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00012 #include "stdafx.h"
00013 #include "gui.h"
00014 #include "articulated_vehicles.h"
00015 #include "command_func.h"
00016 #include "pathfinder/npf/npf_func.h"
00017 #include "pathfinder/yapf/yapf.hpp"
00018 #include "pathfinder/follow_track.hpp"
00019 #include "openttd.h"
00020 #include "news_func.h"
00021 #include "company_func.h"
00022 #include "vehicle_gui.h"
00023 #include "newgrf_engine.h"
00024 #include "newgrf_sound.h"
00025 #include "newgrf_text.h"
00026 #include "group.h"
00027 #include "table/sprites.h"
00028 #include "strings_func.h"
00029 #include "functions.h"
00030 #include "window_func.h"
00031 #include "vehicle_func.h"
00032 #include "sound_func.h"
00033 #include "autoreplace_gui.h"
00034 #include "gfx_func.h"
00035 #include "ai/ai.hpp"
00036 #include "newgrf_station.h"
00037 #include "effectvehicle_func.h"
00038 #include "gamelog.h"
00039 #include "network/network.h"
00040 #include "spritecache.h"
00041 #include "infrastructure_func.h"
00042
00043 #include "table/strings.h"
00044 #include "table/train_cmd.h"
00045
00046 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck);
00047 static bool TrainCheckIfLineEnds(Train *v);
00048 static void TrainController(Train *v, Vehicle *nomove);
00049 static TileIndex TrainApproachingCrossingTile(const Train *v);
00050 static void CheckIfTrainNeedsService(Train *v);
00051 static void CheckNextTrainTile(Train *v);
00052
00053 static const byte _vehicle_initial_x_fract[4] = {10, 8, 4, 8};
00054 static const byte _vehicle_initial_y_fract[4] = { 8, 4, 8, 10};
00055
00056
00064 static inline DiagDirection TrainExitDir(Direction direction, TrackBits track)
00065 {
00066 static const TrackBits state_dir_table[DIAGDIR_END] = { TRACK_BIT_RIGHT, TRACK_BIT_LOWER, TRACK_BIT_LEFT, TRACK_BIT_UPPER };
00067
00068 DiagDirection diagdir = DirToDiagDir(direction);
00069
00070
00071 if (!HasBit(direction, 0) && track != state_dir_table[diagdir]) {
00072 diagdir = ChangeDiagDir(diagdir, DIAGDIRDIFF_90LEFT);
00073 }
00074
00075 return diagdir;
00076 }
00077
00078
00083 byte FreightWagonMult(CargoID cargo)
00084 {
00085 if (!CargoSpec::Get(cargo)->is_freight) return 1;
00086 return _settings_game.vehicle.freight_trains;
00087 }
00088
00089
00094 void TrainPowerChanged(Train *v)
00095 {
00096 uint32 total_power = 0;
00097 uint32 max_te = 0;
00098
00099 for (const Train *u = v; u != NULL; u = u->Next()) {
00100 RailType railtype = GetRailType(u->tile);
00101
00102
00103 if (!u->IsArticulatedPart()) {
00104 bool engine_has_power = HasPowerOnRail(u->railtype, railtype);
00105
00106 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00107
00108 if (engine_has_power) {
00109 uint16 power = GetVehicleProperty(u, PROP_TRAIN_POWER, rvi_u->power);
00110 if (power != 0) {
00111
00112 if (u->IsMultiheaded()) power /= 2;
00113
00114 total_power += power;
00115
00116 max_te += (u->tcache.cached_veh_weight * 10000 * GetVehicleProperty(u, PROP_TRAIN_TRACTIVE_EFFORT, rvi_u->tractive_effort)) / 256;
00117 }
00118 }
00119 }
00120
00121 if (HasBit(u->flags, VRF_POWEREDWAGON) && HasPowerOnRail(v->railtype, railtype)) {
00122 total_power += RailVehInfo(u->tcache.first_engine)->pow_wag_power;
00123 }
00124 }
00125
00126 if (v->tcache.cached_power != total_power || v->tcache.cached_max_te != max_te) {
00127
00128 if (total_power == 0) v->vehstatus |= VS_STOPPED;
00129
00130 v->tcache.cached_power = total_power;
00131 v->tcache.cached_max_te = max_te;
00132 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
00133 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
00134 }
00135 }
00136
00137
00143 static void TrainCargoChanged(Train *v)
00144 {
00145 uint32 weight = 0;
00146
00147 for (Train *u = v; u != NULL; u = u->Next()) {
00148 uint32 vweight = CargoSpec::Get(u->cargo_type)->weight * u->cargo.Count() * FreightWagonMult(u->cargo_type) / 16;
00149
00150
00151 if (!u->IsArticulatedPart()) {
00152
00153 vweight += GetVehicleProperty(u, PROP_TRAIN_WEIGHT, RailVehInfo(u->engine_type)->weight);
00154 }
00155
00156
00157 if (HasBit(u->flags, VRF_POWEREDWAGON)) {
00158 vweight += RailVehInfo(u->tcache.first_engine)->pow_wag_weight;
00159 }
00160
00161
00162 weight += vweight;
00163
00164
00165 u->tcache.cached_veh_weight = vweight;
00166 }
00167
00168
00169 v->tcache.cached_weight = weight;
00170
00171
00172 TrainPowerChanged(v);
00173 }
00174
00175
00180 static void RailVehicleLengthChanged(const Train *u)
00181 {
00182
00183 const Engine *engine = Engine::Get(u->engine_type);
00184 uint32 grfid = engine->grffile->grfid;
00185 GRFConfig *grfconfig = GetGRFConfig(grfid);
00186 if (GamelogGRFBugReverse(grfid, engine->internal_id) || !HasBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH)) {
00187 ShowNewGrfVehicleError(u->engine_type, STR_NEWGRF_BROKEN, STR_NEWGRF_BROKEN_VEHICLE_LENGTH, GBUG_VEH_LENGTH, true);
00188 }
00189 }
00190
00192 void CheckTrainsLengths()
00193 {
00194 const Train *v;
00195
00196 FOR_ALL_TRAINS(v) {
00197 if (v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00198 for (const Train *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00199 if (u->track != TRACK_BIT_DEPOT) {
00200 if ((w->track != TRACK_BIT_DEPOT &&
00201 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->tcache.cached_veh_length) ||
00202 (w->track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00203 SetDParam(0, v->index);
00204 SetDParam(1, v->owner);
00205 ShowErrorMessage(STR_BROKEN_VEHICLE_LENGTH, INVALID_STRING_ID, 0, 0, true);
00206
00207 if (!_networking) DoCommandP(0, PM_PAUSED_ERROR, 1, CMD_PAUSE);
00208 }
00209 }
00210 }
00211 }
00212 }
00213 }
00214
00222 void TrainConsistChanged(Train *v, bool same_length)
00223 {
00224 uint16 max_speed = UINT16_MAX;
00225
00226 assert(v->IsFrontEngine() || v->IsFreeWagon());
00227
00228 const RailVehicleInfo *rvi_v = RailVehInfo(v->engine_type);
00229 EngineID first_engine = v->IsFrontEngine() ? v->engine_type : INVALID_ENGINE;
00230 v->tcache.cached_total_length = 0;
00231 v->compatible_railtypes = RAILTYPES_NONE;
00232
00233 bool train_can_tilt = true;
00234
00235 for (Train *u = v; u != NULL; u = u->Next()) {
00236 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00237
00238
00239 assert(u->First() == v);
00240
00241
00242 u->tcache.first_engine = v == u ? INVALID_ENGINE : first_engine;
00243 u->railtype = rvi_u->railtype;
00244
00245 if (u->IsEngine()) first_engine = u->engine_type;
00246
00247
00248 u->tcache.user_def_data = rvi_u->user_def_data;
00249 v->InvalidateNewGRFCache();
00250 u->InvalidateNewGRFCache();
00251 }
00252
00253 for (Train *u = v; u != NULL; u = u->Next()) {
00254
00255 u->tcache.user_def_data = GetVehicleProperty(u, PROP_TRAIN_USER_DATA, u->tcache.user_def_data);
00256 v->InvalidateNewGRFCache();
00257 u->InvalidateNewGRFCache();
00258 }
00259
00260 for (Train *u = v; u != NULL; u = u->Next()) {
00261 const Engine *e_u = Engine::Get(u->engine_type);
00262 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00263
00264 if (!HasBit(e_u->info.misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00265
00266
00267 u->tcache.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->tcache.first_engine);
00268
00269
00270 u->colourmap = PAL_NONE;
00271
00272 if (rvi_u->visual_effect != 0) {
00273 u->tcache.cached_vis_effect = rvi_u->visual_effect;
00274 } else {
00275 if (u->IsWagon() || u->IsArticulatedPart()) {
00276
00277 u->tcache.cached_vis_effect = 0x40;
00278 } else if (rvi_u->engclass == 0) {
00279
00280 u->tcache.cached_vis_effect = 4;
00281 } else {
00282
00283 u->tcache.cached_vis_effect = 8;
00284 }
00285 }
00286
00287
00288 if (HasBit(e_u->info.callback_mask, CBM_TRAIN_WAGON_POWER)) {
00289 uint16 callback = GetVehicleCallback(CBID_TRAIN_WAGON_POWER, 0, 0, u->engine_type, u);
00290
00291 if (callback != CALLBACK_FAILED) u->tcache.cached_vis_effect = GB(callback, 0, 8);
00292 }
00293
00294 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00295 UsesWagonOverride(u) && !HasBit(u->tcache.cached_vis_effect, 7)) {
00296
00297 SetBit(u->flags, VRF_POWEREDWAGON);
00298 } else {
00299 ClrBit(u->flags, VRF_POWEREDWAGON);
00300 }
00301
00302 if (!u->IsArticulatedPart()) {
00303
00304
00305 if (rvi_u->power > 0) {
00306 v->compatible_railtypes |= GetRailTypeInfo(u->railtype)->powered_railtypes;
00307 }
00308
00309
00310
00311 if (HasBit(u->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00312 u->railtype = RAILTYPE_RAIL;
00313 u->compatible_railtypes |= RAILTYPES_RAIL;
00314 }
00315
00316
00317 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00318 uint16 speed = GetVehicleProperty(u, PROP_TRAIN_SPEED, rvi_u->max_speed);
00319 if (speed != 0) max_speed = min(speed, max_speed);
00320 }
00321 }
00322
00323 u->cargo_cap = GetVehicleCapacity(u);
00324
00325
00326 uint16 veh_len = CALLBACK_FAILED;
00327 if (HasBit(e_u->info.callback_mask, CBM_VEHICLE_LENGTH)) {
00328 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00329 }
00330 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00331 veh_len = 8 - Clamp(veh_len, 0, 7);
00332
00333
00334 if (same_length && veh_len != u->tcache.cached_veh_length) RailVehicleLengthChanged(u);
00335
00336
00337 if (!same_length) u->tcache.cached_veh_length = veh_len;
00338
00339 v->tcache.cached_total_length += u->tcache.cached_veh_length;
00340 v->InvalidateNewGRFCache();
00341 u->InvalidateNewGRFCache();
00342 }
00343
00344
00345 v->tcache.cached_max_speed = max_speed;
00346 v->tcache.cached_tilt = train_can_tilt;
00347 v->tcache.cached_max_curve_speed = GetTrainCurveSpeedLimit(v);
00348
00349
00350 TrainCargoChanged(v);
00351
00352 if (v->IsFrontEngine()) {
00353 UpdateTrainAcceleration(v);
00354 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
00355 }
00356 }
00357
00358 enum AccelType {
00359 AM_ACCEL,
00360 AM_BRAKE
00361 };
00362
00373 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length)
00374 {
00375 const Station *st = Station::Get(station_id);
00376 *station_ahead = st->GetPlatformLength(tile, DirToDiagDir(v->direction)) * TILE_SIZE;
00377 *station_length = st->GetPlatformLength(tile) * TILE_SIZE;
00378
00379
00380
00381 OrderStopLocation osl = OSL_PLATFORM_MIDDLE;
00382 if (v->tcache.cached_total_length >= *station_length) {
00383
00384 osl = OSL_PLATFORM_FAR_END;
00385 } else if (v->current_order.IsType(OT_GOTO_STATION) && v->current_order.GetDestination() == station_id) {
00386 osl = v->current_order.GetStopLocation();
00387 }
00388
00389
00390 int stop;
00391 switch (osl) {
00392 default: NOT_REACHED();
00393
00394 case OSL_PLATFORM_NEAR_END:
00395 stop = v->tcache.cached_total_length;
00396 break;
00397
00398 case OSL_PLATFORM_MIDDLE:
00399 stop = *station_length - (*station_length - v->tcache.cached_total_length) / 2;
00400 break;
00401
00402 case OSL_PLATFORM_FAR_END:
00403 stop = *station_length;
00404 break;
00405 }
00406
00407
00408
00409 return stop - (v->tcache.cached_veh_length + 1) / 2;
00410 }
00411
00412
00418 int GetTrainCurveSpeedLimit(Train *v)
00419 {
00420 static const int absolute_max_speed = UINT16_MAX;
00421 int max_speed = absolute_max_speed;
00422
00423 if (_settings_game.vehicle.train_acceleration_model == TAM_ORIGINAL) return max_speed;
00424
00425 int curvecount[2] = {0, 0};
00426
00427
00428 int numcurve = 0;
00429 int sum = 0;
00430 int pos = 0;
00431 int lastpos = -1;
00432 for (const Vehicle *u = v; u->Next() != NULL; u = u->Next(), pos++) {
00433 Direction this_dir = u->direction;
00434 Direction next_dir = u->Next()->direction;
00435
00436 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00437 if (dirdiff == DIRDIFF_SAME) continue;
00438
00439 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00440 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00441 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00442 if (lastpos != -1) {
00443 numcurve++;
00444 sum += pos - lastpos;
00445 if (pos - lastpos == 1) {
00446 max_speed = 88;
00447 }
00448 }
00449 lastpos = pos;
00450 }
00451
00452
00453 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00454 max_speed = 61;
00455 }
00456 }
00457
00458 if (numcurve > 0 && max_speed > 88) {
00459 if (curvecount[0] == 1 && curvecount[1] == 1) {
00460 max_speed = absolute_max_speed;
00461 } else {
00462 sum /= numcurve;
00463 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00464 }
00465 }
00466
00467 if (max_speed != absolute_max_speed) {
00468
00469 const RailtypeInfo *rti = GetRailTypeInfo(v->railtype);
00470 max_speed += (max_speed / 2) * rti->curve_speed;
00471
00472 if (v->tcache.cached_tilt) {
00473
00474 max_speed += max_speed / 5;
00475 }
00476 }
00477
00478 return max_speed;
00479 }
00480
00482 static int GetTrainAcceleration(Train *v, bool mode)
00483 {
00484 int max_speed = v->tcache.cached_max_curve_speed;
00485 assert(max_speed == GetTrainCurveSpeedLimit(v));
00486 int speed = v->cur_speed * 10 / 16;
00487
00488 if (IsRailStationTile(v->tile) && v->IsFrontEngine()) {
00489 StationID sid = GetStationIndex(v->tile);
00490 if (v->current_order.ShouldStopAtStation(v, sid)) {
00491 int station_ahead;
00492 int station_length;
00493 int stop_at = GetTrainStopLocation(sid, v->tile, v, &station_ahead, &station_length);
00494
00495
00496
00497 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00498
