OpenTTD Source: src/rail_cmd.cpp Source File

OpenTTD Source 14.1

rail_cmd.cpp
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1 /*
2 * This file is part of OpenTTD.
3 * 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.
4 * 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.
5 * 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/>.
6 */
7
10 #include "stdafx.h"
11 #include "viewport_func.h"
12 #include "command_func.h"
13 #include "depot_base.h"
14 #include "pathfinder/yapf/yapf_cache.h"
15 #include "newgrf_debug.h"
16 #include "newgrf_railtype.h"
17 #include "train.h"
18 #include "autoslope.h"
19 #include "water.h"
20 #include "tunnelbridge_map.h"
21 #include "vehicle_func.h"
22 #include "sound_func.h"
23 #include "tunnelbridge.h"
24 #include "elrail_func.h"
25 #include "town.h"
26 #include "pbs.h"
27 #include "company_base.h"
28 #include "core/backup_type.hpp"
29 #include "core/container_func.hpp"
30 #include "timer/timer_game_calendar.h"
31 #include "strings_func.h"
32 #include "company_gui.h"
33 #include "object_map.h"
34 #include "rail_cmd.h"
35 #include "landscape_cmd.h"
36
37 #include "table/strings.h"
38 #include "table/railtypes.h"
39 #include "table/track_land.h"
40
41 #include "safeguards.h"
42
44 typedef std::vector<Train *> TrainList;
45
46 RailTypeInfo _railtypes[RAILTYPE_END];
47 std::vector<RailType> _sorted_railtypes;
48 RailTypes _railtypes_hidden_mask;
49
51 enum SignalOffsets {
52 SIGNAL_TO_SOUTHWEST,
53 SIGNAL_TO_NORTHEAST,
54 SIGNAL_TO_SOUTHEAST,
55 SIGNAL_TO_NORTHWEST,
56 SIGNAL_TO_EAST,
57 SIGNAL_TO_WEST,
58 SIGNAL_TO_SOUTH,
59 SIGNAL_TO_NORTH,
60 };
61
65 void ResetRailTypes()
66 {
67 static_assert(lengthof(_original_railtypes) <= lengthof(_railtypes));
68
69 auto insert = std::copy(std::begin(_original_railtypes), std::end(_original_railtypes), std::begin(_railtypes));
70 std::fill(insert, std::end(_railtypes), RailTypeInfo{});
71
72 _railtypes_hidden_mask = RAILTYPES_NONE;
73 }
74
75 void ResolveRailTypeGUISprites(RailTypeInfo *rti)
76 {
77 SpriteID cursors_base = GetCustomRailSprite(rti, INVALID_TILE, RTSG_CURSORS);
78 if (cursors_base != 0) {
79 rti->gui_sprites.build_ns_rail = cursors_base + 0;
80 rti->gui_sprites.build_x_rail = cursors_base + 1;
81 rti->gui_sprites.build_ew_rail = cursors_base + 2;
82 rti->gui_sprites.build_y_rail = cursors_base + 3;
83 rti->gui_sprites.auto_rail = cursors_base + 4;
84 rti->gui_sprites.build_depot = cursors_base + 5;
85 rti->gui_sprites.build_tunnel = cursors_base + 6;
86 rti->gui_sprites.convert_rail = cursors_base + 7;
87 rti->cursor.rail_ns = cursors_base + 8;
88 rti->cursor.rail_swne = cursors_base + 9;
89 rti->cursor.rail_ew = cursors_base + 10;
90 rti->cursor.rail_nwse = cursors_base + 11;
91 rti->cursor.autorail = cursors_base + 12;
92 rti->cursor.depot = cursors_base + 13;
93 rti->cursor.tunnel = cursors_base + 14;
94 rti->cursor.convert = cursors_base + 15;
95 }
96
97 /* Array of default GUI signal sprite numbers. */
98 const SpriteID _signal_lookup[2][SIGTYPE_END] = {
99 {SPR_IMG_SIGNAL_ELECTRIC_NORM, SPR_IMG_SIGNAL_ELECTRIC_ENTRY, SPR_IMG_SIGNAL_ELECTRIC_EXIT,
100 SPR_IMG_SIGNAL_ELECTRIC_COMBO, SPR_IMG_SIGNAL_ELECTRIC_PBS, SPR_IMG_SIGNAL_ELECTRIC_PBS_OWAY},
101
102 {SPR_IMG_SIGNAL_SEMAPHORE_NORM, SPR_IMG_SIGNAL_SEMAPHORE_ENTRY, SPR_IMG_SIGNAL_SEMAPHORE_EXIT,
103 SPR_IMG_SIGNAL_SEMAPHORE_COMBO, SPR_IMG_SIGNAL_SEMAPHORE_PBS, SPR_IMG_SIGNAL_SEMAPHORE_PBS_OWAY},
104 };
105
106 for (SignalType type = SIGTYPE_BLOCK; type < SIGTYPE_END; type = (SignalType)(type + 1)) {
107 for (SignalVariant var = SIG_ELECTRIC; var <= SIG_SEMAPHORE; var = (SignalVariant)(var + 1)) {
108 SpriteID red = GetCustomSignalSprite(rti, INVALID_TILE, type, var, SIGNAL_STATE_RED, true);
109 SpriteID green = GetCustomSignalSprite(rti, INVALID_TILE, type, var, SIGNAL_STATE_GREEN, true);
110 rti->gui_sprites.signals[type][var][0] = (red != 0) ? red + SIGNAL_TO_SOUTH : _signal_lookup[var][type];
111 rti->gui_sprites.signals[type][var][1] = (green != 0) ? green + SIGNAL_TO_SOUTH : _signal_lookup[var][type] + 1;
112 }
113 }
114 }
115
122 static bool CompareRailTypes(const RailType &first, const RailType &second)
123 {
124 return GetRailTypeInfo(first)->sorting_order < GetRailTypeInfo(second)->sorting_order;
125 }
126
130 void InitRailTypes()
131 {
132 for (RailType rt = RAILTYPE_BEGIN; rt != RAILTYPE_END; rt++) {
133 RailTypeInfo *rti = &_railtypes[rt];
134 ResolveRailTypeGUISprites(rti);
135 if (HasBit(rti->flags, RTF_HIDDEN)) SetBit(_railtypes_hidden_mask, rt);
136 }
137
138 _sorted_railtypes.clear();
139 for (RailType rt = RAILTYPE_BEGIN; rt != RAILTYPE_END; rt++) {
140 if (_railtypes[rt].label != 0 && !HasBit(_railtypes_hidden_mask, rt)) {
141 _sorted_railtypes.push_back(rt);
142 }
143 }
144 std::sort(_sorted_railtypes.begin(), _sorted_railtypes.end(), CompareRailTypes);
145 }
146
150 RailType AllocateRailType(RailTypeLabel label)
151 {
152 for (RailType rt = RAILTYPE_BEGIN; rt != RAILTYPE_END; rt++) {
153 RailTypeInfo *rti = &_railtypes[rt];
154
155 if (rti->label == 0) {
156 /* Set up new rail type */
157 *rti = _original_railtypes[RAILTYPE_RAIL];
158 rti->label = label;
159 rti->alternate_labels.clear();
160
161 /* Make us compatible with ourself. */
162 rti->powered_railtypes = (RailTypes)(1LL << rt);
163 rti->compatible_railtypes = (RailTypes)(1LL << rt);
164
165 /* We also introduce ourself. */
166 rti->introduces_railtypes = (RailTypes)(1LL << rt);
167
168 /* Default sort order; order of allocation, but with some
169 * offsets so it's easier for NewGRF to pick a spot without
170 * changing the order of other (original) rail types.
171 * The << is so you can place other railtypes in between the
172 * other railtypes, the 7 is to be able to place something
173 * before the first (default) rail type. */
174 rti->sorting_order = rt << 4 | 7;
175 return rt;
176 }
177 }
178
179 return INVALID_RAILTYPE;
180 }
181
182 static const byte _track_sloped_sprites[14] = {
183 14, 15, 22, 13,
184 0, 21, 17, 12,
185 23, 0, 18, 20,
186 19, 16
187 };
188
189
190 /* 4
191 * ---------
192 * |\ /|
193 * | \ 1/ |
194 * | \ / |
195 * | \ / |
196 * 16| \ |32
197 * | / \2 |
198 * | / \ |
199 * | / \ |
200 * |/ \|
201 * ---------
202 * 8
203 */
204
205
206
207 /* MAP2 byte: abcd???? => Signal On? Same coding as map3lo
208 * MAP3LO byte: abcd???? => Signal Exists?
209 * a and b are for diagonals, upper and left,
210 * one for each direction. (ie a == NE->SW, b ==
211 * SW->NE, or v.v., I don't know. b and c are
212 * similar for lower and right.
213 * MAP2 byte: ????abcd => Type of ground.
214 * MAP3LO byte: ????abcd => Type of rail.
215 * MAP5: 00abcdef => rail
216 * 01abcdef => rail w/ signals
217 * 10uuuuuu => unused
218 * 11uuuudd => rail depot
219 */
220
229 static CommandCost EnsureNoTrainOnTrack(TileIndex tile, Track track)
230 {
231 TrackBits rail_bits = TrackToTrackBits(track);
232 return EnsureNoTrainOnTrackBits(tile, rail_bits);
233 }
234
241 static CommandCost CheckTrackCombination(TileIndex tile, TrackBits to_build)
242 {
243 if (!IsPlainRail(tile)) return_cmd_error(STR_ERROR_IMPOSSIBLE_TRACK_COMBINATION);
244
245 /* So, we have a tile with tracks on it (and possibly signals). Let's see
246 * what tracks first */
247 TrackBits current = GetTrackBits(tile); // The current track layout.
248 TrackBits future = current | to_build; // The track layout we want to build.
249
250 /* Are we really building something new? */
251 if (current == future) {
252 /* Nothing new is being built */
253 return_cmd_error(STR_ERROR_ALREADY_BUILT);
254 }
255
256 /* Normally, we may overlap and any combination is valid */
257 return CommandCost();
258 }
259
260
262 static const TrackBits _valid_tracks_without_foundation[15] = {
263 TRACK_BIT_ALL,
264 TRACK_BIT_RIGHT,
265 TRACK_BIT_UPPER,
266 TRACK_BIT_X,
267
268 TRACK_BIT_LEFT,
269 TRACK_BIT_NONE,
270 TRACK_BIT_Y,
271 TRACK_BIT_LOWER,
272
273 TRACK_BIT_LOWER,
274 TRACK_BIT_Y,
275 TRACK_BIT_NONE,
276 TRACK_BIT_LEFT,
277
278 TRACK_BIT_X,
279 TRACK_BIT_UPPER,
280 TRACK_BIT_RIGHT,
281 };
282
284 static const TrackBits _valid_tracks_on_leveled_foundation[15] = {
285 TRACK_BIT_NONE,
286 TRACK_BIT_LEFT,
287 TRACK_BIT_LOWER,
288 TRACK_BIT_Y | TRACK_BIT_LOWER | TRACK_BIT_LEFT,
289
290 TRACK_BIT_RIGHT,
291 TRACK_BIT_ALL,
292 TRACK_BIT_X | TRACK_BIT_LOWER | TRACK_BIT_RIGHT,
293 TRACK_BIT_ALL,
294
295 TRACK_BIT_UPPER,
296 TRACK_BIT_X | TRACK_BIT_UPPER | TRACK_BIT_LEFT,
297 TRACK_BIT_ALL,
298 TRACK_BIT_ALL,
299
300 TRACK_BIT_Y | TRACK_BIT_UPPER | TRACK_BIT_RIGHT,
301 TRACK_BIT_ALL,
302 TRACK_BIT_ALL
303 };
304
312 Foundation GetRailFoundation(Slope tileh, TrackBits bits)
313 {
314 if (bits == TRACK_BIT_NONE) return FOUNDATION_NONE;
315
316 if (IsSteepSlope(tileh)) {
317 /* Test for inclined foundations */
318 if (bits == TRACK_BIT_X) return FOUNDATION_INCLINED_X;
319 if (bits == TRACK_BIT_Y) return FOUNDATION_INCLINED_Y;
320
321 /* Get higher track */
322 Corner highest_corner = GetHighestSlopeCorner(tileh);
323 TrackBits higher_track = CornerToTrackBits(highest_corner);
324
325 /* Only higher track? */
326 if (bits == higher_track) return HalftileFoundation(highest_corner);
327
328 /* Overlap with higher track? */
329 if (TracksOverlap(bits | higher_track)) return FOUNDATION_INVALID;
330
331 /* either lower track or both higher and lower track */
332 return ((bits & higher_track) != 0 ? FOUNDATION_STEEP_BOTH : FOUNDATION_STEEP_LOWER);
333 } else {
334 if ((~_valid_tracks_without_foundation[tileh] & bits) == 0) return FOUNDATION_NONE;
335
336 bool valid_on_leveled = ((~_valid_tracks_on_leveled_foundation[tileh] & bits) == 0);
337
338 Corner track_corner;
339 switch (bits) {
340 case TRACK_BIT_LEFT: track_corner = CORNER_W; break;
341 case TRACK_BIT_LOWER: track_corner = CORNER_S; break;
342 case TRACK_BIT_RIGHT: track_corner = CORNER_E; break;
343 case TRACK_BIT_UPPER: track_corner = CORNER_N; break;
344
345 case TRACK_BIT_HORZ:
346 if (tileh == SLOPE_N) return HalftileFoundation(CORNER_N);
347 if (tileh == SLOPE_S) return HalftileFoundation(CORNER_S);
348 return (valid_on_leveled ? FOUNDATION_LEVELED : FOUNDATION_INVALID);
349
350 case TRACK_BIT_VERT:
351 if (tileh == SLOPE_W) return HalftileFoundation(CORNER_W);
352 if (tileh == SLOPE_E) return HalftileFoundation(CORNER_E);
353 return (valid_on_leveled ? FOUNDATION_LEVELED : FOUNDATION_INVALID);
354
355 case TRACK_BIT_X:
356 if (IsSlopeWithOneCornerRaised(tileh)) return FOUNDATION_INCLINED_X;
357 return (valid_on_leveled ? FOUNDATION_LEVELED : FOUNDATION_INVALID);
358
359 case TRACK_BIT_Y:
360 if (IsSlopeWithOneCornerRaised(tileh)) return FOUNDATION_INCLINED_Y;
361 return (valid_on_leveled ? FOUNDATION_LEVELED : FOUNDATION_INVALID);
362
363 default:
364 return (valid_on_leveled ? FOUNDATION_LEVELED : FOUNDATION_INVALID);
365 }
366 /* Single diagonal track */
367
368 /* Track must be at least valid on leveled foundation */
369 if (!valid_on_leveled) return FOUNDATION_INVALID;
370
371 /* If slope has three raised corners, build leveled foundation */
372 if (IsSlopeWithThreeCornersRaised(tileh)) return FOUNDATION_LEVELED;
373
374 /* If neighboured corners of track_corner are lowered, build halftile foundation */
375 if ((tileh & SlopeWithThreeCornersRaised(OppositeCorner(track_corner))) == SlopeWithOneCornerRaised(track_corner)) return HalftileFoundation(track_corner);
376
377 /* else special anti-zig-zag foundation */
378 return SpecialRailFoundation(track_corner);
379 }
380 }
381
382
392 static CommandCost CheckRailSlope(Slope tileh, TrackBits rail_bits, TrackBits existing, TileIndex tile)
393 {
394 /* don't allow building on the lower side of a coast */
395 if (GetFloodingBehaviour(tile) != FLOOD_NONE) {
396 if (!IsSteepSlope(tileh) && ((~_valid_tracks_on_leveled_foundation[tileh] & (rail_bits | existing)) != 0)) return_cmd_error(STR_ERROR_CAN_T_BUILD_ON_WATER);
397 }
398
399 Foundation f_new = GetRailFoundation(tileh, rail_bits | existing);
400
401 /* check track/slope combination */
402 if ((f_new == FOUNDATION_INVALID) ||
403 ((f_new != FOUNDATION_NONE) && (!_settings_game.construction.build_on_slopes))) {
404 return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
405 }
406
407 Foundation f_old = GetRailFoundation(tileh, existing);
408 return CommandCost(EXPENSES_CONSTRUCTION, f_new != f_old ? _price[PR_BUILD_FOUNDATION] : (Money)0);
409 }
410
411 /* Validate functions for rail building */
412 static inline bool ValParamTrackOrientation(Track track)
413 {
414 return IsValidTrack(track);
415 }
416
426 CommandCost CmdBuildSingleRail(DoCommandFlag flags, TileIndex tile, RailType railtype, Track track, bool auto_remove_signals)
427 {
428 CommandCost cost(EXPENSES_CONSTRUCTION);
429
430 if (!ValParamRailType(railtype) || !ValParamTrackOrientation(track)) return CMD_ERROR;
431
432 Slope tileh = GetTileSlope(tile);
433 TrackBits trackbit = TrackToTrackBits(track);
434
435 switch (GetTileType(tile)) {
436 case MP_RAILWAY: {
437 CommandCost ret = CheckTileOwnership(tile);
438 if (ret.Failed()) return ret;
439
440 if (!IsPlainRail(tile)) return Command<CMD_LANDSCAPE_CLEAR>::Do(flags, tile); // just get appropriate error message
441
442 if (!IsCompatibleRail(GetRailType(tile), railtype)) return_cmd_error(STR_ERROR_IMPOSSIBLE_TRACK_COMBINATION);
443
444 ret = CheckTrackCombination(tile, trackbit);
445 if (ret.Succeeded()) ret = EnsureNoTrainOnTrack(tile, track);
446 if (ret.Failed()) return ret;
447
448 ret = CheckRailSlope(tileh, trackbit, GetTrackBits(tile), tile);
449 if (ret.Failed()) return ret;
450 cost.AddCost(ret);
451
452 if (HasSignals(tile) && TracksOverlap(GetTrackBits(tile) | TrackToTrackBits(track))) {
453 /* If adding the new track causes any overlap, all signals must be removed first */
454 if (!auto_remove_signals) return_cmd_error(STR_ERROR_MUST_REMOVE_SIGNALS_FIRST);
455
456 for (Track track_it = TRACK_BEGIN; track_it < TRACK_END; track_it++) {
457 if (HasTrack(tile, track_it) && HasSignalOnTrack(tile, track_it)) {
458 CommandCost ret_remove_signals = Command<CMD_REMOVE_SINGLE_SIGNAL>::Do(flags, tile, track_it);
459 if (ret_remove_signals.Failed()) return ret_remove_signals;
460 cost.AddCost(ret_remove_signals);
461 }
462 }
463 }
464
465 /* If the rail types don't match, try to convert only if engines of
466 * the new rail type are not powered on the present rail type and engines of
467 * the present rail type are powered on the new rail type. */
468 if (GetRailType(tile) != railtype && !HasPowerOnRail(railtype, GetRailType(tile))) {
469 if (HasPowerOnRail(GetRailType(tile), railtype)) {
470 ret = Command<CMD_CONVERT_RAIL>::Do(flags, tile, tile, railtype, false);
471 if (ret.Failed()) return ret;
472 cost.AddCost(ret);
473 } else {
474 return CMD_ERROR;
475 }
476 }
477
478 if (flags & DC_EXEC) {
479 SetRailGroundType(tile, RAIL_GROUND_BARREN);
480 TrackBits bits = GetTrackBits(tile);
481 SetTrackBits(tile, bits | trackbit);
482 /* Subtract old infrastructure count. */
483 uint pieces = CountBits(bits);
484 if (TracksOverlap(bits)) pieces *= pieces;
485 Company::Get(GetTileOwner(tile))->infrastructure.rail[GetRailType(tile)] -= pieces;
486 /* Add new infrastructure count. */
487 pieces = CountBits(bits | trackbit);
488 if (TracksOverlap(bits | trackbit)) pieces *= pieces;
489 Company::Get(GetTileOwner(tile))->infrastructure.rail[GetRailType(tile)] += pieces;
490 DirtyCompanyInfrastructureWindows(GetTileOwner(tile));
491 }
492 break;
493 }
494
495 case MP_ROAD: {
496 /* Level crossings may only be built on these slopes */
497 if (!HasBit(VALID_LEVEL_CROSSING_SLOPES, tileh)) return_cmd_error(STR_ERROR_LAND_SLOPED_IN_WRONG_DIRECTION);
498
499 if (!_settings_game.construction.crossing_with_competitor && _current_company != OWNER_DEITY) {
500 CommandCost ret = CheckTileOwnership(tile);
501 if (ret.Failed()) return ret;
502 }
503
504 CommandCost ret = EnsureNoVehicleOnGround(tile);
505 if (ret.Failed()) return ret;
506
507 if (IsNormalRoad(tile)) {
508 if (HasRoadWorks(tile)) return_cmd_error(STR_ERROR_ROAD_WORKS_IN_PROGRESS);
509
510 if (GetDisallowedRoadDirections(tile) != DRD_NONE) return_cmd_error(STR_ERROR_CROSSING_ON_ONEWAY_ROAD);
511
512 if (RailNoLevelCrossings(railtype)) return_cmd_error(STR_ERROR_CROSSING_DISALLOWED_RAIL);
513
514 RoadType roadtype_road = GetRoadTypeRoad(tile);
515 RoadType roadtype_tram = GetRoadTypeTram(tile);
516
517 if (roadtype_road != INVALID_ROADTYPE && RoadNoLevelCrossing(roadtype_road)) return_cmd_error(STR_ERROR_CROSSING_DISALLOWED_ROAD);
518 if (roadtype_tram != INVALID_ROADTYPE && RoadNoLevelCrossing(roadtype_tram)) return_cmd_error(STR_ERROR_CROSSING_DISALLOWED_ROAD);
519
520 RoadBits road = GetRoadBits(tile, RTT_ROAD);
521 RoadBits tram = GetRoadBits(tile, RTT_TRAM);
522 if ((track == TRACK_X && ((road | tram) & ROAD_X) == 0) ||
523 (track == TRACK_Y && ((road | tram) & ROAD_Y) == 0)) {
524 Owner road_owner = GetRoadOwner(tile, RTT_ROAD);
525 Owner tram_owner = GetRoadOwner(tile, RTT_TRAM);
526 /* Disallow breaking end-of-line of someone else
527 * so trams can still reverse on this tile. */
528 if (Company::IsValidID(tram_owner) && HasExactlyOneBit(tram)) {
529 ret = CheckOwnership(tram_owner);
530 if (ret.Failed()) return ret;
531 }
532
533 uint num_new_road_pieces = (road != ROAD_NONE) ? 2 - CountBits(road) : 0;
534 if (num_new_road_pieces > 0) {
535 cost.AddCost(num_new_road_pieces * RoadBuildCost(roadtype_road));
536 }
537
538 uint num_new_tram_pieces = (tram != ROAD_NONE) ? 2 - CountBits(tram) : 0;
539 if (num_new_tram_pieces > 0) {
540 cost.AddCost(num_new_tram_pieces * RoadBuildCost(roadtype_tram));
541 }
542
543 if (flags & DC_EXEC) {
544 MakeRoadCrossing(tile, road_owner, tram_owner, _current_company, (track == TRACK_X ? AXIS_Y : AXIS_X), railtype, roadtype_road, roadtype_tram, GetTownIndex(tile));
545 UpdateLevelCrossing(tile, false);
546 MarkDirtyAdjacentLevelCrossingTiles(tile, GetCrossingRoadAxis(tile));
547 Company::Get(_current_company)->infrastructure.rail[railtype] += LEVELCROSSING_TRACKBIT_FACTOR;
548 DirtyCompanyInfrastructureWindows(_current_company);
549 if (num_new_road_pieces > 0 && Company::IsValidID(road_owner)) {
550 Company::Get(road_owner)->infrastructure.road[roadtype_road] += num_new_road_pieces;
551 DirtyCompanyInfrastructureWindows(road_owner);
552 }
553 if (num_new_tram_pieces > 0 && Company::IsValidID(tram_owner)) {
554 Company::Get(tram_owner)->infrastructure.road[roadtype_tram] += num_new_tram_pieces;
555 DirtyCompanyInfrastructureWindows(tram_owner);
556 }
557 }
558 break;
559 }
560 }
561
562 if (IsLevelCrossing(tile) && GetCrossingRailBits(tile) == trackbit) {
563 return_cmd_error(STR_ERROR_ALREADY_BUILT);
564 }
565 [[fallthrough]];
566 }
567
568 default: {
569 /* Will there be flat water on the lower halftile? */
570 bool water_ground = IsTileType(tile, MP_WATER) && IsSlopeWithOneCornerRaised(tileh);
571
572 CommandCost ret = CheckRailSlope(tileh, trackbit, TRACK_BIT_NONE, tile);
573 if (ret.Failed()) return ret;
574 cost.AddCost(ret);
575
576 ret = Command<CMD_LANDSCAPE_CLEAR>::Do(flags, tile);
577 if (ret.Failed()) return ret;
578 cost.AddCost(ret);
579
580 if (water_ground) {
581 cost.AddCost(-_price[PR_CLEAR_WATER]);
582 cost.AddCost(_price[PR_CLEAR_ROUGH]);
583 }
584
585 if (flags & DC_EXEC) {
586 MakeRailNormal(tile, _current_company, trackbit, railtype);
587 if (water_ground) {
588 SetRailGroundType(tile, RAIL_GROUND_WATER);
589 if (IsPossibleDockingTile(tile)) CheckForDockingTile(tile);
590 }
591 Company::Get(_current_company)->infrastructure.rail[railtype]++;
592 DirtyCompanyInfrastructureWindows(_current_company);
593 }
594 break;
595 }
596 }
597
598 if (flags & DC_EXEC) {
599 MarkTileDirtyByTile(tile);
600 AddTrackToSignalBuffer(tile, track, _current_company);
601 YapfNotifyTrackLayoutChange(tile, track);
602 }
603
604 cost.AddCost(RailBuildCost(railtype));
605 return cost;
606 }
607
615 CommandCost CmdRemoveSingleRail(DoCommandFlag flags, TileIndex tile, Track track)
616 {
617 CommandCost cost(EXPENSES_CONSTRUCTION);
618 bool crossing = false;
619
620 if (!ValParamTrackOrientation(track)) return CMD_ERROR;
621 TrackBits trackbit = TrackToTrackBits(track);
622
623 /* Need to read tile owner now because it may change when the rail is removed
624 * Also, in case of floods, _current_company != owner
625 * There may be invalid tiletype even in exec run (when removing long track),
626 * so do not call GetTileOwner(tile) in any case here */
627 Owner owner = INVALID_OWNER;
628
629 Train *v = nullptr;
630
631 switch (GetTileType(tile)) {
632 case MP_ROAD: {
633 if (!IsLevelCrossing(tile) || GetCrossingRailBits(tile) != trackbit) return_cmd_error(STR_ERROR_THERE_IS_NO_RAILROAD_TRACK);
634
635 if (_current_company != OWNER_WATER) {
636 CommandCost ret = CheckTileOwnership(tile);
637 if (ret.Failed()) return ret;
638 }
639
640 if (!(flags & DC_BANKRUPT)) {
641 CommandCost ret = EnsureNoVehicleOnGround(tile);
642 if (ret.Failed()) return ret;
643 }
644
645 cost.AddCost(RailClearCost(GetRailType(tile)));
646
647 if (flags & DC_EXEC) {
648 UpdateAdjacentLevelCrossingTilesOnLevelCrossingRemoval(tile, GetCrossingRoadAxis(tile));
649
650 if (HasReservedTracks(tile, trackbit)) {
651 v = GetTrainForReservation(tile, track);
652 if (v != nullptr) FreeTrainTrackReservation(v);
653 }
654
655 owner = GetTileOwner(tile);
656 Company::Get(owner)->infrastructure.rail[GetRailType(tile)] -= LEVELCROSSING_TRACKBIT_FACTOR;
657 DirtyCompanyInfrastructureWindows(owner);
658 MakeRoadNormal(tile, GetCrossingRoadBits(tile), GetRoadTypeRoad(tile), GetRoadTypeTram(tile), GetTownIndex(tile), GetRoadOwner(tile, RTT_ROAD), GetRoadOwner(tile, RTT_TRAM));
659 DeleteNewGRFInspectWindow(GSF_RAILTYPES, tile.base());
660 }
661 break;
662 }
663
664 case MP_RAILWAY: {
665 TrackBits present;
666 /* There are no rails present at depots. */
667 if (!IsPlainRail(tile)) return_cmd_error(STR_ERROR_THERE_IS_NO_RAILROAD_TRACK);
668
669 if (_current_company != OWNER_WATER) {
670 CommandCost ret = CheckTileOwnership(tile);
671 if (ret.Failed()) return ret;
672 }
673
674 CommandCost ret = EnsureNoTrainOnTrack(tile, track);
675 if (ret.Failed()) return ret;
676
677 present = GetTrackBits(tile);
678 if ((present & trackbit) == 0) return_cmd_error(STR_ERROR_THERE_IS_NO_RAILROAD_TRACK);
679 if (present == (TRACK_BIT_X | TRACK_BIT_Y)) crossing = true;
680
681 cost.AddCost(RailClearCost(GetRailType(tile)));
682
683 /* Charge extra to remove signals on the track, if they are there */
684 if (HasSignalOnTrack(tile, track)) {
685 cost.AddCost(Command<CMD_REMOVE_SINGLE_SIGNAL>::Do(flags, tile, track));
686 }
687
688 if (flags & DC_EXEC) {
689 if (HasReservedTracks(tile, trackbit)) {
690 v = GetTrainForReservation(tile, track);
691 if (v != nullptr) FreeTrainTrackReservation(v);
692 }
693
694 owner = GetTileOwner(tile);
695
696 /* Subtract old infrastructure count. */
697 uint pieces = CountBits(present);
698 if (TracksOverlap(present)) pieces *= pieces;
699 Company::Get(owner)->infrastructure.rail[GetRailType(tile)] -= pieces;
700 /* Add new infrastructure count. */
701 present ^= trackbit;
702 pieces = CountBits(present);
703 if (TracksOverlap(present)) pieces *= pieces;
704 Company::Get(owner)->infrastructure.rail[GetRailType(tile)] += pieces;
705 DirtyCompanyInfrastructureWindows(owner);
706
707 if (present == 0) {
708 Slope tileh = GetTileSlope(tile);
709 /* If there is flat water on the lower halftile, convert the tile to shore so the water remains */
710 if (GetRailGroundType(tile) == RAIL_GROUND_WATER && IsSlopeWithOneCornerRaised(tileh)) {
711 bool docking = IsDockingTile(tile);
712 MakeShore(tile);
713 SetDockingTile(tile, docking);
714 } else {
715 DoClearSquare(tile);
716 }
717 DeleteNewGRFInspectWindow(GSF_RAILTYPES, tile.base());
718 } else {
719 SetTrackBits(tile, present);
720 SetTrackReservation(tile, GetRailReservationTrackBits(tile) & present);
