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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 (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 EngineID eid = GB(p1, 0, 16);
00820
00821 if (!IsEngineBuildable(eid, VEH_TRAIN, _current_company)) return_cmd_error(STR_ERROR_RAIL_VEHICLE_NOT_AVAILABLE);
00822
00823 const Engine *e = Engine::Get(eid);
00824 const RailVehicleInfo *rvi = &e->u.rail;
00825 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00826
00827
00828 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00829
00830 if (flags & DC_QUERY_COST) return value;
00831
00832
00833
00834 if (!IsRailDepotTile(tile)) return CMD_ERROR;
00835 if (!IsTileOwner(tile, _current_company)) return CMD_ERROR;
00836
00837 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(eid, tile, flags);
00838
00839 uint num_vehicles =
00840 (rvi->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1) +
00841 CountArticulatedParts(eid, false);
00842
00843
00844
00845 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00846
00847
00848 if (!Vehicle::CanAllocateItem(num_vehicles)) {
00849 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00850 }
00851
00852 UnitID unit_num = (flags & DC_AUTOREPLACE) ? 0 : GetFreeUnitNumber(VEH_TRAIN);
00853 if (unit_num > _settings_game.vehicle.max_trains) {
00854 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00855 }
00856
00857 if (flags & DC_EXEC) {
00858 DiagDirection dir = GetRailDepotDirection(tile);
00859 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00860 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00861
00862 Train *v = new Train();
00863 v->unitnumber = unit_num;
00864 v->direction = DiagDirToDir(dir);
00865 v->tile = tile;
00866 v->owner = _current_company;
00867 v->x_pos = x;
00868 v->y_pos = y;
00869 v->z_pos = GetSlopeZ(x, y);
00870 v->track = TRACK_BIT_DEPOT;
00871 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00872 v->spritenum = rvi->image_index;
00873 v->cargo_type = e->GetDefaultCargoType();
00874 v->cargo_cap = rvi->capacity;
00875 v->max_speed = rvi->max_speed;
00876 v->value = value.GetCost();
00877 v->last_station_visited = INVALID_STATION;
00878
00879 v->engine_type = eid;
00880 v->tcache.first_engine = INVALID_ENGINE;
00881
00882 v->reliability = e->reliability;
00883 v->reliability_spd_dec = e->reliability_spd_dec;
00884 v->max_age = e->GetLifeLengthInDays();
00885
00886 v->railtype = rvi->railtype;
00887 _new_vehicle_id = v->index;
00888
00889 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00890 v->date_of_last_service = _date;
00891 v->build_year = _cur_year;
00892 v->cur_image = SPR_IMG_QUERY;
00893 v->random_bits = VehicleRandomBits();
00894
00895 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00896
00897 v->group_id = DEFAULT_GROUP;
00898
00899 v->SetFrontEngine();
00900 v->SetEngine();
00901
00902 VehicleMove(v, false);
00903
00904 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00905 AddRearEngineToMultiheadedTrain(v);
00906 } else {
00907 AddArticulatedParts(v);
00908 }
00909
00910 v->ConsistChanged(false);
00911 UpdateTrainGroupID(v);
00912
00913 if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) {
00914 NormalizeTrainVehInDepot(v);
00915 }
00916
00917 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00918 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
00919 SetWindowDirty(WC_COMPANY, v->owner);
00920 if (IsLocalCompany()) {
00921 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00922 }
00923
00924 Company::Get(_current_company)->num_engines[eid]++;
00925
00926 CheckConsistencyOfArticulatedVehicle(v);
00927 }
00928
00929 return value;
00930 }
00931
00932
00933 bool Train::IsInDepot() const
00934 {
00935
00936 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00937
00938
00939 for (const Train *v = this; v != NULL; v = v->Next()) {
00940 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00941 }
00942
00943 return true;
00944 }
00945
00946 bool Train::IsStoppedInDepot() const
00947 {
00948
00949 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00950 return this->IsInDepot();
00951 }
00952
00953 static Train *FindGoodVehiclePos(const Train *src)
00954 {
00955 EngineID eng = src->engine_type;
00956 TileIndex tile = src->tile;
00957
00958 Train *dst;
00959 FOR_ALL_TRAINS(dst) {
00960 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00961
00962 Train *t = dst;
00963 while (t->engine_type == eng) {
00964 t = t->Next();
00965 if (t == NULL) return dst;
00966 }
00967 }
00968 }
00969
00970 return NULL;
00971 }
00972
00974 typedef SmallVector<Train *, 16> TrainList;
00975
00981 static void MakeTrainBackup(TrainList &list, Train *t)
00982 {
00983 for (; t != NULL; t = t->Next()) *list.Append() = t;
00984 }
00985
00990 static void RestoreTrainBackup(TrainList &list)
00991 {
00992
00993 if (list.Length() == 0) return;
00994
00995 Train *prev = NULL;
00996
00997 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00998 Train *t = *iter;
00999 if (prev != NULL) {
01000 prev->SetNext(t);
01001 } else if (t->Previous() != NULL) {
01002
01003 t->Previous()->SetNext(NULL);
01004 }
01005 prev = t;
01006 }
01007 }
01008
01014 static void RemoveFromConsist(Train *part, bool chain = false)
01015 {
01016 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
01017
01018
01019
01020 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
01021
01022
01023 tail->SetNext(NULL);
01024 }
01025
01031 static void InsertInConsist(Train *dst, Train *chain)
01032 {
01033
01034 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
01035
01036 chain->Last()->SetNext(dst->Next());
01037 dst->SetNext(chain);
01038 }
01039
01045 static void NormaliseDualHeads(Train *t)
01046 {
01047 for (; t != NULL; t = t->GetNextVehicle()) {
01048 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
01049
01050
01051 Train *u;
01052 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
01053
01054 if (u == t->other_multiheaded_part) continue;
01055
01056
01057 RemoveFromConsist(t->other_multiheaded_part);
01058
01059 InsertInConsist(u, t->other_multiheaded_part);
01060 }
01061 }
01062
01067 static void NormaliseSubtypes(Train *chain)
01068 {
01069
01070 if (chain == NULL) return;
01071
01072
01073 assert(chain->Previous() == NULL);
01074
01075
01076 if (chain->IsWagon()) {
01077 chain->SetFreeWagon();
01078 } else {
01079 assert(chain->IsEngine());
01080 chain->SetFrontEngine();
01081 }
01082
01083
01084 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
01085 t->ClearFreeWagon();
01086 t->ClearFrontEngine();
01087 }
01088 }
01089
01099 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
01100 {
01101
01102
01103
01104 if ((src != NULL && src->IsEngine() ? 1 : 0) +
01105 (dst != NULL && dst->IsEngine() ? 1 : 0) -
01106 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
01107 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
01108 return CommandCost();
01109 }
01110
01111
01112
01113 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
01114
01115 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
01116 }
01117
01123 static CommandCost CheckTrainAttachment(Train *t)
01124 {
01125
01126 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
01127
01128
01129
01130 int allowed_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
