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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 "news_func.h"
00019 #include "company_func.h"
00020 #include "vehicle_gui.h"
00021 #include "newgrf_engine.h"
00022 #include "newgrf_sound.h"
00023 #include "newgrf_text.h"
00024 #include "group.h"
00025 #include "table/sprites.h"
00026 #include "strings_func.h"
00027 #include "functions.h"
00028 #include "window_func.h"
00029 #include "vehicle_func.h"
00030 #include "sound_func.h"
00031 #include "autoreplace_gui.h"
00032 #include "ai/ai.hpp"
00033 #include "newgrf_station.h"
00034 #include "effectvehicle_func.h"
00035 #include "effectvehicle_base.h"
00036 #include "gamelog.h"
00037 #include "network/network.h"
00038 #include "spritecache.h"
00039 #include "core/random_func.hpp"
00040 #include "company_base.h"
00041 #include "engine_base.h"
00042 #include "engine_func.h"
00043 #include "newgrf.h"
00044
00045 #include "table/strings.h"
00046 #include "table/train_cmd.h"
00047
00048 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck);
00049 static bool TrainCheckIfLineEnds(Train *v);
00050 static void TrainController(Train *v, Vehicle *nomove);
00051 static TileIndex TrainApproachingCrossingTile(const Train *v);
00052 static void CheckIfTrainNeedsService(Train *v);
00053 static void CheckNextTrainTile(Train *v);
00054
00055 static const byte _vehicle_initial_x_fract[4] = {10, 8, 4, 8};
00056 static const byte _vehicle_initial_y_fract[4] = { 8, 4, 8, 10};
00057
00058
00066 static inline DiagDirection TrainExitDir(Direction direction, TrackBits track)
00067 {
00068 static const TrackBits state_dir_table[DIAGDIR_END] = { TRACK_BIT_RIGHT, TRACK_BIT_LOWER, TRACK_BIT_LEFT, TRACK_BIT_UPPER };
00069
00070 DiagDirection diagdir = DirToDiagDir(direction);
00071
00072
00073 if (!HasBit(direction, 0) && track != state_dir_table[diagdir]) {
00074 diagdir = ChangeDiagDir(diagdir, DIAGDIRDIFF_90LEFT);
00075 }
00076
00077 return diagdir;
00078 }
00079
00080
00085 byte FreightWagonMult(CargoID cargo)
00086 {
00087 if (!CargoSpec::Get(cargo)->is_freight) return 1;
00088 return _settings_game.vehicle.freight_trains;
00089 }
00090
00091
00095 void Train::PowerChanged()
00096 {
00097 assert(this->First() == this);
00098
00099 uint32 total_power = 0;
00100 uint32 max_te = 0;
00101 uint32 number_of_parts = 0;
00102
00103 for (const Train *u = this; u != NULL; u = u->Next()) {
00104 uint32 current_power = u->GetPower();
00105 total_power += current_power;
00106
00107
00108 if (current_power > 0) max_te += u->GetWeight() * u->GetTractiveEffort();
00109 total_power += u->GetPoweredPartPower(this);
00110 number_of_parts++;
00111 }
00112
00113 this->tcache.cached_axle_resistance = 60 * number_of_parts;
00114 this->tcache.cached_air_drag = 20 + 3 * number_of_parts;
00115
00116 max_te *= 10000;
00117 max_te /= 256;
00118 if (this->tcache.cached_power != total_power || this->tcache.cached_max_te != max_te) {
00119
00120 if (total_power == 0) this->vehstatus |= VS_STOPPED;
00121
00122 this->tcache.cached_power = total_power;
00123 this->tcache.cached_max_te = max_te;
00124 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00125 SetWindowWidgetDirty(WC_VEHICLE_VIEW, this->index, VVW_WIDGET_START_STOP_VEH);
00126 }
00127 }
00128
00129
00134 void Train::CargoChanged()
00135 {
00136 assert(this->First() == this);
00137 uint32 weight = 0;
00138
00139 for (Train *u = this; u != NULL; u = u->Next()) {
00140 uint32 current_weight = u->GetWeight();
00141 weight += current_weight;
00142 u->tcache.cached_slope_resistance = current_weight * 20 * _settings_game.vehicle.train_slope_steepness;
00143 }
00144
00145
00146 this->tcache.cached_weight = weight;
00147
00148
00149 this->PowerChanged();
00150 }
00151
00152
00157 static void RailVehicleLengthChanged(const Train *u)
00158 {
00159
00160 const Engine *engine = Engine::Get(u->engine_type);
00161 uint32 grfid = engine->grffile->grfid;
00162 GRFConfig *grfconfig = GetGRFConfig(grfid);
00163 if (GamelogGRFBugReverse(grfid, engine->internal_id) || !HasBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH)) {
00164 ShowNewGrfVehicleError(u->engine_type, STR_NEWGRF_BROKEN, STR_NEWGRF_BROKEN_VEHICLE_LENGTH, GBUG_VEH_LENGTH, true);
00165 }
00166 }
00167
00169 void CheckTrainsLengths()
00170 {
00171 const Train *v;
00172
00173 FOR_ALL_TRAINS(v) {
00174 if (v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00175 for (const Train *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00176 if (u->track != TRACK_BIT_DEPOT) {
00177 if ((w->track != TRACK_BIT_DEPOT &&
00178 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->tcache.cached_veh_length) ||
00179 (w->track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00180 SetDParam(0, v->index);
00181 SetDParam(1, v->owner);
00182 ShowErrorMessage(STR_BROKEN_VEHICLE_LENGTH, INVALID_STRING_ID, 0, 0, true);
00183
00184 if (!_networking) DoCommandP(0, PM_PAUSED_ERROR, 1, CMD_PAUSE);
00185 }
00186 }
00187 }
00188 }
00189 }
00190 }
00191
00198 void Train::ConsistChanged(bool same_length)
00199 {
00200 uint16 max_speed = UINT16_MAX;
00201
00202 assert(this->IsFrontEngine() || this->IsFreeWagon());
00203
00204 const RailVehicleInfo *rvi_v = RailVehInfo(this->engine_type);
00205 EngineID first_engine = this->IsFrontEngine() ? this->engine_type : INVALID_ENGINE;
00206 this->tcache.cached_total_length = 0;
00207 this->compatible_railtypes = RAILTYPES_NONE;
00208
00209 bool train_can_tilt = true;
00210
00211 for (Train *u = this; u != NULL; u = u->Next()) {
00212 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00213
00214
00215 assert(u->First() == this);
00216
00217
00218 u->tcache.first_engine = this == u ? INVALID_ENGINE : first_engine;
00219 u->railtype = rvi_u->railtype;
00220
00221 if (u->IsEngine()) first_engine = u->engine_type;
00222
00223
00224 u->tcache.user_def_data = rvi_u->user_def_data;
00225 this->InvalidateNewGRFCache();
00226 u->InvalidateNewGRFCache();
00227 }
00228
00229 for (Train *u = this; u != NULL; u = u->Next()) {
00230
00231 u->tcache.user_def_data = GetVehicleProperty(u, PROP_TRAIN_USER_DATA, u->tcache.user_def_data);
00232 this->InvalidateNewGRFCache();
00233 u->InvalidateNewGRFCache();
00234 }
00235
00236 for (Train *u = this; u != NULL; u = u->Next()) {
00237 const Engine *e_u = Engine::Get(u->engine_type);
00238 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00239
00240 if (!HasBit(e_u->info.misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00241
00242
00243 u->tcache.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->tcache.first_engine);
00244
00245
00246 u->colourmap = PAL_NONE;
00247
00248 if (rvi_u->visual_effect != 0) {
00249 u->tcache.cached_vis_effect = rvi_u->visual_effect;
00250 } else {
00251 if (u->IsWagon() || u->IsArticulatedPart()) {
00252
00253 u->tcache.cached_vis_effect = 0x40;
00254 } else if (rvi_u->engclass == 0) {
00255
00256 u->tcache.cached_vis_effect = 4;
00257 } else {
00258
00259 u->tcache.cached_vis_effect = 8;
00260 }
00261 }
00262
00263
00264 if (HasBit(e_u->info.callback_mask, CBM_TRAIN_WAGON_POWER)) {
00265 uint16 callback = GetVehicleCallback(CBID_TRAIN_WAGON_POWER, 0, 0, u->engine_type, u);
00266
00267 if (callback != CALLBACK_FAILED) u->tcache.cached_vis_effect = GB(callback, 0, 8);
00268 }
00269
00270 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00271 UsesWagonOverride(u) && !HasBit(u->tcache.cached_vis_effect, 7)) {
00272
00273 SetBit(u->flags, VRF_POWEREDWAGON);
00274 } else {
00275 ClrBit(u->flags, VRF_POWEREDWAGON);
00276 }
00277
00278 if (!u->IsArticulatedPart()) {
00279
00280
00281 if (rvi_u->power > 0) {
00282 this->compatible_railtypes |= GetRailTypeInfo(u->railtype)->powered_railtypes;
00283 }
00284
00285
00286
00287 if (HasBit(u->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00288 u->railtype = RAILTYPE_RAIL;
00289 u->compatible_railtypes |= RAILTYPES_RAIL;
00290 }
00291
00292
00293 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00294 uint16 speed = GetVehicleProperty(u, PROP_TRAIN_SPEED, rvi_u->max_speed);
00295 if (speed != 0) max_speed = min(speed, max_speed);
00296 }
00297 }
00298
00299 u->cargo_cap = GetVehicleCapacity(u);
00300
00301
00302 uint16 veh_len = CALLBACK_FAILED;
00303 if (HasBit(e_u->info.callback_mask, CBM_VEHICLE_LENGTH)) {
00304 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00305 }
00306 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00307 veh_len = 8 - Clamp(veh_len, 0, 7);
00308
00309
00310 if (same_length && veh_len != u->tcache.cached_veh_length) RailVehicleLengthChanged(u);
00311
00312
00313 if (!same_length) u->tcache.cached_veh_length = veh_len;
00314
00315 this->tcache.cached_total_length += u->tcache.cached_veh_length;
00316 this->InvalidateNewGRFCache();
00317 u->InvalidateNewGRFCache();
00318 }
00319
00320
00321 this->tcache.cached_max_speed = max_speed;
00322 this->tcache.cached_tilt = train_can_tilt;
00323 this->tcache.cached_max_curve_speed = this->GetCurveSpeedLimit();
00324
00325
00326 this->CargoChanged();
00327
00328 if (this->IsFrontEngine()) {
00329 this->UpdateAcceleration();
00330 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00331 }
00332 }
00333
00344 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length)
00345 {
00346 const Station *st = Station::Get(station_id);
00347 *station_ahead = st->GetPlatformLength(tile, DirToDiagDir(v->direction)) * TILE_SIZE;
00348 *station_length = st->GetPlatformLength(tile) * TILE_SIZE;
00349
00350
00351
00352 OrderStopLocation osl = OSL_PLATFORM_MIDDLE;
00353 if (v->tcache.cached_total_length >= *station_length) {
00354
00355 osl = OSL_PLATFORM_FAR_END;
00356 } else if (v->current_order.IsType(OT_GOTO_STATION) && v->current_order.GetDestination() == station_id) {
00357 osl = v->current_order.GetStopLocation();
00358 }
00359
00360
00361 int stop;
00362 switch (osl) {
00363 default: NOT_REACHED();
00364
00365 case OSL_PLATFORM_NEAR_END:
00366 stop = v->tcache.cached_total_length;
00367 break;
00368
00369 case OSL_PLATFORM_MIDDLE:
00370 stop = *station_length - (*station_length - v->tcache.cached_total_length) / 2;
00371 break;
00372
00373 case OSL_PLATFORM_FAR_END:
00374 stop = *station_length;
00375 break;
00376 }
00377
00378
00379
00380 return stop - (v->tcache.cached_veh_length + 1) / 2;
00381 }
00382
00383
00388 int Train::GetCurveSpeedLimit() const
00389 {
00390 assert(this->First() == this);
00391
00392 static const int absolute_max_speed = UINT16_MAX;
00393 int max_speed = absolute_max_speed;
00394
00395 if (_settings_game.vehicle.train_acceleration_model == TAM_ORIGINAL) return max_speed;
00396
00397 int curvecount[2] = {0, 0};
00398
00399
00400 int numcurve = 0;
00401 int sum = 0;
00402 int pos = 0;
00403 int lastpos = -1;
00404 for (const Vehicle *u = this; u->Next() != NULL; u = u->Next(), pos++) {
00405 Direction this_dir = u->direction;
00406 Direction next_dir = u->Next()->direction;
00407
00408 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00409 if (dirdiff == DIRDIFF_SAME) continue;
00410
00411 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00412 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00413 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00414 if (lastpos != -1) {
00415 numcurve++;
00416 sum += pos - lastpos;
00417 if (pos - lastpos == 1) {
00418 max_speed = 88;
00419 }
00420 }
00421 lastpos = pos;
00422 }
00423
00424
00425 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00426 max_speed = 61;
00427 }
00428 }
00429
00430 if (numcurve > 0 && max_speed > 88) {
00431 if (curvecount[0] == 1 && curvecount[1] == 1) {
00432 max_speed = absolute_max_speed;
00433 } else {
00434 sum /= numcurve;
00435 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00436 }
00437 }
00438
00439 if (max_speed != absolute_max_speed) {
00440
00441 const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00442 max_speed += (max_speed / 2) * rti->curve_speed;
00443
00444 if (this->tcache.cached_tilt) {
00445
00446 max_speed += max_speed / 5;
00447 }
00448 }
00449
00450 return max_speed;
00451 }
00452
00457 int Train::GetCurrentMaxSpeed() const
00458 {
00459 int max_speed = this->tcache.cached_max_curve_speed;
00460 assert(max_speed == this->GetCurveSpeedLimit());
00461
00462 if (IsRailStationTile(this->tile)) {
00463 StationID sid = GetStationIndex(this->tile);
00464 if (this->current_order.ShouldStopAtStation(this, sid)) {
00465 int station_ahead;
00466 int station_length;
00467 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00468
00469
00470
00471 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00472
00473 if (distance_to_go > 0) {
00474 int st_max_speed = 120;
00475
00476 int delta_v = this->cur_speed / (distance_to_go + 1);
