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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 uint16 max_rail_speed = this->tcache.cached_max_speed;
00103
00104 for (const Train *u = this; u != NULL; u = u->Next()) {
00105 uint32 current_power = u->GetPower();
00106 total_power += current_power;
00107
00108
00109 if (current_power > 0) max_te += u->GetWeight() * u->GetTractiveEffort();
00110 total_power += u->GetPoweredPartPower(this);
00111 number_of_parts++;
00112
00113
00114 uint16 rail_speed = GetRailTypeInfo(GetRailType(u->tile))->max_speed;
00115 if (rail_speed > 0) max_rail_speed = min(max_rail_speed, rail_speed);
00116 }
00117
00118 this->tcache.cached_axle_resistance = 60 * number_of_parts;
00119 this->tcache.cached_air_drag = 20 + 3 * number_of_parts;
00120
00121 max_te *= 10000;
00122 max_te /= 256;
00123 if (this->tcache.cached_power != total_power || this->tcache.cached_max_te != max_te) {
00124
00125 if (total_power == 0) this->vehstatus |= VS_STOPPED;
00126
00127 this->tcache.cached_power = total_power;
00128 this->tcache.cached_max_te = max_te;
00129 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00130 SetWindowWidgetDirty(WC_VEHICLE_VIEW, this->index, VVW_WIDGET_START_STOP_VEH);
00131 }
00132
00133 this->tcache.cached_max_rail_speed = max_rail_speed;
00134 }
00135
00136
00141 void Train::CargoChanged()
00142 {
00143 assert(this->First() == this);
00144 uint32 weight = 0;
00145
00146 for (Train *u = this; u != NULL; u = u->Next()) {
00147 uint32 current_weight = u->GetWeight();
00148 weight += current_weight;
00149 u->tcache.cached_slope_resistance = current_weight * u->GetSlopeSteepness();
00150 }
00151
00152
00153 this->tcache.cached_weight = weight;
00154
00155
00156 this->PowerChanged();
00157 }
00158
00159
00164 static void RailVehicleLengthChanged(const Train *u)
00165 {
00166
00167 const Engine *engine = Engine::Get(u->engine_type);
00168 uint32 grfid = engine->grffile->grfid;
00169 GRFConfig *grfconfig = GetGRFConfig(grfid);
00170 if (GamelogGRFBugReverse(grfid, engine->internal_id) || !HasBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH)) {
00171 ShowNewGrfVehicleError(u->engine_type, STR_NEWGRF_BROKEN, STR_NEWGRF_BROKEN_VEHICLE_LENGTH, GBUG_VEH_LENGTH, true);
00172 }
00173 }
00174
00176 void CheckTrainsLengths()
00177 {
00178 const Train *v;
00179
00180 FOR_ALL_TRAINS(v) {
00181 if (v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00182 for (const Train *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00183 if (u->track != TRACK_BIT_DEPOT) {
00184 if ((w->track != TRACK_BIT_DEPOT &&
00185 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->tcache.cached_veh_length) ||
00186 (w->track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00187 SetDParam(0, v->index);
00188 SetDParam(1, v->owner);
00189 ShowErrorMessage(STR_BROKEN_VEHICLE_LENGTH, INVALID_STRING_ID, 0, 0, true);
00190
00191 if (!_networking) DoCommandP(0, PM_PAUSED_ERROR, 1, CMD_PAUSE);
00192 }
00193 }
00194 }
00195 }
00196 }
00197 }
00198
00205 void Train::ConsistChanged(bool same_length)
00206 {
00207 uint16 max_speed = UINT16_MAX;
00208
00209 assert(this->IsFrontEngine() || this->IsFreeWagon());
00210
00211 const RailVehicleInfo *rvi_v = RailVehInfo(this->engine_type);
00212 EngineID first_engine = this->IsFrontEngine() ? this->engine_type : INVALID_ENGINE;
00213 this->tcache.cached_total_length = 0;
00214 this->compatible_railtypes = RAILTYPES_NONE;
00215
00216 bool train_can_tilt = true;
00217
00218 for (Train *u = this; u != NULL; u = u->Next()) {
00219 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00220
00221
00222 assert(u->First() == this);
00223
00224
00225 u->tcache.first_engine = this == u ? INVALID_ENGINE : first_engine;
00226 u->railtype = rvi_u->railtype;
00227
00228 if (u->IsEngine()) first_engine = u->engine_type;
00229
00230
00231 u->tcache.user_def_data = rvi_u->user_def_data;
00232 this->InvalidateNewGRFCache();
00233 u->InvalidateNewGRFCache();
00234 }
00235
00236 for (Train *u = this; u != NULL; u = u->Next()) {
00237
00238 u->tcache.user_def_data = GetVehicleProperty(u, PROP_TRAIN_USER_DATA, u->tcache.user_def_data);
00239 this->InvalidateNewGRFCache();
00240 u->InvalidateNewGRFCache();
00241 }
00242
00243 for (Train *u = this; u != NULL; u = u->Next()) {
00244 const Engine *e_u = Engine::Get(u->engine_type);
00245 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00246
00247 if (!HasBit(e_u->info.misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00248
00249
00250 u->tcache.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->tcache.first_engine);
00251
00252
00253 u->colourmap = PAL_NONE;
00254
00255 if (rvi_u->visual_effect != 0) {
00256 u->tcache.cached_vis_effect = rvi_u->visual_effect;
00257 } else {
00258 if (u->IsWagon() || u->IsArticulatedPart()) {
00259
00260 u->tcache.cached_vis_effect = 0x40;
00261 } else if (rvi_u->engclass == 0) {
00262
00263 u->tcache.cached_vis_effect = 4;
00264 } else {
00265
00266 u->tcache.cached_vis_effect = 8;
00267 }
00268 }
00269
00270
00271 if (HasBit(e_u->info.callback_mask, CBM_TRAIN_WAGON_POWER)) {
00272 uint16 callback = GetVehicleCallback(CBID_TRAIN_WAGON_POWER, 0, 0, u->engine_type, u);
00273
00274 if (callback != CALLBACK_FAILED) u->tcache.cached_vis_effect = GB(callback, 0, 8);
00275 }
00276
00277 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00278 UsesWagonOverride(u) && !HasBit(u->tcache.cached_vis_effect, 7)) {
00279
00280 SetBit(u->flags, VRF_POWEREDWAGON);
00281 } else {
00282 ClrBit(u->flags, VRF_POWEREDWAGON);
00283 }
00284
00285 if (!u->IsArticulatedPart()) {
00286
00287
00288 if (rvi_u->power > 0) {
00289 this->compatible_railtypes |= GetRailTypeInfo(u->railtype)->powered_railtypes;
00290 }
00291
00292
00293
00294 if (HasBit(u->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00295 u->railtype = RAILTYPE_RAIL;
00296 u->compatible_railtypes |= RAILTYPES_RAIL;
00297 }
00298
00299
00300 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00301 uint16 speed = GetVehicleProperty(u, PROP_TRAIN_SPEED, rvi_u->max_speed);
00302 if (speed != 0) max_speed = min(speed, max_speed);
00303 }
00304 }
00305
00306 u->cargo_cap = GetVehicleCapacity(u);
00307
00308
00309 uint16 veh_len = CALLBACK_FAILED;
00310 if (HasBit(e_u->info.callback_mask, CBM_VEHICLE_LENGTH)) {
00311 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00312 }
00313 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00314 veh_len = 8 - Clamp(veh_len, 0, 7);
00315
00316
00317 if (same_length && veh_len != u->tcache.cached_veh_length) RailVehicleLengthChanged(u);
00318
00319
00320 if (!same_length) u->tcache.cached_veh_length = veh_len;
00321
00322 this->tcache.cached_total_length += u->tcache.cached_veh_length;
00323 this->InvalidateNewGRFCache();
00324 u->InvalidateNewGRFCache();
00325 }
00326
00327
00328 this->tcache.cached_max_speed = max_speed;
00329 this->tcache.cached_tilt = train_can_tilt;
00330 this->tcache.cached_max_curve_speed = this->GetCurveSpeedLimit();
00331
00332
00333 this->CargoChanged();
00334
00335 if (this->IsFrontEngine()) {
00336 this->UpdateAcceleration();
00337 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00338 }
00339 }
00340
00351 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length)
00352 {
00353 const Station *st = Station::Get(station_id);
00354 *station_ahead = st->GetPlatformLength(tile, DirToDiagDir(v->direction)) * TILE_SIZE;
00355 *station_length = st->GetPlatformLength(tile) * TILE_SIZE;
00356
00357
00358
00359 OrderStopLocation osl = OSL_PLATFORM_MIDDLE;
00360 if (v->tcache.cached_total_length >= *station_length) {
00361
00362 osl = OSL_PLATFORM_FAR_END;
00363 } else if (v->current_order.IsType(OT_GOTO_STATION) && v->current_order.GetDestination() == station_id) {
00364 osl = v->current_order.GetStopLocation();
00365 }
00366
00367
00368 int stop;
00369 switch (osl) {
00370 default: NOT_REACHED();
00371
00372 case OSL_PLATFORM_NEAR_END:
00373 stop = v->tcache.cached_total_length;
00374 break;
00375
00376 case OSL_PLATFORM_MIDDLE:
00377 stop = *station_length - (*station_length - v->tcache.cached_total_length) / 2;
00378 break;
00379
00380 case OSL_PLATFORM_FAR_END:
00381 stop = *station_length;
00382 break;
00383 }
00384
00385
00386
00387 return stop - (v->tcache.cached_veh_length + 1) / 2;
00388 }
00389
00390
00395 int Train::GetCurveSpeedLimit() const
00396 {
00397 assert(this->First() == this);
00398
00399 static const int absolute_max_speed = UINT16_MAX;
00400 int max_speed = absolute_max_speed;
00401
00402 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return max_speed;
00403
00404 int curvecount[2] = {0, 0};
00405
00406
00407 int numcurve = 0;
00408 int sum = 0;
00409 int pos = 0;
00410 int lastpos = -1;
00411 for (const Vehicle *u = this; u->Next() != NULL; u = u->Next(), pos++) {
00412 Direction this_dir = u->direction;
00413 Direction next_dir = u->Next()->direction;
00414
00415 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00416 if (dirdiff == DIRDIFF_SAME) continue;
00417
00418 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00419 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00420 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00421 if (lastpos != -1) {
00422 numcurve++;
00423 sum += pos - lastpos;
00424 if (pos - lastpos == 1) {
00425 max_speed = 88;
00426 }
00427 }
00428 lastpos = pos;
00429 }
00430
00431
00432 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00433 max_speed = 61;
00434 }
00435 }
00436
00437 if (numcurve > 0 && max_speed > 88) {
00438 if (curvecount[0] == 1 && curvecount[1] == 1) {
00439 max_speed = absolute_max_speed;
00440 } else {
00441 sum /= numcurve;
00442 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00443 }
00444 }
00445
00446 if (max_speed != absolute_max_speed) {
00447
00448 const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00449 max_speed += (max_speed / 2) * rti->curve_speed;
00450
00451 if (this->tcache.cached_tilt) {
00452
00453 max_speed += max_speed / 5;
00454 }
00455 }
00456
00457 return max_speed;
00458 }
00459
00464 int Train::GetCurrentMaxSpeed() const
00465 {
00466 int max_speed = this->tcache.cached_max_curve_speed;
00467 assert(max_speed == this->GetCurveSpeedLimit());
00468
00469 if (IsRailStationTile(this->tile)) {
00470 StationID sid = GetStationIndex(this->tile);
00471 if (this->current_order.ShouldStopAtStation(this, sid)) {
00472 int station_ahead;
00473 int station_length;
00474 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00475
00476
00477
00478 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00479
00480 if (distance_to_go > 0) {
00481 int st_max_speed = 120;
00482
00483 int delta_v = this->cur_speed / (distance_to_go + 1);
00484 if (this->max_speed > (this->cur_speed - delta_v)) {
00485 st_max_speed = this->cur_speed - (delta_v / 10);
00486 }
00487
00488 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00489 max_speed = min(max_speed, st_max_speed);
00490 }
00491 }
00492 }
00493
00494 for (const Train *u = this; u != NULL; u = u->Next()) {
00495 if (u->track == TRACK_BIT_DEPOT) {
00496 max_speed = min(max_speed, 61);
00497 break;
00498 }
00499 }
00500
00501 return min(max_speed, this->tcache.cached_max_rail_speed);
00502 }
00503
00509 int Train::GetAcceleration() const
00510 {
00511 int32 speed = this->GetCurrentSpeed();
00512
00513
00514 int32 mass = this->tcache.cached_weight;
00515
00516
00517 int32 power = this->tcache.cached_power * 746;
00518
00519 int32 resistance = 0;
00520
00521 bool maglev = this->GetAccelerationType() == 2;
00522
00523 const int area = 120;
00524 if (!maglev) {
00525 resistance = (13 * mass) / 10;
00526 resistance += this->tcache.cached_axle_resistance;
00527 resistance += (this->GetRollingFriction() * mass * speed) / 1000;
00528 resistance += (area * this->tcache.cached_air_drag * speed * speed) / 10000;
00529 } else {
00530 resistance += (area * this->tcache.cached_air_drag * speed * speed) / 20000;
00531 }
00532
00533 resistance += this->GetSlopeResistance();
00534 resistance *= 4;
00535
00536
00537 AccelStatus mode = this->GetAccelerationStatus();
00538
00539 const int max_te = this->tcache.cached_max_te;
00540 int force;
00541 if (speed > 0) {
00542 if (!maglev) {
00543 force = power / speed;
00544 force *= 22;
00545 force /= 10;
00546 if (mode == AS_ACCEL && force > max_te) force = max_te;
00547 } else {
00548 force = power / 25;
00549 }
00550 } else {
00551
00552 force = (mode == AS_ACCEL && !maglev) ? min(max_te, power) : power;
00553 force = max(force, (mass * 8) + resistance);
00554 }
00555
00556 if (mode == AS_ACCEL) {