01131
01132 Train *head = t;
01133 Train *prev = t;
01134
01135
01136 t = t->Next();
01137 allowed_len--;
01138 prev->SetNext(NULL);
01139
01140
01141 head->InvalidateNewGRFCache();
01142
01143 while (t != NULL) {
01144 Train *next = t->Next();
01145
01146
01147
01148 t->SetNext(NULL);
01149
01150
01151 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
01152 allowed_len--;
01153
01154
01155 EngineID first_engine = t->tcache.first_engine;
01156 t->tcache.first_engine = INVALID_ENGINE;
01157
01158
01159
01160 t->InvalidateNewGRFCache();
01161
01162 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
01163
01164
01165 t->tcache.first_engine = first_engine;
01166
01167
01168 t->InvalidateNewGRFCache();
01169 head->InvalidateNewGRFCache();
01170
01171 if (callback != CALLBACK_FAILED) {
01172
01173 StringID error = STR_NULL;
01174
01175 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
01176 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(head->engine_type), 0xD000 + callback);
01177
01178 if (error != STR_NULL) return_cmd_error(error);
01179 }
01180 }
01181
01182
01183 prev->SetNext(t);
01184 prev = t;
01185 t = next;
01186 }
01187
01188 if (allowed_len <= 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01189 return CommandCost();
01190 }
01191
01201 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src)
01202 {
01203
01204 CommandCost ret = CheckTrainAttachment(src);
01205 if (ret.Failed()) return ret;
01206 ret = CheckTrainAttachment(dst);
01207 if (ret.Failed()) return ret;
01208
01209
01210 return CheckNewTrain(original_dst, dst, original_src, src);
01211 }
01212
01221 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01222 {
01223
01224 if (*src_head == *dst_head) {
01225
01226
01227 *dst_head = NULL;
01228 } else if (*dst_head == NULL) {
01229
01230
01231 *dst_head = src;
01232 }
01233
01234 if (src == *src_head) {
01235
01236
01237
01238
01239
01240
01241 *src_head = move_chain ? NULL :
01242 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01243 }
01244
01245
01246
01247
01248 RemoveFromConsist(src, move_chain);
01249 if (*dst_head != src) InsertInConsist(dst, src);
01250
01251
01252
01253 NormaliseDualHeads(*src_head);
01254 NormaliseDualHeads(*dst_head);
01255 }
01256
01262 static void NormaliseTrainHead(Train *head)
01263 {
01264
01265 if (head == NULL) return;
01266
01267
01268 head->ConsistChanged(false);
01269 UpdateTrainGroupID(head);
01270
01271
01272 if (!head->IsFrontEngine()) return;
01273
01274
01275 SetWindowDirty(WC_VEHICLE_REFIT, head->index);
01276 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, VVW_WIDGET_REFIT_VEH);
01277
01278
01279 if (head->unitnumber != 0) return;
01280 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01281 }
01282
01294 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01295 {
01296 VehicleID s = GB(p1, 0, 16);
01297 VehicleID d = GB(p1, 16, 16);
01298 bool move_chain = HasBit(p2, 0);
01299
01300 Train *src = Train::GetIfValid(s);
01301 if (src == NULL || !CheckOwnership(src->owner)) return CMD_ERROR;
01302
01303
01304 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01305
01306
01307 Train *dst;
01308 if (d == INVALID_VEHICLE) {
01309 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01310 } else {
01311 dst = Train::GetIfValid(d);
01312 if (dst == NULL || !CheckOwnership(dst->owner)) return CMD_ERROR;
01313
01314
01315 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01316 }
01317
01318
01319 src = src->GetFirstEnginePart();
01320 if (dst != NULL) {
01321 dst = dst->GetFirstEnginePart();
01322 }
01323
01324
01325 if (src == dst) return CommandCost();
01326
01327
01328 Train *src_head = src->First();
01329 Train *dst_head;
01330 if (dst != NULL) {
01331 dst_head = dst->First();
01332 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01333
01334 dst = dst->GetLastEnginePart();
01335 } else {
01336 dst_head = NULL;
01337 }
01338
01339 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01340
01341
01342 if (move_chain && src_head == dst_head) return CommandCost();
01343
01344
01345 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01346
01347
01348 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01349
01350
01351 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01352
01353
01354
01355 TrainList original_src;
01356 TrainList original_dst;
01357
01358 MakeTrainBackup(original_src, src_head);
01359 MakeTrainBackup(original_dst, dst_head);
01360
01361
01362
01363
01364 Train *original_src_head = src_head;
01365 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01366
01367
01368 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01369
01370 if ((flags & DC_AUTOREPLACE) == 0) {
01371
01372
01373
01374 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head);
01375 if (ret.Failed()) {
01376
01377 RestoreTrainBackup(original_src);
01378 RestoreTrainBackup(original_dst);
01379 return ret;
01380 }
01381 }
01382
01383
01384 if (flags & DC_EXEC) {
01385
01386 NormaliseSubtypes(src_head);
01387 NormaliseSubtypes(dst_head);
01388
01389
01390
01391
01392
01393
01394
01395
01396
01397
01398
01399
01400
01401
01402
01403
01404
01405
01406
01407
01408
01409 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01410
01411 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01412 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01413 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01414 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01415 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01416
01417
01418
01419
01420
01421
01422
01423
01424 if (dst_head != NULL ? dst_head != src : !src_head->IsFrontEngine()) {
01425 DecreaseGroupNumVehicle(src->group_id);
01426 }
01427
01428
01429
01430 DeleteVehicleOrders(src);
01431 RemoveVehicleFromGroup(src);
01432 src->unitnumber = 0;
01433 }
01434
01435
01436
01437 if (original_src_head != src && dst_head == src) {
01438 SetTrainGroupID(src, DEFAULT_GROUP);
01439 }
01440
01441
01442 NormaliseTrainHead(src_head);
01443 NormaliseTrainHead(dst_head);
01444
01445
01446 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01447 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01448 } else {
01449
01450 RestoreTrainBackup(original_src);
01451 RestoreTrainBackup(original_dst);
01452 }
01453
01454 return CommandCost();
01455 }
01456
01468 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01469 {
01470
01471 Window *w = NULL;
01472
01473 Train *v = Train::GetIfValid(p1);
01474 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
01475
01476
01477 bool sell_chain = HasBit(p2, 0);
01478
01479 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_SELL_DESTROYED_VEHICLE);
01480
01481 v = v->GetFirstEnginePart();
01482 Train *first = v->First();
01483
01484
01485 if (!first->IsStoppedInDepot()) {
01486 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01487 }
01488
01489 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01490
01491
01492
01493 TrainList original;
01494 MakeTrainBackup(original, first);
01495
01496
01497 Train *new_head = first;
01498 Train *sell_head = NULL;
01499
01500
01501 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01502
01503
01504 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head);