00477 if (this->max_speed > (this->cur_speed - delta_v)) {
00478 st_max_speed = this->cur_speed - (delta_v / 10);
00479 }
00480
00481 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00482 max_speed = min(max_speed, st_max_speed);
00483 }
00484 }
00485 }
00486
00487 for (const Train *u = this; u != NULL; u = u->Next()) {
00488 if (u->track == TRACK_BIT_DEPOT) {
00489 max_speed = min(max_speed, 61);
00490 break;
00491 }
00492 }
00493
00494 return min(max_speed, this->tcache.cached_max_speed);
00495 }
00496
00502 int Train::GetAcceleration() const
00503 {
00504 int32 speed = this->GetCurrentSpeed();
00505
00506
00507 int32 mass = this->tcache.cached_weight;
00508
00509
00510 int32 power = this->tcache.cached_power * 746;
00511
00512 int32 resistance = 0;
00513
00514 bool maglev = this->GetAccelerationType() == 2;
00515
00516 const int area = 120;
00517 if (!maglev) {
00518 resistance = (13 * mass) / 10;
00519 resistance += this->tcache.cached_axle_resistance;
00520 resistance += (this->GetRollingFriction() * mass * speed) / 1000;
00521 resistance += (area * this->tcache.cached_air_drag * speed * speed) / 10000;
00522 } else {
00523 resistance += (area * this->tcache.cached_air_drag * speed * speed) / 20000;
00524 }
00525
00526 resistance += this->GetSlopeResistance();
00527 resistance *= 4;
00528
00529
00530 AccelStatus mode = this->GetAccelerationStatus();
00531
00532 const int max_te = this->tcache.cached_max_te;
00533 int force;
00534 if (speed > 0) {
00535 if (!maglev) {
00536 force = power / speed;
00537 force *= 22;
00538 force /= 10;
00539 if (mode == AS_ACCEL && force > max_te) force = max_te;
00540 } else {
00541 force = power / 25;
00542 }
00543 } else {
00544
00545 force = (mode == AS_ACCEL && !maglev) ? min(max_te, power) : power;
00546 force = max(force, (mass * 8) + resistance);
00547 }
00548
00549 if (mode == AS_ACCEL) {
00550 return (force - resistance) / (mass * 2);
00551 } else {
00552 return min(-force - resistance, -10000) / mass;
00553 }
00554 }
00555
00556 void Train::UpdateAcceleration()
00557 {
00558 assert(this->IsFrontEngine());
00559
00560 this->max_speed = this->tcache.cached_max_speed;
00561
00562 uint power = this->tcache.cached_power;
00563 uint weight = this->tcache.cached_weight;
00564 assert(weight != 0);
00565 this->acceleration = Clamp(power / weight * 4, 1, 255);
00566 }
00567
00573 int Train::GetDisplayImageWidth(Point *offset) const
00574 {
00575 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00576 int vehicle_pitch = 0;
00577
00578 const Engine *e = Engine::Get(this->engine_type);
00579 if (e->grffile != NULL && is_custom_sprite(e->u.rail.image_index)) {
00580 reference_width = e->grffile->traininfo_vehicle_width;
00581 vehicle_pitch = e->grffile->traininfo_vehicle_pitch;
00582 }
00583
00584 if (offset != NULL) {
00585 offset->x = reference_width / 2;
00586 offset->y = vehicle_pitch;
00587 }
00588 return this->tcache.cached_veh_length * reference_width / 8;
00589 }
00590
00591 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00592 {
00593 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00594 }
00595
00596 SpriteID Train::GetImage(Direction direction) const
00597 {
00598 uint8 spritenum = this->spritenum;
00599 SpriteID sprite;
00600
00601 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00602
00603 if (is_custom_sprite(spritenum)) {
00604 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00605 if (sprite != 0) return sprite;
00606
00607 spritenum = Engine::Get(this->engine_type)->original_image_index;
00608 }
00609
00610 sprite = GetDefaultTrainSprite(spritenum, direction);
00611
00612 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00613
00614 return sprite;
00615 }
00616
00617 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00618 {
00619 const Engine *e = Engine::Get(engine);
00620 Direction dir = rear_head ? DIR_E : DIR_W;
00621 uint8 spritenum = e->u.rail.image_index;
00622
00623 if (is_custom_sprite(spritenum)) {
00624 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00625 if (sprite != 0) {
00626 if (e->grffile != NULL) {
00627 y += e->grffile->traininfo_vehicle_pitch;
00628 }
00629 return sprite;
00630 }
00631
00632 spritenum = Engine::Get(engine)->original_image_index;
00633 }
00634
00635 if (rear_head) spritenum++;
00636
00637 return GetDefaultTrainSprite(spritenum, DIR_W);
00638 }
00639
00640 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, SpriteID pal)
00641 {
00642 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00643 int yf = y;
00644 int yr = y;
00645
00646 SpriteID spritef = GetRailIcon(engine, false, yf);
00647 SpriteID spriter = GetRailIcon(engine, true, yr);
00648 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00649 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00650
00651 preferred_x = Clamp(preferred_x, left - real_spritef->x_offs + 14, right - real_spriter->width - real_spriter->x_offs - 15);
00652
00653 DrawSprite(spritef, pal, preferred_x - 14, yf);
00654 DrawSprite(spriter, pal, preferred_x + 15, yr);
00655 } else {
00656 SpriteID sprite = GetRailIcon(engine, false, y);
00657 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00658 preferred_x = Clamp(preferred_x, left - real_sprite->x_offs, right - real_sprite->width - real_sprite->x_offs);
00659 DrawSprite(sprite, pal, preferred_x, y);
00660 }
00661 }
00662
00663 static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, DoCommandFlag flags)
00664 {
00665 const Engine *e = Engine::Get(engine);
00666 const RailVehicleInfo *rvi = &e->u.rail;
00667 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00668
00669
00670 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00671
00672 if (flags & DC_QUERY_COST) return value;
00673
00674
00675 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00676
00677 uint num_vehicles = 1 + CountArticulatedParts(engine, false);
00678
00679
00680 if (!Vehicle::CanAllocateItem(num_vehicles)) {
00681 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00682 }
00683
00684 if (flags & DC_EXEC) {
00685 Train *v = new Train();
00686 v->spritenum = rvi->image_index;
00687
00688 v->engine_type = engine;
00689 v->tcache.first_engine = INVALID_ENGINE;
00690
00691 DiagDirection dir = GetRailDepotDirection(tile);
00692
00693 v->direction = DiagDirToDir(dir);
00694 v->tile = tile;
00695
00696 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00697 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00698
00699 v->x_pos = x;
00700 v->y_pos = y;
00701 v->z_pos = GetSlopeZ(x, y);
00702 v->owner = _current_company;
00703 v->track = TRACK_BIT_DEPOT;
00704 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00705
00706
00707 v->SetWagon();
00708
00709 v->SetFreeWagon();
00710 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00711
00712 v->cargo_type = e->GetDefaultCargoType();
00713
00714 v->cargo_cap = rvi->capacity;
00715 v->value = value.GetCost();
00716
00717
00718 v->railtype = rvi->railtype;
00719
00720 v->build_year = _cur_year;
00721 v->cur_image = SPR_IMG_QUERY;
00722 v->random_bits = VehicleRandomBits();
00723
00724 v->group_id = DEFAULT_GROUP;
00725
00726 AddArticulatedParts(v);
00727
00728 _new_vehicle_id = v->index;
00729
00730 VehicleMove(v, false);
00731 v->First()->ConsistChanged(false);
00732 UpdateTrainGroupID(v->First());
00733
00734 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
00735 if (IsLocalCompany()) {
00736 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00737 }
00738 Company::Get(_current_company)->num_engines[engine]++;
00739
00740 CheckConsistencyOfArticulatedVehicle(v);
00741
00742
00743 Train *w;
00744 FOR_ALL_TRAINS(w) {
00745 if (w->tile == tile &&
00746 w->IsFreeWagon() &&
00747 w->engine_type == engine &&
00748 w->First() != v &&
00749 !(w->vehstatus & VS_CRASHED)) {
00750 DoCommand(0, v->index | (w->Last()->index << 16), 1, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00751 break;
00752 }
00753 }
00754 }
00755
00756 return value;
00757 }
00758
00760 static void NormalizeTrainVehInDepot(const Train *u)
00761 {
00762 const Train *v;
00763 FOR_ALL_TRAINS(v) {
00764 if (v->IsFreeWagon() && v->tile == u->tile &&
00765 v->track == TRACK_BIT_DEPOT) {
00766 if (DoCommand(0, v->index | (u->index << 16), 1, DC_EXEC,
00767 CMD_MOVE_RAIL_VEHICLE).Failed())
00768 break;
00769 }
00770 }
00771 }
00772
00773 static void AddRearEngineToMultiheadedTrain(Train *v)
00774 {
00775 Train *u = new Train();
00776 v->value >>= 1;
00777 u->value = v->value;
00778 u->direction = v->direction;
00779 u->owner = v->owner;
00780 u->tile = v->tile;
00781 u->x_pos = v->x_pos;
00782 u->y_pos = v->y_pos;
00783 u->z_pos = v->z_pos;
00784 u->track = TRACK_BIT_DEPOT;
00785 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00786
00787 u->spritenum = v->spritenum + 1;
00788 u->cargo_type = v->cargo_type;
00789 u->cargo_subtype = v->cargo_subtype;
00790 u->cargo_cap = v->cargo_cap;
00791 u->railtype = v->railtype;
00792 u->engine_type = v->engine_type;
00793 u->build_year = v->build_year;
00794 u->cur_image = SPR_IMG_QUERY;
00795 u->random_bits = VehicleRandomBits();
00796 v->SetMultiheaded();
00797 u->SetMultiheaded();
00798 v->SetNext(u);
00799 VehicleMove(u, false);
00800
00801
00802 v->other_multiheaded_part = u;
00803 u->other_multiheaded_part = v;
00804 }
00805
00814 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00815 {
00816
00817 if (!IsEngineBuildable(p1, VEH_TRAIN, _current_company)) return_cmd_error(STR_ERROR_RAIL_VEHICLE_NOT_AVAILABLE);
00818
00819 const Engine *e = Engine::Get(p1);
00820 const RailVehicleInfo *rvi = &e->u.rail;
00821 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00822
00823
00824 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00825
00826 if (flags & DC_QUERY_COST) return value;
00827
00828
00829
00830 if (!IsRailDepotTile(tile)) return CMD_ERROR;
00831 if (!IsTileOwner(tile, _current_company)) return CMD_ERROR;
00832
00833 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(p1, tile, flags);
00834
00835 uint num_vehicles =
00836 (rvi->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1) +
00837 CountArticulatedParts(p1, false);
00838
00839
00840
00841 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00842
00843
00844 if (!Vehicle::CanAllocateItem(num_vehicles)) {
00845 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00846 }
00847
00848 UnitID unit_num = (flags & DC_AUTOREPLACE) ? 0 : GetFreeUnitNumber(VEH_TRAIN);
00849 if (unit_num > _settings_game.vehicle.max_trains) {
00850 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00851 }
00852
00853 if (flags & DC_EXEC) {
00854 DiagDirection dir = GetRailDepotDirection(tile);
00855 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00856 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00857
00858 Train *v = new Train();
00859 v->unitnumber = unit_num;
00860 v->direction = DiagDirToDir(dir);
00861 v->tile = tile;
00862 v->owner = _current_company;
00863 v->x_pos = x;
00864 v->y_pos = y;
00865 v->z_pos = GetSlopeZ(x, y);
00866
00867 v->track = TRACK_BIT_DEPOT;
00868 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00869 v->spritenum = rvi->image_index;
00870 v->cargo_type = e->GetDefaultCargoType();
00871
00872 v->cargo_cap = rvi->capacity;
00873 v->max_speed = rvi->max_speed;
00874 v->value = value.GetCost();
00875 v->last_station_visited = INVALID_STATION;
00876
00877
00878 v->engine_type = p1;
00879 v->tcache.first_engine = INVALID_ENGINE;
00880
00881 v->reliability = e->reliability;
00882 v->reliability_spd_dec = e->reliability_spd_dec;
00883 v->max_age = e->GetLifeLengthInDays();
00884
00885 v->name = NULL;
00886 v->railtype = rvi->railtype;
00887 _new_vehicle_id = v->index;
00888
00889 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00890 v->date_of_last_service = _date;
00891 v->build_year = _cur_year;
00892 v->cur_image = SPR_IMG_QUERY;
00893 v->random_bits = VehicleRandomBits();
00894
00895
00896 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00897
00898 v->group_id = DEFAULT_GROUP;
00899
00900
00901 v->SetFrontEngine();
00902 v->SetEngine();
00903
00904 VehicleMove(v, false);
00905
00906 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00907 AddRearEngineToMultiheadedTrain(v);
00908 } else {
00909 AddArticulatedParts(v);
00910 }
00911
00912 v->ConsistChanged(false);
00913 UpdateTrainGroupID(v);
00914
00915 if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) {
00916 NormalizeTrainVehInDepot(v);
00917 }
00918
00919 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00920 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
00921 SetWindowDirty(WC_COMPANY, v->owner);
00922 if (IsLocalCompany()) {
00923 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00924 }
00925
