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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
00770 if (w->tile == tile && w->IsFreeWagon() &&
00771 w->engine_type == engine &&
00772 !(w->vehstatus & VS_CRASHED)) {
00773 DoCommand(0, v->index | (w->Last()->index << 16), 1, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00774 break;
00775 }
00776 }
00777 }
00778
00779 return value;
00780 }
00781
00783 static void NormalizeTrainVehInDepot(const Train *u)
00784 {
00785 const Train *v;
00786 FOR_ALL_TRAINS(v) {
00787 if (v->IsFreeWagon() && v->tile == u->tile &&
00788 v->track == TRACK_BIT_DEPOT) {
00789 if (CmdFailed(DoCommand(0, v->index | (u->index << 16), 1, DC_EXEC,
00790 CMD_MOVE_RAIL_VEHICLE)))
00791 break;
00792 }
00793 }
00794 }
00795
00796 static void AddRearEngineToMultiheadedTrain(Train *v)
00797 {
00798 Train *u = new Train();
00799 v->value >>= 1;
00800 u->value = v->value;
00801 u->direction = v->direction;
00802 u->owner = v->owner;
00803 u->tile = v->tile;
00804 u->x_pos = v->x_pos;
00805 u->y_pos = v->y_pos;
00806 u->z_pos = v->z_pos;
00807 u->track = TRACK_BIT_DEPOT;
00808 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00809
00810 u->spritenum = v->spritenum + 1;
00811 u->cargo_type = v->cargo_type;
00812 u->cargo_subtype = v->cargo_subtype;
00813 u->cargo_cap = v->cargo_cap;
00814 u->railtype = v->railtype;
00815 u->engine_type = v->engine_type;
00816 u->build_year = v->build_year;
00817 u->cur_image = SPR_IMG_QUERY;
00818 u->random_bits = VehicleRandomBits();
00819 v->SetMultiheaded();
00820 u->SetMultiheaded();
00821 v->SetNext(u);
00822 VehicleMove(u, false);
00823
00824
00825 v->other_multiheaded_part = u;
00826 u->other_multiheaded_part = v;
00827 }
00828
00837 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00838 {
00839
00840 if (!IsEngineBuildable(p1, VEH_TRAIN, _current_company)) return_cmd_error(STR_ERROR_RAIL_VEHICLE_NOT_AVAILABLE);
00841
00842 const Engine *e = Engine::Get(p1);
00843 const RailVehicleInfo *rvi = &e->u.rail;
00844 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00845
00846
00847 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00848
00849 if (flags & DC_QUERY_COST) return value;
00850
00851
00852
00853 if (!IsRailDepotTile(tile)) return CMD_ERROR;
00854 if (!CheckInfraUsageAllowed(GetTileOwner(tile), VEH_TRAIN)) return CMD_ERROR;
00855
00856 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(p1, tile, flags);
00857
00858 uint num_vehicles =
00859 (rvi->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1) +
00860 CountArticulatedParts(p1, false);
00861
00862
00863
00864 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00865
00866
00867 if (!Vehicle::CanAllocateItem(num_vehicles)) {
00868 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00869 }
00870
00871 UnitID unit_num = (flags & DC_AUTOREPLACE) ? 0 : GetFreeUnitNumber(VEH_TRAIN);
00872 if (unit_num > _settings_game.vehicle.max_trains) {
00873 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00874 }
00875
00876 if (flags & DC_EXEC) {
00877 DiagDirection dir = GetRailDepotDirection(tile);
00878 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00879 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00880
00881 Train *v = new Train();
00882 v->unitnumber = unit_num;
00883 v->direction = DiagDirToDir(dir);
00884 v->tile = tile;
00885 v->owner = _current_company;
00886 v->x_pos = x;
00887 v->y_pos = y;
00888 v->z_pos = GetSlopeZ(x, y);
00889
00890 v->track = TRACK_BIT_DEPOT;
00891 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00892 v->spritenum = rvi->image_index;
00893 v->cargo_type = e->GetDefaultCargoType();
00894
00895 v->cargo_cap = rvi->capacity;
00896 v->max_speed = rvi->max_speed;
00897 v->value = value.GetCost();
00898 v->last_station_visited = INVALID_STATION;
00899
00900
00901 v->engine_type = p1;
00902 v->tcache.first_engine = INVALID_ENGINE;
00903
00904 v->reliability = e->reliability;
00905 v->reliability_spd_dec = e->reliability_spd_dec;
00906 v->max_age = e->GetLifeLengthInDays();
00907
00908 v->name = NULL;
00909 v->railtype = rvi->railtype;
00910 _new_vehicle_id = v->index;
00911
00912 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00913 v->date_of_last_service = _date;
00914 v->build_year = _cur_year;
00915 v->cur_image = SPR_IMG_QUERY;
00916 v->random_bits = VehicleRandomBits();
00917
00918
00919 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00920
00921 v->group_id = DEFAULT_GROUP;
00922
00923
00924 v->SetFrontEngine();
00925 v->SetEngine();
00926
00927 VehicleMove(v, false);
00928
00929 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00930 AddRearEngineToMultiheadedTrain(v);
00931 } else {
00932 AddArticulatedParts(v);
00933 }
00934
00935 TrainConsistChanged(v, false);
00936 UpdateTrainGroupID(v);
00937
00938 if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) {
00939 NormalizeTrainVehInDepot(v);
00940 }
00941
00942 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00943 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
00944 SetWindowDirty(WC_COMPANY, v->owner);
00945 if (IsLocalCompany()) {
00946 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00947 }
00948
00949 Company::Get(_current_company)->num_engines[p1]++;
00950
00951 CheckConsistencyOfArticulatedVehicle(v);
00952 }
00953
00954 return value;
00955 }
00956
00957
00958 bool Train::IsInDepot() const
00959 {
00960
00961 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00962
00963
00964 for (const Train *v = this; v != NULL; v = v->Next()) {
00965 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00966 }
00967
00968 return true;
00969 }
00970
00971 bool Train::IsStoppedInDepot() const
00972 {
00973
00974 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00975 return this->IsInDepot();
00976 }
00977
00978 static Train *FindGoodVehiclePos(const Train *src)
00979 {
00980 EngineID eng = src->engine_type;
00981 TileIndex tile = src->tile;
00982
00983 Train *dst;
00984 FOR_ALL_TRAINS(dst) {
00985 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00986
00987 Train *t = dst;
00988 while (t->engine_type == eng) {
00989 t = t->Next();
00990 if (t == NULL) return dst;
00991 }
00992 }
00993 }
00994
00995 return NULL;
00996 }
00997
00999 typedef SmallVector<Train *, 16> TrainList;
01000
01006 static void MakeTrainBackup(TrainList &list, Train *t)
01007 {
01008 for (; t != NULL; t = t->Next()) *list.Append() = t;
01009 }
01010
01015 static void RestoreTrainBackup(TrainList &list)
01016 {
01017
01018 if (list.Length() == 0) return;
01019
01020 Train *prev = NULL;
01021
01022 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
01023 Train *t = *iter;
01024 if (prev != NULL) {
01025 prev->SetNext(t);
01026 } else if (t->Previous() != NULL) {
01027
01028 t->Previous()->SetNext(NULL);
01029 }
01030 prev = t;
01031 }
01032 }
01033
01039 static void RemoveFromConsist(Train *part, bool chain = false)
01040 {
01041 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
01042
01043
01044
01045 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
01046
01047
01048 tail->SetNext(NULL);
01049 }
01050
01056 static void InsertInConsist(Train *dst, Train *chain)
01057 {
01058
01059 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
01060
01061 chain->Last()->SetNext(dst->Next());
01062 dst->SetNext(chain);
01063 }
01064
01070 static void NormaliseDualHeads(Train *t)
01071 {
01072 for (; t != NULL; t = t->GetNextVehicle()) {
01073 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
01074
01075
01076 Train *u;
01077 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
01078
01079 if (u == t->other_multiheaded_part) continue;
01080
01081
01082 RemoveFromConsist(t->other_multiheaded_part);
01083
01084 InsertInConsist(u, t->other_multiheaded_part);
01085 }
01086 }
01087
01092 static void NormaliseSubtypes(Train *chain)
01093 {
01094
01095 if (chain == NULL) return;
01096
01097
01098 assert(chain->Previous() == NULL);
01099
01100
01101 if (chain->IsWagon()) {
01102 chain->SetFreeWagon();
01103 } else {
01104 assert(chain->IsEngine());
01105 chain->SetFrontEngine();
01106 }
01107
01108
01109 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
01110 t->ClearFreeWagon();
01111 t->ClearFrontEngine();
01112 }
01113 }
01114
01124 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
01125 {
01126
01127
01128
01129 if ((src != NULL && src->IsEngine() ? 1 : 0) +
01130 (dst != NULL && dst->IsEngine() ? 1 : 0) -
01131 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
01132 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
01133 return CommandCost();
01134 }
01135
01136
01137
01138 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
01139
01140 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
01141 }
01142
01148 static CommandCost CheckTrainAttachment(Train *t)
01149 {
01150
01151 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
01152
01153
01154
01155 int allowed_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
01156
01157 Train *head = t;
01158 Train *prev = t;
01159
01160
01161 t = t->Next();
01162 allowed_len--;
01163 prev->SetNext(NULL);
01164
01165
01166 head->InvalidateNewGRFCache();
01167
01168 while (t != NULL) {
01169 Train *next = t->Next();
01170
01171
01172
01173 t->SetNext(NULL);
01174
01175
01176 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
01177 allowed_len--;
01178
01179
01180 EngineID first_engine = t->tcache.first_engine;
01181 t->tcache.first_engine = INVALID_ENGINE;
01182
01183
01184
01185 t->InvalidateNewGRFCache();
01186
01187 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
01188
01189
01190 t->tcache.first_engine = first_engine;
01191
01192
01193 t->InvalidateNewGRFCache();
01194 head->InvalidateNewGRFCache();
01195
01196 if (callback != CALLBACK_FAILED) {
01197
01198 StringID error = STR_NULL;
01199
01200 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
01201 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(head->engine_type), 0xD000 + callback);
01202
01203 if (error != STR_NULL) return_cmd_error(error);
01204 }
01205 }
01206
01207
01208 prev->SetNext(t);
01209 prev = t;
01210 t = next;
01211 }
01212
01213 if (allowed_len <= 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01214 return CommandCost();
01215 }
01216
01226 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src)
01227 {
01228
01229 CommandCost ret = CheckTrainAttachment(src);
01230 if (ret.Failed()) return ret;
01231 ret = CheckTrainAttachment(dst);
01232 if (ret.Failed()) return ret;
