TileIndex tile, Owner o)
{
WaterClass wc = GetWaterClass(tile);
/* Autoslope might turn an originally canal or river tile into land */
int z;
Slope slope = GetTileSlope(tile, &z);
if (slope != SLOPE_FLAT) {
if (wc == WATER_CLASS_CANAL) {
/* If we clear the canal, we have to remove it from the infrastructure count as well. */
Company *c = Company::GetIfValid(o);
if (c != nullptr) {
c->infrastructure.water--;
DirtyCompanyInfrastructureWindows(c->index);
}
/* Sloped canals are locks and no natural water remains whatever the slope direction */
wc = WATER_CLASS_INVALID;
}
/* Only river water should be restored on appropriate slopes. Other water would be invalid on slopes */
if (wc != WATER_CLASS_RIVER || GetInclinedSlopeDirection(slope) == INVALID_DIAGDIR) {
wc = WATER_CLASS_INVALID;
}
}
if (wc == WATER_CLASS_SEA && z > 0) {
/* Update company infrastructure count. */
Company *c = Company::GetIfValid(o);
if (c != nullptr) {
c->infrastructure.water++;
DirtyCompanyInfrastructureWindows(c->index);
}
wc = WATER_CLASS_CANAL;
}
/* Zero map array and terminate animation */
DoClearSquare(tile);
/* Maybe change to water */
switch (wc) {
case WATER_CLASS_SEA: MakeSea(tile); break;
case WATER_CLASS_CANAL: MakeCanal(tile, o, Random()); break;
case WATER_CLASS_RIVER: MakeRiver(tile, Random()); break;
default: break;
}
if (wc != WATER_CLASS_INVALID) CheckForDockingTile(tile);
MarkTileDirtyByTile(tile);
}
static CommandCost RemoveShipDepot(TileIndex tile, DoCommandFlag flags)
{
if (!IsShipDepot(tile)) return CMD_ERROR;
CommandCost ret = CheckTileOwnership(tile);
if (ret.Failed()) return ret;
TileIndex tile2 = GetOtherShipDepotTile(tile);
/* do not check for ship on tile when company goes bankrupt */
if (!(flags & DC_BANKRUPT)) {
CommandCost ret = EnsureNoVehicleOnGround(tile);
if (ret.Succeeded()) ret = EnsureNoVehicleOnGround(tile2);
if (ret.Failed()) return ret;
}
if (flags & DC_EXEC) {
delete Depot::GetByTile(tile);
Company *c = Company::GetIfValid(GetTileOwner(tile));
if (c != nullptr) {
c->infrastructure.water -= 2 * LOCK_DEPOT_TILE_FACTOR;
DirtyCompanyInfrastructureWindows(c->index);
}
MakeWaterKeepingClass(tile, GetTileOwner(tile));
MakeWaterKeepingClass(tile2, GetTileOwner(tile2));
}
return CommandCost(EXPENSES_T_SHIP_CON, _price[PR_CLEAR_DEPOT_SHIP]);
}
/**
* Builds a lock.
* @param tile Central tile of the lock.
* @param dir Uphill direction.
* @param flags Operation to perform.
* @return The cost in case of success, or an error code if it failed.
*/
static CommandCost DoBuildLock(TileIndex tile, DiagDirection dir, DoCommandFlag flags)
{
CommandCost cost(EXPENSES_T_SHIP_CON);
int delta = TileOffsByDiagDir(dir);
CommandCost ret = EnsureNoVehicleOnGround(tile);
if (ret.Succeeded()) ret = EnsureNoVehicleOnGround(tile + delta);
if (ret.Succeeded()) ret = EnsureNoVehicleOnGround(tile - delta);
if (ret.Failed()) return ret;
/* middle tile */
WaterClass wc_middle = HasTileWaterGround(tile) ? GetWaterClass(tile) : WATER_CLASS_CANAL;
ret = Command<CMD_LANDSCAPE_CLEAR>::Do(flags, tile);
if (ret.Failed()) return ret;
cost.AddCost(ret);
/* lower tile */
if (!IsWaterTile(tile - delta)) {
ret = Command<CMD_LANDSCAPE_CLEAR>::Do(flags, tile - delta);
if (ret.Failed()) return ret;
cost.AddCost(ret);
cost.AddCost(_price[PR_BUILD_CANAL]);
}
if (!IsTileFlat(tile - delta)) {
return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
}
WaterClass wc_lower = IsWaterTile(tile - delta) ? GetWaterClass(tile - delta) : WATER_CLASS_CANAL;
/* upper tile */
if (!IsWaterTile(tile + delta)) {
ret = Command<CMD_LANDSCAPE_CLEAR>::Do(flags, tile + delta);
if (ret.Failed()) return ret;
cost.AddCost(ret);
cost.AddCost(_price[PR_BUILD_CANAL]);
}
if (!IsTileFlat(tile + delta)) {
return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
}
WaterClass wc_upper = IsWaterTile(tile + delta) ? GetWaterClass(tile + delta) : WATER_CLASS_CANAL;
if (IsBridgeAbove(tile) || IsBridgeAbove(tile - delta) || IsBridgeAbove(tile + delta)) {
return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
}
if (flags & DC_EXEC) {
/* Update company infrastructure counts. */
Company *c = Company::GetIfValid(_current_company);
if (c != nullptr) {
/* Counts for the water. */
if (!IsWaterTile(tile - delta)) c->infrastructure.water++;
if (!IsWaterTile(tile + delta)) c->infrastructure.water++;
/* Count for the lock itself. */
c->infrastructure.water += 3 * LOCK_DEPOT_TILE_FACTOR; // Lock is three tiles.