00926 Company::Get(_current_company)->num_engines[p1]++;
00927
00928 CheckConsistencyOfArticulatedVehicle(v);
00929 }
00930
00931 return value;
00932 }
00933
00934
00935 bool Train::IsInDepot() const
00936 {
00937
00938 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00939
00940
00941 for (const Train *v = this; v != NULL; v = v->Next()) {
00942 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00943 }
00944
00945 return true;
00946 }
00947
00948 bool Train::IsStoppedInDepot() const
00949 {
00950
00951 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00952 return this->IsInDepot();
00953 }
00954
00955 static Train *FindGoodVehiclePos(const Train *src)
00956 {
00957 EngineID eng = src->engine_type;
00958 TileIndex tile = src->tile;
00959
00960 Train *dst;
00961 FOR_ALL_TRAINS(dst) {
00962 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00963
00964 Train *t = dst;
00965 while (t->engine_type == eng) {
00966 t = t->Next();
00967 if (t == NULL) return dst;
00968 }
00969 }
00970 }
00971
00972 return NULL;
00973 }
00974
00976 typedef SmallVector<Train *, 16> TrainList;
00977
00983 static void MakeTrainBackup(TrainList &list, Train *t)
00984 {
00985 for (; t != NULL; t = t->Next()) *list.Append() = t;
00986 }
00987
00992 static void RestoreTrainBackup(TrainList &list)
00993 {
00994
00995 if (list.Length() == 0) return;
00996
00997 Train *prev = NULL;
00998
00999 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
01000 Train *t = *iter;
01001 if (prev != NULL) {
01002 prev->SetNext(t);
01003 } else if (t->Previous() != NULL) {
01004
01005 t->Previous()->SetNext(NULL);
01006 }
01007 prev = t;
01008 }
01009 }
01010
01016 static void RemoveFromConsist(Train *part, bool chain = false)
01017 {
01018 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
01019
01020
01021
01022 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
01023
01024
01025 tail->SetNext(NULL);
01026 }
01027
01033 static void InsertInConsist(Train *dst, Train *chain)
01034 {
01035
01036 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
01037
01038 chain->Last()->SetNext(dst->Next());
01039 dst->SetNext(chain);
01040 }
01041
01047 static void NormaliseDualHeads(Train *t)
01048 {
01049 for (; t != NULL; t = t->GetNextVehicle()) {
01050 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
01051
01052
01053 Train *u;
01054 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
01055
01056 if (u == t->other_multiheaded_part) continue;
01057
01058
01059 RemoveFromConsist(t->other_multiheaded_part);
01060
01061 InsertInConsist(u, t->other_multiheaded_part);
01062 }
01063 }
01064
01069 static void NormaliseSubtypes(Train *chain)
01070 {
01071
01072 if (chain == NULL) return;
01073
01074
01075 assert(chain->Previous() == NULL);
01076
01077
01078 if (chain->IsWagon()) {
01079 chain->SetFreeWagon();
01080 } else {
01081 assert(chain->IsEngine());
01082 chain->SetFrontEngine();
01083 }
01084
01085
01086 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
01087 t->ClearFreeWagon();
01088 t->ClearFrontEngine();
01089 }
01090 }
01091
01101 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
01102 {
01103
01104
01105
01106 if ((src != NULL && src->IsEngine() ? 1 : 0) +
01107 (dst != NULL && dst->IsEngine() ? 1 : 0) -
01108 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
01109 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
01110 return CommandCost();
01111 }
01112
01113
01114
01115 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
01116
01117 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
01118 }
01119
01125 static CommandCost CheckTrainAttachment(Train *t)
01126 {
01127
01128 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
01129
01130
01131
01132 int allowed_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
01133
01134 Train *head = t;
01135 Train *prev = t;
01136
01137
01138 t = t->Next();
01139 allowed_len--;
01140 prev->SetNext(NULL);
01141
01142
01143 head->InvalidateNewGRFCache();
01144
01145 while (t != NULL) {
01146 Train *next = t->Next();
01147
01148
01149
01150 t->SetNext(NULL);
01151
01152
01153 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
01154 allowed_len--;
01155
01156
01157 EngineID first_engine = t->tcache.first_engine;
01158 t->tcache.first_engine = INVALID_ENGINE;
01159
01160
01161
01162 t->InvalidateNewGRFCache();
01163
01164 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
01165
01166
01167 t->tcache.first_engine = first_engine;
01168
01169
01170 t->InvalidateNewGRFCache();
01171 head->InvalidateNewGRFCache();
01172
01173 if (callback != CALLBACK_FAILED) {
01174
01175 StringID error = STR_NULL;
01176
01177 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
01178 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(head->engine_type), 0xD000 + callback);
01179
01180 if (error != STR_NULL) return_cmd_error(error);
01181 }
01182 }
01183
01184
01185 prev->SetNext(t);
01186 prev = t;
01187 t = next;
01188 }
01189
01190 if (allowed_len <= 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01191 return CommandCost();
01192 }
01193
01203 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src)
01204 {
01205
01206 CommandCost ret = CheckTrainAttachment(src);
01207 if (ret.Failed()) return ret;
01208 ret = CheckTrainAttachment(dst);
01209 if (ret.Failed()) return ret;
01210
01211
01212 return CheckNewTrain(original_dst, dst, original_src, src);
01213 }
01214
01223 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01224 {
01225
01226 if (*src_head == *dst_head) {
01227
01228
01229 *dst_head = NULL;
01230 } else if (*dst_head == NULL) {
01231
01232
01233 *dst_head = src;
01234 }
01235
01236 if (src == *src_head) {
01237
01238
01239
01240
01241
01242
01243 *src_head = move_chain ? NULL :
01244 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01245 }
01246
01247
01248
01249
01250 RemoveFromConsist(src, move_chain);
01251 if (*dst_head != src) InsertInConsist(dst, src);
01252
01253
01254
01255 NormaliseDualHeads(*src_head);
01256 NormaliseDualHeads(*dst_head);
01257 }
01258
01264 static void NormaliseTrainHead(Train *head)
01265 {
01266
01267 if (head == NULL) return;
01268
01269
01270 head->ConsistChanged(false);
01271 UpdateTrainGroupID(head);
01272
01273
01274 if (!head->IsFrontEngine()) return;
01275
01276
01277 SetWindowDirty(WC_VEHICLE_REFIT, head->index);
01278 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, VVW_WIDGET_REFIT_VEH);
01279
01280
01281 if (head->unitnumber != 0) return;
01282 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01283 }
01284
01296 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01297 {
01298 VehicleID s = GB(p1, 0, 16);
01299 VehicleID d = GB(p1, 16, 16);
01300 bool move_chain = HasBit(p2, 0);
01301
01302 Train *src = Train::GetIfValid(s);
01303 if (src == NULL || !CheckOwnership(src->owner)) return CMD_ERROR;
01304
01305
01306 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01307
01308
01309 Train *dst;
01310 if (d == INVALID_VEHICLE) {
01311 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01312 } else {
01313 dst = Train::GetIfValid(d);
01314 if (dst == NULL || !CheckOwnership(dst->owner)) return CMD_ERROR;
01315
01316
01317 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01318 }
01319
01320
01321 src = src->GetFirstEnginePart();
01322 if (dst != NULL) {
01323 dst = dst->GetFirstEnginePart();
01324 }
01325
01326
01327 if (src == dst) return CommandCost();
01328
01329
01330 Train *src_head = src->First();
01331 Train *dst_head;
01332 if (dst != NULL) {
01333 dst_head = dst->First();
01334 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01335
01336 dst = dst->GetLastEnginePart();
01337 } else {
01338 dst_head = NULL;
01339 }
01340
01341 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01342
01343
01344 if (move_chain && src_head == dst_head) return CommandCost();
01345
01346
01347 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01348
01349
01350 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01351
01352
01353 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01354
01355
01356
01357 TrainList original_src;
01358 TrainList original_dst;
01359
01360 MakeTrainBackup(original_src, src_head);
01361 MakeTrainBackup(original_dst, dst_head);
01362
01363
01364
01365
01366 Train *original_src_head = src_head;
01367 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01368
01369
01370 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01371
01372 if ((flags & DC_AUTOREPLACE) == 0) {
01373
01374
01375
01376 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head);
01377 if (ret.Failed()) {
01378
01379 RestoreTrainBackup(original_src);
01380 RestoreTrainBackup(original_dst);
01381 return ret;
01382 }
01383 }
01384
01385
01386 if (flags & DC_EXEC) {
01387
01388 NormaliseSubtypes(src_head);
01389 NormaliseSubtypes(dst_head);
01390
01391
01392
01393
01394
01395
01396
01397
01398
01399
01400
01401
01402
01403
01404
01405
01406
01407
01408
01409
01410
01411 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01412
01413 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01414 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01415 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01416 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01417 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01418
01419
01420
01421
01422
01423
01424
01425
01426 if (dst_head != NULL ? dst_head != src : !src_head->IsFrontEngine()) {
01427 DecreaseGroupNumVehicle(src->group_id);
01428 }
01429
01430
01431
01432 DeleteVehicleOrders(src);
01433 RemoveVehicleFromGroup(src);
01434 src->unitnumber = 0;
01435 }
01436
01437
01438
01439 if (original_src_head != src && dst_head == src) {
01440 SetTrainGroupID(src, DEFAULT_GROUP);
01441 }
01442
01443
01444 NormaliseTrainHead(src_head);
01445 NormaliseTrainHead(dst_head);
01446
01447
01448 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01449 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01450 } else {
01451
01452 RestoreTrainBackup(original_src);
01453 RestoreTrainBackup(original_dst);
01454 }
01455
01456 return CommandCost();
01457 }
01458
01470 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01471 {
01472
01473 Window *w = NULL;
01474
01475 Train *v = Train::GetIfValid(p1);
01476 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
01477
01478
01479 bool sell_chain = HasBit(p2, 0);
01480
01481 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_SELL_DESTROYED_VEHICLE);
01482
01483 v = v->GetFirstEnginePart();
01484 Train *first = v->First();
01485
01486
01487 if (!first->IsStoppedInDepot()) {
01488 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01489 }
01490
01491 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01492
01493
01494
01495 TrainList original;
01496 MakeTrainBackup(original, first);
01497
01498
01499 Train *new_head = first;
01500 Train *sell_head = NULL;
01501
01502
01503 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01504
01505
01506 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head);
01507 if (ret.Failed()) {
01508
01509 RestoreTrainBackup(original);
01510 return ret;
01511 }
01512
01513 CommandCost cost(EXPENSES_NEW_VEHICLES);
01514 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01515
01516
01517 if (flags & DC_EXEC) {
01518
01519 NormaliseSubtypes(new_head);
01520
01521 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01522
01523
01524 new_head->orders.list = first->orders.list;
01525 new_head->AddToShared(first);
01526 DeleteVehicleOrders(first);
01527
01528
01529 new_head->CopyVehicleConfigAndStatistics(first);
01530 IncreaseGroupNumVehicle(new_head->group_id);
01531
01532
01533 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01534 }
01535
01536
01537 NormaliseTrainHead(new_head);
01538
01539
01540 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01541 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01542
01543
01544 delete sell_head;
01545 } else {
01546
01547 RestoreTrainBackup(original);
01548 }
01549
01550 return cost;
01551 }
01552
01553 void Train::UpdateDeltaXY(Direction direction)
01554 {
01555 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01556 static const uint32 _delta_xy_table[8] = {
01557 MKIT(3, 3, -1, -1),
01558 MKIT(3, 7, -1, -3),
01559 MKIT(3, 3, -1, -1),
01560 MKIT(7, 3, -3, -1),
01561 MKIT(3, 3, -1, -1),
01562 MKIT(3, 7, -1, -3),
01563 MKIT(3, 3, -1, -1),
01564 MKIT(7, 3, -3, -1),
01565 };
01566 #undef MKIT
01567
01568 uint32 x = _delta_xy_table[direction];
01569 this->x_offs = GB(x, 0, 8);
01570 this->y_offs = GB(x, 8, 8);
01571 this->x_extent = GB(x, 16, 8);
01572 this->y_extent = GB(x, 24, 8);
01573 this->z_extent = 6;
01574 }
01575
01576 static inline void SetLastSpeed(Train *v, int spd)
01577 {
01578 int old = v->tcache.last_speed;