01233
01234
01235 return CheckNewTrain(original_dst, dst, original_src, src);
01236 }
01237
01246 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01247 {
01248
01249 if (*src_head == *dst_head) {
01250
01251
01252 *dst_head = NULL;
01253 } else if (*dst_head == NULL) {
01254
01255
01256 *dst_head = src;
01257 }
01258
01259 if (src == *src_head) {
01260
01261
01262
01263
01264
01265
01266 *src_head = move_chain ? NULL :
01267 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01268 }
01269
01270
01271
01272
01273 RemoveFromConsist(src, move_chain);
01274 if (*dst_head != src) InsertInConsist(dst, src);
01275
01276
01277
01278 NormaliseDualHeads(*src_head);
01279 NormaliseDualHeads(*dst_head);
01280 }
01281
01287 static void NormaliseTrainHead(Train *head)
01288 {
01289
01290 if (head == NULL) return;
01291
01292
01293 TrainConsistChanged(head, false);
01294 UpdateTrainGroupID(head);
01295
01296
01297 if (!head->IsFrontEngine()) return;
01298
01299
01300 SetWindowDirty(WC_VEHICLE_REFIT, head->index);
01301 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, VVW_WIDGET_REFIT_VEH);
01302
01303
01304 if (head->unitnumber != 0) return;
01305 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01306 }
01307
01319 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01320 {
01321 VehicleID s = GB(p1, 0, 16);
01322 VehicleID d = GB(p1, 16, 16);
01323 bool move_chain = HasBit(p2, 0);
01324
01325 Train *src = Train::GetIfValid(s);
01326 if (src == NULL || !CheckOwnership(src->owner)) return CMD_ERROR;
01327
01328
01329 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01330
01331
01332 Train *dst;
01333 if (d == INVALID_VEHICLE) {
01334 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01335 } else {
01336 dst = Train::GetIfValid(d);
01337 if (dst == NULL || !CheckOwnership(dst->owner)) return CMD_ERROR;
01338
01339
01340 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01341 }
01342
01343
01344 src = src->GetFirstEnginePart();
01345 if (dst != NULL) {
01346 dst = dst->GetFirstEnginePart();
01347 }
01348
01349
01350 if (src == dst) return CommandCost();
01351
01352
01353 Train *src_head = src->First();
01354 Train *dst_head;
01355 if (dst != NULL) {
01356 dst_head = dst->First();
01357 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01358
01359 dst = dst->GetLastEnginePart();
01360 } else {
01361 dst_head = NULL;
01362 }
01363
01364 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01365
01366
01367 if (move_chain && src_head == dst_head) return CommandCost();
01368
01369
01370 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01371
01372
01373 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01374
01375
01376 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01377
01378
01379
01380 TrainList original_src;
01381 TrainList original_dst;
01382
01383 MakeTrainBackup(original_src, src_head);
01384 MakeTrainBackup(original_dst, dst_head);
01385
01386
01387
01388
01389 Train *original_src_head = src_head;
01390 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01391
01392
01393 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01394
01395 if ((flags & DC_AUTOREPLACE) == 0) {
01396
01397
01398
01399 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head);
01400 if (ret.Failed()) {
01401
01402 RestoreTrainBackup(original_src);
01403 RestoreTrainBackup(original_dst);
01404 return ret;
01405 }
01406 }
01407
01408
01409 if (flags & DC_EXEC) {
01410
01411 NormaliseSubtypes(src_head);
01412 NormaliseSubtypes(dst_head);
01413
01414
01415
01416
01417
01418
01419
01420
01421
01422
01423
01424
01425
01426
01427
01428
01429
01430
01431
01432
01433
01434 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01435
01436 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01437 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01438 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01439 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01440 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01441
01442
01443
01444
01445
01446
01447
01448
01449 if (dst_head != NULL ? dst_head != src : !src_head->IsFrontEngine()) {
01450 DecreaseGroupNumVehicle(src->group_id);
01451 }
01452
01453
01454
01455 DeleteVehicleOrders(src);
01456 RemoveVehicleFromGroup(src);
01457 src->unitnumber = 0;
01458 }
01459
01460
01461
01462 if (original_src_head != src && dst_head == src) {
01463 SetTrainGroupID(src, DEFAULT_GROUP);
01464 }
01465
01466
01467 NormaliseTrainHead(src_head);
01468 NormaliseTrainHead(dst_head);
01469
01470
01471 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01472 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01473 } else {
01474
01475 RestoreTrainBackup(original_src);
01476 RestoreTrainBackup(original_dst);
01477 }
01478
01479 return CommandCost();
01480 }
01481
01493 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01494 {
01495
01496 Window *w = NULL;
01497
01498 Train *v = Train::GetIfValid(p1);
01499 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
01500
01501
01502 bool sell_chain = HasBit(p2, 0);
01503
01504 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_SELL_DESTROYED_VEHICLE);
01505
01506 v = v->GetFirstEnginePart();
01507 Train *first = v->First();
01508
01509
01510 if (!first->IsStoppedInDepot()) {
01511 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01512 }
01513
01514 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01515
01516
01517
01518 TrainList original;
01519 MakeTrainBackup(original, first);
01520
01521
01522 Train *new_head = first;
01523 Train *sell_head = NULL;
01524
01525
01526 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01527
01528
01529 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head);
01530 if (ret.Failed()) {
01531
01532 RestoreTrainBackup(original);
01533 return ret;
01534 }
01535
01536 CommandCost cost(EXPENSES_NEW_VEHICLES);
01537 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01538
01539
01540 if (flags & DC_EXEC) {
01541
01542 NormaliseSubtypes(new_head);
01543
01544 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01545
01546
01547 new_head->orders.list = first->orders.list;
01548 new_head->AddToShared(first);
01549 DeleteVehicleOrders(first);
01550
01551
01552 new_head->CopyVehicleConfigAndStatistics(first);
01553 IncreaseGroupNumVehicle(new_head->group_id);
01554
01555
01556 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01557 }
01558
01559
01560 NormaliseTrainHead(new_head);
01561
01562
01563 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01564 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01565
01566
01567 delete sell_head;
01568 } else {
01569
01570 RestoreTrainBackup(original);
01571 }
01572
01573 return cost;
01574 }
01575
01576 void Train::UpdateDeltaXY(Direction direction)
01577 {
01578 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01579 static const uint32 _delta_xy_table[8] = {
01580 MKIT(3, 3, -1, -1),
01581 MKIT(3, 7, -1, -3),
01582 MKIT(3, 3, -1, -1),
01583 MKIT(7, 3, -3, -1),
01584 MKIT(3, 3, -1, -1),
01585 MKIT(3, 7, -1, -3),
01586 MKIT(3, 3, -1, -1),
01587 MKIT(7, 3, -3, -1),
01588 };
01589 #undef MKIT
01590
01591 uint32 x = _delta_xy_table[direction];
01592 this->x_offs = GB(x, 0, 8);
01593 this->y_offs = GB(x, 8, 8);
01594 this->x_extent = GB(x, 16, 8);
01595 this->y_extent = GB(x, 24, 8);
01596 this->z_extent = 6;
01597 }
01598
01599 static inline void SetLastSpeed(Train *v, int spd)
01600 {
01601 int old = v->tcache.last_speed;
01602 if (spd != old) {
01603 v->tcache.last_speed = spd;
01604 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01605 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01606 }
01607 }
01608 }
01609
01611 static void MarkTrainAsStuck(Train *v)
01612 {
01613 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01614
01615 SetBit(v->flags, VRF_TRAIN_STUCK);
01616
01617
01618 if (v->current_order.IsType(OT_LOADING)) return;
01619
01620 v->time_counter = 0;
01621
01622
01623 v->cur_speed = 0;
01624 v->subspeed = 0;
01625 SetLastSpeed(v, 0);
01626
01627 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01628 }
01629 }
01630
01631 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01632 {
01633 uint16 flag1 = *swap_flag1;
01634 uint16 flag2 = *swap_flag2;
01635
01636
01637 ClrBit(*swap_flag1, VRF_GOINGUP);
01638 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01639 ClrBit(*swap_flag2, VRF_GOINGUP);
01640 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01641
01642
01643 if (HasBit(flag1, VRF_GOINGUP)) {
01644 SetBit(*swap_flag2, VRF_GOINGDOWN);
01645 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01646 SetBit(*swap_flag2, VRF_GOINGUP);
01647 }
01648 if (HasBit(flag2, VRF_GOINGUP)) {
01649 SetBit(*swap_flag1, VRF_GOINGDOWN);
01650 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01651 SetBit(*swap_flag1, VRF_GOINGUP);
01652 }
01653 }
01654
01655 static void ReverseTrainSwapVeh(Train *v, int l, int r)
01656 {
01657 Train *a, *b;
01658
01659
01660 for (a = v; l != 0; l--) a = a->Next();
01661 for (b = v; r != 0; r--) b = b->Next();
01662
01663 if (a != b) {
01664
01665 {
01666 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01667 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01668 a->vehstatus = tmp;
01669 }
01670
01671 Swap(a->track, b->track);
01672 Swap(a->direction, b->direction);
01673
01674
01675 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01676 if (b->track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01677
01678 Swap(a->x_pos, b->x_pos);
01679 Swap(a->y_pos, b->y_pos);
01680 Swap(a->tile, b->tile);
01681 Swap(a->z_pos, b->z_pos);
01682
01683 SwapTrainFlags(&a->flags, &b->flags);
01684
01685
01686 a->UpdateViewport(true, true);
01687 b->UpdateViewport(true, true);
01688
01689
01690 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01691 if (b->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01692 } else {
01693 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01694 a->UpdateViewport(true, true);
01695
01696 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01697 }
01698
01699
01700 TrainPowerChanged(v);
01701 }
01702
01703
01709 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01710 {
01711 return (v->type == VEH_TRAIN) ? v : NULL;
01712 }
01713
01714
01721 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01722 {
01723 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01724
01725 Train *t = Train::From(v);
01726 if (!t->IsFrontEngine()) return NULL;
01727
01728 TileIndex tile = *(TileIndex *)data;