01505 if (ret.Failed()) {
01506
01507 RestoreTrainBackup(original);
01508 return ret;
01509 }
01510
01511 CommandCost cost(EXPENSES_NEW_VEHICLES);
01512 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01513
01514
01515 if (flags & DC_EXEC) {
01516
01517 NormaliseSubtypes(new_head);
01518
01519 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01520
01521
01522 new_head->orders.list = first->orders.list;
01523 new_head->AddToShared(first);
01524 DeleteVehicleOrders(first);
01525
01526
01527 new_head->CopyVehicleConfigAndStatistics(first);
01528 IncreaseGroupNumVehicle(new_head->group_id);
01529
01530
01531 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01532 }
01533
01534
01535 NormaliseTrainHead(new_head);
01536
01537
01538 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01539 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01540
01541
01542 delete sell_head;
01543 } else {
01544
01545 RestoreTrainBackup(original);
01546 }
01547
01548 return cost;
01549 }
01550
01551 void Train::UpdateDeltaXY(Direction direction)
01552 {
01553 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01554 static const uint32 _delta_xy_table[8] = {
01555 MKIT(3, 3, -1, -1),
01556 MKIT(3, 7, -1, -3),
01557 MKIT(3, 3, -1, -1),
01558 MKIT(7, 3, -3, -1),
01559 MKIT(3, 3, -1, -1),
01560 MKIT(3, 7, -1, -3),
01561 MKIT(3, 3, -1, -1),
01562 MKIT(7, 3, -3, -1),
01563 };
01564 #undef MKIT
01565
01566 uint32 x = _delta_xy_table[direction];
01567 this->x_offs = GB(x, 0, 8);
01568 this->y_offs = GB(x, 8, 8);
01569 this->x_extent = GB(x, 16, 8);
01570 this->y_extent = GB(x, 24, 8);
01571 this->z_extent = 6;
01572 }
01573
01574 static inline void SetLastSpeed(Train *v, int spd)
01575 {
01576 int old = v->tcache.last_speed;
01577 if (spd != old) {
01578 v->tcache.last_speed = spd;
01579 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01580 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01581 }
01582 }
01583 }
01584
01586 static void MarkTrainAsStuck(Train *v)
01587 {
01588 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01589
01590 SetBit(v->flags, VRF_TRAIN_STUCK);
01591
01592 v->wait_counter = 0;
01593
01594
01595 v->cur_speed = 0;
01596 v->subspeed = 0;
01597 SetLastSpeed(v, 0);
01598
01599 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01600 }
01601 }
01602
01603 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01604 {
01605 uint16 flag1 = *swap_flag1;
01606 uint16 flag2 = *swap_flag2;
01607
01608
01609 ClrBit(*swap_flag1, VRF_GOINGUP);
01610 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01611 ClrBit(*swap_flag2, VRF_GOINGUP);
01612 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01613
01614
01615 if (HasBit(flag1, VRF_GOINGUP)) {
01616 SetBit(*swap_flag2, VRF_GOINGDOWN);
01617 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01618 SetBit(*swap_flag2, VRF_GOINGUP);
01619 }
01620 if (HasBit(flag2, VRF_GOINGUP)) {
01621 SetBit(*swap_flag1, VRF_GOINGDOWN);
01622 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01623 SetBit(*swap_flag1, VRF_GOINGUP);
01624 }
01625 }
01626
01627 static void ReverseTrainSwapVeh(Train *v, int l, int r)
01628 {
01629 Train *a, *b;
01630
01631
01632 for (a = v; l != 0; l--) a = a->Next();
01633 for (b = v; r != 0; r--) b = b->Next();
01634
01635 if (a != b) {
01636
01637 {
01638 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01639 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01640 a->vehstatus = tmp;
01641 }
01642
01643 Swap(a->track, b->track);
01644 Swap(a->direction, b->direction);
01645
01646
01647 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01648 if (b->track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01649
01650 Swap(a->x_pos, b->x_pos);
01651 Swap(a->y_pos, b->y_pos);
01652 Swap(a->tile, b->tile);
01653 Swap(a->z_pos, b->z_pos);
01654
01655 SwapTrainFlags(&a->flags, &b->flags);
01656
01657
01658 a->UpdateViewport(true, true);
01659 b->UpdateViewport(true, true);
01660
01661
01662 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01663 if (b->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01664 } else {
01665 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01666 a->UpdateViewport(true, true);
01667
01668 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01669 }
01670
01671
01672 v->PowerChanged();
01673 }
01674
01675
01681 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01682 {
01683 return (v->type == VEH_TRAIN) ? v : NULL;
01684 }
01685
01686
01693 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01694 {
01695 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01696
01697 Train *t = Train::From(v);
01698 if (!t->IsFrontEngine()) return NULL;
01699
01700 TileIndex tile = *(TileIndex *)data;
01701
01702 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01703
01704 return t;
01705 }
01706
01707
01714 static bool TrainApproachingCrossing(TileIndex tile)
01715 {
01716 assert(IsLevelCrossingTile(tile));
01717
01718 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01719 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01720
01721 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01722
01723 dir = ReverseDiagDir(dir);
01724 tile_from = tile + TileOffsByDiagDir(dir);
01725
01726 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01727 }
01728
01729
01736 void UpdateLevelCrossing(TileIndex tile, bool sound)
01737 {
01738 assert(IsLevelCrossingTile(tile));
01739
01740
01741 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01742
01743 if (new_state != IsCrossingBarred(tile)) {
01744 if (new_state && sound) {
01745 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01746 }
01747 SetCrossingBarred(tile, new_state);
01748 MarkTileDirtyByTile(tile);
01749 }
01750 }
01751
01752
01758 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01759 {
01760 if (!IsCrossingBarred(tile)) {
01761 BarCrossing(tile);
01762 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01763 MarkTileDirtyByTile(tile);
01764 }
01765 }
01766
01767
01773 static void AdvanceWagonsBeforeSwap(Train *v)
01774 {
01775 Train *base = v;
01776 Train *first = base;
01777 Train *last = v->Last();
01778 uint length = CountVehiclesInChain(v);
01779
01780 while (length > 2) {
01781 last = last->Previous();
01782 first = first->Next();
01783
01784 int differential = base->tcache.cached_veh_length - last->tcache.cached_veh_length;
01785
01786
01787
01788 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01789
01790 base = first;
01791 length -= 2;
01792 }
01793 }
01794
01795
01801 static void AdvanceWagonsAfterSwap(Train *v)
01802 {
01803
01804 Train *dep = v;
01805 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01806 dep = dep->Next();
01807 }
01808
01809 Train *leave = dep->Next();
01810
01811 if (leave != NULL) {
01812
01813 int d = TicksToLeaveDepot(dep);
01814
01815 if (d <= 0) {
01816 leave->vehstatus &= ~VS_HIDDEN;
01817 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01818 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01819 }
01820 } else {
01821 dep = NULL;
01822 }
01823
01824 Train *base = v;
01825 Train *first = base;
01826 Train *last = v->Last();
01827 uint length = CountVehiclesInChain(v);
01828
01829
01830
01831 bool nomove = (dep == NULL);
01832
01833 while (length > 2) {
01834
01835