721 }
722 }
723 break;
724 }
725
726 default: return_cmd_error(STR_ERROR_THERE_IS_NO_RAILROAD_TRACK);
727 }
728
729 if (flags & DC_EXEC) {
730 /* if we got that far, 'owner' variable is set correctly */
731 assert(Company::IsValidID(owner));
732
733 MarkTileDirtyByTile(tile);
734 if (crossing) {
735 /* crossing is set when only TRACK_BIT_X and TRACK_BIT_Y are set. As we
736 * are removing one of these pieces, we'll need to update signals for
737 * both directions explicitly, as after the track is removed it won't
738 * 'connect' with the other piece. */
739 AddTrackToSignalBuffer(tile, TRACK_X, owner);
740 AddTrackToSignalBuffer(tile, TRACK_Y, owner);
741 YapfNotifyTrackLayoutChange(tile, TRACK_X);
742 YapfNotifyTrackLayoutChange(tile, TRACK_Y);
743 } else {
744 AddTrackToSignalBuffer(tile, track, owner);
745 YapfNotifyTrackLayoutChange(tile, track);
746 }
747
748 if (v != nullptr) TryPathReserve(v, true);
749 }
750
751 return cost;
752 }
753
754
762 bool FloodHalftile(TileIndex t)
763 {
764 assert(IsPlainRailTile(t));
765
766 bool flooded = false;
767 if (GetRailGroundType(t) == RAIL_GROUND_WATER) return flooded;
768
769 Slope tileh = GetTileSlope(t);
770 TrackBits rail_bits = GetTrackBits(t);
771
772 if (IsSlopeWithOneCornerRaised(tileh)) {
773 TrackBits lower_track = CornerToTrackBits(OppositeCorner(GetHighestSlopeCorner(tileh)));
774
775 TrackBits to_remove = lower_track & rail_bits;
776 if (to_remove != 0) {
777 Backup<CompanyID> cur_company(_current_company, OWNER_WATER, FILE_LINE);
778 flooded = Command<CMD_REMOVE_SINGLE_RAIL>::Do(DC_EXEC, t, FindFirstTrack(to_remove)).Succeeded();
779 cur_company.Restore();
780 if (!flooded) return flooded; // not yet floodable
781 rail_bits = rail_bits & ~to_remove;
782 if (rail_bits == 0) {
783 MakeShore(t);
784 MarkTileDirtyByTile(t);
785 return flooded;
786 }
787 }
788
789 if (IsNonContinuousFoundation(GetRailFoundation(tileh, rail_bits))) {
790 flooded = true;
791 SetRailGroundType(t, RAIL_GROUND_WATER);
792 MarkTileDirtyByTile(t);
793 }
794 } else {
795 /* Make shore on steep slopes and 'three-corners-raised'-slopes. */
796 if (ApplyFoundationToSlope(GetRailFoundation(tileh, rail_bits), &tileh) == 0) {
797 if (IsSteepSlope(tileh) || IsSlopeWithThreeCornersRaised(tileh)) {
798 flooded = true;
799 SetRailGroundType(t, RAIL_GROUND_WATER);
800 MarkTileDirtyByTile(t);
801 }
802 }
803 }
804 return flooded;
805 }
806
807 static const TileIndexDiffC _trackdelta[] = {
808 { -1, 0 }, { 0, 1 }, { -1, 0 }, { 0, 1 }, { 1, 0 }, { 0, 1 },
809 { 0, 0 },
810 { 0, 0 },
811 { 1, 0 }, { 0, -1 }, { 0, -1 }, { 1, 0 }, { 0, -1 }, { -1, 0 },
812 { 0, 0 },
813 { 0, 0 }
814 };
815
816
817 static CommandCost ValidateAutoDrag(Trackdir *trackdir, TileIndex start, TileIndex end)
818 {
819 int x = TileX(start);
820 int y = TileY(start);
821 int ex = TileX(end);
822 int ey = TileY(end);
823
824 if (!ValParamTrackOrientation(TrackdirToTrack(*trackdir))) return CMD_ERROR;
825
826 /* calculate delta x,y from start to end tile */
827 int dx = ex - x;
828 int dy = ey - y;
829
830 /* calculate delta x,y for the first direction */
831 int trdx = _trackdelta[*trackdir].x;
832 int trdy = _trackdelta[*trackdir].y;
833
834 if (!IsDiagonalTrackdir(*trackdir)) {
835 trdx += _trackdelta[*trackdir ^ 1].x;
836 trdy += _trackdelta[*trackdir ^ 1].y;
837 }
838
839 /* validate the direction */
840 while ((trdx <= 0 && dx > 0) ||
841 (trdx >= 0 && dx < 0) ||
842 (trdy <= 0 && dy > 0) ||
843 (trdy >= 0 && dy < 0)) {
844 if (!HasBit(*trackdir, 3)) { // first direction is invalid, try the other
845 SetBit(*trackdir, 3); // reverse the direction
846 trdx = -trdx;
847 trdy = -trdy;
848 } else { // other direction is invalid too, invalid drag
849 return CMD_ERROR;
850 }
851 }
852
853 /* (for diagonal tracks, this is already made sure of by above test), but:
854 * for non-diagonal tracks, check if the start and end tile are on 1 line */
855 if (!IsDiagonalTrackdir(*trackdir)) {
856 trdx = _trackdelta[*trackdir].x;
857 trdy = _trackdelta[*trackdir].y;
858 if (abs(dx) != abs(dy) && abs(dx) + abs(trdy) != abs(dy) + abs(trdx)) return CMD_ERROR;
859 }
860
861 return CommandCost();
862 }
863
876 static CommandCost CmdRailTrackHelper(DoCommandFlag flags, TileIndex tile, TileIndex end_tile, RailType railtype, Track track, bool remove, bool auto_remove_signals, bool fail_on_obstacle)
877 {
878 CommandCost total_cost(EXPENSES_CONSTRUCTION);
879
880 if ((!remove && !ValParamRailType(railtype)) || !ValParamTrackOrientation(track)) return CMD_ERROR;
881 if (end_tile >= Map::Size() || tile >= Map::Size()) return CMD_ERROR;
882
883 Trackdir trackdir = TrackToTrackdir(track);
884
885 CommandCost ret = ValidateAutoDrag(&trackdir, tile, end_tile);
886 if (ret.Failed()) return ret;
887
888 bool had_success = false;
889 CommandCost last_error = CMD_ERROR;
890 for (;;) {
891 ret = remove ? Command<CMD_REMOVE_SINGLE_RAIL>::Do(flags, tile, TrackdirToTrack(trackdir)) : Command<CMD_BUILD_SINGLE_RAIL>::Do(flags, tile, railtype, TrackdirToTrack(trackdir), auto_remove_signals);
892
893 if (ret.Failed()) {
894 last_error = ret;
895 if (last_error.GetErrorMessage() != STR_ERROR_ALREADY_BUILT && !remove) {
896 if (fail_on_obstacle) return last_error;
897 if (had_success) break; // Keep going if we haven't constructed any rail yet, skipping the start of the drag
898 }
899
900 /* Ownership errors are more important. */
901 if (last_error.GetErrorMessage() == STR_ERROR_OWNED_BY && remove) break;
902 } else {
903 had_success = true;
904 total_cost.AddCost(ret);
905 }
906
907 if (tile == end_tile) break;
908
909 tile += ToTileIndexDiff(_trackdelta[trackdir]);
910
911 /* toggle railbit for the non-diagonal tracks */
912 if (!IsDiagonalTrackdir(trackdir)) ToggleBit(trackdir, 0);
913 }
914
915 if (had_success) return total_cost;
916 return last_error;
917 }
918
932 CommandCost CmdBuildRailroadTrack(DoCommandFlag flags, TileIndex end_tile, TileIndex start_tile, RailType railtype, Track track, bool auto_remove_signals, bool fail_on_obstacle)
933 {
934 return CmdRailTrackHelper(flags, start_tile, end_tile, railtype, track, false, auto_remove_signals, fail_on_obstacle);
935 }
936
947 CommandCost CmdRemoveRailroadTrack(DoCommandFlag flags, TileIndex end_tile, TileIndex start_tile, Track track)
948 {
949 return CmdRailTrackHelper(flags, start_tile, end_tile, INVALID_RAILTYPE, track, true, false, false);
950 }
951
963 CommandCost CmdBuildTrainDepot(DoCommandFlag flags, TileIndex tile, RailType railtype, DiagDirection dir)
964 {
965 /* check railtype and valid direction for depot (0 through 3), 4 in total */
966 if (!ValParamRailType(railtype) || !IsValidDiagDirection(dir)) return CMD_ERROR;
967
968 Slope tileh = GetTileSlope(tile);
969
970 CommandCost cost(EXPENSES_CONSTRUCTION);
971
972 /* Prohibit construction if
973 * The tile is non-flat AND
974 * 1) build-on-slopes is disabled
975 * 2) the tile is steep i.e. spans two height levels
976 * 3) the exit points in the wrong direction
977 */
978
979 if (tileh != SLOPE_FLAT) {
980 if (!_settings_game.construction.build_on_slopes || !CanBuildDepotByTileh(dir, tileh)) {
981 return_cmd_error(STR_ERROR_FLAT_LAND_REQUIRED);
982 }
983 cost.AddCost(_price[PR_BUILD_FOUNDATION]);
984 }
985
986 /* Allow the user to rotate the depot instead of having to destroy it and build it again */
987 bool rotate_existing_depot = false;
988 if (IsRailDepotTile(tile) && railtype == GetRailType(tile)) {
989 CommandCost ret = CheckTileOwnership(tile);
990 if (ret.Failed()) return ret;
991
992 if (dir == GetRailDepotDirection(tile)) return_cmd_error(STR_ERROR_ALREADY_BUILT);
993
994 ret = EnsureNoVehicleOnGround(tile);
995 if (ret.Failed()) return ret;
996
997 rotate_existing_depot = true;
998 }
999
1000 if (!rotate_existing_depot) {
1001 cost.AddCost(Command<CMD_LANDSCAPE_CLEAR>::Do(flags, tile));
1002 if (cost.Failed()) return cost;
1003
1004 if (IsBridgeAbove(tile)) return_cmd_error(STR_ERROR_MUST_DEMOLISH_BRIDGE_FIRST);
1005
1006 if (!Depot::CanAllocateItem()) return CMD_ERROR;
1007 }
1008
1009 if (flags & DC_EXEC) {
1010 if (rotate_existing_depot) {
1011 SetRailDepotExitDirection(tile, dir);
1012 } else {
1013 Depot *d = new Depot(tile);
1014 d->build_date = TimerGameCalendar::date;
1015
1016 MakeRailDepot(tile, _current_company, d->index, dir, railtype);
1017 MakeDefaultName(d);
1018
1019 Company::Get(_current_company)->infrastructure.rail[railtype]++;
1020 DirtyCompanyInfrastructureWindows(_current_company);
1021 }
1022
1023 MarkTileDirtyByTile(tile);
1024 AddSideToSignalBuffer(tile, INVALID_DIAGDIR, _current_company);
1025 YapfNotifyTrackLayoutChange(tile, DiagDirToDiagTrack(dir));
1026 }
1027
1028 cost.AddCost(_price[PR_BUILD_DEPOT_TRAIN]);
1029 cost.AddCost(RailBuildCost(railtype));
1030 return cost;
1031 }
1032
1052 CommandCost CmdBuildSingleSignal(DoCommandFlag flags, TileIndex tile, Track track, SignalType sigtype, SignalVariant sigvar, bool convert_signal, bool skip_existing_signals, bool ctrl_pressed, SignalType cycle_start, SignalType cycle_stop, uint8_t num_dir_cycle, byte signals_copy)
1053 {
1054 if (sigtype > SIGTYPE_LAST || sigvar > SIG_SEMAPHORE) return CMD_ERROR;
1055 if (cycle_start > cycle_stop || cycle_stop > SIGTYPE_LAST) return CMD_ERROR;
1056
1057 if (ctrl_pressed) sigvar = (SignalVariant)(sigvar ^ SIG_SEMAPHORE);
1058
1059 /* You can only build signals on plain rail tiles, and the selected track must exist */
1060 if (!ValParamTrackOrientation(track) || !IsPlainRailTile(tile) ||
1061 !HasTrack(tile, track)) {
1062 return_cmd_error(STR_ERROR_THERE_IS_NO_RAILROAD_TRACK);
1063 }
1064 /* Protect against invalid signal copying */
1065 if (signals_copy != 0 && (signals_copy & SignalOnTrack(track)) == 0) return CMD_ERROR;
1066
1067 CommandCost ret = CheckTileOwnership(tile);
1068 if (ret.Failed()) return ret;
1069
1070 /* See if this is a valid track combination for signals (no overlap) */
1071 if (TracksOverlap(GetTrackBits(tile))) return_cmd_error(STR_ERROR_NO_SUITABLE_RAILROAD_TRACK);
1072
1073 /* In case we don't want to change an existing signal, return without error. */
1074 if (skip_existing_signals && HasSignalOnTrack(tile, track)) return CommandCost();
1075
1076 /* you can not convert a signal if no signal is on track */
1077 if (convert_signal && !HasSignalOnTrack(tile, track)) return_cmd_error(STR_ERROR_THERE_ARE_NO_SIGNALS);
1078
1079 CommandCost cost;
1080 if (!HasSignalOnTrack(tile, track)) {
1081 /* build new signals */
1082 cost = CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_SIGNALS]);
1083 } else {
1084 if (signals_copy != 0 && sigvar != GetSignalVariant(tile, track)) {
1085 /* convert signals <-> semaphores */
1086 cost = CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_SIGNALS] + _price[PR_CLEAR_SIGNALS]);
1087
1088 } else if (convert_signal) {
1089 /* convert button pressed */
1090 if (ctrl_pressed || GetSignalVariant(tile, track) != sigvar) {
1091 /* it costs money to change signal variant (light or semaphore) */
1092 cost = CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_SIGNALS] + _price[PR_CLEAR_SIGNALS]);
1093 } else {
1094 /* it is free to change signal type (block, exit, entry, combo, path, etc) */
1095 cost = CommandCost();
1096 }
1097
1098 } else {
1099 /* it is free to change orientation or number of signals on the tile (for block/presignals which allow signals in both directions) */
1100 cost = CommandCost();
1101 }
1102 }
1103
1104 if (flags & DC_EXEC) {
1105 Train *v = nullptr;
1106 /* The new/changed signal could block our path. As this can lead to
1107 * stale reservations, we clear the path reservation here and try
1108 * to redo it later on. */
1109 if (HasReservedTracks(tile, TrackToTrackBits(track))) {
1110 v = GetTrainForReservation(tile, track);
1111 if (v != nullptr) FreeTrainTrackReservation(v);
1112 }
1113
1114 if (!HasSignals(tile)) {
1115 /* there are no signals at all on this tile yet */
1116 SetHasSignals(tile, true);
1117 SetSignalStates(tile, 0xF); // all signals are on
1118 SetPresentSignals(tile, 0); // no signals built by default
1119 SetSignalType(tile, track, sigtype);
1120 SetSignalVariant(tile, track, sigvar);
1121 }
1122
1123 /* Subtract old signal infrastructure count. */
1124 Company::Get(GetTileOwner(tile))->infrastructure.signal -= CountBits(GetPresentSignals(tile));
1125
1126 if (signals_copy == 0) {
1127 if (!HasSignalOnTrack(tile, track)) {
1128 /* build new signals */
1129 SetPresentSignals(tile, GetPresentSignals(tile) | (IsPbsSignal(sigtype) ? KillFirstBit(SignalOnTrack(track)) : SignalOnTrack(track)));
1130 SetSignalType(tile, track, sigtype);
1131 SetSignalVariant(tile, track, sigvar);
1132 while (num_dir_cycle-- > 0) CycleSignalSide(tile, track);
1133 } else {
1134 if (convert_signal) {
1135 /* convert signal button pressed */
1136 if (ctrl_pressed) {
1137 /* toggle the present signal variant: SIG_ELECTRIC <-> SIG_SEMAPHORE */
1138 SetSignalVariant(tile, track, (GetSignalVariant(tile, track) == SIG_ELECTRIC) ? SIG_SEMAPHORE : SIG_ELECTRIC);
1139 /* Query current signal type so the check for PBS signals below works. */
1140 sigtype = GetSignalType(tile, track);
1141 } else {
1142 /* convert the present signal to the chosen type and variant */
1143 SetSignalType(tile, track, sigtype);
1144 SetSignalVariant(tile, track, sigvar);
1145 if (IsPbsSignal(sigtype) && (GetPresentSignals(tile) & SignalOnTrack(track)) == SignalOnTrack(track)) {
1146 SetPresentSignals(tile, (GetPresentSignals(tile) & ~SignalOnTrack(track)) | KillFirstBit(SignalOnTrack(track)));
1147 }
1148 }
1149
1150 } else if (ctrl_pressed) {
1151 /* cycle between cycle_start and cycle_end */
1152 sigtype = (SignalType)(GetSignalType(tile, track) + 1);
1153
1154 if (sigtype < cycle_start || sigtype > cycle_stop) sigtype = cycle_start;
1155
1156 SetSignalType(tile, track, sigtype);
1157 if (IsPbsSignal(sigtype) && (GetPresentSignals(tile) & SignalOnTrack(track)) == SignalOnTrack(track)) {
1158 SetPresentSignals(tile, (GetPresentSignals(tile) & ~SignalOnTrack(track)) | KillFirstBit(SignalOnTrack(track)));
1159 }
1160 } else {
1161 /* cycle the signal side: both -> left -> right -> both -> ... */
1162 CycleSignalSide(tile, track);
1163 /* Query current signal type so the check for PBS signals below works. */
1164 sigtype = GetSignalType(tile, track);
1165 }
1166 }
1167 } else {
1168 /* If CmdBuildManySignals is called with copying signals, just copy the
1169 * direction of the first signal given as parameter by CmdBuildManySignals */
1170 SetPresentSignals(tile, (GetPresentSignals(tile) & ~SignalOnTrack(track)) | (signals_copy & SignalOnTrack(track)));
1171 SetSignalVariant(tile, track, sigvar);
1172 SetSignalType(tile, track, sigtype);
1173 }
1174
1175 /* Add new signal infrastructure count. */
1176 Company::Get(GetTileOwner(tile))->infrastructure.signal += CountBits(GetPresentSignals(tile));
1177 DirtyCompanyInfrastructureWindows(GetTileOwner(tile));
1178
1179 if (IsPbsSignal(sigtype)) {
1180 /* PBS signals should show red unless they are on reserved tiles without a train. */
1181 uint mask = GetPresentSignals(tile) & SignalOnTrack(track);
1182 SetSignalStates(tile, (GetSignalStates(tile) & ~mask) | ((HasBit(GetRailReservationTrackBits(tile), track) && EnsureNoVehicleOnGround(tile).Succeeded() ? UINT_MAX : 0) & mask));
1183 }
1184 MarkTileDirtyByTile(tile);
1185 AddTrackToSignalBuffer(tile, track, _current_company);
1186 YapfNotifyTrackLayoutChange(tile, track);
1187 if (v != nullptr && v->track != TRACK_BIT_DEPOT) {
1188 /* Extend the train's path if it's not stopped or loading, or not at a safe position. */
1189 if (!(((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) || v->current_order.IsType(OT_LOADING)) ||
1190 !IsSafeWaitingPosition(v, v->tile, v->GetVehicleTrackdir(), true, _settings_game.pf.forbid_90_deg)) {
1191 TryPathReserve(v, true);
1192 }
1193 }
1194 }
1195
1196 return cost;
1197 }
1198
1199 static bool AdvanceSignalAutoFill(TileIndex &tile, Trackdir &trackdir, bool remove)
1200 {
1201 /* We only process starting tiles of tunnels or bridges so jump to the other end before moving further. */
1202 if (IsTileType(tile, MP_TUNNELBRIDGE)) tile = GetOtherTunnelBridgeEnd(tile);
1203
1204 tile = AddTileIndexDiffCWrap(tile, _trackdelta[trackdir]);
1205 if (tile == INVALID_TILE) return false;
1206
1207 /* Check for track bits on the new tile */
1208 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(GetTileTrackStatus(tile, TRANSPORT_RAIL, 0));
1209
1210 if (TracksOverlap(TrackdirBitsToTrackBits(trackdirbits))) return false;
1211 trackdirbits &= TrackdirReachesTrackdirs(trackdir);
1212
1213 /* No track bits, must stop */
1214 if (trackdirbits == TRACKDIR_BIT_NONE) return false;
1215
1216 /* Get the first track dir */
1217 trackdir = RemoveFirstTrackdir(&trackdirbits);
1218
1219 /* Any left? It's a junction so we stop */
1220 if (trackdirbits != TRACKDIR_BIT_NONE) return false;
1221
1222 switch (GetTileType(tile)) {
1223 case MP_RAILWAY:
1224 if (IsRailDepot(tile)) return false;
1225 if (!remove && HasSignalOnTrack(tile, TrackdirToTrack(trackdir))) return false;
1226 break;
1227
1228 case MP_ROAD:
1229 if (!IsLevelCrossing(tile)) return false;
1230 break;
1231
1232 case MP_TUNNELBRIDGE: {
1233 if (GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL) return false;
1234 if (GetTunnelBridgeDirection(tile) != TrackdirToExitdir(trackdir)) return false;
1235 break;
1236 }
1237
1238 default: return false;
1239 }
1240 return true;
1241 }
1242
1258 static CommandCost CmdSignalTrackHelper(DoCommandFlag flags, TileIndex tile, TileIndex end_tile, Track track, SignalType sigtype, SignalVariant sigvar, bool mode, bool remove, bool autofill, bool minimise_gaps, int signal_density)
1259 {
1260 CommandCost total_cost(EXPENSES_CONSTRUCTION);
1261
1262 if (end_tile >= Map::Size() || !ValParamTrackOrientation(track)) return CMD_ERROR;
1263 if (signal_density == 0 || signal_density > 20) return CMD_ERROR;
1264 if (!remove && (sigtype > SIGTYPE_LAST || sigvar > SIG_SEMAPHORE)) return CMD_ERROR;
1265
1266 if (!IsPlainRailTile(tile)) return_cmd_error(STR_ERROR_THERE_IS_NO_RAILROAD_TRACK);
1267 TileIndex start_tile = tile;
1268
1269 /* Interpret signal_density as the logical length of said amount of tiles in X/Y direction. */
1270 signal_density *= TILE_AXIAL_DISTANCE;
1271
1272 Trackdir trackdir = TrackToTrackdir(track);
1273 CommandCost ret = ValidateAutoDrag(&trackdir, tile, end_tile);
1274 if (ret.Failed()) return ret;
1275
1276 track = TrackdirToTrack(trackdir); // trackdir might have changed, keep track in sync
1277 Trackdir start_trackdir = trackdir;
1278
1279 /* Must start on a valid track to be able to avoid loops */
1280 if (!HasTrack(tile, track)) return CMD_ERROR;
1281
1282 byte signals;
1283 /* copy the signal-style of the first rail-piece if existing */
1284 if (HasSignalOnTrack(tile, track)) {
1285 signals = GetPresentSignals(tile) & SignalOnTrack(track);
1286 assert(signals != 0);
1287
1288 /* copy signal/semaphores style (independent of CTRL) */
1289 sigvar = GetSignalVariant(tile, track);
1290
1291 sigtype = GetSignalType(tile, track);
1292 /* Don't but copy entry or exit-signal type */
1293 if (sigtype == SIGTYPE_ENTRY || sigtype == SIGTYPE_EXIT) sigtype = SIGTYPE_BLOCK;
1294 } else { // no signals exist, drag a two-way signal stretch
1295 signals = IsPbsSignal(sigtype) ? SignalAlongTrackdir(trackdir) : SignalOnTrack(track);
1296 }
1297
1298 byte signal_dir = 0;
1299 if (signals & SignalAlongTrackdir(trackdir)) SetBit(signal_dir, 0);
1300 if (signals & SignalAgainstTrackdir(trackdir)) SetBit(signal_dir, 1);
1301
1302 /* signal_ctr - amount of tiles already processed
1303 * last_used_ctr - amount of tiles before previously placed signal
1304 * signals_density - setting to put signal on every Nth tile (double space on |, -- tracks)
1305 * last_suitable_ctr - amount of tiles before last possible signal place
1306 * last_suitable_tile - last tile where it is possible to place a signal
1307 * last_suitable_trackdir - trackdir of the last tile
1308 **********
1309 * trackdir - trackdir to build with autorail
1310 * semaphores - semaphores or signals
1311 * signals - is there a signal/semaphore on the first tile, copy its style (two-way/single-way)
1312 * and convert all others to semaphore/signal
1313 * remove - 1 remove signals, 0 build signals */
1314 int signal_ctr = 0;
1315 int last_used_ctr = -signal_density; // to force signal at first tile
1316 int last_suitable_ctr = 0;
1317 TileIndex last_suitable_tile = INVALID_TILE;
1318 Trackdir last_suitable_trackdir = INVALID_TRACKDIR;
1319 CommandCost last_error = CMD_ERROR;
1320 bool had_success = false;
1321 auto build_signal = [&](TileIndex tile, Trackdir trackdir, bool test_only) {
1322 /* Pick the correct orientation for the track direction */
1323 byte signals = 0;
1324 if (HasBit(signal_dir, 0)) signals |= SignalAlongTrackdir(trackdir);
1325 if (HasBit(signal_dir, 1)) signals |= SignalAgainstTrackdir(trackdir);
1326
1327 DoCommandFlag do_flags = test_only ? flags & ~DC_EXEC : flags;
1328 CommandCost ret = remove ? Command<CMD_REMOVE_SINGLE_SIGNAL>::Do(do_flags, tile, TrackdirToTrack(trackdir)) : Command<CMD_BUILD_SINGLE_SIGNAL>::Do(do_flags, tile, TrackdirToTrack(trackdir), sigtype, sigvar, false, signal_ctr == 0, mode, SIGTYPE_BLOCK, SIGTYPE_BLOCK, 0, signals);
1329
1330 if (test_only) return ret.Succeeded();
1331
1332 if (ret.Succeeded()) {
1333 had_success = true;
1334 total_cost.AddCost(ret);
1335 } else {
1336 /* The "No railway" error is the least important one. */
1337 if (ret.GetErrorMessage() != STR_ERROR_THERE_IS_NO_RAILROAD_TRACK ||
1338 last_error.GetErrorMessage() == INVALID_STRING_ID) {
1339 last_error = ret;
1340 }
1341 }
1342 return ret.Succeeded();
1343 };
1344
1345 for (;;) {
1346 if (remove) {
1347 /* In remove mode last_* stuff doesn't matter, we simply try to clear every tile. */
1348 build_signal(tile, trackdir, false);
1349 } else if (minimise_gaps) {
1350 /* We're trying to minimize gaps wherever possible, so keep track of last suitable
1351 * position and use it if current gap exceeds required signal density. */
1352
1353 if (signal_ctr > last_used_ctr + signal_density && last_suitable_tile != INVALID_TILE) {
1354 /* We overshot so build a signal in last good location. */
1355 if (build_signal(last_suitable_tile, last_suitable_trackdir, false)) {
1356 last_suitable_tile = INVALID_TILE;
1357 last_used_ctr = last_suitable_ctr;
1358 }
1359 }
1360
1361 if (signal_ctr == last_used_ctr + signal_density) {
1362 /* Current gap matches the required density, build a signal. */
1363 if (build_signal(tile, trackdir, false)) {
1364 last_used_ctr = signal_ctr;
1365 last_suitable_tile = INVALID_TILE;
1366 }
1367 } else {
1368 /* Test tile for a potential signal spot. */
1369 if (build_signal(tile, trackdir, true)) {
1370 last_suitable_tile = tile;
1371 last_suitable_ctr = signal_ctr;
1372 last_suitable_trackdir = trackdir;
1373 }
1374 }
1375 } else if (signal_ctr >= last_used_ctr + signal_density) {
1376 /* We're always keeping regular interval between signals so doesn't matter whether we succeed or not. */
1377 build_signal(tile, trackdir, false);
1378 last_used_ctr = signal_ctr;
1379 }
1380
1381 if (autofill) {
1382 switch (GetTileType(tile)) {
1383 case MP_RAILWAY:
1384 signal_ctr += (IsDiagonalTrackdir(trackdir) ? TILE_AXIAL_DISTANCE : TILE_CORNER_DISTANCE);
1385 break;
1386
1387 case MP_ROAD:
1388 signal_ctr += TILE_AXIAL_DISTANCE;
1389 break;
1390
1391 case MP_TUNNELBRIDGE: {
1392 uint len = (GetTunnelBridgeLength(tile, GetOtherTunnelBridgeEnd(tile)) + 2) * TILE_AXIAL_DISTANCE;
1393 if (remove || minimise_gaps) {
1394 signal_ctr += len;
1395 } else {
1396 /* To keep regular interval we need to emulate placing signals on a bridge.