DirtyCompanyInfrastructureWindows(_current_company);
}
MakeLock(tile, _current_company, dir, wc_lower, wc_upper, wc_middle);
CheckForDockingTile(tile - delta);
CheckForDockingTile(tile + delta);
MarkTileDirtyByTile(tile);
MarkTileDirtyByTile(tile - delta);
MarkTileDirtyByTile(tile + delta);
MarkCanalsAndRiversAroundDirty(tile - delta);
MarkCanalsAndRiversAroundDirty(tile + delta);
}
cost.AddCost(_price[PR_BUILD_LOCK]);
return cost;
}
/**
* Remove a lock.
* @param tile Central tile of the lock.
* @param flags Operation to perform.
* @return The cost in case of success, or an error code if it failed.
*/
static CommandCost RemoveLock(TileIndex tile, DoCommandFlag flags)
{
if (GetTileOwner(tile) != OWNER_NONE) {
CommandCost ret = CheckTileOwnership(tile);
if (ret.Failed()) return ret;
}
TileIndexDiff delta = TileOffsByDiagDir(GetLockDirection(tile));
/* make sure no vehicle is on the tile. */
CommandCost ret = EnsureNoVehicleOnGround(tile);
if (ret.Succeeded()) ret = EnsureNoVehicleOnGround(tile + delta);
if (ret.Succeeded()) ret = EnsureNoVehicleOnGround(tile - delta);
if (ret.Failed()) return ret;
if (flags & DC_EXEC) {
/* Remove middle part from company infrastructure count. */
Company *c = Company::GetIfValid(GetTileOwner(tile));
if (c != nullptr) {
c->infrastructure.water -= 3 * LOCK_DEPOT_TILE_FACTOR; // three parts of the lock.
DirtyCompanyInfrastructureWindows(c->index);
}
if (GetWaterClass(tile) == WATER_CLASS_RIVER) {
MakeRiver(tile, Random());
} else {
DoClearSquare(tile);
}
MakeWaterKeepingClass(tile + delta, GetTileOwner(tile + delta));
MakeWaterKeepingClass(tile - delta, GetTileOwner(tile - delta));
MarkCanalsAndRiversAroundDirty(tile);
MarkCanalsAndRiversAroundDirty(tile - delta);
MarkCanalsAndRiversAroundDirty(tile + delta);
}
return CommandCost(EXPENSES_T_SHIP_CON, _price[PR_CLEAR_LOCK]);
}
/**
* Builds a lock.
* @param flags type of operation
* @param tile tile where to place the lock
* @return the cost of this operation or an error
*/
CommandCost CmdBuildLock(DoCommandFlag flags, TileIndex tile)
{
DiagDirection dir = GetInclinedSlopeDirection(GetTileSlope(tile));
if (dir == INVALID_DIAGDIR) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
return DoBuildLock(tile, dir, flags);
}
/** Callback to create non-desert around a river tile. */
bool RiverModifyDesertZone(TileIndex tile, void *)
{
if (GetTropicZone(tile) == TROPICZONE_DESERT) SetTropicZone(tile, TROPICZONE_NORMAL);
return false;
}
/**
* Build a piece of canal.
* @param flags type of operation
* @param tile end tile of stretch-dragging
* @param start_tile start tile of stretch-dragging
* @param wc waterclass to build. sea and river can only be built in scenario editor
* @param diagonal Whether to use the Orthogonal (0) or Diagonal (1) iterator.
* @return the cost of this operation or an error
*/
CommandCost CmdBuildCanal(DoCommandFlag flags, TileIndex tile, TileIndex start_tile, WaterClass wc, bool diagonal)
{
if (start_tile >= MapSize() || !IsValidWaterClass(wc)) return CMD_ERROR;
/* Outside of the editor you can only build canals, not oceans */
if (wc != WATER_CLASS_CANAL && _game_mode != GM_EDITOR) return CMD_ERROR;
/* Outside the editor you can only drag canals, and not areas */
if (_game_mode != GM_EDITOR) {
TileArea ta(tile, start_tile);
if (ta.w != 1 && ta.h != 1) return CMD_ERROR;
}
CommandCost cost(EXPENSES_T_SHIP_CON);
std::unique_ptr<TileIterator> iter;
if (diagonal) {
iter = std::make_unique<DiagonalTileIterator>(tile, start_tile);
} else {
iter = std::make_unique<OrthogonalTileIterator>(tile, start_tile);
}
for (; *iter != INVALID_TILE; ++(*iter)) {
TileIndex current_tile = *iter;
CommandCost ret;
Slope slope = GetTileSlope(current_tile);
if (slope != SLOPE_FLAT && (wc != WATER_CLASS_RIVER || !IsInclinedSlope(slope))) {
return_cmd_error(STR_ERROR_FLAT_LAND_REQUIRED);
}
bool water = IsWaterTile(current_tile);
/* Outside the editor, prevent building canals over your own or OWNER_NONE owned canals */
if (water && IsCanal(current_tile) && _game_mode != GM_EDITOR && (IsTileOwner(current_tile, _current_company) || IsTileOwner(current_tile, OWNER_NONE))) continue;
ret = Command<CMD_LANDSCAPE_CLEAR>::Do(flags, current_tile);
if (ret.Failed()) return ret;
if (!water) cost.AddCost(ret);
if (flags & DC_EXEC) {
switch (wc) {
case WATER_CLASS_RIVER:
MakeRiver(current_tile, Random());
if (_game_mode == GM_EDITOR) {
TileIndex tile2 = current_tile;
CircularTileSearch(&tile2, RIVER_OFFSET_DESERT_DISTANCE, RiverModifyDesertZone, nullptr);
}
break;
case WATER_CLASS_SEA:
if (TileHeight(current_tile) == 0) {
MakeSea(current_tile);
break;
}
FALLTHROUGH;
default:
MakeCanal(current_tile, _current_company, Random());
if (Company::IsValidID(_current_company)) {
Company::Get(_current_company)->infrastructure.water++;
DirtyCompanyInfrastructureWindows(_current_company);
}
break;
}
MarkTileDirtyByTile(current_tile);
MarkCanalsAndRiversAroundDirty(current_tile);
CheckForDockingTile(current_tile);
}
cost.AddCost(_price[PR_BUILD_CANAL]);
}
if (cost.GetCost() == 0) {
return_cmd_error(STR_ERROR_ALREADY_BUILT);
} else {
return cost;
}
}
static CommandCost ClearTile_Water(TileIndex tile, DoCommandFlag flags)
{
switch (GetWaterTileType(tile)) {
case WATER_TILE_CLEAR: {
if (flags & DC_NO_WATER) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
Money base_cost = IsCanal(tile) ? _price[PR_CLEAR_CANAL] : _price[PR_CLEAR_WATER];
/* Make sure freeform edges are allowed or it's not an edge tile. */
if (!_settings_game.construction.freeform_edges && (!IsInsideMM(TileX(tile), 1, MapMaxX() - 1) ||
!IsInsideMM(TileY(tile), 1, MapMaxY() - 1))) {
return_cmd_error(STR_ERROR_TOO_CLOSE_TO_EDGE_OF_MAP);
}
/* Make sure no vehicle is on the tile */
CommandCost ret = EnsureNoVehicleOnGround(tile);
if (ret.Failed()) return ret;
Owner owner = GetTileOwner(tile);
if (owner != OWNER_WATER && owner != OWNER_NONE) {
CommandCost ret = CheckTileOwnership(tile);
if (ret.Failed()) return ret;
}
if (flags & DC_EXEC) {
if (IsCanal(tile) && Company::IsValidID(owner)) {
Company::Get(owner)->infrastructure.water--;
DirtyCompanyInfrastructureWindows(owner);
}
bool remove = IsDockingTile(tile);
DoClearSquare(tile);
MarkCanalsAndRiversAroundDirty(tile);
if (remove) RemoveDockingTile(tile);
}
return CommandCost(EXPENSES_T_DEMOLITION, base_cost);
}
case WATER_TILE_COAST: {
Slope slope = GetTileSlope(tile);
/* Make sure no vehicle is on the tile */
CommandCost ret = EnsureNoVehicleOnGround(tile);
if (ret.Failed()) return ret;
if (flags & DC_EXEC) {
bool remove = IsDockingTile(tile);
DoClearSquare(tile);
MarkCanalsAndRiversAroundDirty(tile);
if (remove) RemoveDockingTile(tile);
}
if (IsSlopeWithOneCornerRaised(slope)) {
return CommandCost(EXPENSES_T_DEMOLITION, _price[PR_CLEAR_WATER]);
} else {
return CommandCost(EXPENSES_T_DEMOLITION, _price[PR_CLEAR_ROUGH]);
}
}
case WATER_TILE_LOCK: {
static const TileIndexDiffC _lock_tomiddle_offs[][DIAGDIR_END] = {
/* NE SE SW NW */
{ { 0, 0}, {0, 0}, { 0, 0}, {0, 0} }, // LOCK_PART_MIDDLE
{ {-1, 0}, {0, 1}, { 1, 0}, {0, -1} }, // LOCK_PART_LOWER
{ { 1, 0}, {0, -1}, {-1, 0}, {0, 1} }, // LOCK_PART_UPPER
};
if (flags & DC_AUTO) return_cmd_error(STR_ERROR_BUILDING_MUST_BE_DEMOLISHED);
if (_current_company == OWNER_WATER) return CMD_ERROR;
/* move to the middle tile.. */
return RemoveLock(tile + ToTileIndexDiff(_lock_tomiddle_offs[GetLockPart(tile)][GetLockDirection(tile)]), flags);
}
case WATER_TILE_DEPOT:
if (flags & DC_AUTO) return_cmd_error(STR_ERROR_BUILDING_MUST_BE_DEMOLISHED);
return RemoveShipDepot(tile, flags);
default:
NOT_REACHED();
}
}
/**
* return true if a tile is a water tile wrt. a certain direction.
*
* @param tile The tile of interest.
* @param from The direction of interest.
* @return true iff the tile is water in the view of 'from'.
*
*/
bool IsWateredTile(TileIndex tile, Direction from)
{
switch (GetTileType(tile)) {
case MP_WATER:
switch (GetWaterTileType(tile)) {
default: NOT_REACHED();
case WATER_TILE_DEPOT: case WATER_TILE_CLEAR: return true;
case WATER_TILE_LOCK: return DiagDirToAxis(GetLockDirection(tile)) == DiagDirToAxis(DirToDiagDir(from));
case WATER_TILE_COAST:
switch (GetTileSlope(tile)) {
case SLOPE_W: return (from == DIR_SE) || (from == DIR_E) || (from == DIR_NE);
case SLOPE_S: return (from == DIR_NE) || (from == DIR_N) || (from == DIR_NW);
case SLOPE_E: return (from == DIR_NW) || (from == DIR_W) || (from == DIR_SW);
case SLOPE_N: return (from == DIR_SW) || (from == DIR_S) || (from == DIR_SE);
default: return false;
}
}
case MP_RAILWAY:
if (GetRailGroundType(tile) == RAIL_GROUND_WATER) {
assert(IsPlainRail(tile));
switch (GetTileSlope(tile)) {
case SLOPE_W: return (from == DIR_SE) || (from == DIR_E) || (from == DIR_NE);
case SLOPE_S: return (from == DIR_NE) || (from == DIR_N) || (from == DIR_NW);
case SLOPE_E: return (from == DIR_NW) || (from == DIR_W) || (from == DIR_SW);
case SLOPE_N: return (from == DIR_SW) || (from == DIR_S) || (from == DIR_SE);
default: return false;
}
}
return false;
case MP_STATION:
if (IsOilRig(tile)) {
/* Do not draw waterborders inside of industries.
