Files
@ r16729:482bfc615285
Branch filter:
Location: cpp/openttd-patchpack/source/src/elrail.cpp - annotation
r16729:482bfc615285
24.3 KiB
text/x-c
(svn r21472) -Fix [FS#4298] (r21459-ish): make sure the query window is only opened once per parent window / callback.
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 | r5584:545d748cc681 r9111:983de9c5a848 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r12768:980ae0491352 r15610:623a23fb6560 r15610:623a23fb6560 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r8224:194097dc7288 r5584:545d748cc681 r8111:6bed4623f3b9 r8083:8cd2123a0c7c r8398:cf5cc32ab397 r9154:6e22da499a7e r14248:a9050881acd7 r14477:752d803ed3be r8083:8cd2123a0c7c r8264:d493cb51fe8a r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r7928:a80e7e05d6c5 r5584:545d748cc681 r5584:545d748cc681 r8399:0c1166631e4a r8399:0c1166631e4a r8399:0c1166631e4a r8399:0c1166631e4a r8399:0c1166631e4a r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r8732:71277f32d877 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5587:034e5e185dc2 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r8732:71277f32d877 r8399:0c1166631e4a r8088:0596dcb18b35 r5584:545d748cc681 r9224:0340c9af9930 r5584:545d748cc681 r7370:ef5901b27aca r8563:f734b85d629c r8732:71277f32d877 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r12491:86ffd4565b88 r8732:71277f32d877 r5587:034e5e185dc2 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5587:034e5e185dc2 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r10932:d500145bd277 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11942:c9d488214c1e r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r10932:d500145bd277 r10932:d500145bd277 r15747:606d1ec00369 r10932:d500145bd277 r14477:752d803ed3be r15743:4f6cef458ee3 r14477:752d803ed3be r10932:d500145bd277 r10932:d500145bd277 r10932:d500145bd277 r10932:d500145bd277 r10932:d500145bd277 r15747:606d1ec00369 r10932:d500145bd277 r14477:752d803ed3be r15743:4f6cef458ee3 r14477:752d803ed3be r10932:d500145bd277 r10932:d500145bd277 r15610:623a23fb6560 r15610:623a23fb6560 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r6269:72b79b59078d r6269:72b79b59078d r6269:72b79b59078d r5584:545d748cc681 r8413:49df1f427ffc r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r8083:8cd2123a0c7c r7601:2327d699b237 r10932:d500145bd277 r10932:d500145bd277 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r10932:d500145bd277 r7601:2327d699b237 r7601:2327d699b237 r8528:2bfd692a054f r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r7601:2327d699b237 r15610:623a23fb6560 r15610:623a23fb6560 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r11007:c1da7f981ca4 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r7764:ffc843cdbcf7 r7764:ffc843cdbcf7 r15467:4018f376d729 r15467:4018f376d729 r15473:e643af3566d8 r15467:4018f376d729 r15467:4018f376d729 r7764:ffc843cdbcf7 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r11007:c1da7f981ca4 r5584:545d748cc681 r5587:034e5e185dc2 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r15467:4018f376d729 r15747:606d1ec00369 r10932:d500145bd277 r11007:c1da7f981ca4 r15467:4018f376d729 r15467:4018f376d729 r15467:4018f376d729 r15467:4018f376d729 r15467:4018f376d729 r15467:4018f376d729 r15467:4018f376d729 r5584:545d748cc681 r7335:93bf5f4b6ce4 r9035:c3efe4bc9f40 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r11007:c1da7f981ca4 r7534:96a72bc8d1a7 r5587:034e5e185dc2 r5584:545d748cc681 r6269:72b79b59078d r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r9035:c3efe4bc9f40 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r8083:8cd2123a0c7c r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r11007:c1da7f981ca4 r11007:c1da7f981ca4 r5584:545d748cc681 r5584:545d748cc681 r11007:c1da7f981ca4 r7931:4c17a74c399e r11008:63bfa0687162 r11007:c1da7f981ca4 r5584:545d748cc681 r11007:c1da7f981ca4 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r9035:c3efe4bc9f40 r9035:c3efe4bc9f40 r9035:c3efe4bc9f40 r9035:c3efe4bc9f40 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r8732:71277f32d877 r5584:545d748cc681 r8083:8cd2123a0c7c r5584:545d748cc681 r5584:545d748cc681 r7335:93bf5f4b6ce4 r5584:545d748cc681 r9035:c3efe4bc9f40 r9035:c3efe4bc9f40 r7764:ffc843cdbcf7 r7764:ffc843cdbcf7 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r11363:6906c490a00e r11363:6906c490a00e r5584:545d748cc681 