01579 if (spd != old) {
01580 v->tcache.last_speed = spd;
01581 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01582 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01583 }
01584 }
01585 }
01586
01588 static void MarkTrainAsStuck(Train *v)
01589 {
01590 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01591
01592 SetBit(v->flags, VRF_TRAIN_STUCK);
01593
01594 v->wait_counter = 0;
01595
01596
01597 v->cur_speed = 0;
01598 v->subspeed = 0;
01599 SetLastSpeed(v, 0);
01600
01601 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01602 }
01603 }
01604
01605 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01606 {
01607 uint16 flag1 = *swap_flag1;
01608 uint16 flag2 = *swap_flag2;
01609
01610
01611 ClrBit(*swap_flag1, VRF_GOINGUP);
01612 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01613 ClrBit(*swap_flag2, VRF_GOINGUP);
01614 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01615
01616
01617 if (HasBit(flag1, VRF_GOINGUP)) {
01618 SetBit(*swap_flag2, VRF_GOINGDOWN);
01619 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01620 SetBit(*swap_flag2, VRF_GOINGUP);
01621 }
01622 if (HasBit(flag2, VRF_GOINGUP)) {
01623 SetBit(*swap_flag1, VRF_GOINGDOWN);
01624 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01625 SetBit(*swap_flag1, VRF_GOINGUP);
01626 }
01627 }
01628
01629 static void ReverseTrainSwapVeh(Train *v, int l, int r)
01630 {
01631 Train *a, *b;
01632
01633
01634 for (a = v; l != 0; l--) a = a->Next();
01635 for (b = v; r != 0; r--) b = b->Next();
01636
01637 if (a != b) {
01638
01639 {
01640 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01641 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01642 a->vehstatus = tmp;
01643 }
01644
01645 Swap(a->track, b->track);
01646 Swap(a->direction, b->direction);
01647
01648
01649 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01650 if (b->track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01651
01652 Swap(a->x_pos, b->x_pos);
01653 Swap(a->y_pos, b->y_pos);
01654 Swap(a->tile, b->tile);
01655 Swap(a->z_pos, b->z_pos);
01656
01657 SwapTrainFlags(&a->flags, &b->flags);
01658
01659
01660 a->UpdateViewport(true, true);
01661 b->UpdateViewport(true, true);
01662
01663
01664 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01665 if (b->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01666 } else {
01667 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01668 a->UpdateViewport(true, true);
01669
01670 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01671 }
01672
01673
01674 v->PowerChanged();
01675 }
01676
01677
01683 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01684 {
01685 return (v->type == VEH_TRAIN) ? v : NULL;
01686 }
01687
01688
01695 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01696 {
01697 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01698
01699 Train *t = Train::From(v);
01700 if (!t->IsFrontEngine()) return NULL;
01701
01702 TileIndex tile = *(TileIndex *)data;
01703
01704 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01705
01706 return t;
01707 }
01708
01709
01716 static bool TrainApproachingCrossing(TileIndex tile)
01717 {
01718 assert(IsLevelCrossingTile(tile));
01719
01720 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01721 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01722
01723 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01724
01725 dir = ReverseDiagDir(dir);
01726 tile_from = tile + TileOffsByDiagDir(dir);
01727
01728 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01729 }
01730
01731
01738 void UpdateLevelCrossing(TileIndex tile, bool sound)
01739 {
01740 assert(IsLevelCrossingTile(tile));
01741
01742
01743 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01744
01745 if (new_state != IsCrossingBarred(tile)) {
01746 if (new_state && sound) {
01747 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01748 }
01749 SetCrossingBarred(tile, new_state);
01750 MarkTileDirtyByTile(tile);
01751 }
01752 }
01753
01754
01760 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01761 {
01762 if (!IsCrossingBarred(tile)) {
01763 BarCrossing(tile);
01764 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01765 MarkTileDirtyByTile(tile);
01766 }
01767 }
01768
01769
01775 static void AdvanceWagonsBeforeSwap(Train *v)
01776 {
01777 Train *base = v;
01778 Train *first = base;
01779 Train *last = v->Last();
01780 uint length = CountVehiclesInChain(v);
01781
01782 while (length > 2) {
01783 last = last->Previous();
01784 first = first->Next();
01785
01786 int differential = base->tcache.cached_veh_length - last->tcache.cached_veh_length;
01787
01788
01789
01790 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01791
01792 base = first;
01793 length -= 2;
01794 }
01795 }
01796
01797
01803 static void AdvanceWagonsAfterSwap(Train *v)
01804 {
01805
01806 Train *dep = v;
01807 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01808 dep = dep->Next();
01809 }
01810
01811 Train *leave = dep->Next();
01812
01813 if (leave != NULL) {
01814
01815 int d = TicksToLeaveDepot(dep);
01816
01817 if (d <= 0) {
01818 leave->vehstatus &= ~VS_HIDDEN;
01819 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01820 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01821 }
01822 } else {
01823 dep = NULL;
01824 }
01825
01826 Train *base = v;
01827 Train *first = base;
01828 Train *last = v->Last();
01829 uint length = CountVehiclesInChain(v);
01830
01831
01832
01833 bool nomove = (dep == NULL);
01834
01835 while (length > 2) {
01836
01837
01838 if (base == dep) break;
01839
01840
01841 if (last == dep) nomove = true;
01842
01843 last = last->Previous();
01844 first = first->Next();
01845
01846 int differential = last->tcache.cached_veh_length - base->tcache.cached_veh_length;
01847
01848
01849 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01850
01851 base = first;
01852 length -= 2;
01853 }
01854 }
01855
01856
01857 static void ReverseTrainDirection(Train *v)
01858 {
01859 if (IsRailDepotTile(v->tile)) {
01860 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01861 }
01862
01863
01864 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01865
01866
01867 TileIndex crossing = TrainApproachingCrossingTile(v);
01868
01869
01870 int r = CountVehiclesInChain(v) - 1;
01871
01872 AdvanceWagonsBeforeSwap(v);
01873
01874
01875 int l = 0;
01876 do {
01877 ReverseTrainSwapVeh(v, l++, r--);
01878 } while (l <= r);
01879
01880 AdvanceWagonsAfterSwap(v);
01881
01882 if (IsRailDepotTile(v->tile)) {
01883 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01884 }
01885
01886 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01887
01888 ClrBit(v->flags, VRF_REVERSING);
01889
01890
01891 v->ConsistChanged(true);
01892
01893
01894 for (Vehicle *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01895
01896
01897 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01898
01899
01900 crossing = TrainApproachingCrossingTile(v);
01901 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01902
01903
01904 if (v->track == TRACK_BIT_DEPOT) {
01905
01906 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01907 ClrBit(v->flags, VRF_TRAIN_STUCK);
01908 return;
01909 }
01910
01911
01912
01913 DiagDirection dir = TrainExitDir(v->direction, v->track);
01914 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01915
01916 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01917
01918
01919 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01920 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01921 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01922
01923 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01924 if (TryPathReserve(v, false, first_tile_okay)) {
01925
01926 CheckNextTrainTile(v);
01927 } else if (v->current_order.GetType() != OT_LOADING) {
01928
01929 MarkTrainAsStuck(v);
01930 }
01931 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01932
01933 ClrBit(v->flags, VRF_TRAIN_STUCK);
01934 v->wait_counter = 0;
01935 }
01936 }
01937
01946 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01947 {
01948 Train *v = Train::GetIfValid(p1);
01949 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
01950
01951 if (p2 != 0) {
01952
01953
01954 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01955 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01956 }
01957
01958 Train *front = v->First();
01959
01960 if (!front->IsStoppedInDepot()) {
01961 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01962 }
01963
01964 if (flags & DC_EXEC) {
01965 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01966 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
01967 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
01968
01969 v->force_proceed = 0;
01970 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01971 }
01972 } else {
01973
01974 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01975
01976 if (flags & DC_EXEC) {
01977
01978 if (v->current_order.IsType(OT_LOADING)) {
01979 const Vehicle *last = v;
01980 while (last->Next() != NULL) last = last->Next();
01981
01982
01983 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01984 v->LeaveStation();
01985 }
01986 }
01987
01988
01989 v->force_proceed = 0;
01990 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01991
01992 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL && v->cur_speed != 0) {
01993 ToggleBit(v->flags, VRF_REVERSING);
01994 } else {
01995 v->cur_speed = 0;
01996 SetLastSpeed(v, 0);
01997 HideFillingPercent(&v->fill_percent_te_id);
01998 ReverseTrainDirection(v);
01999 }
02000 }
02001 }
02002 return CommandCost();
02003 }
02004
02013 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02014 {
02015 Train *t = Train::GetIfValid(p1);
02016 if (t == NULL || !CheckOwnership(t->owner)) return CMD_ERROR;
02017
02018 if (flags & DC_EXEC) {
02019
02020
02021
02022
02023
02024 t->force_proceed = t->force_proceed == 2 ? 0 : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? 1 : 2;
02025 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
02026 }
02027
02028 return CommandCost();
02029 }
02030
02042 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02043 {
02044 CargoID new_cid = GB(p2, 0, 8);
02045 byte new_subtype = GB(p2, 8, 8);
02046 bool only_this = HasBit(p2, 16);
02047
02048 Train *v = Train::GetIfValid(p1);
02049 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
02050
02051 if (!v->IsStoppedInDepot()) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02052 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_REFIT_DESTROYED_VEHICLE);
02053
02054
02055 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02056
02057 CommandCost cost = RefitVehicle(v, only_this, new_cid, new_subtype, flags);
02058
02059
02060 if (flags & DC_EXEC) {
02061 Train *front = v->First();
02062 front->ConsistChanged(false);
02063 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
02064 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
02065 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02066 } else {
02067 v->InvalidateNewGRFCacheOfChain();
02068 }
02069
02070 return cost;
02071 }
02072
02075 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
02076 {
02077 assert(!(v->vehstatus & VS_CRASHED));
02078
02079 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
02080
02081 PBSTileInfo origin = FollowTrainReservation(v);
02082 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
02083
02084 switch (_settings_game.pf.pathfinder_for_trains) {
02085 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
02086 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
02087
02088 default: NOT_REACHED();
02089 }
02090 }
02091
02092 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02093 {
02094 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
02095 if (tfdd.best_length == UINT_MAX) return false;
02096
02097 if (location != NULL) *location = tfdd.tile;
02098 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
02099 if (reverse != NULL) *reverse = tfdd.reverse;
02100
02101 return true;
02102 }
02103
02114 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02115 {
02116 if (p2 & DEPOT_MASS_SEND) {
02117
02118 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02119 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02120 }
02121
02122 Train *v = Train::GetIfValid(p1);
02123 if (v == NULL) return CMD_ERROR;
02124
02125 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02126 }
02127
02128 static const int8 _vehicle_smoke_pos[8] = {
02129 1, 1, 1, 0, -1, -1, -1, 0
02130 };
02131
02132 static void HandleLocomotiveSmokeCloud(const Train *v)
02133 {
02134 bool sound = false;
02135
02136 if ((v->vehstatus & VS_TRAIN_SLOWING) || v->cur_speed < 2) {
02137 return;
02138 }