1397 * We start with TILE_AXIAL_DISTANCE as one bridge tile gets processed in the main loop. */
1398 signal_ctr += TILE_AXIAL_DISTANCE;
1399 for (uint i = TILE_AXIAL_DISTANCE; i < len; i += TILE_AXIAL_DISTANCE) {
1400 if (signal_ctr >= last_used_ctr + signal_density) last_used_ctr = signal_ctr;
1401 signal_ctr += TILE_AXIAL_DISTANCE;
1402 }
1403 }
1404 break;
1405 }
1406
1407 default: break;
1408 }
1409
1410 if (!AdvanceSignalAutoFill(tile, trackdir, remove)) break;
1411
1412 /* Prevent possible loops */
1413 if (tile == start_tile && trackdir == start_trackdir) break;
1414 } else {
1415 if (tile == end_tile) break;
1416
1417 signal_ctr += (IsDiagonalTrackdir(trackdir) ? TILE_AXIAL_DISTANCE : TILE_CORNER_DISTANCE);
1418 /* toggle railbit for the non-diagonal tracks (|, -- tracks) */
1419
1420 tile += ToTileIndexDiff(_trackdelta[trackdir]);
1421 if (!IsDiagonalTrackdir(trackdir)) ToggleBit(trackdir, 0);
1422 }
1423 }
1424
1425 /* We may end up with the current gap exceeding the signal density so fix that if needed. */
1426 if (!remove && minimise_gaps && signal_ctr > last_used_ctr + signal_density && last_suitable_tile != INVALID_TILE) {
1427 build_signal(last_suitable_tile, last_suitable_trackdir, false);
1428 }
1429
1430 return had_success ? total_cost : last_error;
1431 }
1432
1449 CommandCost CmdBuildSignalTrack(DoCommandFlag flags, TileIndex tile, TileIndex end_tile, Track track, SignalType sigtype, SignalVariant sigvar, bool mode, bool autofill, bool minimise_gaps, byte signal_density)
1450 {
1451 return CmdSignalTrackHelper(flags, tile, end_tile, track, sigtype, sigvar, mode, false, autofill, minimise_gaps, signal_density);
1452 }
1453
1461 CommandCost CmdRemoveSingleSignal(DoCommandFlag flags, TileIndex tile, Track track)
1462 {
1463 if (!ValParamTrackOrientation(track) || !IsPlainRailTile(tile) || !HasTrack(tile, track)) {
1464 return_cmd_error(STR_ERROR_THERE_IS_NO_RAILROAD_TRACK);
1465 }
1466 if (!HasSignalOnTrack(tile, track)) {
1467 return_cmd_error(STR_ERROR_THERE_ARE_NO_SIGNALS);
1468 }
1469
1470 /* Only water can remove signals from anyone */
1471 if (_current_company != OWNER_WATER) {
1472 CommandCost ret = CheckTileOwnership(tile);
1473 if (ret.Failed()) return ret;
1474 }
1475
1476 /* Do it? */
1477 if (flags & DC_EXEC) {
1478 Train *v = nullptr;
1479 if (HasReservedTracks(tile, TrackToTrackBits(track))) {
1480 v = GetTrainForReservation(tile, track);
1481 } else if (IsPbsSignal(GetSignalType(tile, track))) {
1482 /* PBS signal, might be the end of a path reservation. */
1483 Trackdir td = TrackToTrackdir(track);
1484 for (int i = 0; v == nullptr && i < 2; i++, td = ReverseTrackdir(td)) {
1485 /* Only test the active signal side. */
1486 if (!HasSignalOnTrackdir(tile, ReverseTrackdir(td))) continue;
1487 TileIndex next = TileAddByDiagDir(tile, TrackdirToExitdir(td));
1488 TrackBits tracks = TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(td));
1489 if (HasReservedTracks(next, tracks)) {
1490 v = GetTrainForReservation(next, TrackBitsToTrack(GetReservedTrackbits(next) & tracks));
1491 }
1492 }
1493 }
1494 Company::Get(GetTileOwner(tile))->infrastructure.signal -= CountBits(GetPresentSignals(tile));
1495 SetPresentSignals(tile, GetPresentSignals(tile) & ~SignalOnTrack(track));
1496 Company::Get(GetTileOwner(tile))->infrastructure.signal += CountBits(GetPresentSignals(tile));
1497 DirtyCompanyInfrastructureWindows(GetTileOwner(tile));
1498
1499 /* removed last signal from tile? */
1500 if (GetPresentSignals(tile) == 0) {
1501 SetSignalStates(tile, 0);
1502 SetHasSignals(tile, false);
1503 SetSignalVariant(tile, INVALID_TRACK, SIG_ELECTRIC); // remove any possible semaphores
1504 }
1505
1506 AddTrackToSignalBuffer(tile, track, GetTileOwner(tile));
1507 YapfNotifyTrackLayoutChange(tile, track);
1508 if (v != nullptr) TryPathReserve(v, false);
1509
1510 MarkTileDirtyByTile(tile);
1511 }
1512
1513 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_SIGNALS]);
1514 }
1515
1527 CommandCost CmdRemoveSignalTrack(DoCommandFlag flags, TileIndex tile, TileIndex end_tile, Track track, bool autofill)
1528 {
1529 return CmdSignalTrackHelper(flags, tile, end_tile, track, SIGTYPE_BLOCK, SIG_ELECTRIC, false, true, autofill, false, 1); // bit 5 is remove bit
1530 }
1531
1533 static Vehicle *UpdateTrainPowerProc(Vehicle *v, void *data)
1534 {
1535 if (v->type != VEH_TRAIN) return nullptr;
1536
1537 TrainList *affected_trains = static_cast<TrainList*>(data);
1538 include(*affected_trains, Train::From(v)->First());
1539
1540 return nullptr;
1541 }
1542
1553 CommandCost CmdConvertRail(DoCommandFlag flags, TileIndex tile, TileIndex area_start, RailType totype, bool diagonal)
1554 {
1555 TileIndex area_end = tile;
1556
1557 if (!ValParamRailType(totype)) return CMD_ERROR;
1558 if (area_start >= Map::Size()) return CMD_ERROR;
1559
1560 TrainList affected_trains;
1561
1562 CommandCost cost(EXPENSES_CONSTRUCTION);
1563 CommandCost error = CommandCost(STR_ERROR_NO_SUITABLE_RAILROAD_TRACK); // by default, there is no track to convert.
1564 bool found_convertible_track = false; // whether we actually did convert some track (see bug #7633)
1565
1566 std::unique_ptr<TileIterator> iter = TileIterator::Create(area_start, area_end, diagonal);
1567 for (; (tile = *iter) != INVALID_TILE; ++(*iter)) {
1568 TileType tt = GetTileType(tile);
1569
1570 /* Check if there is any track on tile */
1571 switch (tt) {
1572 case MP_RAILWAY:
1573 break;
1574 case MP_STATION:
1575 if (!HasStationRail(tile)) continue;
1576 break;
1577 case MP_ROAD:
1578 if (!IsLevelCrossing(tile)) continue;
1579 if (RailNoLevelCrossings(totype)) {
1580 error.MakeError(STR_ERROR_CROSSING_DISALLOWED_RAIL);
1581 continue;
1582 }
1583 break;
1584 case MP_TUNNELBRIDGE:
1585 if (GetTunnelBridgeTransportType(tile) != TRANSPORT_RAIL) continue;
1586 break;
1587 default: continue;
1588 }
1589
1590 /* Original railtype we are converting from */
1591 RailType type = GetRailType(tile);
1592
1593 /* Converting to the same type or converting 'hidden' elrail -> rail */
1594 if (type == totype || (_settings_game.vehicle.disable_elrails && totype == RAILTYPE_RAIL && type == RAILTYPE_ELECTRIC)) continue;
1595
1596 /* Trying to convert other's rail */
1597 CommandCost ret = CheckTileOwnership(tile);
1598 if (ret.Failed()) {
1599 error = ret;
1600 continue;
1601 }
1602
1603 std::vector<Train *> vehicles_affected;
1604
1605 /* Vehicle on the tile when not converting Rail <-> ElRail
1606 * Tunnels and bridges have special check later */
1607 if (tt != MP_TUNNELBRIDGE) {
1608 if (!IsCompatibleRail(type, totype)) {
1609 ret = IsPlainRailTile(tile) ? EnsureNoTrainOnTrackBits(tile, GetTrackBits(tile)) : EnsureNoVehicleOnGround(tile);
1610 if (ret.Failed()) {
1611 error = ret;
1612 continue;
1613 }
1614 }
1615 if (flags & DC_EXEC) { // we can safely convert, too
1616 TrackBits reserved = GetReservedTrackbits(tile);
1617 Track track;
1618 while ((track = RemoveFirstTrack(&reserved)) != INVALID_TRACK) {
1619 Train *v = GetTrainForReservation(tile, track);
1620 if (v != nullptr && !HasPowerOnRail(v->railtype, totype)) {
1621 /* No power on new rail type, reroute. */
1622 FreeTrainTrackReservation(v);
1623 vehicles_affected.push_back(v);
1624 }
1625 }
1626
1627 /* Update the company infrastructure counters. */
1628 if (!IsRailStationTile(tile) || !IsStationTileBlocked(tile)) {
1629 Company *c = Company::Get(GetTileOwner(tile));
1630 uint num_pieces = IsLevelCrossingTile(tile) ? LEVELCROSSING_TRACKBIT_FACTOR : 1;
1631 if (IsPlainRailTile(tile)) {
1632 TrackBits bits = GetTrackBits(tile);
1633 num_pieces = CountBits(bits);
1634 if (TracksOverlap(bits)) num_pieces *= num_pieces;
1635 }
1636 c->infrastructure.rail[type] -= num_pieces;
1637 c->infrastructure.rail[totype] += num_pieces;
1638 DirtyCompanyInfrastructureWindows(c->index);
1639 }
1640
1641 SetRailType(tile, totype);
1642 MarkTileDirtyByTile(tile);
1643 /* update power of train on this tile */
1644 FindVehicleOnPos(tile, &affected_trains, &UpdateTrainPowerProc);
1645 }
1646 }
1647
1648 switch (tt) {
1649 case MP_RAILWAY:
1650 switch (GetRailTileType(tile)) {
1651 case RAIL_TILE_DEPOT:
1652 if (flags & DC_EXEC) {
1653 /* notify YAPF about the track layout change */
1654 YapfNotifyTrackLayoutChange(tile, GetRailDepotTrack(tile));
1655
1656 /* Update build vehicle window related to this depot */
1657 InvalidateWindowData(WC_VEHICLE_DEPOT, tile);
1658 InvalidateWindowData(WC_BUILD_VEHICLE, tile);
1659 }
1660 found_convertible_track = true;
1661 cost.AddCost(RailConvertCost(type, totype));
1662 break;
1663
1664 default: // RAIL_TILE_NORMAL, RAIL_TILE_SIGNALS
1665 if (flags & DC_EXEC) {
1666 /* notify YAPF about the track layout change */
1667 TrackBits tracks = GetTrackBits(tile);
1668 while (tracks != TRACK_BIT_NONE) {
1669 YapfNotifyTrackLayoutChange(tile, RemoveFirstTrack(&tracks));
1670 }
1671 }
1672 found_convertible_track = true;
1673 cost.AddCost(RailConvertCost(type, totype) * CountBits(GetTrackBits(tile)));
1674 break;
1675 }
1676 break;
1677
1678 case MP_TUNNELBRIDGE: {
1679 TileIndex endtile = GetOtherTunnelBridgeEnd(tile);
1680
1681 /* If both ends of tunnel/bridge are in the range, do not try to convert twice -
1682 * it would cause assert because of different test and exec runs */
1683 if (endtile < tile) {
1684 if (diagonal) {
1685 if (DiagonalTileArea(area_start, area_end).Contains(endtile)) continue;
1686 } else {
1687 if (OrthogonalTileArea(area_start, area_end).Contains(endtile)) continue;
1688 }
1689 }
1690
1691 /* When not converting rail <-> el. rail, any vehicle cannot be in tunnel/bridge */
1692 if (!IsCompatibleRail(GetRailType(tile), totype)) {
1693 ret = TunnelBridgeIsFree(tile, endtile);
1694 if (ret.Failed()) {
1695 error = ret;
1696 continue;
1697 }
1698 }
1699
1700 if (flags & DC_EXEC) {
1701 Track track = DiagDirToDiagTrack(GetTunnelBridgeDirection(tile));
1702 if (HasTunnelBridgeReservation(tile)) {
1703 Train *v = GetTrainForReservation(tile, track);
1704 if (v != nullptr && !HasPowerOnRail(v->railtype, totype)) {
1705 /* No power on new rail type, reroute. */
1706 FreeTrainTrackReservation(v);
1707 vehicles_affected.push_back(v);
1708 }
1709 }
1710
1711 /* Update the company infrastructure counters. */
1712 uint num_pieces = (GetTunnelBridgeLength(tile, endtile) + 2) * TUNNELBRIDGE_TRACKBIT_FACTOR;
1713 Company *c = Company::Get(GetTileOwner(tile));
1714 c->infrastructure.rail[GetRailType(tile)] -= num_pieces;
1715 c->infrastructure.rail[totype] += num_pieces;
1716 DirtyCompanyInfrastructureWindows(c->index);
1717
1718 SetRailType(tile, totype);
1719 SetRailType(endtile, totype);
1720
1721 FindVehicleOnPos(tile, &affected_trains, &UpdateTrainPowerProc);
1722 FindVehicleOnPos(endtile, &affected_trains, &UpdateTrainPowerProc);
1723
1724 YapfNotifyTrackLayoutChange(tile, track);
1725 YapfNotifyTrackLayoutChange(endtile, track);
1726
1727 if (IsBridge(tile)) {
1728 MarkBridgeDirty(tile);
1729 } else {
1730 MarkTileDirtyByTile(tile);
1731 MarkTileDirtyByTile(endtile);
1732 }
1733 }
1734
1735 found_convertible_track = true;
1736 cost.AddCost((GetTunnelBridgeLength(tile, endtile) + 2) * RailConvertCost(type, totype));
1737 break;
1738 }
1739
1740 default: // MP_STATION, MP_ROAD
1741 if (flags & DC_EXEC) {
1742 Track track = ((tt == MP_STATION) ? GetRailStationTrack(tile) : GetCrossingRailTrack(tile));
1743 YapfNotifyTrackLayoutChange(tile, track);
1744 }
1745
1746 found_convertible_track = true;
1747 cost.AddCost(RailConvertCost(type, totype));
1748 break;
1749 }
1750
1751 for (uint i = 0; i < vehicles_affected.size(); ++i) {
1752 TryPathReserve(vehicles_affected[i], true);
1753 }
1754 }
1755
1756 if (flags & DC_EXEC) {
1757 /* Railtype changed, update trains as when entering different track */
1758 for (Train *v : affected_trains) {
1759 v->ConsistChanged(CCF_TRACK);
1760 }
1761 }
1762
1763 return found_convertible_track ? cost : error;
1764 }
1765
1766 static CommandCost RemoveTrainDepot(TileIndex tile, DoCommandFlag flags)
1767 {
1768 if (_current_company != OWNER_WATER) {
1769 CommandCost ret = CheckTileOwnership(tile);
1770 if (ret.Failed()) return ret;
1771 }
1772
1773 CommandCost ret = EnsureNoVehicleOnGround(tile);
1774 if (ret.Failed()) return ret;
1775
1776 if (flags & DC_EXEC) {
1777 /* read variables before the depot is removed */
1778 DiagDirection dir = GetRailDepotDirection(tile);
1779 Owner owner = GetTileOwner(tile);
1780 Train *v = nullptr;
1781
1782 if (HasDepotReservation(tile)) {
1783 v = GetTrainForReservation(tile, DiagDirToDiagTrack(dir));
1784 if (v != nullptr) FreeTrainTrackReservation(v);
1785 }
1786
1787 Company::Get(owner)->infrastructure.rail[GetRailType(tile)]--;
1788 DirtyCompanyInfrastructureWindows(owner);
1789
1790 delete Depot::GetByTile(tile);
1791 DoClearSquare(tile);
1792 AddSideToSignalBuffer(tile, dir, owner);
1793 YapfNotifyTrackLayoutChange(tile, DiagDirToDiagTrack(dir));
1794 if (v != nullptr) TryPathReserve(v, true);
1795 }
1796
1797 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_CLEAR_DEPOT_TRAIN]);
1798 }
1799
1800 static CommandCost ClearTile_Track(TileIndex tile, DoCommandFlag flags)
1801 {
1802 CommandCost cost(EXPENSES_CONSTRUCTION);
1803
1804 if (flags & DC_AUTO) {
1805 if (!IsTileOwner(tile, _current_company)) {
1806 return_cmd_error(STR_ERROR_AREA_IS_OWNED_BY_ANOTHER);
1807 }
1808
1809 if (IsPlainRail(tile)) {
1810 return_cmd_error(STR_ERROR_MUST_REMOVE_RAILROAD_TRACK);
1811 } else {
1812 return_cmd_error(STR_ERROR_BUILDING_MUST_BE_DEMOLISHED);
1813 }
1814 }
1815
1816 switch (GetRailTileType(tile)) {
1817 case RAIL_TILE_SIGNALS:
1818 case RAIL_TILE_NORMAL: {
1819 Slope tileh = GetTileSlope(tile);
1820 /* Is there flat water on the lower halftile that gets cleared expensively? */
1821 bool water_ground = (GetRailGroundType(tile) == RAIL_GROUND_WATER && IsSlopeWithOneCornerRaised(tileh));
1822
1823 TrackBits tracks = GetTrackBits(tile);
1824 while (tracks != TRACK_BIT_NONE) {
1825 Track track = RemoveFirstTrack(&tracks);
1826 CommandCost ret = Command<CMD_REMOVE_SINGLE_RAIL>::Do(flags, tile, track);
1827 if (ret.Failed()) return ret;
1828 cost.AddCost(ret);
1829 }
1830
1831 /* When bankrupting, don't make water dirty, there could be a ship on lower halftile.
1832 * Same holds for non-companies clearing the tile, e.g. disasters. */
1833 if (water_ground && !(flags & DC_BANKRUPT) && Company::IsValidID(_current_company)) {
1834 CommandCost ret = EnsureNoVehicleOnGround(tile);
1835 if (ret.Failed()) return ret;
1836
1837 /* The track was removed, and left a coast tile. Now also clear the water. */
1838 if (flags & DC_EXEC) {
1839 DoClearSquare(tile);
1840 }
1841 cost.AddCost(_price[PR_CLEAR_WATER]);
1842 }
1843
1844 return cost;
1845 }
1846
1847 case RAIL_TILE_DEPOT:
1848 return RemoveTrainDepot(tile, flags);
1849
1850 default:
1851 return CMD_ERROR;
1852 }
1853 }
1854
1859 static uint GetSaveSlopeZ(uint x, uint y, Track track)
1860 {
1861 switch (track) {
1862 case TRACK_UPPER: x &= ~0xF; y &= ~0xF; break;
1863 case TRACK_LOWER: x |= 0xF; y |= 0xF; break;
1864 case TRACK_LEFT: x |= 0xF; y &= ~0xF; break;
1865 case TRACK_RIGHT: x &= ~0xF; y |= 0xF; break;
1866 default: break;
1867 }
1868 return GetSlopePixelZ(x, y);
1869 }
1870
1871 static void DrawSingleSignal(TileIndex tile, const RailTypeInfo *rti, Track track, SignalState condition, SignalOffsets image, uint pos)
1872 {
1873 bool side;
1874 switch (_settings_game.construction.train_signal_side) {
1875 case 0: side = false; break; // left
1876 case 2: side = true; break; // right
1877 default: side = _settings_game.vehicle.road_side != 0; break; // driving side
1878 }
1879 static const Point SignalPositions[2][12] = {
1880 { // Signals on the left side
1881 /* LEFT LEFT RIGHT RIGHT UPPER UPPER */
1882 { 8, 5}, {14, 1}, { 1, 14}, { 9, 11}, { 1, 0}, { 3, 10},
1883 /* LOWER LOWER X X Y Y */
1884 {11, 4}, {14, 14}, {11, 3}, { 4, 13}, { 3, 4}, {11, 13}
1885 }, { // Signals on the right side
1886 /* LEFT LEFT RIGHT RIGHT UPPER UPPER */
1887 {14, 1}, {12, 10}, { 4, 6}, { 1, 14}, {10, 4}, { 0, 1},
1888 /* LOWER LOWER X X Y Y */
1889 {14, 14}, { 5, 12}, {11, 13}, { 4, 3}, {13, 4}, { 3, 11}
1890 }
1891 };
1892
1893 uint x = TileX(tile) * TILE_SIZE + SignalPositions[side][pos].x;
1894 uint y = TileY(tile) * TILE_SIZE + SignalPositions[side][pos].y;
1895
1896 SignalType type = GetSignalType(tile, track);
1897 SignalVariant variant = GetSignalVariant(tile, track);
1898
1899 SpriteID sprite = GetCustomSignalSprite(rti, tile, type, variant, condition);
1900 if (sprite != 0) {
1901 sprite += image;
1902 } else {
1903 /* Normal electric signals are stored in a different sprite block than all other signals. */
1904 sprite = (type == SIGTYPE_BLOCK && variant == SIG_ELECTRIC) ? SPR_ORIGINAL_SIGNALS_BASE : SPR_SIGNALS_BASE - 16;
1905 sprite += type * 16 + variant * 64 + image * 2 + condition + (type > SIGTYPE_LAST_NOPBS ? 64 : 0);
1906 }
1907
1908 AddSortableSpriteToDraw(sprite, PAL_NONE, x, y, 1, 1, BB_HEIGHT_UNDER_BRIDGE, GetSaveSlopeZ(x, y, track));
1909 }
1910
1911 static uint32_t _drawtile_track_palette;
1912
1913
1914
1916 struct FenceOffset {
1917 Corner height_ref;
1918 int x_offs;
1919 int y_offs;
1920 int x_size;
1921 int y_size;
1922 };
1923
1925 static FenceOffset _fence_offsets[] = {
1926 { CORNER_INVALID, 0, 1, 16, 1 }, // RFO_FLAT_X_NW
1927 { CORNER_INVALID, 1, 0, 1, 16 }, // RFO_FLAT_Y_NE
1928 { CORNER_W, 8, 8, 1, 1 }, // RFO_FLAT_LEFT
1929 { CORNER_N, 8, 8, 1, 1 }, // RFO_FLAT_UPPER
1930 { CORNER_INVALID, 0, 1, 16, 1 }, // RFO_SLOPE_SW_NW
1931 { CORNER_INVALID, 1, 0, 1, 16 }, // RFO_SLOPE_SE_NE
1932 { CORNER_INVALID, 0, 1, 16, 1 }, // RFO_SLOPE_NE_NW
1933 { CORNER_INVALID, 1, 0, 1, 16 }, // RFO_SLOPE_NW_NE
1934 { CORNER_INVALID, 0, 15, 16, 1 }, // RFO_FLAT_X_SE
1935 { CORNER_INVALID, 15, 0, 1, 16 }, // RFO_FLAT_Y_SW
1936 { CORNER_E, 8, 8, 1, 1 }, // RFO_FLAT_RIGHT
1937 { CORNER_S, 8, 8, 1, 1 }, // RFO_FLAT_LOWER
1938 { CORNER_INVALID, 0, 15, 16, 1 }, // RFO_SLOPE_SW_SE
1939 { CORNER_INVALID, 15, 0, 1, 16 }, // RFO_SLOPE_SE_SW
1940 { CORNER_INVALID, 0, 15, 16, 1 }, // RFO_SLOPE_NE_SE
1941 { CORNER_INVALID, 15, 0, 1, 16 }, // RFO_SLOPE_NW_SW
1942 };
1943
1951 static void DrawTrackFence(const TileInfo *ti, SpriteID base_image, uint num_sprites, RailFenceOffset rfo)
1952 {
1953 int z = ti->z;
1954 if (_fence_offsets[rfo].height_ref != CORNER_INVALID) {
1955 z += GetSlopePixelZInCorner(RemoveHalftileSlope(ti->tileh), _fence_offsets[rfo].height_ref);
1956 }
1957 AddSortableSpriteToDraw(base_image + (rfo % num_sprites), _drawtile_track_palette,
1958 ti->x + _fence_offsets[rfo].x_offs,
1959 ti->y + _fence_offsets[rfo].y_offs,
1960 _fence_offsets[rfo].x_size,
1961 _fence_offsets[rfo].y_size,
1962 4, z);
1963 }
1964
1968 static void DrawTrackFence_NW(const TileInfo *ti, SpriteID base_image, uint num_sprites)
1969 {
1970 RailFenceOffset rfo = RFO_FLAT_X_NW;
1971 if (ti->tileh & SLOPE_NW) rfo = (ti->tileh & SLOPE_W) ? RFO_SLOPE_SW_NW : RFO_SLOPE_NE_NW;
1972 DrawTrackFence(ti, base_image, num_sprites, rfo);
1973 }
1974
1978 static void DrawTrackFence_SE(const TileInfo *ti, SpriteID base_image, uint num_sprites)
1979 {
1980 RailFenceOffset rfo = RFO_FLAT_X_SE;
1981 if (ti->tileh & SLOPE_SE) rfo = (ti->tileh & SLOPE_S) ? RFO_SLOPE_SW_SE : RFO_SLOPE_NE_SE;
1982 DrawTrackFence(ti, base_image, num_sprites, rfo);
1983 }
1984
1988 static void DrawTrackFence_NE(const TileInfo *ti, SpriteID base_image, uint num_sprites)
1989 {
1990 RailFenceOffset rfo = RFO_FLAT_Y_NE;
1991 if (ti->tileh & SLOPE_NE) rfo = (ti->tileh & SLOPE_E) ? RFO_SLOPE_SE_NE : RFO_SLOPE_NW_NE;
1992 DrawTrackFence(ti, base_image, num_sprites, rfo);
1993 }
1994
1998 static void DrawTrackFence_SW(const TileInfo *ti, SpriteID base_image, uint num_sprites)
1999 {
2000 RailFenceOffset rfo = RFO_FLAT_Y_SW;
2001 if (ti->tileh & SLOPE_SW) rfo = (ti->tileh & SLOPE_S) ? RFO_SLOPE_SE_SW : RFO_SLOPE_NW_SW;
2002 DrawTrackFence(ti, base_image, num_sprites, rfo);
2003 }
2004
2010 static void DrawTrackDetails(const TileInfo *ti, const RailTypeInfo *rti)
2011 {
2012 /* Base sprite for track fences.