r9035:c3efe4bc9f40 r7929:67846e70abf8 r9035:c3efe4bc9f40 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r6699:24eba46d7b0b r6269:72b79b59078d r7931:4c17a74c399e r6269:72b79b59078d r5584:545d748cc681 r5584:545d748cc681 r7928:a80e7e05d6c5 r9035:c3efe4bc9f40 r5584:545d748cc681 r5584:545d748cc681 r7928:a80e7e05d6c5 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r7928:a80e7e05d6c5 r5584:545d748cc681 r11007:c1da7f981ca4 r11363:6906c490a00e r5584:545d748cc681 r5584:545d748cc681 r10932:d500145bd277 r9035:c3efe4bc9f40 r9035:c3efe4bc9f40 r11363:6906c490a00e r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r10108:f68f755cf412 r10108:f68f755cf412 r10108:f68f755cf412 r5584:545d748cc681 r8528:2bfd692a054f r5584:545d748cc681 r5584:545d748cc681 r6699:24eba46d7b0b r5584:545d748cc681 r5584:545d748cc681 r15467:4018f376d729 r15747:606d1ec00369 r15467:4018f376d729 r15467:4018f376d729 r15467:4018f376d729 r15467:4018f376d729 r15467:4018f376d729 r15467:4018f376d729 r15467:4018f376d729 r15467:4018f376d729 r10932:d500145bd277 r5584:545d748cc681 r15153:326d7b71574b r15153:326d7b71574b r15467:4018f376d729 r15153:326d7b71574b r15153:326d7b71574b r5584:545d748cc681 r15153:326d7b71574b r15153:326d7b71574b r5584:545d748cc681 r15153:326d7b71574b r15153:326d7b71574b r15153:326d7b71574b r5584:545d748cc681 r15153:326d7b71574b r15153:326d7b71574b r15153:326d7b71574b r16339:e90c1dadabf0 r15153:326d7b71574b r15153:326d7b71574b r15153:326d7b71574b r15153:326d7b71574b r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r9034:7ec68c39aca3 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r8398:cf5cc32ab397 r8398:cf5cc32ab397 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5587:034e5e185dc2 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r15747:606d1ec00369 r10932:d500145bd277 r10932:d500145bd277 r7333:94b25d4d956c r8528:2bfd692a054f r5584:545d748cc681 r5584:545d748cc681 r15747:606d1ec00369 r10932:d500145bd277 r11363:6906c490a00e r11363:6906c490a00e r5584:545d748cc681 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7928:a80e7e05d6c5 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r10932:d500145bd277 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r8398:cf5cc32ab397 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r7928:a80e7e05d6c5 r7534:96a72bc8d1a7 r7534:96a72bc8d1a7 r10932:d500145bd277 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r6269:72b79b59078d r6269:72b79b59078d r5584:545d748cc681 r10932:d500145bd277 r10932:d500145bd277 r7534:96a72bc8d1a7 r5584:545d748cc681 r10932:d500145bd277 r5584:545d748cc681 r7333:94b25d4d956c r8528:2bfd692a054f r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r7370:ef5901b27aca r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r10994:9aeee22b7578 r5584:545d748cc681 r10207:a1fc2f2a33db r12029:5b077ec055c0 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r9070:e059c65164f3 r9070:e059c65164f3 r9070:e059c65164f3 r5584:545d748cc681 r5823:af534354d69d r5584:545d748cc681 r5823:af534354d69d r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r11356:ae9277304002 r5584:545d748cc681 r12029:5b077ec055c0 r11981:3840cc07cbe4 r5584:545d748cc681 r11356:ae9277304002 r11981:3840cc07cbe4 r11981:3840cc07cbe4 r11981:3840cc07cbe4 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r5584:545d748cc681 r9625:1ffdaa4810d3 r12029:5b077ec055c0 r9625:1ffdaa4810d3 r12290:442d5d533a57 r15478:923ac083bcd9 r9625:1ffdaa4810d3 r5584:545d748cc681 r5584:545d748cc681 r10207:a1fc2f2a33db r5584:545d748cc681 r5584:545d748cc681 r11356:ae9277304002 r11356:ae9277304002 r5584:545d748cc681 r10994:9aeee22b7578 r5584:545d748cc681 | /* $Id$ */
/*
* 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 elrail.cpp
* This file deals with displaying wires and pylons for electric railways.
* <h2>Basics</h2>
*
* <h3>Tile Types</h3>
*
* We have two different types of tiles in the drawing code:
* Normal Railway Tiles (NRTs) which can have more than one track on it, and
* Special Railways tiles (SRTs) which have only one track (like crossings, depots
* stations, etc).
*
* <h3>Location Categories</h3>
*
* All tiles are categorized into three location groups (TLG):
* Group 0: Tiles with both an even X coordinate and an even Y coordinate
* Group 1: Tiles with an even X and an odd Y coordinate
* Group 2: Tiles with an odd X and an even Y coordinate
* Group 3: Tiles with both an odd X and Y coordnate.