00499 if (distance_to_go > 0) {
00500 int st_max_speed = 120;
00501
00502 int delta_v = v->cur_speed / (distance_to_go + 1);
00503 if (v->max_speed > (v->cur_speed - delta_v)) {
00504 st_max_speed = v->cur_speed - (delta_v / 10);
00505 }
00506
00507 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00508 max_speed = min(max_speed, st_max_speed);
00509 }
00510 }
00511 }
00512
00513 int mass = v->tcache.cached_weight;
00514 int power = v->tcache.cached_power * 746;
00515 max_speed = min(max_speed, v->tcache.cached_max_speed);
00516
00517 int num = 0;
00518 int incl = 0;
00519 int drag_coeff = 20;
00520 for (const Train *u = v; u != NULL; u = u->Next()) {
00521 num++;
00522 drag_coeff += 3;
00523
00524 if (u->track == TRACK_BIT_DEPOT) max_speed = min(max_speed, 61);
00525
00526 if (HasBit(u->flags, VRF_GOINGUP)) {
00527 incl += u->tcache.cached_veh_weight * 60;
00528 } else if (HasBit(u->flags, VRF_GOINGDOWN)) {
00529 incl -= u->tcache.cached_veh_weight * 60;
00530 }
00531 }
00532
00533 v->max_speed = max_speed;
00534
00535 const int area = 120;
00536 const int friction = 35;
00537 int resistance;
00538 if (v->railtype != RAILTYPE_MAGLEV) {
00539 resistance = 13 * mass / 10;
00540 resistance += 60 * num;
00541 resistance += friction * mass * speed / 1000;
00542 resistance += (area * drag_coeff * speed * speed) / 10000;
00543 } else {
00544 resistance = (area * (drag_coeff / 2) * speed * speed) / 10000;
00545 }
00546 resistance += incl;
00547 resistance *= 4;
00548
00549 const int max_te = v->tcache.cached_max_te;
00550 int force;
00551 if (speed > 0) {
00552 switch (v->railtype) {
00553 case RAILTYPE_RAIL:
00554 case RAILTYPE_ELECTRIC:
00555 case RAILTYPE_MONO:
00556 force = power / speed;
00557 force *= 22;
00558 force /= 10;
00559 if (mode == AM_ACCEL && force > max_te) force = max_te;
00560 break;
00561
00562 default: NOT_REACHED();
00563 case RAILTYPE_MAGLEV:
00564 force = power / 25;
00565 break;
00566 }
00567 } else {
00568
00569 force = (mode == AM_ACCEL && v->railtype != RAILTYPE_MAGLEV) ? min(max_te, power) : power;
00570 force = max(force, (mass * 8) + resistance);
00571 }
00572
00573 if (mode == AM_ACCEL) {
00574 return (force - resistance) / (mass * 2);
00575 } else {
00576 return min(-force - resistance, -10000) / mass;
00577 }
00578 }
00579
00580 void UpdateTrainAcceleration(Train *v)
00581 {
00582 assert(v->IsFrontEngine());
00583
00584 v->max_speed = v->tcache.cached_max_speed;
00585
00586 uint power = v->tcache.cached_power;
00587 uint weight = v->tcache.cached_weight;
00588 assert(weight != 0);
00589 v->acceleration = Clamp(power / weight * 4, 1, 255);
00590 }
00591
00597 int Train::GetDisplayImageWidth(Point *offset) const
00598 {
00599 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00600 int vehicle_pitch = 0;
00601
00602 const Engine *e = Engine::Get(this->engine_type);
00603 if (e->grffile != NULL && is_custom_sprite(e->u.rail.image_index)) {
00604 reference_width = e->grffile->traininfo_vehicle_width;
00605 vehicle_pitch = e->grffile->traininfo_vehicle_pitch;
00606 }
00607
00608 if (offset != NULL) {
00609 offset->x = reference_width / 2;
00610 offset->y = vehicle_pitch;
00611 }
00612 return this->tcache.cached_veh_length * reference_width / 8;
00613 }
00614
00615 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00616 {
00617 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00618 }
00619
00620 SpriteID Train::GetImage(Direction direction) const
00621 {
00622 uint8 spritenum = this->spritenum;
00623 SpriteID sprite;
00624
00625 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00626
00627 if (is_custom_sprite(spritenum)) {
00628 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00629 if (sprite != 0) return sprite;
00630
00631 spritenum = Engine::Get(this->engine_type)->original_image_index;
00632 }
00633
00634 sprite = GetDefaultTrainSprite(spritenum, direction);
00635
00636 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00637
00638 return sprite;
00639 }
00640
00641 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00642 {
00643 const Engine *e = Engine::Get(engine);
00644 Direction dir = rear_head ? DIR_E : DIR_W;
00645 uint8 spritenum = e->u.rail.image_index;
00646
00647 if (is_custom_sprite(spritenum)) {
00648 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00649 if (sprite != 0) {
00650 if (e->grffile != NULL) {
00651 y += e->grffile->traininfo_vehicle_pitch;
00652 }
00653 return sprite;
00654 }
00655
00656 spritenum = Engine::Get(engine)->original_image_index;
00657 }
00658
00659 if (rear_head) spritenum++;
00660
00661 return GetDefaultTrainSprite(spritenum, DIR_W);
00662 }
00663
00664 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, SpriteID pal)
00665 {
00666 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00667 int yf = y;
00668 int yr = y;
00669
00670 SpriteID spritef = GetRailIcon(engine, false, yf);
00671 SpriteID spriter = GetRailIcon(engine, true, yr);
00672 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00673 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00674
00675 preferred_x = Clamp(preferred_x, left - real_spritef->x_offs + 14, right - real_spriter->width - real_spriter->x_offs - 15);
00676
00677 DrawSprite(spritef, pal, preferred_x - 14, yf);
00678 DrawSprite(spriter, pal, preferred_x + 15, yr);
00679 } else {
00680 SpriteID sprite = GetRailIcon(engine, false, y);
00681 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00682 preferred_x = Clamp(preferred_x, left - real_sprite->x_offs, right - real_sprite->width - real_sprite->x_offs);
00683 DrawSprite(sprite, pal, preferred_x, y);
00684 }
00685 }
00686
00687 static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, DoCommandFlag flags)
00688 {
00689 const Engine *e = Engine::Get(engine);
00690 const RailVehicleInfo *rvi = &e->u.rail;
00691 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00692
00693
00694 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00695
00696 if (flags & DC_QUERY_COST) return value;
00697
00698
00699 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00700
00701 uint num_vehicles = 1 + CountArticulatedParts(engine, false);
00702
00703
00704 if (!Vehicle::CanAllocateItem(num_vehicles)) {
00705 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00706 }
00707
00708 if (flags & DC_EXEC) {
00709 Train *v = new Train();
00710 v->spritenum = rvi->image_index;
00711
00712 v->engine_type = engine;
00713 v->tcache.first_engine = INVALID_ENGINE;
00714
00715 DiagDirection dir = GetRailDepotDirection(tile);
00716
00717 v->direction = DiagDirToDir(dir);
00718 v->tile = tile;
00719
00720 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00721 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00722
00723 v->x_pos = x;
00724 v->y_pos = y;
00725 v->z_pos = GetSlopeZ(x, y);
00726 v->owner = _current_company;
00727 v->track = TRACK_BIT_DEPOT;
00728 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00729
00730
00731 v->SetWagon();
00732
00733 v->SetFreeWagon();
00734 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00735
00736 v->cargo_type = e->GetDefaultCargoType();
00737
00738 v->cargo_cap = rvi->capacity;
00739 v->value = value.GetCost();
00740
00741
00742 v->railtype = rvi->railtype;
00743
00744 v->build_year = _cur_year;
00745 v->cur_image = SPR_IMG_QUERY;
00746 v->random_bits = VehicleRandomBits();
00747
00748 v->group_id = DEFAULT_GROUP;
00749
00750 AddArticulatedParts(v);
00751
00752 _new_vehicle_id = v->index;
00753
00754 VehicleMove(v, false);
00755 TrainConsistChanged(v->First(), false);
00756 UpdateTrainGroupID(v->First());
00757
00758 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
00759 if (IsLocalCompany()) {
00760 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00761 }
00762 Company::Get(_current_company)->num_engines[engine]++;
00763
00764 CheckConsistencyOfArticulatedVehicle(v);
00765
00766
00767 Train *w;
00768 FOR_ALL_TRAINS(w) {
00769 if (w->tile == tile &&
00770 w->IsFreeWagon() &&
00771 w->engine_type == engine &&
00772 w->First() != v &&
00773 !(w->vehstatus & VS_CRASHED)) {
00774 DoCommand(0, v->index | (w->Last()->index << 16), 1, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00775 break;
00776 }
00777 }
00778 }
00779
00780 return value;
00781 }
00782
00784 static void NormalizeTrainVehInDepot(const Train *u)
00785 {
00786 const Train *v;
00787 FOR_ALL_TRAINS(v) {
00788 if (v->IsFreeWagon() && v->tile == u->tile &&
00789 v->track == TRACK_BIT_DEPOT) {
00790 if (CmdFailed(DoCommand(0, v->index | (u->index << 16), 1, DC_EXEC,
00791 CMD_MOVE_RAIL_VEHICLE)))
00792 break;
00793 }
00794 }
00795 }
00796
00797 static void AddRearEngineToMultiheadedTrain(Train *v)
00798 {
00799 Train *u = new Train();
00800 v->value >>= 1;
00801 u->value = v->value;
00802 u->direction = v->direction;
00803 u->owner = v->owner;
00804 u->tile = v->tile;
00805 u->x_pos = v->x_pos;
00806 u->y_pos = v->y_pos;
00807 u->z_pos = v->z_pos;
00808 u->track = TRACK_BIT_DEPOT;
00809 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00810
00811 u->spritenum = v->spritenum + 1;
00812 u->cargo_type = v->cargo_type;
00813 u->cargo_subtype = v->cargo_subtype;
00814 u->cargo_cap = v->cargo_cap;
00815 u->railtype = v->railtype;
00816 u->engine_type = v->engine_type;
00817 u->build_year = v->build_year;
00818 u->cur_image = SPR_IMG_QUERY;
00819 u->random_bits = VehicleRandomBits();
00820 v->SetMultiheaded();
00821 u->SetMultiheaded();
00822 v->SetNext(u);
00823 VehicleMove(u, false);
00824
00825
00826 v->other_multiheaded_part = u;
00827 u->other_multiheaded_part = v;
00828 }
00829
00838 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00839 {
00840
00841 if (!IsEngineBuildable(p1, VEH_TRAIN, _current_company)) return_cmd_error(STR_ERROR_RAIL_VEHICLE_NOT_AVAILABLE);
00842
00843 const Engine *e = Engine::Get(p1);
00844 const RailVehicleInfo *rvi = &e->u.rail;
00845 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00846
00847
00848 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00849
00850 if (flags & DC_QUERY_COST) return value;
00851
00852
00853
00854 if (!IsRailDepotTile(tile)) return CMD_ERROR;
00855 if (!CheckInfraUsageAllowed(GetTileOwner(tile), VEH_TRAIN)) return CMD_ERROR;
00856
00857 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(p1, tile, flags);
00858
00859 uint num_vehicles =
00860 (rvi->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1) +
00861 CountArticulatedParts(p1, false);
00862
00863
00864
00865 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00866
00867
00868 if (!Vehicle::CanAllocateItem(num_vehicles)) {
00869 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00870 }
00871
00872 UnitID unit_num = (flags & DC_AUTOREPLACE) ? 0 : GetFreeUnitNumber(VEH_TRAIN);
00873 if (unit_num > _settings_game.vehicle.max_trains) {
00874 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00875 }
00876
00877 if (flags & DC_EXEC) {
00878 DiagDirection dir = GetRailDepotDirection(tile);
00879 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00880 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00881
00882 Train *v = new Train();
00883 v->unitnumber = unit_num;
00884 v->direction = DiagDirToDir(dir);
00885 v->tile = tile;
00886 v->owner = _current_company;
00887 v->x_pos = x;
00888 v->y_pos = y;
00889 v->z_pos = GetSlopeZ(x, y);
00890
00891 v->track = TRACK_BIT_DEPOT;
00892 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00893 v->spritenum = rvi->image_index;
00894 v->cargo_type = e->GetDefaultCargoType();
00895
00896 v->cargo_cap = rvi->capacity;
00897 v->max_speed = rvi->max_speed;
00898 v->value = value.GetCost();
00899 v->last_station_visited = INVALID_STATION;
00900
00901
00902 v->engine_type = p1;
00903 v->tcache.first_engine = INVALID_ENGINE;
00904
00905 v->reliability = e->reliability;
00906 v->reliability_spd_dec = e->reliability_spd_dec;
00907 v->max_age = e->GetLifeLengthInDays();
00908
00909 v->name = NULL;
00910 v->railtype = rvi->railtype;
00911 _new_vehicle_id = v->index;
00912
00913 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00914 v->date_of_last_service = _date;
00915 v->build_year = _cur_year;
00916 v->cur_image = SPR_IMG_QUERY;
00917 v->random_bits = VehicleRandomBits();
00918
00919
00920 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00921
00922 v->group_id = DEFAULT_GROUP;
00923
00924
00925 v->SetFrontEngine();
00926 v->SetEngine();
00927
00928 VehicleMove(v, false);
00929
00930 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00931 AddRearEngineToMultiheadedTrain(v);
00932 } else {
00933 AddArticulatedParts(v);
00934 }
00935
00936 TrainConsistChanged(v, false);
00937 UpdateTrainGroupID(v);
00938
00939 if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) {
00940 NormalizeTrainVehInDepot(v);
00941 }
00942
00943 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00944 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
00945 SetWindowDirty(WC_COMPANY, v->owner);
00946 if (IsLocalCompany()) {
00947 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00948 }
00949
00950 Company::Get(_current_company)->num_engines[p1]++;
00951
00952 CheckConsistencyOfArticulatedVehicle(v);
00953 }
00954
00955 return value;
00956 }
00957
00958
00959 bool Train::IsInDepot() const
00960 {
00961
00962 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00963