2013 * Note: Halftile slopes only have fences on the upper part. */
2014 uint num_sprites = 0;
2015 SpriteID base_image = GetCustomRailSprite(rti, ti->tile, RTSG_FENCES, IsHalftileSlope(ti->tileh) ? TCX_UPPER_HALFTILE : TCX_NORMAL, &num_sprites);
2016 if (base_image == 0) {
2017 base_image = SPR_TRACK_FENCE_FLAT_X;
2018 num_sprites = 8;
2019 }
2020
2021 assert(num_sprites > 0);
2022
2023 switch (GetRailGroundType(ti->tile)) {
2024 case RAIL_GROUND_FENCE_NW: DrawTrackFence_NW(ti, base_image, num_sprites); break;
2025 case RAIL_GROUND_FENCE_SE: DrawTrackFence_SE(ti, base_image, num_sprites); break;
2026 case RAIL_GROUND_FENCE_SENW: DrawTrackFence_NW(ti, base_image, num_sprites);
2027 DrawTrackFence_SE(ti, base_image, num_sprites); break;
2028 case RAIL_GROUND_FENCE_NE: DrawTrackFence_NE(ti, base_image, num_sprites); break;
2029 case RAIL_GROUND_FENCE_SW: DrawTrackFence_SW(ti, base_image, num_sprites); break;
2030 case RAIL_GROUND_FENCE_NESW: DrawTrackFence_NE(ti, base_image, num_sprites);
2031 DrawTrackFence_SW(ti, base_image, num_sprites); break;
2032 case RAIL_GROUND_FENCE_VERT1: DrawTrackFence(ti, base_image, num_sprites, RFO_FLAT_LEFT); break;
2033 case RAIL_GROUND_FENCE_VERT2: DrawTrackFence(ti, base_image, num_sprites, RFO_FLAT_RIGHT); break;
2034 case RAIL_GROUND_FENCE_HORIZ1: DrawTrackFence(ti, base_image, num_sprites, RFO_FLAT_UPPER); break;
2035 case RAIL_GROUND_FENCE_HORIZ2: DrawTrackFence(ti, base_image, num_sprites, RFO_FLAT_LOWER); break;
2036 case RAIL_GROUND_WATER: {
2037 Corner track_corner;
2038 if (IsHalftileSlope(ti->tileh)) {
2039 /* Steep slope or one-corner-raised slope with halftile foundation */
2040 track_corner = GetHalftileSlopeCorner(ti->tileh);
2041 } else {
2042 /* Three-corner-raised slope */
2043 track_corner = OppositeCorner(GetHighestSlopeCorner(ComplementSlope(ti->tileh)));
2044 }
2045 switch (track_corner) {
2046 case CORNER_W: DrawTrackFence(ti, base_image, num_sprites, RFO_FLAT_LEFT); break;
2047 case CORNER_S: DrawTrackFence(ti, base_image, num_sprites, RFO_FLAT_LOWER); break;
2048 case CORNER_E: DrawTrackFence(ti, base_image, num_sprites, RFO_FLAT_RIGHT); break;
2049 case CORNER_N: DrawTrackFence(ti, base_image, num_sprites, RFO_FLAT_UPPER); break;
2050 default: NOT_REACHED();
2051 }
2052 break;
2053 }
2054 default: break;
2055 }
2056 }
2057
2058 /* SubSprite for drawing the track halftile of 'three-corners-raised'-sloped rail sprites. */
2059 static const int INF = 1000; // big number compared to tilesprite size
2060 static const SubSprite _halftile_sub_sprite[4] = {
2061 { -INF , -INF , 32 - 33, INF }, // CORNER_W, clip 33 pixels from right
2062 { -INF , 0 + 7, INF , INF }, // CORNER_S, clip 7 pixels from top
2063 { -31 + 33, -INF , INF , INF }, // CORNER_E, clip 33 pixels from left
2064 { -INF , -INF , INF , 30 - 23 } // CORNER_N, clip 23 pixels from bottom
2065 };
2066
2067 static inline void DrawTrackSprite(SpriteID sprite, PaletteID pal, const TileInfo *ti, Slope s)
2068 {
2069 DrawGroundSprite(sprite, pal, nullptr, 0, (ti->tileh & s) ? -8 : 0);
2070 }
2071
2072 static void DrawTrackBitsOverlay(TileInfo *ti, TrackBits track, const RailTypeInfo *rti)
2073 {
2074 RailGroundType rgt = GetRailGroundType(ti->tile);
2075 Foundation f = GetRailFoundation(ti->tileh, track);
2076 Corner halftile_corner = CORNER_INVALID;
2077
2078 if (IsNonContinuousFoundation(f)) {
2079 /* Save halftile corner */
2080 halftile_corner = (f == FOUNDATION_STEEP_BOTH ? GetHighestSlopeCorner(ti->tileh) : GetHalftileFoundationCorner(f));
2081 /* Draw lower part first */
2082 track &= ~CornerToTrackBits(halftile_corner);
2083 f = (f == FOUNDATION_STEEP_BOTH ? FOUNDATION_STEEP_LOWER : FOUNDATION_NONE);
2084 }
2085
2086 DrawFoundation(ti, f);
2087 /* DrawFoundation modifies ti */
2088
2089 /* Draw ground */
2090 if (rgt == RAIL_GROUND_WATER) {
2091 if (track != TRACK_BIT_NONE || IsSteepSlope(ti->tileh)) {
2092 /* three-corner-raised slope or steep slope with track on upper part */
2093 DrawShoreTile(ti->tileh);
2094 } else {
2095 /* single-corner-raised slope with track on upper part */
2096 DrawGroundSprite(SPR_FLAT_WATER_TILE, PAL_NONE);
2097 }
2098 } else {
2099 SpriteID image;
2100
2101 switch (rgt) {
2102 case RAIL_GROUND_BARREN: image = SPR_FLAT_BARE_LAND; break;
2103 case RAIL_GROUND_ICE_DESERT: image = SPR_FLAT_SNOW_DESERT_TILE; break;
2104 default: image = SPR_FLAT_GRASS_TILE; break;
2105 }
2106
2107 image += SlopeToSpriteOffset(ti->tileh);
2108
2109 DrawGroundSprite(image, PAL_NONE);
2110 }
2111
2112 bool no_combine = ti->tileh == SLOPE_FLAT && HasBit(rti->flags, RTF_NO_SPRITE_COMBINE);
2113 SpriteID overlay = GetCustomRailSprite(rti, ti->tile, RTSG_OVERLAY);
2114 SpriteID ground = GetCustomRailSprite(rti, ti->tile, no_combine ? RTSG_GROUND_COMPLETE : RTSG_GROUND);
2115 TrackBits pbs = _settings_client.gui.show_track_reservation ? GetRailReservationTrackBits(ti->tile) : TRACK_BIT_NONE;
2116
2117 if (track == TRACK_BIT_NONE) {
2118 /* Half-tile foundation, no track here? */
2119 } else if (no_combine) {
2120 /* Use trackbits as direct index from ground sprite, subtract 1
2121 * because there is no sprite for no bits. */
2122 DrawGroundSprite(ground + track - 1, PAL_NONE);
2123
2124 /* Draw reserved track bits */
2125 if (pbs & TRACK_BIT_X) DrawGroundSprite(overlay + RTO_X, PALETTE_CRASH);
2126 if (pbs & TRACK_BIT_Y) DrawGroundSprite(overlay + RTO_Y, PALETTE_CRASH);
2127 if (pbs & TRACK_BIT_UPPER) DrawTrackSprite(overlay + RTO_N, PALETTE_CRASH, ti, SLOPE_N);
2128 if (pbs & TRACK_BIT_LOWER) DrawTrackSprite(overlay + RTO_S, PALETTE_CRASH, ti, SLOPE_S);
2129 if (pbs & TRACK_BIT_RIGHT) DrawTrackSprite(overlay + RTO_E, PALETTE_CRASH, ti, SLOPE_E);
2130 if (pbs & TRACK_BIT_LEFT) DrawTrackSprite(overlay + RTO_W, PALETTE_CRASH, ti, SLOPE_W);
2131 } else if (ti->tileh == SLOPE_NW && track == TRACK_BIT_Y) {
2132 DrawGroundSprite(ground + RTO_SLOPE_NW, PAL_NONE);
2133 if (pbs != TRACK_BIT_NONE) DrawGroundSprite(overlay + RTO_SLOPE_NW, PALETTE_CRASH);
2134 } else if (ti->tileh == SLOPE_NE && track == TRACK_BIT_X) {
2135 DrawGroundSprite(ground + RTO_SLOPE_NE, PAL_NONE);
2136 if (pbs != TRACK_BIT_NONE) DrawGroundSprite(overlay + RTO_SLOPE_NE, PALETTE_CRASH);
2137 } else if (ti->tileh == SLOPE_SE && track == TRACK_BIT_Y) {
2138 DrawGroundSprite(ground + RTO_SLOPE_SE, PAL_NONE);
2139 if (pbs != TRACK_BIT_NONE) DrawGroundSprite(overlay + RTO_SLOPE_SE, PALETTE_CRASH);
2140 } else if (ti->tileh == SLOPE_SW && track == TRACK_BIT_X) {
2141 DrawGroundSprite(ground + RTO_SLOPE_SW, PAL_NONE);
2142 if (pbs != TRACK_BIT_NONE) DrawGroundSprite(overlay + RTO_SLOPE_SW, PALETTE_CRASH);
2143 } else {
2144 switch (track) {
2145 /* Draw single ground sprite when not overlapping. No track overlay
2146 * is necessary for these sprites. */
2147 case TRACK_BIT_X: DrawGroundSprite(ground + RTO_X, PAL_NONE); break;
2148 case TRACK_BIT_Y: DrawGroundSprite(ground + RTO_Y, PAL_NONE); break;
2149 case TRACK_BIT_UPPER: DrawTrackSprite(ground + RTO_N, PAL_NONE, ti, SLOPE_N); break;
2150 case TRACK_BIT_LOWER: DrawTrackSprite(ground + RTO_S, PAL_NONE, ti, SLOPE_S); break;
2151 case TRACK_BIT_RIGHT: DrawTrackSprite(ground + RTO_E, PAL_NONE, ti, SLOPE_E); break;
2152 case TRACK_BIT_LEFT: DrawTrackSprite(ground + RTO_W, PAL_NONE, ti, SLOPE_W); break;
2153 case TRACK_BIT_CROSS: DrawGroundSprite(ground + RTO_CROSSING_XY, PAL_NONE); break;
2154 case TRACK_BIT_HORZ: DrawTrackSprite(ground + RTO_N, PAL_NONE, ti, SLOPE_N);
2155 DrawTrackSprite(ground + RTO_S, PAL_NONE, ti, SLOPE_S); break;
2156 case TRACK_BIT_VERT: DrawTrackSprite(ground + RTO_E, PAL_NONE, ti, SLOPE_E);
2157 DrawTrackSprite(ground + RTO_W, PAL_NONE, ti, SLOPE_W); break;
2158
2159 default:
2160 /* We're drawing a junction tile */
2161 if ((track & TRACK_BIT_3WAY_NE) == 0) {
2162 DrawGroundSprite(ground + RTO_JUNCTION_SW, PAL_NONE);
2163 } else if ((track & TRACK_BIT_3WAY_SW) == 0) {
2164 DrawGroundSprite(ground + RTO_JUNCTION_NE, PAL_NONE);
2165 } else if ((track & TRACK_BIT_3WAY_NW) == 0) {
2166 DrawGroundSprite(ground + RTO_JUNCTION_SE, PAL_NONE);
2167 } else if ((track & TRACK_BIT_3WAY_SE) == 0) {
2168 DrawGroundSprite(ground + RTO_JUNCTION_NW, PAL_NONE);
2169 } else {
2170 DrawGroundSprite(ground + RTO_JUNCTION_NSEW, PAL_NONE);
2171 }
2172
2173 /* Mask out PBS bits as we shall draw them afterwards anyway. */
2174 track &= ~pbs;
2175
2176 /* Draw regular track bits */
2177 if (track & TRACK_BIT_X) DrawGroundSprite(overlay + RTO_X, PAL_NONE);
2178 if (track & TRACK_BIT_Y) DrawGroundSprite(overlay + RTO_Y, PAL_NONE);
2179 if (track & TRACK_BIT_UPPER) DrawGroundSprite(overlay + RTO_N, PAL_NONE);
2180 if (track & TRACK_BIT_LOWER) DrawGroundSprite(overlay + RTO_S, PAL_NONE);
2181 if (track & TRACK_BIT_RIGHT) DrawGroundSprite(overlay + RTO_E, PAL_NONE);
2182 if (track & TRACK_BIT_LEFT) DrawGroundSprite(overlay + RTO_W, PAL_NONE);
2183 }
2184
2185 /* Draw reserved track bits */
2186 if (pbs & TRACK_BIT_X) DrawGroundSprite(overlay + RTO_X, PALETTE_CRASH);
2187 if (pbs & TRACK_BIT_Y) DrawGroundSprite(overlay + RTO_Y, PALETTE_CRASH);
2188 if (pbs & TRACK_BIT_UPPER) DrawTrackSprite(overlay + RTO_N, PALETTE_CRASH, ti, SLOPE_N);
2189 if (pbs & TRACK_BIT_LOWER) DrawTrackSprite(overlay + RTO_S, PALETTE_CRASH, ti, SLOPE_S);
2190 if (pbs & TRACK_BIT_RIGHT) DrawTrackSprite(overlay + RTO_E, PALETTE_CRASH, ti, SLOPE_E);
2191 if (pbs & TRACK_BIT_LEFT) DrawTrackSprite(overlay + RTO_W, PALETTE_CRASH, ti, SLOPE_W);
2192 }
2193
2194 if (IsValidCorner(halftile_corner)) {
2195 DrawFoundation(ti, HalftileFoundation(halftile_corner));
2196 overlay = GetCustomRailSprite(rti, ti->tile, RTSG_OVERLAY, TCX_UPPER_HALFTILE);
2197 ground = GetCustomRailSprite(rti, ti->tile, RTSG_GROUND, TCX_UPPER_HALFTILE);
2198
2199 /* Draw higher halftile-overlay: Use the sloped sprites with three corners raised. They probably best fit the lightning. */
2200 Slope fake_slope = SlopeWithThreeCornersRaised(OppositeCorner(halftile_corner));
2201
2202 SpriteID image;
2203 switch (rgt) {
2204 case RAIL_GROUND_BARREN: image = SPR_FLAT_BARE_LAND; break;
2205 case RAIL_GROUND_ICE_DESERT:
2206 case RAIL_GROUND_HALF_SNOW: image = SPR_FLAT_SNOW_DESERT_TILE; break;
2207 default: image = SPR_FLAT_GRASS_TILE; break;
2208 }
2209
2210 image += SlopeToSpriteOffset(fake_slope);
2211
2212 DrawGroundSprite(image, PAL_NONE, &(_halftile_sub_sprite[halftile_corner]));
2213
2214 track = CornerToTrackBits(halftile_corner);
2215
2216 int offset;
2217 switch (track) {
2218 default: NOT_REACHED();
2219 case TRACK_BIT_UPPER: offset = RTO_N; break;
2220 case TRACK_BIT_LOWER: offset = RTO_S; break;
2221 case TRACK_BIT_RIGHT: offset = RTO_E; break;
2222 case TRACK_BIT_LEFT: offset = RTO_W; break;
2223 }
2224
2225 DrawTrackSprite(ground + offset, PAL_NONE, ti, fake_slope);
2226 if (_settings_client.gui.show_track_reservation && HasReservedTracks(ti->tile, track)) {
2227 DrawTrackSprite(overlay + offset, PALETTE_CRASH, ti, fake_slope);
2228 }
2229 }
2230 }
2231
2237 static void DrawTrackBits(TileInfo *ti, TrackBits track)
2238 {
2239 const RailTypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
2240
2241 if (rti->UsesOverlay()) {
2242 DrawTrackBitsOverlay(ti, track, rti);
2243 return;
2244 }
2245
2246 RailGroundType rgt = GetRailGroundType(ti->tile);
2247 Foundation f = GetRailFoundation(ti->tileh, track);
2248 Corner halftile_corner = CORNER_INVALID;
2249
2250 if (IsNonContinuousFoundation(f)) {
2251 /* Save halftile corner */
2252 halftile_corner = (f == FOUNDATION_STEEP_BOTH ? GetHighestSlopeCorner(ti->tileh) : GetHalftileFoundationCorner(f));
2253 /* Draw lower part first */
2254 track &= ~CornerToTrackBits(halftile_corner);
2255 f = (f == FOUNDATION_STEEP_BOTH ? FOUNDATION_STEEP_LOWER : FOUNDATION_NONE);
2256 }
2257
2258 DrawFoundation(ti, f);
2259 /* DrawFoundation modifies ti */
2260
2261 SpriteID image;
2262 PaletteID pal = PAL_NONE;
2263 const SubSprite *sub = nullptr;
2264 bool junction = false;
2265
2266 /* Select the sprite to use. */
2267 if (track == 0) {
2268 /* Clear ground (only track on halftile foundation) */
2269 if (rgt == RAIL_GROUND_WATER) {
2270 if (IsSteepSlope(ti->tileh)) {
2271 DrawShoreTile(ti->tileh);
2272 image = 0;
2273 } else {
2274 image = SPR_FLAT_WATER_TILE;
2275 }
2276 } else {
2277 switch (rgt) {
2278 case RAIL_GROUND_BARREN: image = SPR_FLAT_BARE_LAND; break;
2279 case RAIL_GROUND_ICE_DESERT: image = SPR_FLAT_SNOW_DESERT_TILE; break;
2280 default: image = SPR_FLAT_GRASS_TILE; break;
2281 }
2282 image += SlopeToSpriteOffset(ti->tileh);
2283 }
2284 } else {
2285 if (ti->tileh != SLOPE_FLAT) {
2286 /* track on non-flat ground */
2287 image = _track_sloped_sprites[ti->tileh - 1] + rti->base_sprites.track_y;
2288 } else {
2289 /* track on flat ground */
2290 switch (track) {
2291 /* single track, select combined track + ground sprite*/
2292 case TRACK_BIT_Y: image = rti->base_sprites.track_y; break;
2293 case TRACK_BIT_X: image = rti->base_sprites.track_y + 1; break;
2294 case TRACK_BIT_UPPER: image = rti->base_sprites.track_y + 2; break;
2295 case TRACK_BIT_LOWER: image = rti->base_sprites.track_y + 3; break;
2296 case TRACK_BIT_RIGHT: image = rti->base_sprites.track_y + 4; break;
2297 case TRACK_BIT_LEFT: image = rti->base_sprites.track_y + 5; break;
2298 case TRACK_BIT_CROSS: image = rti->base_sprites.track_y + 6; break;
2299
2300 /* double diagonal track, select combined track + ground sprite*/
2301 case TRACK_BIT_HORZ: image = rti->base_sprites.track_ns; break;
2302 case TRACK_BIT_VERT: image = rti->base_sprites.track_ns + 1; break;
2303
2304 /* junction, select only ground sprite, handle track sprite later */
2305 default:
2306 junction = true;
2307 if ((track & TRACK_BIT_3WAY_NE) == 0) { image = rti->base_sprites.ground; break; }
2308 if ((track & TRACK_BIT_3WAY_SW) == 0) { image = rti->base_sprites.ground + 1; break; }
2309 if ((track & TRACK_BIT_3WAY_NW) == 0) { image = rti->base_sprites.ground + 2; break; }
2310 if ((track & TRACK_BIT_3WAY_SE) == 0) { image = rti->base_sprites.ground + 3; break; }
2311 image = rti->base_sprites.ground + 4;
2312 break;
2313 }
2314 }
2315
2316 switch (rgt) {
2317 case RAIL_GROUND_BARREN: pal = PALETTE_TO_BARE_LAND; break;
2318 case RAIL_GROUND_ICE_DESERT: image += rti->snow_offset; break;
2319 case RAIL_GROUND_WATER: {
2320 /* three-corner-raised slope */
2321 DrawShoreTile(ti->tileh);
2322 Corner track_corner = OppositeCorner(GetHighestSlopeCorner(ComplementSlope(ti->tileh)));
2323 sub = &(_halftile_sub_sprite[track_corner]);
2324 break;
2325 }
2326 default: break;
2327 }
2328 }
2329
2330 if (image != 0) DrawGroundSprite(image, pal, sub);
2331
2332 /* Draw track pieces individually for junction tiles */
2333 if (junction) {
2334 if (track & TRACK_BIT_X) DrawGroundSprite(rti->base_sprites.single_x, PAL_NONE);
2335 if (track & TRACK_BIT_Y) DrawGroundSprite(rti->base_sprites.single_y, PAL_NONE);
2336 if (track & TRACK_BIT_UPPER) DrawGroundSprite(rti->base_sprites.single_n, PAL_NONE);
2337 if (track & TRACK_BIT_LOWER) DrawGroundSprite(rti->base_sprites.single_s, PAL_NONE);
2338 if (track & TRACK_BIT_LEFT) DrawGroundSprite(rti->base_sprites.single_w, PAL_NONE);
2339 if (track & TRACK_BIT_RIGHT) DrawGroundSprite(rti->base_sprites.single_e, PAL_NONE);
2340 }
2341
2342 /* PBS debugging, draw reserved tracks darker */
2343 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation) {
2344 /* Get reservation, but mask track on halftile slope */
2345 TrackBits pbs = GetRailReservationTrackBits(ti->tile) & track;
2346 if (pbs & TRACK_BIT_X) {
2347 if (ti->tileh == SLOPE_FLAT || ti->tileh == SLOPE_ELEVATED) {
2348 DrawGroundSprite(rti->base_sprites.single_x, PALETTE_CRASH);
2349 } else {
2350 DrawGroundSprite(_track_sloped_sprites[ti->tileh - 1] + rti->base_sprites.single_sloped - 20, PALETTE_CRASH);
2351 }
2352 }
2353 if (pbs & TRACK_BIT_Y) {
2354 if (ti->tileh == SLOPE_FLAT || ti->tileh == SLOPE_ELEVATED) {
2355 DrawGroundSprite(rti->base_sprites.single_y, PALETTE_CRASH);
2356 } else {
2357 DrawGroundSprite(_track_sloped_sprites[ti->tileh - 1] + rti->base_sprites.single_sloped - 20, PALETTE_CRASH);
2358 }
2359 }
2360 if (pbs & TRACK_BIT_UPPER) DrawGroundSprite(rti->base_sprites.single_n, PALETTE_CRASH, nullptr, 0, ti->tileh & SLOPE_N ? -(int)TILE_HEIGHT : 0);
2361 if (pbs & TRACK_BIT_LOWER) DrawGroundSprite(rti->base_sprites.single_s, PALETTE_CRASH, nullptr, 0, ti->tileh & SLOPE_S ? -(int)TILE_HEIGHT : 0);
2362 if (pbs & TRACK_BIT_LEFT) DrawGroundSprite(rti->base_sprites.single_w, PALETTE_CRASH, nullptr, 0, ti->tileh & SLOPE_W ? -(int)TILE_HEIGHT : 0);
2363 if (pbs & TRACK_BIT_RIGHT) DrawGroundSprite(rti->base_sprites.single_e, PALETTE_CRASH, nullptr, 0, ti->tileh & SLOPE_E ? -(int)TILE_HEIGHT : 0);
2364 }
2365
2366 if (IsValidCorner(halftile_corner)) {
2367 DrawFoundation(ti, HalftileFoundation(halftile_corner));
2368
2369 /* Draw higher halftile-overlay: Use the sloped sprites with three corners raised. They probably best fit the lightning. */
2370 Slope fake_slope = SlopeWithThreeCornersRaised(OppositeCorner(halftile_corner));
2371 image = _track_sloped_sprites[fake_slope - 1] + rti->base_sprites.track_y;
2372 pal = PAL_NONE;
2373 switch (rgt) {
2374 case RAIL_GROUND_BARREN: pal = PALETTE_TO_BARE_LAND; break;
2375 case RAIL_GROUND_ICE_DESERT:
2376 case RAIL_GROUND_HALF_SNOW: image += rti->snow_offset; break; // higher part has snow in this case too
2377 default: break;
2378 }
2379 DrawGroundSprite(image, pal, &(_halftile_sub_sprite[halftile_corner]));
2380
2381 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasReservedTracks(ti->tile, CornerToTrackBits(halftile_corner))) {
2382 static const byte _corner_to_track_sprite[] = {3, 1, 2, 0};
2383 DrawGroundSprite(_corner_to_track_sprite[halftile_corner] + rti->base_sprites.single_n, PALETTE_CRASH, nullptr, 0, -(int)TILE_HEIGHT);
2384 }
2385 }
2386 }
2387
2388 static void DrawSignals(TileIndex tile, TrackBits rails, const RailTypeInfo *rti)
2389 {
2390 auto MAYBE_DRAW_SIGNAL = [&](byte signalbit, SignalOffsets image, uint pos, Track track) {
2391 if (IsSignalPresent(tile, signalbit)) DrawSingleSignal(tile, rti, track, GetSingleSignalState(tile, signalbit), image, pos);
2392 };
2393
2394 if (!(rails & TRACK_BIT_Y)) {
2395 if (!(rails & TRACK_BIT_X)) {
2396 if (rails & TRACK_BIT_LEFT) {
2397 MAYBE_DRAW_SIGNAL(2, SIGNAL_TO_NORTH, 0, TRACK_LEFT);
2398 MAYBE_DRAW_SIGNAL(3, SIGNAL_TO_SOUTH, 1, TRACK_LEFT);
2399 }
2400 if (rails & TRACK_BIT_RIGHT) {
2401 MAYBE_DRAW_SIGNAL(0, SIGNAL_TO_NORTH, 2, TRACK_RIGHT);
2402 MAYBE_DRAW_SIGNAL(1, SIGNAL_TO_SOUTH, 3, TRACK_RIGHT);
2403 }
2404 if (rails & TRACK_BIT_UPPER) {
2405 MAYBE_DRAW_SIGNAL(3, SIGNAL_TO_WEST, 4, TRACK_UPPER);
2406 MAYBE_DRAW_SIGNAL(2, SIGNAL_TO_EAST, 5, TRACK_UPPER);
2407 }
2408 if (rails & TRACK_BIT_LOWER) {
2409 MAYBE_DRAW_SIGNAL(1, SIGNAL_TO_WEST, 6, TRACK_LOWER);
2410 MAYBE_DRAW_SIGNAL(0, SIGNAL_TO_EAST, 7, TRACK_LOWER);
2411 }
2412 } else {
2413 MAYBE_DRAW_SIGNAL(3, SIGNAL_TO_SOUTHWEST, 8, TRACK_X);
2414 MAYBE_DRAW_SIGNAL(2, SIGNAL_TO_NORTHEAST, 9, TRACK_X);
2415 }
2416 } else {
2417 MAYBE_DRAW_SIGNAL(3, SIGNAL_TO_SOUTHEAST, 10, TRACK_Y);
2418 MAYBE_DRAW_SIGNAL(2, SIGNAL_TO_NORTHWEST, 11, TRACK_Y);
2419 }
2420 }
2421
2422 static void DrawTile_Track(TileInfo *ti)
2423 {
2424 const RailTypeInfo *rti = GetRailTypeInfo(GetRailType(ti->tile));
2425
2426 _drawtile_track_palette = COMPANY_SPRITE_COLOUR(GetTileOwner(ti->tile));
2427
2428 if (IsPlainRail(ti->tile)) {
2429 TrackBits rails = GetTrackBits(ti->tile);
2430
2431 DrawTrackBits(ti, rails);
2432
2433 if (HasBit(_display_opt, DO_FULL_DETAIL)) DrawTrackDetails(ti, rti);
2434
2435 if (HasRailCatenaryDrawn(GetRailType(ti->tile))) DrawRailCatenary(ti);
2436
2437 if (HasSignals(ti->tile)) DrawSignals(ti->tile, rails, rti);
2438 } else {
2439 /* draw depot */
2440 const DrawTileSprites *dts;
2441 PaletteID pal = PAL_NONE;
2442 SpriteID relocation;
2443
2444 if (ti->tileh != SLOPE_FLAT) DrawFoundation(ti, FOUNDATION_LEVELED);
2445
2446 if (IsInvisibilitySet(TO_BUILDINGS)) {
2447 /* Draw rail instead of depot */
2448 dts = &_depot_invisible_gfx_table[GetRailDepotDirection(ti->tile)];
2449 } else {
2450 dts = &_depot_gfx_table[GetRailDepotDirection(ti->tile)];
2451 }
2452
2453 SpriteID image;
2454 if (rti->UsesOverlay()) {
2455 image = SPR_FLAT_GRASS_TILE;
2456 } else {
2457 image = dts->ground.sprite;
2458 if (image != SPR_FLAT_GRASS_TILE) image += rti->GetRailtypeSpriteOffset();
2459 }
2460
2461 /* Adjust ground tile for desert and snow. */
2462 if (IsSnowRailGround(ti->tile)) {
2463 if (image != SPR_FLAT_GRASS_TILE) {
2464 image += rti->snow_offset; // tile with tracks
2465 } else {
2466 image = SPR_FLAT_SNOW_DESERT_TILE; // flat ground
2467 }
2468 }
2469
2470 DrawGroundSprite(image, GroundSpritePaletteTransform(image, pal, _drawtile_track_palette));
2471
2472 if (rti->UsesOverlay()) {
2473 SpriteID ground = GetCustomRailSprite(rti, ti->tile, RTSG_GROUND);
2474
2475 switch (GetRailDepotDirection(ti->tile)) {
2476 case DIAGDIR_NE:
2477 if (!IsInvisibilitySet(TO_BUILDINGS)) break;
2478 [[fallthrough]];
2479 case DIAGDIR_SW:
2480 DrawGroundSprite(ground + RTO_X, PAL_NONE);
2481 break;
2482 case DIAGDIR_NW:
2483 if (!IsInvisibilitySet(TO_BUILDINGS)) break;
2484 [[fallthrough]];
2485 case DIAGDIR_SE:
2486 DrawGroundSprite(ground + RTO_Y, PAL_NONE);
2487 break;
2488 default:
2489 break;
2490 }
2491
2492 if (_settings_client.gui.show_track_reservation && HasDepotReservation(ti->tile)) {
2493 SpriteID overlay = GetCustomRailSprite(rti, ti->tile, RTSG_OVERLAY);
2494
2495 switch (GetRailDepotDirection(ti->tile)) {
2496 case DIAGDIR_NE:
2497 if (!IsInvisibilitySet(TO_BUILDINGS)) break;
2498 [[fallthrough]];
2499 case DIAGDIR_SW:
2500 DrawGroundSprite(overlay + RTO_X, PALETTE_CRASH);
2501 break;
2502 case DIAGDIR_NW:
2503 if (!IsInvisibilitySet(TO_BUILDINGS)) break;
2504 [[fallthrough]];
2505 case DIAGDIR_SE:
2506 DrawGroundSprite(overlay + RTO_Y, PALETTE_CRASH);
2507 break;
2508 default:
2509 break;
2510 }
2511 }
2512 } else {
2513 /* PBS debugging, draw reserved tracks darker */
2514 if (_game_mode != GM_MENU && _settings_client.gui.show_track_reservation && HasDepotReservation(ti->tile)) {
2515 switch (GetRailDepotDirection(ti->tile)) {
2516 case DIAGDIR_NE:
2517 if (!IsInvisibilitySet(TO_BUILDINGS)) break;
2518 [[fallthrough]];
2519 case DIAGDIR_SW:
2520 DrawGroundSprite(rti->base_sprites.single_x, PALETTE_CRASH);
2521 break;
2522 case DIAGDIR_NW:
2523 if (!IsInvisibilitySet(TO_BUILDINGS)) break;
2524 [[fallthrough]];
2525 case DIAGDIR_SE:
2526 DrawGroundSprite(rti->base_sprites.single_y, PALETTE_CRASH);
2527 break;
2528 default:
2529 break;
2530 }
2531 }
2532 }
2533 int depot_sprite = GetCustomRailSprite(rti, ti->tile, RTSG_DEPOT);