*
* <h3>Pylon Points</h3>
* <h4>Control Points</h4>
* A Pylon Control Point (PCP) is a position where a wire (or rather two)
* is mounted onto a pylon.
* Each NRT does contain 4 PCPs which are bitmapped to a byte
* variable and are represented by the DiagDirection enum
*
* Each track ends on two PCPs and thus requires one pylon on each end. However,
* there is one exception: Straight-and-level tracks only have one pylon every
* other tile.
*
* Now on each edge there are two PCPs: One from each adjacent tile. Both PCPs
* are merged using an OR operation (i. e. if one tile needs a PCP at the postion
* in question, both tiles get it).
*
* <h4>Position Points</h4>
* A Pylon Position Point (PPP) is a position where a pylon is located on the
* ground. Each PCP owns 8 in (45 degree steps) PPPs that are located around
* it. PPPs are represented using the Direction enum. Each track bit has PPPs
* that are impossible (because the pylon would be situated on the track) and
* some that are preferred (because the pylon would be rectangular to the track).
*
* <img src="../../elrail_tile.png">
* <img src="../../elrail_track.png">
*
*/
#include "stdafx.h"
#include "station_map.h"
#include "viewport_func.h"
#include "train.h"
#include "rail_gui.h"
#include "tunnelbridge_map.h"
#include "tunnelbridge.h"
#include "elrail_func.h"
#include "company_base.h"
#include "newgrf_railtype.h"
#include "table/elrail_data.h"
static inline TLG GetTLG(TileIndex t)
{
return (TLG)((HasBit(TileX(t), 0) << 1) + HasBit(TileY(t), 0));
}
/**
* Finds which Electrified Rail Bits are present on a given tile.
* @param t tile to check
* @param override pointer to PCP override, can be NULL
* @return trackbits of tile if it is electrified
*/
static TrackBits GetRailTrackBitsUniversal(TileIndex t, byte *override)
{
switch (GetTileType(t)) {
case MP_RAILWAY:
if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
switch (GetRailTileType(t)) {
case RAIL_TILE_NORMAL: case RAIL_TILE_SIGNALS:
return GetTrackBits(t);
default:
return TRACK_BIT_NONE;
}
break;
case MP_TUNNELBRIDGE:
if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
if (override != NULL && (IsTunnel(t) || GetTunnelBridgeLength(t, GetOtherBridgeEnd(t)) > 0)) {
*override = 1 << GetTunnelBridgeDirection(t);
}
return DiagDirToDiagTrackBits(GetTunnelBridgeDirection(t));
case MP_ROAD:
if (!IsLevelCrossing(t)) return TRACK_BIT_NONE;
if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
return GetCrossingRailBits(t);
case MP_STATION:
if (!HasStationRail(t)) return TRACK_BIT_NONE;
if (!HasCatenary(GetRailType(t))) return TRACK_BIT_NONE;
if (!IsStationTileElectrifiable(t)) return TRACK_BIT_NONE;
return TrackToTrackBits(GetRailStationTrack(t));
default:
return TRACK_BIT_NONE;
}
}
/**
* Masks out track bits when neighbouring tiles are unelectrified.
*/
static TrackBits MaskWireBits(TileIndex t, TrackBits tracks)
{
if (!IsPlainRailTile(t)) return tracks;
TrackdirBits neighbour_tdb = TRACKDIR_BIT_NONE;
for (DiagDirection d = DIAGDIR_BEGIN; d < DIAGDIR_END; d++) {
/* If the neighbor tile is either not electrified or has no tracks that can be reached
* from this tile, mark all trackdirs that can be reached from the neighbour tile
* as needing no catenary. */
RailType rt = GetTileRailType(TileAddByDiagDir(t, d));
if (rt == INVALID_RAILTYPE || !HasCatenary(rt) || (TrackStatusToTrackBits(GetTileTrackStatus(TileAddByDiagDir(t, d), TRANSPORT_RAIL, 0)) & DiagdirReachesTracks(d)) == TRACK_BIT_NONE) {
neighbour_tdb |= DiagdirReachesTrackdirs(ReverseDiagDir(d));
}
}
/* If the tracks from either a diagonal crossing or don't overlap, both
* trackdirs have to be marked to mask the corresponding track bit. Else
* one marked trackdir is enough the mask the track bit. */
TrackBits mask;
if (tracks == TRACK_BIT_CROSS || !TracksOverlap(tracks)) {