02139
02140 const Train *u = v;
02141
02142 do {
02143 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02144 int effect_offset = GB(v->tcache.cached_vis_effect, 0, 4) - 8;
02145 byte effect_type = GB(v->tcache.cached_vis_effect, 4, 2);
02146 bool disable_effect = HasBit(v->tcache.cached_vis_effect, 6);
02147
02148
02149 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02150 disable_effect ||
02151 v->vehstatus & VS_HIDDEN) {
02152 continue;
02153 }
02154
02155
02156 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02157
02158
02159 if (!HasPowerOnRail(v->railtype, GetTileRailType(v->tile))) continue;
02160
02161 if (effect_type == 0) {
02162
02163 effect_type = rvi->engclass;
02164 } else {
02165 effect_type--;
02166 }
02167
02168 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02169 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02170
02171 if (HasBit(v->flags, VRF_REVERSE_DIRECTION)) {
02172 x = -x;
02173 y = -y;
02174 }
02175
02176 switch (effect_type) {
02177 case 0:
02178
02179 if (GB(v->tick_counter, 0, 4) == 0) {
02180 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02181 sound = true;
02182 }
02183 break;
02184
02185 case 1:
02186
02187 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02188 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02189 sound = true;
02190 }
02191 break;
02192
02193 case 2:
02194
02195 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02196 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02197 sound = true;
02198 }
02199 break;
02200
02201 default:
02202 break;
02203 }
02204 } while ((v = v->Next()) != NULL);
02205
02206 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02207 }
02208
02209 void Train::PlayLeaveStationSound() const
02210 {
02211 static const SoundFx sfx[] = {
02212 SND_04_TRAIN,
02213 SND_0A_TRAIN_HORN,
02214 SND_0A_TRAIN_HORN,
02215 SND_47_MAGLEV_2,
02216 SND_41_MAGLEV
02217 };
02218
02219 if (PlayVehicleSound(this, VSE_START)) return;
02220
02221 EngineID engtype = this->engine_type;
02222 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02223 }
02224
02226 static void CheckNextTrainTile(Train *v)
02227 {
02228
02229 if (_settings_game.pf.path_backoff_interval == 255) return;
02230
02231
02232 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->track == TRACK_BIT_DEPOT) return;
02233
02234 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02235
02236 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02237
02238 Trackdir td = v->GetVehicleTrackdir();
02239
02240
02241 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02242 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02243 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02244
02245 CFollowTrackRail ft(v);
02246 if (!ft.Follow(v->tile, td)) return;
02247
02248 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02249
02250 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02251 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02252
02253 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02254 if (_settings_game.pf.forbid_90_deg) {
02255 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02256 }
02257 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02258 }
02259 }
02260 }
02261 }
02262
02263 static bool CheckTrainStayInDepot(Train *v)
02264 {
02265
02266 for (const Train *u = v; u != NULL; u = u->Next()) {
02267 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02268 }
02269
02270
02271 if (v->tcache.cached_power == 0) {
02272 v->vehstatus |= VS_STOPPED;
02273 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02274 return true;
02275 }
02276
02277 SigSegState seg_state;
02278
02279 if (v->force_proceed == 0) {
02280
02281 if (++v->wait_counter < 37) {
02282 SetWindowClassesDirty(WC_TRAINS_LIST);
02283 return true;
02284 }
02285
02286 v->wait_counter = 0;
02287
02288 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02289 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02290
02291 SetWindowClassesDirty(WC_TRAINS_LIST);
02292 return true;
02293 }
02294 } else {
02295 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02296 }
02297
02298
02299 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02300
02301 if (HasDepotReservation(v->tile)) return true;
02302 SetDepotReservation(v->tile, true);
02303 VehicleEnterDepot(v);
02304 return true;
02305 }
02306
02307
02308 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == 0) {
02309
02310 SetWindowClassesDirty(WC_TRAINS_LIST);
02311 MarkTrainAsStuck(v);
02312 return true;
02313 }
02314
02315 SetDepotReservation(v->tile, true);
02316 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02317
02318 VehicleServiceInDepot(v);
02319 SetWindowClassesDirty(WC_TRAINS_LIST);
02320 v->PlayLeaveStationSound();
02321
02322 v->track = TRACK_BIT_X;
02323 if (v->direction & 2) v->track = TRACK_BIT_Y;
02324
02325 v->vehstatus &= ~VS_HIDDEN;
02326 v->cur_speed = 0;
02327
02328 v->UpdateDeltaXY(v->direction);
02329 v->cur_image = v->GetImage(v->direction);
02330 VehicleMove(v, false);
02331 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02332 v->UpdateAcceleration();
02333 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02334
02335 return false;
02336 }
02337
02339 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02340 {
02341 DiagDirection dir = TrackdirToExitdir(track_dir);
02342
02343 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02344
02345 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02346 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02347
02348 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02349
02350 SetTunnelBridgeReservation(tile, false);
02351 SetTunnelBridgeReservation(end, false);
02352
02353 if (_settings_client.gui.show_track_reservation) {
02354 MarkTileDirtyByTile(tile);
02355 MarkTileDirtyByTile(end);
02356 }
02357 }
02358 }
02359 } else if (IsRailStationTile(tile)) {
02360 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02361
02362
02363 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02364 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02365 }
02366 } else {
02367
02368 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02369 }
02370 }
02371
02373 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02374 {
02375 assert(v->IsFrontEngine());
02376
02377 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02378 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02379 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02380 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02381
02382
02383 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02384
02385 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02386 while (ft.Follow(tile, td)) {
02387 tile = ft.m_new_tile;
02388 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02389 td = RemoveFirstTrackdir(&bits);
02390 assert(bits == TRACKDIR_BIT_NONE);
02391
02392 if (!IsValidTrackdir(td)) break;
02393
02394 if (IsTileType(tile, MP_RAILWAY)) {
02395 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02396
02397 UnreserveRailTrack(tile, TrackdirToTrack(td));
02398 break;
02399 }
02400 if (HasPbsSignalOnTrackdir(tile, td)) {
02401 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02402
02403 break;
02404 } else {
02405
02406 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02407 MarkTileDirtyByTile(tile);
02408 }
02409 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02410 break;
02411 }
02412 }
02413
02414
02415 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);
02416
02417 free_tile = true;
02418 }
02419 }
02420
02421 static const byte _initial_tile_subcoord[6][4][3] = {
02422 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02423 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02424 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02425 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02426 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02427 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02428 };
02429
02442 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02443 {
02444 switch (_settings_game.pf.pathfinder_for_trains) {
02445 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02446 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02447
02448 default: NOT_REACHED();
02449 }
02450 }
02451
02457 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02458 {
02459 PBSTileInfo origin = FollowTrainReservation(v);
02460
02461 CFollowTrackRail ft(v);
02462
02463 TileIndex tile = origin.tile;
02464 Trackdir cur_td = origin.trackdir;
02465 while (ft.Follow(tile, cur_td)) {
02466 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02467
02468 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02469 }
02470
02471 if (_settings_game.pf.forbid_90_deg) {
02472 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02473 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02474 }
02475
02476
02477 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02478 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02479
02480
02481
02482
02483
02484
02485 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02486
02487
02488
02489 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02490
02491
02492 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02493 if (enterdir) *enterdir = ft.m_exitdir;
02494 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02495 }
02496
02497 tile = ft.m_new_tile;
02498 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02499
02500 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02501 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02502 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02503
02504 return PBSTileInfo(tile, cur_td, true);
02505 }
02506
02507 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02508 }
02509
02510 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02511
02512 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02513 }
02514
02515
02516 tile = origin.tile;
02517 cur_td = origin.trackdir;
02518 TileIndex stopped = ft.m_old_tile;
02519 Trackdir stopped_td = ft.m_old_td;
02520 while (tile != stopped || cur_td != stopped_td) {
02521 if (!ft.Follow(tile, cur_td)) break;
02522
02523 if (_settings_game.pf.forbid_90_deg) {
02524 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02525 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02526 }
02527 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02528
02529 tile = ft.m_new_tile;
02530 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02531
02532 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02533 }
02534
02535
02536 return PBSTileInfo();
02537 }
02538
02549 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02550 {
02551 switch (_settings_game.pf.pathfinder_for_trains) {
02552 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02553 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02554
02555 default: NOT_REACHED();
02556 }
02557 }
02558
02560 class VehicleOrderSaver
02561 {
02562 private:
02563 Vehicle *v;
02564 Order old_order;
02565 TileIndex old_dest_tile;
02566 StationID old_last_station_visited;
02567 VehicleOrderID index;
02568
02569 public:
02570 VehicleOrderSaver(Vehicle *_v) :
02571 v(_v),
02572 old_order(_v->current_order),
02573 old_dest_tile(_v->dest_tile),
02574 old_last_station_visited(_v->last_station_visited),
02575 index(_v->cur_order_index)
02576 {
02577 }
02578
02579 ~VehicleOrderSaver()
02580 {
02581 this->v->current_order = this->old_order;
02582 this->v->dest_tile = this->old_dest_tile;
02583 this->v->last_station_visited = this->old_last_station_visited;
02584 }
02585
02591 bool SwitchToNextOrder(bool skip_first)
02592 {
02593 if (this->v->GetNumOrders() == 0) return false;
02594
02595 if (skip_first) ++this->index;
02596
02597 int conditional_depth = 0;
02598
02599 do {
02600
02601 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02602
02603 Order *order = this->v->GetOrder(this->index);
02604 assert(order != NULL);
02605
02606 switch (order->GetType()) {
02607 case OT_GOTO_DEPOT:
02608
02609 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02610 case OT_GOTO_STATION:
02611 case OT_GOTO_WAYPOINT:
02612 this->v->current_order = *order;
02613 UpdateOrderDest(this->v, order);
02614 return true;
02615 case OT_CONDITIONAL: {
02616 if (conditional_depth > this->v->GetNumOrders()) return false;
02617 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02618 if (next != INVALID_VEH_ORDER_ID) {
02619 conditional_depth++;
02620 this->index = next;
02621
02622 continue;
02623 }
02624 break;
02625 }
02626 default:
02627 break;
02628 }
02629
02630
02631 ++this->index;
02632 } while (this->index != this->v->cur_order_index);
02633
02634 return false;
02635 }
02636 };
02637