* Note: There is no easy way to detect the industry of an oilrig tile. */
TileIndex src_tile = tile + TileOffsByDir(from);
if ((IsTileType(src_tile, MP_STATION) && IsOilRig(src_tile)) ||
(IsTileType(src_tile, MP_INDUSTRY))) return true;
return IsTileOnWater(tile);
}
return (IsDock(tile) && IsTileFlat(tile)) || IsBuoy(tile);
case MP_INDUSTRY: {
/* Do not draw waterborders inside of industries.
* Note: There is no easy way to detect the industry of an oilrig tile. */
TileIndex src_tile = tile + TileOffsByDir(from);
if ((IsTileType(src_tile, MP_STATION) && IsOilRig(src_tile)) ||
(IsTileType(src_tile, MP_INDUSTRY) && GetIndustryIndex(src_tile) == GetIndustryIndex(tile))) return true;
return IsTileOnWater(tile);
}
case MP_OBJECT: return IsTileOnWater(tile);
case MP_TUNNELBRIDGE: return GetTunnelBridgeTransportType(tile) == TRANSPORT_WATER && ReverseDiagDir(GetTunnelBridgeDirection(tile)) == DirToDiagDir(from);
case MP_VOID: return true; // consider map border as water, esp. for rivers
default: return false;
}
}
/**
* Draw a water sprite, potentially with a NewGRF-modified sprite offset.
* @param base Sprite base.
* @param offset Sprite offset.
* @param feature The type of sprite that is drawn.
* @param tile Tile index to draw.
*/
static void DrawWaterSprite(SpriteID base, uint offset, CanalFeature feature, TileIndex tile)
{
if (base != SPR_FLAT_WATER_TILE) {
/* Only call offset callback if the sprite is NewGRF-provided. */
offset = GetCanalSpriteOffset(feature, tile, offset);
}
DrawGroundSprite(base + offset, PAL_NONE);
}
/**
* Draw canal or river edges.
* @param canal True if canal edges should be drawn, false for river edges.
* @param offset Sprite offset.
* @param tile Tile to draw.
*/
static void DrawWaterEdges(bool canal, uint offset, TileIndex tile)
{
CanalFeature feature;
SpriteID base = 0;
if (canal) {
feature = CF_DIKES;
base = GetCanalSprite(CF_DIKES, tile);
if (base == 0) base = SPR_CANAL_DIKES_BASE;
} else {
feature = CF_RIVER_EDGE;
base = GetCanalSprite(CF_RIVER_EDGE, tile);
if (base == 0) return; // Don't draw if no sprites provided.
}
uint wa;
/* determine the edges around with water. */
wa = IsWateredTile(TILE_ADDXY(tile, -1, 0), DIR_SW) << 0;
wa += IsWateredTile(TILE_ADDXY(tile, 0, 1), DIR_NW) << 1;
wa += IsWateredTile(TILE_ADDXY(tile, 1, 0), DIR_NE) << 2;
wa += IsWateredTile(TILE_ADDXY(tile, 0, -1), DIR_SE) << 3;
if (!(wa & 1)) DrawWaterSprite(base, offset, feature, tile);
if (!(wa & 2)) DrawWaterSprite(base, offset + 1, feature, tile);
if (!(wa & 4)) DrawWaterSprite(base, offset + 2, feature, tile);
if (!(wa & 8)) DrawWaterSprite(base, offset + 3, feature, tile);
/* right corner */
switch (wa & 0x03) {
case 0: DrawWaterSprite(base, offset + 4, feature, tile); break;
case 3: if (!IsWateredTile(TILE_ADDXY(tile, -1, 1), DIR_W)) DrawWaterSprite(base, offset + 8, feature, tile); break;
}
/* bottom corner */
switch (wa & 0x06) {
case 0: DrawWaterSprite(base, offset + 5, feature, tile); break;
case 6: if (!IsWateredTile(TILE_ADDXY(tile, 1, 1), DIR_N)) DrawWaterSprite(base, offset + 9, feature, tile); break;
}
/* left corner */
switch (wa & 0x0C) {
case 0: DrawWaterSprite(base, offset + 6, feature, tile); break;
case 12: if (!IsWateredTile(TILE_ADDXY(tile, 1, -1), DIR_E)) DrawWaterSprite(base, offset + 10, feature, tile); break;
}
/* upper corner */
switch (wa & 0x09) {
case 0: DrawWaterSprite(base, offset + 7, feature, tile); break;
case 9: if (!IsWateredTile(TILE_ADDXY(tile, -1, -1), DIR_S)) DrawWaterSprite(base, offset + 11, feature, tile); break;
}
}
/** Draw a plain sea water tile with no edges */
static void DrawSeaWater(TileIndex tile)
{
DrawGroundSprite(SPR_FLAT_WATER_TILE, PAL_NONE);
}
/** draw a canal styled water tile with dikes around */
static void DrawCanalWater(TileIndex tile)
{
SpriteID image = SPR_FLAT_WATER_TILE;
if (HasBit(_water_feature[CF_WATERSLOPE].flags, CFF_HAS_FLAT_SPRITE)) {
/* First water slope sprite is flat water. */
image = GetCanalSprite(CF_WATERSLOPE, tile);
if (image == 0) image = SPR_FLAT_WATER_TILE;
}
DrawWaterSprite(image, 0, CF_WATERSLOPE, tile);
DrawWaterEdges(true, 0, tile);
}
#include "table/water_land.h"
/**
* Draw a build sprite sequence for water tiles.
* If buildings are invisible, nothing will be drawn.
* @param ti Tile info.
* @param dtss Sprite sequence to draw.
* @param base Base sprite.
* @param offset Additional sprite offset.
* @param palette Palette to use.