01836 if (base == dep) break;
01837
01838
01839 if (last == dep) nomove = true;
01840
01841 last = last->Previous();
01842 first = first->Next();
01843
01844 int differential = last->tcache.cached_veh_length - base->tcache.cached_veh_length;
01845
01846
01847 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01848
01849 base = first;
01850 length -= 2;
01851 }
01852 }
01853
01854
01855 static void ReverseTrainDirection(Train *v)
01856 {
01857 if (IsRailDepotTile(v->tile)) {
01858 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01859 }
01860
01861
01862 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01863
01864
01865 TileIndex crossing = TrainApproachingCrossingTile(v);
01866
01867
01868 int r = CountVehiclesInChain(v) - 1;
01869
01870 AdvanceWagonsBeforeSwap(v);
01871
01872
01873 int l = 0;
01874 do {
01875 ReverseTrainSwapVeh(v, l++, r--);
01876 } while (l <= r);
01877
01878 AdvanceWagonsAfterSwap(v);
01879
01880 if (IsRailDepotTile(v->tile)) {
01881 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01882 }
01883
01884 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01885
01886 ClrBit(v->flags, VRF_REVERSING);
01887
01888
01889 v->ConsistChanged(true);
01890
01891
01892 for (Vehicle *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01893
01894
01895 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01896
01897
01898 crossing = TrainApproachingCrossingTile(v);
01899 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01900
01901
01902 if (v->track == TRACK_BIT_DEPOT) {
01903
01904 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01905 ClrBit(v->flags, VRF_TRAIN_STUCK);
01906 return;
01907 }
01908
01909
01910
01911 DiagDirection dir = TrainExitDir(v->direction, v->track);
01912 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01913
01914 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01915
01916
01917 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01918 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01919 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01920
01921 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01922 if (TryPathReserve(v, false, first_tile_okay)) {
01923
01924 CheckNextTrainTile(v);
01925 } else if (v->current_order.GetType() != OT_LOADING) {
01926
01927 MarkTrainAsStuck(v);
01928 }
01929 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01930
01931 ClrBit(v->flags, VRF_TRAIN_STUCK);
01932 v->wait_counter = 0;
01933 }
01934 }
01935
01944 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01945 {
01946 Train *v = Train::GetIfValid(p1);
01947 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
01948
01949 if (p2 != 0) {
01950
01951
01952 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01953 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01954 }
01955
01956 Train *front = v->First();
01957
01958 if (!front->IsStoppedInDepot()) {
01959 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01960 }
01961
01962 if (flags & DC_EXEC) {
01963 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01964 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
01965 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
01966
01967 v->force_proceed = 0;
01968 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01969 }
01970 } else {
01971
01972 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01973
01974 if (flags & DC_EXEC) {
01975
01976 if (v->current_order.IsType(OT_LOADING)) {
01977 const Vehicle *last = v;
01978 while (last->Next() != NULL) last = last->Next();
01979
01980
01981 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01982 v->LeaveStation();
01983 }
01984 }
01985
01986
01987 v->force_proceed = 0;
01988 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01989
01990 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01991 ToggleBit(v->flags, VRF_REVERSING);
01992 } else {
01993 v->cur_speed = 0;
01994 SetLastSpeed(v, 0);
01995 HideFillingPercent(&v->fill_percent_te_id);
01996 ReverseTrainDirection(v);
01997 }
01998 }
01999 }
02000 return CommandCost();
02001 }
02002
02011 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02012 {
02013 Train *t = Train::GetIfValid(p1);
02014 if (t == NULL || !CheckOwnership(t->owner)) return CMD_ERROR;
02015
02016 if (flags & DC_EXEC) {
02017
02018
02019
02020
02021
02022 t->force_proceed = t->force_proceed == 2 ? 0 : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? 1 : 2;
02023 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
02024 }
02025
02026 return CommandCost();
02027 }
02028
02040 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02041 {
02042 CargoID new_cid = GB(p2, 0, 8);
02043 byte new_subtype = GB(p2, 8, 8);
02044 bool only_this = HasBit(p2, 16);
02045
02046 Train *v = Train::GetIfValid(p1);
02047 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
02048
02049 if (!v->IsStoppedInDepot()) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02050 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_REFIT_DESTROYED_VEHICLE);
02051
02052
02053 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02054
02055 CommandCost cost = RefitVehicle(v, only_this, new_cid, new_subtype, flags);
02056
02057
02058 if (flags & DC_EXEC) {
02059 Train *front = v->First();
02060 front->ConsistChanged(false);
02061 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
02062 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
02063 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02064 } else {
02065 v->InvalidateNewGRFCacheOfChain();
02066 }
02067
02068 return cost;
02069 }
02070
02073 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
02074 {
02075 assert(!(v->vehstatus & VS_CRASHED));
02076
02077 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
02078
02079 PBSTileInfo origin = FollowTrainReservation(v);
02080 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
02081
02082 switch (_settings_game.pf.pathfinder_for_trains) {
02083 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
02084 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
02085
02086 default: NOT_REACHED();
02087 }
02088 }
02089
02090 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02091 {
02092 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
02093 if (tfdd.best_length == UINT_MAX) return false;
02094
02095 if (location != NULL) *location = tfdd.tile;
02096 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
02097 if (reverse != NULL) *reverse = tfdd.reverse;
02098
02099 return true;
02100 }
02101
02112 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02113 {
02114 if (p2 & DEPOT_MASS_SEND) {
02115
02116 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02117 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02118 }
02119
02120 Train *v = Train::GetIfValid(p1);
02121 if (v == NULL) return CMD_ERROR;
02122
02123 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02124 }
02125
02126 static const int8 _vehicle_smoke_pos[8] = {
02127 1, 1, 1, 0, -1, -1, -1, 0
02128 };
02129
02130 static void HandleLocomotiveSmokeCloud(const Train *v)
02131 {
02132 bool sound = false;
02133
02134 if ((v->vehstatus & VS_TRAIN_SLOWING) || v->cur_speed < 2) {
02135 return;
02136 }
02137
02138 const Train *u = v;
02139
02140 do {