00964
00965 for (const Train *v = this; v != NULL; v = v->Next()) {
00966 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00967 }
00968
00969 return true;
00970 }
00971
00972 bool Train::IsStoppedInDepot() const
00973 {
00974
00975 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00976 return this->IsInDepot();
00977 }
00978
00979 static Train *FindGoodVehiclePos(const Train *src)
00980 {
00981 EngineID eng = src->engine_type;
00982 TileIndex tile = src->tile;
00983
00984 Train *dst;
00985 FOR_ALL_TRAINS(dst) {
00986 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00987
00988 Train *t = dst;
00989 while (t->engine_type == eng) {
00990 t = t->Next();
00991 if (t == NULL) return dst;
00992 }
00993 }
00994 }
00995
00996 return NULL;
00997 }
00998
01000 typedef SmallVector<Train *, 16> TrainList;
01001
01007 static void MakeTrainBackup(TrainList &list, Train *t)
01008 {
01009 for (; t != NULL; t = t->Next()) *list.Append() = t;
01010 }
01011
01016 static void RestoreTrainBackup(TrainList &list)
01017 {
01018
01019 if (list.Length() == 0) return;
01020
01021 Train *prev = NULL;
01022
01023 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
01024 Train *t = *iter;
01025 if (prev != NULL) {
01026 prev->SetNext(t);
01027 } else if (t->Previous() != NULL) {
01028
01029 t->Previous()->SetNext(NULL);
01030 }
01031 prev = t;
01032 }
01033 }
01034
01040 static void RemoveFromConsist(Train *part, bool chain = false)
01041 {
01042 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
01043
01044
01045
01046 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
01047
01048
01049 tail->SetNext(NULL);
01050 }
01051
01057 static void InsertInConsist(Train *dst, Train *chain)
01058 {
01059
01060 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
01061
01062 chain->Last()->SetNext(dst->Next());
01063 dst->SetNext(chain);
01064 }
01065
01071 static void NormaliseDualHeads(Train *t)
01072 {
01073 for (; t != NULL; t = t->GetNextVehicle()) {
01074 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
01075
01076
01077 Train *u;
01078 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
01079
01080 if (u == t->other_multiheaded_part) continue;
01081
01082
01083 RemoveFromConsist(t->other_multiheaded_part);
01084
01085 InsertInConsist(u, t->other_multiheaded_part);
01086 }
01087 }
01088
01093 static void NormaliseSubtypes(Train *chain)
01094 {
01095
01096 if (chain == NULL) return;
01097
01098
01099 assert(chain->Previous() == NULL);
01100
01101
01102 if (chain->IsWagon()) {
01103 chain->SetFreeWagon();
01104 } else {
01105 assert(chain->IsEngine());
01106 chain->SetFrontEngine();
01107 }
01108
01109
01110 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
01111 t->ClearFreeWagon();
01112 t->ClearFrontEngine();
01113 }
01114 }
01115
01125 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
01126 {
01127
01128
01129
01130 if ((src != NULL && src->IsEngine() ? 1 : 0) +
01131 (dst != NULL && dst->IsEngine() ? 1 : 0) -
01132 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
01133 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
01134 return CommandCost();
01135 }
01136
01137
01138
01139 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
01140
01141 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
01142 }
01143
01149 static CommandCost CheckTrainAttachment(Train *t)
01150 {
01151
01152 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
01153
01154
01155
01156 int allowed_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
01157
01158 Train *head = t;
01159 Train *prev = t;
01160
01161
01162 t = t->Next();
01163 allowed_len--;
01164 prev->SetNext(NULL);
01165
01166
01167 head->InvalidateNewGRFCache();
01168
01169 while (t != NULL) {
01170 Train *next = t->Next();
01171
01172
01173
01174 t->SetNext(NULL);
01175
01176
01177 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
01178 allowed_len--;
01179
01180
01181 EngineID first_engine = t->tcache.first_engine;
01182 t->tcache.first_engine = INVALID_ENGINE;
01183
01184
01185
01186 t->InvalidateNewGRFCache();
01187
01188 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
01189
01190
01191 t->tcache.first_engine = first_engine;
01192
01193
01194 t->InvalidateNewGRFCache();
01195 head->InvalidateNewGRFCache();
01196
01197 if (callback != CALLBACK_FAILED) {
01198
01199 StringID error = STR_NULL;
01200
01201 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
01202 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(head->engine_type), 0xD000 + callback);
01203
01204 if (error != STR_NULL) return_cmd_error(error);
01205 }
01206 }
01207
01208
01209 prev->SetNext(t);
01210 prev = t;
01211 t = next;
01212 }
01213
01214 if (allowed_len <= 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01215 return CommandCost();
01216 }
01217
01227 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src)
01228 {
01229
01230 CommandCost ret = CheckTrainAttachment(src);
01231 if (ret.Failed()) return ret;
01232 ret = CheckTrainAttachment(dst);
01233 if (ret.Failed()) return ret;
01234
01235
01236 return CheckNewTrain(original_dst, dst, original_src, src);
01237 }
01238
01247 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01248 {
01249
01250 if (*src_head == *dst_head) {
01251
01252
01253 *dst_head = NULL;
01254 } else if (*dst_head == NULL) {
01255
01256
01257 *dst_head = src;
01258 }
01259
01260 if (src == *src_head) {
01261
01262
01263
01264
01265
01266
01267 *src_head = move_chain ? NULL :
01268 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01269 }
01270
01271
01272
01273
01274 RemoveFromConsist(src, move_chain);
01275 if (*dst_head != src) InsertInConsist(dst, src);
01276
01277
01278
01279 NormaliseDualHeads(*src_head);
01280 NormaliseDualHeads(*dst_head);
01281 }
01282
01288 static void NormaliseTrainHead(Train *head)
01289 {
01290
01291 if (head == NULL) return;
01292
01293
01294 TrainConsistChanged(head, false);
01295 UpdateTrainGroupID(head);
01296
01297
01298 if (!head->IsFrontEngine()) return;
01299
01300
01301 SetWindowDirty(WC_VEHICLE_REFIT, head->index);
01302 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, VVW_WIDGET_REFIT_VEH);
01303
01304
01305 if (head->unitnumber != 0) return;
01306 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01307 }
01308
01320 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01321 {
01322 VehicleID s = GB(p1, 0, 16);
01323 VehicleID d = GB(p1, 16, 16);
01324 bool move_chain = HasBit(p2, 0);
01325
01326 Train *src = Train::GetIfValid(s);
01327 if (src == NULL || !CheckOwnership(src->owner)) return CMD_ERROR;
01328
01329
01330 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01331
01332
01333 Train *dst;
01334 if (d == INVALID_VEHICLE) {
01335 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01336 } else {
01337 dst = Train::GetIfValid(d);
01338 if (dst == NULL || !CheckOwnership(dst->owner)) return CMD_ERROR;
01339
01340
01341 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01342 }
01343
01344
01345 src = src->GetFirstEnginePart();
01346 if (dst != NULL) {
01347 dst = dst->GetFirstEnginePart();
01348 }
01349
01350
01351 if (src == dst) return CommandCost();
01352
01353
01354 Train *src_head = src->First();
01355 Train *dst_head;
01356 if (dst != NULL) {
01357 dst_head = dst->First();
01358 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01359
01360 dst = dst->GetLastEnginePart();
01361 } else {
01362 dst_head = NULL;
01363 }
01364
01365 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01366
01367
01368 if (move_chain && src_head == dst_head) return CommandCost();
01369
01370
01371 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01372
01373
01374 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01375
01376
01377 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01378
01379
01380
01381 TrainList original_src;
01382 TrainList original_dst;
01383
01384 MakeTrainBackup(original_src, src_head);
01385 MakeTrainBackup(original_dst, dst_head);
01386
01387
01388
01389
01390 Train *original_src_head = src_head;
01391 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01392
01393
01394 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01395
01396 if ((flags & DC_AUTOREPLACE) == 0) {
01397
01398
01399
01400 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head);
01401 if (ret.Failed()) {
01402
01403 RestoreTrainBackup(original_src);
01404 RestoreTrainBackup(original_dst);
01405 return ret;
01406 }
01407 }
01408
01409
01410 if (flags & DC_EXEC) {
01411
01412 NormaliseSubtypes(src_head);
01413 NormaliseSubtypes(dst_head);
01414
01415
01416
01417
01418
01419
01420
01421
01422
01423
01424
01425
01426
01427
01428
01429
01430
01431
01432
01433
01434
01435 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01436
01437 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01438 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01439 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01440 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01441 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01442
01443
01444
01445
01446
01447
01448
01449
01450 if (dst_head != NULL ? dst_head != src : !src_head->IsFrontEngine()) {
01451 DecreaseGroupNumVehicle(src->group_id);
01452 }
01453
01454
01455
01456 DeleteVehicleOrders(src);
01457 RemoveVehicleFromGroup(src);
01458 src->unitnumber = 0;
01459 }
01460
01461
01462
01463 if (original_src_head != src && dst_head == src) {
01464 SetTrainGroupID(src, DEFAULT_GROUP);
01465 }
01466
01467
01468 NormaliseTrainHead(src_head);
01469 NormaliseTrainHead(dst_head);
01470
01471
01472 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01473 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01474 } else {
01475
01476 RestoreTrainBackup(original_src);
01477 RestoreTrainBackup(original_dst);
01478 }
01479
01480 return CommandCost();
01481 }
01482
01494 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01495 {
01496
01497 Window *w = NULL;
01498
01499 Train *v = Train::GetIfValid(p1);
01500 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
01501
01502
01503 bool sell_chain = HasBit(p2, 0);
01504
01505 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_SELL_DESTROYED_VEHICLE);
01506
01507 v = v->GetFirstEnginePart();
01508 Train *first = v->First();
01509
01510
01511 if (!first->IsStoppedInDepot()) {
01512 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01513 }
01514
01515 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01516
01517
01518
01519 TrainList original;
01520 MakeTrainBackup(original, first);
01521
01522
01523 Train *new_head = first;
01524 Train *sell_head = NULL;
01525
01526
01527 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01528
01529
01530 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head);
01531 if (ret.Failed()) {
01532
01533 RestoreTrainBackup(original);
01534 return ret;
01535 }
01536
01537 CommandCost cost(EXPENSES_NEW_VEHICLES);
01538 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01539
01540
01541 if (flags & DC_EXEC) {
01542
01543 NormaliseSubtypes(new_head);
01544
01545 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01546
01547
01548 new_head->orders.list = first->orders.list;
01549 new_head->AddToShared(first);
01550 DeleteVehicleOrders(first);
01551
01552
01553 new_head->CopyVehicleConfigAndStatistics(first);
01554 IncreaseGroupNumVehicle(new_head->group_id);
01555
01556
01557 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01558 }
01559
01560
01561 NormaliseTrainHead(new_head);
01562
01563
01564 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01565 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01566
01567
01568 delete sell_head;
01569 } else {
01570
01571 RestoreTrainBackup(original);
01572 }
01573
01574 return cost;
01575 }
01576
01577 void Train::UpdateDeltaXY(Direction direction)
01578 {
01579 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01580 static const uint32 _delta_xy_table[8] = {
01581 MKIT(3, 3, -1, -1),
01582 MKIT(3, 7, -1, -3),
01583 MKIT(3, 3, -1, -1),
01584 MKIT(7, 3, -3, -1),
01585 MKIT(3, 3, -1, -1),
01586 MKIT(3, 7, -1, -3),
01587 MKIT(3, 3, -1, -1),
01588 MKIT(7, 3, -3, -1),
01589 };
01590 #undef MKIT
01591
01592 uint32 x = _delta_xy_table[direction];
01593 this->x_offs = GB(x, 0, 8);
01594 this->y_offs = GB(x, 8, 8);
01595 this->x_extent = GB(x, 16, 8);
01596 this->y_extent = GB(x, 24, 8);
01597 this->z_extent = 6;
01598 }
01599
01600 static inline void SetLastSpeed(Train *v, int spd)
01601 {
01602 int old = v->tcache.last_speed;
01603 if (spd != old) {
01604 v->tcache.last_speed = spd;
01605 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01606 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01607 }
01608 }
01609 }
01610
01612 static void MarkTrainAsStuck(Train *v)
01613 {
01614 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01615
01616 SetBit(v->flags, VRF_TRAIN_STUCK);
01617
01618
01619 if (v->current_order.IsType(OT_LOADING)) return;
01620
01621 v->time_counter = 0;
01622
01623
01624 v->cur_speed = 0;
01625 v->subspeed = 0;
01626 SetLastSpeed(v, 0);
01627
01628 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01629 }
01630 }
01631
01632 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01633 {
01634 uint16 flag1 = *swap_flag1;
01635 uint16 flag2 = *swap_flag2;