*/
static void DrawWaterTileStruct(const TileInfo *ti, const DrawTileSeqStruct *dtss, SpriteID base, uint offset, PaletteID palette, CanalFeature feature)
{
/* Don't draw if buildings are invisible. */
if (IsInvisibilitySet(TO_BUILDINGS)) return;
for (; !dtss->IsTerminator(); dtss++) {
uint tile_offs = offset + dtss->image.sprite;
if (feature < CF_END) tile_offs = GetCanalSpriteOffset(feature, ti->tile, tile_offs);
AddSortableSpriteToDraw(base + tile_offs, palette,
ti->x + dtss->delta_x, ti->y + dtss->delta_y,
dtss->size_x, dtss->size_y,
dtss->size_z, ti->z + dtss->delta_z,
IsTransparencySet(TO_BUILDINGS));
}
}
/** Draw a lock tile. */
static void DrawWaterLock(const TileInfo *ti)
{
int part = GetLockPart(ti->tile);
const DrawTileSprites &dts = _lock_display_data[part][GetLockDirection(ti->tile)];
/* Draw ground sprite. */
SpriteID image = dts.ground.sprite;
SpriteID water_base = GetCanalSprite(CF_WATERSLOPE, ti->tile);
if (water_base == 0) {
/* Use default sprites. */
water_base = SPR_CANALS_BASE;
} else if (HasBit(_water_feature[CF_WATERSLOPE].flags, CFF_HAS_FLAT_SPRITE)) {
/* NewGRF supplies a flat sprite as first sprite. */
if (image == SPR_FLAT_WATER_TILE) {
image = water_base;
} else {
image++;
}
}
if (image < 5) image += water_base;
DrawGroundSprite(image, PAL_NONE);
/* Draw structures. */
uint zoffs = 0;
SpriteID base = GetCanalSprite(CF_LOCKS, ti->tile);
if (base == 0) {
/* If no custom graphics, use defaults. */
base = SPR_LOCK_BASE;
uint8 z_threshold = part == LOCK_PART_UPPER ? 8 : 0;
zoffs = ti->z > z_threshold ? 24 : 0;
}
DrawWaterTileStruct(ti, dts.seq, base, zoffs, PAL_NONE, CF_LOCKS);
}
/** Draw a ship depot tile. */
static void DrawWaterDepot(const TileInfo *ti)
{
DrawWaterClassGround(ti);
DrawWaterTileStruct(ti, _shipdepot_display_data[GetShipDepotAxis(ti->tile)][GetShipDepotPart(ti->tile)].seq, 0, 0, COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile)), CF_END);
}
static void DrawRiverWater(const TileInfo *ti)
{
SpriteID image = SPR_FLAT_WATER_TILE;
uint offset = 0;
uint edges_offset = 0;
if (ti->tileh != SLOPE_FLAT || HasBit(_water_feature[CF_RIVER_SLOPE].flags, CFF_HAS_FLAT_SPRITE)) {
image = GetCanalSprite(CF_RIVER_SLOPE, ti->tile);
if (image == 0) {
switch (ti->tileh) {
case SLOPE_NW: image = SPR_WATER_SLOPE_Y_DOWN; break;
case SLOPE_SW: image = SPR_WATER_SLOPE_X_UP; break;
case SLOPE_SE: image = SPR_WATER_SLOPE_Y_UP; break;
case SLOPE_NE: image = SPR_WATER_SLOPE_X_DOWN; break;
default: image = SPR_FLAT_WATER_TILE; break;
}
} else {
/* Flag bit 0 indicates that the first sprite is flat water. */
offset = HasBit(_water_feature[CF_RIVER_SLOPE].flags, CFF_HAS_FLAT_SPRITE) ? 1 : 0;
switch (ti->tileh) {
case SLOPE_SE: edges_offset += 12; break;
case SLOPE_NE: offset += 1; edges_offset += 24; break;
case SLOPE_SW: offset += 2; edges_offset += 36; break;
case SLOPE_NW: offset += 3; edges_offset += 48; break;
default: offset = 0; break;
}
offset = GetCanalSpriteOffset(CF_RIVER_SLOPE, ti->tile, offset);
}
}
DrawGroundSprite(image + offset, PAL_NONE);
/* Draw river edges if available. */
DrawWaterEdges(false, edges_offset, ti->tile);
}
void DrawShoreTile(Slope tileh)
{
/* Converts the enum Slope into an offset based on SPR_SHORE_BASE.
* This allows to calculate the proper sprite to display for this Slope */
static const byte tileh_to_shoresprite[32] = {
0, 1, 2, 3, 4, 16, 6, 7, 8, 9, 17, 11, 12, 13, 14, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 10, 15, 0,
};
assert(!IsHalftileSlope(tileh)); // Halftile slopes need to get handled earlier.