01729
01730 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01731
01732 return t;
01733 }
01734
01735
01742 static bool TrainApproachingCrossing(TileIndex tile)
01743 {
01744 assert(IsLevelCrossingTile(tile));
01745
01746 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01747 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01748
01749 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01750
01751 dir = ReverseDiagDir(dir);
01752 tile_from = tile + TileOffsByDiagDir(dir);
01753
01754 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01755 }
01756
01757
01764 void UpdateLevelCrossing(TileIndex tile, bool sound)
01765 {
01766 assert(IsLevelCrossingTile(tile));
01767
01768
01769 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01770
01771 if (new_state != IsCrossingBarred(tile)) {
01772 if (new_state && sound) {
01773 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01774 }
01775 SetCrossingBarred(tile, new_state);
01776 MarkTileDirtyByTile(tile);
01777 }
01778 }
01779
01780
01786 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01787 {
01788 if (!IsCrossingBarred(tile)) {
01789 BarCrossing(tile);
01790 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01791 MarkTileDirtyByTile(tile);
01792 }
01793 }
01794
01795
01801 static void AdvanceWagonsBeforeSwap(Train *v)
01802 {
01803 Train *base = v;
01804 Train *first = base;
01805 Train *last = v->Last();
01806 uint length = CountVehiclesInChain(v);
01807
01808 while (length > 2) {
01809 last = last->Previous();
01810 first = first->Next();
01811
01812 int differential = base->tcache.cached_veh_length - last->tcache.cached_veh_length;
01813
01814
01815
01816 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01817
01818 base = first;
01819 length -= 2;
01820 }
01821 }
01822
01823
01829 static void AdvanceWagonsAfterSwap(Train *v)
01830 {
01831
01832 Train *dep = v;
01833 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01834 dep = dep->Next();
01835 }
01836
01837 Train *leave = dep->Next();
01838
01839 if (leave != NULL) {
01840
01841 int d = TicksToLeaveDepot(dep);
01842
01843 if (d <= 0) {
01844 leave->vehstatus &= ~VS_HIDDEN;
01845 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01846 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01847 }
01848 } else {
01849 dep = NULL;
01850 }
01851
01852 Train *base = v;
01853 Train *first = base;
01854 Train *last = v->Last();
01855 uint length = CountVehiclesInChain(v);
01856
01857
01858
01859 bool nomove = (dep == NULL);
01860
01861 while (length > 2) {
01862
01863
01864 if (base == dep) break;
01865
01866
01867 if (last == dep) nomove = true;
01868
01869 last = last->Previous();
01870 first = first->Next();
01871
01872 int differential = last->tcache.cached_veh_length - base->tcache.cached_veh_length;
01873
01874
01875 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01876
01877 base = first;
01878 length -= 2;
01879 }
01880 }
01881
01882
01883 static void ReverseTrainDirection(Train *v)
01884 {
01885 if (IsRailDepotTile(v->tile)) {
01886 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01887 }
01888
01889
01890 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01891
01892
01893 TileIndex crossing = TrainApproachingCrossingTile(v);
01894
01895
01896 int r = CountVehiclesInChain(v) - 1;
01897
01898 AdvanceWagonsBeforeSwap(v);
01899
01900
01901 int l = 0;
01902 do {
01903 ReverseTrainSwapVeh(v, l++, r--);
01904 } while (l <= r);
01905
01906 AdvanceWagonsAfterSwap(v);
01907
01908 if (IsRailDepotTile(v->tile)) {
01909 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01910 }
01911
01912 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01913
01914 ClrBit(v->flags, VRF_REVERSING);
01915
01916
01917 TrainConsistChanged(v, true);
01918
01919
01920 for (Vehicle *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01921
01922
01923 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01924
01925
01926 crossing = TrainApproachingCrossingTile(v);
01927 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01928
01929
01930 if (v->track == TRACK_BIT_DEPOT) {
01931
01932 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01933 ClrBit(v->flags, VRF_TRAIN_STUCK);
01934 return;
01935 }
01936
01937
01938
01939 DiagDirection dir = TrainExitDir(v->direction, v->track);
01940 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01941
01942 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01943
01944
01945 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01946 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01947 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01948
01949 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01950 if (TryPathReserve(v, false, first_tile_okay)) {
01951
01952 CheckNextTrainTile(v);
01953 } else if (v->current_order.GetType() != OT_LOADING) {
01954
01955 MarkTrainAsStuck(v);
01956 }
01957 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01958
01959 ClrBit(v->flags, VRF_TRAIN_STUCK);
01960 v->time_counter = 0;
01961 }
01962 }
01963
01972 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01973 {
01974 Train *v = Train::GetIfValid(p1);
01975 if (v == NULL || !CheckVehicleControlAllowed(v)) return CMD_ERROR;
01976
01977 if (p2 != 0) {
01978
01979
01980 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01981 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01982 }
01983
01984 Train *front = v->First();
01985
01986 if (!front->IsStoppedInDepot()) {
01987 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01988 }
01989
01990 if (flags & DC_EXEC) {
01991 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01992 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
01993 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
01994
01995 v->force_proceed = 0;
01996 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01997 }
01998 } else {
01999
02000 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
02001
02002 if (flags & DC_EXEC) {
02003
02004 if (v->current_order.IsType(OT_LOADING)) {
02005 const Vehicle *last = v;
02006 while (last->Next() != NULL) last = last->Next();
02007
02008
02009 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
02010 v->LeaveStation();
02011 }
02012 }
02013
02014
02015 v->force_proceed = 0;
02016 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02017
02018 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL && v->cur_speed != 0) {
02019 ToggleBit(v->flags, VRF_REVERSING);
02020 } else {
02021 v->cur_speed = 0;
02022 SetLastSpeed(v, 0);
02023 HideFillingPercent(&v->fill_percent_te_id);
02024 ReverseTrainDirection(v);
02025 }
02026 }
02027 }
02028 return CommandCost();
02029 }
02030
02039 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02040 {
02041 Train *t = Train::GetIfValid(p1);
02042 if (t == NULL || !CheckVehicleControlAllowed(t)) return CMD_ERROR;
02043
02044 if (flags & DC_EXEC) {
02045
02046
02047
02048
02049
02050 t->force_proceed = t->force_proceed == 2 ? 0 : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? 1 : 2;
02051 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
02052 }
02053
02054 return CommandCost();
02055 }
02056
02068 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02069 {
02070 CargoID new_cid = GB(p2, 0, 8);
02071 byte new_subtype = GB(p2, 8, 8);
02072 bool only_this = HasBit(p2, 16);
02073
02074 Train *v = Train::GetIfValid(p1);
02075 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
02076
02077 if (!v->IsStoppedInDepot()) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02078 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_REFIT_DESTROYED_VEHICLE);
02079
02080
02081 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02082
02083 CommandCost cost = RefitVehicle(v, only_this, new_cid, new_subtype, flags);
02084
02085
02086 if (flags & DC_EXEC) {
02087 Train *front = v->First();
02088 TrainConsistChanged(front, false);
02089 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
02090 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
02091 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02092 } else {
02093 v->InvalidateNewGRFCacheOfChain();
02094 }
02095
02096 return cost;
02097 }
02098
02101 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
02102 {
02103 assert(!(v->vehstatus & VS_CRASHED));
02104
02105 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
02106
02107 PBSTileInfo origin = FollowTrainReservation(v);
02108 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
02109
02110 switch (_settings_game.pf.pathfinder_for_trains) {
02111 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
02112 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
02113
02114 default: NOT_REACHED();
02115 }
02116 }
02117
02118 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02119 {
02120 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
02121 if (tfdd.best_length == UINT_MAX) return false;
02122
02123 if (location != NULL) *location = tfdd.tile;
02124 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
02125 if (reverse != NULL) *reverse = tfdd.reverse;
02126
02127 return true;
02128 }
02129
02140 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02141 {
02142 if (p2 & DEPOT_MASS_SEND) {
02143
02144 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02145 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02146 }
02147
02148 Train *v = Train::GetIfValid(p1);
02149 if (v == NULL) return CMD_ERROR;
02150
02151 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02152 }
02153
02154 static const int8 _vehicle_smoke_pos[8] = {
02155 1, 1, 1, 0, -1, -1, -1, 0
02156 };
02157
02158 static void HandleLocomotiveSmokeCloud(const Train *v)
02159 {
02160 bool sound = false;
02161
02162 if ((v->vehstatus & VS_TRAIN_SLOWING) || v->cur_speed < 2) {
02163 return;
02164 }
02165
02166 const Train *u = v;
02167
02168 do {
02169 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02170 int effect_offset = GB(v->tcache.cached_vis_effect, 0, 4) - 8;
02171 byte effect_type = GB(v->tcache.cached_vis_effect, 4, 2);
02172 bool disable_effect = HasBit(v->tcache.cached_vis_effect, 6);
02173
02174
02175 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02176 disable_effect ||
02177 v->vehstatus & VS_HIDDEN) {
02178 continue;
02179 }
02180
02181
02182 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02183
02184
02185 if (!HasPowerOnRail(v->railtype, GetTileRailType(v->tile))) continue;
02186
02187 if (effect_type == 0) {
02188
02189 effect_type = rvi->engclass;
02190 } else {