2534 relocation = depot_sprite != 0 ? depot_sprite - SPR_RAIL_DEPOT_SE_1 : rti->GetRailtypeSpriteOffset();
2535
2536 if (HasRailCatenaryDrawn(GetRailType(ti->tile))) DrawRailCatenary(ti);
2537
2538 DrawRailTileSeq(ti, dts, TO_BUILDINGS, relocation, 0, _drawtile_track_palette);
2539 }
2540 DrawBridgeMiddle(ti);
2541 }
2542
2543 void DrawTrainDepotSprite(int x, int y, int dir, RailType railtype)
2544 {
2545 const DrawTileSprites *dts = &_depot_gfx_table[dir];
2546 const RailTypeInfo *rti = GetRailTypeInfo(railtype);
2547 SpriteID image = rti->UsesOverlay() ? SPR_FLAT_GRASS_TILE : dts->ground.sprite;
2548 uint32_t offset = rti->GetRailtypeSpriteOffset();
2549
2550 if (image != SPR_FLAT_GRASS_TILE) image += offset;
2551 PaletteID palette = COMPANY_SPRITE_COLOUR(_local_company);
2552
2553 DrawSprite(image, PAL_NONE, x, y);
2554
2555 if (rti->UsesOverlay()) {
2556 SpriteID ground = GetCustomRailSprite(rti, INVALID_TILE, RTSG_GROUND);
2557
2558 switch (dir) {
2559 case DIAGDIR_SW: DrawSprite(ground + RTO_X, PAL_NONE, x, y); break;
2560 case DIAGDIR_SE: DrawSprite(ground + RTO_Y, PAL_NONE, x, y); break;
2561 default: break;
2562 }
2563 }
2564 int depot_sprite = GetCustomRailSprite(rti, INVALID_TILE, RTSG_DEPOT);
2565 if (depot_sprite != 0) offset = depot_sprite - SPR_RAIL_DEPOT_SE_1;
2566
2567 DrawRailTileSeqInGUI(x, y, dts, offset, 0, palette);
2568 }
2569
2570 static int GetSlopePixelZ_Track(TileIndex tile, uint x, uint y, bool)
2571 {
2572 if (IsPlainRail(tile)) {
2573 int z;
2574 Slope tileh = GetTilePixelSlope(tile, &z);
2575 if (tileh == SLOPE_FLAT) return z;
2576
2577 z += ApplyPixelFoundationToSlope(GetRailFoundation(tileh, GetTrackBits(tile)), &tileh);
2578 return z + GetPartialPixelZ(x & 0xF, y & 0xF, tileh);
2579 } else {
2580 return GetTileMaxPixelZ(tile);
2581 }
2582 }
2583
2584 static Foundation GetFoundation_Track(TileIndex tile, Slope tileh)
2585 {
2586 return IsPlainRail(tile) ? GetRailFoundation(tileh, GetTrackBits(tile)) : FlatteningFoundation(tileh);
2587 }
2588
2589 static void TileLoop_Track(TileIndex tile)
2590 {
2591 RailGroundType old_ground = GetRailGroundType(tile);
2592 RailGroundType new_ground;
2593
2594 if (old_ground == RAIL_GROUND_WATER) {
2595 TileLoop_Water(tile);
2596 return;
2597 }
2598
2599 switch (_settings_game.game_creation.landscape) {
2600 case LT_ARCTIC: {
2601 int z;
2602 Slope slope = GetTileSlope(tile, &z);
2603 bool half = false;
2604
2605 /* for non-flat track, use lower part of track
2606 * in other cases, use the highest part with track */
2607 if (IsPlainRail(tile)) {
2608 TrackBits track = GetTrackBits(tile);
2609 Foundation f = GetRailFoundation(slope, track);
2610
2611 switch (f) {
2612 case FOUNDATION_NONE:
2613 /* no foundation - is the track on the upper side of three corners raised tile? */
2614 if (IsSlopeWithThreeCornersRaised(slope)) z++;
2615 break;
2616
2617 case FOUNDATION_INCLINED_X:
2618 case FOUNDATION_INCLINED_Y:
2619 /* sloped track - is it on a steep slope? */
2620 if (IsSteepSlope(slope)) z++;
2621 break;
2622
2623 case FOUNDATION_STEEP_LOWER:
2624 /* only lower part of steep slope */
2625 z++;
2626 break;
2627
2628 default:
2629 /* if it is a steep slope, then there is a track on higher part */
2630 if (IsSteepSlope(slope)) z++;
2631 z++;
2632 break;
2633 }
2634
2635 half = IsInsideMM(f, FOUNDATION_STEEP_BOTH, FOUNDATION_HALFTILE_N + 1);
2636 } else {
2637 /* is the depot on a non-flat tile? */
2638 if (slope != SLOPE_FLAT) z++;
2639 }
2640
2641 /* 'z' is now the lowest part of the highest track bit -
2642 * for sloped track, it is 'z' of lower part
2643 * for two track bits, it is 'z' of higher track bit
2644 * For non-continuous foundations (and STEEP_BOTH), 'half' is set */
2645 if (z > GetSnowLine()) {
2646 if (half && z - GetSnowLine() == 1) {
2647 /* track on non-continuous foundation, lower part is not under snow */
2648 new_ground = RAIL_GROUND_HALF_SNOW;
2649 } else {
2650 new_ground = RAIL_GROUND_ICE_DESERT;
2651 }
2652 goto set_ground;
2653 }
2654 break;
2655 }
2656
2657 case LT_TROPIC:
2658 if (GetTropicZone(tile) == TROPICZONE_DESERT) {
2659 new_ground = RAIL_GROUND_ICE_DESERT;
2660 goto set_ground;
2661 }
2662 break;
2663 }
2664
2665 new_ground = RAIL_GROUND_GRASS;
2666
2667 if (IsPlainRail(tile) && old_ground != RAIL_GROUND_BARREN) { // wait until bottom is green
2668 /* determine direction of fence */
2669 TrackBits rail = GetTrackBits(tile);
2670
2671 Owner owner = GetTileOwner(tile);
2672 byte fences = 0;
2673
2674 for (DiagDirection d = DIAGDIR_BEGIN; d < DIAGDIR_END; d++) {
2675 static const TrackBits dir_to_trackbits[DIAGDIR_END] = {TRACK_BIT_3WAY_NE, TRACK_BIT_3WAY_SE, TRACK_BIT_3WAY_SW, TRACK_BIT_3WAY_NW};
2676
2677 /* Track bit on this edge => no fence. */
2678 if ((rail & dir_to_trackbits[d]) != TRACK_BIT_NONE) continue;
2679
2680 TileIndex tile2 = tile + TileOffsByDiagDir(d);
2681
2682 /* Show fences if it's a house, industry, object, road, tunnelbridge or not owned by us. */
2683 if (!IsValidTile(tile2) || IsTileType(tile2, MP_HOUSE) || IsTileType(tile2, MP_INDUSTRY) ||
2684 IsTileType(tile2, MP_ROAD) || (IsTileType(tile2, MP_OBJECT) && !IsObjectType(tile2, OBJECT_OWNED_LAND)) || IsTileType(tile2, MP_TUNNELBRIDGE) || !IsTileOwner(tile2, owner)) {
2685 fences |= 1 << d;
2686 }
2687 }
2688
2689 switch (fences) {
2690 case 0: break;
2691 case (1 << DIAGDIR_NE): new_ground = RAIL_GROUND_FENCE_NE; break;
2692 case (1 << DIAGDIR_SE): new_ground = RAIL_GROUND_FENCE_SE; break;
2693 case (1 << DIAGDIR_SW): new_ground = RAIL_GROUND_FENCE_SW; break;
2694 case (1 << DIAGDIR_NW): new_ground = RAIL_GROUND_FENCE_NW; break;
2695 case (1 << DIAGDIR_NE) | (1 << DIAGDIR_SW): new_ground = RAIL_GROUND_FENCE_NESW; break;
2696 case (1 << DIAGDIR_SE) | (1 << DIAGDIR_NW): new_ground = RAIL_GROUND_FENCE_SENW; break;
2697 case (1 << DIAGDIR_NE) | (1 << DIAGDIR_SE): new_ground = RAIL_GROUND_FENCE_VERT1; break;
2698 case (1 << DIAGDIR_NE) | (1 << DIAGDIR_NW): new_ground = RAIL_GROUND_FENCE_HORIZ2; break;
2699 case (1 << DIAGDIR_SE) | (1 << DIAGDIR_SW): new_ground = RAIL_GROUND_FENCE_HORIZ1; break;
2700 case (1 << DIAGDIR_SW) | (1 << DIAGDIR_NW): new_ground = RAIL_GROUND_FENCE_VERT2; break;
2701 default: NOT_REACHED();
2702 }
2703 }
2704
2705 set_ground:
2706 if (old_ground != new_ground) {
2707 SetRailGroundType(tile, new_ground);
2708 MarkTileDirtyByTile(tile);
2709 }
2710 }
2711
2712
2713 static TrackStatus GetTileTrackStatus_Track(TileIndex tile, TransportType mode, uint, DiagDirection side)
2714 {
2715 /* Case of half tile slope with water. */
2716 if (mode == TRANSPORT_WATER && IsPlainRail(tile) && GetRailGroundType(tile) == RAIL_GROUND_WATER && IsSlopeWithOneCornerRaised(GetTileSlope(tile))) {
2717 TrackBits tb = GetTrackBits(tile);
2718 switch (tb) {
2719 default: NOT_REACHED();
2720 case TRACK_BIT_UPPER: tb = TRACK_BIT_LOWER; break;
2721 case TRACK_BIT_LOWER: tb = TRACK_BIT_UPPER; break;
2722 case TRACK_BIT_LEFT: tb = TRACK_BIT_RIGHT; break;
2723 case TRACK_BIT_RIGHT: tb = TRACK_BIT_LEFT; break;
2724 }
2725 return CombineTrackStatus(TrackBitsToTrackdirBits(tb), TRACKDIR_BIT_NONE);
2726 }
2727
2728 if (mode != TRANSPORT_RAIL) return 0;
2729
2730 TrackBits trackbits = TRACK_BIT_NONE;
2731 TrackdirBits red_signals = TRACKDIR_BIT_NONE;
2732
2733 switch (GetRailTileType(tile)) {
2734 default: NOT_REACHED();
2735 case RAIL_TILE_NORMAL:
2736 trackbits = GetTrackBits(tile);
2737 break;
2738
2739 case RAIL_TILE_SIGNALS: {
2740 trackbits = GetTrackBits(tile);
2741 byte a = GetPresentSignals(tile);
2742 uint b = GetSignalStates(tile);
2743
2744 b &= a;
2745
2746 /* When signals are not present (in neither direction),
2747 * we pretend them to be green. Otherwise, it depends on
2748 * the signal type. For signals that are only active from
2749 * one side, we set the missing signals explicitly to
2750 * `green'. Otherwise, they implicitly become `red'. */
2751 if (!IsOnewaySignal(tile, TRACK_UPPER) || (a & SignalOnTrack(TRACK_UPPER)) == 0) b |= ~a & SignalOnTrack(TRACK_UPPER);
2752 if (!IsOnewaySignal(tile, TRACK_LOWER) || (a & SignalOnTrack(TRACK_LOWER)) == 0) b |= ~a & SignalOnTrack(TRACK_LOWER);
2753
2754 if ((b & 0x8) == 0) red_signals |= (TRACKDIR_BIT_LEFT_N | TRACKDIR_BIT_X_NE | TRACKDIR_BIT_Y_SE | TRACKDIR_BIT_UPPER_E);
2755 if ((b & 0x4) == 0) red_signals |= (TRACKDIR_BIT_LEFT_S | TRACKDIR_BIT_X_SW | TRACKDIR_BIT_Y_NW | TRACKDIR_BIT_UPPER_W);
2756 if ((b & 0x2) == 0) red_signals |= (TRACKDIR_BIT_RIGHT_N | TRACKDIR_BIT_LOWER_E);
2757 if ((b & 0x1) == 0) red_signals |= (TRACKDIR_BIT_RIGHT_S | TRACKDIR_BIT_LOWER_W);
2758
2759 break;
2760 }
2761
2762 case RAIL_TILE_DEPOT: {
2763 DiagDirection dir = GetRailDepotDirection(tile);
2764
2765 if (side != INVALID_DIAGDIR && side != dir) break;
2766
2767 trackbits = DiagDirToDiagTrackBits(dir);
2768 break;
2769 }
2770 }
2771
2772 return CombineTrackStatus(TrackBitsToTrackdirBits(trackbits), red_signals);
2773 }
2774
2775 static bool ClickTile_Track(TileIndex tile)
2776 {
2777 if (!IsRailDepot(tile)) return false;
2778
2779 ShowDepotWindow(tile, VEH_TRAIN);
2780 return true;
2781 }
2782
2783 static void GetTileDesc_Track(TileIndex tile, TileDesc *td)
2784 {
2785 const RailTypeInfo *rti = GetRailTypeInfo(GetRailType(tile));
2786 td->rail_speed = rti->max_speed;
2787 td->railtype = rti->strings.name;
2788 td->owner[0] = GetTileOwner(tile);
2789 switch (GetRailTileType(tile)) {
2790 case RAIL_TILE_NORMAL:
2791 td->str = STR_LAI_RAIL_DESCRIPTION_TRACK;
2792 break;
2793
2794 case RAIL_TILE_SIGNALS: {
2795 static const StringID signal_type[6][6] = {
2796 {
2797 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NORMAL_SIGNALS,
2798 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NORMAL_PRESIGNALS,
2799 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NORMAL_EXITSIGNALS,
2800 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NORMAL_COMBOSIGNALS,
2801 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NORMAL_PBSSIGNALS,
2802 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NORMAL_NOENTRYSIGNALS
2803 },
2804 {
2805 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NORMAL_PRESIGNALS,
2806 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PRESIGNALS,
2807 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PRE_EXITSIGNALS,
2808 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PRE_COMBOSIGNALS,
2809 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PRE_PBSSIGNALS,
2810 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PRE_NOENTRYSIGNALS
2811 },
2812 {
2813 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NORMAL_EXITSIGNALS,
2814 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PRE_EXITSIGNALS,
2815 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_EXITSIGNALS,
2816 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_EXIT_COMBOSIGNALS,
2817 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_EXIT_PBSSIGNALS,
2818 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_EXIT_NOENTRYSIGNALS
2819 },
2820 {
2821 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NORMAL_COMBOSIGNALS,
2822 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PRE_COMBOSIGNALS,
2823 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_EXIT_COMBOSIGNALS,
2824 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_COMBOSIGNALS,
2825 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_COMBO_PBSSIGNALS,
2826 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_COMBO_NOENTRYSIGNALS
2827 },
2828 {
2829 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NORMAL_PBSSIGNALS,
2830 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PRE_PBSSIGNALS,
2831 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_EXIT_PBSSIGNALS,
2832 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_COMBO_PBSSIGNALS,
2833 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PBSSIGNALS,
2834 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PBS_NOENTRYSIGNALS
2835 },
2836 {
2837 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NORMAL_NOENTRYSIGNALS,
2838 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PRE_NOENTRYSIGNALS,
2839 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_EXIT_NOENTRYSIGNALS,
2840 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_COMBO_NOENTRYSIGNALS,
2841 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_PBS_NOENTRYSIGNALS,
2842 STR_LAI_RAIL_DESCRIPTION_TRACK_WITH_NOENTRYSIGNALS
2843 }
2844 };
2845
2846 SignalType primary_signal;
2847 SignalType secondary_signal;
2848 if (HasSignalOnTrack(tile, TRACK_UPPER)) {
2849 primary_signal = GetSignalType(tile, TRACK_UPPER);
2850 secondary_signal = HasSignalOnTrack(tile, TRACK_LOWER) ? GetSignalType(tile, TRACK_LOWER) : primary_signal;
2851 } else {
2852 secondary_signal = primary_signal = GetSignalType(tile, TRACK_LOWER);
2853 }
2854
2855 td->str = signal_type[secondary_signal][primary_signal];
2856 break;
2857 }
2858
2859 case RAIL_TILE_DEPOT:
2860 td->str = STR_LAI_RAIL_DESCRIPTION_TRAIN_DEPOT;
2861 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) {
2862 if (td->rail_speed > 0) {
2863 td->rail_speed = std::min<uint16_t>(td->rail_speed, 61);
2864 } else {
2865 td->rail_speed = 61;
2866 }
2867 }
2868 td->build_date = Depot::GetByTile(tile)->build_date;
2869 break;
2870
2871 default:
2872 NOT_REACHED();
2873 }
2874 }
2875
2876 static void ChangeTileOwner_Track(TileIndex tile, Owner old_owner, Owner new_owner)
2877 {
2878 if (!IsTileOwner(tile, old_owner)) return;
2879
2880 if (new_owner != INVALID_OWNER) {
2881 /* Update company infrastructure counts. No need to dirty windows here, we'll redraw the whole screen anyway. */
2882 uint num_pieces = 1;
2883 if (IsPlainRail(tile)) {
2884 TrackBits bits = GetTrackBits(tile);
2885 num_pieces = CountBits(bits);
2886 if (TracksOverlap(bits)) num_pieces *= num_pieces;
2887 }
2888 RailType rt = GetRailType(tile);
2889 Company::Get(old_owner)->infrastructure.rail[rt] -= num_pieces;
2890 Company::Get(new_owner)->infrastructure.rail[rt] += num_pieces;
2891
2892 if (HasSignals(tile)) {
2893 uint num_sigs = CountBits(GetPresentSignals(tile));
2894 Company::Get(old_owner)->infrastructure.signal -= num_sigs;
2895 Company::Get(new_owner)->infrastructure.signal += num_sigs;
2896 }
2897
2898 SetTileOwner(tile, new_owner);
2899 } else {
2900 Command<CMD_LANDSCAPE_CLEAR>::Do(DC_EXEC | DC_BANKRUPT, tile);
2901 }
2902 }
2903
2904 static const byte _fractcoords_behind[4] = { 0x8F, 0x8, 0x80, 0xF8 };
2905 static const byte _fractcoords_enter[4] = { 0x8A, 0x48, 0x84, 0xA8 };
2906 static const int8_t _deltacoord_leaveoffset[8] = {
2907 -1, 0, 1, 0, /* x */
2908 0, 1, 0, -1 /* y */
2909 };
2910
2911
2918 int TicksToLeaveDepot(const Train *v)
2919 {
2920 DiagDirection dir = GetRailDepotDirection(v->tile);
2921 int length = v->CalcNextVehicleOffset();
2922
2923 switch (dir) {
2924 case DIAGDIR_NE: return ((int)(v->x_pos & 0x0F) - ((_fractcoords_enter[dir] & 0x0F) - (length + 1)));
2925 case DIAGDIR_SE: return -((int)(v->y_pos & 0x0F) - ((_fractcoords_enter[dir] >> 4) + (length + 1)));
2926 case DIAGDIR_SW: return -((int)(v->x_pos & 0x0F) - ((_fractcoords_enter[dir] & 0x0F) + (length + 1)));
2927 case DIAGDIR_NW: return ((int)(v->y_pos & 0x0F) - ((_fractcoords_enter[dir] >> 4) - (length + 1)));
2928 default: NOT_REACHED();
2929 }
2930 }
2931
2936 static VehicleEnterTileStatus VehicleEnter_Track(Vehicle *u, TileIndex tile, int x, int y)
2937 {
2938 /* This routine applies only to trains in depot tiles. */
2939 if (u->type != VEH_TRAIN || !IsRailDepotTile(tile)) return VETSB_CONTINUE;
2940
2941 /* Depot direction. */
2942 DiagDirection dir = GetRailDepotDirection(tile);
2943
2944 byte fract_coord = (x & 0xF) + ((y & 0xF) << 4);
2945
2946 /* Make sure a train is not entering the tile from behind. */
2947 if (_fractcoords_behind[dir] == fract_coord) return VETSB_CANNOT_ENTER;
2948
2949 Train *v = Train::From(u);
2950
2951 /* Leaving depot? */
2952 if (v->direction == DiagDirToDir(dir)) {
2953 /* Calculate the point where the following wagon should be activated. */
2954 int length = v->CalcNextVehicleOffset();
2955
2956 byte fract_coord_leave =
2957 ((_fractcoords_enter[dir] & 0x0F) + // x
2958 (length + 1) * _deltacoord_leaveoffset[dir]) +
2959 (((_fractcoords_enter[dir] >> 4) + // y
2960 ((length + 1) * _deltacoord_leaveoffset[dir + 4])) << 4);
2961
2962 if (fract_coord_leave == fract_coord) {
2963 /* Leave the depot. */
2964 if ((v = v->Next()) != nullptr) {
2965 v->vehstatus &= ~VS_HIDDEN;
2966 v->track = (DiagDirToAxis(dir) == AXIS_X ? TRACK_BIT_X : TRACK_BIT_Y);
2967 }
2968 }
2969 } else if (_fractcoords_enter[dir] == fract_coord) {
2970 /* Entering depot. */
2971 assert(DiagDirToDir(ReverseDiagDir(dir)) == v->direction);
2972 v->track = TRACK_BIT_DEPOT,
2973 v->vehstatus |= VS_HIDDEN;
2974 v->direction = ReverseDir(v->direction);
2975 if (v->Next() == nullptr) VehicleEnterDepot(v->First());
2976 v->tile = tile;
2977
2978 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
2979 return VETSB_ENTERED_WORMHOLE;
2980 }
2981
2982 return VETSB_CONTINUE;
2983 }
2984
2996 static CommandCost TestAutoslopeOnRailTile(TileIndex tile, uint flags, int z_old, Slope tileh_old, int z_new, Slope tileh_new, TrackBits rail_bits)
2997 {
2998 if (!_settings_game.construction.build_on_slopes || !AutoslopeEnabled()) return_cmd_error(STR_ERROR_MUST_REMOVE_RAILROAD_TRACK);
2999
3000 /* Is the slope-rail_bits combination valid in general? I.e. is it safe to call GetRailFoundation() ? */
3001 if (CheckRailSlope(tileh_new, rail_bits, TRACK_BIT_NONE, tile).Failed()) return_cmd_error(STR_ERROR_MUST_REMOVE_RAILROAD_TRACK);
3002
3003 /* Get the slopes on top of the foundations */
3004 z_old += ApplyFoundationToSlope(GetRailFoundation(tileh_old, rail_bits), &tileh_old);
3005 z_new += ApplyFoundationToSlope(GetRailFoundation(tileh_new, rail_bits), &tileh_new);
3006
3007 Corner track_corner;
3008 switch (rail_bits) {
3009 case TRACK_BIT_LEFT: track_corner = CORNER_W; break;
3010 case TRACK_BIT_LOWER: track_corner = CORNER_S; break;
3011 case TRACK_BIT_RIGHT: track_corner = CORNER_E; break;
3012 case TRACK_BIT_UPPER: track_corner = CORNER_N; break;
3013
3014 /* Surface slope must not be changed */
3015 default:
3016 if (z_old != z_new || tileh_old != tileh_new) return_cmd_error(STR_ERROR_MUST_REMOVE_RAILROAD_TRACK);
3017 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
3018 }
3019
3020 /* The height of the track_corner must not be changed. The rest ensures GetRailFoundation() already. */
3021 z_old += GetSlopeZInCorner(RemoveHalftileSlope(tileh_old), track_corner);
3022 z_new += GetSlopeZInCorner(RemoveHalftileSlope(tileh_new), track_corner);
3023 if (z_old != z_new) return_cmd_error(STR_ERROR_MUST_REMOVE_RAILROAD_TRACK);
3024
3025 CommandCost cost = CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
3026 /* Make the ground dirty, if surface slope has changed */
3027 if (tileh_old != tileh_new) {
3028 /* If there is flat water on the lower halftile add the cost for clearing it */
3029 if (GetRailGroundType(tile) == RAIL_GROUND_WATER && IsSlopeWithOneCornerRaised(tileh_old)) cost.AddCost(_price[PR_CLEAR_WATER]);
3030 if ((flags & DC_EXEC) != 0) SetRailGroundType(tile, RAIL_GROUND_BARREN);
3031 }
3032 return cost;
3033 }
3034
3038 static Vehicle *EnsureNoShipProc(Vehicle *v, void *)
3039 {
3040 return v->type == VEH_SHIP ? v : nullptr;
3041 }
3042
3043 static CommandCost TerraformTile_Track(TileIndex tile, DoCommandFlag flags, int z_new, Slope tileh_new)
3044 {
3045 int z_old;
3046 Slope tileh_old = GetTileSlope(tile, &z_old);
3047 if (IsPlainRail(tile)) {
3048 TrackBits rail_bits = GetTrackBits(tile);
3049 /* Is there flat water on the lower halftile that must be cleared expensively? */
3050 bool was_water = (GetRailGroundType(tile) == RAIL_GROUND_WATER && IsSlopeWithOneCornerRaised(tileh_old));
3051
3052 /* Allow clearing the water only if there is no ship */
3053 if (was_water && HasVehicleOnPos(tile, nullptr, &EnsureNoShipProc)) return_cmd_error(STR_ERROR_SHIP_IN_THE_WAY);
3054
3055 /* First test autoslope. However if it succeeds we still have to test the rest, because non-autoslope terraforming is cheaper. */
3056 CommandCost autoslope_result = TestAutoslopeOnRailTile(tile, flags, z_old, tileh_old, z_new, tileh_new, rail_bits);
3057
3058 /* When there is only a single horizontal/vertical track, one corner can be terraformed. */
3059 Corner allowed_corner;
3060 switch (rail_bits) {
3061 case TRACK_BIT_RIGHT: allowed_corner = CORNER_W; break;
3062 case TRACK_BIT_UPPER: allowed_corner = CORNER_S; break;
3063 case TRACK_BIT_LEFT: allowed_corner = CORNER_E; break;
3064 case TRACK_BIT_LOWER: allowed_corner = CORNER_N; break;
3065 default: return autoslope_result;
3066 }
3067
3068 Foundation f_old = GetRailFoundation(tileh_old, rail_bits);
3069
3070 /* Do not allow terraforming if allowed_corner is part of anti-zig-zag foundations */
3071 if (tileh_old != SLOPE_NS && tileh_old != SLOPE_EW && IsSpecialRailFoundation(f_old)) return autoslope_result;
3072
3073 /* Everything is valid, which only changes allowed_corner */
3074 for (Corner corner = (Corner)0; corner < CORNER_END; corner = (Corner)(corner + 1)) {
3075 if (allowed_corner == corner) continue;
3076 if (z_old + GetSlopeZInCorner(tileh_old, corner) != z_new + GetSlopeZInCorner(tileh_new, corner)) return autoslope_result;
3077 }
3078
3079 /* Make the ground dirty */
3080 if ((flags & DC_EXEC) != 0) SetRailGroundType(tile, RAIL_GROUND_BARREN);
3081
3082 /* allow terraforming */
3083 return CommandCost(EXPENSES_CONSTRUCTION, was_water ? _price[PR_CLEAR_WATER] : (Money)0);
3084 } else if (_settings_game.construction.build_on_slopes && AutoslopeEnabled() &&
3085 AutoslopeCheckForEntranceEdge(tile, z_new, tileh_new, GetRailDepotDirection(tile))) {
3086 return CommandCost(EXPENSES_CONSTRUCTION, _price[PR_BUILD_FOUNDATION]);
3087 }
3088 return Command<CMD_LANDSCAPE_CLEAR>::Do(flags, tile);
3089 }
3090
3091
3092 extern const TileTypeProcs _tile_type_rail_procs = {
3093 DrawTile_Track, // draw_tile_proc
3094 GetSlopePixelZ_Track, // get_slope_z_proc
3095 ClearTile_Track, // clear_tile_proc
3096 nullptr, // add_accepted_cargo_proc
3097 GetTileDesc_Track, // get_tile_desc_proc
3098 GetTileTrackStatus_Track, // get_tile_track_status_proc
3099 ClickTile_Track, // click_tile_proc
3100 nullptr, // animate_tile_proc
3101 TileLoop_Track, // tile_loop_proc
3102 ChangeTileOwner_Track, // change_tile_owner_proc
3103 nullptr, // add_produced_cargo_proc
3104 VehicleEnter_Track, // vehicle_enter_tile_proc
3105 GetFoundation_Track, // get_foundation_proc
3106 TerraformTile_Track, // terraform_tile_proc
3107 };
RailTypeInfo::convert
CursorID convert
Cursor for converting track.