00557 return (force - resistance) / (mass * 2);
00558 } else {
00559 return min(-force - resistance, -10000) / mass;
00560 }
00561 }
00562
00563 void Train::UpdateAcceleration()
00564 {
00565 assert(this->IsFrontEngine());
00566
00567 this->max_speed = this->tcache.cached_max_rail_speed;
00568
00569 uint power = this->tcache.cached_power;
00570 uint weight = this->tcache.cached_weight;
00571 assert(weight != 0);
00572 this->acceleration = Clamp(power / weight * 4, 1, 255);
00573 }
00574
00580 int Train::GetDisplayImageWidth(Point *offset) const
00581 {
00582 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00583 int vehicle_pitch = 0;
00584
00585 const Engine *e = Engine::Get(this->engine_type);
00586 if (e->grffile != NULL && is_custom_sprite(e->u.rail.image_index)) {
00587 reference_width = e->grffile->traininfo_vehicle_width;
00588 vehicle_pitch = e->grffile->traininfo_vehicle_pitch;
00589 }
00590
00591 if (offset != NULL) {
00592 offset->x = reference_width / 2;
00593 offset->y = vehicle_pitch;
00594 }
00595 return this->tcache.cached_veh_length * reference_width / 8;
00596 }
00597
00598 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00599 {
00600 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00601 }
00602
00603 SpriteID Train::GetImage(Direction direction) const
00604 {
00605 uint8 spritenum = this->spritenum;
00606 SpriteID sprite;
00607
00608 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00609
00610 if (is_custom_sprite(spritenum)) {
00611 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00612 if (sprite != 0) return sprite;
00613
00614 spritenum = Engine::Get(this->engine_type)->original_image_index;
00615 }
00616
00617 sprite = GetDefaultTrainSprite(spritenum, direction);
00618
00619 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00620
00621 return sprite;
00622 }
00623
00624 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00625 {
00626 const Engine *e = Engine::Get(engine);
00627 Direction dir = rear_head ? DIR_E : DIR_W;
00628 uint8 spritenum = e->u.rail.image_index;
00629
00630 if (is_custom_sprite(spritenum)) {
00631 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00632 if (sprite != 0) {
00633 if (e->grffile != NULL) {
00634 y += e->grffile->traininfo_vehicle_pitch;
00635 }
00636 return sprite;
00637 }
00638
00639 spritenum = Engine::Get(engine)->original_image_index;
00640 }
00641
00642 if (rear_head) spritenum++;
00643
00644 return GetDefaultTrainSprite(spritenum, DIR_W);
00645 }
00646
00647 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal)
00648 {
00649 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00650 int yf = y;
00651 int yr = y;
00652
00653 SpriteID spritef = GetRailIcon(engine, false, yf);
00654 SpriteID spriter = GetRailIcon(engine, true, yr);
00655 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00656 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00657
00658 preferred_x = Clamp(preferred_x, left - real_spritef->x_offs + 14, right - real_spriter->width - real_spriter->x_offs - 15);
00659
00660 DrawSprite(spritef, pal, preferred_x - 14, yf);
00661 DrawSprite(spriter, pal, preferred_x + 15, yr);
00662 } else {
00663 SpriteID sprite = GetRailIcon(engine, false, y);
00664 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00665 preferred_x = Clamp(preferred_x, left - real_sprite->x_offs, right - real_sprite->width - real_sprite->x_offs);
00666 DrawSprite(sprite, pal, preferred_x, y);
00667 }
00668 }
00669
00670 static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, DoCommandFlag flags)
00671 {
00672 const Engine *e = Engine::Get(engine);
00673 const RailVehicleInfo *rvi = &e->u.rail;
00674 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00675
00676
00677 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00678
00679 if (flags & DC_QUERY_COST) return value;
00680
00681
00682 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00683
00684 uint num_vehicles = 1 + CountArticulatedParts(engine, false);
00685
00686
00687 if (!Vehicle::CanAllocateItem(num_vehicles)) {
00688 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00689 }
00690
00691 if (flags & DC_EXEC) {
00692 Train *v = new Train();
00693 v->spritenum = rvi->image_index;
00694
00695 v->engine_type = engine;
00696 v->tcache.first_engine = INVALID_ENGINE;
00697
00698 DiagDirection dir = GetRailDepotDirection(tile);
00699
00700 v->direction = DiagDirToDir(dir);
00701 v->tile = tile;
00702
00703 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00704 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00705
00706 v->x_pos = x;
00707 v->y_pos = y;
00708 v->z_pos = GetSlopeZ(x, y);
00709 v->owner = _current_company;
00710 v->track = TRACK_BIT_DEPOT;
00711 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00712
00713 v->SetWagon();
00714
00715 v->SetFreeWagon();
00716 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00717
00718 v->cargo_type = e->GetDefaultCargoType();
00719 v->cargo_cap = rvi->capacity;
00720 v->value = value.GetCost();
00721
00722 v->railtype = rvi->railtype;
00723
00724 v->build_year = _cur_year;
00725 v->cur_image = SPR_IMG_QUERY;
00726 v->random_bits = VehicleRandomBits();
00727
00728 v->group_id = DEFAULT_GROUP;
00729
00730 AddArticulatedParts(v);
00731
00732 _new_vehicle_id = v->index;
00733
00734 VehicleMove(v, false);
00735 v->First()->ConsistChanged(false);
00736 UpdateTrainGroupID(v->First());
00737
00738 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
00739 if (IsLocalCompany()) {
00740 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00741 }
00742 Company::Get(_current_company)->num_engines[engine]++;
00743
00744 CheckConsistencyOfArticulatedVehicle(v);
00745
00746
00747 Train *w;
00748 FOR_ALL_TRAINS(w) {
00749 if (w->tile == tile &&
00750 w->IsFreeWagon() &&
00751 w->engine_type == engine &&
00752 w->First() != v &&
00753 !(w->vehstatus & VS_CRASHED)) {
00754 DoCommand(0, v->index | (w->Last()->index << 16), 1, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00755 break;
00756 }
00757 }
00758 }
00759
00760 return value;
00761 }
00762
00764 static void NormalizeTrainVehInDepot(const Train *u)
00765 {
00766 const Train *v;
00767 FOR_ALL_TRAINS(v) {
00768 if (v->IsFreeWagon() && v->tile == u->tile &&
00769 v->track == TRACK_BIT_DEPOT) {
00770 if (DoCommand(0, v->index | (u->index << 16), 1, DC_EXEC,
00771 CMD_MOVE_RAIL_VEHICLE).Failed())
00772 break;
00773 }
00774 }
00775 }
00776
00777 static void AddRearEngineToMultiheadedTrain(Train *v)
00778 {
00779 Train *u = new Train();
00780 v->value >>= 1;
00781 u->value = v->value;
00782 u->direction = v->direction;
00783 u->owner = v->owner;
00784 u->tile = v->tile;
00785 u->x_pos = v->x_pos;
00786 u->y_pos = v->y_pos;
00787 u->z_pos = v->z_pos;
00788 u->track = TRACK_BIT_DEPOT;
00789 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00790 u->spritenum = v->spritenum + 1;
00791 u->cargo_type = v->cargo_type;
00792 u->cargo_subtype = v->cargo_subtype;
00793 u->cargo_cap = v->cargo_cap;
00794 u->railtype = v->railtype;
00795 u->engine_type = v->engine_type;
00796 u->build_year = v->build_year;
00797 u->cur_image = SPR_IMG_QUERY;
00798 u->random_bits = VehicleRandomBits();
00799 v->SetMultiheaded();
00800 u->SetMultiheaded();
00801 v->SetNext(u);
00802 VehicleMove(u, false);
00803
00804
00805 v->other_multiheaded_part = u;
00806 u->other_multiheaded_part = v;
00807 }
00808
00817 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00818 {
00819
00820 if (!IsEngineBuildable(p1, VEH_TRAIN, _current_company)) return_cmd_error(STR_ERROR_RAIL_VEHICLE_NOT_AVAILABLE);
00821
00822 const Engine *e = Engine::Get(p1);
00823 const RailVehicleInfo *rvi = &e->u.rail;
00824 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00825
00826
00827 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00828
00829 if (flags & DC_QUERY_COST) return value;
00830
00831
00832
00833 if (!IsRailDepotTile(tile)) return CMD_ERROR;
00834 if (!IsTileOwner(tile, _current_company)) return CMD_ERROR;
00835
00836 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(p1, tile, flags);
00837
00838 uint num_vehicles =
00839 (rvi->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1) +
00840 CountArticulatedParts(p1, false);
00841
00842
00843
00844 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00845
00846
00847 if (!Vehicle::CanAllocateItem(num_vehicles)) {
00848 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00849 }
00850
00851 UnitID unit_num = (flags & DC_AUTOREPLACE) ? 0 : GetFreeUnitNumber(VEH_TRAIN);
00852 if (unit_num > _settings_game.vehicle.max_trains) {
00853 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00854 }
00855
00856 if (flags & DC_EXEC) {
00857 DiagDirection dir = GetRailDepotDirection(tile);
00858 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00859 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00860
00861 Train *v = new Train();
00862 v->unitnumber = unit_num;
00863 v->direction = DiagDirToDir(dir);
00864 v->tile = tile;
00865 v->owner = _current_company;
00866 v->x_pos = x;
00867 v->y_pos = y;
00868 v->z_pos = GetSlopeZ(x, y);
00869 v->track = TRACK_BIT_DEPOT;
00870 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00871 v->spritenum = rvi->image_index;
00872 v->cargo_type = e->GetDefaultCargoType();
00873 v->cargo_cap = rvi->capacity;
00874 v->max_speed = rvi->max_speed;
00875 v->value = value.GetCost();
00876 v->last_station_visited = INVALID_STATION;
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->railtype = rvi->railtype;
00886 _new_vehicle_id = v->index;
00887
00888 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00889 v->date_of_last_service = _date;
00890 v->build_year = _cur_year;
00891 v->cur_image = SPR_IMG_QUERY;
00892 v->random_bits = VehicleRandomBits();
00893
00894 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00895
00896 v->group_id = DEFAULT_GROUP;
00897
00898 v->SetFrontEngine();
00899 v->SetEngine();
00900
00901 VehicleMove(v, false);
00902
00903 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00904 AddRearEngineToMultiheadedTrain(v);
00905 } else {
00906 AddArticulatedParts(v);
00907 }
00908
00909 v->ConsistChanged(false);
00910 UpdateTrainGroupID(v);
00911
00912 if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) {
00913 NormalizeTrainVehInDepot(v);
00914 }
00915
00916 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00917 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
00918 SetWindowDirty(WC_COMPANY, v->owner);
00919 if (IsLocalCompany()) {
00920 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00921 }
00922
00923 Company::Get(_current_company)->num_engines[p1]++;
00924
00925 CheckConsistencyOfArticulatedVehicle(v);
00926 }
00927
00928 return value;
00929 }
00930
00931
00932 bool Train::IsInDepot() const
00933 {
00934
00935 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00936
00937
00938 for (const Train *v = this; v != NULL; v = v->Next()) {
00939 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00940 }
00941
00942 return true;
00943 }
00944
00945 bool Train::IsStoppedInDepot() const
00946 {
00947
00948 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00949 return this->IsInDepot();
00950 }
00951
00952 static Train *FindGoodVehiclePos(const Train *src)
00953 {
00954 EngineID eng = src->engine_type;
00955 TileIndex tile = src->tile;
00956
00957 Train *dst;
00958 FOR_ALL_TRAINS(dst) {
00959 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00960
00961 Train *t = dst;
00962 while (t->engine_type == eng) {
00963 t = t->Next();
00964 if (t == NULL) return dst;
00965 }
00966 }
00967 }
00968
00969 return NULL;
00970 }
00971
00973 typedef SmallVector<Train *, 16> TrainList;
00974
00980 static void MakeTrainBackup(TrainList &list, Train *t)
00981 {
00982 for (; t != NULL; t = t->Next()) *list.Append() = t;
00983 }
00984
00989 static void RestoreTrainBackup(TrainList &list)
00990 {
00991
00992 if (list.Length() == 0) return;
00993
00994 Train *prev = NULL;
00995
00996 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00997 Train *t = *iter;
00998 if (prev != NULL) {
00999 prev->SetNext(t);
01000 } else if (t->Previous() != NULL) {
01001
01002 t->Previous()->SetNext(NULL);
01003 }
01004 prev = t;
01005 }
01006 }
01007
01013 static void RemoveFromConsist(Train *part, bool chain = false)
01014 {
01015 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
01016
01017
01018
01019 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
01020
01021
01022 tail->SetNext(NULL);
01023 }
01024
01030 static void InsertInConsist(Train *dst, Train *chain)
01031 {
01032
01033 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