assert(tileh != SLOPE_FLAT); // Shore is never flat
assert((tileh != SLOPE_EW) && (tileh != SLOPE_NS)); // No suitable sprites for current flooding behaviour
DrawGroundSprite(SPR_SHORE_BASE + tileh_to_shoresprite[tileh], PAL_NONE);
}
void DrawWaterClassGround(const TileInfo *ti)
{
switch (GetWaterClass(ti->tile)) {
case WATER_CLASS_SEA: DrawSeaWater(ti->tile); break;
case WATER_CLASS_CANAL: DrawCanalWater(ti->tile); break;
case WATER_CLASS_RIVER: DrawRiverWater(ti); break;
default: NOT_REACHED();
}
}
static void DrawTile_Water(TileInfo *ti)
{
switch (GetWaterTileType(ti->tile)) {
case WATER_TILE_CLEAR:
DrawWaterClassGround(ti);
DrawBridgeMiddle(ti);
break;
case WATER_TILE_COAST: {
DrawShoreTile(ti->tileh);
DrawBridgeMiddle(ti);
break;
}
case WATER_TILE_LOCK:
DrawWaterLock(ti);
break;
case WATER_TILE_DEPOT:
DrawWaterDepot(ti);
break;
}
}
void DrawShipDepotSprite(int x, int y, Axis axis, DepotPart part)
{
const DrawTileSprites &dts = _shipdepot_display_data[axis][part];
DrawSprite(dts.ground.sprite, dts.ground.pal, x, y);
DrawOrigTileSeqInGUI(x, y, &dts, COMPANY_SPRITE_COLOUR(_local_company));
}
static int GetSlopePixelZ_Water(TileIndex tile, uint x, uint y)
{
int z;
Slope tileh = GetTilePixelSlope(tile, &z);
return z + GetPartialPixelZ(x & 0xF, y & 0xF, tileh);
}
static Foundation GetFoundation_Water(TileIndex tile, Slope tileh)
{
return FOUNDATION_NONE;
}
static void GetTileDesc_Water(TileIndex tile, TileDesc *td)
{
switch (GetWaterTileType(tile)) {
case WATER_TILE_CLEAR:
switch (GetWaterClass(tile)) {
case WATER_CLASS_SEA: td->str = STR_LAI_WATER_DESCRIPTION_WATER; break;
case WATER_CLASS_CANAL: td->str = STR_LAI_WATER_DESCRIPTION_CANAL; break;
case WATER_CLASS_RIVER: td->str = STR_LAI_WATER_DESCRIPTION_RIVER; break;
default: NOT_REACHED();
}
break;
case WATER_TILE_COAST: td->str = STR_LAI_WATER_DESCRIPTION_COAST_OR_RIVERBANK; break;
case WATER_TILE_LOCK : td->str = STR_LAI_WATER_DESCRIPTION_LOCK; break;
case WATER_TILE_DEPOT:
td->str = STR_LAI_WATER_DESCRIPTION_SHIP_DEPOT;
td->build_date = Depot::GetByTile(tile)->build_date;
break;
default: NOT_REACHED();
}
td->owner[0] = GetTileOwner(tile);
}
/**
* Handle the flooding of a vehicle. This sets the vehicle state to crashed,
* creates a newsitem and dirties the necessary windows.
* @param v The vehicle to flood.
*/
static void FloodVehicle(Vehicle *v)
{
uint pass = v->Crash(true);
AI::NewEvent(v->owner, new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_FLOODED));
Game::NewEvent(new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_FLOODED));
SetDParam(0, pass);
AddTileNewsItem(STR_NEWS_DISASTER_FLOOD_VEHICLE, NT_ACCIDENT, v->tile);
CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
if (_settings_client.sound.disaster) SndPlayVehicleFx(SND_12_EXPLOSION, v);
}
/**
* Flood a vehicle if we are allowed to flood it, i.e. when it is on the ground.
* @param v The vehicle to test for flooding.
* @param data The z of level to flood.
* @return nullptr as we always want to remove everything.
*/
static Vehicle *FloodVehicleProc(Vehicle *v, void *data)
{
if ((v->vehstatus & VS_CRASHED) != 0) return nullptr;
switch (v->type) {
default: break;
case VEH_AIRCRAFT: {
if (!IsAirportTile(v->tile) || GetTileMaxZ(v->tile) != 0) break;
if (v->subtype == AIR_SHADOW) break;
/* We compare v->z_pos against delta_z + 1 because the shadow
* is at delta_z and the actual aircraft at delta_z + 1. */
const Station *st = Station::GetByTile(v->tile);
const AirportFTAClass *airport = st->airport.GetFTA();
if (v->z_pos != airport->delta_z + 1) break;
FloodVehicle(v);
break;
}
case VEH_TRAIN:
case VEH_ROAD: {
int z = *(int*)data;
if (v->z_pos > z) break;
FloodVehicle(v->First());
break;
}
}
return nullptr;
}
/**
* Finds a vehicle to flood.
* It does not find vehicles that are already crashed on bridges, i.e. flooded.
* @param tile the tile where to find a vehicle to flood
*/
static void FloodVehicles(TileIndex tile)
{
int z = 0;
if (IsAirportTile(tile)) {
const Station *st = Station::GetByTile(tile);
for (TileIndex airport_tile : st->airport) {
if (st->TileBelongsToAirport(airport_tile)) FindVehicleOnPos(airport_tile, &z, &FloodVehicleProc);
}
/* No vehicle could be flooded on this airport anymore */
return;
}
if (!IsBridgeTile(tile)) {
FindVehicleOnPos(tile, &z, &FloodVehicleProc);
return;
}
TileIndex end = GetOtherBridgeEnd(tile);
z = GetBridgePixelHeight(tile);
FindVehicleOnPos(tile, &z, &FloodVehicleProc);
FindVehicleOnPos(end, &z, &FloodVehicleProc);
}
/**
* Returns the behaviour of a tile during flooding.
*
* @return Behaviour of the tile
*/
FloodingBehaviour GetFloodingBehaviour(TileIndex tile)
{
/* FLOOD_ACTIVE: 'single-corner-raised'-coast, sea, sea-shipdepots, sea-buoys, sea-docks (water part), rail with flooded halftile, sea-water-industries, sea-oilrigs
* FLOOD_DRYUP: coast with more than one corner raised, coast with rail-track, coast with trees
* FLOOD_PASSIVE: (not used)
* FLOOD_NONE: canals, rivers, everything else
*/
switch (GetTileType(tile)) {
case MP_WATER:
if (IsCoast(tile)) {
Slope tileh = GetTileSlope(tile);
return (IsSlopeWithOneCornerRaised(tileh) ? FLOOD_ACTIVE : FLOOD_DRYUP);
}
FALLTHROUGH;
case MP_STATION:
case MP_INDUSTRY:
case MP_OBJECT:
return (GetWaterClass(tile) == WATER_CLASS_SEA) ? FLOOD_ACTIVE : FLOOD_NONE;
case MP_RAILWAY:
if (GetRailGroundType(tile) == RAIL_GROUND_WATER) {
return (IsSlopeWithOneCornerRaised(GetTileSlope(tile)) ? FLOOD_ACTIVE : FLOOD_DRYUP);
}
return FLOOD_NONE;
case MP_TREES:
return (GetTreeGround(tile) == TREE_GROUND_SHORE ? FLOOD_DRYUP : FLOOD_NONE);
default:
return FLOOD_NONE;
}
}
/**
* Floods a tile.