02191 effect_type--;
02192 }
02193
02194 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02195 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02196
02197 if (HasBit(v->flags, VRF_REVERSE_DIRECTION)) {
02198 x = -x;
02199 y = -y;
02200 }
02201
02202 switch (effect_type) {
02203 case 0:
02204
02205 if (GB(v->tick_counter, 0, 4) == 0) {
02206 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02207 sound = true;
02208 }
02209 break;
02210
02211 case 1:
02212
02213 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02214 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02215 sound = true;
02216 }
02217 break;
02218
02219 case 2:
02220
02221 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02222 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02223 sound = true;
02224 }
02225 break;
02226
02227 default:
02228 break;
02229 }
02230 } while ((v = v->Next()) != NULL);
02231
02232 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02233 }
02234
02235 void Train::PlayLeaveStationSound() const
02236 {
02237 static const SoundFx sfx[] = {
02238 SND_04_TRAIN,
02239 SND_0A_TRAIN_HORN,
02240 SND_0A_TRAIN_HORN,
02241 SND_47_MAGLEV_2,
02242 SND_41_MAGLEV
02243 };
02244
02245 if (PlayVehicleSound(this, VSE_START)) return;
02246
02247 EngineID engtype = this->engine_type;
02248 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02249 }
02250
02252 static void CheckNextTrainTile(Train *v)
02253 {
02254
02255 if (_settings_game.pf.path_backoff_interval == 255) return;
02256
02257
02258 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->track == TRACK_BIT_DEPOT) return;
02259
02260 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02261
02262 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02263
02264 Trackdir td = v->GetVehicleTrackdir();
02265
02266
02267 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02268 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02269 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02270
02271 CFollowTrackRail ft(v);
02272 if (!ft.Follow(v->tile, td)) return;
02273
02274 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02275
02276 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02277 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02278
02279 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02280 if (_settings_game.pf.forbid_90_deg) {
02281 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02282 }
02283 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02284 }
02285 }
02286 }
02287 }
02288
02289 static bool CheckTrainStayInDepot(Train *v)
02290 {
02291
02292 for (const Train *u = v; u != NULL; u = u->Next()) {
02293 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02294 }
02295
02296
02297 if (v->tcache.cached_power == 0) {
02298 v->vehstatus |= VS_STOPPED;
02299 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02300 return true;
02301 }
02302
02303 SigSegState seg_state;
02304
02305 if (v->force_proceed == 0) {
02306
02307 if (++v->time_counter < 37) {
02308 SetWindowClassesDirty(WC_TRAINS_LIST);
02309 return true;
02310 }
02311
02312 v->time_counter = 0;
02313
02314 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02315 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02316
02317 SetWindowClassesDirty(WC_TRAINS_LIST);
02318 return true;
02319 }
02320 } else {
02321 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02322 }
02323
02324
02325 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02326
02327 if (HasDepotReservation(v->tile)) return true;
02328 SetDepotReservation(v->tile, true);
02329 VehicleEnterDepot(v);
02330 return true;
02331 }
02332
02333
02334 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == 0) {
02335
02336 SetWindowClassesDirty(WC_TRAINS_LIST);
02337 MarkTrainAsStuck(v);
02338 return true;
02339 }
02340
02341 SetDepotReservation(v->tile, true);
02342 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02343
02344 VehicleServiceInDepot(v);
02345 SetWindowClassesDirty(WC_TRAINS_LIST);
02346 v->PlayLeaveStationSound();
02347
02348 v->track = TRACK_BIT_X;
02349 if (v->direction & 2) v->track = TRACK_BIT_Y;
02350
02351 v->vehstatus &= ~VS_HIDDEN;
02352 v->cur_speed = 0;
02353
02354 v->UpdateDeltaXY(v->direction);
02355 v->cur_image = v->GetImage(v->direction);
02356 VehicleMove(v, false);
02357 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02358 UpdateTrainAcceleration(v);
02359 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02360
02361 return false;
02362 }
02363
02365 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02366 {
02367 DiagDirection dir = TrackdirToExitdir(track_dir);
02368
02369 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02370
02371 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02372 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02373
02374 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02375
02376 SetTunnelBridgeReservation(tile, false);
02377 SetTunnelBridgeReservation(end, false);
02378
02379 if (_settings_client.gui.show_track_reservation) {
02380 MarkTileDirtyByTile(tile);
02381 MarkTileDirtyByTile(end);
02382 }
02383 }
02384 }
02385 } else if (IsRailStationTile(tile)) {
02386 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02387
02388
02389 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02390 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02391 }
02392 } else {
02393
02394 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02395 }
02396 }
02397
02399 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02400 {
02401 assert(v->IsFrontEngine());
02402
02403 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02404 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02405 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02406 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02407
02408
02409 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02410
02411 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02412 while (ft.Follow(tile, td)) {
02413 tile = ft.m_new_tile;
02414 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02415 td = RemoveFirstTrackdir(&bits);
02416 assert(bits == TRACKDIR_BIT_NONE);
02417
02418 if (!IsValidTrackdir(td)) break;
02419
02420 if (IsTileType(tile, MP_RAILWAY)) {
02421 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02422
02423 UnreserveRailTrack(tile, TrackdirToTrack(td));
02424 break;
02425 }
02426 if (HasPbsSignalOnTrackdir(tile, td)) {
02427 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02428
02429 break;
02430 } else {
02431
02432 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02433 MarkTileDirtyByTile(tile);
02434 }
02435 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02436 break;
02437 }
02438 }
02439
02440
02441 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);
02442
02443 free_tile = true;
02444 }
02445 }
02446
02447 static const byte _initial_tile_subcoord[6][4][3] = {
02448 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02449 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02450 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02451 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02452 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02453 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02454 };
02455
02468 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02469 {
02470 switch (_settings_game.pf.pathfinder_for_trains) {
02471 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02472 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02473
02474 default: NOT_REACHED();
02475 }
02476 }
02477
02483 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02484 {
02485 PBSTileInfo origin = FollowTrainReservation(v);
02486
02487 CFollowTrackRail ft(v);
02488
02489 TileIndex tile = origin.tile;
02490 Trackdir cur_td = origin.trackdir;
02491 while (ft.Follow(tile, cur_td)) {
02492 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02493
02494 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02495 }
02496
02497 if (_settings_game.pf.forbid_90_deg) {
02498 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02499 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02500 }
02501
02502
02503 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02504 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02505
02506
02507
02508
02509
02510
02511 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02512
02513
02514
02515 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02516
02517
02518 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02519 if (enterdir) *enterdir = ft.m_exitdir;
02520 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02521 }
02522
02523 tile = ft.m_new_tile;
02524 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02525
02526 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02527 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02528 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02529
02530 return PBSTileInfo(tile, cur_td, true);
02531 }
02532
02533 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02534 }
02535
02536 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02537
02538 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02539 }
02540
02541
02542 tile = origin.tile;
02543 cur_td = origin.trackdir;
02544 TileIndex stopped = ft.m_old_tile;
02545 Trackdir stopped_td = ft.m_old_td;
02546 while (tile != stopped || cur_td != stopped_td) {
02547 if (!ft.Follow(tile, cur_td)) break;
02548
02549 if (_settings_game.pf.forbid_90_deg) {
02550 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02551 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02552 }
02553 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02554
02555 tile = ft.m_new_tile;
02556 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02557
02558 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02559 }
02560
02561
02562 return PBSTileInfo();
02563 }
02564
02575 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02576 {
02577 switch (_settings_game.pf.pathfinder_for_trains) {
02578 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02579 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02580
02581 default: NOT_REACHED();
02582 }
02583 }
02584
02586 class VehicleOrderSaver
02587 {
02588 private:
02589 Vehicle *v;
02590 Order old_order;
02591 TileIndex old_dest_tile;
02592 StationID old_last_station_visited;
02593 VehicleOrderID index;
02594
02595 public:
02596 VehicleOrderSaver(Vehicle *_v) :
02597 v(_v),
02598 old_order(_v->current_order),