02638
02639 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02640 {
02641 Track best_track = INVALID_TRACK;
02642 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02643 bool changed_signal = false;
02644
02645 assert((tracks & ~TRACK_BIT_MASK) == 0);
02646
02647 if (got_reservation != NULL) *got_reservation = false;
02648
02649
02650 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02651
02652 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02653
02654
02655 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02656 Track track = FindFirstTrack(tracks);
02657
02658 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02659 do_track_reservation = true;
02660 changed_signal = true;
02661 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02662 } else if (!do_track_reservation) {
02663 return track;
02664 }
02665 best_track = track;
02666 }
02667
02668 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02669 DiagDirection dest_enterdir = enterdir;
02670 if (do_track_reservation) {
02671
02672
02673
02674 CheckIfTrainNeedsService(v);
02675 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02676
02677 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02678 if (res_dest.tile == INVALID_TILE) {
02679
02680 if (mark_stuck) MarkTrainAsStuck(v);
02681 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02682 return FindFirstTrack(tracks);
02683 }
02684 }
02685
02686
02687 VehicleOrderSaver orders(v);
02688
02689
02690
02691
02692
02693
02694
02695 if (v->current_order.IsType(OT_LEAVESTATION)) {
02696 orders.SwitchToNextOrder(false);
02697 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02698 v->current_order.IsType(OT_GOTO_STATION) ?
02699 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02700 v->tile == v->dest_tile))) {
02701 orders.SwitchToNextOrder(true);
02702 }
02703
02704 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02705
02706 bool path_not_found = false;
02707 TileIndex new_tile = res_dest.tile;
02708
02709 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02710 if (new_tile == tile) best_track = next_track;
02711
02712
02713 if (path_not_found) {
02714
02715 if (!HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02716
02717 SetBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02718
02719 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02720 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02721 SetDParam(0, v->index);
02722 AddVehicleNewsItem(
02723 STR_NEWS_TRAIN_IS_LOST,
02724 NS_ADVICE,
02725 v->index
02726 );
02727 }
02728 }
02729 } else {
02730
02731 if (HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02732
02733 ClrBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02734
02735 }
02736 }
02737 }
02738
02739
02740 if (!do_track_reservation) return best_track;
02741
02742
02743 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02744 if (mark_stuck) MarkTrainAsStuck(v);
02745 FreeTrainTrackReservation(v);
02746 return best_track;
02747 }
02748
02749
02750 if (res_dest.tile == INVALID_TILE) {
02751
02752 PBSTileInfo origin = FollowTrainReservation(v);
02753 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02754 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02755 best_track = FindFirstTrack(res);
02756 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02757 if (got_reservation != NULL) *got_reservation = true;
02758 if (changed_signal) MarkTileDirtyByTile(tile);
02759 } else {
02760 FreeTrainTrackReservation(v);
02761 if (mark_stuck) MarkTrainAsStuck(v);
02762 }
02763 return best_track;
02764 }
02765
02766 if (got_reservation != NULL) *got_reservation = true;
02767
02768
02769 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02770
02771 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02772 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02773 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02774 if (_settings_game.pf.forbid_90_deg) {
02775 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02776 }
02777
02778
02779 if (orders.SwitchToNextOrder(true)) {
02780 PBSTileInfo cur_dest;
02781 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
02782 if (cur_dest.tile != INVALID_TILE) {
02783 res_dest = cur_dest;
02784 if (res_dest.okay) continue;
02785
02786 FreeTrainTrackReservation(v);
02787 if (mark_stuck) MarkTrainAsStuck(v);
02788 if (got_reservation != NULL) *got_reservation = false;
02789 changed_signal = false;
02790 break;
02791 }
02792 }
02793
02794 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02795 FreeTrainTrackReservation(v);
02796 if (mark_stuck) MarkTrainAsStuck(v);
02797 if (got_reservation != NULL) *got_reservation = false;
02798 changed_signal = false;
02799 }
02800 break;
02801 }
02802
02803 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02804
02805 if (changed_signal) MarkTileDirtyByTile(tile);
02806
02807 return best_track;
02808 }
02809
02818 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02819 {
02820 assert(v->IsFrontEngine());
02821
02822
02823
02824
02825 if (v->track == TRACK_BIT_DEPOT) {
02826 if (HasDepotReservation(v->tile)) {
02827 if (mark_as_stuck) MarkTrainAsStuck(v);
02828 return false;
02829 } else {
02830
02831 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02832 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02833 }
02834 }
02835
02836 Vehicle *other_train = NULL;
02837 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02838
02839
02840
02841
02842
02843 if (other_train != NULL && other_train->index != v->index) {
02844 if (mark_as_stuck) MarkTrainAsStuck(v);
02845 return false;
02846 }
02847
02848 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02849
02850 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02851 ClrBit(v->flags, VRF_TRAIN_STUCK);
02852 return true;
02853 }
02854
02855
02856 if (v->track == TRACK_BIT_DEPOT) {
02857 SetDepotReservation(v->tile, true);
02858 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02859 }
02860
02861 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02862 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02863 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02864
02865 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02866
02867 bool res_made = false;
02868 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02869
02870 if (!res_made) {
02871
02872 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02873 return false;
02874 }
02875
02876 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02877 v->wait_counter = 0;
02878 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02879 }
02880 ClrBit(v->flags, VRF_TRAIN_STUCK);
02881 return true;
02882 }
02883
02884
02885 static bool CheckReverseTrain(const Train *v)
02886 {
02887 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02888 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02889 !(v->direction & 1)) {
02890 return false;
02891 }
02892
02893 assert(v->track != TRACK_BIT_NONE);
02894
02895 switch (_settings_game.pf.pathfinder_for_trains) {
02896 case VPF_NPF: return NPFTrainCheckReverse(v);
02897 case VPF_YAPF: return YapfTrainCheckReverse(v);
02898
02899 default: NOT_REACHED();
02900 }
02901 }
02902
02903 TileIndex Train::GetOrderStationLocation(StationID station)
02904 {
02905 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02906
02907 const Station *st = Station::Get(station);
02908 if (!(st->facilities & FACIL_TRAIN)) {
02909
02910 this->IncrementOrderIndex();
02911 return 0;
02912 }
02913
02914 return st->xy;
02915 }
02916
02917 void Train::MarkDirty()
02918 {
02919 Vehicle *v = this;
02920 do {
02921 v->UpdateViewport(false, false);
02922 } while ((v = v->Next()) != NULL);
02923
02924
02925 this->CargoChanged();
02926 this->UpdateAcceleration();
02927 }
02928
02938 int Train::UpdateSpeed()
02939 {
02940 uint accel;
02941
02942 switch (_settings_game.vehicle.train_acceleration_model) {
02943 default: NOT_REACHED();
02944 case TAM_ORIGINAL: accel = this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2); break;
02945 case TAM_REALISTIC:
02946 this->max_speed = this->GetCurrentMaxSpeed();
02947 accel = this->GetAcceleration();
02948 break;
02949 }
02950
02951 uint spd = this->subspeed + accel;
02952 this->subspeed = (byte)spd;
02953 {
02954 int tempmax = this->max_speed;
02955 if (this->cur_speed > this->max_speed)
02956 tempmax = this->cur_speed - (this->cur_speed / 10) - 1;
02957 this->cur_speed = spd = Clamp(this->cur_speed + ((int)spd >> 8), 0, tempmax);
02958 }
02959
02960
02961
02962
02963
02964
02965
02966
02967
02968
02969
02970
02971 int scaled_spd = spd * 3 >> 2;
02972
02973 scaled_spd += this->progress;
02974 this->progress = 0;
02975 return scaled_spd;
02976 }
02977
02978 static void TrainEnterStation(Train *v, StationID station)
02979 {
02980 v->last_station_visited = station;
02981
02982
02983 Station *st = Station::Get(station);
02984 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02985 st->had_vehicle_of_type |= HVOT_TRAIN;
02986 SetDParam(0, st->index);
02987 AddVehicleNewsItem(
02988 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02989 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
02990 v->index,
02991 st->index
02992 );
02993 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
02994 }
02995
02996 v->BeginLoading();
02997
02998 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
02999 }
03000
03001 static byte AfterSetTrainPos(Train *v, bool new_tile)
03002 {
03003 byte old_z = v->z_pos;
03004 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03005
03006 if (new_tile) {
03007 ClrBit(v->flags, VRF_GOINGUP);
03008 ClrBit(v->flags, VRF_GOINGDOWN);
03009
03010 if (v->track == TRACK_BIT_X || v->track == TRACK_BIT_Y) {
03011
03012
03013
03014
03015
03016 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03017 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03018
03019 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03020
03021 if (middle_z != v->z_pos) {
03022 SetBit(v->flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03023 }
03024 }
03025 }
03026
03027 VehicleMove(v, true);
03028 return old_z;
03029 }
03030
03031
03032 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
03033 {
03034 return
03035 IsTileOwner(tile, v->owner) && (
03036 !v->IsFrontEngine() ||
03037 HasBit(v->compatible_railtypes, GetRailType(tile))
03038 );
03039 }
03040
03041 struct RailtypeSlowdownParams {
03042 byte small_turn, large_turn;
03043 byte z_up;
03044 byte z_down;
03045 };
03046
03047 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03048
03049 {256 / 4, 256 / 2, 256 / 4, 2},
03050 {256 / 4, 256 / 2, 256 / 4, 2},
03051 {256 / 4, 256 / 2, 256 / 4, 2},
03052 {0, 256 / 2, 256 / 4, 2},
03053 };
03054
03056 static inline void AffectSpeedByZChange(Train *v, byte old_z)
03057 {
03058 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03059
03060 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03061
03062 if (old_z < v->z_pos) {
03063 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03064 } else {
03065 uint16 spd = v->cur_speed + rsp->z_down;
03066 if (spd <= v->max_speed) v->cur_speed = spd;
03067 }
03068 }
03069
03070 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03071 {
03072 if (IsTileType(tile, MP_RAILWAY) &&
03073 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03074 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03075 Trackdir trackdir = FindFirstTrackdir(tracks);
03076 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03077
03078 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03079 }
03080 }
03081 return false;
03082 }
03083
03087 void Train::ReserveTrackUnderConsist() const
03088 {
03089 for (const Train *u = this; u != NULL; u = u->Next()) {
03090 switch (u->track) {
03091 case TRACK_BIT_WORMHOLE:
03092 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
03093 break;
03094 case TRACK_BIT_DEPOT:
03095 break;
03096 default:
03097 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
03098 break;
03099 }
03100 }
03101 }
03102
03103 uint Train::Crash(bool flooded)
03104 {
03105 uint pass = 0;
03106 if (this->IsFrontEngine()) {
03107 pass += 4;
03108
03109
03110
03111 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
03112 for (const Train *v = this; v != NULL; v = v->Next()) {
03113 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03114 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
03115
03116
03117 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
03118 }
03119 }
03120
03121
03122
03123 TileIndex crossing = TrainApproachingCrossingTile(this);
03124 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03125 }
03126
03127 pass += Vehicle::Crash(flooded);
03128
03129 this->crash_anim_pos = flooded ? 4000 : 1;
03130 return pass;