01034
01035 chain->Last()->SetNext(dst->Next());
01036 dst->SetNext(chain);
01037 }
01038
01044 static void NormaliseDualHeads(Train *t)
01045 {
01046 for (; t != NULL; t = t->GetNextVehicle()) {
01047 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
01048
01049
01050 Train *u;
01051 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
01052
01053 if (u == t->other_multiheaded_part) continue;
01054
01055
01056 RemoveFromConsist(t->other_multiheaded_part);
01057
01058 InsertInConsist(u, t->other_multiheaded_part);
01059 }
01060 }
01061
01066 static void NormaliseSubtypes(Train *chain)
01067 {
01068
01069 if (chain == NULL) return;
01070
01071
01072 assert(chain->Previous() == NULL);
01073
01074
01075 if (chain->IsWagon()) {
01076 chain->SetFreeWagon();
01077 } else {
01078 assert(chain->IsEngine());
01079 chain->SetFrontEngine();
01080 }
01081
01082
01083 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
01084 t->ClearFreeWagon();
01085 t->ClearFrontEngine();
01086 }
01087 }
01088
01098 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
01099 {
01100
01101
01102
01103 if ((src != NULL && src->IsEngine() ? 1 : 0) +
01104 (dst != NULL && dst->IsEngine() ? 1 : 0) -
01105 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
01106 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
01107 return CommandCost();
01108 }
01109
01110
01111
01112 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
01113
01114 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
01115 }
01116
01122 static CommandCost CheckTrainAttachment(Train *t)
01123 {
01124
01125 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
01126
01127
01128
01129 int allowed_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
01130
01131 Train *head = t;
01132 Train *prev = t;
01133
01134
01135 t = t->Next();
01136 allowed_len--;
01137 prev->SetNext(NULL);
01138
01139
01140 head->InvalidateNewGRFCache();
01141
01142 while (t != NULL) {
01143 Train *next = t->Next();
01144
01145
01146
01147 t->SetNext(NULL);
01148
01149
01150 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
01151 allowed_len--;
01152
01153
01154 EngineID first_engine = t->tcache.first_engine;
01155 t->tcache.first_engine = INVALID_ENGINE;
01156
01157
01158
01159 t->InvalidateNewGRFCache();
01160
01161 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
01162
01163
01164 t->tcache.first_engine = first_engine;
01165
01166
01167 t->InvalidateNewGRFCache();
01168 head->InvalidateNewGRFCache();
01169
01170 if (callback != CALLBACK_FAILED) {
01171
01172 StringID error = STR_NULL;
01173
01174 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
01175 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(head->engine_type), 0xD000 + callback);
01176
01177 if (error != STR_NULL) return_cmd_error(error);
01178 }
01179 }
01180
01181
01182 prev->SetNext(t);
01183 prev = t;
01184 t = next;
01185 }
01186
01187 if (allowed_len <= 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01188 return CommandCost();
01189 }
01190
01200 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src)
01201 {
01202
01203 CommandCost ret = CheckTrainAttachment(src);
01204 if (ret.Failed()) return ret;
01205 ret = CheckTrainAttachment(dst);
01206 if (ret.Failed()) return ret;
01207
01208
01209 return CheckNewTrain(original_dst, dst, original_src, src);
01210 }
01211
01220 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01221 {
01222
01223 if (*src_head == *dst_head) {
01224
01225
01226 *dst_head = NULL;
01227 } else if (*dst_head == NULL) {
01228
01229
01230 *dst_head = src;
01231 }
01232
01233 if (src == *src_head) {
01234
01235
01236
01237
01238
01239
01240 *src_head = move_chain ? NULL :
01241 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01242 }
01243
01244
01245
01246
01247 RemoveFromConsist(src, move_chain);
01248 if (*dst_head != src) InsertInConsist(dst, src);
01249
01250
01251
01252 NormaliseDualHeads(*src_head);
01253 NormaliseDualHeads(*dst_head);
01254 }
01255
01261 static void NormaliseTrainHead(Train *head)
01262 {
01263
01264 if (head == NULL) return;
01265
01266
01267 head->ConsistChanged(false);
01268 UpdateTrainGroupID(head);
01269
01270
01271 if (!head->IsFrontEngine()) return;
01272
01273
01274 SetWindowDirty(WC_VEHICLE_REFIT, head->index);
01275 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, VVW_WIDGET_REFIT_VEH);
01276
01277
01278 if (head->unitnumber != 0) return;
01279 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01280 }
01281
01293 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01294 {
01295 VehicleID s = GB(p1, 0, 16);
01296 VehicleID d = GB(p1, 16, 16);
01297 bool move_chain = HasBit(p2, 0);
01298
01299 Train *src = Train::GetIfValid(s);
01300 if (src == NULL || !CheckOwnership(src->owner)) return CMD_ERROR;
01301
01302
01303 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01304
01305
01306 Train *dst;
01307 if (d == INVALID_VEHICLE) {
01308 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01309 } else {
01310 dst = Train::GetIfValid(d);
01311 if (dst == NULL || !CheckOwnership(dst->owner)) return CMD_ERROR;
01312
01313
01314 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01315 }
01316
01317
01318 src = src->GetFirstEnginePart();
01319 if (dst != NULL) {
01320 dst = dst->GetFirstEnginePart();
01321 }
01322
01323
01324 if (src == dst) return CommandCost();
01325
01326
01327 Train *src_head = src->First();
01328 Train *dst_head;
01329 if (dst != NULL) {
01330 dst_head = dst->First();
01331 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01332
01333 dst = dst->GetLastEnginePart();
01334 } else {
01335 dst_head = NULL;
01336 }
01337
01338 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01339
01340
01341 if (move_chain && src_head == dst_head) return CommandCost();
01342
01343
01344 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01345
01346
01347 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01348
01349
01350 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01351
01352
01353
01354 TrainList original_src;
01355 TrainList original_dst;
01356
01357 MakeTrainBackup(original_src, src_head);
01358 MakeTrainBackup(original_dst, dst_head);
01359
01360
01361
01362
01363 Train *original_src_head = src_head;
01364 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01365
01366
01367 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01368
01369 if ((flags & DC_AUTOREPLACE) == 0) {
01370
01371
01372
01373 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head);
01374 if (ret.Failed()) {
01375
01376 RestoreTrainBackup(original_src);
01377 RestoreTrainBackup(original_dst);
01378 return ret;
01379 }
01380 }
01381
01382
01383 if (flags & DC_EXEC) {
01384
01385 NormaliseSubtypes(src_head);
01386 NormaliseSubtypes(dst_head);
01387
01388
01389
01390
01391
01392
01393
01394
01395
01396
01397
01398
01399
01400
01401
01402
01403
01404
01405
01406
01407
01408 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01409
01410 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01411 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01412 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01413 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01414 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01415
01416
01417
01418
01419
01420
01421
01422
01423 if (dst_head != NULL ? dst_head != src : !src_head->IsFrontEngine()) {
01424 DecreaseGroupNumVehicle(src->group_id);
01425 }
01426
01427
01428
01429 DeleteVehicleOrders(src);
01430 RemoveVehicleFromGroup(src);
01431 src->unitnumber = 0;
01432 }
01433
01434
01435
01436 if (original_src_head != src && dst_head == src) {
01437 SetTrainGroupID(src, DEFAULT_GROUP);
01438 }
01439
01440
01441 NormaliseTrainHead(src_head);
01442 NormaliseTrainHead(dst_head);
01443
01444
01445 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01446 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01447 } else {
01448
01449 RestoreTrainBackup(original_src);
01450 RestoreTrainBackup(original_dst);
01451 }
01452
01453 return CommandCost();
01454 }
01455
01467 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01468 {
01469
01470 Window *w = NULL;
01471
01472 Train *v = Train::GetIfValid(p1);
01473 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
01474
01475
01476 bool sell_chain = HasBit(p2, 0);
01477
01478 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_SELL_DESTROYED_VEHICLE);
01479
01480 v = v->GetFirstEnginePart();
01481 Train *first = v->First();
01482
01483
01484 if (!first->IsStoppedInDepot()) {
01485 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01486 }
01487
01488 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01489
01490
01491
01492 TrainList original;
01493 MakeTrainBackup(original, first);
01494
01495
01496 Train *new_head = first;
01497 Train *sell_head = NULL;
01498
01499
01500 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01501
01502
01503 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head);
01504 if (ret.Failed()) {
01505
01506 RestoreTrainBackup(original);
01507 return ret;
01508 }
01509
01510 CommandCost cost(EXPENSES_NEW_VEHICLES);
01511 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01512
01513
01514 if (flags & DC_EXEC) {
01515
01516 NormaliseSubtypes(new_head);
01517
01518 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01519
01520
01521 new_head->orders.list = first->orders.list;
01522 new_head->AddToShared(first);
01523 DeleteVehicleOrders(first);
01524
01525
01526 new_head->CopyVehicleConfigAndStatistics(first);
01527 IncreaseGroupNumVehicle(new_head->group_id);
01528
01529
01530 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01531 }
01532
01533
01534 NormaliseTrainHead(new_head);
01535
01536
01537 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01538 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01539
01540
01541 delete sell_head;
01542 } else {
01543
01544 RestoreTrainBackup(original);
01545 }
01546
01547 return cost;
01548 }
01549
01550 void Train::UpdateDeltaXY(Direction direction)
01551 {
01552 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01553 static const uint32 _delta_xy_table[8] = {
01554 MKIT(3, 3, -1, -1),
01555 MKIT(3, 7, -1, -3),
01556 MKIT(3, 3, -1, -1),
01557 MKIT(7, 3, -3, -1),
01558 MKIT(3, 3, -1, -1),
01559 MKIT(3, 7, -1, -3),
01560 MKIT(3, 3, -1, -1),
01561 MKIT(7, 3, -3, -1),
01562 };
01563 #undef MKIT
01564
01565 uint32 x = _delta_xy_table[direction];
01566 this->x_offs = GB(x, 0, 8);
01567 this->y_offs = GB(x, 8, 8);
01568 this->x_extent = GB(x, 16, 8);
01569 this->y_extent = GB(x, 24, 8);
01570 this->z_extent = 6;
01571 }
01572
01573 static inline void SetLastSpeed(Train *v, int spd)
01574 {
01575 int old = v->tcache.last_speed;
01576 if (spd != old) {
01577 v->tcache.last_speed = spd;
01578 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01579 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01580 }
01581 }
01582 }
01583
01585 static void MarkTrainAsStuck(Train *v)
01586 {
01587 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01588
01589 SetBit(v->flags, VRF_TRAIN_STUCK);
01590
01591 v->wait_counter = 0;
01592
01593
01594 v->cur_speed = 0;
01595 v->subspeed = 0;
01596 SetLastSpeed(v, 0);
01597
01598 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01599 }
01600 }
01601
01602 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01603 {
01604 uint16 flag1 = *swap_flag1;
01605 uint16 flag2 = *swap_flag2;
01606
01607
01608 ClrBit(*swap_flag1, VRF_GOINGUP);
01609 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01610 ClrBit(*swap_flag2, VRF_GOINGUP);
01611 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01612
01613
01614 if (HasBit(flag1, VRF_GOINGUP)) {
01615 SetBit(*swap_flag2, VRF_GOINGDOWN);
01616 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01617 SetBit(*swap_flag2, VRF_GOINGUP);
01618 }
01619 if (HasBit(flag2, VRF_GOINGUP)) {
01620 SetBit(*swap_flag1, VRF_GOINGDOWN);
01621 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01622 SetBit(*swap_flag1, VRF_GOINGUP);
01623 }
01624 }
01625
01626 static void ReverseTrainSwapVeh(Train *v, int l, int r)
01627 {
01628 Train *a, *b;
01629
01630
01631 for (a = v; l != 0; l--) a = a->Next();
01632 for (b = v; r != 0; r--) b = b->Next();
01633
01634 if (a != b) {
01635
01636 {
01637 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01638 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01639 a->vehstatus = tmp;
01640 }
01641
01642 Swap(a->track, b->track);
01643 Swap(a->direction, b->direction);
01644
01645
01646 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01647 if (b->track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01648