02599 old_dest_tile(_v->dest_tile),
02600 old_last_station_visited(_v->last_station_visited),
02601 index(_v->cur_order_index)
02602 {
02603 }
02604
02605 ~VehicleOrderSaver()
02606 {
02607 this->v->current_order = this->old_order;
02608 this->v->dest_tile = this->old_dest_tile;
02609 this->v->last_station_visited = this->old_last_station_visited;
02610 }
02611
02617 bool SwitchToNextOrder(bool skip_first)
02618 {
02619 if (this->v->GetNumOrders() == 0) return false;
02620
02621 if (skip_first) ++this->index;
02622
02623 int conditional_depth = 0;
02624
02625 do {
02626
02627 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02628
02629 Order *order = this->v->GetOrder(this->index);
02630 assert(order != NULL);
02631
02632 switch (order->GetType()) {
02633 case OT_GOTO_DEPOT:
02634
02635 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02636 case OT_GOTO_STATION:
02637 case OT_GOTO_WAYPOINT:
02638 this->v->current_order = *order;
02639 UpdateOrderDest(this->v, order);
02640 return true;
02641 case OT_CONDITIONAL: {
02642 if (conditional_depth > this->v->GetNumOrders()) return false;
02643 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02644 if (next != INVALID_VEH_ORDER_ID) {
02645 conditional_depth++;
02646 this->index = next;
02647
02648 continue;
02649 }
02650 break;
02651 }
02652 default:
02653 break;
02654 }
02655
02656
02657 ++this->index;
02658 } while (this->index != this->v->cur_order_index);
02659
02660 return false;
02661 }
02662 };
02663
02664
02665 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02666 {
02667 Track best_track = INVALID_TRACK;
02668 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02669 bool changed_signal = false;
02670
02671 assert((tracks & ~TRACK_BIT_MASK) == 0);
02672
02673 if (got_reservation != NULL) *got_reservation = false;
02674
02675
02676 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02677
02678 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02679
02680
02681 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02682 Track track = FindFirstTrack(tracks);
02683
02684 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02685 do_track_reservation = true;
02686 changed_signal = true;
02687 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02688 } else if (!do_track_reservation) {
02689 return track;
02690 }
02691 best_track = track;
02692 }
02693
02694 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02695 DiagDirection dest_enterdir = enterdir;
02696 if (do_track_reservation) {
02697
02698
02699
02700 CheckIfTrainNeedsService(v);
02701 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02702
02703 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02704 if (res_dest.tile == INVALID_TILE) {
02705
02706 if (mark_stuck) MarkTrainAsStuck(v);
02707 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02708 return FindFirstTrack(tracks);
02709 }
02710 }
02711
02712
02713 VehicleOrderSaver orders(v);
02714
02715
02716
02717
02718
02719
02720
02721 if (v->current_order.IsType(OT_LEAVESTATION)) {
02722 orders.SwitchToNextOrder(false);
02723 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02724 v->current_order.IsType(OT_GOTO_STATION) ?
02725 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02726 v->tile == v->dest_tile))) {
02727 orders.SwitchToNextOrder(true);
02728 }
02729
02730 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02731
02732 bool path_not_found = false;
02733 TileIndex new_tile = res_dest.tile;
02734
02735 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02736 if (new_tile == tile) best_track = next_track;
02737
02738
02739 if (path_not_found) {
02740
02741 if (!HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02742
02743 SetBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02744
02745 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02746 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02747 SetDParam(0, v->index);
02748 AddVehicleNewsItem(
02749 STR_NEWS_TRAIN_IS_LOST,
02750 NS_ADVICE,
02751 v->index
02752 );
02753 }
02754 }
02755 } else {
02756
02757 if (HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02758
02759 ClrBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02760
02761 }
02762 }
02763 }
02764
02765
02766 if (!do_track_reservation) return best_track;
02767
02768
02769 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02770 if (mark_stuck) MarkTrainAsStuck(v);
02771 FreeTrainTrackReservation(v);
02772 return best_track;
02773 }
02774
02775
02776 if (res_dest.tile == INVALID_TILE) {
02777
02778 PBSTileInfo origin = FollowTrainReservation(v);
02779 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02780 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02781 best_track = FindFirstTrack(res);
02782 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02783 if (got_reservation != NULL) *got_reservation = true;
02784 if (changed_signal) MarkTileDirtyByTile(tile);
02785 } else {
02786 FreeTrainTrackReservation(v);
02787 if (mark_stuck) MarkTrainAsStuck(v);
02788 }
02789 return best_track;
02790 }
02791
02792 if (got_reservation != NULL) *got_reservation = true;
02793
02794
02795 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02796
02797 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02798 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02799 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02800 if (_settings_game.pf.forbid_90_deg) {
02801 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02802 }
02803
02804
02805 if (orders.SwitchToNextOrder(true)) {
02806 PBSTileInfo cur_dest;
02807 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
02808 if (cur_dest.tile != INVALID_TILE) {
02809 res_dest = cur_dest;
02810 if (res_dest.okay) continue;
02811
02812 FreeTrainTrackReservation(v);
02813 if (mark_stuck) MarkTrainAsStuck(v);
02814 if (got_reservation != NULL) *got_reservation = false;
02815 changed_signal = false;
02816 break;
02817 }
02818 }
02819
02820 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02821 FreeTrainTrackReservation(v);
02822 if (mark_stuck) MarkTrainAsStuck(v);
02823 if (got_reservation != NULL) *got_reservation = false;
02824 changed_signal = false;
02825 }
02826 break;
02827 }
02828
02829 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02830
02831 if (changed_signal) MarkTileDirtyByTile(tile);
02832
02833 return best_track;
02834 }
02835
02844 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02845 {
02846 assert(v->IsFrontEngine());
02847
02848
02849
02850
02851 if (v->track == TRACK_BIT_DEPOT) {
02852 if (HasDepotReservation(v->tile)) {
02853 if (mark_as_stuck) MarkTrainAsStuck(v);
02854 return false;
02855 } else {
02856
02857 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02858 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02859 }
02860 }
02861
02862
02863 DiagDirection dir = TrainExitDir(v->direction, v->track);
02864 TileIndex next_tile = TileAddByDiagDir(v->tile, dir);
02865 if (IsTileType(next_tile, MP_RAILWAY) && HasReservedTracks(next_tile, DiagdirReachesTracks(dir))) {
02866
02867 Trackdir td = FindFirstTrackdir(TrackBitsToTrackdirBits(GetReservedTrackbits(next_tile)) & DiagdirReachesTrackdirs(dir));
02868 if (HasSignalOnTrackdir(next_tile, td) && HasSignalOnTrackdir(next_tile, ReverseTrackdir(td)) &&
02869 !IsPbsSignal(GetSignalType(next_tile, TrackdirToTrack(td)))) {
02870
02871 if (mark_as_stuck) MarkTrainAsStuck(v);
02872 return false;
02873 }
02874 }
02875
02876 bool other_train = false;
02877 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02878
02879
02880
02881
02882
02883 if (other_train && v->tile != origin.tile) {
02884 if (mark_as_stuck) MarkTrainAsStuck(v);
02885 return false;
02886 }
02887
02888 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02889
02890 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02891 ClrBit(v->flags, VRF_TRAIN_STUCK);
02892 return true;
02893 }
02894
02895
02896 if (v->track == TRACK_BIT_DEPOT) {
02897 SetDepotReservation(v->tile, true);
02898 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02899 }
02900
02901 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02902 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02903 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02904
02905 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02906
02907 bool res_made = false;
02908 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02909
02910 if (!res_made) {
02911
02912 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02913 return false;
02914 }
02915
02916 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02917
02918
02919
02920
02921
02922 if (!v->current_order.IsType(OT_LOADING)) v->time_counter = 0;
02923 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02924 }
02925 ClrBit(v->flags, VRF_TRAIN_STUCK);
02926 return true;
02927 }
02928
02929
02930 static bool CheckReverseTrain(const Train *v)
02931 {
02932 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02933 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02934 !(v->direction & 1)) {
02935 return false;
02936 }
02937
02938 assert(v->track != TRACK_BIT_NONE);
02939
02940 switch (_settings_game.pf.pathfinder_for_trains) {
02941 case VPF_NPF: return NPFTrainCheckReverse(v);
02942 case VPF_YAPF: return YapfTrainCheckReverse(v);
02943
02944 default: NOT_REACHED();
02945 }
02946 }
02947
02948 TileIndex Train::GetOrderStationLocation(StationID station)
02949 {
02950 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02951
02952 const Station *st = Station::Get(station);
02953 if (!(st->facilities & FACIL_TRAIN)) {
02954
02955 this->IncrementOrderIndex();
02956 return 0;
02957 }
02958
02959 return st->xy;
02960 }
02961
02962 void Train::MarkDirty()
02963 {
02964 Vehicle *v = this;
02965 do {
02966 v->UpdateViewport(false, false);
02967 } while ((v = v->Next()) != NULL);
02968
02969
02970 TrainCargoChanged(this);
02971 UpdateTrainAcceleration(this);
02972 }
02973
02984 static int UpdateTrainSpeed(Train *v)
02985 {
02986 uint accel;
02987
02988 if ((v->vehstatus & VS_STOPPED) || HasBit(v->flags, VRF_REVERSING) || HasBit(v->flags, VRF_TRAIN_STUCK)) {
02989 switch (_settings_game.vehicle.train_acceleration_model) {
02990 default: NOT_REACHED();
02991 case TAM_ORIGINAL: accel = v->acceleration * -4; break;
02992 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_BRAKE); break;
02993 }
02994 } else {
02995 switch (_settings_game.vehicle.train_acceleration_model) {
02996 default: NOT_REACHED();