02141 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02142 int effect_offset = GB(v->tcache.cached_vis_effect, 0, 4) - 8;
02143 byte effect_type = GB(v->tcache.cached_vis_effect, 4, 2);
02144 bool disable_effect = HasBit(v->tcache.cached_vis_effect, 6);
02145
02146
02147 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02148 disable_effect ||
02149 v->vehstatus & VS_HIDDEN) {
02150 continue;
02151 }
02152
02153
02154 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02155
02156
02157 if (!HasPowerOnRail(v->railtype, GetTileRailType(v->tile))) continue;
02158
02159 if (effect_type == 0) {
02160
02161 effect_type = rvi->engclass;
02162 } else {
02163 effect_type--;
02164 }
02165
02166 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02167 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02168
02169 if (HasBit(v->flags, VRF_REVERSE_DIRECTION)) {
02170 x = -x;
02171 y = -y;
02172 }
02173
02174 switch (effect_type) {
02175 case 0:
02176
02177 if (GB(v->tick_counter, 0, 4) == 0) {
02178 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02179 sound = true;
02180 }
02181 break;
02182
02183 case 1:
02184
02185 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02186 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02187 sound = true;
02188 }
02189 break;
02190
02191 case 2:
02192
02193 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02194 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02195 sound = true;
02196 }
02197 break;
02198
02199 default:
02200 break;
02201 }
02202 } while ((v = v->Next()) != NULL);
02203
02204 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02205 }
02206
02207 void Train::PlayLeaveStationSound() const
02208 {
02209 static const SoundFx sfx[] = {
02210 SND_04_TRAIN,
02211 SND_0A_TRAIN_HORN,
02212 SND_0A_TRAIN_HORN,
02213 SND_47_MAGLEV_2,
02214 SND_41_MAGLEV
02215 };
02216
02217 if (PlayVehicleSound(this, VSE_START)) return;
02218
02219 EngineID engtype = this->engine_type;
02220 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02221 }
02222
02224 static void CheckNextTrainTile(Train *v)
02225 {
02226
02227 if (_settings_game.pf.path_backoff_interval == 255) return;
02228
02229
02230 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->track == TRACK_BIT_DEPOT) return;
02231
02232 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02233
02234 if (v->current_order.IsType(OT_GOTO_WAYPOINT) && IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
02235
02236 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02237
02238 Trackdir td = v->GetVehicleTrackdir();
02239
02240
02241 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02242 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02243 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02244
02245 CFollowTrackRail ft(v);
02246 if (!ft.Follow(v->tile, td)) return;
02247
02248 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02249
02250 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02251 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02252
02253 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02254 if (_settings_game.pf.forbid_90_deg) {
02255 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02256 }
02257 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02258 }
02259 }
02260 }
02261 }
02262
02263 static bool CheckTrainStayInDepot(Train *v)
02264 {
02265
02266 for (const Train *u = v; u != NULL; u = u->Next()) {
02267 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02268 }
02269
02270
02271 if (v->tcache.cached_power == 0) {
02272 v->vehstatus |= VS_STOPPED;
02273 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02274 return true;
02275 }
02276
02277 SigSegState seg_state;
02278
02279 if (v->force_proceed == 0) {
02280
02281 if (++v->wait_counter < 37) {
02282 SetWindowClassesDirty(WC_TRAINS_LIST);
02283 return true;
02284 }
02285
02286 v->wait_counter = 0;
02287
02288 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02289 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02290
02291 SetWindowClassesDirty(WC_TRAINS_LIST);
02292 return true;
02293 }
02294 } else {
02295 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02296 }
02297
02298
02299 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02300
02301 if (HasDepotReservation(v->tile)) return true;
02302 SetDepotReservation(v->tile, true);
02303 VehicleEnterDepot(v);
02304 return true;
02305 }
02306
02307
02308 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == 0) {
02309
02310 SetWindowClassesDirty(WC_TRAINS_LIST);
02311 MarkTrainAsStuck(v);
02312 return true;
02313 }
02314
02315 SetDepotReservation(v->tile, true);
02316 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02317
02318 VehicleServiceInDepot(v);
02319 SetWindowClassesDirty(WC_TRAINS_LIST);
02320 v->PlayLeaveStationSound();
02321
02322 v->track = TRACK_BIT_X;
02323 if (v->direction & 2) v->track = TRACK_BIT_Y;
02324
02325 v->vehstatus &= ~VS_HIDDEN;
02326 v->cur_speed = 0;
02327
02328 v->UpdateDeltaXY(v->direction);
02329 v->cur_image = v->GetImage(v->direction);
02330 VehicleMove(v, false);
02331 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02332 v->UpdateAcceleration();
02333 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02334
02335 return false;
02336 }
02337
02339 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02340 {
02341 DiagDirection dir = TrackdirToExitdir(track_dir);
02342
02343 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02344
02345 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02346 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02347
02348 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02349
02350 SetTunnelBridgeReservation(tile, false);
02351 SetTunnelBridgeReservation(end, false);
02352
02353 if (_settings_client.gui.show_track_reservation) {
02354 MarkTileDirtyByTile(tile);
02355 MarkTileDirtyByTile(end);
02356 }
02357 }
02358 }
02359 } else if (IsRailStationTile(tile)) {
02360 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02361
02362
02363 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02364 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02365 }
02366 } else {
02367
02368 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02369 }
02370 }
02371
02373 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02374 {
02375 assert(v->IsFrontEngine());
02376
02377 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02378 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02379 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02380 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02381
02382
02383 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02384
02385 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02386 while (ft.Follow(tile, td)) {
02387 tile = ft.m_new_tile;
02388 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02389 td = RemoveFirstTrackdir(&bits);
02390 assert(bits == TRACKDIR_BIT_NONE);
02391
02392 if (!IsValidTrackdir(td)) break;
02393
02394 if (IsTileType(tile, MP_RAILWAY)) {
02395 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02396
02397 UnreserveRailTrack(tile, TrackdirToTrack(td));
02398 break;
02399 }
02400 if (HasPbsSignalOnTrackdir(tile, td)) {
02401 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02402
02403 break;
02404 } else {
02405