01636
01637
01638 ClrBit(*swap_flag1, VRF_GOINGUP);
01639 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01640 ClrBit(*swap_flag2, VRF_GOINGUP);
01641 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01642
01643
01644 if (HasBit(flag1, VRF_GOINGUP)) {
01645 SetBit(*swap_flag2, VRF_GOINGDOWN);
01646 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01647 SetBit(*swap_flag2, VRF_GOINGUP);
01648 }
01649 if (HasBit(flag2, VRF_GOINGUP)) {
01650 SetBit(*swap_flag1, VRF_GOINGDOWN);
01651 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01652 SetBit(*swap_flag1, VRF_GOINGUP);
01653 }
01654 }
01655
01656 static void ReverseTrainSwapVeh(Train *v, int l, int r)
01657 {
01658 Train *a, *b;
01659
01660
01661 for (a = v; l != 0; l--) a = a->Next();
01662 for (b = v; r != 0; r--) b = b->Next();
01663
01664 if (a != b) {
01665
01666 {
01667 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01668 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01669 a->vehstatus = tmp;
01670 }
01671
01672 Swap(a->track, b->track);
01673 Swap(a->direction, b->direction);
01674
01675
01676 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01677 if (b->track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01678
01679 Swap(a->x_pos, b->x_pos);
01680 Swap(a->y_pos, b->y_pos);
01681 Swap(a->tile, b->tile);
01682 Swap(a->z_pos, b->z_pos);
01683
01684 SwapTrainFlags(&a->flags, &b->flags);
01685
01686
01687 a->UpdateViewport(true, true);
01688 b->UpdateViewport(true, true);
01689
01690
01691 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01692 if (b->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01693 } else {
01694 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01695 a->UpdateViewport(true, true);
01696
01697 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01698 }
01699
01700
01701 TrainPowerChanged(v);
01702 }
01703
01704
01710 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01711 {
01712 return (v->type == VEH_TRAIN) ? v : NULL;
01713 }
01714
01715
01722 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01723 {
01724 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01725
01726 Train *t = Train::From(v);
01727 if (!t->IsFrontEngine()) return NULL;
01728
01729 TileIndex tile = *(TileIndex *)data;
01730
01731 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01732
01733 return t;
01734 }
01735
01736
01743 static bool TrainApproachingCrossing(TileIndex tile)
01744 {
01745 assert(IsLevelCrossingTile(tile));
01746
01747 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01748 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01749
01750 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01751
01752 dir = ReverseDiagDir(dir);
01753 tile_from = tile + TileOffsByDiagDir(dir);
01754
01755 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01756 }
01757
01758
01765 void UpdateLevelCrossing(TileIndex tile, bool sound)
01766 {
01767 assert(IsLevelCrossingTile(tile));
01768
01769
01770 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01771
01772 if (new_state != IsCrossingBarred(tile)) {
01773 if (new_state && sound) {
01774 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01775 }
01776 SetCrossingBarred(tile, new_state);
01777 MarkTileDirtyByTile(tile);
01778 }
01779 }
01780
01781
01787 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01788 {
01789 if (!IsCrossingBarred(tile)) {
01790 BarCrossing(tile);
01791 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01792 MarkTileDirtyByTile(tile);
01793 }
01794 }
01795
01796
01802 static void AdvanceWagonsBeforeSwap(Train *v)
01803 {
01804 Train *base = v;
01805 Train *first = base;
01806 Train *last = v->Last();
01807 uint length = CountVehiclesInChain(v);
01808
01809 while (length > 2) {
01810 last = last->Previous();
01811 first = first->Next();
01812
01813 int differential = base->tcache.cached_veh_length - last->tcache.cached_veh_length;
01814
01815
01816
01817 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01818
01819 base = first;
01820 length -= 2;
01821 }
01822 }
01823
01824
01830 static void AdvanceWagonsAfterSwap(Train *v)
01831 {
01832
01833 Train *dep = v;
01834 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01835 dep = dep->Next();
01836 }
01837
01838 Train *leave = dep->Next();
01839
01840 if (leave != NULL) {
01841
01842 int d = TicksToLeaveDepot(dep);
01843
01844 if (d <= 0) {
01845 leave->vehstatus &= ~VS_HIDDEN;
01846 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01847 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01848 }
01849 } else {
01850 dep = NULL;
01851 }
01852
01853 Train *base = v;
01854 Train *first = base;
01855 Train *last = v->Last();
01856 uint length = CountVehiclesInChain(v);
01857
01858
01859
01860 bool nomove = (dep == NULL);
01861
01862 while (length > 2) {
01863
01864
01865 if (base == dep) break;
01866
01867
01868 if (last == dep) nomove = true;
01869
01870 last = last->Previous();
01871 first = first->Next();
01872
01873 int differential = last->tcache.cached_veh_length - base->tcache.cached_veh_length;
01874
01875
01876 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01877
01878 base = first;
01879 length -= 2;
01880 }
01881 }
01882
01883
01884 static void ReverseTrainDirection(Train *v)
01885 {
01886 if (IsRailDepotTile(v->tile)) {
01887 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01888 }
01889
01890
01891 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01892
01893
01894 TileIndex crossing = TrainApproachingCrossingTile(v);
01895
01896
01897 int r = CountVehiclesInChain(v) - 1;
01898
01899 AdvanceWagonsBeforeSwap(v);
01900
01901
01902 int l = 0;
01903 do {
01904 ReverseTrainSwapVeh(v, l++, r--);
01905 } while (l <= r);
01906
01907 AdvanceWagonsAfterSwap(v);
01908
01909 if (IsRailDepotTile(v->tile)) {
01910 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01911 }
01912
01913 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01914
01915 ClrBit(v->flags, VRF_REVERSING);
01916
01917
01918 TrainConsistChanged(v, true);
01919
01920
01921 for (Vehicle *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01922
01923
01924 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01925
01926
01927 crossing = TrainApproachingCrossingTile(v);
01928 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01929
01930
01931 if (v->track == TRACK_BIT_DEPOT) {
01932
01933 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01934 ClrBit(v->flags, VRF_TRAIN_STUCK);
01935 return;
01936 }
01937
01938
01939
01940 DiagDirection dir = TrainExitDir(v->direction, v->track);
01941 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01942
01943 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01944
01945
01946 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01947 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01948 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01949
01950 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01951 if (TryPathReserve(v, false, first_tile_okay)) {
01952
01953 CheckNextTrainTile(v);
01954 } else if (v->current_order.GetType() != OT_LOADING) {
01955
01956 MarkTrainAsStuck(v);
01957 }
01958 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01959
01960 ClrBit(v->flags, VRF_TRAIN_STUCK);
01961 v->time_counter = 0;
01962 }
01963 }
01964
01973 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01974 {
01975 Train *v = Train::GetIfValid(p1);
01976 if (v == NULL || !CheckVehicleControlAllowed(v)) return CMD_ERROR;
01977
01978 if (p2 != 0) {
01979
01980
01981 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01982 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01983 }
01984
01985 Train *front = v->First();
01986
01987 if (!front->IsStoppedInDepot()) {
01988 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01989 }
01990
01991 if (flags & DC_EXEC) {
01992 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01993 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
01994 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
01995
01996 v->force_proceed = 0;
01997 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01998 }
01999 } else {
02000
02001 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
02002
02003 if (flags & DC_EXEC) {
02004
02005 if (v->current_order.IsType(OT_LOADING)) {
02006 const Vehicle *last = v;
02007 while (last->Next() != NULL) last = last->Next();
02008
02009
02010 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
02011 v->LeaveStation();
02012 }
02013 }
02014
02015
02016 v->force_proceed = 0;
02017 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02018
02019 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL && v->cur_speed != 0) {
02020 ToggleBit(v->flags, VRF_REVERSING);
02021 } else {
02022 v->cur_speed = 0;
02023 SetLastSpeed(v, 0);
02024 HideFillingPercent(&v->fill_percent_te_id);
02025 ReverseTrainDirection(v);
02026 }
02027 }
02028 }
02029 return CommandCost();
02030 }
02031
02040 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02041 {
02042 Train *t = Train::GetIfValid(p1);
02043 if (t == NULL || !CheckVehicleControlAllowed(t)) return CMD_ERROR;
02044
02045 if (flags & DC_EXEC) {
02046
02047
02048
02049
02050
02051 t->force_proceed = t->force_proceed == 2 ? 0 : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? 1 : 2;
02052 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
02053 }
02054
02055 return CommandCost();
02056 }
02057
02069 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02070 {
02071 CargoID new_cid = GB(p2, 0, 8);
02072 byte new_subtype = GB(p2, 8, 8);
02073 bool only_this = HasBit(p2, 16);
02074
02075 Train *v = Train::GetIfValid(p1);
02076 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
02077
02078 if (!v->IsStoppedInDepot()) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02079 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_REFIT_DESTROYED_VEHICLE);
02080
02081
02082 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02083
02084 CommandCost cost = RefitVehicle(v, only_this, new_cid, new_subtype, flags);
02085
02086
02087 if (flags & DC_EXEC) {
02088 Train *front = v->First();
02089 TrainConsistChanged(front, false);
02090 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
02091 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
02092 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02093 } else {
02094 v->InvalidateNewGRFCacheOfChain();
02095 }
02096
02097 return cost;
02098 }
02099
02102 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
02103 {
02104 assert(!(v->vehstatus & VS_CRASHED));
02105
02106 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
02107
02108 PBSTileInfo origin = FollowTrainReservation(v);
02109 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
02110
02111 switch (_settings_game.pf.pathfinder_for_trains) {
02112 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
02113 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
02114
02115 default: NOT_REACHED();
02116 }
02117 }
02118
02119 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02120 {
02121 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
02122 if (tfdd.best_length == UINT_MAX) return false;
02123
02124 if (location != NULL) *location = tfdd.tile;
02125 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
02126 if (reverse != NULL) *reverse = tfdd.reverse;
02127
02128 return true;
02129 }
02130
02141 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02142 {
02143 if (p2 & DEPOT_MASS_SEND) {
02144
02145 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02146 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02147 }
02148
02149 Train *v = Train::GetIfValid(p1);
02150 if (v == NULL) return CMD_ERROR;
02151
02152 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02153 }
02154
02155 static const int8 _vehicle_smoke_pos[8] = {
02156 1, 1, 1, 0, -1, -1, -1, 0
02157 };
02158
02159 static void HandleLocomotiveSmokeCloud(const Train *v)
02160 {
02161 bool sound = false;
02162
02163 if ((v->vehstatus & VS_TRAIN_SLOWING) || v->cur_speed < 2) {
02164 return;
02165 }
02166
02167 const Train *u = v;
02168
02169 do {
02170 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02171 int effect_offset = GB(v->tcache.cached_vis_effect, 0, 4) - 8;
02172 byte effect_type = GB(v->tcache.cached_vis_effect, 4, 2);
02173 bool disable_effect = HasBit(v->tcache.cached_vis_effect, 6);
02174
02175
02176 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02177 disable_effect ||
02178 v->vehstatus & VS_HIDDEN) {
02179 continue;
02180 }
02181
02182
02183 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02184
02185
02186 if (!HasPowerOnRail(v->railtype, GetTileRailType(v->tile))) continue;
02187
02188 if (effect_type == 0) {
02189
02190 effect_type = rvi->engclass;
02191 } else {
02192 effect_type--;
02193 }
02194
02195 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02196 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02197
02198 if (HasBit(v->flags, VRF_REVERSE_DIRECTION)) {
02199 x = -x;
02200 y = -y;
02201 }
02202
02203 switch (effect_type) {
02204 case 0:
02205
02206 if (GB(v->tick_counter, 0, 4) == 0) {
02207 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02208 sound = true;
02209 }
02210 break;
02211
02212 case 1:
02213