/* If the tracks form either a diagonal crossing or don't overlap, both
* trackdirs have to be marked to mask the corresponding track bit. */
mask = ~(TrackBits)((neighbour_tdb & (neighbour_tdb >> 8)) & TRACK_BIT_MASK);
/* If that results in no masked tracks and it is not a diagonal crossing,
* require only one marked trackdir to mask. */
if (tracks != TRACK_BIT_CROSS && (mask & TRACK_BIT_MASK) == TRACK_BIT_MASK) mask = ~TrackdirBitsToTrackBits(neighbour_tdb);
} else {
/* Require only one marked trackdir to mask the track. */
mask = ~TrackdirBitsToTrackBits(neighbour_tdb);
/* If that results in an empty set, require both trackdirs for diagonal track. */
if ((tracks & mask) == TRACK_BIT_NONE) {
if ((neighbour_tdb & TRACKDIR_BIT_X_NE) == 0 || (neighbour_tdb & TRACKDIR_BIT_X_SW) == 0) mask |= TRACK_BIT_X;
if ((neighbour_tdb & TRACKDIR_BIT_Y_NW) == 0 || (neighbour_tdb & TRACKDIR_BIT_Y_SE) == 0) mask |= TRACK_BIT_Y;
/* If that still is not enough, require both trackdirs for any track. */
if ((tracks & mask) == TRACK_BIT_NONE) mask = ~(TrackBits)((neighbour_tdb & (neighbour_tdb >> 8)) & TRACK_BIT_MASK);
}
}
/* Mask the tracks only if at least one track bit would remain. */
return (tracks & mask) != TRACK_BIT_NONE ? tracks & mask : tracks;
}
/**
* Get the base wire sprite to use.
*/
static inline SpriteID GetWireBase(TileIndex tile, TileContext context = TCX_NORMAL)
{
const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
SpriteID wires = GetCustomRailSprite(rti, tile, RTSG_WIRES, context);
return wires == 0 ? SPR_WIRE_BASE : wires;
}
/**
* Get the base pylon sprite to use.
*/
static inline SpriteID GetPylonBase(TileIndex tile, TileContext context = TCX_NORMAL)
{
const RailtypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
SpriteID pylons = GetCustomRailSprite(rti, tile, RTSG_PYLONS, context);
return pylons == 0 ? SPR_PYLON_BASE : pylons;
}
/**
* Corrects the tileh for certain tile types. Returns an effective tileh for the track on the tile.
* @param tile The tile to analyse
* @param *tileh the tileh
*/
static void AdjustTileh(TileIndex tile, Slope *tileh)
{
if (IsTileType(tile, MP_TUNNELBRIDGE)) {
if (IsTunnel(tile)) {
*tileh = SLOPE_STEEP; // XXX - Hack to make tunnel entrances to always have a pylon
} else if (*tileh != SLOPE_FLAT) {
*tileh = SLOPE_FLAT;
} else {
*tileh = InclinedSlope(GetTunnelBridgeDirection(tile));
}
}
}
/**
* Returns the Z position of a Pylon Control Point.
*
* @param tile The tile the pylon should stand on.
* @param PCPpos The PCP of the tile.
* @return The Z position of the PCP.
*/
static byte GetPCPElevation(TileIndex tile, DiagDirection PCPpos)
{
/* The elevation of the "pylon"-sprite should be the elevation at the PCP.
* PCPs are always on a tile edge.
*
* This position can be outside of the tile, i.e. ?_pcp_offset == TILE_SIZE > TILE_SIZE - 1.
* So we have to move it inside the tile, because if the neighboured tile has a foundation,
* that does not smoothly connect to the current tile, we will get a wrong elevation from GetSlopeZ().
*
* When we move the position inside the tile, we will get a wrong elevation if we have a slope.
* To catch all cases we round the Z position to the next (TILE_HEIGHT / 2).
* This will return the correct elevation for slopes and will also detect non-continuous elevation on edges.
*
* Also note that the result of GetSlopeZ() is very special on bridge-ramps.
*/
byte z = GetSlopeZ(TileX(tile) * TILE_SIZE + min(x_pcp_offsets[PCPpos], TILE_SIZE - 1), TileY(tile) * TILE_SIZE + min(y_pcp_offsets[PCPpos], TILE_SIZE - 1));
return (z + 2) & ~3; // this means z = (z + TILE_HEIGHT / 4) / (TILE_HEIGHT / 2) * (TILE_HEIGHT / 2);
}
/**
* Draws wires on a tunnel tile
*
* DrawTile_TunnelBridge() calls this function to draw the wires as SpriteCombine with the tunnel roof.