01649 Swap(a->x_pos, b->x_pos);
01650 Swap(a->y_pos, b->y_pos);
01651 Swap(a->tile, b->tile);
01652 Swap(a->z_pos, b->z_pos);
01653
01654 SwapTrainFlags(&a->flags, &b->flags);
01655
01656
01657 a->UpdateViewport(true, true);
01658 b->UpdateViewport(true, true);
01659
01660
01661 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01662 if (b->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01663 } else {
01664 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01665 a->UpdateViewport(true, true);
01666
01667 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01668 }
01669
01670
01671 v->PowerChanged();
01672 }
01673
01674
01680 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01681 {
01682 return (v->type == VEH_TRAIN) ? v : NULL;
01683 }
01684
01685
01692 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01693 {
01694 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01695
01696 Train *t = Train::From(v);
01697 if (!t->IsFrontEngine()) return NULL;
01698
01699 TileIndex tile = *(TileIndex *)data;
01700
01701 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01702
01703 return t;
01704 }
01705
01706
01713 static bool TrainApproachingCrossing(TileIndex tile)
01714 {
01715 assert(IsLevelCrossingTile(tile));
01716
01717 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01718 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01719
01720 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01721
01722 dir = ReverseDiagDir(dir);
01723 tile_from = tile + TileOffsByDiagDir(dir);
01724
01725 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01726 }
01727
01728
01735 void UpdateLevelCrossing(TileIndex tile, bool sound)
01736 {
01737 assert(IsLevelCrossingTile(tile));
01738
01739
01740 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01741
01742 if (new_state != IsCrossingBarred(tile)) {
01743 if (new_state && sound) {
01744 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01745 }
01746 SetCrossingBarred(tile, new_state);
01747 MarkTileDirtyByTile(tile);
01748 }
01749 }
01750
01751
01757 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01758 {
01759 if (!IsCrossingBarred(tile)) {
01760 BarCrossing(tile);
01761 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01762 MarkTileDirtyByTile(tile);
01763 }
01764 }
01765
01766
01772 static void AdvanceWagonsBeforeSwap(Train *v)
01773 {
01774 Train *base = v;
01775 Train *first = base;
01776 Train *last = v->Last();
01777 uint length = CountVehiclesInChain(v);
01778
01779 while (length > 2) {
01780 last = last->Previous();
01781 first = first->Next();
01782
01783 int differential = base->tcache.cached_veh_length - last->tcache.cached_veh_length;
01784
01785
01786
01787 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01788
01789 base = first;
01790 length -= 2;
01791 }
01792 }
01793
01794
01800 static void AdvanceWagonsAfterSwap(Train *v)
01801 {
01802
01803 Train *dep = v;
01804 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01805 dep = dep->Next();
01806 }
01807
01808 Train *leave = dep->Next();
01809
01810 if (leave != NULL) {
01811
01812 int d = TicksToLeaveDepot(dep);
01813
01814 if (d <= 0) {
01815 leave->vehstatus &= ~VS_HIDDEN;
01816 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01817 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01818 }
01819 } else {
01820 dep = NULL;
01821 }
01822
01823 Train *base = v;
01824 Train *first = base;
01825 Train *last = v->Last();
01826 uint length = CountVehiclesInChain(v);
01827
01828
01829
01830 bool nomove = (dep == NULL);
01831
01832 while (length > 2) {
01833
01834
01835 if (base == dep) break;
01836
01837
01838 if (last == dep) nomove = true;
01839
01840 last = last->Previous();
01841 first = first->Next();
01842
01843 int differential = last->tcache.cached_veh_length - base->tcache.cached_veh_length;
01844
01845
01846 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01847
01848 base = first;
01849 length -= 2;
01850 }
01851 }
01852
01853
01854 static void ReverseTrainDirection(Train *v)
01855 {
01856 if (IsRailDepotTile(v->tile)) {
01857 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01858 }
01859
01860
01861 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01862
01863
01864 TileIndex crossing = TrainApproachingCrossingTile(v);
01865
01866
01867 int r = CountVehiclesInChain(v) - 1;
01868
01869 AdvanceWagonsBeforeSwap(v);
01870
01871
01872 int l = 0;
01873 do {
01874 ReverseTrainSwapVeh(v, l++, r--);
01875 } while (l <= r);
01876
01877 AdvanceWagonsAfterSwap(v);
01878
01879 if (IsRailDepotTile(v->tile)) {
01880 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01881 }
01882
01883 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01884
01885 ClrBit(v->flags, VRF_REVERSING);
01886
01887
01888 v->ConsistChanged(true);
01889
01890
01891 for (Vehicle *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01892
01893
01894 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01895
01896
01897 crossing = TrainApproachingCrossingTile(v);
01898 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01899
01900
01901 if (v->track == TRACK_BIT_DEPOT) {
01902
01903 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01904 ClrBit(v->flags, VRF_TRAIN_STUCK);
01905 return;
01906 }
01907
01908
01909
01910 DiagDirection dir = TrainExitDir(v->direction, v->track);
01911 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01912
01913 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01914
01915
01916 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01917 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01918 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01919
01920 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01921 if (TryPathReserve(v, false, first_tile_okay)) {
01922
01923 CheckNextTrainTile(v);
01924 } else if (v->current_order.GetType() != OT_LOADING) {
01925
01926 MarkTrainAsStuck(v);
01927 }
01928 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01929
01930 ClrBit(v->flags, VRF_TRAIN_STUCK);
01931 v->wait_counter = 0;
01932 }
01933 }
01934
01943 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01944 {
01945 Train *v = Train::GetIfValid(p1);
01946 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
01947
01948 if (p2 != 0) {
01949
01950
01951 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01952 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01953 }
01954
01955 Train *front = v->First();
01956
01957 if (!front->IsStoppedInDepot()) {
01958 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01959 }
01960
01961 if (flags & DC_EXEC) {
01962 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01963 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
01964 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
01965
01966 v->force_proceed = 0;
01967 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01968 }
01969 } else {
01970
01971 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01972
01973 if (flags & DC_EXEC) {
01974
01975 if (v->current_order.IsType(OT_LOADING)) {
01976 const Vehicle *last = v;
01977 while (last->Next() != NULL) last = last->Next();
01978
01979
01980 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01981 v->LeaveStation();
01982 }
01983 }
01984
01985
01986 v->force_proceed = 0;
01987 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01988
01989 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01990 ToggleBit(v->flags, VRF_REVERSING);
01991 } else {
01992 v->cur_speed = 0;
01993 SetLastSpeed(v, 0);
01994 HideFillingPercent(&v->fill_percent_te_id);
01995 ReverseTrainDirection(v);
01996 }
01997 }
01998 }
01999 return CommandCost();
02000 }
02001
02010 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02011 {
02012 Train *t = Train::GetIfValid(p1);
02013 if (t == NULL || !CheckOwnership(t->owner)) return CMD_ERROR;
02014
02015 if (flags & DC_EXEC) {
02016
02017
02018
02019
02020
02021 t->force_proceed = t->force_proceed == 2 ? 0 : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? 1 : 2;
02022 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
02023 }
02024
02025 return CommandCost();
02026 }
02027
02039 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02040 {
02041 CargoID new_cid = GB(p2, 0, 8);
02042 byte new_subtype = GB(p2, 8, 8);
02043 bool only_this = HasBit(p2, 16);
02044
02045 Train *v = Train::GetIfValid(p1);
02046 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
02047
02048 if (!v->IsStoppedInDepot()) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02049 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_REFIT_DESTROYED_VEHICLE);
02050
02051
02052 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02053
02054 CommandCost cost = RefitVehicle(v, only_this, new_cid, new_subtype, flags);
02055
02056
02057 if (flags & DC_EXEC) {
02058 Train *front = v->First();
02059 front->ConsistChanged(false);
02060 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
02061 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
02062 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02063 } else {
02064 v->InvalidateNewGRFCacheOfChain();
02065 }
02066
02067 return cost;
02068 }
02069
02072 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
02073 {
02074 assert(!(v->vehstatus & VS_CRASHED));
02075
02076 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
02077
02078 PBSTileInfo origin = FollowTrainReservation(v);
02079 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
02080
02081 switch (_settings_game.pf.pathfinder_for_trains) {
02082 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
02083 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
02084
02085 default: NOT_REACHED();
02086 }
02087 }
02088
02089 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02090 {
02091 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
02092 if (tfdd.best_length == UINT_MAX) return false;
02093
02094 if (location != NULL) *location = tfdd.tile;
02095 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
02096 if (reverse != NULL) *reverse = tfdd.reverse;
02097
02098 return true;
02099 }
02100
02111 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02112 {
02113 if (p2 & DEPOT_MASS_SEND) {
02114
02115 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02116 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02117 }
02118
02119 Train *v = Train::GetIfValid(p1);
02120 if (v == NULL) return CMD_ERROR;
02121
02122 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02123 }
02124
02125 static const int8 _vehicle_smoke_pos[8] = {
02126 1, 1, 1, 0, -1, -1, -1, 0
02127 };
02128
02129 static void HandleLocomotiveSmokeCloud(const Train *v)
02130 {
02131 bool sound = false;
02132
02133 if ((v->vehstatus & VS_TRAIN_SLOWING) || v->cur_speed < 2) {
02134 return;
02135 }
02136
02137 const Train *u = v;
02138
02139 do {
02140 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02141 int effect_offset = GB(v->tcache.cached_vis_effect, 0, 4) - 8;
02142 byte effect_type = GB(v->tcache.cached_vis_effect, 4, 2);
02143 bool disable_effect = HasBit(v->tcache.cached_vis_effect, 6);
02144
02145
02146 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02147 disable_effect ||
02148 v->vehstatus & VS_HIDDEN) {
02149 continue;
02150 }
02151
02152
02153 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02154
02155
02156 if (!HasPowerOnRail(v->railtype, GetTileRailType(v->tile))) continue;
02157
02158 if (effect_type == 0) {
02159
02160 effect_type = rvi->engclass;
02161 } else {
02162 effect_type--;
02163 }
02164
02165 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02166 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02167
02168 if (HasBit(v->flags, VRF_REVERSE_DIRECTION)) {
02169 x = -x;
02170 y = -y;
02171 }
02172
02173 switch (effect_type) {
02174 case 0:
02175
02176 if (GB(v->tick_counter, 0, 4) == 0) {
02177 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02178 sound = true;
02179 }
02180 break;
02181
02182 case 1:
02183
02184 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02185 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02186 sound = true;
02187 }
02188 break;
02189
02190 case 2:
02191
02192 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02193 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02194 sound = true;
02195 }
02196 break;
02197
02198 default:
02199 break;
02200 }
02201 } while ((v = v->Next()) != NULL);
02202
02203 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02204 }
02205
02206 void Train::PlayLeaveStationSound() const
02207 {
02208 static const SoundFx sfx[] = {
02209 SND_04_TRAIN,