02214 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02215 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02216 sound = true;
02217 }
02218 break;
02219
02220 case 2:
02221
02222 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02223 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02224 sound = true;
02225 }
02226 break;
02227
02228 default:
02229 break;
02230 }
02231 } while ((v = v->Next()) != NULL);
02232
02233 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02234 }
02235
02236 void Train::PlayLeaveStationSound() const
02237 {
02238 static const SoundFx sfx[] = {
02239 SND_04_TRAIN,
02240 SND_0A_TRAIN_HORN,
02241 SND_0A_TRAIN_HORN,
02242 SND_47_MAGLEV_2,
02243 SND_41_MAGLEV
02244 };
02245
02246 if (PlayVehicleSound(this, VSE_START)) return;
02247
02248 EngineID engtype = this->engine_type;
02249 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02250 }
02251
02253 static void CheckNextTrainTile(Train *v)
02254 {
02255
02256 if (_settings_game.pf.path_backoff_interval == 255) return;
02257
02258
02259 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->track == TRACK_BIT_DEPOT) return;
02260
02261 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02262
02263 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02264
02265 Trackdir td = v->GetVehicleTrackdir();
02266
02267
02268 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02269 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02270 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02271
02272 CFollowTrackRail ft(v);
02273 if (!ft.Follow(v->tile, td)) return;
02274
02275 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02276
02277 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02278 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02279
02280 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02281 if (_settings_game.pf.forbid_90_deg) {
02282 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02283 }
02284 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02285 }
02286 }
02287 }
02288 }
02289
02290 static bool CheckTrainStayInDepot(Train *v)
02291 {
02292
02293 for (const Train *u = v; u != NULL; u = u->Next()) {
02294 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02295 }
02296
02297
02298 if (v->tcache.cached_power == 0) {
02299 v->vehstatus |= VS_STOPPED;
02300 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02301 return true;
02302 }
02303
02304 SigSegState seg_state;
02305
02306 if (v->force_proceed == 0) {
02307
02308 if (++v->time_counter < 37) {
02309 SetWindowClassesDirty(WC_TRAINS_LIST);
02310 return true;
02311 }
02312
02313 v->time_counter = 0;
02314
02315 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02316 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02317
02318 SetWindowClassesDirty(WC_TRAINS_LIST);
02319 return true;
02320 }
02321 } else {
02322 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02323 }
02324
02325
02326 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02327
02328 if (HasDepotReservation(v->tile)) return true;
02329 SetDepotReservation(v->tile, true);
02330 VehicleEnterDepot(v);
02331 return true;
02332 }
02333
02334
02335 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == 0) {
02336
02337 SetWindowClassesDirty(WC_TRAINS_LIST);
02338 MarkTrainAsStuck(v);
02339 return true;
02340 }
02341
02342 SetDepotReservation(v->tile, true);
02343 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02344
02345 VehicleServiceInDepot(v);
02346 SetWindowClassesDirty(WC_TRAINS_LIST);
02347 v->PlayLeaveStationSound();
02348
02349 v->track = TRACK_BIT_X;
02350 if (v->direction & 2) v->track = TRACK_BIT_Y;
02351
02352 v->vehstatus &= ~VS_HIDDEN;
02353 v->cur_speed = 0;
02354
02355 v->UpdateDeltaXY(v->direction);
02356 v->cur_image = v->GetImage(v->direction);
02357 VehicleMove(v, false);
02358 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02359 UpdateTrainAcceleration(v);
02360 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02361
02362 return false;
02363 }
02364
02366 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02367 {
02368 DiagDirection dir = TrackdirToExitdir(track_dir);
02369
02370 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02371
02372 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02373 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02374
02375 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02376
02377 SetTunnelBridgeReservation(tile, false);
02378 SetTunnelBridgeReservation(end, false);
02379
02380 if (_settings_client.gui.show_track_reservation) {
02381 MarkTileDirtyByTile(tile);
02382 MarkTileDirtyByTile(end);
02383 }
02384 }
02385 }
02386 } else if (IsRailStationTile(tile)) {
02387 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02388
02389
02390 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02391 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02392 }
02393 } else {
02394
02395 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02396 }
02397 }
02398
02400 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02401 {
02402 assert(v->IsFrontEngine());
02403
02404 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02405 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02406 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02407 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02408
02409
02410 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02411
02412 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02413 while (ft.Follow(tile, td)) {
02414 tile = ft.m_new_tile;
02415 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02416 td = RemoveFirstTrackdir(&bits);
02417 assert(bits == TRACKDIR_BIT_NONE);
02418
02419 if (!IsValidTrackdir(td)) break;
02420
02421 if (IsTileType(tile, MP_RAILWAY)) {
02422 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02423
02424 UnreserveRailTrack(tile, TrackdirToTrack(td));
02425 break;
02426 }
02427 if (HasPbsSignalOnTrackdir(tile, td)) {
02428 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02429
02430 break;
02431 } else {
02432
02433 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02434 MarkTileDirtyByTile(tile);
02435 }
02436 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02437 break;
02438 }
02439 }
02440
02441
02442 if (free_tile || (!(ft.m_is_station && GetStationIndex(ft.m_new_tile) == station_id) && !ft.m_is_tunnel && !ft.m_is_bridge)) ClearPathReservation(v, tile, td);
02443
02444 free_tile = true;
02445 }
02446 }
02447
02448 static const byte _initial_tile_subcoord[6][4][3] = {
02449 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02450 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02451 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02452 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02453 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02454 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02455 };
02456
02469 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02470 {
02471 switch (_settings_game.pf.pathfinder_for_trains) {
02472 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02473 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02474
02475 default: NOT_REACHED();
02476 }
02477 }
02478
02484 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02485 {
02486 PBSTileInfo origin = FollowTrainReservation(v);
02487
02488 CFollowTrackRail ft(v);
02489
02490 TileIndex tile = origin.tile;
02491 Trackdir cur_td = origin.trackdir;
02492 while (ft.Follow(tile, cur_td)) {
02493 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02494
02495 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02496 }
02497
02498 if (_settings_game.pf.forbid_90_deg) {
02499 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02500 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02501 }
02502
02503
02504 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02505 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02506
02507
02508
02509
02510
02511
02512 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02513
02514
02515
02516 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02517
02518
02519 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02520 if (enterdir) *enterdir = ft.m_exitdir;
02521 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02522 }
02523
02524 tile = ft.m_new_tile;
02525 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02526
02527 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02528 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02529 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02530
02531 return PBSTileInfo(tile, cur_td, true);
02532 }
02533
02534 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02535 }
02536
02537 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02538
02539 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02540 }
02541
02542
02543 tile = origin.tile;
02544 cur_td = origin.trackdir;
02545 TileIndex stopped = ft.m_old_tile;
02546 Trackdir stopped_td = ft.m_old_td;
02547 while (tile != stopped || cur_td != stopped_td) {
02548 if (!ft.Follow(tile, cur_td)) break;
02549
02550 if (_settings_game.pf.forbid_90_deg) {
02551 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02552 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02553 }
02554 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02555
02556 tile = ft.m_new_tile;
02557 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02558
02559 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02560 }
02561
02562
02563 return PBSTileInfo();
02564 }
02565
02576 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02577 {
02578 switch (_settings_game.pf.pathfinder_for_trains) {
02579 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02580 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02581
02582 default: NOT_REACHED();
02583 }
02584 }
02585
02587 class VehicleOrderSaver
02588 {
02589 private:
02590 Vehicle *v;
02591 Order old_order;
02592 TileIndex old_dest_tile;
02593 StationID old_last_station_visited;
02594 VehicleOrderID index;
02595
02596 public:
02597 VehicleOrderSaver(Vehicle *_v) :
02598 v(_v),
02599 old_order(_v->current_order),
02600 old_dest_tile(_v->dest_tile),
02601 old_last_station_visited(_v->last_station_visited),
02602 index(_v->cur_order_index)
02603 {
02604 }
02605
02606 ~VehicleOrderSaver()
02607 {
02608 this->v->current_order = this->old_order;
02609 this->v->dest_tile = this->old_dest_tile;
02610 this->v->last_station_visited = this->old_last_station_visited;
02611 }
02612
02618 bool SwitchToNextOrder(bool skip_first)
02619 {
02620 if (this->v->GetNumOrders() == 0) return false;
02621
02622 if (skip_first) ++this->index;
02623
02624 int conditional_depth = 0;
02625
02626 do {
02627
02628 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02629
02630 Order *order = this->v->GetOrder(this->index);
02631 assert(order != NULL);
02632
02633 switch (order->GetType()) {
02634 case OT_GOTO_DEPOT:
02635
02636 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02637 case OT_GOTO_STATION:
02638 case OT_GOTO_WAYPOINT:
02639 this->v->current_order = *order;
02640 UpdateOrderDest(this->v, order);
02641 return true;
02642 case OT_CONDITIONAL: {
02643 if (conditional_depth > this->v->GetNumOrders()) return false;
02644 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02645 if (next != INVALID_VEH_ORDER_ID) {
02646 conditional_depth++;
02647 this->index = next;
02648
02649 continue;
02650 }
02651 break;
02652 }
02653 default:
02654 break;
02655 }
02656
02657
02658 ++this->index;
02659 } while (this->index != this->v->cur_order_index);
02660
02661 return false;
02662 }
02663 };
02664
02665
02666 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02667 {
02668 Track best_track = INVALID_TRACK;
02669 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02670 bool changed_signal = false;
02671
02672 assert((tracks & ~TRACK_BIT_MASK) == 0);
02673
02674 if (got_reservation != NULL) *got_reservation = false;
02675
02676
02677 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02678
02679 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02680
02681
02682 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02683 Track track = FindFirstTrack(tracks);
02684
02685 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02686 do_track_reservation = true;
02687 changed_signal = true;
02688 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02689 } else if (!do_track_reservation) {
02690 return track;
02691 }
02692 best_track = track;
02693 }
02694
02695 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02696 DiagDirection dest_enterdir = enterdir;
02697 if (do_track_reservation) {
02698
02699
02700
02701 CheckIfTrainNeedsService(v);
02702 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02703
02704 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02705 if (res_dest.tile == INVALID_TILE) {
02706
02707 if (mark_stuck) MarkTrainAsStuck(v);
02708 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02709 return FindFirstTrack(tracks);
02710 }
02711 }
02712
02713
02714 VehicleOrderSaver orders(v);
02715
02716
02717
02718
02719
02720
02721
02722 if (v->current_order.IsType(OT_LEAVESTATION)) {
02723 orders.SwitchToNextOrder(false);
02724 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02725 v->current_order.IsType(OT_GOTO_STATION) ?