02406 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02407 MarkTileDirtyByTile(tile);
02408 }
02409 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02410 break;
02411 }
02412 }
02413
02414
02415 if (free_tile || (!(ft.m_is_station && GetStationIndex(ft.m_new_tile) == station_id) && !ft.m_is_tunnel && !ft.m_is_bridge)) ClearPathReservation(v, tile, td);
02416
02417 free_tile = true;
02418 }
02419 }
02420
02421 static const byte _initial_tile_subcoord[6][4][3] = {
02422 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02423 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02424 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02425 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02426 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02427 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02428 };
02429
02442 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02443 {
02444 switch (_settings_game.pf.pathfinder_for_trains) {
02445 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02446 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02447
02448 default: NOT_REACHED();
02449 }
02450 }
02451
02457 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02458 {
02459 PBSTileInfo origin = FollowTrainReservation(v);
02460
02461 CFollowTrackRail ft(v);
02462
02463 TileIndex tile = origin.tile;
02464 Trackdir cur_td = origin.trackdir;
02465 while (ft.Follow(tile, cur_td)) {
02466 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02467
02468 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02469 }
02470
02471 if (_settings_game.pf.forbid_90_deg) {
02472 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02473 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02474 }
02475
02476
02477 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02478 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02479
02480
02481
02482
02483
02484
02485 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02486
02487
02488
02489 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02490
02491
02492 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02493 if (enterdir) *enterdir = ft.m_exitdir;
02494 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02495 }
02496
02497 tile = ft.m_new_tile;
02498 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02499
02500 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02501 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02502 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02503
02504 return PBSTileInfo(tile, cur_td, true);
02505 }
02506
02507 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02508 }
02509
02510 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02511
02512 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02513 }
02514
02515
02516 tile = origin.tile;
02517 cur_td = origin.trackdir;
02518 TileIndex stopped = ft.m_old_tile;
02519 Trackdir stopped_td = ft.m_old_td;
02520 while (tile != stopped || cur_td != stopped_td) {
02521 if (!ft.Follow(tile, cur_td)) break;
02522
02523 if (_settings_game.pf.forbid_90_deg) {
02524 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02525 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02526 }
02527 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02528
02529 tile = ft.m_new_tile;
02530 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02531
02532 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02533 }
02534
02535
02536 return PBSTileInfo();
02537 }
02538
02549 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02550 {
02551 switch (_settings_game.pf.pathfinder_for_trains) {
02552 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02553 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02554
02555 default: NOT_REACHED();
02556 }
02557 }
02558
02560 class VehicleOrderSaver
02561 {
02562 private:
02563 Vehicle *v;
02564 Order old_order;
02565 TileIndex old_dest_tile;
02566 StationID old_last_station_visited;
02567 VehicleOrderID index;
02568
02569 public:
02570 VehicleOrderSaver(Vehicle *_v) :
02571 v(_v),
02572 old_order(_v->current_order),
02573 old_dest_tile(_v->dest_tile),
02574 old_last_station_visited(_v->last_station_visited),
02575 index(_v->cur_order_index)
02576 {
02577 }
02578
02579 ~VehicleOrderSaver()
02580 {
02581 this->v->current_order = this->old_order;
02582 this->v->dest_tile = this->old_dest_tile;
02583 this->v->last_station_visited = this->old_last_station_visited;
02584 }
02585
02591 bool SwitchToNextOrder(bool skip_first)
02592 {
02593 if (this->v->GetNumOrders() == 0) return false;
02594
02595 if (skip_first) ++this->index;
02596
02597 int conditional_depth = 0;
02598
02599 do {
02600
02601 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02602
02603 Order *order = this->v->GetOrder(this->index);
02604 assert(order != NULL);
02605
02606 switch (order->GetType()) {
02607 case OT_GOTO_DEPOT:
02608
02609 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02610 case OT_GOTO_STATION:
02611 case OT_GOTO_WAYPOINT:
02612 this->v->current_order = *order;
02613 UpdateOrderDest(this->v, order);
02614 return true;
02615 case OT_CONDITIONAL: {
02616 if (conditional_depth > this->v->GetNumOrders()) return false;
02617 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02618 if (next != INVALID_VEH_ORDER_ID) {
02619 conditional_depth++;
02620 this->index = next;
02621
02622 continue;
02623 }
02624 break;
02625 }
02626 default:
02627 break;
02628 }
02629
02630
02631 ++this->index;
02632 } while (this->index != this->v->cur_order_index);
02633
02634 return false;
02635 }
02636 };
02637
02638
02639 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02640 {
02641 Track best_track = INVALID_TRACK;
02642 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02643 bool changed_signal = false;
02644
02645 assert((tracks & ~TRACK_BIT_MASK) == 0);
02646
02647 if (got_reservation != NULL) *got_reservation = false;
02648
02649
02650 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02651
02652 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02653
02654
02655 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02656 Track track = FindFirstTrack(tracks);
02657
02658 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02659 do_track_reservation = true;
02660 changed_signal = true;
02661 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02662 } else if (!do_track_reservation) {
02663 return track;
02664 }
02665 best_track = track;
02666 }
02667
02668 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02669 DiagDirection dest_enterdir = enterdir;
02670 if (do_track_reservation) {
02671
02672
02673
02674 CheckIfTrainNeedsService(v);
02675 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02676
02677 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02678 if (res_dest.tile == INVALID_TILE) {
02679
02680 if (mark_stuck) MarkTrainAsStuck(v);
02681 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02682 return FindFirstTrack(tracks);
02683 }
02684 }
02685
02686
02687 VehicleOrderSaver orders(v);
02688
02689
02690
02691
02692
02693
02694
02695 if (v->current_order.IsType(OT_LEAVESTATION)) {
02696 orders.SwitchToNextOrder(false);
02697 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02698 v->current_order.IsType(OT_GOTO_STATION) ?