*/
void DoFloodTile(TileIndex target)
{
assert(!IsTileType(target, MP_WATER));
bool flooded = false; // Will be set to true if something is changed.
Backup<CompanyID> cur_company(_current_company, OWNER_WATER, FILE_LINE);
Slope tileh = GetTileSlope(target);
if (tileh != SLOPE_FLAT) {
/* make coast.. */
switch (GetTileType(target)) {
case MP_RAILWAY: {
if (!IsPlainRail(target)) break;
FloodVehicles(target);
flooded = FloodHalftile(target);
break;
}
case MP_TREES:
if (!IsSlopeWithOneCornerRaised(tileh)) {
SetTreeGroundDensity(target, TREE_GROUND_SHORE, 3);
MarkTileDirtyByTile(target);
flooded = true;
break;
}
FALLTHROUGH;
case MP_CLEAR:
if (Command<CMD_LANDSCAPE_CLEAR>::Do(DC_EXEC, target).Succeeded()) {
MakeShore(target);
MarkTileDirtyByTile(target);
flooded = true;
}
break;
default:
break;
}
} else {
/* Flood vehicles */
FloodVehicles(target);
/* flood flat tile */
if (Command<CMD_LANDSCAPE_CLEAR>::Do(DC_EXEC, target).Succeeded()) {
MakeSea(target);
MarkTileDirtyByTile(target);
flooded = true;
}
}
if (flooded) {
/* Mark surrounding canal tiles dirty too to avoid glitches */
MarkCanalsAndRiversAroundDirty(target);
/* update signals if needed */
UpdateSignalsInBuffer();
if (IsPossibleDockingTile(target)) CheckForDockingTile(target);
}
cur_company.Restore();
}
/**
* Drys a tile up.
*/
static void DoDryUp(TileIndex tile)
{
Backup<CompanyID> cur_company(_current_company, OWNER_WATER, FILE_LINE);
switch (GetTileType(tile)) {
case MP_RAILWAY:
assert(IsPlainRail(tile));
assert(GetRailGroundType(tile) == RAIL_GROUND_WATER);
RailGroundType new_ground;
switch (GetTrackBits(tile)) {
case TRACK_BIT_UPPER: new_ground = RAIL_GROUND_FENCE_HORIZ1; break;
case TRACK_BIT_LOWER: new_ground = RAIL_GROUND_FENCE_HORIZ2; break;
case TRACK_BIT_LEFT: new_ground = RAIL_GROUND_FENCE_VERT1; break;
case TRACK_BIT_RIGHT: new_ground = RAIL_GROUND_FENCE_VERT2; break;
default: NOT_REACHED();
}
SetRailGroundType(tile, new_ground);
MarkTileDirtyByTile(tile);
break;
case MP_TREES:
SetTreeGroundDensity(tile, TREE_GROUND_GRASS, 3);
MarkTileDirtyByTile(tile);
break;
case MP_WATER:
assert(IsCoast(tile));
if (Command<CMD_LANDSCAPE_CLEAR>::Do(DC_EXEC, tile).Succeeded()) {
MakeClear(tile, CLEAR_GRASS, 3);
MarkTileDirtyByTile(tile);
}
break;
default: NOT_REACHED();
}
cur_company.Restore();
}
/**
* Let a water tile floods its diagonal adjoining tiles
* called from tunnelbridge_cmd, and by TileLoop_Industry() and TileLoop_Track()
*
* @param tile the water/shore tile that floods
*/
void TileLoop_Water(TileIndex tile)
{
if (IsTileType(tile, MP_WATER)) AmbientSoundEffect(tile);
switch (GetFloodingBehaviour(tile)) {
case FLOOD_ACTIVE:
for (Direction dir = DIR_BEGIN; dir < DIR_END; dir++) {
TileIndex dest = tile + TileOffsByDir(dir);
if (!IsValidTile(dest)) continue;
/* do not try to flood water tiles - increases performance a lot */
if (IsTileType(dest, MP_WATER)) continue;
/* TREE_GROUND_SHORE is the sign of a previous flood. */
if (IsTileType(dest, MP_TREES) && GetTreeGround(dest) == TREE_GROUND_SHORE) continue;
int z_dest;
Slope slope_dest = GetFoundationSlope(dest, &z_dest) & ~SLOPE_HALFTILE_MASK & ~SLOPE_STEEP;
if (z_dest > 0) continue;
if (!HasBit(_flood_from_dirs[slope_dest], ReverseDir(dir))) continue;
DoFloodTile(dest);
}
break;
case FLOOD_DRYUP: {
Slope slope_here = GetFoundationSlope(tile) & ~SLOPE_HALFTILE_MASK & ~SLOPE_STEEP;
for (uint dir : SetBitIterator(_flood_from_dirs[slope_here])) {
TileIndex dest = tile + TileOffsByDir((Direction)dir);
if (!IsValidTile(dest)) continue;
FloodingBehaviour dest_behaviour = GetFloodingBehaviour(dest);
if ((dest_behaviour == FLOOD_ACTIVE) || (dest_behaviour == FLOOD_PASSIVE)) return;
}
DoDryUp(tile);
break;
}
default: return;
}
}
void ConvertGroundTilesIntoWaterTiles()
{
int z;
for (TileIndex tile = 0; tile < MapSize(); ++tile) {
Slope slope = GetTileSlope(tile, &z);
if (IsTileType(tile, MP_CLEAR) && z == 0) {
/* Make both water for tiles at level 0
* and make shore, as that looks much better
* during the generation. */
switch (slope) {
case SLOPE_FLAT:
MakeSea(tile);
break;
case SLOPE_N:
case SLOPE_E:
case SLOPE_S:
case SLOPE_W:
MakeShore(tile);
break;
default:
for (uint dir : SetBitIterator(_flood_from_dirs[slope & ~SLOPE_STEEP])) {