02997 case TAM_ORIGINAL: accel = v->acceleration * 2; break;
02998 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_ACCEL); break;
02999 }
03000 }
03001
03002 uint spd = v->subspeed + accel;
03003 v->subspeed = (byte)spd;
03004 {
03005 int tempmax = v->max_speed;
03006 if (v->cur_speed > v->max_speed)
03007 tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
03008 v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
03009 }
03010
03011
03012
03013
03014
03015
03016
03017
03018
03019
03020
03021
03022 int scaled_spd = spd * 3 >> 2;
03023
03024 scaled_spd += v->progress;
03025 v->progress = 0;
03026 return scaled_spd;
03027 }
03028
03029 static void TrainEnterStation(Train *v, StationID station)
03030 {
03031 v->last_station_visited = station;
03032
03033
03034 Station *st = Station::Get(station);
03035 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
03036 st->had_vehicle_of_type |= HVOT_TRAIN;
03037 SetDParam(0, st->index);
03038 AddVehicleNewsItem(
03039 STR_NEWS_FIRST_TRAIN_ARRIVAL,
03040 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
03041 v->index,
03042 st->index
03043 );
03044 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
03045 }
03046
03047 v->BeginLoading();
03048
03049 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03050 }
03051
03052 static byte AfterSetTrainPos(Train *v, bool new_tile)
03053 {
03054 byte old_z = v->z_pos;
03055 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03056
03057 if (new_tile) {
03058 ClrBit(v->flags, VRF_GOINGUP);
03059 ClrBit(v->flags, VRF_GOINGDOWN);
03060
03061 if (v->track == TRACK_BIT_X || v->track == TRACK_BIT_Y) {
03062
03063
03064
03065
03066
03067 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03068 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03069
03070 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03071
03072 if (middle_z != v->z_pos) {
03073 SetBit(v->flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03074 }
03075 }
03076 }
03077
03078 VehicleMove(v, true);
03079 return old_z;
03080 }
03081
03082
03083 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
03084 {
03085 return
03086 IsInfraTileUsageAllowed(tile, v->owner, VEH_TRAIN) && (
03087 !v->IsFrontEngine() ||
03088 HasBit(v->compatible_railtypes, GetRailType(tile))
03089 );
03090 }
03091
03092 struct RailtypeSlowdownParams {
03093 byte small_turn, large_turn;
03094 byte z_up;
03095 byte z_down;
03096 };
03097
03098 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03099
03100 {256 / 4, 256 / 2, 256 / 4, 2},
03101 {256 / 4, 256 / 2, 256 / 4, 2},
03102 {256 / 4, 256 / 2, 256 / 4, 2},
03103 {0, 256 / 2, 256 / 4, 2},
03104 };
03105
03107 static inline void AffectSpeedByZChange(Train *v, byte old_z)
03108 {
03109 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03110
03111 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03112
03113 if (old_z < v->z_pos) {
03114 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03115 } else {
03116 uint16 spd = v->cur_speed + rsp->z_down;
03117 if (spd <= v->max_speed) v->cur_speed = spd;
03118 }
03119 }
03120
03121 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03122 {
03123 if (IsTileType(tile, MP_RAILWAY) &&
03124 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03125 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03126 Trackdir trackdir = FindFirstTrackdir(tracks);
03127 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03128
03129 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03130 }
03131 }
03132 return false;
03133 }
03134
03138 void Train::ReserveTrackUnderConsist() const
03139 {
03140 for (const Train *u = this; u != NULL; u = u->Next()) {
03141 switch (u->track) {
03142 case TRACK_BIT_WORMHOLE:
03143 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
03144 break;
03145 case TRACK_BIT_DEPOT:
03146 break;
03147 default:
03148 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
03149 break;
03150 }
03151 }
03152 }
03153
03154 uint Train::Crash(bool flooded)
03155 {
03156 uint pass = 0;
03157 if (this->IsFrontEngine()) {
03158 pass += 4;
03159
03160
03161
03162 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
03163 for (const Train *v = this; v != NULL; v = v->Next()) {
03164 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03165 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
03166
03167
03168 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
03169 }
03170 }
03171
03172
03173
03174 TileIndex crossing = TrainApproachingCrossingTile(this);
03175 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03176 }
03177
03178 pass += Vehicle::Crash(flooded);
03179
03180 this->crash_anim_pos = flooded ? 4000 : 1;
03181 return pass;
03182 }
03183
03190 static uint TrainCrashed(Train *v)
03191 {
03192 uint num = 0;
03193
03194
03195 if (!(v->vehstatus & VS_CRASHED)) {
03196 num = v->Crash();
03197 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03198 }
03199
03200
03201
03202 v->ReserveTrackUnderConsist();
03203
03204 return num;
03205 }
03206
03207 struct TrainCollideChecker {
03208 Train *v;
03209 uint num;
03210 };
03211
03212 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03213 {
03214 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03215
03216
03217 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
03218
03219
03220 Train *coll = Train::From(v)->First();
03221
03222
03223 if (coll == tcc->v) return NULL;
03224
03225 int x_diff = v->x_pos - tcc->v->x_pos;
03226 int y_diff = v->y_pos - tcc->v->y_pos;
03227
03228
03229
03230
03231
03232 uint hash = (y_diff + 7) | (x_diff + 7);
03233 if (hash & ~15) return NULL;
03234
03235
03236 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03237
03238
03239 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
03240
03241
03242 tcc->num += TrainCrashed(tcc->v);
03243 tcc->num += TrainCrashed(coll);
03244
03245 return NULL;
03246 }
03247
03254 static bool CheckTrainCollision(Train *v)
03255 {
03256
03257 if (v->track == TRACK_BIT_DEPOT) return false;
03258
03259 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03260
03261 TrainCollideChecker tcc;
03262 tcc.v = v;
03263 tcc.num = 0;
03264
03265
03266 if (v->track == TRACK_BIT_WORMHOLE) {
03267 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03268 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03269 } else {
03270 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03271 }
03272
03273
03274 if (tcc.num == 0) return false;
03275
03276 SetDParam(0, tcc.num);
03277 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
03278 NS_ACCIDENT,
03279 v->index
03280 );
03281
03282 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03283 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03284 return true;
03285 }
03286
03287 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03288 {
03289 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03290
03291 Train *t = Train::From(v);
03292 DiagDirection exitdir = *(DiagDirection *)data;
03293
03294
03295 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03296
03297 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03298
03299 return t;
03300 }
03301
03302 static void TrainController(Train *v, Vehicle *nomove)
03303 {
03304 Train *first = v->First();
03305 Train *prev;
03306 bool direction_changed = false;
03307
03308
03309 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03310 DiagDirection enterdir = DIAGDIR_BEGIN;
03311 bool update_signals_crossing = false;
03312
03313 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03314 if (v->track != TRACK_BIT_WORMHOLE) {
03315
03316 if (gp.old_tile == gp.new_tile) {
03317
03318 if (v->track == TRACK_BIT_DEPOT) {
03319
03320 gp.x = v->x_pos;
03321 gp.y = v->y_pos;
03322 } else {
03323
03324
03325
03326 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v)) return;
03327
03328 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03329 if (HasBit(r, VETS_CANNOT_ENTER)) {
03330 goto invalid_rail;
03331 }
03332 if (HasBit(r, VETS_ENTERED_STATION)) {
03333
03334 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03335 }
03336 }
03337 } else {
03338
03339
03340
03341 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03342 assert(IsValidDiagDirection(enterdir));
03343
03344
03345
03346 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03347 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03348
03349 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03350 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03351
03352 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03353 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03354
03355
03356 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03357 }
03358
03359 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03360
03361
03362
03363 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03364
03365 TrackBits chosen_track;
03366 if (prev == NULL) {
03367
03368
03369 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03370 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03371
03372 if (v->force_proceed != 0 && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03373
03374
03375
03376
03377 Trackdir dir = FindFirstTrackdir(trackdirbits);
03378 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03379 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03380
03381
03382 v->force_proceed--;
03383 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03384 }
03385 }
03386
03387
03388 if ((red_signals & chosen_track) && v->force_proceed == 0) {
03389
03390 Trackdir i = FindFirstTrackdir(trackdirbits);
03391
03392
03393 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return;
03394
03395 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03396 v->cur_speed = 0;
03397 v->subspeed = 0;
03398 v->progress = 255 - 100;
03399 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->time_counter < _settings_game.pf.wait_oneway_signal * 20) return;
03400 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03401 v->cur_speed = 0;
03402 v->subspeed = 0;
03403 v->progress = 255 - 10;
03404 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->time_counter < _settings_game.pf.wait_twoway_signal * 73) {
03405 DiagDirection exitdir = TrackdirToExitdir(i);
03406 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03407
03408 exitdir = ReverseDiagDir(exitdir);
03409
03410
03411 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return;
03412 }
03413 }
03414
03415
03416
03417 if (_settings_game.pf.wait_for_pbs_path == 255 && UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03418 v->time_counter = 0;