02699 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02700 v->tile == v->dest_tile))) {
02701 orders.SwitchToNextOrder(true);
02702 }
02703
02704 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02705
02706 bool path_not_found = false;
02707 TileIndex new_tile = res_dest.tile;
02708
02709 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02710 if (new_tile == tile) best_track = next_track;
02711
02712
02713 if (path_not_found) {
02714
02715 if (!HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02716
02717 SetBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02718
02719 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02720 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02721 SetDParam(0, v->index);
02722 AddVehicleNewsItem(
02723 STR_NEWS_TRAIN_IS_LOST,
02724 NS_ADVICE,
02725 v->index
02726 );
02727 }
02728 }
02729 } else {
02730
02731 if (HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02732
02733 ClrBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02734
02735 }
02736 }
02737 }
02738
02739
02740 if (!do_track_reservation) return best_track;
02741
02742
02743 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02744 if (mark_stuck) MarkTrainAsStuck(v);
02745 FreeTrainTrackReservation(v);
02746 return best_track;
02747 }
02748
02749
02750 if (res_dest.tile == INVALID_TILE) {
02751
02752 PBSTileInfo origin = FollowTrainReservation(v);
02753 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02754 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02755 best_track = FindFirstTrack(res);
02756 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02757 if (got_reservation != NULL) *got_reservation = true;
02758 if (changed_signal) MarkTileDirtyByTile(tile);
02759 } else {
02760 FreeTrainTrackReservation(v);
02761 if (mark_stuck) MarkTrainAsStuck(v);
02762 }
02763 return best_track;
02764 }
02765
02766 if (got_reservation != NULL) *got_reservation = true;
02767
02768
02769 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02770
02771 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02772 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02773 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02774 if (_settings_game.pf.forbid_90_deg) {
02775 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02776 }
02777
02778
02779 if (orders.SwitchToNextOrder(true)) {
02780 PBSTileInfo cur_dest;
02781 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
02782 if (cur_dest.tile != INVALID_TILE) {
02783 res_dest = cur_dest;
02784 if (res_dest.okay) continue;
02785
02786 FreeTrainTrackReservation(v);
02787 if (mark_stuck) MarkTrainAsStuck(v);
02788 if (got_reservation != NULL) *got_reservation = false;
02789 changed_signal = false;
02790 break;
02791 }
02792 }
02793
02794 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02795 FreeTrainTrackReservation(v);
02796 if (mark_stuck) MarkTrainAsStuck(v);
02797 if (got_reservation != NULL) *got_reservation = false;
02798 changed_signal = false;
02799 }
02800 break;
02801 }
02802
02803 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02804
02805 if (changed_signal) MarkTileDirtyByTile(tile);
02806
02807 return best_track;
02808 }
02809
02818 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02819 {
02820 assert(v->IsFrontEngine());
02821
02822
02823
02824
02825 if (v->track == TRACK_BIT_DEPOT) {
02826 if (HasDepotReservation(v->tile)) {
02827 if (mark_as_stuck) MarkTrainAsStuck(v);
02828 return false;
02829 } else {
02830
02831 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02832 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02833 }
02834 }
02835
02836 Vehicle *other_train = NULL;
02837 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02838
02839
02840
02841
02842
02843 if (other_train != NULL && other_train->index != v->index) {
02844 if (mark_as_stuck) MarkTrainAsStuck(v);
02845 return false;
02846 }
02847
02848 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02849
02850 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02851 ClrBit(v->flags, VRF_TRAIN_STUCK);
02852 return true;
02853 }
02854
02855
02856 if (v->track == TRACK_BIT_DEPOT) {
02857 SetDepotReservation(v->tile, true);
02858 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02859 }
02860
02861 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02862 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02863 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02864
02865 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02866
02867 bool res_made = false;
02868 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02869
02870 if (!res_made) {
02871
02872 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02873 return false;
02874 }
02875
02876 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02877 v->wait_counter = 0;
02878 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02879 }
02880 ClrBit(v->flags, VRF_TRAIN_STUCK);
02881 return true;
02882 }
02883
02884
02885 static bool CheckReverseTrain(const Train *v)
02886 {
02887 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02888 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02889 !(v->direction & 1)) {
02890 return false;
02891 }
02892
02893 assert(v->track != TRACK_BIT_NONE);
02894
02895 switch (_settings_game.pf.pathfinder_for_trains) {
02896 case VPF_NPF: return NPFTrainCheckReverse(v);
02897 case VPF_YAPF: return YapfTrainCheckReverse(v);
02898
02899 default: NOT_REACHED();
02900 }
02901 }
02902
02903 TileIndex Train::GetOrderStationLocation(StationID station)
02904 {
02905 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02906
02907 const Station *st = Station::Get(station);
02908 if (!(st->facilities & FACIL_TRAIN)) {
02909
02910 this->IncrementOrderIndex();
02911 return 0;
02912 }
02913
02914 return st->xy;
02915 }
02916
02917 void Train::MarkDirty()
02918 {
02919 Vehicle *v = this;
02920 do {
02921 v->UpdateViewport(false, false);
02922 } while ((v = v->Next()) != NULL);
02923
02924
02925 this->CargoChanged();
02926 this->UpdateAcceleration();
02927 }
02928
02938 int Train::UpdateSpeed()
02939 {
02940 uint accel;
02941
02942 switch (_settings_game.vehicle.train_acceleration_model) {
02943 default: NOT_REACHED();
02944 case AM_ORIGINAL:
02945 accel = this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2);
02946 break;
02947 case AM_REALISTIC:
02948 this->max_speed = this->GetCurrentMaxSpeed();
02949 accel = this->GetAcceleration();
02950 break;
02951 }
02952
02953 uint spd = this->subspeed + accel;
02954 this->subspeed = (byte)spd;
02955 {
02956 int tempmax = this->max_speed;
02957 if (this->cur_speed > this->max_speed)
02958 tempmax = this->cur_speed - (this->cur_speed / 10) - 1;
02959 this->cur_speed = spd = Clamp(this->cur_speed + ((int)spd >> 8), 0, tempmax);
02960 }
02961
02962
02963
02964
02965
02966
02967
02968
02969
02970
02971
02972
02973 int scaled_spd = spd * 3 >> 2;
02974
02975 scaled_spd += this->progress;
02976 this->progress = 0;
02977 return scaled_spd;
02978 }
02979
02980 static void TrainEnterStation(Train *v, StationID station)
02981 {
02982 v->last_station_visited = station;
02983
02984
02985 Station *st = Station::Get(station);
02986 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02987 st->had_vehicle_of_type |= HVOT_TRAIN;
02988 SetDParam(0, st->index);
02989 AddVehicleNewsItem(
02990 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02991 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
02992 v->index,
02993 st->index
02994 );
02995 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
02996 }
02997
02998 v->force_proceed = 0;
02999 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03000
03001 v->BeginLoading();
03002
03003 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03004 }
03005
03006 static byte AfterSetTrainPos(Train *v, bool new_tile)
03007 {
03008 byte old_z = v->z_pos;
03009 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03010
03011 if (new_tile) {
03012 ClrBit(v->flags, VRF_GOINGUP);
03013 ClrBit(v->flags, VRF_GOINGDOWN);
03014
03015 if (v->track == TRACK_BIT_X || v->track == TRACK_BIT_Y) {
03016
03017
03018
03019
03020
03021 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03022 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03023
03024 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03025
03026 if (middle_z != v->z_pos) {
03027 SetBit(v->flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03028 }
03029 }
03030 }
03031
03032 VehicleMove(v, true);
03033 return old_z;
03034 }
03035
03036
03037 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
03038 {
03039 return
03040 IsTileOwner(tile, v->owner) && (
03041 !v->IsFrontEngine() ||
03042 HasBit(v->compatible_railtypes, GetRailType(tile))
03043 );
03044 }
03045
03046 struct RailtypeSlowdownParams {
03047 byte small_turn, large_turn;