*
* @param ti The Tileinfo to draw the tile for
*/
void DrawCatenaryOnTunnel(const TileInfo *ti)
{
/* xmin, ymin, xmax + 1, ymax + 1 of BB */
static const int _tunnel_wire_BB[4][4] = {
{ 0, 1, 16, 15 }, // NE
{ 1, 0, 15, 16 }, // SE
{ 0, 1, 16, 15 }, // SW
{ 1, 0, 15, 16 }, // NW
};
DiagDirection dir = GetTunnelBridgeDirection(ti->tile);
SpriteID wire_base = GetWireBase(ti->tile);
const SortableSpriteStruct *sss = &CatenarySpriteData_Tunnel[dir];
const int *BB_data = _tunnel_wire_BB[dir];
AddSortableSpriteToDraw(
wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
BB_data[2] - sss->x_offset, BB_data[3] - sss->y_offset, BB_Z_SEPARATOR - sss->z_offset + 1,
GetTileZ(ti->tile) + sss->z_offset,
IsTransparencySet(TO_CATENARY),
BB_data[0] - sss->x_offset, BB_data[1] - sss->y_offset, BB_Z_SEPARATOR - sss->z_offset
);
}
/**
* Draws wires and, if required, pylons on a given tile
* @param ti The Tileinfo to draw the tile for
*/
static void DrawCatenaryRailway(const TileInfo *ti)
{
/* Pylons are placed on a tile edge, so we need to take into account
* the track configuration of 2 adjacent tiles. trackconfig[0] stores the
* current tile (home tile) while [1] holds the neighbour */
TrackBits trackconfig[TS_END];
TrackBits wireconfig[TS_END];
bool isflat[TS_END];
/* Note that ti->tileh has already been adjusted for Foundations */
Slope tileh[TS_END] = { ti->tileh, SLOPE_FLAT };
/* Half tile slopes coincide only with horizontal/vertical track.
* Faking a flat slope results in the correct sprites on positions. */
Corner halftile_corner = CORNER_INVALID;
if (IsHalftileSlope(tileh[TS_HOME])) {
halftile_corner = GetHalftileSlopeCorner(tileh[TS_HOME]);
tileh[TS_HOME] = SLOPE_FLAT;
}
TLG tlg = GetTLG(ti->tile);
byte PCPstatus = 0;
byte OverridePCP = 0;
byte PPPpreferred[DIAGDIR_END];
byte PPPallowed[DIAGDIR_END];
/* Find which rail bits are present, and select the override points.
* We don't draw a pylon:
* 1) INSIDE a tunnel (we wouldn't see it anyway)
* 2) on the "far" end of a bridge head (the one that connects to bridge middle),
* because that one is drawn on the bridge. Exception is for length 0 bridges
* which have no middle tiles */
trackconfig[TS_HOME] = GetRailTrackBitsUniversal(ti->tile, &OverridePCP);
wireconfig[TS_HOME] = MaskWireBits(ti->tile, trackconfig[TS_HOME]);
/* If a track bit is present that is not in the main direction, the track is level */
isflat[TS_HOME] = ((trackconfig[TS_HOME] & (TRACK_BIT_HORZ | TRACK_BIT_VERT)) != 0);
AdjustTileh(ti->tile, &tileh[TS_HOME]);
SpriteID pylon_normal = GetPylonBase(ti->tile);
SpriteID pylon_halftile = (halftile_corner != CORNER_INVALID) ? GetPylonBase(ti->tile, TCX_UPPER_HALFTILE) : pylon_normal;
for (DiagDirection i = DIAGDIR_BEGIN; i < DIAGDIR_END; i++) {
static const uint edge_corners[] = {
1 << CORNER_N | 1 << CORNER_E, // DIAGDIR_NE
1 << CORNER_S | 1 << CORNER_E, // DIAGDIR_SE
1 << CORNER_S | 1 << CORNER_W, // DIAGDIR_SW
1 << CORNER_N | 1 << CORNER_W, // DIAGDIR_NW
};
SpriteID pylon_base = (halftile_corner != CORNER_INVALID && HasBit(edge_corners[i], halftile_corner)) ? pylon_halftile : pylon_normal;
TileIndex neighbour = ti->tile + TileOffsByDiagDir(i);
Foundation foundation = FOUNDATION_NONE;
byte elevation = GetPCPElevation(ti->tile, i);
/* Here's one of the main headaches. GetTileSlope does not correct for possibly
* existing foundataions, so we do have to do that manually later on.*/
tileh[TS_NEIGHBOUR] = GetTileSlope(neighbour, NULL);