TileIndex dest = TileAddByDir(tile, (Direction)dir);
Slope slope_dest = GetTileSlope(dest) & ~SLOPE_STEEP;
if (slope_dest == SLOPE_FLAT || IsSlopeWithOneCornerRaised(slope_dest)) {
MakeShore(tile);
break;
}
}
break;
}
}
}
}
static TrackStatus GetTileTrackStatus_Water(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
{
static const TrackBits coast_tracks[] = {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_UPPER, TRACK_BIT_NONE, TRACK_BIT_LEFT, TRACK_BIT_NONE, TRACK_BIT_NONE,
TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_NONE, TRACK_BIT_NONE, TRACK_BIT_NONE, TRACK_BIT_NONE, TRACK_BIT_NONE, TRACK_BIT_NONE};
TrackBits ts;
if (mode != TRANSPORT_WATER) return 0;
switch (GetWaterTileType(tile)) {
case WATER_TILE_CLEAR: ts = IsTileFlat(tile) ? TRACK_BIT_ALL : TRACK_BIT_NONE; break;
case WATER_TILE_COAST: ts = coast_tracks[GetTileSlope(tile) & 0xF]; break;
case WATER_TILE_LOCK: ts = DiagDirToDiagTrackBits(GetLockDirection(tile)); break;
case WATER_TILE_DEPOT: ts = AxisToTrackBits(GetShipDepotAxis(tile)); break;
default: return 0;
}
if (TileX(tile) == 0) {
/* NE border: remove tracks that connects NE tile edge */
ts &= ~(TRACK_BIT_X | TRACK_BIT_UPPER | TRACK_BIT_RIGHT);
}
if (TileY(tile) == 0) {
/* NW border: remove tracks that connects NW tile edge */
ts &= ~(TRACK_BIT_Y | TRACK_BIT_LEFT | TRACK_BIT_UPPER);
}
return CombineTrackStatus(TrackBitsToTrackdirBits(ts), TRACKDIR_BIT_NONE);
}
static bool ClickTile_Water(TileIndex tile)
{
if (GetWaterTileType(tile) == WATER_TILE_DEPOT) {
ShowDepotWindow(GetShipDepotNorthTile(tile), VEH_SHIP);
return true;
}
return false;
}
static void ChangeTileOwner_Water(TileIndex tile, Owner old_owner, Owner new_owner)
{
if (!IsTileOwner(tile, old_owner)) return;
bool is_lock_middle = IsLock(tile) && GetLockPart(tile) == LOCK_PART_MIDDLE;
/* No need to dirty company windows here, we'll redraw the whole screen anyway. */
if (is_lock_middle) Company::Get(old_owner)->infrastructure.water -= 3 * LOCK_DEPOT_TILE_FACTOR; // Lock has three parts.
if (new_owner != INVALID_OWNER) {
if (is_lock_middle) Company::Get(new_owner)->infrastructure.water += 3 * LOCK_DEPOT_TILE_FACTOR; // Lock has three parts.
/* Only subtract from the old owner here if the new owner is valid,
* otherwise we clear ship depots and canal water below. */
if (GetWaterClass(tile) == WATER_CLASS_CANAL && !is_lock_middle) {
Company::Get(old_owner)->infrastructure.water--;
Company::Get(new_owner)->infrastructure.water++;
}
if (IsShipDepot(tile)) {
Company::Get(old_owner)->infrastructure.water -= LOCK_DEPOT_TILE_FACTOR;
Company::Get(new_owner)->infrastructure.water += LOCK_DEPOT_TILE_FACTOR;
}
SetTileOwner(tile, new_owner);
return;
}
/* Remove depot */
if (IsShipDepot(tile)) Command<CMD_LANDSCAPE_CLEAR>::Do(DC_EXEC | DC_BANKRUPT, tile);
/* Set owner of canals and locks ... and also canal under dock there was before.
* Check if the new owner after removing depot isn't OWNER_WATER. */
if (IsTileOwner(tile, old_owner)) {
if (GetWaterClass(tile) == WATER_CLASS_CANAL && !is_lock_middle) Company::Get(old_owner)->infrastructure.water--;
SetTileOwner(tile, OWNER_NONE);
}
}
static VehicleEnterTileStatus VehicleEnter_Water(Vehicle *v, TileIndex tile, int x, int y)
{
return VETSB_CONTINUE;
}
static CommandCost TerraformTile_Water(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
{
/* Canals can't be terraformed */
if (IsWaterTile(tile) && IsCanal(tile)) return_cmd_error(STR_ERROR_MUST_DEMOLISH_CANAL_FIRST);
return Command<CMD_LANDSCAPE_CLEAR>::Do(flags, tile);
}
extern const TileTypeProcs _tile_type_water_procs = {
DrawTile_Water, // draw_tile_proc
GetSlopePixelZ_Water, // get_slope_z_proc
ClearTile_Water, // clear_tile_proc
nullptr, // add_accepted_cargo_proc
GetTileDesc_Water, // get_tile_desc_proc
GetTileTrackStatus_Water, // get_tile_track_status_proc
ClickTile_Water, // click_tile_proc
nullptr, // animate_tile_proc
TileLoop_Water, // tile_loop_proc
ChangeTileOwner_Water, // change_tile_owner_proc
nullptr, // add_produced_cargo_proc
VehicleEnter_Water, // vehicle_enter_tile_proc
GetFoundation_Water, // get_foundation_proc
TerraformTile_Water, // terraform_tile_proc
};
|