02210 SND_0A_TRAIN_HORN,
02211 SND_0A_TRAIN_HORN,
02212 SND_47_MAGLEV_2,
02213 SND_41_MAGLEV
02214 };
02215
02216 if (PlayVehicleSound(this, VSE_START)) return;
02217
02218 EngineID engtype = this->engine_type;
02219 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02220 }
02221
02223 static void CheckNextTrainTile(Train *v)
02224 {
02225
02226 if (_settings_game.pf.path_backoff_interval == 255) return;
02227
02228
02229 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->track == TRACK_BIT_DEPOT) return;
02230
02231 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02232
02233 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02234
02235 Trackdir td = v->GetVehicleTrackdir();
02236
02237
02238 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02239 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02240 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02241
02242 CFollowTrackRail ft(v);
02243 if (!ft.Follow(v->tile, td)) return;
02244
02245 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02246
02247 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02248 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02249
02250 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02251 if (_settings_game.pf.forbid_90_deg) {
02252 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02253 }
02254 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02255 }
02256 }
02257 }
02258 }
02259
02260 static bool CheckTrainStayInDepot(Train *v)
02261 {
02262
02263 for (const Train *u = v; u != NULL; u = u->Next()) {
02264 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02265 }
02266
02267
02268 if (v->tcache.cached_power == 0) {
02269 v->vehstatus |= VS_STOPPED;
02270 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02271 return true;
02272 }
02273
02274 SigSegState seg_state;
02275
02276 if (v->force_proceed == 0) {
02277
02278 if (++v->wait_counter < 37) {
02279 SetWindowClassesDirty(WC_TRAINS_LIST);
02280 return true;
02281 }
02282
02283 v->wait_counter = 0;
02284
02285 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02286 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02287
02288 SetWindowClassesDirty(WC_TRAINS_LIST);
02289 return true;
02290 }
02291 } else {
02292 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02293 }
02294
02295
02296 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02297
02298 if (HasDepotReservation(v->tile)) return true;
02299 SetDepotReservation(v->tile, true);
02300 VehicleEnterDepot(v);
02301 return true;
02302 }
02303
02304
02305 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == 0) {
02306
02307 SetWindowClassesDirty(WC_TRAINS_LIST);
02308 MarkTrainAsStuck(v);
02309 return true;
02310 }
02311
02312 SetDepotReservation(v->tile, true);
02313 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02314
02315 VehicleServiceInDepot(v);
02316 SetWindowClassesDirty(WC_TRAINS_LIST);
02317 v->PlayLeaveStationSound();
02318
02319 v->track = TRACK_BIT_X;
02320 if (v->direction & 2) v->track = TRACK_BIT_Y;
02321
02322 v->vehstatus &= ~VS_HIDDEN;
02323 v->cur_speed = 0;
02324
02325 v->UpdateDeltaXY(v->direction);
02326 v->cur_image = v->GetImage(v->direction);
02327 VehicleMove(v, false);
02328 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02329 v->UpdateAcceleration();
02330 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02331
02332 return false;
02333 }
02334
02336 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02337 {
02338 DiagDirection dir = TrackdirToExitdir(track_dir);
02339
02340 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02341
02342 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02343 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02344
02345 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02346
02347 SetTunnelBridgeReservation(tile, false);
02348 SetTunnelBridgeReservation(end, false);
02349
02350 if (_settings_client.gui.show_track_reservation) {
02351 MarkTileDirtyByTile(tile);
02352 MarkTileDirtyByTile(end);
02353 }
02354 }
02355 }
02356 } else if (IsRailStationTile(tile)) {
02357 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02358
02359
02360 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02361 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02362 }
02363 } else {
02364
02365 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02366 }
02367 }
02368
02370 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02371 {
02372 assert(v->IsFrontEngine());
02373
02374 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02375 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02376 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02377 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02378
02379
02380 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02381
02382 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02383 while (ft.Follow(tile, td)) {
02384 tile = ft.m_new_tile;
02385 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02386 td = RemoveFirstTrackdir(&bits);
02387 assert(bits == TRACKDIR_BIT_NONE);
02388
02389 if (!IsValidTrackdir(td)) break;
02390
02391 if (IsTileType(tile, MP_RAILWAY)) {
02392 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02393
02394 UnreserveRailTrack(tile, TrackdirToTrack(td));
02395 break;
02396 }
02397 if (HasPbsSignalOnTrackdir(tile, td)) {
02398 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02399
02400 break;
02401 } else {
02402
02403 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02404 MarkTileDirtyByTile(tile);
02405 }
02406 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02407 break;
02408 }
02409 }
02410
02411
02412 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);
02413
02414 free_tile = true;
02415 }
02416 }
02417
02418 static const byte _initial_tile_subcoord[6][4][3] = {
02419 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02420 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02421 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02422 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02423 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02424 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02425 };
02426
02439 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02440 {
02441 switch (_settings_game.pf.pathfinder_for_trains) {
02442 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02443 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02444
02445 default: NOT_REACHED();
02446 }
02447 }
02448
02454 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02455 {
02456 PBSTileInfo origin = FollowTrainReservation(v);
02457
02458 CFollowTrackRail ft(v);
02459
02460 TileIndex tile = origin.tile;
02461 Trackdir cur_td = origin.trackdir;
02462 while (ft.Follow(tile, cur_td)) {
02463 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02464
02465 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02466 }
02467
02468 if (_settings_game.pf.forbid_90_deg) {
02469 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02470 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02471 }
02472
02473
02474 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02475 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02476
02477
02478
02479
02480
02481
02482 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02483
02484
02485
02486 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02487
02488
02489 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02490 if (enterdir) *enterdir = ft.m_exitdir;
02491 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02492 }
02493
02494 tile = ft.m_new_tile;
02495 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02496
02497 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02498 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02499 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02500
02501 return PBSTileInfo(tile, cur_td, true);
02502 }
02503
02504 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02505 }
02506
02507 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02508
02509 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02510 }
02511
02512
02513 tile = origin.tile;
02514 cur_td = origin.trackdir;
02515 TileIndex stopped = ft.m_old_tile;
02516 Trackdir stopped_td = ft.m_old_td;
02517 while (tile != stopped || cur_td != stopped_td) {
02518 if (!ft.Follow(tile, cur_td)) break;
02519
02520 if (_settings_game.pf.forbid_90_deg) {
02521 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02522 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02523 }
02524 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02525
02526 tile = ft.m_new_tile;
02527 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02528
02529 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02530 }
02531
02532
02533 return PBSTileInfo();
02534 }
02535
02546 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02547 {
02548 switch (_settings_game.pf.pathfinder_for_trains) {
02549 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02550 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02551
02552 default: NOT_REACHED();
02553 }
02554 }
02555
02557 class VehicleOrderSaver
02558 {
02559 private:
02560 Vehicle *v;
02561 Order old_order;
02562 TileIndex old_dest_tile;
02563 StationID old_last_station_visited;
02564 VehicleOrderID index;
02565
02566 public:
02567 VehicleOrderSaver(Vehicle *_v) :
02568 v(_v),
02569 old_order(_v->current_order),
02570 old_dest_tile(_v->dest_tile),
02571 old_last_station_visited(_v->last_station_visited),
02572 index(_v->cur_order_index)
02573 {
02574 }
02575
02576 ~VehicleOrderSaver()
02577 {
02578 this->v->current_order = this->old_order;
02579 this->v->dest_tile = this->old_dest_tile;
02580 this->v->last_station_visited = this->old_last_station_visited;
02581 }
02582
02588 bool SwitchToNextOrder(bool skip_first)
02589 {
02590 if (this->v->GetNumOrders() == 0) return false;
02591
02592 if (skip_first) ++this->index;
02593
02594 int conditional_depth = 0;
02595
02596 do {
02597
02598 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02599
02600 Order *order = this->v->GetOrder(this->index);
02601 assert(order != NULL);
02602
02603 switch (order->GetType()) {
02604 case OT_GOTO_DEPOT:
02605
02606 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02607 case OT_GOTO_STATION:
02608 case OT_GOTO_WAYPOINT:
02609 this->v->current_order = *order;
02610 UpdateOrderDest(this->v, order);
02611 return true;
02612 case OT_CONDITIONAL: {
02613 if (conditional_depth > this->v->GetNumOrders()) return false;
02614 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02615 if (next != INVALID_VEH_ORDER_ID) {
02616 conditional_depth++;
02617 this->index = next;
02618
02619 continue;
02620 }
02621 break;
02622 }
02623 default:
02624 break;
02625 }
02626
02627
02628 ++this->index;
02629 } while (this->index != this->v->cur_order_index);
02630
02631 return false;
02632 }
02633 };
02634
02635
02636 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02637 {
02638 Track best_track = INVALID_TRACK;
02639 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02640 bool changed_signal = false;
02641
02642 assert((tracks & ~TRACK_BIT_MASK) == 0);
02643
02644 if (got_reservation != NULL) *got_reservation = false;
02645
02646
02647 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02648
02649 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02650
02651
02652 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02653 Track track = FindFirstTrack(tracks);
02654
02655 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02656 do_track_reservation = true;
02657 changed_signal = true;
02658 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02659 } else if (!do_track_reservation) {
02660 return track;
02661 }
02662 best_track = track;
02663 }
02664
02665 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02666 DiagDirection dest_enterdir = enterdir;
02667 if (do_track_reservation) {
02668
02669
02670
02671 CheckIfTrainNeedsService(v);
02672 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02673
02674 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02675 if (res_dest.tile == INVALID_TILE) {
02676
02677 if (mark_stuck) MarkTrainAsStuck(v);
02678 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02679 return FindFirstTrack(tracks);
02680 }
02681 }
02682
02683
02684 VehicleOrderSaver orders(v);
02685
02686
02687
02688
02689
02690
02691
02692 if (v->current_order.IsType(OT_LEAVESTATION)) {
02693 orders.SwitchToNextOrder(false);
02694 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02695 v->current_order.IsType(OT_GOTO_STATION) ?