03419 return;
03420 }
03421 goto reverse_train_direction;
03422 } else {
03423 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03424 }
03425 } else {
03426
03427 if (prev->tile == gp.new_tile) {
03428
03429 if (prev->track == TRACK_BIT_WORMHOLE) {
03430
03431
03432 assert(IsTunnel(prev->tile));
03433 chosen_track = bits;
03434 } else {
03435 chosen_track = prev->track;
03436 }
03437 } else {
03438
03439
03440
03441
03442
03443
03444
03445 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03446 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03447 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03448 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03449 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03450 };
03451 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03452 assert(IsValidDiagDirection(exitdir));
03453 chosen_track = _connecting_track[enterdir][exitdir];
03454 }
03455 chosen_track &= bits;
03456 }
03457
03458
03459 assert(
03460 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03461 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03462 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03463
03464
03465 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03466 gp.x = (gp.x & ~0xF) | b[0];
03467 gp.y = (gp.y & ~0xF) | b[1];
03468 Direction chosen_dir = (Direction)b[2];
03469
03470
03471 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03472 if (HasBit(r, VETS_CANNOT_ENTER)) {
03473 goto invalid_rail;
03474 }
03475
03476 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03477 Track track = FindFirstTrack(chosen_track);
03478 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03479 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03480 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03481 MarkTileDirtyByTile(gp.new_tile);
03482 }
03483
03484
03485 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03486
03487 v->tile = gp.new_tile;
03488
03489 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03490 TrainPowerChanged(v->First());
03491 }
03492
03493 v->track = chosen_track;
03494 assert(v->track);
03495 }
03496
03497
03498
03499 update_signals_crossing = true;
03500
03501 if (chosen_dir != v->direction) {
03502 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == TAM_ORIGINAL) {
03503 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03504 DirDiff diff = DirDifference(v->direction, chosen_dir);
03505 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03506 }
03507 direction_changed = true;
03508 v->direction = chosen_dir;
03509 }
03510
03511 if (v->IsFrontEngine()) {
03512 v->time_counter = 0;
03513
03514
03515 TileIndex crossing = TrainApproachingCrossingTile(v);
03516 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03517
03518
03519 CheckNextTrainTile(v);
03520 }
03521
03522 if (HasBit(r, VETS_ENTERED_STATION)) {
03523
03524 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03525 }
03526 }
03527 } else {
03528
03529
03530
03531 if (!(v->vehstatus & VS_HIDDEN)) {
03532 v->cur_speed =
03533 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03534 }
03535
03536 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03537
03538 if (v->IsFrontEngine()) {
03539 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03540 CheckNextTrainTile(v);
03541 }
03542 } else {
03543 v->x_pos = gp.x;
03544 v->y_pos = gp.y;
03545 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03546 continue;
03547 }
03548 }
03549
03550
03551 v->UpdateDeltaXY(v->direction);
03552
03553 v->x_pos = gp.x;
03554 v->y_pos = gp.y;
03555
03556
03557 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03558
03559 if (prev == NULL) {
03560
03561 AffectSpeedByZChange(v, old_z);
03562 }
03563
03564 if (update_signals_crossing) {
03565 if (v->IsFrontEngine()) {
03566 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03567
03568
03569
03570
03571
03572
03573
03574
03575 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03576 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03577 !TryPathReserve(v)) {
03578 MarkTrainAsStuck(v);
03579 }
03580 }
03581 }
03582
03583
03584
03585 if (v->Next() == NULL) {
03586 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03587 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03588 }
03589 }
03590
03591
03592 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03593 }
03594
03595 if (direction_changed) first->tcache.cached_max_curve_speed = GetTrainCurveSpeedLimit(first);
03596
03597 return;
03598
03599 invalid_rail:
03600
03601 if (prev != NULL) error("Disconnecting train");
03602
03603 reverse_train_direction:
03604 v->time_counter = 0;
03605 v->cur_speed = 0;
03606 v->subspeed = 0;
03607 ReverseTrainDirection(v);
03608 }
03609
03615 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03616 {
03617 TrackBits *trackbits = (TrackBits *)data;
03618
03619 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03620 if (Train::From(v)->track == TRACK_BIT_WORMHOLE) {
03621
03622 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03623 } else {
03624 *trackbits |= Train::From(v)->track;
03625 }
03626 }
03627
03628 return NULL;
03629 }
03630
03638 static void DeleteLastWagon(Train *v)
03639 {
03640 Train *first = v->First();
03641
03642
03643
03644
03645 Train *u = v;
03646 for (; v->Next() != NULL; v = v->Next()) u = v;
03647 u->SetNext(NULL);
03648
03649 if (first != v) {
03650
03651 TrainConsistChanged(first, false);
03652
03653
03654 if (first->track == TRACK_BIT_DEPOT) {
03655 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03656 }
03657 }
03658
03659
03660 TrackBits trackbits = v->track;
03661 TileIndex tile = v->tile;
03662 Owner owner = v->owner;
03663
03664 delete v;
03665 v = NULL;
03666
03667 if (trackbits == TRACK_BIT_WORMHOLE) {
03668
03669 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03670 }
03671
03672 Track track = TrackBitsToTrack(trackbits);
03673 if (HasReservedTracks(tile, trackbits)) {
03674 UnreserveRailTrack(tile, track);
03675
03676
03677 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03678 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03679
03680
03681 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03682 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03683 if (HasBit(remaining_trackbits, t)) {
03684 TryReserveRailTrack(tile, t);
03685 }
03686 }
03687 }
03688
03689
03690 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03691
03692
03693 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03694 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03695 } else {
03696 SetSignalsOnBothDir(tile, track, owner);
03697 }
03698 }
03699
03700 static void ChangeTrainDirRandomly(Train *v)
03701 {
03702 static const DirDiff delta[] = {
03703 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03704 };
03705
03706 do {
03707
03708 if (!(v->vehstatus & VS_HIDDEN)) {
03709 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03710 v->UpdateDeltaXY(v->direction);
03711 v->cur_image = v->GetImage(v->direction);
03712
03713
03714
03715 if (v->track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
03716 }
03717 } while ((v = v->Next()) != NULL);
03718 }
03719
03720 static bool HandleCrashedTrain(Train *v)
03721 {
03722 int state = ++v->crash_anim_pos;
03723
03724 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03725 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03726 }
03727
03728 uint32 r;
03729 if (state <= 200 && Chance16R(1, 7, r)) {
03730 int index = (r * 10 >> 16);
03731
03732 Vehicle *u = v;
03733 do {
03734 if (--index < 0) {
03735 r = Random();
03736
03737 CreateEffectVehicleRel(u,
03738 GB(r, 8, 3) + 2,
03739 GB(r, 16, 3) + 2,
03740 GB(r, 0, 3) + 5,
03741 EV_EXPLOSION_SMALL);
03742 break;
03743 }
03744 } while ((u = u->Next()) != NULL);
03745 }
03746
03747 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03748
03749 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03750 bool ret = v->Next() != NULL;
03751 DeleteLastWagon(v);
03752 return ret;
03753 }
03754
03755 return true;
03756 }
03757
03758 static void HandleBrokenTrain(Train *v)
03759 {
03760 if (v->breakdown_ctr != 1) {
03761 v->breakdown_ctr = 1;
03762 v->cur_speed = 0;
03763
03764 if (v->breakdowns_since_last_service != 255)
03765 v->breakdowns_since_last_service++;
03766
03767 v->MarkDirty();
03768 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03769 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
03770
03771 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
03772 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
03773 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
03774 }
03775
03776 if (!(v->vehstatus & VS_HIDDEN)) {
03777 EffectVehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
03778 if (u != NULL) u->animation_state = v->breakdown_delay * 2;
03779 }
03780 }
03781
03782 if (!(v->tick_counter & 3)) {
03783 if (!--v->breakdown_delay) {
03784 v->breakdown_ctr = 0;
03785 v->MarkDirty();
03786 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03787 }
03788 }
03789 }
03790
03792 static const uint16 _breakdown_speeds[16] = {
03793 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03794 };
03795
03796
03804 static bool TrainApproachingLineEnd(Train *v, bool signal)
03805 {
03806
03807 uint x = v->x_pos & 0xF;
03808 uint y = v->y_pos & 0xF;
03809
03810
03811
03812 switch (v->direction) {
03813 case DIR_N : x = ~x + ~y + 25; break;
03814 case DIR_NW: x = y;
03815 case DIR_NE: x = ~x + 16; break;
03816 case DIR_E : x = ~x + y + 9; break;
03817 case DIR_SE: x = y; break;
03818 case DIR_S : x = x + y - 7; break;
03819 case DIR_W : x = ~y + x + 9; break;
03820 default: break;
03821 }
03822
03823
03824 if (!signal && x + (v->tcache.cached_veh_length + 1) / 2 >= TILE_SIZE) {
03825
03826 v->cur_speed = 0;
03827 ReverseTrainDirection(v);
03828 return false;
03829 }
03830
03831
03832 v->vehstatus |= VS_TRAIN_SLOWING;
03833 uint16 break_speed = _breakdown_speeds[x & 0xF];
03834 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03835
03836 return true;
03837 }
03838
03839
03845 static bool TrainCanLeaveTile(const Train *v)
03846 {
03847
03848 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03849
03850 TileIndex tile = v->tile;
03851
03852
03853 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03854 DiagDirection dir = GetTunnelBridgeDirection(tile);
03855 if (DiagDirToDir(dir) == v->direction) return false;
03856 }
03857
03858
03859 if (IsRailDepotTile(tile)) {