Definition: rail.h:172
RailTypeInfo::track_y
SpriteID track_y
single piece of rail in Y direction, with ground
Definition: rail.h:134
TileY
static debug_inline uint TileY(TileIndex tile)
Get the Y component of a tile.
Definition: map_func.h:437
TileInfo::z
int z
Height.
Definition: tile_cmd.h:48
MP_HOUSE
@ MP_HOUSE
A house by a town.
Definition: tile_type.h:51
DeleteNewGRFInspectWindow
void DeleteNewGRFInspectWindow(GrfSpecFeature feature, uint index)
Delete inspect window for a given feature and index.
Definition: newgrf_debug_gui.cpp:739
CmdSignalTrackHelper
static CommandCost CmdSignalTrackHelper(DoCommandFlag flags, TileIndex tile, TileIndex end_tile, Track track, SignalType sigtype, SignalVariant sigvar, bool mode, bool remove, bool autofill, bool minimise_gaps, int signal_density)
Build many signals by dragging; AutoSignals.
Definition: rail_cmd.cpp:1258
DIAGDIR_SE
@ DIAGDIR_SE
Southeast.
Definition: direction_type.h:76
SLOPE_SE
@ SLOPE_SE
south and east corner are raised
Definition: slope_type.h:57
tunnelbridge.h
VETSB_CANNOT_ENTER
@ VETSB_CANNOT_ENTER
The vehicle cannot enter the tile.
Definition: tile_cmd.h:38
TCX_UPPER_HALFTILE
@ TCX_UPPER_HALFTILE
Querying information about the upper part of a tile with halftile foundation.
Definition: newgrf_commons.h:25
CmdRemoveSingleRail
CommandCost CmdRemoveSingleRail(DoCommandFlag flags, TileIndex tile, Track track)
Remove a single piece of track.
Definition: rail_cmd.cpp:615
RTO_JUNCTION_SE
@ RTO_JUNCTION_SE
Ballast for junction 'pointing' SE.
Definition: rail.h:84
TROPICZONE_DESERT
@ TROPICZONE_DESERT
Tile is desert.
Definition: tile_type.h:78
RailTypeInfo::build_ew_rail
SpriteID build_ew_rail
button for building single rail in E-W direction
Definition: rail.h:155
ReverseDir
Direction ReverseDir(Direction d)
Return the reverse of a direction.
Definition: direction_func.h:54
InvalidateWindowData
void InvalidateWindowData(WindowClass cls, WindowNumber number, int data, bool gui_scope)
Mark window data of the window of a given class and specific window number as invalid (in need of re-...
Definition: window.cpp:3204
sound_func.h
GroundSpritePaletteTransform
PaletteID GroundSpritePaletteTransform(SpriteID image, PaletteID pal, PaletteID default_pal)
Applies PALETTE_MODIFIER_COLOUR to a palette entry of a ground sprite.
Definition: sprite.h:168
RTO_W
@ RTO_W
Piece of rail in western corner.
Definition: rail.h:76
FOUNDATION_HALFTILE_N
@ FOUNDATION_HALFTILE_N
Level north halftile non-continuously.
Definition: slope_type.h:105
_original_railtypes
static const RailTypeInfo _original_railtypes[]
Global Railtype definition.
Definition: railtypes.h:19
AXIS_Y
@ AXIS_Y
The y axis.
Definition: direction_type.h:118
FindFirstTrack
Track FindFirstTrack(TrackBits tracks)
Returns first Track from TrackBits or INVALID_TRACK.
Definition: track_func.h:177
EnsureNoShipProc
static Vehicle * EnsureNoShipProc(Vehicle *v, void *)
Test-procedure for HasVehicleOnPos to check for a ship.
Definition: rail_cmd.cpp:3038
TRACK_BIT_NONE
@ TRACK_BIT_NONE
No track.
Definition: track_type.h:36
SetBit
constexpr T SetBit(T &x, const uint8_t y)
Set a bit in a variable.
Definition: bitmath_func.hpp:121
Order::IsType
bool IsType(OrderType type) const
Check whether this order is of the given type.
Definition: order_base.h:71
Pool::PoolItem<&_company_pool >::Get
static Titem * Get(size_t index)
Returns Titem with given index.
Definition: pool_type.hpp:339
GetDisallowedRoadDirections
DisallowedRoadDirections GetDisallowedRoadDirections(Tile t)
Gets the disallowed directions.
Definition: road_map.h:301
GetCrossingRailTrack
Track GetCrossingRailTrack(Tile tile)
Get the rail track of a level crossing.
Definition: road_map.h:358
water.h
TRACK_BIT_3WAY_SW
@ TRACK_BIT_3WAY_SW
"Arrow" to the south-west
Definition: track_type.h:48
IsHalftileSlope
static constexpr bool IsHalftileSlope(Slope s)
Checks for non-continuous slope on halftile foundations.
Definition: slope_func.h:47
CmdRemoveRailroadTrack
CommandCost CmdRemoveRailroadTrack(DoCommandFlag flags, TileIndex end_tile, TileIndex start_tile, Track track)
Build rail on a stretch of track.
Definition: rail_cmd.cpp:947
RFO_SLOPE_NW_SW
@ RFO_SLOPE_NW_SW
Slope NW, Track Y, Fence SW.
Definition: rail.h:118
RAIL_GROUND_HALF_SNOW
@ RAIL_GROUND_HALF_SNOW
Snow only on higher part of slope (steep or one corner raised)
Definition: rail_map.h:500
RFO_SLOPE_SW_SE
@ RFO_SLOPE_SW_SE
Slope SW, Track X, Fence SE.
Definition: rail.h:115
train.h
ValParamRailType
bool ValParamRailType(const RailType rail)
Validate functions for rail building.
Definition: rail.cpp:206
command_func.h
RailFenceOffset
RailFenceOffset
Offsets from base sprite for fence sprites.
Definition: rail.h:102
IsInsideMM
constexpr bool IsInsideMM(const T x, const size_t min, const size_t max) noexcept
Checks if a value is in an interval.
Definition: math_func.hpp:268
_fence_offsets
static FenceOffset _fence_offsets[]
Offsets for drawing fences.
Definition: rail_cmd.cpp:1925
YapfNotifyTrackLayoutChange
void YapfNotifyTrackLayoutChange(TileIndex tile, Track track)
Use this function to notify YAPF that track layout (or signal configuration) has change.
Definition: yapf_rail.cpp:644
GetTunnelBridgeLength
uint GetTunnelBridgeLength(TileIndex begin, TileIndex end)
Calculates the length of a tunnel or a bridge (without end tiles)
Definition: tunnelbridge.h:25
PathfinderSettings::forbid_90_deg
bool forbid_90_deg
forbid trains to make 90 deg turns
Definition: settings_type.h:489
CMD_ERROR
static const CommandCost CMD_ERROR
Define a default return value for a failed command.
Definition: command_func.h:28
RailTypeInfo::build_y_rail
SpriteID build_y_rail
button for building single rail in Y direction
Definition: rail.h:156
TrackStatusToTrackdirBits
TrackdirBits TrackStatusToTrackdirBits(TrackStatus ts)
Returns the present-trackdir-information of a TrackStatus.
Definition: track_func.h:352
AddTileIndexDiffCWrap
TileIndex AddTileIndexDiffCWrap(TileIndex tile, TileIndexDiffC diff)
Add a TileIndexDiffC to a TileIndex and returns the new one.
Definition: map_func.h:522
FlatteningFoundation
Foundation FlatteningFoundation(Slope s)
Returns the foundation needed to flatten a slope.
Definition: slope_func.h:369
CanBuildDepotByTileh
bool CanBuildDepotByTileh(DiagDirection direction, Slope tileh)
Find out if the slope of the tile is suitable to build a depot of given direction.
Definition: depot_func.h:27
GetRailTypeInfo
const RailTypeInfo * GetRailTypeInfo(RailType railtype)
Returns a pointer to the Railtype information for a given railtype.
Definition: rail.h:307
CmdBuildSingleSignal
CommandCost CmdBuildSingleSignal(DoCommandFlag flags, TileIndex tile, Track track, SignalType sigtype, SignalVariant sigvar, bool convert_signal, bool skip_existing_signals, bool ctrl_pressed, SignalType cycle_start, SignalType cycle_stop, uint8_t num_dir_cycle, byte signals_copy)
Build signals, alternate between double/single, signal/semaphore, pre/exit/combo-signals,...
Definition: rail_cmd.cpp:1052
RailTypeInfo::GetRailtypeSpriteOffset
uint GetRailtypeSpriteOffset() const
Offset between the current railtype and normal rail.
Definition: rail.h:295
CmdBuildSignalTrack
CommandCost CmdBuildSignalTrack(DoCommandFlag flags, TileIndex tile, TileIndex end_tile, Track track, SignalType sigtype, SignalVariant sigvar, bool mode, bool autofill, bool minimise_gaps, byte signal_density)
Build signals on a stretch of track.
Definition: rail_cmd.cpp:1449
TicksToLeaveDepot
int TicksToLeaveDepot(const Train *v)
Compute number of ticks when next wagon will leave a depot.
Definition: rail_cmd.cpp:2918
TO_BUILDINGS
@ TO_BUILDINGS
company buildings - depots, stations, HQ, ...
Definition: transparency.h:27
TileInfo
Tile information, used while rendering the tile.
Definition: tile_cmd.h:43
HasVehicleOnPos
bool HasVehicleOnPos(TileIndex tile, void *data, VehicleFromPosProc *proc)
Checks whether a vehicle is on a specific location.
Definition: vehicle.cpp:520
GameCreationSettings::landscape
byte landscape
the landscape we're currently in
Definition: settings_type.h:355
Backup
Class to backup a specific variable and restore it later.
Definition: backup_type.hpp:21
TileDesc::railtype
StringID railtype
Type of rail on the tile.
Definition: tile_cmd.h:64
RTF_NO_SPRITE_COMBINE
@ RTF_NO_SPRITE_COMBINE
Bit number for using non-combined junctions.
Definition: rail.h:29
RailTypeInfo::tunnel
SpriteID tunnel
tunnel sprites base
Definition: rail.h:145
company_base.h
SignalAlongTrackdir
byte SignalAlongTrackdir(Trackdir trackdir)
Maps a trackdir to the bit that stores its status in the map arrays, in the direction along with the ...
Definition: signal_func.h:22
RAIL_GROUND_FENCE_SE
@ RAIL_GROUND_FENCE_SE
Grass with a fence at the SE edge.
Definition: rail_map.h:489
SpecializedVehicle::Next
T * Next() const
Get next vehicle in the chain.
Definition: vehicle_base.h:1126
tunnelbridge_map.h
timer_game_calendar.h
RailClearCost
Money RailClearCost(RailType railtype)
Returns the 'cost' of clearing the specified railtype.
Definition: rail.h:386
IsOnewaySignal
bool IsOnewaySignal(Tile t, Track track)
One-way signals can't be passed the 'wrong' way.
Definition: rail_map.h:319
GetReservedTrackbits
TrackBits GetReservedTrackbits(TileIndex t)
Get the reserved trackbits for any tile, regardless of type.
Definition: pbs.cpp:24
TileDesc::owner
Owner owner[4]
Name of the owner(s)
Definition: tile_cmd.h:55
CmdRailTrackHelper
static CommandCost CmdRailTrackHelper(DoCommandFlag flags, TileIndex tile, TileIndex end_tile, RailType railtype, Track track, bool remove, bool auto_remove_signals, bool fail_on_obstacle)
Build or remove a stretch of railroad tracks.
Definition: rail_cmd.cpp:876
SLOPE_NW
@ SLOPE_NW
north and west corner are raised
Definition: slope_type.h:55
company_gui.h
TrackdirToTrack
Track TrackdirToTrack(Trackdir trackdir)
Returns the Track that a given Trackdir represents.
Definition: track_func.h:262
TrackdirToExitdir
DiagDirection TrackdirToExitdir(Trackdir trackdir)
Maps a trackdir to the (4-way) direction the tile is exited when following that trackdir.
Definition: track_func.h:439
RemoveHalftileSlope
static constexpr Slope RemoveHalftileSlope(Slope s)
Removes a halftile slope from a slope.
Definition: slope_func.h:60
LEVELCROSSING_TRACKBIT_FACTOR
static const uint LEVELCROSSING_TRACKBIT_FACTOR
Multiplier for how many regular track bits a level crossing counts.
Definition: economy_type.h:243
IsPlainRail
static debug_inline bool IsPlainRail(Tile t)
Returns whether this is plain rails, with or without signals.
Definition: rail_map.h:49
elrail_func.h
VehicleEnter_Track
static VehicleEnterTileStatus VehicleEnter_Track(Vehicle *u, TileIndex tile, int x, int y)
Tile callback routine when vehicle enters tile.
Definition: rail_cmd.cpp:2936
StringID
uint32_t StringID
Numeric value that represents a string, independent of the selected language.
Definition: strings_type.h:16
TRACK_LOWER
@ TRACK_LOWER
Track in the lower corner of the tile (south)
Definition: track_type.h:24
SIG_SEMAPHORE
@ SIG_SEMAPHORE
Old-fashioned semaphore signal.
Definition: signal_type.h:18
RAIL_TILE_SIGNALS
@ RAIL_TILE_SIGNALS
Normal rail tile with signals.
Definition: rail_map.h:25
MarkDirtyAdjacentLevelCrossingTiles
void MarkDirtyAdjacentLevelCrossingTiles(TileIndex tile, Axis road_axis)
Find adjacent level crossing tiles in this multi-track crossing and mark them dirty.
Definition: train_cmd.cpp:1804
Vehicle::vehstatus
byte vehstatus
Status.
Definition: vehicle_base.h:349
GetSlopeZInCorner
int GetSlopeZInCorner(Slope tileh, Corner corner)
Determine the Z height of a corner relative to TileZ.
Definition: landscape.cpp:332
GetCrossingRailBits
TrackBits GetCrossingRailBits(Tile tile)
Get the rail track bits of a level crossing.
Definition: road_map.h:368
DIAGDIR_END
@ DIAGDIR_END
Used for iterations.
Definition: direction_type.h:79
UpdateTrainPowerProc
static Vehicle * UpdateTrainPowerProc(Vehicle *v, void *data)
Update power of train under which is the railtype being converted.
Definition: rail_cmd.cpp:1533
AutoslopeEnabled
bool AutoslopeEnabled()
Tests if autoslope is enabled for _current_company.
Definition: autoslope.h:44
TRACK_BEGIN
@ TRACK_BEGIN
Used for iterations.
Definition: track_type.h:20
Pool::PoolItem::index
Tindex index
Index of this pool item.
Definition: pool_type.hpp:238
DiagDirToAxis
Axis DiagDirToAxis(DiagDirection d)
Convert a DiagDirection to the axis.
Definition: direction_func.h:214
HalftileFoundation
Foundation HalftileFoundation(Corner corner)
Returns the halftile foundation for single horizontal/vertical track.
Definition: slope_func.h:391
HasDepotReservation
bool HasDepotReservation(Tile t)
Get the reservation state of the depot.
Definition: rail_map.h:258
SetPresentSignals
void SetPresentSignals(Tile tile, uint signals)
Set whether the given signals are present (Along/AgainstTrackDir)
Definition: rail_map.h:383
RailTypeInfo::signals
SpriteID signals[SIGTYPE_END][2][2]
signal GUI sprites (type, variant, state)
Definition: rail.h:161
TRACK_X
@ TRACK_X
Track along the x-axis (north-east to south-west)
Definition: track_type.h:21
RAIL_GROUND_FENCE_NW
@ RAIL_GROUND_FENCE_NW
Grass with a fence at the NW edge.
Definition: rail_map.h:488
FloodHalftile
bool FloodHalftile(TileIndex t)
Called from water_cmd if a non-flat rail-tile gets flooded and should be converted to shore.
Definition: rail_cmd.cpp:762
PalSpriteID::sprite
SpriteID sprite
The 'real' sprite.
Definition: gfx_type.h:23
HasTunnelBridgeReservation
bool HasTunnelBridgeReservation(Tile t)
Get the reservation state of the rail tunnel/bridge.
Definition: tunnelbridge_map.h:91
SLOPE_ELEVATED
@ SLOPE_ELEVATED
bit mask containing all 'simple' slopes
Definition: slope_type.h:61
INVALID_TILE
constexpr TileIndex INVALID_TILE
The very nice invalid tile marker.
Definition: tile_type.h:95
RTO_SLOPE_SW
@ RTO_SLOPE_SW
Piece of rail on slope with south-west raised.
Definition: rail.h:79
SIGNAL_STATE_GREEN
@ SIGNAL_STATE_GREEN
The signal is green.
Definition: signal_type.h:44
RAIL_GROUND_FENCE_VERT1
@ RAIL_GROUND_FENCE_VERT1
Grass with a fence at the eastern side.
Definition: rail_map.h:494
TileIterator::Create
static std::unique_ptr< TileIterator > Create(TileIndex corner1, TileIndex corner2, bool diagonal)
Create either an OrthogonalTileIterator or DiagonalTileIterator given the diagonal parameter.
Definition: tilearea.cpp:291
RailTypeInfo
This struct contains all the info that is needed to draw and construct tracks.
Definition: rail.h:127
VETSB_CONTINUE
@ VETSB_CONTINUE
Bit sets of the above specified bits.
Definition: tile_cmd.h:35
RailTypeInfo::autorail
CursorID autorail
Cursor for autorail tool.
Definition: rail.h:169
MP_RAILWAY
@ MP_RAILWAY
A railway.
Definition: tile_type.h:49
TRACKDIR_BIT_LEFT_N
@ TRACKDIR_BIT_LEFT_N
Track left, direction north.
Definition: track_type.h:111
RailTypeInfo::alternate_labels
RailTypeLabelList alternate_labels
Rail type labels this type provides in addition to the main label.
Definition: rail.h:241
BB_HEIGHT_UNDER_BRIDGE
static const uint BB_HEIGHT_UNDER_BRIDGE
Some values for constructing bounding boxes (BB).
Definition: viewport_type.h:84
IsSteepSlope
static constexpr bool IsSteepSlope(Slope s)
Checks if a slope is steep.
Definition: slope_func.h:36
IsRailStationTile
bool IsRailStationTile(Tile t)
Is this tile a station tile and a rail station?
Definition: station_map.h:102
GetPartialPixelZ
uint GetPartialPixelZ(int x, int y, Slope corners)
Determines height at given coordinate of a slope.
Definition: landscape.cpp:224
TILE_SIZE
static const uint TILE_SIZE
Tile size in world coordinates.
Definition: tile_type.h:15
RAIL_GROUND_BARREN
@ RAIL_GROUND_BARREN
Nothing (dirt)
Definition: rail_map.h:486
DrawBridgeMiddle
void DrawBridgeMiddle(const TileInfo *ti)
Draw the middle bits of a bridge.
Definition: tunnelbridge_cmd.cpp:1544
SignalState
SignalState
These are states in which a signal can be.
Definition: signal_type.h:42
IsNormalRoad
static debug_inline bool IsNormalRoad(Tile t)
Return whether a tile is a normal road.
Definition: road_map.h:64
IsLevelCrossingTile
bool IsLevelCrossingTile(Tile t)
Return whether a tile is a level crossing tile.
Definition: road_map.h:95
RailTypeInfo::single_n
SpriteID single_n
single piece of rail in the northern corner
Definition: rail.h:139
RAIL_GROUND_FENCE_SENW
@ RAIL_GROUND_FENCE_SENW
Grass with a fence at the NW and SE edges.
Definition: rail_map.h:490
IsLevelCrossing
bool IsLevelCrossing(Tile t)
Return whether a tile is a level crossing.
Definition: road_map.h:85
_settings_client
ClientSettings _settings_client
The current settings for this game.
Definition: settings.cpp:54
RailTypeInfo::rail_swne
CursorID rail_swne
Cursor for building rail in X direction.
Definition: rail.h:166
DrawRailTileSeqInGUI
void DrawRailTileSeqInGUI(int x, int y, const DrawTileSprites *dts, int32_t total_offset, uint32_t newgrf_offset, PaletteID default_palette)
Draw tile sprite sequence in GUI with railroad specifics.
Definition: sprite.h:99
VehicleEnterDepot
void VehicleEnterDepot(Vehicle *v)
Vehicle entirely entered the depot, update its status, orders, vehicle windows, service it,...
Definition: vehicle.cpp:1545
RAIL_GROUND_FENCE_VERT2
@ RAIL_GROUND_FENCE_VERT2
Grass with a fence at the western side.
Definition: rail_map.h:495
IsValidTrack
bool IsValidTrack(Track track)
Checks if a Track is valid.
Definition: track_func.h:28
SignalVariant
SignalVariant
Variant of the signal, i.e.
Definition: signal_type.h:16
MP_INDUSTRY
@ MP_INDUSTRY
Part of an industry.
Definition: tile_type.h:56
TRANSPORT_WATER
@ TRANSPORT_WATER
Transport over water.
Definition: transport_type.h:29
town.h
newgrf_debug.h
TileInfo::y
int y
Y position of the tile in unit coordinates.
Definition: tile_cmd.h:45
StrongType::Typedef< uint32_t, struct TileIndexTag, StrongType::Compare, StrongType::Integer, StrongType::Compatible< int32_t >, StrongType::Compatible< int64_t > >
SLOPE_S
@ SLOPE_S
the south corner of the tile is raised
Definition: slope_type.h:51
InitRailTypes
void InitRailTypes()
Resolve sprites of custom rail types.
Definition: rail_cmd.cpp:130
DIAGDIR_NW
@ DIAGDIR_NW
Northwest.
Definition: direction_type.h:78
Company::infrastructure
CompanyInfrastructure infrastructure
NOSAVE: Counts of company owned infrastructure.
Definition: company_base.h:143
RFO_SLOPE_SW_NW
@ RFO_SLOPE_SW_NW
Slope SW, Track X, Fence NW.
Definition: rail.h:107
CheckTrackCombination
static CommandCost CheckTrackCombination(TileIndex tile, TrackBits to_build)
Check that the new track bits may be built.
Definition: rail_cmd.cpp:241
GetHalftileSlopeCorner
static constexpr Corner GetHalftileSlopeCorner(Slope s)
Returns the leveled halftile of a halftile slope.
Definition: slope_func.h:148
_display_opt
byte _display_opt
What do we want to draw/do?
Definition: transparency_gui.cpp:26
CmdBuildRailroadTrack
CommandCost CmdBuildRailroadTrack(DoCommandFlag flags, TileIndex end_tile, TileIndex start_tile, RailType railtype, Track track, bool auto_remove_signals, bool fail_on_obstacle)
Build rail on a stretch of track.
Definition: rail_cmd.cpp:932
SetHasSignals
void SetHasSignals(Tile tile, bool signals)
Add/remove the 'has signal' bit from the RailTileType.
Definition: rail_map.h:83
VehicleSettings::road_side
byte road_side
the side of the road vehicles drive on
Definition: settings_type.h:532
TRACKDIR_BIT_Y_NW
@ TRACKDIR_BIT_Y_NW
Track y-axis, direction north-west.
Definition: track_type.h:108
Vehicle
Vehicle data structure.
Definition: vehicle_base.h:240
RailTypeInfo::strings
struct RailTypeInfo::@26 strings
Strings associated with the rail type.
GetRailType
RailType GetRailType(Tile t)
Gets the rail type of the given tile.
Definition: rail_map.h:115
DiagonalTileArea
Represents a diagonal tile area.
Definition: tilearea_type.h:70
Owner
Owner
Enum for all companies/owners.
Definition: company_type.h:18
DC_EXEC
@ DC_EXEC
execute the given command
Definition: command_type.h:371
GetSlopePixelZ
int GetSlopePixelZ(int x, int y, bool ground_vehicle)
Return world Z coordinate of a given point of a tile.
Definition: landscape.cpp:299
SubSprite
Used to only draw a part of the sprite.
Definition: gfx_type.h:225
PaletteID
uint32_t PaletteID
The number of the palette.
Definition: gfx_type.h:18
RailTypes
RailTypes
Allow incrementing of Track variables.
Definition: rail_type.h:44
RFO_SLOPE_SE_SW
@ RFO_SLOPE_SE_SW
Slope SE, Track Y, Fence SW.
Definition: rail.h:116
MP_ROAD
@ MP_ROAD
A tile with road (or tram tracks)
Definition: tile_type.h:50
CommandCost::GetErrorMessage
StringID GetErrorMessage() const
Returns the error message of a command.
Definition: command_type.h:142
TileDesc
Tile description for the 'land area information' tool.
Definition: tile_cmd.h:52
HasExactlyOneBit
constexpr bool HasExactlyOneBit(T value)
Test whether value has exactly 1 bit set.
Definition: bitmath_func.hpp:259
SetSignalStates
void SetSignalStates(Tile tile, uint state)
Set the states of the signals (Along/AgainstTrackDir)
Definition: rail_map.h:352
SLOPE_E
@ SLOPE_E
the east corner of the tile is raised
Definition: slope_type.h:52
DoCommandFlag
DoCommandFlag
List of flags for a command.
Definition: command_type.h:369
INVALID_ROADTYPE
@ INVALID_ROADTYPE
flag for invalid roadtype
Definition: road_type.h:30
TRACK_RIGHT
@ TRACK_RIGHT
Track in the right corner of the tile (east)
Definition: track_type.h:26
Foundation
Foundation
Enumeration for Foundations.
Definition: slope_type.h:93
KillFirstBit
constexpr T KillFirstBit(T value)
Clear the first bit in an integer.
Definition: bitmath_func.hpp:231
EnsureNoVehicleOnGround
CommandCost EnsureNoVehicleOnGround(TileIndex tile)
Ensure there is no vehicle at the ground at the given position.
Definition: vehicle.cpp:546
GetSignalStates
uint GetSignalStates(Tile tile)
Set the states of the signals (Along/AgainstTrackDir)
Definition: rail_map.h:362
AllocateRailType
RailType AllocateRailType(RailTypeLabel label)
Allocate a new rail type label.
Definition: rail_cmd.cpp:150
GetCrossingRoadBits
RoadBits GetCrossingRoadBits(Tile tile)
Get the road bits of a level crossing.
Definition: road_map.h:348
TRACK_BIT_UPPER
@ TRACK_BIT_UPPER
Upper track.
Definition: track_type.h:39
CommandCost::Succeeded
bool Succeeded() const
Did this command succeed?
Definition: command_type.h:162
RTO_JUNCTION_NE
@ RTO_JUNCTION_NE
Ballast for junction 'pointing' NE.
Definition: rail.h:83
TrackToTrackBits
TrackBits TrackToTrackBits(Track track)
Maps a Track to the corresponding TrackBits value.
Definition: track_func.h:77
TracksOverlap
bool TracksOverlap(TrackBits bits)
Checks if the given tracks overlap, ie form a crossing.
Definition: track_func.h:645
pbs.h
RailTypeInfo::sorting_order
byte sorting_order
The sorting order of this railtype for the toolbar dropdown.