02696 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02697 v->tile == v->dest_tile))) {
02698 orders.SwitchToNextOrder(true);
02699 }
02700
02701 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02702
02703 bool path_not_found = false;
02704 TileIndex new_tile = res_dest.tile;
02705
02706 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02707 if (new_tile == tile) best_track = next_track;
02708
02709
02710 if (path_not_found) {
02711
02712 if (!HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02713
02714 SetBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02715
02716 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02717 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02718 SetDParam(0, v->index);
02719 AddVehicleNewsItem(
02720 STR_NEWS_TRAIN_IS_LOST,
02721 NS_ADVICE,
02722 v->index
02723 );
02724 }
02725 }
02726 } else {
02727
02728 if (HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02729
02730 ClrBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02731
02732 }
02733 }
02734 }
02735
02736
02737 if (!do_track_reservation) return best_track;
02738
02739
02740 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02741 if (mark_stuck) MarkTrainAsStuck(v);
02742 FreeTrainTrackReservation(v);
02743 return best_track;
02744 }
02745
02746
02747 if (res_dest.tile == INVALID_TILE) {
02748
02749 PBSTileInfo origin = FollowTrainReservation(v);
02750 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02751 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02752 best_track = FindFirstTrack(res);
02753 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02754 if (got_reservation != NULL) *got_reservation = true;
02755 if (changed_signal) MarkTileDirtyByTile(tile);
02756 } else {
02757 FreeTrainTrackReservation(v);
02758 if (mark_stuck) MarkTrainAsStuck(v);
02759 }
02760 return best_track;
02761 }
02762
02763 if (got_reservation != NULL) *got_reservation = true;
02764
02765
02766 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02767
02768 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02769 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02770 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02771 if (_settings_game.pf.forbid_90_deg) {
02772 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02773 }
02774
02775
02776 if (orders.SwitchToNextOrder(true)) {
02777 PBSTileInfo cur_dest;
02778 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
02779 if (cur_dest.tile != INVALID_TILE) {
02780 res_dest = cur_dest;
02781 if (res_dest.okay) continue;
02782
02783 FreeTrainTrackReservation(v);
02784 if (mark_stuck) MarkTrainAsStuck(v);
02785 if (got_reservation != NULL) *got_reservation = false;
02786 changed_signal = false;
02787 break;
02788 }
02789 }
02790
02791 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02792 FreeTrainTrackReservation(v);
02793 if (mark_stuck) MarkTrainAsStuck(v);
02794 if (got_reservation != NULL) *got_reservation = false;
02795 changed_signal = false;
02796 }
02797 break;
02798 }
02799
02800 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02801
02802 if (changed_signal) MarkTileDirtyByTile(tile);
02803
02804 return best_track;
02805 }
02806
02815 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02816 {
02817 assert(v->IsFrontEngine());
02818
02819
02820
02821
02822 if (v->track == TRACK_BIT_DEPOT) {
02823 if (HasDepotReservation(v->tile)) {
02824 if (mark_as_stuck) MarkTrainAsStuck(v);
02825 return false;
02826 } else {
02827
02828 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02829 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02830 }
02831 }
02832
02833 Vehicle *other_train = NULL;
02834 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02835
02836
02837
02838
02839
02840 if (other_train != NULL && other_train->index != v->index) {
02841 if (mark_as_stuck) MarkTrainAsStuck(v);
02842 return false;
02843 }
02844
02845 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02846
02847 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02848 ClrBit(v->flags, VRF_TRAIN_STUCK);
02849 return true;
02850 }
02851
02852
02853 if (v->track == TRACK_BIT_DEPOT) {
02854 SetDepotReservation(v->tile, true);
02855 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02856 }
02857
02858 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02859 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02860 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02861
02862 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02863
02864 bool res_made = false;
02865 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02866
02867 if (!res_made) {
02868
02869 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02870 return false;
02871 }
02872
02873 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02874 v->wait_counter = 0;
02875 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02876 }
02877 ClrBit(v->flags, VRF_TRAIN_STUCK);
02878 return true;
02879 }
02880
02881
02882 static bool CheckReverseTrain(const Train *v)
02883 {
02884 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02885 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02886 !(v->direction & 1)) {
02887 return false;
02888 }
02889
02890 assert(v->track != TRACK_BIT_NONE);
02891
02892 switch (_settings_game.pf.pathfinder_for_trains) {
02893 case VPF_NPF: return NPFTrainCheckReverse(v);
02894 case VPF_YAPF: return YapfTrainCheckReverse(v);
02895
02896 default: NOT_REACHED();
02897 }
02898 }
02899
02900 TileIndex Train::GetOrderStationLocation(StationID station)
02901 {
02902 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02903
02904 const Station *st = Station::Get(station);
02905 if (!(st->facilities & FACIL_TRAIN)) {
02906
02907 this->IncrementOrderIndex();
02908 return 0;
02909 }
02910
02911 return st->xy;
02912 }
02913
02914 void Train::MarkDirty()
02915 {
02916 Vehicle *v = this;
02917 do {
02918 v->UpdateViewport(false, false);
02919 } while ((v = v->Next()) != NULL);
02920
02921
02922 this->CargoChanged();
02923 this->UpdateAcceleration();
02924 }
02925
02935 int Train::UpdateSpeed()
02936 {
02937 uint accel;
02938
02939 switch (_settings_game.vehicle.train_acceleration_model) {
02940 default: NOT_REACHED();
02941 case AM_ORIGINAL:
02942 accel = this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2);
02943 break;
02944 case AM_REALISTIC:
02945 this->max_speed = this->GetCurrentMaxSpeed();
02946 accel = this->GetAcceleration();
02947 break;
02948 }
02949
02950 uint spd = this->subspeed + accel;
02951 this->subspeed = (byte)spd;
02952 {
02953 int tempmax = this->max_speed;
02954 if (this->cur_speed > this->max_speed)
02955 tempmax = this->cur_speed - (this->cur_speed / 10) - 1;
02956 this->cur_speed = spd = Clamp(this->cur_speed + ((int)spd >> 8), 0, tempmax);
02957 }
02958
02959
02960
02961
02962
02963
02964
02965
02966
02967
02968
02969
02970 int scaled_spd = spd * 3 >> 2;
02971
02972 scaled_spd += this->progress;
02973 this->progress = 0;
02974 return scaled_spd;
02975 }
02976
02977 static void TrainEnterStation(Train *v, StationID station)
02978 {
02979 v->last_station_visited = station;
02980
02981
02982 Station *st = Station::Get(station);
02983 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02984 st->had_vehicle_of_type |= HVOT_TRAIN;
02985 SetDParam(0, st->index);
02986 AddVehicleNewsItem(
02987 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02988 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
02989 v->index,
02990 st->index
02991 );
02992 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
02993 }
02994
02995 v->BeginLoading();
02996
02997 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
02998 }
02999
03000 static byte AfterSetTrainPos(Train *v, bool new_tile)
03001 {
03002 byte old_z = v->z_pos;
03003 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03004
03005 if (new_tile) {
03006 ClrBit(v->flags, VRF_GOINGUP);
03007 ClrBit(v->flags, VRF_GOINGDOWN);
03008
03009 if (v->track == TRACK_BIT_X || v->track == TRACK_BIT_Y) {
03010
03011
03012
03013
03014
03015 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03016 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03017
03018 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03019
03020 if (middle_z != v->z_pos) {
03021 SetBit(v->flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03022 }
03023 }
03024 }
03025
03026 VehicleMove(v, true);
03027 return old_z;
03028 }
03029
03030
03031 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
03032 {
03033 return
03034 IsTileOwner(tile, v->owner) && (
03035 !v->IsFrontEngine() ||
03036 HasBit(v->compatible_railtypes, GetRailType(tile))
03037 );
03038 }
03039
03040 struct RailtypeSlowdownParams {
03041 byte small_turn, large_turn;
03042 byte z_up;
03043 byte z_down;
03044 };
03045
03046 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03047
03048 {256 / 4, 256 / 2, 256 / 4, 2},
03049 {256 / 4, 256 / 2, 256 / 4, 2},
03050 {256 / 4, 256 / 2, 256 / 4, 2},
03051 {0, 256 / 2, 256 / 4, 2},
03052 };
03053
03055 static inline void AffectSpeedByZChange(Train *v, byte old_z)
03056 {
03057 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
03058
03059 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03060
03061 if (old_z < v->z_pos) {
03062 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03063 } else {
03064 uint16 spd = v->cur_speed + rsp->z_down;
03065 if (spd <= v->max_speed) v->cur_speed = spd;
03066 }
03067 }
03068
03069 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03070 {
03071 if (IsTileType(tile, MP_RAILWAY) &&
03072 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03073 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03074 Trackdir trackdir = FindFirstTrackdir(tracks);
03075 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03076
03077 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03078 }
03079 }
03080 return false;
03081 }
03082
03086 void Train::ReserveTrackUnderConsist() const
03087 {
03088 for (const Train *u = this; u != NULL; u = u->Next()) {
03089 switch (u->track) {
03090 case TRACK_BIT_WORMHOLE:
03091 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
03092 break;
03093 case TRACK_BIT_DEPOT:
03094 break;
03095 default:
03096 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
03097 break;
03098 }
03099 }
03100 }
03101
03102 uint Train::Crash(bool flooded)
03103 {
03104 uint pass = 0;
03105 if (this->IsFrontEngine()) {
03106 pass += 4;
03107
03108
03109
03110 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
03111 for (const Train *v = this; v != NULL; v = v->Next()) {
03112 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03113 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
03114
03115
03116 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
03117 }
03118 }
03119
03120
03121
03122 TileIndex crossing = TrainApproachingCrossingTile(this);
03123 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03124
03125
03126 HideFillingPercent(&this->fill_percent_te_id);
03127 }
03128
03129 pass += Vehicle::Crash(flooded);
03130
03131 this->crash_anim_pos = flooded ? 4000 : 1;
03132 return pass;
03133 }
03134
03141 static uint TrainCrashed(Train *v)
03142 {
03143 uint num = 0;
03144
03145
03146 if (!(v->vehstatus & VS_CRASHED)) {
03147 num = v->Crash();
03148 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03149 }
03150
03151
03152
03153 v->ReserveTrackUnderConsist();
03154
03155 return num;
03156 }
03157
03158 struct TrainCollideChecker {
03159 Train *v;
03160 uint num;
03161 };
03162
03163 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03164 {
03165 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03166
03167
03168 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
03169
03170
03171 if (v->owner != tcc->v->owner) return NULL;
03172
03173
03174 Train *coll = Train::From(v)->First();
03175
03176
03177 if (coll == tcc->v) return NULL;
03178
03179 int x_diff = v->x_pos - tcc->v->x_pos;
03180 int y_diff = v->y_pos - tcc->v->y_pos;
03181
03182
03183
03184
03185
03186 uint hash = (y_diff + 7) | (x_diff + 7);
03187 if (hash & ~15) return NULL;
03188
03189
03190 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03191
03192
03193 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
03194