trackconfig[TS_NEIGHBOUR] = GetRailTrackBitsUniversal(neighbour, NULL);
wireconfig[TS_NEIGHBOUR] = MaskWireBits(neighbour, trackconfig[TS_NEIGHBOUR]);
if (IsTunnelTile(neighbour) && i != GetTunnelBridgeDirection(neighbour)) wireconfig[TS_NEIGHBOUR] = trackconfig[TS_NEIGHBOUR] = TRACK_BIT_NONE;
/* If the neighboured tile does not smoothly connect to the current tile (because of a foundation),
* we have to draw all pillars on the current tile. */
if (elevation != GetPCPElevation(neighbour, ReverseDiagDir(i))) wireconfig[TS_NEIGHBOUR] = trackconfig[TS_NEIGHBOUR] = TRACK_BIT_NONE;
isflat[TS_NEIGHBOUR] = ((trackconfig[TS_NEIGHBOUR] & (TRACK_BIT_HORZ | TRACK_BIT_VERT)) != 0);
PPPpreferred[i] = 0xFF; // We start with preferring everything (end-of-line in any direction)
PPPallowed[i] = AllowedPPPonPCP[i];
/* We cycle through all the existing tracks at a PCP and see what
* PPPs we want to have, or may not have at all */
for (uint k = 0; k < NUM_TRACKS_AT_PCP; k++) {
/* Next to us, we have a bridge head, don't worry about that one, if it shows away from us */
if (TrackSourceTile[i][k] == TS_NEIGHBOUR &&
IsBridgeTile(neighbour) &&
GetTunnelBridgeDirection(neighbour) == ReverseDiagDir(i)) {
continue;
}
/* We check whether the track in question (k) is present in the tile
* (TrackSourceTile) */
DiagDirection PCPpos = i;
if (HasBit(wireconfig[TrackSourceTile[i][k]], TracksAtPCP[i][k])) {
/* track found, if track is in the neighbour tile, adjust the number
* of the PCP for preferred/allowed determination*/
PCPpos = (TrackSourceTile[i][k] == TS_HOME) ? i : ReverseDiagDir(i);
SetBit(PCPstatus, i); // This PCP is in use
PPPpreferred[i] &= PreferredPPPofTrackAtPCP[TracksAtPCP[i][k]][PCPpos];
}
if (HasBit(trackconfig[TrackSourceTile[i][k]], TracksAtPCP[i][k])) {
PPPallowed[i] &= ~DisallowedPPPofTrackAtPCP[TracksAtPCP[i][k]][PCPpos];
}
}
/* Deactivate all PPPs if PCP is not used */
if (!HasBit(PCPstatus, i)) {
PPPpreferred[i] = 0;
PPPallowed[i] = 0;
}
/* A station is always "flat", so adjust the tileh accordingly */
if (IsTileType(neighbour, MP_STATION)) tileh[TS_NEIGHBOUR] = SLOPE_FLAT;
/* Read the foundataions if they are present, and adjust the tileh */
if (trackconfig[TS_NEIGHBOUR] != TRACK_BIT_NONE && IsTileType(neighbour, MP_RAILWAY) && HasCatenary(GetRailType(neighbour))) foundation = GetRailFoundation(tileh[TS_NEIGHBOUR], trackconfig[TS_NEIGHBOUR]);
if (IsBridgeTile(neighbour)) {
foundation = GetBridgeFoundation(tileh[TS_NEIGHBOUR], DiagDirToAxis(GetTunnelBridgeDirection(neighbour)));
}
ApplyFoundationToSlope(foundation, &tileh[TS_NEIGHBOUR]);
/* Half tile slopes coincide only with horizontal/vertical track.
* Faking a flat slope results in the correct sprites on positions. */
if (IsHalftileSlope(tileh[TS_NEIGHBOUR])) tileh[TS_NEIGHBOUR] = SLOPE_FLAT;
AdjustTileh(neighbour, &tileh[TS_NEIGHBOUR]);
/* If we have a straight (and level) track, we want a pylon only every 2 tiles
* Delete the PCP if this is the case.
* Level means that the slope is the same, or the track is flat */
if (tileh[TS_HOME] == tileh[TS_NEIGHBOUR] || (isflat[TS_HOME] && isflat[TS_NEIGHBOUR])) {
for (uint k = 0; k < NUM_IGNORE_GROUPS; k++) {
if (PPPpreferred[i] == IgnoredPCP[k][tlg][i]) ClrBit(PCPstatus, i);
}
}
/* Now decide where we draw our pylons. First try the preferred PPPs, but they may not exist.
* In that case, we try the any of the allowed ones. if they don't exist either, don't draw
* anything. Note that the preferred PPPs still contain the end-of-line markers.