Definition: rail.h:271
Vehicle::x_pos
int32_t x_pos
x coordinate.
Definition: vehicle_base.h:300
SignalType
SignalType
Type of signal, i.e.
Definition: signal_type.h:23
GameSettings::game_creation
GameCreationSettings game_creation
settings used during the creation of a game (map)
Definition: settings_type.h:618
GetTileTrackStatus
TrackStatus GetTileTrackStatus(TileIndex tile, TransportType mode, uint sub_mode, DiagDirection side)
Returns information about trackdirs and signal states.
Definition: landscape.cpp:556
RAILTYPE_ELECTRIC
@ RAILTYPE_ELECTRIC
Electric rails.
Definition: rail_type.h:30
RailTypeInfo::ground
SpriteID ground
ground sprite for a 3-way switch
Definition: rail.h:136
TRACK_BIT_RIGHT
@ TRACK_BIT_RIGHT
Right track.
Definition: track_type.h:42
SlopeWithThreeCornersRaised
Slope SlopeWithThreeCornersRaised(Corner corner)
Returns the slope with all except one corner raised.
Definition: slope_func.h:206
DiagDirToDiagTrackBits
TrackBits DiagDirToDiagTrackBits(DiagDirection diagdir)
Maps a (4-way) direction to the diagonal track bits incidating with that diagdir.
Definition: track_func.h:524
RailTypeInfo::build_depot
SpriteID build_depot
button for building depots
Definition: rail.h:158
ComplementSlope
Slope ComplementSlope(Slope s)
Return the complement of a slope.
Definition: slope_func.h:76
TileInfo::tileh
Slope tileh
Slope of the tile.
Definition: tile_cmd.h:46
DrawTrackFence_SE
static void DrawTrackFence_SE(const TileInfo *ti, SpriteID base_image, uint num_sprites)
Draw fence at SE border matching the tile slope.
Definition: rail_cmd.cpp:1978
GetTileType
static debug_inline TileType GetTileType(Tile tile)
Get the tiletype of a given tile.
Definition: tile_map.h:96
ROAD_X
@ ROAD_X
Full road along the x-axis (south-west + north-east)
Definition: road_type.h:58
RTO_SLOPE_NE
@ RTO_SLOPE_NE
Piece of rail on slope with north-east raised.
Definition: rail.h:77
DrawTrackBits
static void DrawTrackBits(TileInfo *ti, TrackBits track)
Draw ground sprite and track bits.
Definition: rail_cmd.cpp:2237
RailTypeInfo::compatible_railtypes
RailTypes compatible_railtypes
bitmask to the OTHER railtypes on which an engine of THIS railtype can physically travel
Definition: rail.h:191
TRACK_BIT_CROSS
@ TRACK_BIT_CROSS
X-Y-axis cross.
Definition: track_type.h:43
GetRailDepotDirection
DiagDirection GetRailDepotDirection(Tile t)
Returns the direction the depot is facing to.
Definition: rail_map.h:171
IsInvisibilitySet
bool IsInvisibilitySet(TransparencyOption to)
Check if the invisibility option bit is set and if we aren't in the game menu (there's never transpar...
Definition: transparency.h:59
RoadBuildCost
Money RoadBuildCost(RoadType roadtype)
Returns the cost of building the specified roadtype.
Definition: road.h:252
DrawTileSprites::ground
PalSpriteID ground
Palette and sprite for the ground.
Definition: sprite.h:59
include
bool include(Container &container, typename Container::const_reference &item)
Helper function to append an item to a container if it is not already contained.
Definition: container_func.hpp:24
VehicleSettings::train_acceleration_model
uint8_t train_acceleration_model
realistic acceleration for trains
Definition: settings_type.h:517
FenceOffset::x_offs
int x_offs
Bounding box X offset.
Definition: rail_cmd.cpp:1918
TileDesc::build_date
TimerGameCalendar::Date build_date
Date of construction of tile contents.
Definition: tile_cmd.h:57
RailTypeInfo::name
StringID name
Name of this rail type.
Definition: rail.h:176
IsObjectType
bool IsObjectType(Tile t, ObjectType type)
Check whether the object on a tile is of a specific type.
Definition: object_map.h:25
ROAD_Y
@ ROAD_Y
Full road along the y-axis (north-west + south-east)
Definition: road_type.h:59
Slope
Slope
Enumeration for the slope-type.
Definition: slope_type.h:48
TrackToTrackdir
Trackdir TrackToTrackdir(Track track)
Returns a Trackdir for the given Track.
Definition: track_func.h:279
GameSettings::pf
PathfinderSettings pf
settings for all pathfinders
Definition: settings_type.h:624
TRACK_BIT_VERT
@ TRACK_BIT_VERT
Left and right track.
Definition: track_type.h:45
DIAGDIR_SW
@ DIAGDIR_SW
Southwest.
Definition: direction_type.h:77
CheckForDockingTile
void CheckForDockingTile(TileIndex t)
Mark the supplied tile as a docking tile if it is suitable for docking.
Definition: water_cmd.cpp:184
VS_HIDDEN
@ VS_HIDDEN
Vehicle is not visible.
Definition: vehicle_base.h:33
depot_base.h
landscape_cmd.h
TrainList
std::vector< Train * > TrainList
Helper type for lists/vectors of trains.
Definition: rail_cmd.cpp:44
IsRailDepot
static debug_inline bool IsRailDepot(Tile t)
Is this rail tile a rail depot?
Definition: rail_map.h:95
railtypes.h
RAIL_GROUND_GRASS
@ RAIL_GROUND_GRASS
Grassy.
Definition: rail_map.h:487
TRANSPORT_RAIL
@ TRANSPORT_RAIL
Transport by train.
Definition: transport_type.h:27
CheckOwnership
CommandCost CheckOwnership(Owner owner, TileIndex tile)
Check whether the current owner owns something.
Definition: company_cmd.cpp:361
FOUNDATION_INCLINED_Y
@ FOUNDATION_INCLINED_Y
The tile has an along Y-axis inclined foundation.
Definition: slope_type.h:97
return_cmd_error
#define return_cmd_error(errcode)
Returns from a function with a specific StringID as error.
Definition: command_func.h:38
TrackBitsToTrackdirBits
TrackdirBits TrackBitsToTrackdirBits(TrackBits bits)
Converts TrackBits to TrackdirBits while allowing both directions.
Definition: track_func.h:319
ToTileIndexDiff
TileIndexDiff ToTileIndexDiff(TileIndexDiffC tidc)
Return the offset between two tiles from a TileIndexDiffC struct.
Definition: map_func.h:452
RTO_N
@ RTO_N
Piece of rail in northern corner.
Definition: rail.h:73
EXPENSES_CONSTRUCTION
@ EXPENSES_CONSTRUCTION
Construction costs.
Definition: economy_type.h:173
RailType
RailType
Enumeration for all possible railtypes.
Definition: rail_type.h:27
CommandCost
Common return value for all commands.
Definition: command_type.h:23
GetSnowLine
byte GetSnowLine()
Get the current snow line, either variable or static.
Definition: landscape.cpp:611
TRACK_Y
@ TRACK_Y
Track along the y-axis (north-west to south-east)
Definition: track_type.h:22
IsBridge
bool IsBridge(Tile t)
Checks if this is a bridge, instead of a tunnel.
Definition: bridge_map.h:24
_valid_tracks_on_leveled_foundation
static const TrackBits _valid_tracks_on_leveled_foundation[15]
Valid TrackBits on a specific (non-steep)-slope with leveled foundation.
Definition: rail_cmd.cpp:284
GetRailStationTrack
Track GetRailStationTrack(Tile t)
Get the rail track of a rail station tile.
Definition: station_map.h:422
RemoveFirstTrack
Track RemoveFirstTrack(TrackBits *tracks)
Removes first Track from TrackBits and returns it.
Definition: track_func.h:131
GetRailDepotTrack
Track GetRailDepotTrack(Tile t)
Returns the track of a depot, ignoring direction.
Definition: rail_map.h:182
Train::GetVehicleTrackdir
Trackdir GetVehicleTrackdir() const override
Get the tracks of the train vehicle.
Definition: train_cmd.cpp:4224
RailTypeInfo::rail_ns
CursorID rail_ns
Cursor for building rail in N-S direction.
Definition: rail.h:165
RTSG_GROUND_COMPLETE
@ RTSG_GROUND_COMPLETE
Complete ground images.
Definition: rail.h:62
SIG_ELECTRIC
@ SIG_ELECTRIC
Light signal.
Definition: signal_type.h:17
FOUNDATION_STEEP_BOTH
@ FOUNDATION_STEEP_BOTH
The tile has a steep slope. The lowest corner is raised by a foundation and the upper halftile is lev...
Definition: slope_type.h:101
SLOPE_NE
@ SLOPE_NE
north and east corner are raised
Definition: slope_type.h:58
FenceOffset::y_offs
int y_offs
Bounding box Y offset.
Definition: rail_cmd.cpp:1919
TrackBitsToTrack
Track TrackBitsToTrack(TrackBits tracks)
Converts TrackBits to Track.
Definition: track_func.h:193
DirtyCompanyInfrastructureWindows
void DirtyCompanyInfrastructureWindows(CompanyID company)
Redraw all windows with company infrastructure counts.
Definition: company_gui.cpp:2670
VALID_LEVEL_CROSSING_SLOPES
static const uint32_t VALID_LEVEL_CROSSING_SLOPES
Constant bitset with safe slopes for building a level crossing.
Definition: slope_type.h:86
RTO_CROSSING_XY
@ RTO_CROSSING_XY
Crossing of X and Y rail, with ballast.
Definition: rail.h:81
FenceOffset::height_ref
Corner height_ref
Corner to use height offset from.
Definition: rail_cmd.cpp:1917
RoadNoLevelCrossing
bool RoadNoLevelCrossing(RoadType roadtype)
Test if road disallows level crossings.
Definition: road.h:295
RailTypeInfo::auto_rail
SpriteID auto_rail
button for the autorail construction
Definition: rail.h:157
Vehicle::tile
TileIndex tile
Current tile index.
Definition: vehicle_base.h:260
SIGNAL_STATE_RED
@ SIGNAL_STATE_RED
The signal is red.
Definition: signal_type.h:43
HasReservedTracks
bool HasReservedTracks(TileIndex tile, TrackBits tracks)
Check whether some of tracks is reserved on a tile.
Definition: pbs.h:58
autoslope.h
CmdRemoveSingleSignal
CommandCost CmdRemoveSingleSignal(DoCommandFlag flags, TileIndex tile, Track track)
Remove signals.
Definition: rail_cmd.cpp:1461
MP_OBJECT
@ MP_OBJECT
Contains objects such as transmitters and owned land.
Definition: tile_type.h:58
TransportType
TransportType
Available types of transport.
Definition: transport_type.h:19
GetRailReservationTrackBits
TrackBits GetRailReservationTrackBits(Tile t)
Returns the reserved track bits of the tile.
Definition: rail_map.h:194
rail_cmd.h
HasTrack
bool HasTrack(Tile tile, Track track)
Returns whether the given track is present on the given tile.
Definition: rail_map.h:160
CommandCost::MakeError
void MakeError(StringID message, StringID extra_message=INVALID_STRING_ID)
Makes this CommandCost behave like an error command.
Definition: command_type.h:101
TRACKDIR_BIT_NONE
@ TRACKDIR_BIT_NONE
No track build.
Definition: track_type.h:99
INVALID_OWNER
@ INVALID_OWNER
An invalid owner.
Definition: company_type.h:29
MP_WATER
@ MP_WATER
Water tile.
Definition: tile_type.h:54
ReverseDiagDir
DiagDirection ReverseDiagDir(DiagDirection d)
Returns the reverse direction of the given DiagDirection.
Definition: direction_func.h:118
FOUNDATION_INCLINED_X
@ FOUNDATION_INCLINED_X
The tile has an along X-axis inclined foundation.
Definition: slope_type.h:96
HasSignalOnTrack
bool HasSignalOnTrack(Tile tile, Track track)
Checks for the presence of signals (either way) on the given track on the given rail tile.
Definition: rail_map.h:413
CommandCost::Failed
bool Failed() const
Did this command fail?
Definition: command_type.h:171
RTO_SLOPE_SE
@ RTO_SLOPE_SE
Piece of rail on slope with south-east raised.
Definition: rail.h:78
IsValidCorner
static constexpr bool IsValidCorner(Corner corner)
Rangecheck for Corner enumeration.
Definition: slope_func.h:24
Corner
Corner
Enumeration of tile corners.
Definition: slope_type.h:22
IsNonContinuousFoundation
bool IsNonContinuousFoundation(Foundation f)
Tests if a foundation is a non-continuous foundation, i.e.
Definition: slope_func.h:320
RTSG_FENCES
@ RTSG_FENCES
Fence images.
Definition: rail.h:59
Vehicle::current_order
Order current_order
The current order (+ status, like: loading)
Definition: vehicle_base.h:350
TRACK_UPPER
@ TRACK_UPPER
Track in the upper corner of the tile (north)
Definition: track_type.h:23
RailTypeInfo::build_ns_rail
SpriteID build_ns_rail
button for building single rail in N-S direction
Definition: rail.h:153
DiagDirToDir
Direction DiagDirToDir(DiagDirection dir)
Convert a DiagDirection to a Direction.
Definition: direction_func.h:182
TRACKDIR_BIT_LOWER_W
@ TRACKDIR_BIT_LOWER_W
Track lower, direction west.
Definition: track_type.h:110
OrthogonalTileArea
Represents the covered area of e.g.
Definition: tilearea_type.h:18
TrackdirReachesTrackdirs
TrackdirBits TrackdirReachesTrackdirs(Trackdir trackdir)
Maps a trackdir to the trackdirs that can be reached from it (ie, when entering the next tile.
Definition: track_func.h:584
TUNNELBRIDGE_TRACKBIT_FACTOR
static const uint TUNNELBRIDGE_TRACKBIT_FACTOR
Multiplier for how many regular track bits a tunnel/bridge counts.
Definition: economy_type.h:241
Vehicle::cur_speed
uint16_t cur_speed
current speed
Definition: vehicle_base.h:324
FenceOffset
Offsets for drawing fences.
Definition: rail_cmd.cpp:1916
ReverseTrackdir
Trackdir ReverseTrackdir(Trackdir trackdir)
Maps a trackdir to the reverse trackdir.
Definition: track_func.h:247
_settings_game
GameSettings _settings_game
Game settings of a running game or the scenario editor.
Definition: settings.cpp:55
TRACKDIR_BIT_UPPER_E
@ TRACKDIR_BIT_UPPER_E
Track upper, direction east.
Definition: track_type.h:102
RailTypeInfo::label
RailTypeLabel label
Unique 32 bit rail type identifier.
Definition: rail.h:236
RFO_SLOPE_NE_NW
@ RFO_SLOPE_NE_NW
Slope NE, Track X, Fence NW.
Definition: rail.h:109
TrackdirBitsToTrackBits
TrackBits TrackdirBitsToTrackBits(TrackdirBits bits)
Discards all directional information from a TrackdirBits value.
Definition: track_func.h:308
VS_STOPPED
@ VS_STOPPED
Vehicle is stopped by the player.
Definition: vehicle_base.h:34
GetRailFoundation
Foundation GetRailFoundation(Slope tileh, TrackBits bits)
Checks if a track combination is valid on a specific slope and returns the needed foundation.
Definition: rail_cmd.cpp:312
_local_company
CompanyID _local_company
Company controlled by the human player at this client. Can also be COMPANY_SPECTATOR.
Definition: company_cmd.cpp:50
TRACKDIR_BIT_LEFT_S
@ TRACKDIR_BIT_LEFT_S
Track left, direction south.
Definition: track_type.h:104
TRACK_BIT_X
@ TRACK_BIT_X
X-axis track.
Definition: track_type.h:37
RTSG_CURSORS
@ RTSG_CURSORS
Cursor and toolbar icon images.
Definition: rail.h:50
safeguards.h
lengthof
#define lengthof(array)
Return the length of an fixed size array.
Definition: stdafx.h:303
Train
'Train' is either a loco or a wagon.
Definition: train.h:89
TRACKDIR_BIT_RIGHT_S
@ TRACKDIR_BIT_RIGHT_S
Track right, direction south.
Definition: track_type.h:105
FOUNDATION_INVALID
@ FOUNDATION_INVALID
Used inside "rail_cmd.cpp" to indicate invalid slope/track combination.
Definition: slope_type.h:113
FreeTrainTrackReservation
void FreeTrainTrackReservation(const Train *v)
Free the reserved path in front of a vehicle.
Definition: train_cmd.cpp:2395
SignalAgainstTrackdir
byte SignalAgainstTrackdir(Trackdir trackdir)
Maps a trackdir to the bit that stores its status in the map arrays, in the direction against the tra...
Definition: signal_func.h:32
GetTileSlope
Slope GetTileSlope(TileIndex tile, int *h)
Return the slope of a given tile inside the map.
Definition: tile_map.cpp:59
RemoveFirstTrackdir
Trackdir RemoveFirstTrackdir(TrackdirBits *trackdirs)
Removes first Trackdir from TrackdirBits and returns it.
Definition: track_func.h:156
TRACK_LEFT
@ TRACK_LEFT
Track in the left corner of the tile (west)
Definition: track_type.h:25
IsCompatibleRail
bool IsCompatibleRail(RailType enginetype, RailType tiletype)
Checks if an engine of the given RailType can drive on a tile with a given RailType.
Definition: rail.h:322
SetTrackReservation
void SetTrackReservation(Tile t, TrackBits b)
Sets the reserved track bits of the tile.
Definition: rail_map.h:209
IsSafeWaitingPosition
bool IsSafeWaitingPosition(const Train *v, TileIndex tile, Trackdir trackdir, bool include_line_end, bool forbid_90deg)
Determine whether a certain track on a tile is a safe position to end a path.
Definition: pbs.cpp:380
DrawTileSprites
Ground palette sprite of a tile, together with its sprite layout.
Definition: sprite.h:58
TCX_NORMAL
@ TCX_NORMAL
Nothing special.
Definition: newgrf_commons.h:24
Depot::build_date
TimerGameCalendar::Date build_date
Date of construction.
Definition: depot_base.h:26
RFO_FLAT_LEFT
@ RFO_FLAT_LEFT
Slope FLAT, Track LEFT, Fence E.
Definition: rail.h:105
GetTileOwner
Owner GetTileOwner(Tile tile)
Returns the owner of a tile.
Definition: tile_map.h:178
UpdateAdjacentLevelCrossingTilesOnLevelCrossingRemoval
void UpdateAdjacentLevelCrossingTilesOnLevelCrossingRemoval(TileIndex tile, Axis road_axis)
Update adjacent level crossing tiles in this multi-track crossing, due to removal of a level crossing...
Definition: train_cmd.cpp:1821
INVALID_DIAGDIR
@ INVALID_DIAGDIR
Flag for an invalid DiagDirection.
Definition: direction_type.h:80
RTF_HIDDEN
@ RTF_HIDDEN
Bit number for hiding from selection.
Definition: rail.h:28
DrawSprite
void DrawSprite(SpriteID img, PaletteID pal, int x, int y, const SubSprite *sub, ZoomLevel zoom)
Draw a sprite, not in a viewport.
Definition: gfx.cpp:1003
MP_TUNNELBRIDGE
@ MP_TUNNELBRIDGE
Tunnel entry/exit and bridge heads.
Definition: tile_type.h:57
RailTypeInfo::single_e
SpriteID single_e
single piece of rail in the eastern corner
Definition: rail.h:141
RTSG_GROUND
@ RTSG_GROUND
Main group of ground images.
Definition: rail.h:52
INVALID_TRACKDIR
@ INVALID_TRACKDIR
Flag for an invalid trackdir.
Definition: track_type.h:86
Point
Coordinates of a point in 2D.
Definition: geometry_type.hpp:21
HasRoadWorks
bool HasRoadWorks(Tile t)
Check if a tile has road works.
Definition: road_map.h:513
FOUNDATION_NONE
@ FOUNDATION_NONE
The tile has no foundation, the slope remains unchanged.
Definition: slope_type.h:94
MarkBridgeDirty
void MarkBridgeDirty(TileIndex begin, TileIndex end, DiagDirection direction, uint bridge_height)
Mark bridge tiles dirty.
Definition: tunnelbridge_cmd.cpp:67
GetHalftileFoundationCorner
Corner GetHalftileFoundationCorner(Foundation f)
Returns the halftile corner of a halftile-foundation.
Definition: slope_func.h:333
SLOPE_NS
@ SLOPE_NS
north and south corner are raised
Definition: slope_type.h:60
DiagDirection
DiagDirection
Enumeration for diagonal directions.
Definition: direction_type.h:73
DrawTrackFence_SW
static void DrawTrackFence_SW(const TileInfo *ti, SpriteID base_image, uint num_sprites)
Draw fence at SW border matching the tile slope.
Definition: rail_cmd.cpp:1998
GetRailTileType
static debug_inline RailTileType GetRailTileType(Tile t)
Returns the RailTileType (normal with or without signals, waypoint or depot).
Definition: rail_map.h:36
RailTypeInfo::cursor
struct RailTypeInfo::@25 cursor
Cursors associated with the rail type.
TRACK_BIT_ALL
@ TRACK_BIT_ALL
All possible tracks.
Definition: track_type.h:50
CombineTrackStatus
TrackStatus CombineTrackStatus(TrackdirBits trackdirbits, TrackdirBits red_signals)
Builds a TrackStatus.
Definition: track_func.h:388
GetPresentSignals
uint GetPresentSignals(Tile tile)
Get whether the given signals are present (Along/AgainstTrackDir)
Definition: rail_map.h:393
SIGTYPE_EXIT
@ SIGTYPE_EXIT
presignal block exit
Definition: signal_type.h:26
RailTypeInfo::gui_sprites
struct RailTypeInfo::@24 gui_sprites
struct containing the sprites for the rail GUI.
CommandCost::AddCost
void AddCost(const Money &cost)
Adds the given cost to the cost of the command.
Definition: command_type.h:63
GUISettings::show_track_reservation
bool show_track_reservation
highlight reserved tracks.
Definition: settings_type.h:185
TRACK_BIT_LOWER
@ TRACK_BIT_LOWER
Lower track.
Definition: track_type.h:40
stdafx.h
RailTypeInfo::rail_ew
CursorID rail_ew
Cursor for building rail in E-W direction.
Definition: rail.h:167
DO_FULL_DETAIL
@ DO_FULL_DETAIL
Also draw details of track and roads.
Definition: openttd.h:50
TileTypeProcs
Set of callback functions for performing tile operations of a given tile type.
Definition: tile_cmd.h:158
SetTileOwner
void SetTileOwner(Tile tile, Owner owner)
Sets the owner of a tile.
Definition: tile_map.h:198
DRD_NONE
@ DRD_NONE
None of the directions are disallowed.
Definition: road_type.h:74
SpriteID
uint32_t SpriteID
The number of a sprite, without mapping bits and colourtables.
Definition: gfx_type.h:17
CountBits
constexpr uint CountBits(T value)
Counts the number of set bits in a variable.
Definition: bitmath_func.hpp:243
DC_BANKRUPT
@ DC_BANKRUPT
company bankrupts, skip money check, skip vehicle on tile check in some cases
Definition: command_type.h:377
CheckRailSlope
static CommandCost CheckRailSlope(Slope tileh, TrackBits rail_bits, TrackBits existing, TileIndex tile)
Tests if a track can be build on a tile.
Definition: rail_cmd.cpp:392
DrawTrackFence_NE
static void DrawTrackFence_NE(const TileInfo *ti, SpriteID base_image, uint num_sprites)
Draw fence at NE border matching the tile slope.
Definition: rail_cmd.cpp:1988
RTSG_OVERLAY
@ RTSG_OVERLAY
Images for overlaying track.
Definition: rail.h:51
viewport_func.h
TileLoop_Water
void TileLoop_Water(TileIndex tile)
Let a water tile floods its diagonal adjoining tiles called from tunnelbridge_cmd,...
Definition: water_cmd.cpp:1233
GetSaveSlopeZ
static uint GetSaveSlopeZ(uint x, uint y, Track track)
Get surface height in point (x,y) On tiles with halftile foundations move (x,y) to a safe point wrt.
Definition: rail_cmd.cpp:1859
RailGroundType
RailGroundType
The ground 'under' the rail.
Definition: rail_map.h:485
IsPlainRailTile
static debug_inline bool IsPlainRailTile(Tile t)
Checks whether the tile is a rail tile or rail tile with signals.
Definition: rail_map.h:60
AddSortableSpriteToDraw
void AddSortableSpriteToDraw(SpriteID image, PaletteID pal, int x, int y, int w, int h, int dz, int z, bool transparent, int bb_offset_x, int bb_offset_y, int bb_offset_z, const SubSprite *sub)
Draw a (transparent) sprite at given coordinates with a given bounding box.
Definition: viewport.cpp:673
SLOPE_W
@ SLOPE_W
the west corner of the tile is raised
Definition: slope_type.h:50
RailTypeInfo::single_sloped
SpriteID single_sloped
single piece of rail for slopes
Definition: rail.h:143
RailTypeInfo::snow_offset
SpriteID snow_offset
sprite number difference between a piece of track on a snowy ground and the corresponding one on norm...
Definition: rail.h:185
IsValidTile
bool IsValidTile(Tile tile)
Checks if a tile is valid.
Definition: tile_map.h:161
yapf_cache.h
GetTrackBits
TrackBits GetTrackBits(Tile tile)
Gets the track bits of the given tile.
Definition: rail_map.h:136
RAIL_GROUND_WATER
@ RAIL_GROUND_WATER
Grass with a fence and shore or water on the free halftile.
Definition: rail_map.h:499
Vehicle::direction
Direction direction
facing
Definition: vehicle_base.h:303
RailTypeInfo::max_speed
uint16_t max_speed
Maximum speed for vehicles travelling on this rail type.
Definition: rail.h:231
TileOffsByDiagDir
TileIndexDiff TileOffsByDiagDir(DiagDirection dir)
Convert a DiagDirection to a TileIndexDiff.
Definition: map_func.h:563
FOUNDATION_STEEP_LOWER
@ FOUNDATION_STEEP_LOWER
The tile has a steep slope. The lowest corner is raised by a foundation to allow building railroad on...
Definition: slope_type.h:98
SIGTYPE_BLOCK
@ SIGTYPE_BLOCK
block signal
Definition: signal_type.h:24
object_map.h
RailTypeInfo::powered_railtypes
RailTypes powered_railtypes
bitmask to the OTHER railtypes on which an engine of THIS railtype generates power
Definition: rail.h:188
TRACK_BIT_DEPOT
@ TRACK_BIT_DEPOT
Bitflag for a depot.
Definition: track_type.h:53
RailTypeInfo::single_x
SpriteID single_x
single piece of rail in X direction, without ground
Definition: rail.h:137
TileIndexDiffC
A pair-construct of a TileIndexDiff.
Definition: map_type.h:31
track_land.h
DrawFoundation
void DrawFoundation(TileInfo *ti, Foundation f)
Draw foundation f at tile ti.
Definition: landscape.cpp:427
OBJECT_OWNED_LAND
static const ObjectType OBJECT_OWNED_LAND
Owned land 'flag'.
Definition: object_type.h:19
RAILTYPE_RAIL
@ RAILTYPE_RAIL
Standard non-electric rails.
Definition: rail_type.h:29
TRACK_END
@ TRACK_END
Used for iterations.
Definition: track_type.h:27
MakeRailDepot
void MakeRailDepot(Tile tile, Owner owner, DepotID depot_id, DiagDirection dir, RailType rail_type)
Make a rail depot.
Definition: rail_map.h:552
TRACKDIR_BIT_X_NE
@ TRACKDIR_BIT_X_NE
Track x-axis, direction north-east.
Definition: track_type.h:100
GetFloodingBehaviour
FloodingBehaviour GetFloodingBehaviour(TileIndex tile)
Returns the behaviour of a tile during flooding.
Definition: water_cmd.cpp:1080
TRACK_BIT_HORZ
@ TRACK_BIT_HORZ
Upper and lower track.
Definition: track_type.h:44
MakeDefaultName
void MakeDefaultName(T *obj)
Set the default name for a depot/waypoint.
Definition: town.h:249
RFO_FLAT_X_NW
@ RFO_FLAT_X_NW
Slope FLAT, Track X, Fence NW.
Definition: rail.h:103
RFO_SLOPE_SE_NE
@ RFO_SLOPE_SE_NE
Slope SE, Track Y, Fence NE.
Definition: rail.h:108
IsValidDiagDirection
bool IsValidDiagDirection(DiagDirection d)
Checks if an integer value is a valid DiagDirection.
Definition: direction_func.h:21
_current_company
CompanyID _current_company
Company currently doing an action.
Definition: company_cmd.cpp:51
SIGTYPE_ENTRY
@ SIGTYPE_ENTRY
presignal block entry
Definition: signal_type.h:25
vehicle_func.h
PALETTE_CRASH
static const PaletteID PALETTE_CRASH
Recolour sprite greying of crashed vehicles.