03195
03196 tcc->num += TrainCrashed(tcc->v);
03197 tcc->num += TrainCrashed(coll);
03198
03199 return NULL;
03200 }
03201
03208 static bool CheckTrainCollision(Train *v)
03209 {
03210
03211 if (v->track == TRACK_BIT_DEPOT) return false;
03212
03213 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03214
03215 TrainCollideChecker tcc;
03216 tcc.v = v;
03217 tcc.num = 0;
03218
03219
03220 if (v->track == TRACK_BIT_WORMHOLE) {
03221 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03222 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03223 } else {
03224 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03225 }
03226
03227
03228 if (tcc.num == 0) return false;
03229
03230 SetDParam(0, tcc.num);
03231 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
03232 NS_ACCIDENT,
03233 v->index
03234 );
03235
03236 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03237 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03238 return true;
03239 }
03240
03241 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03242 {
03243 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03244
03245 Train *t = Train::From(v);
03246 DiagDirection exitdir = *(DiagDirection *)data;
03247
03248
03249 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03250
03251 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03252
03253 return t;
03254 }
03255
03256 static void TrainController(Train *v, Vehicle *nomove)
03257 {
03258 Train *first = v->First();
03259 Train *prev;
03260 bool direction_changed = false;
03261
03262
03263 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03264 DiagDirection enterdir = DIAGDIR_BEGIN;
03265 bool update_signals_crossing = false;
03266
03267 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03268 if (v->track != TRACK_BIT_WORMHOLE) {
03269
03270 if (gp.old_tile == gp.new_tile) {
03271
03272 if (v->track == TRACK_BIT_DEPOT) {
03273
03274 gp.x = v->x_pos;
03275 gp.y = v->y_pos;
03276 } else {
03277
03278
03279
03280 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v)) return;
03281
03282 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03283 if (HasBit(r, VETS_CANNOT_ENTER)) {
03284 goto invalid_rail;
03285 }
03286 if (HasBit(r, VETS_ENTERED_STATION)) {
03287
03288 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03289 }
03290 }
03291 } else {
03292
03293
03294
03295 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03296 assert(IsValidDiagDirection(enterdir));
03297
03298
03299
03300 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03301 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03302
03303 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03304 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03305
03306 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03307 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03308
03309
03310 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03311 }
03312
03313 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03314
03315
03316
03317 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03318
03319 TrackBits chosen_track;
03320 if (prev == NULL) {
03321
03322
03323 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03324 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03325
03326 if (v->force_proceed != 0 && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03327
03328
03329
03330
03331 Trackdir dir = FindFirstTrackdir(trackdirbits);
03332 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03333 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03334
03335
03336 v->force_proceed--;
03337 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03338 }
03339 }
03340
03341
03342 if ((red_signals & chosen_track) && v->force_proceed == 0) {
03343
03344 Trackdir i = FindFirstTrackdir(trackdirbits);
03345
03346
03347 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return;
03348
03349 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03350 v->cur_speed = 0;
03351 v->subspeed = 0;
03352 v->progress = 255 - 100;
03353 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return;
03354 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03355 v->cur_speed = 0;
03356 v->subspeed = 0;
03357 v->progress = 255 - 10;
03358 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03359 DiagDirection exitdir = TrackdirToExitdir(i);
03360 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03361
03362 exitdir = ReverseDiagDir(exitdir);
03363
03364
03365 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return;
03366 }
03367 }
03368
03369
03370
03371
03372
03373 if (_settings_game.pf.wait_for_pbs_path == 255 && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03374 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03375 v->wait_counter = 0;
03376 return;
03377 }
03378 goto reverse_train_direction;
03379 } else {
03380 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03381 }
03382 } else {
03383
03384 if (prev->tile == gp.new_tile) {
03385
03386 if (prev->track == TRACK_BIT_WORMHOLE) {
03387
03388
03389 assert(IsTunnel(prev->tile));
03390 chosen_track = bits;
03391 } else {
03392 chosen_track = prev->track;
03393 }
03394 } else {
03395
03396
03397
03398
03399
03400
03401
03402 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03403 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03404 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03405 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03406 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03407 };
03408 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03409 assert(IsValidDiagDirection(exitdir));
03410 chosen_track = _connecting_track[enterdir][exitdir];
03411 }
03412 chosen_track &= bits;
03413 }
03414
03415
03416 assert(
03417 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03418 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03419 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03420
03421
03422 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03423 gp.x = (gp.x & ~0xF) | b[0];
03424 gp.y = (gp.y & ~0xF) | b[1];
03425 Direction chosen_dir = (Direction)b[2];
03426
03427
03428 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03429 if (HasBit(r, VETS_CANNOT_ENTER)) {
03430 goto invalid_rail;
03431 }
03432
03433 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03434 Track track = FindFirstTrack(chosen_track);
03435 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03436 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03437 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03438 MarkTileDirtyByTile(gp.new_tile);
03439 }
03440
03441
03442 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03443
03444 v->tile = gp.new_tile;
03445
03446 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03447 v->First()->PowerChanged();
03448 v->First()->UpdateAcceleration();
03449 }
03450
03451 v->track = chosen_track;
03452 assert(v->track);
03453 }
03454
03455
03456
03457 update_signals_crossing = true;
03458
03459 if (chosen_dir != v->direction) {
03460 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03461 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03462 DirDiff diff = DirDifference(v->direction, chosen_dir);
03463 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03464 }
03465 direction_changed = true;
03466 v->direction = chosen_dir;
03467 }
03468
03469 if (v->IsFrontEngine()) {
03470 v->wait_counter = 0;
03471
03472
03473 TileIndex crossing = TrainApproachingCrossingTile(v);
03474 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03475
03476
03477 CheckNextTrainTile(v);
03478 }
03479
03480 if (HasBit(r, VETS_ENTERED_STATION)) {
03481
03482 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03483 }
03484 }
03485 } else {
03486
03487
03488
03489 if (!(v->vehstatus & VS_HIDDEN)) {
03490 v->cur_speed =
03491 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03492 }
03493
03494 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03495
03496 if (v->IsFrontEngine()) {
03497 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03498 CheckNextTrainTile(v);
03499 }
03500 } else {
03501 v->x_pos = gp.x;
03502 v->y_pos = gp.y;
03503 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03504 continue;
03505 }
03506 }
03507
03508
03509 v->UpdateDeltaXY(v->direction);
03510
03511 v->x_pos = gp.x;
03512 v->y_pos = gp.y;
03513
03514
03515 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03516
03517 if (prev == NULL) {
03518
03519 AffectSpeedByZChange(v, old_z);
03520 }
03521
03522 if (update_signals_crossing) {
03523 if (v->IsFrontEngine()) {
03524 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03525
03526
03527
03528
03529
03530
03531
03532
03533 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03534 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03535 !TryPathReserve(v)) {
03536 MarkTrainAsStuck(v);
03537 }
03538 }
03539 }
03540
03541
03542
03543 if (v->Next() == NULL) {
03544 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03545 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03546 }
03547 }
03548
03549
03550 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03551 }
03552
03553 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03554
03555 return;
03556
03557 invalid_rail:
03558
03559 if (prev != NULL) error("Disconnecting train");
03560
03561 reverse_train_direction:
03562 v->wait_counter = 0;
03563 v->cur_speed = 0;
03564 v->subspeed = 0;
03565 ReverseTrainDirection(v);
03566 }
03567
03573 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03574 {
03575 TrackBits *trackbits = (TrackBits *)data;
03576
03577 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03578 if (Train::From(v)->track == TRACK_BIT_WORMHOLE) {
03579
03580 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03581 } else {
03582 *trackbits |= Train::From(v)->track;
03583 }
03584 }
03585
03586 return NULL;
03587 }
03588
03596 static void DeleteLastWagon(Train *v)
03597 {
03598 Train *first = v->First();
03599
03600
03601
03602
03603 Train *u = v;
03604 for (; v->Next() != NULL; v = v->Next()) u = v;
03605 u->SetNext(NULL);
03606
03607 if (first != v) {
03608
03609 first->ConsistChanged(false);
03610
03611
03612 if (first->track == TRACK_BIT_DEPOT) {
03613 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03614 }
03615 }
03616
03617
03618 TrackBits trackbits = v->track;
03619 TileIndex tile = v->tile;
03620 Owner owner = v->owner;
03621
03622 delete v;
03623 v = NULL;
03624
03625 if (trackbits == TRACK_BIT_WORMHOLE) {
03626
03627 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03628 }
03629
03630 Track track = TrackBitsToTrack(trackbits);
03631 if (HasReservedTracks(tile, trackbits)) {
03632 UnreserveRailTrack(tile, track);
03633
03634
03635 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03636 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03637
03638
03639 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03640 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03641 if (HasBit(remaining_trackbits, t)) {
03642 TryReserveRailTrack(tile, t);
03643 }
03644 }
03645 }
03646
03647
03648 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03649
03650
03651 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03652 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03653 } else {
03654 SetSignalsOnBothDir(tile, track, owner);
03655 }
03656 }
03657
03658 static void ChangeTrainDirRandomly(Train *v)
03659 {
03660 static const DirDiff delta[] = {
03661 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03662 };
03663
03664 do {
03665
03666 if (!(v->vehstatus & VS_HIDDEN)) {
03667 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03668 v->UpdateDeltaXY(v->direction);
03669 v->cur_image = v->GetImage(v->direction);
03670
03671
03672
03673 if (v->track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
03674 }
03675 } while ((v = v->Next()) != NULL);
03676 }
03677
03678 static bool HandleCrashedTrain(Train *v)
03679 {
03680 int state = ++v->crash_anim_pos;
03681
03682 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03683 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03684 }
03685
03686 uint32 r;
03687 if (state <= 200 && Chance16R(1, 7, r)) {
03688 int index = (r * 10 >> 16);
03689
03690 Vehicle *u = v;