* Remove those (simply by ANDing with allowed, since these markers are never allowed) */
if ((PPPallowed[i] & PPPpreferred[i]) != 0) PPPallowed[i] &= PPPpreferred[i];
if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile)) {
Track bridgetrack = GetBridgeAxis(ti->tile) == AXIS_X ? TRACK_X : TRACK_Y;
uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
if ((height <= GetTileMaxZ(ti->tile) + TILE_HEIGHT) &&
(i == PCPpositions[bridgetrack][0] || i == PCPpositions[bridgetrack][1])) {
SetBit(OverridePCP, i);
}
}
if (PPPallowed[i] != 0 && HasBit(PCPstatus, i) && !HasBit(OverridePCP, i)) {
for (Direction k = DIR_BEGIN; k < DIR_END; k++) {
byte temp = PPPorder[i][GetTLG(ti->tile)][k];
if (HasBit(PPPallowed[i], temp)) {
uint x = ti->x + x_pcp_offsets[i] + x_ppp_offsets[temp];
uint y = ti->y + y_pcp_offsets[i] + y_ppp_offsets[temp];
/* Don't build the pylon if it would be outside the tile */
if (!HasBit(OwnedPPPonPCP[i], temp)) {
/* We have a neighour that will draw it, bail out */
if (trackconfig[TS_NEIGHBOUR] != TRACK_BIT_NONE) break;
continue; // No neighbour, go looking for a better position
}
AddSortableSpriteToDraw(pylon_base + pylon_sprites[temp], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE,
elevation, IsTransparencySet(TO_CATENARY), -1, -1);
break; // We already have drawn a pylon, bail out
}
}
}
}
/* The wire above the tunnel is drawn together with the tunnel-roof (see DrawCatenaryOnTunnel()) */
if (IsTunnelTile(ti->tile)) return;
/* Don't draw a wire under a low bridge */
if (MayHaveBridgeAbove(ti->tile) && IsBridgeAbove(ti->tile) && !IsTransparencySet(TO_CATENARY)) {
uint height = GetBridgeHeight(GetNorthernBridgeEnd(ti->tile));
if (height <= GetTileMaxZ(ti->tile) + TILE_HEIGHT) return;
}
SpriteID wire_normal = GetWireBase(ti->tile);
SpriteID wire_halftile = (halftile_corner != CORNER_INVALID) ? GetWireBase(ti->tile, TCX_UPPER_HALFTILE) : wire_normal;
Track halftile_track;
switch (halftile_corner) {
case CORNER_W: halftile_track = TRACK_LEFT; break;
case CORNER_S: halftile_track = TRACK_LOWER; break;
case CORNER_E: halftile_track = TRACK_RIGHT; break;
case CORNER_N: halftile_track = TRACK_UPPER; break;
default: halftile_track = INVALID_TRACK; break;
}
/* Drawing of pylons is finished, now draw the wires */
Track t;
FOR_EACH_SET_TRACK(t, wireconfig[TS_HOME]) {
SpriteID wire_base = (t == halftile_track) ? wire_halftile : wire_normal;
byte PCPconfig = HasBit(PCPstatus, PCPpositions[t][0]) +
(HasBit(PCPstatus, PCPpositions[t][1]) << 1);
const SortableSpriteStruct *sss;
int tileh_selector = !(tileh[TS_HOME] % 3) * tileh[TS_HOME] / 3; // tileh for the slopes, 0 otherwise
assert(PCPconfig != 0); // We have a pylon on neither end of the wire, that doesn't work (since we have no sprites for that)
assert(!IsSteepSlope(tileh[TS_HOME]));
sss = &CatenarySpriteData[Wires[tileh_selector][t][PCPconfig]];
/*
* The "wire"-sprite position is inside the tile, i.e. 0 <= sss->?_offset < TILE_SIZE.
* Therefore it is safe to use GetSlopeZ() for the elevation.
* Also note that the result of GetSlopeZ() is very special for bridge-ramps.