Definition: sprites.h:1602
GetCustomSignalSprite
SpriteID GetCustomSignalSprite(const RailTypeInfo *rti, TileIndex tile, SignalType type, SignalVariant var, SignalState state, bool gui)
Get the sprite to draw for a given signal.
Definition: newgrf_railtype.cpp:121
strings_func.h
MakeRoadCrossing
void MakeRoadCrossing(Tile t, Owner road, Owner tram, Owner rail, Axis roaddir, RailType rat, RoadType road_rt, RoadType tram_rt, uint town)
Make a level crossing.
Definition: road_map.h:660
PALETTE_TO_BARE_LAND
static const PaletteID PALETTE_TO_BARE_LAND
sets colour to bare land stuff for rail, road and crossings
Definition: sprites.h:1590
RAIL_GROUND_FENCE_HORIZ1
@ RAIL_GROUND_FENCE_HORIZ1
Grass with a fence at the southern side.
Definition: rail_map.h:496
EnsureNoTrainOnTrackBits
CommandCost EnsureNoTrainOnTrackBits(TileIndex tile, TrackBits track_bits)
Tests if a vehicle interacts with the specified track bits.
Definition: vehicle.cpp:608
SLOPE_EW
@ SLOPE_EW
east and west corner are raised
Definition: slope_type.h:59
TRACK_BIT_LEFT
@ TRACK_BIT_LEFT
Left track.
Definition: track_type.h:41
RailTypeInfo::depot
CursorID depot
Cursor for building a depot.
Definition: rail.h:170
CmdBuildTrainDepot
CommandCost CmdBuildTrainDepot(DoCommandFlag flags, TileIndex tile, RailType railtype, DiagDirection dir)
Build a train depot.
Definition: rail_cmd.cpp:963
GetCrossingRoadAxis
Axis GetCrossingRoadAxis(Tile t)
Get the road axis of a level crossing.
Definition: road_map.h:325
DrawTrackFence_NW
static void DrawTrackFence_NW(const TileInfo *ti, SpriteID base_image, uint num_sprites)
Draw fence at NW border matching the tile slope.
Definition: rail_cmd.cpp:1968
IsDockingTile
bool IsDockingTile(Tile t)
Checks whether the tile is marked as a dockling tile.
Definition: water_map.h:374
WC_BUILD_VEHICLE
@ WC_BUILD_VEHICLE
Build vehicle; Window numbers:
Definition: window_type.h:383
IsRailDepotTile
static debug_inline bool IsRailDepotTile(Tile t)
Is this tile rail tile and a rail depot?
Definition: rail_map.h:105
Backup::Restore
void Restore()
Restore the variable.
Definition: backup_type.hpp:112
TRACK_BIT_3WAY_NE
@ TRACK_BIT_3WAY_NE
"Arrow" to the north-east
Definition: track_type.h:46
TryPathReserve
bool TryPathReserve(Train *v, bool mark_as_stuck=false, bool first_tile_okay=false)
Try to reserve a path to a safe position.
Definition: train_cmd.cpp:2860
EnsureNoTrainOnTrack
static CommandCost EnsureNoTrainOnTrack(TileIndex tile, Track track)
Tests if a vehicle interacts with the specified track.
Definition: rail_cmd.cpp:229
SpecializedVehicle< Train, Type >::From
static Train * From(Vehicle *v)
Converts a Vehicle to SpecializedVehicle with type checking.
Definition: vehicle_base.h:1211
SLOPE_N
@ SLOPE_N
the north corner of the tile is raised
Definition: slope_type.h:53
IsSlopeWithThreeCornersRaised
bool IsSlopeWithThreeCornersRaised(Slope s)
Tests if a specific slope has exactly three corners raised.
Definition: slope_func.h:195
GetTilePixelSlope
Slope GetTilePixelSlope(TileIndex tile, int *h)
Return the slope of a given tile.
Definition: tile_map.h:280
abs
constexpr T abs(const T a)
Returns the absolute value of (scalar) variable.
Definition: math_func.hpp:23
RailConvertCost
Money RailConvertCost(RailType from, RailType to)
Calculates the cost of rail conversion.
Definition: rail.h:403
TileType
TileType
The different types of tiles.
Definition: tile_type.h:47
GetHighestSlopeCorner
Corner GetHighestSlopeCorner(Slope s)
Returns the highest corner of a slope (one corner raised or a steep slope).
Definition: slope_func.h:126
Map::Size
static debug_inline uint Size()
Get the size of the map.
Definition: map_func.h:288
MakeShore
void MakeShore(Tile t)
Helper function to make a coast tile.
Definition: water_map.h:384
TRACKDIR_BIT_LOWER_E
@ TRACKDIR_BIT_LOWER_E
Track lower, direction east.
Definition: track_type.h:103
RFO_FLAT_UPPER
@ RFO_FLAT_UPPER
Slope FLAT, Track UPPER, Fence S.
Definition: rail.h:106
RAILTYPE_END
@ RAILTYPE_END
Used for iterations.
Definition: rail_type.h:33
GetSingleSignalState
SignalState GetSingleSignalState(Tile t, byte signalbit)
Get the state of a single signal.
Definition: rail_map.h:373
RailTypeInfo::build_tunnel
SpriteID build_tunnel
button for building a tunnel
Definition: rail.h:159
ConstructionSettings::build_on_slopes
bool build_on_slopes
allow building on slopes
Definition: settings_type.h:370
RFO_SLOPE_NE_SE
@ RFO_SLOPE_NE_SE
Slope NE, Track X, Fence SE.
Definition: rail.h:117
TestAutoslopeOnRailTile
static CommandCost TestAutoslopeOnRailTile(TileIndex tile, uint flags, int z_old, Slope tileh_old, int z_new, Slope tileh_new, TrackBits rail_bits)
Tests if autoslope is allowed.
Definition: rail_cmd.cpp:2996
RTO_X
@ RTO_X
Piece of rail in X direction.
Definition: rail.h:71
HasStationRail
bool HasStationRail(Tile t)
Has this station tile a rail? In other words, is this station tile a rail station or rail waypoint?
Definition: station_map.h:135
SLOPE_SW
@ SLOPE_SW
south and west corner are raised
Definition: slope_type.h:56
DrawTrackDetails
static void DrawTrackDetails(const TileInfo *ti, const RailTypeInfo *rti)
Draw track fences.
Definition: rail_cmd.cpp:2010
RailTypeInfo::single_s
SpriteID single_s
single piece of rail in the southern corner
Definition: rail.h:140
HasSignals
bool HasSignals(Tile t)
Checks if a rail tile has signals.
Definition: rail_map.h:72
GetSlopePixelZInCorner
int GetSlopePixelZInCorner(Slope tileh, Corner corner)
Determine the Z height of a corner relative to TileZ.
Definition: landscape.h:53
MarkTileDirtyByTile
void MarkTileDirtyByTile(TileIndex tile, int bridge_level_offset, int tile_height_override)
Mark a tile given by its index dirty for repaint.
Definition: viewport.cpp:2051
AddSideToSignalBuffer
void AddSideToSignalBuffer(TileIndex tile, DiagDirection side, Owner owner)
Add side of tile to signal update buffer.
Definition: signal.cpp:610
RailTypeInfo::build_x_rail
SpriteID build_x_rail
button for building single rail in X direction
Definition: rail.h:154
SetDockingTile
void SetDockingTile(Tile t, bool b)
Set the docking tile state of a tile.
Definition: water_map.h:364
SetRailType
void SetRailType(Tile t, RailType r)
Sets the rail type of the given tile.
Definition: rail_map.h:125
FOUNDATION_LEVELED
@ FOUNDATION_LEVELED
The tile is leveled up to a flat slope.
Definition: slope_type.h:95
RTSG_DEPOT
@ RTSG_DEPOT
Depot images.
Definition: rail.h:58
TRACK_BIT_3WAY_SE
@ TRACK_BIT_3WAY_SE
"Arrow" to the south-east
Definition: track_type.h:47
WC_VEHICLE_DEPOT
@ WC_VEHICLE_DEPOT
Depot view; Window numbers:
Definition: window_type.h:351
MP_STATION
@ MP_STATION
A tile of a station.
Definition: tile_type.h:53
GetRoadOwner
Owner GetRoadOwner(Tile t, RoadTramType rtt)
Get the owner of a specific road type.
Definition: road_map.h:234
RTO_JUNCTION_NSEW
@ RTO_JUNCTION_NSEW
Ballast for full junction.
Definition: rail.h:86
ConstructionSettings::train_signal_side
byte train_signal_side
show signals on left / driving / right side
Definition: settings_type.h:375
FindVehicleOnPos
void FindVehicleOnPos(TileIndex tile, void *data, VehicleFromPosProc *proc)
Find a vehicle from a specific location.
Definition: vehicle.cpp:505
FLOOD_NONE
@ FLOOD_NONE
The tile does not flood neighboured tiles.
Definition: water.h:20
RTO_Y
@ RTO_Y
Piece of rail in Y direction.
Definition: rail.h:72
RAIL_TILE_NORMAL
@ RAIL_TILE_NORMAL
Normal rail tile without signals.
Definition: rail_map.h:24
Pool::PoolItem<&_depot_pool >::CanAllocateItem
static bool CanAllocateItem(size_t n=1)
Helper functions so we can use PoolItem::Function() instead of _poolitem_pool.Function()
Definition: pool_type.hpp:309
HasRailCatenaryDrawn
bool HasRailCatenaryDrawn(RailType rt)
Test if we should draw rail catenary.
Definition: elrail_func.h:30
GetTunnelBridgeTransportType
TransportType GetTunnelBridgeTransportType(Tile t)
Tunnel: Get the transport type of the tunnel (road or rail) Bridge: Get the transport type of the bri...
Definition: tunnelbridge_map.h:39
VehicleSettings::disable_elrails
bool disable_elrails
when true, the elrails are disabled
Definition: settings_type.h:522
DIAGDIR_BEGIN
@ DIAGDIR_BEGIN
Used for iterations.
Definition: direction_type.h:74
RoadType
RoadType
The different roadtypes we support.
Definition: road_type.h:25
SetRailDepotExitDirection
void SetRailDepotExitDirection(Tile tile, DiagDirection dir)
Sets the exit direction of a rail depot.
Definition: rail_map.h:538
GetRoadBits
RoadBits GetRoadBits(Tile t, RoadTramType rtt)
Get the present road bits for a specific road type.
Definition: road_map.h:128
RAIL_GROUND_FENCE_NE
@ RAIL_GROUND_FENCE_NE
Grass with a fence at the NE edge.
Definition: rail_map.h:491
OWNER_DEITY
@ OWNER_DEITY
The object is owned by a superuser / goal script.
Definition: company_type.h:27
IsBridgeAbove
bool IsBridgeAbove(Tile t)
checks if a bridge is set above the ground of this tile
Definition: bridge_map.h:45
TileDesc::str
StringID str
Description of the tile.
Definition: tile_cmd.h:53
RTO_SLOPE_NW
@ RTO_SLOPE_NW
Piece of rail on slope with north-west raised.
Definition: rail.h:80
DC_AUTO
@ DC_AUTO
don't allow building on structures
Definition: command_type.h:372
AddTrackToSignalBuffer
void AddTrackToSignalBuffer(TileIndex tile, Track track, Owner owner)
Add track to signal update buffer.
Definition: signal.cpp:578
DiagDirToDiagTrack
Track DiagDirToDiagTrack(DiagDirection diagdir)
Maps a (4-way) direction to the diagonal track incidating with that diagdir.
Definition: track_func.h:512
RTO_E
@ RTO_E
Piece of rail in eastern corner.
Definition: rail.h:75
container_func.hpp
SpecialRailFoundation
Foundation SpecialRailFoundation(Corner corner)
Returns the special rail foundation for single horizontal/vertical track.
Definition: slope_func.h:403
IsSpecialRailFoundation
bool IsSpecialRailFoundation(Foundation f)
Tests if a foundation is a special rail foundation for single horizontal/vertical track.
Definition: slope_func.h:345
RoadBits
RoadBits
Enumeration for the road parts on a tile.
Definition: road_type.h:52
IsDiagonalTrackdir
bool IsDiagonalTrackdir(Trackdir trackdir)
Checks if a given Trackdir is diagonal.
Definition: track_func.h:631
GetOtherTunnelBridgeEnd
TileIndex GetOtherTunnelBridgeEnd(Tile t)
Determines type of the wormhole and returns its other end.
Definition: tunnelbridge_map.h:78
Vehicle::y_pos
int32_t y_pos
y coordinate.
Definition: vehicle_base.h:301
AXIS_X
@ AXIS_X
The X axis.
Definition: direction_type.h:117
UpdateLevelCrossing
void UpdateLevelCrossing(TileIndex tile, bool sound=true, bool force_bar=false)
Update a level crossing to barred or open (crossing may include multiple adjacent tiles).
Definition: train_cmd.cpp:1772
RailTypeInfo::rail_nwse
CursorID rail_nwse
Cursor for building rail in Y direction.
Definition: rail.h:168
TileIndexDiffC::y
int16_t y
The y value of the coordinate.
Definition: map_type.h:33
RailTypeInfo::introduces_railtypes
RailTypes introduces_railtypes
Bitmask of which other railtypes are introduced when this railtype is introduced.
Definition: rail.h:266
TrackBits
TrackBits
Allow incrementing of Track variables.
Definition: track_type.h:35
CheckTileOwnership
CommandCost CheckTileOwnership(TileIndex tile)
Check whether the current owner owns the stuff on the given tile.
Definition: company_cmd.cpp:379
CommandHelper
Definition: command_func.h:93
TRACKDIR_BIT_Y_SE
@ TRACKDIR_BIT_Y_SE
Track y-axis, direction south-east.
Definition: track_type.h:101
TRACKDIR_BIT_RIGHT_N
@ TRACKDIR_BIT_RIGHT_N
Track right, direction north.
Definition: track_type.h:112
Depot
Definition: depot_base.h:20
RFO_SLOPE_NW_NE
@ RFO_SLOPE_NW_NE
Slope NW, Track Y, Fence NE.
Definition: rail.h:110
IsStationTileBlocked
bool IsStationTileBlocked(Tile t)
Is tile t a blocked tile?
Definition: station_map.h:338
RailTypeInfo::track_ns
SpriteID track_ns
two pieces of rail in North and South corner (East-West direction)
Definition: rail.h:135
ROAD_NONE
@ ROAD_NONE
No road-part is build.
Definition: road_type.h:53
SlopeToSpriteOffset
uint SlopeToSpriteOffset(Slope s)
Returns the Sprite offset for a given Slope.
Definition: slope_func.h:415
GetTileMaxPixelZ
int GetTileMaxPixelZ(TileIndex tile)
Get top height of the tile.
Definition: tile_map.h:304
RailTypeInfo::base_sprites
struct RailTypeInfo::@23 base_sprites
Struct containing the main sprites.
TILE_HEIGHT
static const uint TILE_HEIGHT
Height of a height level in world coordinate AND in pixels in #ZOOM_LVL_BASE.
Definition: tile_type.h:18
OverflowSafeInt< int64_t >
SignalOffsets
SignalOffsets
Enum holding the signal offset in the sprite sheet according to the side it is representing.
Definition: rail_cmd.cpp:51
ConstructionSettings::crossing_with_competitor
bool crossing_with_competitor
allow building of level crossings with competitor roads or rails
Definition: settings_type.h:379
MakeRoadNormal
void MakeRoadNormal(Tile t, RoadBits bits, RoadType road_rt, RoadType tram_rt, TownID town, Owner road, Owner tram)
Make a normal road tile.
Definition: road_map.h:635
DrawRailCatenary
void DrawRailCatenary(const TileInfo *ti)
Draws overhead wires and pylons for electric railways.
Definition: elrail.cpp:568
DrawRailTileSeq
void DrawRailTileSeq(const struct TileInfo *ti, const DrawTileSprites *dts, TransparencyOption to, int32_t total_offset, uint32_t newgrf_offset, PaletteID default_palette)
Draw tile sprite sequence on tile with railroad specifics.
Definition: sprite.h:89
RFO_FLAT_Y_SW
@ RFO_FLAT_Y_SW
Slope FLAT, Track Y, Fence SW.
Definition: rail.h:112
RailTypeInfo::flags
RailTypeFlags flags
Bit mask of rail type flags.
Definition: rail.h:211
DrawTrackFence
static void DrawTrackFence(const TileInfo *ti, SpriteID base_image, uint num_sprites, RailFenceOffset rfo)
Draw a track fence.
Definition: rail_cmd.cpp:1951
RailNoLevelCrossings
bool RailNoLevelCrossings(RailType rt)
Test if a RailType disallows build of level crossings.
Definition: rail.h:345
CmdConvertRail
CommandCost CmdConvertRail(DoCommandFlag flags, TileIndex tile, TileIndex area_start, RailType totype, bool diagonal)
Convert one rail type to the other.
Definition: rail_cmd.cpp:1553
CmdBuildSingleRail
CommandCost CmdBuildSingleRail(DoCommandFlag flags, TileIndex tile, RailType railtype, Track track, bool auto_remove_signals)
Build a single piece of rail.
Definition: rail_cmd.cpp:426
IsSignalPresent
bool IsSignalPresent(Tile t, byte signalbit)
Checks whether the given signals is present.
Definition: rail_map.h:404
TileInfo::x
int x
X position of the tile in unit coordinates.
Definition: tile_cmd.h:44
RAIL_GROUND_FENCE_HORIZ2
@ RAIL_GROUND_FENCE_HORIZ2
Grass with a fence at the northern side.
Definition: rail_map.h:497
TRACK_BIT_Y
@ TRACK_BIT_Y
Y-axis track.
Definition: track_type.h:38
TimerGameCalendar::date
static Date date
Current date in days (day counter).
Definition: timer_game_calendar.h:34
TileInfo::tile
TileIndex tile
Tile index.
Definition: tile_cmd.h:47
Train::CalcNextVehicleOffset
int CalcNextVehicleOffset() const
Calculate the offset from this vehicle's center to the following center taking the vehicle lengths in...
Definition: train.h:173
GameSettings::construction
ConstructionSettings construction
construction of things in-game
Definition: settings_type.h:619
CCF_TRACK
@ CCF_TRACK
Valid changes while vehicle is driving, and possibly changing tracks.
Definition: train.h:48
GameSettings::vehicle
VehicleSettings vehicle
options for vehicles
Definition: settings_type.h:626
Trackdir
Trackdir
Enumeration for tracks and directions.
Definition: track_type.h:67
RFO_FLAT_X_SE
@ RFO_FLAT_X_SE
Slope FLAT, Track X, Fence SE.
Definition: rail.h:111
_valid_tracks_without_foundation
static const TrackBits _valid_tracks_without_foundation[15]
Valid TrackBits on a specific (non-steep)-slope without foundation.
Definition: rail_cmd.cpp:262
RTO_S
@ RTO_S
Piece of rail in southern corner.
Definition: rail.h:74
SlopeWithOneCornerRaised
Slope SlopeWithOneCornerRaised(Corner corner)
Returns the slope with a specific corner raised.
Definition: slope_func.h:99
RFO_FLAT_RIGHT
@ RFO_FLAT_RIGHT
Slope FLAT, Track RIGHT, Fence W.
Definition: rail.h:113
TileDesc::rail_speed
uint16_t rail_speed
Speed limit of rail (bridges and track)
Definition: tile_cmd.h:65
IsTileType
static debug_inline bool IsTileType(Tile tile, TileType type)
Checks if a tile is a given tiletype.
Definition: tile_map.h:150
VEH_TRAIN
@ VEH_TRAIN
Train vehicle type.
Definition: vehicle_type.h:24
Pool::PoolItem<&_company_pool >::IsValidID
static bool IsValidID(size_t index)
Tests whether given index can be used to get valid (non-nullptr) Titem.
Definition: pool_type.hpp:328
BaseVehicle::type
VehicleType type
Type of vehicle.
Definition: vehicle_type.h:51
RAIL_TILE_DEPOT
@ RAIL_TILE_DEPOT
Depot (one entrance)
Definition: rail_map.h:26
TrackdirBits
TrackdirBits
Allow incrementing of Trackdir variables.
Definition: track_type.h:98
TileX
static debug_inline uint TileX(TileIndex tile)
Get the X component of a tile.
Definition: map_func.h:427
SpecializedVehicle::First
T * First() const
Get the first vehicle in the chain.
Definition: vehicle_base.h:1108
ResetRailTypes
void ResetRailTypes()
Reset all rail type information to its default values.
Definition: rail_cmd.cpp:65
HasPowerOnRail
bool HasPowerOnRail(RailType enginetype, RailType tiletype)
Checks if an engine of the given RailType got power on a tile with a given RailType.
Definition: rail.h:335
SetTrackBits
void SetTrackBits(Tile t, TrackBits b)
Sets the track bits of the given tile.
Definition: rail_map.h:147
SLOPE_FLAT
@ SLOPE_FLAT
a flat tile
Definition: slope_type.h:49
Track
Track
These are used to specify a single track.
Definition: track_type.h:19
CompareRailTypes
static bool CompareRailTypes(const RailType &first, const RailType &second)
Compare railtypes based on their sorting order.
Definition: rail_cmd.cpp:122
CmdRemoveSignalTrack
CommandCost CmdRemoveSignalTrack(DoCommandFlag flags, TileIndex tile, TileIndex end_tile, Track track, bool autofill)
Remove signals on a stretch of track.
Definition: rail_cmd.cpp:1527
ApplyFoundationToSlope
uint ApplyFoundationToSlope(Foundation f, Slope *s)
Applies a foundation to a slope.
Definition: landscape.cpp:166
FenceOffset::x_size
int x_size
Bounding box X size.
Definition: rail_cmd.cpp:1920
ShowDepotWindow
void ShowDepotWindow(TileIndex tile, VehicleType type)
Opens a depot window.
Definition: depot_gui.cpp:1141
DIAGDIR_NE
@ DIAGDIR_NE
Northeast, upper right on your monitor.
Definition: direction_type.h:75
VEH_SHIP
@ VEH_SHIP
Ship vehicle type.
Definition: vehicle_type.h:26
Company
Definition: company_base.h:129
IsSlopeWithOneCornerRaised
bool IsSlopeWithOneCornerRaised(Slope s)
Tests if a specific slope has exactly one corner raised.
Definition: slope_func.h:88
TRACK_BIT_3WAY_NW
@ TRACK_BIT_3WAY_NW
"Arrow" to the north-west
Definition: track_type.h:49
IsTileOwner
bool IsTileOwner(Tile tile, Owner owner)
Checks if a tile belongs to the given owner.
Definition: tile_map.h:214
OWNER_WATER
@ OWNER_WATER
The tile/execution is done by "water".
Definition: company_type.h:26
GetTropicZone
TropicZone GetTropicZone(Tile tile)
Get the tropic zone.
Definition: tile_map.h:238
RTO_JUNCTION_SW
@ RTO_JUNCTION_SW
Ballast for junction 'pointing' SW.
Definition: rail.h:82
TileAddByDiagDir
TileIndex TileAddByDiagDir(TileIndex tile, DiagDirection dir)
Adds a DiagDir to a tile.
Definition: map_func.h:604
RFO_FLAT_Y_NE
@ RFO_FLAT_Y_NE
Slope FLAT, Track Y, Fence NE.
Definition: rail.h:104
TRACKDIR_BIT_UPPER_W
@ TRACKDIR_BIT_UPPER_W
Track upper, direction west.
Definition: track_type.h:109
ApplyPixelFoundationToSlope
uint ApplyPixelFoundationToSlope(Foundation f, Slope *s)
Applies a foundation to a slope.
Definition: landscape.h:129
TileIndexDiffC::x
int16_t x
The x value of the coordinate.
Definition: map_type.h:32
CornerToTrackBits
TrackBits CornerToTrackBits(Corner corner)
Returns a single horizontal/vertical trackbit that is in a specific tile corner.
Definition: track_func.h:99
RailTypeInfo::convert_rail
SpriteID convert_rail
button for converting rail
Definition: rail.h:160
FenceOffset::y_size
int y_size
Bounding box Y size.
Definition: rail_cmd.cpp:1921
RAIL_GROUND_ICE_DESERT
@ RAIL_GROUND_ICE_DESERT
Icy or sandy.
Definition: rail_map.h:498
RailTypeInfo::single_y
SpriteID single_y
single piece of rail in Y direction, without ground
Definition: rail.h:138
ToggleBit
constexpr T ToggleBit(T &x, const uint8_t y)
Toggles a bit in a variable.
Definition: bitmath_func.hpp:181
VehicleEnterTileStatus
VehicleEnterTileStatus
The returned bits of VehicleEnterTile.
Definition: tile_cmd.h:21
newgrf_railtype.h
TunnelBridgeIsFree
CommandCost TunnelBridgeIsFree(TileIndex tile, TileIndex endtile, const Vehicle *ignore)
Finds vehicle in tunnel / bridge.
Definition: vehicle.cpp:575
RAIL_GROUND_FENCE_SW
@ RAIL_GROUND_FENCE_SW
Grass with a fence at the SW edge.
Definition: rail_map.h:492
DrawGroundSprite
void DrawGroundSprite(SpriteID image, PaletteID pal, const SubSprite *sub, int extra_offs_x, int extra_offs_y)
Draws a ground sprite for the current tile.
Definition: viewport.cpp:589
INVALID_STRING_ID
static const StringID INVALID_STRING_ID
Constant representing an invalid string (16bit in case it is used in savegames)
Definition: strings_type.h:17
RailBuildCost
Money RailBuildCost(RailType railtype)
Returns the cost of building the specified railtype.
Definition: rail.h:375
ClientSettings::gui
GUISettings gui
settings related to the GUI
Definition: settings_type.h:635
RFO_FLAT_LOWER
@ RFO_FLAT_LOWER
Slope FLAT, Track LOWER, Fence N.
Definition: rail.h:114
GetTrainForReservation
Train * GetTrainForReservation(TileIndex tile, Track track)
Find the train which has reserved a specific path.
Definition: pbs.cpp:330
SignalOnTrack
byte SignalOnTrack(Track track)
Maps a Track to the bits that store the status of the two signals that can be present on the given tr...
Definition: signal_func.h:42
RailTypeInfo::single_w
SpriteID single_w
single piece of rail in the western corner
Definition: rail.h:142
CompanyInfrastructure::rail
uint32_t rail[RAILTYPE_END]
Count of company owned track bits for each rail type.
Definition: company_base.h:35
GetCustomRailSprite
SpriteID GetCustomRailSprite(const RailTypeInfo *rti, TileIndex tile, RailTypeSpriteGroup rtsg, TileContext context, uint *num_results)
Get the sprite to draw for the given tile.
Definition: newgrf_railtype.cpp:96
TRACKDIR_BIT_X_SW
@ TRACKDIR_BIT_X_SW
Track x-axis, direction south-west.
Definition: track_type.h:107
HasSignalOnTrackdir
bool HasSignalOnTrackdir(Tile tile, Trackdir trackdir)
Checks for the presence of signals along the given trackdir on the given rail tile.
Definition: rail_map.h:426
VETSB_ENTERED_WORMHOLE
@ VETSB_ENTERED_WORMHOLE
The vehicle either entered a bridge, tunnel or depot tile (this includes the last tile of the bridge/...
Definition: tile_cmd.h:37
GetTunnelBridgeDirection
DiagDirection GetTunnelBridgeDirection(Tile t)
Get the direction pointing to the other end.
Definition: tunnelbridge_map.h:26
OppositeCorner
Corner OppositeCorner(Corner corner)
Returns the opposite corner.
Definition: slope_func.h:184
INVALID_RAILTYPE
@ INVALID_RAILTYPE
Flag for invalid railtype.
Definition: rail_type.h:34
AutoslopeCheckForEntranceEdge
bool AutoslopeCheckForEntranceEdge(TileIndex tile, int z_new, Slope tileh_new, DiagDirection entrance)
Autoslope check for tiles with an entrance on an edge.
Definition: autoslope.h:31
GetTownIndex
TownID GetTownIndex(Tile t)
Get the index of which town this house/street is attached to.
Definition: town_map.h:23
backup_type.hpp
RAILTYPE_BEGIN
@ RAILTYPE_BEGIN
Used for iterations.
Definition: rail_type.h:28
INVALID_TRACK
@ INVALID_TRACK
Flag for an invalid track.
Definition: track_type.h:28
RTO_JUNCTION_NW
@ RTO_JUNCTION_NW
Ballast for junction 'pointing' NW.
Definition: rail.h:85
RAIL_GROUND_FENCE_NESW
@ RAIL_GROUND_FENCE_NESW
Grass with a fence at the NE and SW edges.
Definition: rail_map.h:493
RAILTYPES_NONE
@ RAILTYPES_NONE
No rail types.
Definition: rail_type.h:45
HasBit
constexpr debug_inline bool HasBit(const T x, const uint8_t y)
Checks if a bit in a value is set.
Definition: bitmath_func.hpp:103