02726 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02727 v->tile == v->dest_tile))) {
02728 orders.SwitchToNextOrder(true);
02729 }
02730
02731 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02732
02733 bool path_not_found = false;
02734 TileIndex new_tile = res_dest.tile;
02735
02736 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02737 if (new_tile == tile) best_track = next_track;
02738
02739
02740 if (path_not_found) {
02741
02742 if (!HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02743
02744 SetBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02745
02746 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02747 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02748 SetDParam(0, v->index);
02749 AddVehicleNewsItem(
02750 STR_NEWS_TRAIN_IS_LOST,
02751 NS_ADVICE,
02752 v->index
02753 );
02754 }
02755 }
02756 } else {
02757
02758 if (HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02759
02760 ClrBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02761
02762 }
02763 }
02764 }
02765
02766
02767 if (!do_track_reservation) return best_track;
02768
02769
02770 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02771 if (mark_stuck) MarkTrainAsStuck(v);
02772 FreeTrainTrackReservation(v);
02773 return best_track;
02774 }
02775
02776
02777 if (res_dest.tile == INVALID_TILE) {
02778
02779 PBSTileInfo origin = FollowTrainReservation(v);
02780 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02781 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02782 best_track = FindFirstTrack(res);
02783 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02784 if (got_reservation != NULL) *got_reservation = true;
02785 if (changed_signal) MarkTileDirtyByTile(tile);
02786 } else {
02787 FreeTrainTrackReservation(v);
02788 if (mark_stuck) MarkTrainAsStuck(v);
02789 }
02790 return best_track;
02791 }
02792
02793 if (got_reservation != NULL) *got_reservation = true;
02794
02795
02796 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02797
02798 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02799 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02800 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02801 if (_settings_game.pf.forbid_90_deg) {
02802 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02803 }
02804
02805
02806 if (orders.SwitchToNextOrder(true)) {
02807 PBSTileInfo cur_dest;
02808 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
02809 if (cur_dest.tile != INVALID_TILE) {
02810 res_dest = cur_dest;
02811 if (res_dest.okay) continue;
02812
02813 FreeTrainTrackReservation(v);
02814 if (mark_stuck) MarkTrainAsStuck(v);
02815 if (got_reservation != NULL) *got_reservation = false;
02816 changed_signal = false;
02817 break;
02818 }
02819 }
02820
02821 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02822 FreeTrainTrackReservation(v);
02823 if (mark_stuck) MarkTrainAsStuck(v);
02824 if (got_reservation != NULL) *got_reservation = false;
02825 changed_signal = false;
02826 }
02827 break;
02828 }
02829
02830 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02831
02832 if (changed_signal) MarkTileDirtyByTile(tile);
02833
02834 return best_track;
02835 }
02836
02845 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02846 {
02847 assert(v->IsFrontEngine());
02848
02849
02850
02851
02852 if (v->track == TRACK_BIT_DEPOT) {
02853 if (HasDepotReservation(v->tile)) {
02854 if (mark_as_stuck) MarkTrainAsStuck(v);
02855 return false;
02856 } else {
02857
02858 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02859 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02860 }
02861 }
02862
02863
02864 DiagDirection dir = TrainExitDir(v->direction, v->track);
02865 TileIndex next_tile = TileAddByDiagDir(v->tile, dir);
02866 if (IsTileType(next_tile, MP_RAILWAY) && HasReservedTracks(next_tile, DiagdirReachesTracks(dir))) {
02867
02868 Trackdir td = FindFirstTrackdir(TrackBitsToTrackdirBits(GetReservedTrackbits(next_tile)) & DiagdirReachesTrackdirs(dir));
02869 if (HasSignalOnTrackdir(next_tile, td) && HasSignalOnTrackdir(next_tile, ReverseTrackdir(td)) &&
02870 !IsPbsSignal(GetSignalType(next_tile, TrackdirToTrack(td)))) {
02871
02872 if (mark_as_stuck) MarkTrainAsStuck(v);
02873 return false;
02874 }
02875 }
02876
02877 Vehicle *other_train = NULL;
02878 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02879
02880
02881
02882
02883
02884 if (other_train != NULL && other_train->index != v->index) {
02885 if (mark_as_stuck) MarkTrainAsStuck(v);
02886 return false;
02887 }
02888
02889 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02890
02891 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02892 ClrBit(v->flags, VRF_TRAIN_STUCK);
02893 return true;
02894 }
02895
02896
02897 if (v->track == TRACK_BIT_DEPOT) {
02898 SetDepotReservation(v->tile, true);
02899 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02900 }
02901
02902 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02903 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02904 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02905
02906 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02907
02908 bool res_made = false;
02909 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02910
02911 if (!res_made) {
02912
02913 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02914 return false;
02915 }
02916
02917 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02918
02919
02920
02921
02922
02923 if (!v->current_order.IsType(OT_LOADING)) v->time_counter = 0;
02924 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02925 }
02926 ClrBit(v->flags, VRF_TRAIN_STUCK);
02927 return true;
02928 }
02929
02930
02931 static bool CheckReverseTrain(const Train *v)
02932 {
02933 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02934 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02935 !(v->direction & 1)) {
02936 return false;
02937 }
02938
02939 assert(v->track != TRACK_BIT_NONE);
02940
02941 switch (_settings_game.pf.pathfinder_for_trains) {
02942 case VPF_NPF: return NPFTrainCheckReverse(v);
02943 case VPF_YAPF: return YapfTrainCheckReverse(v);
02944
02945 default: NOT_REACHED();
02946 }
02947 }
02948
02949 TileIndex Train::GetOrderStationLocation(StationID station)
02950 {
02951 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02952
02953 const Station *st = Station::Get(station);
02954 if (!(st->facilities & FACIL_TRAIN)) {
02955
02956 this->IncrementOrderIndex();
02957 return 0;
02958 }
02959
02960 return st->xy;
02961 }
02962
02963 void Train::MarkDirty()
02964 {
02965 Vehicle *v = this;
02966 do {
02967 v->UpdateViewport(false, false);
02968 } while ((v = v->Next()) != NULL);
02969
02970
02971 TrainCargoChanged(this);
02972 UpdateTrainAcceleration(this);
02973 }
02974
02985 static int UpdateTrainSpeed(Train *v)
02986 {
02987 uint accel;
02988
02989 if ((v->vehstatus & VS_STOPPED) || HasBit(v->flags, VRF_REVERSING) || HasBit(v->flags, VRF_TRAIN_STUCK)) {
02990 switch (_settings_game.vehicle.train_acceleration_model) {
02991 default: NOT_REACHED();
02992 case TAM_ORIGINAL: accel = v->acceleration * -4; break;
02993 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_BRAKE); break;
02994 }
02995 } else {
02996 switch (_settings_game.vehicle.train_acceleration_model) {
02997 default: NOT_REACHED();
02998 case TAM_ORIGINAL: accel = v->acceleration * 2; break;
02999 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_ACCEL); break;
03000 }
03001 }
03002
03003 uint spd = v->subspeed + accel;
03004 v->subspeed = (byte)spd;
03005 {
03006 int tempmax = v->max_speed;
03007 if (v->cur_speed > v->max_speed)
03008 tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
03009 v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
03010 }
03011
03012
03013
03014
03015
03016
03017
03018
03019
03020
03021
03022
03023 int scaled_spd = spd * 3 >> 2;
03024
03025 scaled_spd += v->progress;
03026 v->progress = 0;
03027 return scaled_spd;
03028 }
03029
03030 static void TrainEnterStation(Train *v, StationID station)
03031 {
03032 v->last_station_visited = station;
03033
03034
03035 Station *st = Station::Get(station);
03036 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
03037 st->had_vehicle_of_type |= HVOT_TRAIN;
03038 SetDParam(0, st->index);
03039 AddVehicleNewsItem(
03040 STR_NEWS_FIRST_TRAIN_ARRIVAL,
03041 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
03042 v->index,
03043 st->index
03044 );
03045 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
03046 }
03047
03048 v->BeginLoading();
03049
03050 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03051 }
03052
03053 static byte AfterSetTrainPos(Train *v, bool new_tile)
03054 {
03055 byte old_z = v->z_pos;
03056 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03057
03058 if (new_tile) {
03059 ClrBit(v->flags, VRF_GOINGUP);
03060 ClrBit(v->flags, VRF_GOINGDOWN);
03061
03062 if (v->track == TRACK_BIT_X || v->track == TRACK_BIT_Y) {
03063
03064
03065
03066
03067
03068 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03069 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03070
03071 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03072
03073 if (middle_z != v->z_pos) {
03074 SetBit(v->flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03075 }
03076 }
03077 }
03078
03079 VehicleMove(v, true);
03080 return old_z;
03081 }
03082
03083
03084 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
03085 {
03086 return
03087 IsInfraTileUsageAllowed(tile, v->owner, VEH_TRAIN) && (
03088 !v->IsFrontEngine() ||
03089 HasBit(v->compatible_railtypes, GetRailType(tile))
03090 );
03091 }
03092
03093 struct RailtypeSlowdownParams {
03094 byte small_turn, large_turn;
03095 byte z_up;
03096 byte z_down;
03097 };
03098
03099 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03100
03101 {256 / 4, 256 / 2, 256 / 4, 2},
03102 {256 / 4, 256 / 2, 256 / 4, 2},
03103 {256 / 4, 256 / 2, 256 / 4, 2},
03104 {0, 256 / 2, 256 / 4, 2},
03105 };
03106
03108 static inline void AffectSpeedByZChange(Train *v, byte old_z)
03109 {
03110 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03111
03112 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03113
03114 if (old_z < v->z_pos) {
03115 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03116 } else {
03117 uint16 spd = v->cur_speed + rsp->z_down;
03118 if (spd <= v->max_speed) v->cur_speed = spd;
03119 }
03120 }
03121
03122 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03123 {
03124 if (IsTileType(tile, MP_RAILWAY) &&
03125 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03126 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03127 Trackdir trackdir = FindFirstTrackdir(tracks);
03128 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03129
03130 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03131 }
03132 }
03133 return false;
03134 }
03135
03139 void Train::ReserveTrackUnderConsist() const
03140 {
03141 for (const Train *u = this; u != NULL; u = u->Next()) {
03142 switch (u->track) {
03143 case TRACK_BIT_WORMHOLE:
03144 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
03145 break;
03146 case TRACK_BIT_DEPOT:
03147 break;
03148 default:
03149 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
03150 break;
03151 }
03152 }
03153 }
03154
03155 uint Train::Crash(bool flooded)
03156 {
03157 uint pass = 0;
03158 if (this->IsFrontEngine()) {
03159 pass += 4;
03160
03161
03162
03163 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
03164 for (const Train *v = this; v != NULL; v = v->Next()) {
03165 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03166 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
03167
03168
03169 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
03170 }
03171 }
03172
03173
03174
03175 TileIndex crossing = TrainApproachingCrossingTile(this);
03176 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03177 }
03178
03179 pass += Vehicle::Crash(flooded);
03180
03181 this->crash_anim_pos = flooded ? 4000 : 1;
03182 return pass;
03183 }
03184
03191 static uint TrainCrashed(Train *v)
03192 {
03193 uint num = 0;
03194
03195
03196 if (!(v->vehstatus & VS_CRASHED)) {
03197 num = v->Crash();
03198 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03199 }
03200
03201
03202
03203 v->ReserveTrackUnderConsist();
03204
03205 return num;
03206 }
03207
03208 struct TrainCollideChecker {
03209 Train *v;
03210 uint num;
03211 };
03212
03213 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03214 {
03215 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03216
03217
03218 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
03219
03220
03221 Train *coll = Train::From(v)->First();
03222
03223
03224 if (coll == tcc->v) return NULL;
03225
03226 int x_diff = v->x_pos - tcc->v->x_pos;
03227 int y_diff = v->y_pos - tcc->v->y_pos;
03228
03229
03230
03231
03232
03233 uint hash = (y_diff + 7) | (x_diff + 7);
03234 if (hash & ~15) return NULL;
03235
03236