*/
AddSortableSpriteToDraw(wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
sss->x_size, sss->y_size, sss->z_size, GetSlopeZ(ti->x + sss->x_offset, ti->y + sss->y_offset) + sss->z_offset,
IsTransparencySet(TO_CATENARY));
}
}
void DrawCatenaryOnBridge(const TileInfo *ti)
{
TileIndex end = GetSouthernBridgeEnd(ti->tile);
TileIndex start = GetOtherBridgeEnd(end);
uint length = GetTunnelBridgeLength(start, end);
uint num = GetTunnelBridgeLength(ti->tile, start) + 1;
uint height;
const SortableSpriteStruct *sss;
Axis axis = GetBridgeAxis(ti->tile);
TLG tlg = GetTLG(ti->tile);
CatenarySprite offset = (CatenarySprite)(axis == AXIS_X ? 0 : WIRE_Y_FLAT_BOTH - WIRE_X_FLAT_BOTH);
if ((length % 2) && num == length) {
/* Draw the "short" wire on the southern end of the bridge
* only needed if the length of the bridge is odd */
sss = &CatenarySpriteData[WIRE_X_FLAT_BOTH + offset];
} else {
/* Draw "long" wires on all other tiles of the bridge (one pylon every two tiles) */
sss = &CatenarySpriteData[WIRE_X_FLAT_SW + (num % 2) + offset];
}
height = GetBridgeHeight(end);
SpriteID wire_base = GetWireBase(end, TCX_ON_BRIDGE);
AddSortableSpriteToDraw(wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
sss->x_size, sss->y_size, sss->z_size, height + sss->z_offset,
IsTransparencySet(TO_CATENARY)
);
SpriteID pylon_base = GetPylonBase(end, TCX_ON_BRIDGE);
/* Finished with wires, draw pylons
* every other tile needs a pylon on the northern end */
if (num % 2) {
DiagDirection PCPpos = (axis == AXIS_X ? DIAGDIR_NE : DIAGDIR_NW);
Direction PPPpos = (axis == AXIS_X ? DIR_NW : DIR_NE);
if (HasBit(tlg, (axis == AXIS_X ? 0 : 1))) PPPpos = ReverseDir(PPPpos);
uint x = ti->x + x_pcp_offsets[PCPpos] + x_ppp_offsets[PPPpos];
uint y = ti->y + y_pcp_offsets[PCPpos] + y_ppp_offsets[PPPpos];
AddSortableSpriteToDraw(pylon_base + pylon_sprites[PPPpos], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, height, IsTransparencySet(TO_CATENARY), -1, -1);
}
/* need a pylon on the southern end of the bridge */
if (GetTunnelBridgeLength(ti->tile, start) + 1 == length) {
DiagDirection PCPpos = (axis == AXIS_X ? DIAGDIR_SW : DIAGDIR_SE);
Direction PPPpos = (axis == AXIS_X ? DIR_NW : DIR_NE);
if (HasBit(tlg, (axis == AXIS_X ? 0 : 1))) PPPpos = ReverseDir(PPPpos);
uint x = ti->x + x_pcp_offsets[PCPpos] + x_ppp_offsets[PPPpos];
uint y = ti->y + y_pcp_offsets[PCPpos] + y_ppp_offsets[PPPpos];
AddSortableSpriteToDraw(pylon_base + pylon_sprites[PPPpos], PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, height, IsTransparencySet(TO_CATENARY), -1, -1);
}
}
void DrawCatenary(const TileInfo *ti)
{
switch (GetTileType(ti->tile)) {
case MP_RAILWAY:
if (IsRailDepot(ti->tile)) {
const SortableSpriteStruct *sss = &CatenarySpriteData_Depot[GetRailDepotDirection(ti->tile)];
SpriteID wire_base = GetWireBase(ti->tile);
/* This wire is not visible with the default depot sprites */
AddSortableSpriteToDraw(
wire_base + sss->image_offset, PAL_NONE, ti->x + sss->x_offset, ti->y + sss->y_offset,
sss->x_size, sss->y_size, sss->z_size,
GetTileMaxZ(ti->tile) + sss->z_offset,
IsTransparencySet(TO_CATENARY)
);
return;
}
break;
case MP_TUNNELBRIDGE:
case MP_ROAD:
case MP_STATION:
break;
default: return;
}
DrawCatenaryRailway(ti);
}
bool SettingsDisableElrail(int32 p1)
{
Company *c;
Train *t;
bool disable = (p1 != 0);
/* we will now walk through all electric train engines and change their railtypes if it is the wrong one*/
const RailType old_railtype = disable ? RAILTYPE_ELECTRIC : RAILTYPE_RAIL;
const RailType new_railtype = disable ? RAILTYPE_RAIL : RAILTYPE_ELECTRIC;
/* walk through all train engines */
Engine *e;
FOR_ALL_ENGINES_OF_TYPE(e, VEH_TRAIN) {
RailVehicleInfo *rv_info = &e->u.rail;
/* if it is an electric rail engine and its railtype is the wrong one */
if (rv_info->engclass == 2 && rv_info->railtype == old_railtype) {
/* change it to the proper one */
rv_info->railtype = new_railtype;
}
}
/* when disabling elrails, make sure that all existing trains can run on
* normal rail too */
if (disable) {
FOR_ALL_TRAINS(t) {
if (t->railtype == RAILTYPE_ELECTRIC) {
/* this railroad vehicle is now compatible only with elrail,
* so add there also normal rail compatibility */
t->compatible_railtypes |= RAILTYPES_RAIL;
t->railtype = RAILTYPE_RAIL;
SetBit(t->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL);
}
}
}
/* Fix the total power and acceleration for trains */
FOR_ALL_TRAINS(t) {
/* power and acceleration is cached only for front engines */
if (t->IsFrontEngine()) {
t->ConsistChanged(true);
}
}
FOR_ALL_COMPANIES(c) c->avail_railtypes = GetCompanyRailtypes(c->index);
/* This resets the _last_built_railtype, which will be invalid for electric
* rails. It may have unintended consequences if that function is ever
* extended, though. */
ReinitGuiAfterToggleElrail(disable);
return true;
}
|