03131 }
03132
03139 static uint TrainCrashed(Train *v)
03140 {
03141 uint num = 0;
03142
03143
03144 if (!(v->vehstatus & VS_CRASHED)) {
03145 num = v->Crash();
03146 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03147 }
03148
03149
03150
03151 v->ReserveTrackUnderConsist();
03152
03153 return num;
03154 }
03155
03156 struct TrainCollideChecker {
03157 Train *v;
03158 uint num;
03159 };
03160
03161 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03162 {
03163 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03164
03165
03166 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
03167
03168
03169 Train *coll = Train::From(v)->First();
03170
03171
03172 if (coll == tcc->v) return NULL;
03173
03174 int x_diff = v->x_pos - tcc->v->x_pos;
03175 int y_diff = v->y_pos - tcc->v->y_pos;
03176
03177
03178
03179
03180
03181 uint hash = (y_diff + 7) | (x_diff + 7);
03182 if (hash & ~15) return NULL;
03183
03184
03185 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03186
03187
03188 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
03189
03190
03191 tcc->num += TrainCrashed(tcc->v);
03192 tcc->num += TrainCrashed(coll);
03193
03194 return NULL;
03195 }
03196
03203 static bool CheckTrainCollision(Train *v)
03204 {
03205
03206 if (v->track == TRACK_BIT_DEPOT) return false;
03207
03208 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03209
03210 TrainCollideChecker tcc;
03211 tcc.v = v;
03212 tcc.num = 0;
03213
03214
03215 if (v->track == TRACK_BIT_WORMHOLE) {
03216 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03217 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03218 } else {
03219 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03220 }
03221
03222
03223 if (tcc.num == 0) return false;
03224
03225 SetDParam(0, tcc.num);
03226 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
03227 NS_ACCIDENT,
03228 v->index
03229 );
03230
03231 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03232 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03233 return true;
03234 }
03235
03236 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03237 {
03238 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03239
03240 Train *t = Train::From(v);
03241 DiagDirection exitdir = *(DiagDirection *)data;
03242
03243
03244 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03245
03246 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03247
03248 return t;
03249 }
03250
03251 static void TrainController(Train *v, Vehicle *nomove)
03252 {
03253 Train *first = v->First();
03254 Train *prev;
03255 bool direction_changed = false;
03256
03257
03258 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03259 DiagDirection enterdir = DIAGDIR_BEGIN;
03260 bool update_signals_crossing = false;
03261
03262 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03263 if (v->track != TRACK_BIT_WORMHOLE) {
03264
03265 if (gp.old_tile == gp.new_tile) {
03266
03267 if (v->track == TRACK_BIT_DEPOT) {
03268
03269 gp.x = v->x_pos;
03270 gp.y = v->y_pos;
03271 } else {
03272
03273
03274
03275 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v)) return;
03276
03277 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03278 if (HasBit(r, VETS_CANNOT_ENTER)) {
03279 goto invalid_rail;
03280 }
03281 if (HasBit(r, VETS_ENTERED_STATION)) {
03282
03283 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03284 }
03285 }
03286 } else {
03287
03288
03289
03290 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03291 assert(IsValidDiagDirection(enterdir));
03292
03293
03294
03295 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03296 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03297
03298 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03299 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03300
03301 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03302 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03303
03304
03305 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03306 }
03307
03308 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03309
03310
03311
03312 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03313
03314 TrackBits chosen_track;
03315 if (prev == NULL) {
03316
03317
03318 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03319 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03320
03321 if (v->force_proceed != 0 && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03322
03323
03324
03325
03326 Trackdir dir = FindFirstTrackdir(trackdirbits);
03327 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03328 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03329
03330
03331 v->force_proceed--;
03332 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03333 }
03334 }
03335
03336
03337 if ((red_signals & chosen_track) && v->force_proceed == 0) {
03338
03339 Trackdir i = FindFirstTrackdir(trackdirbits);
03340
03341
03342 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return;
03343
03344 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03345 v->cur_speed = 0;
03346 v->subspeed = 0;
03347 v->progress = 255 - 100;
03348 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return;
03349 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03350 v->cur_speed = 0;
03351 v->subspeed = 0;
03352 v->progress = 255 - 10;
03353 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03354 DiagDirection exitdir = TrackdirToExitdir(i);
03355 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03356
03357 exitdir = ReverseDiagDir(exitdir);
03358
03359
03360 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return;
03361 }
03362 }
03363
03364
03365
03366 if (_settings_game.pf.wait_for_pbs_path == 255 && UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03367 v->wait_counter = 0;
03368 return;
03369 }
03370 goto reverse_train_direction;
03371 } else {
03372 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03373 }
03374 } else {
03375
03376 if (prev->tile == gp.new_tile) {
03377
03378 if (prev->track == TRACK_BIT_WORMHOLE) {
03379
03380
03381 assert(IsTunnel(prev->tile));
03382 chosen_track = bits;
03383 } else {
03384 chosen_track = prev->track;
03385 }
03386 } else {
03387
03388
03389
03390
03391
03392
03393
03394 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03395 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03396 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03397 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03398 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03399 };
03400 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03401 assert(IsValidDiagDirection(exitdir));
03402 chosen_track = _connecting_track[enterdir][exitdir];
03403 }
03404 chosen_track &= bits;
03405 }
03406
03407
03408 assert(
03409 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03410 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03411 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03412
03413
03414 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03415 gp.x = (gp.x & ~0xF) | b[0];
03416 gp.y = (gp.y & ~0xF) | b[1];
03417 Direction chosen_dir = (Direction)b[2];
03418
03419
03420 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03421 if (HasBit(r, VETS_CANNOT_ENTER)) {
03422 goto invalid_rail;
03423 }
03424
03425 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03426 Track track = FindFirstTrack(chosen_track);
03427 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03428 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03429 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03430 MarkTileDirtyByTile(gp.new_tile);
03431 }
03432
03433
03434 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03435
03436 v->tile = gp.new_tile;
03437
03438 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03439 v->First()->PowerChanged();
03440 }
03441
03442 v->track = chosen_track;
03443 assert(v->track);
03444 }
03445
03446
03447
03448 update_signals_crossing = true;
03449
03450 if (chosen_dir != v->direction) {
03451 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == TAM_ORIGINAL) {
03452 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03453 DirDiff diff = DirDifference(v->direction, chosen_dir);
03454 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03455 }
03456 direction_changed = true;
03457 v->direction = chosen_dir;
03458 }
03459
03460 if (v->IsFrontEngine()) {
03461 v->wait_counter = 0;
03462
03463
03464 TileIndex crossing = TrainApproachingCrossingTile(v);
03465 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03466
03467
03468 CheckNextTrainTile(v);
03469 }
03470
03471 if (HasBit(r, VETS_ENTERED_STATION)) {
03472
03473 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03474 }
03475 }
03476 } else {
03477
03478
03479
03480 if (!(v->vehstatus & VS_HIDDEN)) {
03481 v->cur_speed =
03482 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03483 }
03484
03485 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03486
03487 if (v->IsFrontEngine()) {
03488 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03489 CheckNextTrainTile(v);
03490 }
03491 } else {
03492 v->x_pos = gp.x;
03493 v->y_pos = gp.y;
03494 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03495 continue;
03496 }
03497 }
03498
03499
03500 v->UpdateDeltaXY(v->direction);
03501
03502 v->x_pos = gp.x;
03503 v->y_pos = gp.y;
03504
03505
03506 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03507
03508 if (prev == NULL) {
03509
03510 AffectSpeedByZChange(v, old_z);
03511 }
03512
03513 if (update_signals_crossing) {
03514 if (v->IsFrontEngine()) {
03515 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03516
03517
03518
03519
03520
03521
03522
03523
03524 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03525 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03526 !TryPathReserve(v)) {
03527 MarkTrainAsStuck(v);
03528 }
03529 }
03530 }
03531
03532
03533
03534 if (v->Next() == NULL) {
03535 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03536 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03537 }
03538 }
03539
03540
03541 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03542 }
03543
03544 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03545
03546 return;
03547
03548 invalid_rail:
03549
03550 if (prev != NULL) error("Disconnecting train");
03551
03552 reverse_train_direction:
03553 v->wait_counter = 0;
03554 v->cur_speed = 0;
03555 v->subspeed = 0;
03556 ReverseTrainDirection(v);
03557 }
03558
03564 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03565 {
03566 TrackBits *trackbits = (TrackBits *)data;
03567
03568 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03569 if (Train::From(v)->track == TRACK_BIT_WORMHOLE) {
03570
03571 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03572 } else {
03573 *trackbits |= Train::From(v)->track;
03574 }
03575 }
03576
03577 return NULL;
03578 }
03579
03587 static void DeleteLastWagon(Train *v)
03588 {
03589 Train *first = v->First();
03590
03591
03592
03593
03594 Train *u = v;
03595 for (; v->Next() != NULL; v = v->Next()) u = v;
03596 u->SetNext(NULL);
03597
03598 if (first != v) {
03599
03600 first->ConsistChanged(false);
03601
03602
03603 if (first->track == TRACK_BIT_DEPOT) {
03604 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03605 }
03606 }
03607
03608
03609 TrackBits trackbits = v->track;
03610 TileIndex tile = v->tile;
03611 Owner owner = v->owner;
03612
03613 delete v;
03614 v = NULL;
03615
03616 if (trackbits == TRACK_BIT_WORMHOLE) {
03617
03618 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03619 }
03620
03621 Track track = TrackBitsToTrack(trackbits);
03622 if (HasReservedTracks(tile, trackbits)) {
03623 UnreserveRailTrack(tile, track);
03624
03625
03626 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03627 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03628
03629
03630 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03631 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03632 if (HasBit(remaining_trackbits, t)) {
03633 TryReserveRailTrack(tile, t);
03634 }
03635 }
03636 }
03637
03638
03639 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03640
03641
03642 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03643 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03644 } else {
03645 SetSignalsOnBothDir(tile, track, owner);
03646 }
03647 }
03648
03649 static void ChangeTrainDirRandomly(Train *v)
03650 {
03651 static const DirDiff delta[] = {
03652 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03653 };
03654
03655 do {
03656
03657 if (!(v->vehstatus & VS_HIDDEN)) {
03658 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03659 v->UpdateDeltaXY(v->direction);
03660 v->cur_image = v->GetImage(v->direction);
03661
03662
03663