03237 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03238
03239
03240 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
03241
03242
03243 tcc->num += TrainCrashed(tcc->v);
03244 tcc->num += TrainCrashed(coll);
03245
03246 return NULL;
03247 }
03248
03255 static bool CheckTrainCollision(Train *v)
03256 {
03257
03258 if (v->track == TRACK_BIT_DEPOT) return false;
03259
03260 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03261
03262 TrainCollideChecker tcc;
03263 tcc.v = v;
03264 tcc.num = 0;
03265
03266
03267 if (v->track == TRACK_BIT_WORMHOLE) {
03268 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03269 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03270 } else {
03271 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03272 }
03273
03274
03275 if (tcc.num == 0) return false;
03276
03277 SetDParam(0, tcc.num);
03278 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
03279 NS_ACCIDENT,
03280 v->index
03281 );
03282
03283 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03284 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03285 return true;
03286 }
03287
03288 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03289 {
03290 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03291
03292 Train *t = Train::From(v);
03293 DiagDirection exitdir = *(DiagDirection *)data;
03294
03295
03296 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03297
03298 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03299
03300 return t;
03301 }
03302
03303 static void TrainController(Train *v, Vehicle *nomove)
03304 {
03305 Train *first = v->First();
03306 Train *prev;
03307 bool direction_changed = false;
03308
03309
03310 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03311 DiagDirection enterdir = DIAGDIR_BEGIN;
03312 bool update_signals_crossing = false;
03313
03314 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03315 if (v->track != TRACK_BIT_WORMHOLE) {
03316
03317 if (gp.old_tile == gp.new_tile) {
03318
03319 if (v->track == TRACK_BIT_DEPOT) {
03320
03321 gp.x = v->x_pos;
03322 gp.y = v->y_pos;
03323 } else {
03324
03325
03326
03327 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v)) return;
03328
03329 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03330 if (HasBit(r, VETS_CANNOT_ENTER)) {
03331 goto invalid_rail;
03332 }
03333 if (HasBit(r, VETS_ENTERED_STATION)) {
03334
03335 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03336 }
03337 }
03338 } else {
03339
03340
03341
03342 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03343 assert(IsValidDiagDirection(enterdir));
03344
03345
03346
03347 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03348 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03349
03350 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03351 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03352
03353 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03354 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03355
03356
03357 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03358 }
03359
03360 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03361
03362
03363
03364 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03365
03366 TrackBits chosen_track;
03367 if (prev == NULL) {
03368
03369
03370 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03371 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03372
03373 if (v->force_proceed != 0 && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03374
03375
03376
03377
03378 Trackdir dir = FindFirstTrackdir(trackdirbits);
03379 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03380 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03381
03382
03383 v->force_proceed--;
03384 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03385 }
03386 }
03387
03388
03389 if ((red_signals & chosen_track) && v->force_proceed == 0) {
03390
03391 Trackdir i = FindFirstTrackdir(trackdirbits);
03392
03393
03394 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return;
03395
03396 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03397 v->cur_speed = 0;
03398 v->subspeed = 0;
03399 v->progress = 255 - 100;
03400 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->time_counter < _settings_game.pf.wait_oneway_signal * 20) return;
03401 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03402 v->cur_speed = 0;
03403 v->subspeed = 0;
03404 v->progress = 255 - 10;
03405 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->time_counter < _settings_game.pf.wait_twoway_signal * 73) {
03406 DiagDirection exitdir = TrackdirToExitdir(i);
03407 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03408
03409 exitdir = ReverseDiagDir(exitdir);
03410
03411
03412 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return;
03413 }
03414 }
03415
03416
03417
03418 if (_settings_game.pf.wait_for_pbs_path == 255 && UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03419 v->time_counter = 0;
03420 return;
03421 }
03422 goto reverse_train_direction;
03423 } else {
03424 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03425 }
03426 } else {
03427
03428 if (prev->tile == gp.new_tile) {
03429
03430 if (prev->track == TRACK_BIT_WORMHOLE) {
03431
03432
03433 assert(IsTunnel(prev->tile));
03434 chosen_track = bits;
03435 } else {
03436 chosen_track = prev->track;
03437 }
03438 } else {
03439
03440
03441
03442
03443
03444
03445
03446 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03447 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03448 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03449 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03450 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03451 };
03452 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03453 assert(IsValidDiagDirection(exitdir));
03454 chosen_track = _connecting_track[enterdir][exitdir];
03455 }
03456 chosen_track &= bits;
03457 }
03458
03459
03460 assert(
03461 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03462 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03463 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03464
03465
03466 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03467 gp.x = (gp.x & ~0xF) | b[0];
03468 gp.y = (gp.y & ~0xF) | b[1];
03469 Direction chosen_dir = (Direction)b[2];
03470
03471
03472 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03473 if (HasBit(r, VETS_CANNOT_ENTER)) {
03474 goto invalid_rail;
03475 }
03476
03477 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03478 Track track = FindFirstTrack(chosen_track);
03479 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03480 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03481 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03482 MarkTileDirtyByTile(gp.new_tile);
03483 }
03484
03485
03486 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03487
03488 v->tile = gp.new_tile;
03489
03490 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03491 TrainPowerChanged(v->First());
03492 }
03493
03494 v->track = chosen_track;
03495 assert(v->track);
03496 }
03497
03498
03499
03500 update_signals_crossing = true;
03501
03502 if (chosen_dir != v->direction) {
03503 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == TAM_ORIGINAL) {
03504 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03505 DirDiff diff = DirDifference(v->direction, chosen_dir);
03506 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03507 }
03508 direction_changed = true;
03509 v->direction = chosen_dir;
03510 }
03511
03512 if (v->IsFrontEngine()) {
03513 v->time_counter = 0;
03514
03515
03516 TileIndex crossing = TrainApproachingCrossingTile(v);
03517 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03518
03519
03520 CheckNextTrainTile(v);
03521 }
03522
03523 if (HasBit(r, VETS_ENTERED_STATION)) {
03524
03525 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03526 }
03527 }
03528 } else {
03529
03530
03531
03532 if (!(v->vehstatus & VS_HIDDEN)) {
03533 v->cur_speed =
03534 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03535 }
03536
03537 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03538
03539 if (v->IsFrontEngine()) {
03540 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03541 CheckNextTrainTile(v);
03542 }
03543 } else {
03544 v->x_pos = gp.x;
03545 v->y_pos = gp.y;
03546 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03547 continue;
03548 }
03549 }
03550
03551
03552 v->UpdateDeltaXY(v->direction);
03553
03554 v->x_pos = gp.x;
03555 v->y_pos = gp.y;
03556
03557
03558 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03559
03560 if (prev == NULL) {
03561
03562 AffectSpeedByZChange(v, old_z);
03563 }
03564
03565 if (update_signals_crossing) {
03566 if (v->IsFrontEngine()) {
03567 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03568
03569
03570
03571
03572
03573
03574
03575
03576 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03577 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03578 !TryPathReserve(v)) {
03579 MarkTrainAsStuck(v);
03580 }
03581 }
03582 }
03583
03584
03585
03586 if (v->Next() == NULL) {
03587 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03588 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03589 }
03590 }
03591
03592
03593 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03594 }
03595
03596 if (direction_changed) first->tcache.cached_max_curve_speed = GetTrainCurveSpeedLimit(first);
03597
03598 return;
03599
03600 invalid_rail:
03601
03602 if (prev != NULL) error("Disconnecting train");
03603
03604 reverse_train_direction:
03605 v->time_counter = 0;
03606 v->cur_speed = 0;
03607 v->subspeed = 0;
03608 ReverseTrainDirection(v);
03609 }
03610
03616 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03617 {
03618 TrackBits *trackbits = (TrackBits *)data;
03619
03620 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03621 if (Train::From(v)->track == TRACK_BIT_WORMHOLE) {
03622
03623 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03624 } else {
03625 *trackbits |= Train::From(v)->track;
03626 }
03627 }
03628
03629 return NULL;
03630 }
03631
03639 static void DeleteLastWagon(Train *v)
03640 {
03641 Train *first = v->First();
03642
03643
03644
03645
03646 Train *u = v;
03647 for (; v->Next() != NULL; v = v->Next()) u = v;
03648 u->SetNext(NULL);
03649
03650 if (first != v) {
03651
03652 TrainConsistChanged(first, false);
03653
03654
03655 if (first->track == TRACK_BIT_DEPOT) {
03656 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03657 }
03658 }
03659
03660
03661 TrackBits trackbits = v->track;
03662 TileIndex tile = v->tile;
03663 Owner owner = v->owner;
03664
03665 delete v;
03666 v = NULL;
03667
03668 if (trackbits == TRACK_BIT_WORMHOLE) {
03669
03670 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03671 }
03672
03673 Track track = TrackBitsToTrack(trackbits);
03674 if (HasReservedTracks(tile, trackbits)) {
03675 UnreserveRailTrack(tile, track);
03676
03677
03678 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03679 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03680
03681
03682 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03683 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03684 if (HasBit(remaining_trackbits, t)) {
03685 TryReserveRailTrack(tile, t);
03686 }
03687 }
03688 }
03689
03690
03691 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03692
03693
03694 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03695 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03696 } else {
03697 SetSignalsOnBothDir(tile, track, owner);
03698 }
03699 }
03700
03701 static void ChangeTrainDirRandomly(Train *v)
03702 {
03703 static const DirDiff delta[] = {
03704 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03705 };
03706
03707 do {
03708
03709 if (!(v->vehstatus & VS_HIDDEN)) {
03710 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03711 v->UpdateDeltaXY(v->direction);
03712 v->cur_image = v->GetImage(v->direction);
03713
03714
03715
03716 if (v->track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
03717 }
03718 } while ((v = v->Next()) != NULL);
03719 }
03720
03721 static bool HandleCrashedTrain(Train *v)
03722 {
03723 int state = ++v->crash_anim_pos;
03724
03725 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03726 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03727 }
03728
03729 uint32 r;
03730 if (state <= 200 && Chance16R(1, 7, r)) {
03731 int index = (r * 10 >> 16);
03732
03733 Vehicle *u = v;
03734 do {
03735 if (--index < 0) {
03736 r = Random();
03737
03738 CreateEffectVehicleRel(u,
03739 GB(r, 8, 3) + 2,
03740 GB(r, 16, 3) + 2,
03741 GB(r, 0, 3) + 5,
03742 EV_EXPLOSION_SMALL);
03743 break;
03744 }
03745 } while ((u = u->Next()) != NULL);
03746 }
03747
03748 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03749
03750 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03751 bool ret = v->Next() != NULL;
03752 DeleteLastWagon(v);
03753 return ret;
03754 }
03755
03756 return true;
03757 }
03758