03860 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03861 if (DiagDirToDir(dir) == v->direction) return false;
03862 }
03863
03864 return true;
03865 }
03866
03867
03875 static TileIndex TrainApproachingCrossingTile(const Train *v)
03876 {
03877 assert(v->IsFrontEngine());
03878 assert(!(v->vehstatus & VS_CRASHED));
03879
03880 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03881
03882 DiagDirection dir = TrainExitDir(v->direction, v->track);
03883 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03884
03885
03886 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03887 !CheckCompatibleRail(v, tile)) {
03888 return INVALID_TILE;
03889 }
03890
03891 return tile;
03892 }
03893
03894
03901 static bool TrainCheckIfLineEnds(Train *v)
03902 {
03903
03904
03905 int t = v->breakdown_ctr;
03906 if (t > 1) {
03907 v->vehstatus |= VS_TRAIN_SLOWING;
03908
03909 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03910 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03911 } else {
03912 v->vehstatus &= ~VS_TRAIN_SLOWING;
03913 }
03914
03915 if (!TrainCanLeaveTile(v)) return true;
03916
03917
03918 DiagDirection dir = TrainExitDir(v->direction, v->track);
03919
03920 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03921
03922
03923 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03924 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03925
03926 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03927 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03928
03929
03930
03931
03932 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03933 if (_settings_game.pf.forbid_90_deg) {
03934 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03935 }
03936
03937
03938 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03939 return TrainApproachingLineEnd(v, false);
03940 }
03941
03942
03943 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
03944
03945
03946 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03947
03948 return true;
03949 }
03950
03951
03952 static bool TrainLocoHandler(Train *v, bool mode)
03953 {
03954
03955 if (v->vehstatus & VS_CRASHED) {
03956 return mode ? true : HandleCrashedTrain(v);
03957 }
03958
03959 if (v->force_proceed != 0) {
03960 ClrBit(v->flags, VRF_TRAIN_STUCK);
03961 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03962 }
03963
03964
03965 if (v->breakdown_ctr != 0) {
03966 if (v->breakdown_ctr <= 2) {
03967 HandleBrokenTrain(v);
03968 return true;
03969 }
03970 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
03971 }
03972
03973 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03974 ReverseTrainDirection(v);
03975 }
03976
03977
03978 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03979
03980 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03981 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03982 v->time_counter = 0;
03983 v->cur_speed = 0;
03984 v->subspeed = 0;
03985 ReverseTrainDirection(v);
03986 return true;
03987 }
03988
03989 v->HandleLoading(mode);
03990
03991 if (v->current_order.IsType(OT_LOADING)) return true;
03992
03993 if (CheckTrainStayInDepot(v)) return true;
03994
03995 if (!mode) HandleLocomotiveSmokeCloud(v);
03996
03997
03998 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03999 CheckNextTrainTile(v);
04000 }
04001
04002
04003 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
04004 ++v->time_counter;
04005
04006
04007 bool turn_around = v->time_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.wait_for_pbs_path < 255;
04008
04009 if (!turn_around && v->time_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == 0) return true;
04010 if (!TryPathReserve(v)) {
04011
04012 if (turn_around) ReverseTrainDirection(v);
04013
04014 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->time_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
04015
04016 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
04017 SetDParam(0, v->index);
04018 AddVehicleNewsItem(
04019 STR_NEWS_TRAIN_IS_STUCK,
04020 NS_ADVICE,
04021 v->index
04022 );
04023 }
04024 v->time_counter = 0;
04025 }
04026
04027 if (v->force_proceed == 0) return true;
04028 ClrBit(v->flags, VRF_TRAIN_STUCK);
04029 v->time_counter = 0;
04030 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04031 }
04032 }
04033
04034 if (v->current_order.IsType(OT_LEAVESTATION)) {
04035 v->current_order.Free();
04036 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04037 return true;
04038 }
04039
04040 int j = UpdateTrainSpeed(v);
04041
04042
04043 if (v->cur_speed == 0 && v->tcache.last_speed == 0 && (v->vehstatus & VS_STOPPED)) {
04044
04045 v->force_proceed = 0;
04046 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04047 }
04048
04049 int adv_spd = (v->direction & 1) ? 192 : 256;
04050 if (j < adv_spd) {
04051
04052 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04053 } else {
04054 TrainCheckIfLineEnds(v);
04055
04056 for (;;) {
04057 j -= adv_spd;
04058 TrainController(v, NULL);
04059
04060 if (CheckTrainCollision(v)) break;
04061
04062 adv_spd = (v->direction & 1) ? 192 : 256;
04063
04064
04065 if (j < adv_spd || v->cur_speed == 0) break;
04066
04067 OrderType order_type = v->current_order.GetType();
04068
04069 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
04070 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
04071 IsTileType(v->tile, MP_STATION) &&
04072 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
04073 ProcessOrders(v);
04074 }
04075 }
04076 SetLastSpeed(v, v->cur_speed);
04077 }
04078
04079 for (Train *u = v; u != NULL; u = u->Next()) {
04080 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04081
04082 u->UpdateViewport(false, false);
04083 }
04084
04085 if (v->progress == 0) v->progress = j;
04086
04087 return true;
04088 }
04089
04090
04091
04092 Money Train::GetRunningCost() const
04093 {
04094 Money cost = 0;
04095 const Train *v = this;
04096
04097 do {
04098 const Engine *e = Engine::Get(v->engine_type);
04099 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
04100
04101 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
04102 if (cost_factor == 0) continue;
04103
04104
04105 if (v->IsMultiheaded()) cost_factor /= 2;
04106
04107 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->grffile);
04108 } while ((v = v->GetNextVehicle()) != NULL);
04109
04110 return cost;
04111 }
04112
04113
04114 bool Train::Tick()
04115 {
04116 this->tick_counter++;
04117
04118 if (this->IsFrontEngine()) {
04119 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04120
04121 this->current_order_time++;
04122
04123 if (!TrainLocoHandler(this, false)) return false;
04124
04125 return TrainLocoHandler(this, true);
04126 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
04127
04128 if (++this->crash_anim_pos >= 4400) {
04129 delete this;
04130 return false;
04131 }
04132 }
04133
04134 return true;
04135 }
04136
04137 static void CheckIfTrainNeedsService(Train *v)
04138 {
04139 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04140 if (v->IsInDepot()) {
04141 VehicleServiceInDepot(v);
04142 return;
04143 }
04144
04145 uint max_penalty;
04146 switch (_settings_game.pf.pathfinder_for_trains) {
04147 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
04148 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
04149 default: NOT_REACHED();
04150 }
04151
04152 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
04153
04154 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
04155 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04156
04157
04158
04159 v->current_order.MakeDummy();
04160 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04161 }
04162 return;
04163 }
04164
04165 DepotID depot = GetDepotIndex(tfdd.tile);
04166
04167 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04168 v->current_order.GetDestination() != depot &&
04169 !Chance16(3, 16)) {
04170 return;
04171 }
04172
04173 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
04174 v->dest_tile = tfdd.tile;
04175 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04176 }
04177
04178 void Train::OnNewDay()
04179 {
04180 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04181
04182 if (this->IsFrontEngine()) {
04183 CheckVehicleBreakdown(this);
04184 AgeVehicle(this);
04185
04186 CheckIfTrainNeedsService(this);
04187
04188 CheckOrders(this);
04189
04190
04191 if (this->current_order.IsType(OT_GOTO_STATION)) {
04192 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
04193 if (tile != INVALID_TILE) this->dest_tile = tile;
04194 }
04195
04196 if (this->running_ticks != 0) {
04197
04198 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04199
04200
04201 PayDailyTrackSharingFee(this);
04202
04203 this->profit_this_year -= cost.GetCost();
04204 this->running_ticks = 0;
04205
04206 SubtractMoneyFromCompanyFract(this->owner, cost);
04207
04208 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
04209 SetWindowClassesDirty(WC_TRAINS_LIST);
04210 }
04211 } else if (this->IsEngine()) {
04212
04213 AgeVehicle(this);
04214 }
04215 }
04216
04217 Trackdir Train::GetVehicleTrackdir() const
04218 {
04219 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
04220
04221 if (this->track == TRACK_BIT_DEPOT) {
04222
04223 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
04224 }
04225
04226 if (this->track == TRACK_BIT_WORMHOLE) {
04227
04228 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
04229 }
04230
04231 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
04232 }
04233
04239 void DeleteVisibleTrain(Train *v)
04240 {
04241 FreeTrainTrackReservation(v);
04242 TileIndex crossing = TrainApproachingCrossingTile(v);
04243
04244
04245 Train *u;
04246 Train *prev = v->Last();
04247 do {
04248 u = prev;
04249
04250 TileIndex tile = u->tile;
04251 TrackBits trackbits = u->track;
04252
04253 prev = u->Previous();
04254 delete u;
04255
04256 if (trackbits == TRACK_BIT_WORMHOLE) {
04257
04258 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
04259 }
04260
04261 Track track = TrackBitsToTrack(trackbits);
04262 if (HasReservedTracks(tile, trackbits)) UnreserveRailTrack(tile, track);
04263 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
04264
04265
04266 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
04267 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, GetTileOwner(tile));
04268 } else {
04269 SetSignalsOnBothDir(tile, track, GetTileOwner(tile));
04270 }
04271 } while (prev != NULL);
04272
04273 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
04274 }