03691 do {
03692 if (--index < 0) {
03693 r = Random();
03694
03695 CreateEffectVehicleRel(u,
03696 GB(r, 8, 3) + 2,
03697 GB(r, 16, 3) + 2,
03698 GB(r, 0, 3) + 5,
03699 EV_EXPLOSION_SMALL);
03700 break;
03701 }
03702 } while ((u = u->Next()) != NULL);
03703 }
03704
03705 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03706
03707 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03708 bool ret = v->Next() != NULL;
03709 DeleteLastWagon(v);
03710 return ret;
03711 }
03712
03713 return true;
03714 }
03715
03716 static void HandleBrokenTrain(Train *v)
03717 {
03718 if (v->breakdown_ctr != 1) {
03719 v->breakdown_ctr = 1;
03720 v->cur_speed = 0;
03721
03722 if (v->breakdowns_since_last_service != 255)
03723 v->breakdowns_since_last_service++;
03724
03725 v->MarkDirty();
03726 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03727 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
03728
03729 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
03730 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
03731 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
03732 }
03733
03734 if (!(v->vehstatus & VS_HIDDEN)) {
03735 EffectVehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
03736 if (u != NULL) u->animation_state = v->breakdown_delay * 2;
03737 }
03738 }
03739
03740 if (!(v->tick_counter & 3)) {
03741 if (!--v->breakdown_delay) {
03742 v->breakdown_ctr = 0;
03743 v->MarkDirty();
03744 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03745 }
03746 }
03747 }
03748
03750 static const uint16 _breakdown_speeds[16] = {
03751 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03752 };
03753
03754
03762 static bool TrainApproachingLineEnd(Train *v, bool signal)
03763 {
03764
03765 uint x = v->x_pos & 0xF;
03766 uint y = v->y_pos & 0xF;
03767
03768
03769
03770 switch (v->direction) {
03771 case DIR_N : x = ~x + ~y + 25; break;
03772 case DIR_NW: x = y;
03773 case DIR_NE: x = ~x + 16; break;
03774 case DIR_E : x = ~x + y + 9; break;
03775 case DIR_SE: x = y; break;
03776 case DIR_S : x = x + y - 7; break;
03777 case DIR_W : x = ~y + x + 9; break;
03778 default: break;
03779 }
03780
03781
03782 if (!signal && x + (v->tcache.cached_veh_length + 1) / 2 >= TILE_SIZE) {
03783
03784 v->cur_speed = 0;
03785 ReverseTrainDirection(v);
03786 return false;
03787 }
03788
03789
03790 v->vehstatus |= VS_TRAIN_SLOWING;
03791 uint16 break_speed = _breakdown_speeds[x & 0xF];
03792 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03793
03794 return true;
03795 }
03796
03797
03803 static bool TrainCanLeaveTile(const Train *v)
03804 {
03805
03806 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03807
03808 TileIndex tile = v->tile;
03809
03810
03811 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03812 DiagDirection dir = GetTunnelBridgeDirection(tile);
03813 if (DiagDirToDir(dir) == v->direction) return false;
03814 }
03815
03816
03817 if (IsRailDepotTile(tile)) {
03818 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03819 if (DiagDirToDir(dir) == v->direction) return false;
03820 }
03821
03822 return true;
03823 }
03824
03825
03833 static TileIndex TrainApproachingCrossingTile(const Train *v)
03834 {
03835 assert(v->IsFrontEngine());
03836 assert(!(v->vehstatus & VS_CRASHED));
03837
03838 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03839
03840 DiagDirection dir = TrainExitDir(v->direction, v->track);
03841 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03842
03843
03844 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03845 !CheckCompatibleRail(v, tile)) {
03846 return INVALID_TILE;
03847 }
03848
03849 return tile;
03850 }
03851
03852
03859 static bool TrainCheckIfLineEnds(Train *v)
03860 {
03861
03862
03863 int t = v->breakdown_ctr;
03864 if (t > 1) {
03865 v->vehstatus |= VS_TRAIN_SLOWING;
03866
03867 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03868 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03869 } else {
03870 v->vehstatus &= ~VS_TRAIN_SLOWING;
03871 }
03872
03873 if (!TrainCanLeaveTile(v)) return true;
03874
03875
03876 DiagDirection dir = TrainExitDir(v->direction, v->track);
03877
03878 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03879
03880
03881 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03882 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03883
03884 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03885 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03886
03887
03888
03889
03890 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03891 if (_settings_game.pf.forbid_90_deg) {
03892 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03893 }
03894
03895
03896 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03897 return TrainApproachingLineEnd(v, false);
03898 }
03899
03900
03901 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
03902
03903
03904 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03905
03906 return true;
03907 }
03908
03909
03910 static bool TrainLocoHandler(Train *v, bool mode)
03911 {
03912
03913 if (v->vehstatus & VS_CRASHED) {
03914 return mode ? true : HandleCrashedTrain(v);
03915 }
03916
03917 if (v->force_proceed != 0) {
03918 ClrBit(v->flags, VRF_TRAIN_STUCK);
03919 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03920 }
03921
03922
03923 if (v->breakdown_ctr != 0) {
03924 if (v->breakdown_ctr <= 2) {
03925 HandleBrokenTrain(v);
03926 return true;
03927 }
03928 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
03929 }
03930
03931 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03932 ReverseTrainDirection(v);
03933 }
03934
03935
03936 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03937
03938 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03939 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03940 v->wait_counter = 0;
03941 v->cur_speed = 0;
03942 v->subspeed = 0;
03943 ReverseTrainDirection(v);
03944 return true;
03945 }
03946
03947 v->HandleLoading(mode);
03948
03949 if (v->current_order.IsType(OT_LOADING)) return true;
03950
03951 if (CheckTrainStayInDepot(v)) return true;
03952
03953 if (!mode) HandleLocomotiveSmokeCloud(v);
03954
03955
03956 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03957 CheckNextTrainTile(v);
03958 }
03959
03960
03961 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03962 ++v->wait_counter;
03963
03964
03965 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.wait_for_pbs_path < 255;
03966
03967 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == 0) return true;
03968 if (!TryPathReserve(v)) {
03969
03970 if (turn_around) ReverseTrainDirection(v);
03971
03972 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03973
03974 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
03975 SetDParam(0, v->index);
03976 AddVehicleNewsItem(
03977 STR_NEWS_TRAIN_IS_STUCK,
03978 NS_ADVICE,
03979 v->index
03980 );
03981 }
03982 v->wait_counter = 0;
03983 }
03984
03985 if (v->force_proceed == 0) return true;
03986 ClrBit(v->flags, VRF_TRAIN_STUCK);
03987 v->wait_counter = 0;
03988 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03989 }
03990 }
03991
03992 if (v->current_order.IsType(OT_LEAVESTATION)) {
03993 v->current_order.Free();
03994 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03995 return true;
03996 }
03997
03998 int j = v->UpdateSpeed();
03999
04000
04001 if (v->cur_speed == 0 && v->tcache.last_speed == 0 && (v->vehstatus & VS_STOPPED)) {
04002
04003 v->force_proceed = 0;
04004 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04005 }
04006
04007 int adv_spd = (v->direction & 1) ? 192 : 256;
04008 if (j < adv_spd) {
04009
04010 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04011 } else {
04012 TrainCheckIfLineEnds(v);
04013
04014 for (;;) {
04015 j -= adv_spd;
04016 TrainController(v, NULL);
04017
04018 if (CheckTrainCollision(v)) break;
04019
04020 adv_spd = (v->direction & 1) ? 192 : 256;
04021
04022
04023 if (j < adv_spd || v->cur_speed == 0) break;
04024
04025 OrderType order_type = v->current_order.GetType();
04026
04027 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
04028 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
04029 IsTileType(v->tile, MP_STATION) &&
04030 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
04031 ProcessOrders(v);
04032 }
04033 }
04034 SetLastSpeed(v, v->cur_speed);
04035 }
04036
04037 for (Train *u = v; u != NULL; u = u->Next()) {
04038 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04039
04040 u->UpdateViewport(false, false);
04041 }
04042
04043 if (v->progress == 0) v->progress = j;
04044
04045 return true;
04046 }
04047
04048
04049
04050 Money Train::GetRunningCost() const
04051 {
04052 Money cost = 0;
04053 const Train *v = this;
04054
04055 do {
04056 const Engine *e = Engine::Get(v->engine_type);
04057 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
04058
04059 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
04060 if (cost_factor == 0) continue;
04061
04062
04063 if (v->IsMultiheaded()) cost_factor /= 2;
04064
04065 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->grffile);
04066 } while ((v = v->GetNextVehicle()) != NULL);
04067
04068 return cost;
04069 }
04070
04071
04072 bool Train::Tick()
04073 {
04074 this->tick_counter++;
04075
04076 if (this->IsFrontEngine()) {
04077 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04078
04079 this->current_order_time++;
04080
04081 if (!TrainLocoHandler(this, false)) return false;
04082
04083 return TrainLocoHandler(this, true);
04084 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
04085
04086 if (++this->crash_anim_pos >= 4400) {
04087 delete this;
04088 return false;
04089 }
04090 }
04091
04092 return true;
04093 }
04094
04095 static void CheckIfTrainNeedsService(Train *v)
04096 {
04097 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04098 if (v->IsInDepot()) {
04099 VehicleServiceInDepot(v);
04100 return;
04101 }
04102
04103 uint max_penalty;
04104 switch (_settings_game.pf.pathfinder_for_trains) {
04105 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
04106 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
04107 default: NOT_REACHED();
04108 }
04109
04110 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
04111
04112 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
04113 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04114
04115
04116
04117 v->current_order.MakeDummy();
04118 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04119 }
04120 return;
04121 }
04122
04123 DepotID depot = GetDepotIndex(tfdd.tile);
04124
04125 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04126 v->current_order.GetDestination() != depot &&
04127 !Chance16(3, 16)) {
04128 return;
04129 }
04130
04131 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
04132 v->dest_tile = tfdd.tile;
04133 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04134 }
04135
04136 void Train::OnNewDay()
04137 {
04138 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04139
04140 if (this->IsFrontEngine()) {
04141 CheckVehicleBreakdown(this);
04142 AgeVehicle(this);
04143
04144 CheckIfTrainNeedsService(this);
04145
04146 CheckOrders(this);
04147
04148
04149 if (this->current_order.IsType(OT_GOTO_STATION)) {
04150 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
04151 if (tile != INVALID_TILE) this->dest_tile = tile;
04152 }
04153
04154 if (this->running_ticks != 0) {
04155
04156 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04157
04158 this->profit_this_year -= cost.GetCost();
04159 this->running_ticks = 0;
04160
04161 SubtractMoneyFromCompanyFract(this->owner, cost);
04162
04163 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
04164 SetWindowClassesDirty(WC_TRAINS_LIST);
04165 }
04166 } else if (this->IsEngine()) {
04167
04168 AgeVehicle(this);
04169 }
04170 }
04171
04172 Trackdir Train::GetVehicleTrackdir() const
04173 {
04174 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
04175
04176 if (this->track == TRACK_BIT_DEPOT) {
04177
04178 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
04179 }
04180
04181 if (this->track == TRACK_BIT_WORMHOLE) {
04182
04183 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
04184 }
04185
04186 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
04187 }