03759 static void HandleBrokenTrain(Train *v)
03760 {
03761 if (v->breakdown_ctr != 1) {
03762 v->breakdown_ctr = 1;
03763 v->cur_speed = 0;
03764
03765 if (v->breakdowns_since_last_service != 255)
03766 v->breakdowns_since_last_service++;
03767
03768 v->MarkDirty();
03769 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03770 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
03771
03772 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
03773 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
03774 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
03775 }
03776
03777 if (!(v->vehstatus & VS_HIDDEN)) {
03778 EffectVehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
03779 if (u != NULL) u->animation_state = v->breakdown_delay * 2;
03780 }
03781 }
03782
03783 if (!(v->tick_counter & 3)) {
03784 if (!--v->breakdown_delay) {
03785 v->breakdown_ctr = 0;
03786 v->MarkDirty();
03787 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03788 }
03789 }
03790 }
03791
03793 static const uint16 _breakdown_speeds[16] = {
03794 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03795 };
03796
03797
03805 static bool TrainApproachingLineEnd(Train *v, bool signal)
03806 {
03807
03808 uint x = v->x_pos & 0xF;
03809 uint y = v->y_pos & 0xF;
03810
03811
03812
03813 switch (v->direction) {
03814 case DIR_N : x = ~x + ~y + 25; break;
03815 case DIR_NW: x = y;
03816 case DIR_NE: x = ~x + 16; break;
03817 case DIR_E : x = ~x + y + 9; break;
03818 case DIR_SE: x = y; break;
03819 case DIR_S : x = x + y - 7; break;
03820 case DIR_W : x = ~y + x + 9; break;
03821 default: break;
03822 }
03823
03824
03825 if (!signal && x + (v->tcache.cached_veh_length + 1) / 2 >= TILE_SIZE) {
03826
03827 v->cur_speed = 0;
03828 ReverseTrainDirection(v);
03829 return false;
03830 }
03831
03832
03833 v->vehstatus |= VS_TRAIN_SLOWING;
03834 uint16 break_speed = _breakdown_speeds[x & 0xF];
03835 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03836
03837 return true;
03838 }
03839
03840
03846 static bool TrainCanLeaveTile(const Train *v)
03847 {
03848
03849 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03850
03851 TileIndex tile = v->tile;
03852
03853
03854 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03855 DiagDirection dir = GetTunnelBridgeDirection(tile);
03856 if (DiagDirToDir(dir) == v->direction) return false;
03857 }
03858
03859
03860 if (IsRailDepotTile(tile)) {
03861 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03862 if (DiagDirToDir(dir) == v->direction) return false;
03863 }
03864
03865 return true;
03866 }
03867
03868
03876 static TileIndex TrainApproachingCrossingTile(const Train *v)
03877 {
03878 assert(v->IsFrontEngine());
03879 assert(!(v->vehstatus & VS_CRASHED));
03880
03881 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03882
03883 DiagDirection dir = TrainExitDir(v->direction, v->track);
03884 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03885
03886
03887 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03888 !CheckCompatibleRail(v, tile)) {
03889 return INVALID_TILE;
03890 }
03891
03892 return tile;
03893 }
03894
03895
03902 static bool TrainCheckIfLineEnds(Train *v)
03903 {
03904
03905
03906 int t = v->breakdown_ctr;
03907 if (t > 1) {
03908 v->vehstatus |= VS_TRAIN_SLOWING;
03909
03910 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03911 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03912 } else {
03913 v->vehstatus &= ~VS_TRAIN_SLOWING;
03914 }
03915
03916 if (!TrainCanLeaveTile(v)) return true;
03917
03918
03919 DiagDirection dir = TrainExitDir(v->direction, v->track);
03920
03921 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03922
03923
03924 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03925 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03926
03927 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03928 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03929
03930
03931
03932
03933 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03934 if (_settings_game.pf.forbid_90_deg) {
03935 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03936 }
03937
03938
03939 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03940 return TrainApproachingLineEnd(v, false);
03941 }
03942
03943
03944 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
03945
03946
03947 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03948
03949 return true;
03950 }
03951
03952
03953 static bool TrainLocoHandler(Train *v, bool mode)
03954 {
03955
03956 if (v->vehstatus & VS_CRASHED) {
03957 return mode ? true : HandleCrashedTrain(v);
03958 }
03959
03960 if (v->force_proceed != 0) {
03961 ClrBit(v->flags, VRF_TRAIN_STUCK);
03962 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03963 }
03964
03965
03966 if (v->breakdown_ctr != 0) {
03967 if (v->breakdown_ctr <= 2) {
03968 HandleBrokenTrain(v);
03969 return true;
03970 }
03971 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
03972 }
03973
03974 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03975 ReverseTrainDirection(v);
03976 }
03977
03978
03979 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03980
03981 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03982 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03983 v->time_counter = 0;
03984 v->cur_speed = 0;
03985 v->subspeed = 0;
03986 ReverseTrainDirection(v);
03987 return true;
03988 }
03989
03990 v->HandleLoading(mode);
03991
03992 if (v->current_order.IsType(OT_LOADING)) return true;
03993
03994 if (CheckTrainStayInDepot(v)) return true;
03995
03996 if (!mode) HandleLocomotiveSmokeCloud(v);
03997
03998
03999 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
04000 CheckNextTrainTile(v);
04001 }
04002
04003
04004 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
04005 ++v->time_counter;
04006
04007
04008 bool turn_around = v->time_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.wait_for_pbs_path < 255;
04009
04010 if (!turn_around && v->time_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == 0) return true;
04011 if (!TryPathReserve(v)) {
04012
04013 if (turn_around) ReverseTrainDirection(v);
04014
04015 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->time_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
04016
04017 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
04018 SetDParam(0, v->index);
04019 AddVehicleNewsItem(
04020 STR_NEWS_TRAIN_IS_STUCK,
04021 NS_ADVICE,
04022 v->index
04023 );
04024 }
04025 v->time_counter = 0;
04026 }
04027
04028 if (v->force_proceed == 0) return true;
04029 ClrBit(v->flags, VRF_TRAIN_STUCK);
04030 v->time_counter = 0;
04031 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04032 }
04033 }
04034
04035 if (v->current_order.IsType(OT_LEAVESTATION)) {
04036 v->current_order.Free();
04037 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04038 return true;
04039 }
04040
04041 int j = UpdateTrainSpeed(v);
04042
04043
04044 if (v->cur_speed == 0 && v->tcache.last_speed == 0 && (v->vehstatus & VS_STOPPED)) {
04045
04046 v->force_proceed = 0;
04047 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04048 }
04049
04050 int adv_spd = (v->direction & 1) ? 192 : 256;
04051 if (j < adv_spd) {
04052
04053 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04054 } else {
04055 TrainCheckIfLineEnds(v);
04056
04057 for (;;) {
04058 j -= adv_spd;
04059 TrainController(v, NULL);
04060
04061 if (CheckTrainCollision(v)) break;
04062
04063 adv_spd = (v->direction & 1) ? 192 : 256;
04064
04065
04066 if (j < adv_spd || v->cur_speed == 0) break;
04067
04068 OrderType order_type = v->current_order.GetType();
04069
04070 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
04071 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
04072 IsTileType(v->tile, MP_STATION) &&
04073 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
04074 ProcessOrders(v);
04075 }
04076 }
04077 SetLastSpeed(v, v->cur_speed);
04078 }
04079
04080 for (Train *u = v; u != NULL; u = u->Next()) {
04081 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04082
04083 u->UpdateViewport(false, false);
04084 }
04085
04086 if (v->progress == 0) v->progress = j;
04087
04088 return true;
04089 }
04090
04091
04092
04093 Money Train::GetRunningCost() const
04094 {
04095 Money cost = 0;
04096 const Train *v = this;
04097
04098 do {
04099 const Engine *e = Engine::Get(v->engine_type);
04100 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
04101
04102 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
04103 if (cost_factor == 0) continue;
04104
04105
04106 if (v->IsMultiheaded()) cost_factor /= 2;
04107
04108 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->grffile);
04109 } while ((v = v->GetNextVehicle()) != NULL);
04110
04111 return cost;
04112 }
04113
04114
04115 bool Train::Tick()
04116 {
04117 this->tick_counter++;
04118
04119 if (this->IsFrontEngine()) {
04120 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04121
04122 this->current_order_time++;
04123
04124 if (!TrainLocoHandler(this, false)) return false;
04125
04126 return TrainLocoHandler(this, true);
04127 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
04128
04129 if (++this->crash_anim_pos >= 4400) {
04130 delete this;
04131 return false;
04132 }
04133 }
04134
04135 return true;
04136 }
04137
04138 static void CheckIfTrainNeedsService(Train *v)
04139 {
04140 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04141 if (v->IsInDepot()) {
04142 VehicleServiceInDepot(v);
04143 return;
04144 }
04145
04146 uint max_penalty;
04147 switch (_settings_game.pf.pathfinder_for_trains) {
04148 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
04149 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
04150 default: NOT_REACHED();
04151 }
04152
04153 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
04154
04155 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
04156 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04157
04158
04159
04160 v->current_order.MakeDummy();
04161 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04162 }
04163 return;
04164 }
04165
04166 DepotID depot = GetDepotIndex(tfdd.tile);
04167
04168 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04169 v->current_order.GetDestination() != depot &&
04170 !Chance16(3, 16)) {
04171 return;
04172 }
04173
04174 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
04175 v->dest_tile = tfdd.tile;
04176 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04177 }
04178
04179 void Train::OnNewDay()
04180 {
04181 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04182
04183 if (this->IsFrontEngine()) {
04184 CheckVehicleBreakdown(this);
04185 AgeVehicle(this);
04186
04187 CheckIfTrainNeedsService(this);
04188
04189 CheckOrders(this);
04190
04191
04192 if (this->current_order.IsType(OT_GOTO_STATION)) {
04193 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
04194 if (tile != INVALID_TILE) this->dest_tile = tile;
04195 }
04196
04197 if (this->running_ticks != 0) {
04198
04199 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04200
04201
04202 PayDailyTrackSharingFee(this);
04203
04204 this->profit_this_year -= cost.GetCost();
04205 this->running_ticks = 0;
04206
04207 SubtractMoneyFromCompanyFract(this->owner, cost);
04208
04209 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
04210 SetWindowClassesDirty(WC_TRAINS_LIST);
04211 }
04212 } else if (this->IsEngine()) {
04213
04214 AgeVehicle(this);
04215 }
04216 }
04217
04218 Trackdir Train::GetVehicleTrackdir() const
04219 {
04220 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
04221
04222 if (this->track == TRACK_BIT_DEPOT) {
04223
04224 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
04225 }
04226
04227 if (this->track == TRACK_BIT_WORMHOLE) {
04228
04229 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
04230 }
04231
04232 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
04233 }
04234
04240 void DeleteVisibleTrain(Train *v)
04241 {
04242 FreeTrainTrackReservation(v);
04243 TileIndex crossing = TrainApproachingCrossingTile(v);
04244
04245
04246 Train *u;
04247 Train *prev = v->Last();
04248 do {
04249 u = prev;
04250 prev = u->Previous();
04251 if (prev != NULL) prev->SetNext(NULL);
04252
04253
04254 TileIndex tile = u->tile;
04255 TrackBits trackbits = u->track;
04256
04257 delete u;
04258
04259 if (trackbits == TRACK_BIT_WORMHOLE) {
04260
04261 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
04262 }
04263
04264 Track track = TrackBitsToTrack(trackbits);
04265 if (HasReservedTracks(tile, trackbits)) UnreserveRailTrack(tile, track);
04266 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
04267
04268
04269 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
04270 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, GetTileOwner(tile));
04271 } else {
04272 SetSignalsOnBothDir(tile, track, GetTileOwner(tile));
04273 }
04274 } while (prev != NULL);
04275
04276 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
04277 }