03664 if (v->track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
03665 }
03666 } while ((v = v->Next()) != NULL);
03667 }
03668
03669 static bool HandleCrashedTrain(Train *v)
03670 {
03671 int state = ++v->crash_anim_pos;
03672
03673 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03674 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03675 }
03676
03677 uint32 r;
03678 if (state <= 200 && Chance16R(1, 7, r)) {
03679 int index = (r * 10 >> 16);
03680
03681 Vehicle *u = v;
03682 do {
03683 if (--index < 0) {
03684 r = Random();
03685
03686 CreateEffectVehicleRel(u,
03687 GB(r, 8, 3) + 2,
03688 GB(r, 16, 3) + 2,
03689 GB(r, 0, 3) + 5,
03690 EV_EXPLOSION_SMALL);
03691 break;
03692 }
03693 } while ((u = u->Next()) != NULL);
03694 }
03695
03696 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03697
03698 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03699 bool ret = v->Next() != NULL;
03700 DeleteLastWagon(v);
03701 return ret;
03702 }
03703
03704 return true;
03705 }
03706
03707 static void HandleBrokenTrain(Train *v)
03708 {
03709 if (v->breakdown_ctr != 1) {
03710 v->breakdown_ctr = 1;
03711 v->cur_speed = 0;
03712
03713 if (v->breakdowns_since_last_service != 255)
03714 v->breakdowns_since_last_service++;
03715
03716 v->MarkDirty();
03717 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03718 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
03719
03720 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
03721 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
03722 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
03723 }
03724
03725 if (!(v->vehstatus & VS_HIDDEN)) {
03726 EffectVehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
03727 if (u != NULL) u->animation_state = v->breakdown_delay * 2;
03728 }
03729 }
03730
03731 if (!(v->tick_counter & 3)) {
03732 if (!--v->breakdown_delay) {
03733 v->breakdown_ctr = 0;
03734 v->MarkDirty();
03735 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03736 }
03737 }
03738 }
03739
03741 static const uint16 _breakdown_speeds[16] = {
03742 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03743 };
03744
03745
03753 static bool TrainApproachingLineEnd(Train *v, bool signal)
03754 {
03755
03756 uint x = v->x_pos & 0xF;
03757 uint y = v->y_pos & 0xF;
03758
03759
03760
03761 switch (v->direction) {
03762 case DIR_N : x = ~x + ~y + 25; break;
03763 case DIR_NW: x = y;
03764 case DIR_NE: x = ~x + 16; break;
03765 case DIR_E : x = ~x + y + 9; break;
03766 case DIR_SE: x = y; break;
03767 case DIR_S : x = x + y - 7; break;
03768 case DIR_W : x = ~y + x + 9; break;
03769 default: break;
03770 }
03771
03772
03773 if (!signal && x + (v->tcache.cached_veh_length + 1) / 2 >= TILE_SIZE) {
03774
03775 v->cur_speed = 0;
03776 ReverseTrainDirection(v);
03777 return false;
03778 }
03779
03780
03781 v->vehstatus |= VS_TRAIN_SLOWING;
03782 uint16 break_speed = _breakdown_speeds[x & 0xF];
03783 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03784
03785 return true;
03786 }
03787
03788
03794 static bool TrainCanLeaveTile(const Train *v)
03795 {
03796
03797 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03798
03799 TileIndex tile = v->tile;
03800
03801
03802 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03803 DiagDirection dir = GetTunnelBridgeDirection(tile);
03804 if (DiagDirToDir(dir) == v->direction) return false;
03805 }
03806
03807
03808 if (IsRailDepotTile(tile)) {
03809 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03810 if (DiagDirToDir(dir) == v->direction) return false;
03811 }
03812
03813 return true;
03814 }
03815
03816
03824 static TileIndex TrainApproachingCrossingTile(const Train *v)
03825 {
03826 assert(v->IsFrontEngine());
03827 assert(!(v->vehstatus & VS_CRASHED));
03828
03829 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03830
03831 DiagDirection dir = TrainExitDir(v->direction, v->track);
03832 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03833
03834
03835 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03836 !CheckCompatibleRail(v, tile)) {
03837 return INVALID_TILE;
03838 }
03839
03840 return tile;
03841 }
03842
03843
03850 static bool TrainCheckIfLineEnds(Train *v)
03851 {
03852
03853
03854 int t = v->breakdown_ctr;
03855 if (t > 1) {
03856 v->vehstatus |= VS_TRAIN_SLOWING;
03857
03858 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03859 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03860 } else {
03861 v->vehstatus &= ~VS_TRAIN_SLOWING;
03862 }
03863
03864 if (!TrainCanLeaveTile(v)) return true;
03865
03866
03867 DiagDirection dir = TrainExitDir(v->direction, v->track);
03868
03869 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03870
03871
03872 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03873 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03874
03875 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03876 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03877
03878
03879
03880
03881 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03882 if (_settings_game.pf.forbid_90_deg) {
03883 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03884 }
03885
03886
03887 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03888 return TrainApproachingLineEnd(v, false);
03889 }
03890
03891
03892 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
03893
03894
03895 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03896
03897 return true;
03898 }
03899
03900
03901 static bool TrainLocoHandler(Train *v, bool mode)
03902 {
03903
03904 if (v->vehstatus & VS_CRASHED) {
03905 return mode ? true : HandleCrashedTrain(v);
03906 }
03907
03908 if (v->force_proceed != 0) {
03909 ClrBit(v->flags, VRF_TRAIN_STUCK);
03910 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03911 }
03912
03913
03914 if (v->breakdown_ctr != 0) {
03915 if (v->breakdown_ctr <= 2) {
03916 HandleBrokenTrain(v);
03917 return true;
03918 }
03919 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
03920 }
03921
03922 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03923 ReverseTrainDirection(v);
03924 }
03925
03926
03927 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03928
03929 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03930 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03931 v->wait_counter = 0;
03932 v->cur_speed = 0;
03933 v->subspeed = 0;
03934 ReverseTrainDirection(v);
03935 return true;
03936 }
03937
03938 v->HandleLoading(mode);
03939
03940 if (v->current_order.IsType(OT_LOADING)) return true;
03941
03942 if (CheckTrainStayInDepot(v)) return true;
03943
03944 if (!mode) HandleLocomotiveSmokeCloud(v);
03945
03946
03947 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03948 CheckNextTrainTile(v);
03949 }
03950
03951
03952 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03953 ++v->wait_counter;
03954
03955
03956 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.wait_for_pbs_path < 255;
03957
03958 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == 0) return true;
03959 if (!TryPathReserve(v)) {
03960
03961 if (turn_around) ReverseTrainDirection(v);
03962
03963 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03964
03965 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
03966 SetDParam(0, v->index);
03967 AddVehicleNewsItem(
03968 STR_NEWS_TRAIN_IS_STUCK,
03969 NS_ADVICE,
03970 v->index
03971 );
03972 }
03973 v->wait_counter = 0;
03974 }
03975
03976 if (v->force_proceed == 0) return true;
03977 ClrBit(v->flags, VRF_TRAIN_STUCK);
03978 v->wait_counter = 0;
03979 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03980 }
03981 }
03982
03983 if (v->current_order.IsType(OT_LEAVESTATION)) {
03984 v->current_order.Free();
03985 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03986 return true;
03987 }
03988
03989 int j = v->UpdateSpeed();
03990
03991
03992 if (v->cur_speed == 0 && v->tcache.last_speed == 0 && (v->vehstatus & VS_STOPPED)) {
03993
03994 v->force_proceed = 0;
03995 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03996 }
03997
03998 int adv_spd = (v->direction & 1) ? 192 : 256;
03999 if (j < adv_spd) {
04000
04001 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04002 } else {
04003 TrainCheckIfLineEnds(v);
04004
04005 for (;;) {
04006 j -= adv_spd;
04007 TrainController(v, NULL);
04008
04009 if (CheckTrainCollision(v)) break;
04010
04011 adv_spd = (v->direction & 1) ? 192 : 256;
04012
04013
04014 if (j < adv_spd || v->cur_speed == 0) break;
04015
04016 OrderType order_type = v->current_order.GetType();
04017
04018 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
04019 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
04020 IsTileType(v->tile, MP_STATION) &&
04021 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
04022 ProcessOrders(v);
04023 }
04024 }
04025 SetLastSpeed(v, v->cur_speed);
04026 }
04027
04028 for (Train *u = v; u != NULL; u = u->Next()) {
04029 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04030
04031 u->UpdateViewport(false, false);
04032 }
04033
04034 if (v->progress == 0) v->progress = j;
04035
04036 return true;
04037 }
04038
04039
04040
04041 Money Train::GetRunningCost() const
04042 {
04043 Money cost = 0;
04044 const Train *v = this;
04045
04046 do {
04047 const Engine *e = Engine::Get(v->engine_type);
04048 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
04049
04050 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
04051 if (cost_factor == 0) continue;
04052
04053
04054 if (v->IsMultiheaded()) cost_factor /= 2;
04055
04056 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->grffile);
04057 } while ((v = v->GetNextVehicle()) != NULL);
04058
04059 return cost;
04060 }
04061
04062
04063 bool Train::Tick()
04064 {
04065 this->tick_counter++;
04066
04067 if (this->IsFrontEngine()) {
04068 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04069
04070 this->current_order_time++;
04071
04072 if (!TrainLocoHandler(this, false)) return false;
04073
04074 return TrainLocoHandler(this, true);
04075 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
04076
04077 if (++this->crash_anim_pos >= 4400) {
04078 delete this;
04079 return false;
04080 }
04081 }
04082
04083 return true;
04084 }
04085
04086 static void CheckIfTrainNeedsService(Train *v)
04087 {
04088 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04089 if (v->IsInDepot()) {
04090 VehicleServiceInDepot(v);
04091 return;
04092 }
04093
04094 uint max_penalty;
04095 switch (_settings_game.pf.pathfinder_for_trains) {
04096 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
04097 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
04098 default: NOT_REACHED();
04099 }
04100
04101 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
04102
04103 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
04104 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04105
04106
04107
04108 v->current_order.MakeDummy();
04109 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04110 }
04111 return;
04112 }
04113
04114 DepotID depot = GetDepotIndex(tfdd.tile);
04115
04116 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04117 v->current_order.GetDestination() != depot &&
04118 !Chance16(3, 16)) {
04119 return;
04120 }
04121
04122 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
04123 v->dest_tile = tfdd.tile;
04124 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04125 }
04126
04127 void Train::OnNewDay()
04128 {
04129 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04130
04131 if (this->IsFrontEngine()) {
04132 CheckVehicleBreakdown(this);
04133 AgeVehicle(this);
04134
04135 CheckIfTrainNeedsService(this);
04136
04137 CheckOrders(this);
04138
04139
04140 if (this->current_order.IsType(OT_GOTO_STATION)) {
04141 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
04142 if (tile != INVALID_TILE) this->dest_tile = tile;
04143 }
04144
04145 if (this->running_ticks != 0) {
04146
04147 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04148
04149 this->profit_this_year -= cost.GetCost();
04150 this->running_ticks = 0;
04151
04152 SubtractMoneyFromCompanyFract(this->owner, cost);
04153
04154 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
04155 SetWindowClassesDirty(WC_TRAINS_LIST);
04156 }
04157 } else if (this->IsEngine()) {
04158
04159 AgeVehicle(this);
04160 }
04161 }
04162
04163 Trackdir Train::GetVehicleTrackdir() const
04164 {
04165 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
04166
04167 if (this->track == TRACK_BIT_DEPOT) {
04168
04169 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
04170 }
04171
04172 if (this->track == TRACK_BIT_WORMHOLE) {
04173
04174 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
04175 }
04176
04177 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
04178 }