03048 byte z_up;
03049 byte z_down;
03050 };
03051
03052 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03053
03054 {256 / 4, 256 / 2, 256 / 4, 2},
03055 {256 / 4, 256 / 2, 256 / 4, 2},
03056 {256 / 4, 256 / 2, 256 / 4, 2},
03057 {0, 256 / 2, 256 / 4, 2},
03058 };
03059
03061 static inline void AffectSpeedByZChange(Train *v, byte old_z)
03062 {
03063 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
03064
03065 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03066
03067 if (old_z < v->z_pos) {
03068 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03069 } else {
03070 uint16 spd = v->cur_speed + rsp->z_down;
03071 if (spd <= v->max_speed) v->cur_speed = spd;
03072 }
03073 }
03074
03075 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03076 {
03077 if (IsTileType(tile, MP_RAILWAY) &&
03078 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03079 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03080 Trackdir trackdir = FindFirstTrackdir(tracks);
03081 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03082
03083 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03084 }
03085 }
03086 return false;
03087 }
03088
03092 void Train::ReserveTrackUnderConsist() const
03093 {
03094 for (const Train *u = this; u != NULL; u = u->Next()) {
03095 switch (u->track) {
03096 case TRACK_BIT_WORMHOLE:
03097 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
03098 break;
03099 case TRACK_BIT_DEPOT:
03100 break;
03101 default:
03102 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
03103 break;
03104 }
03105 }
03106 }
03107
03108 uint Train::Crash(bool flooded)
03109 {
03110 uint pass = 0;
03111 if (this->IsFrontEngine()) {
03112 pass += 4;
03113
03114
03115
03116 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
03117 for (const Train *v = this; v != NULL; v = v->Next()) {
03118 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03119 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
03120
03121
03122 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
03123 }
03124 }
03125
03126
03127
03128 TileIndex crossing = TrainApproachingCrossingTile(this);
03129 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03130
03131
03132 HideFillingPercent(&this->fill_percent_te_id);
03133 }
03134
03135 pass += Vehicle::Crash(flooded);
03136
03137 this->crash_anim_pos = flooded ? 4000 : 1;
03138 return pass;
03139 }
03140
03147 static uint TrainCrashed(Train *v)
03148 {
03149 uint num = 0;
03150
03151
03152 if (!(v->vehstatus & VS_CRASHED)) {
03153 num = v->Crash();
03154 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03155 }
03156
03157
03158
03159 v->ReserveTrackUnderConsist();
03160
03161 return num;
03162 }
03163
03164 struct TrainCollideChecker {
03165 Train *v;
03166 uint num;
03167 };
03168
03169 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03170 {
03171 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03172
03173
03174 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
03175
03176
03177 if (v->owner != tcc->v->owner) return NULL;
03178
03179
03180 Train *coll = Train::From(v)->First();
03181
03182
03183 if (coll == tcc->v) return NULL;
03184
03185 int x_diff = v->x_pos - tcc->v->x_pos;
03186 int y_diff = v->y_pos - tcc->v->y_pos;
03187
03188
03189
03190
03191
03192 uint hash = (y_diff + 7) | (x_diff + 7);
03193 if (hash & ~15) return NULL;
03194
03195
03196 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03197
03198
03199 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
03200
03201
03202 tcc->num += TrainCrashed(tcc->v);
03203 tcc->num += TrainCrashed(coll);
03204
03205 return NULL;
03206 }
03207
03214 static bool CheckTrainCollision(Train *v)
03215 {
03216
03217 if (v->track == TRACK_BIT_DEPOT) return false;
03218
03219 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03220
03221 TrainCollideChecker tcc;
03222 tcc.v = v;
03223 tcc.num = 0;
03224
03225
03226 if (v->track == TRACK_BIT_WORMHOLE) {
03227 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03228 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03229 } else {
03230 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03231 }
03232
03233
03234 if (tcc.num == 0) return false;
03235
03236 SetDParam(0, tcc.num);
03237 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
03238 NS_ACCIDENT,
03239 v->index
03240 );
03241
03242 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03243 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03244 return true;
03245 }
03246
03247 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03248 {
03249 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03250
03251 Train *t = Train::From(v);
03252 DiagDirection exitdir = *(DiagDirection *)data;
03253
03254
03255 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03256
03257 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03258
03259 return t;
03260 }
03261
03262 static void TrainController(Train *v, Vehicle *nomove)
03263 {
03264 Train *first = v->First();
03265 Train *prev;
03266 bool direction_changed = false;
03267
03268
03269 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03270 DiagDirection enterdir = DIAGDIR_BEGIN;
03271 bool update_signals_crossing = false;
03272
03273 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03274 if (v->track != TRACK_BIT_WORMHOLE) {
03275
03276 if (gp.old_tile == gp.new_tile) {
03277
03278 if (v->track == TRACK_BIT_DEPOT) {
03279
03280 gp.x = v->x_pos;
03281 gp.y = v->y_pos;
03282 } else {
03283
03284
03285
03286 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v)) return;
03287
03288 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03289 if (HasBit(r, VETS_CANNOT_ENTER)) {
03290 goto invalid_rail;
03291 }
03292 if (HasBit(r, VETS_ENTERED_STATION)) {
03293
03294 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03295 }
03296 }
03297 } else {
03298
03299
03300
03301 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03302 assert(IsValidDiagDirection(enterdir));
03303
03304
03305
03306 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03307 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03308
03309 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03310 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03311
03312 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03313 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03314
03315
03316 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03317 }
03318
03319 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03320
03321
03322
03323 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03324
03325 TrackBits chosen_track;
03326 if (prev == NULL) {
03327
03328
03329 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03330 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03331
03332 if (v->force_proceed != 0 && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03333
03334
03335
03336
03337 Trackdir dir = FindFirstTrackdir(trackdirbits);
03338 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03339 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03340
03341
03342 v->force_proceed--;
03343 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03344 }
03345 }
03346
03347
03348 if ((red_signals & chosen_track) && v->force_proceed == 0) {
03349
03350 Trackdir i = FindFirstTrackdir(trackdirbits);
03351
03352
03353 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return;
03354
03355 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03356 v->cur_speed = 0;
03357 v->subspeed = 0;
03358 v->progress = 255 - 100;
03359 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return;
03360 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03361 v->cur_speed = 0;
03362 v->subspeed = 0;
03363 v->progress = 255 - 10;
03364 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03365 DiagDirection exitdir = TrackdirToExitdir(i);
03366 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03367
03368 exitdir = ReverseDiagDir(exitdir);
03369
03370
03371 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return;
03372 }
03373 }
03374
03375
03376
03377
03378
03379 if (_settings_game.pf.wait_for_pbs_path == 255 && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03380 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03381 v->wait_counter = 0;
03382 return;
03383 }
03384 goto reverse_train_direction;
03385 } else {
03386 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03387 }
03388 } else {
03389
03390 if (prev->tile == gp.new_tile) {
03391
03392 if (prev->track == TRACK_BIT_WORMHOLE) {
03393
03394
03395 assert(IsTunnel(prev->tile));
03396 chosen_track = bits;
03397 } else {
03398 chosen_track = prev->track;
03399 }
03400 } else {
03401
03402
03403
03404
03405
03406
03407
03408 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03409 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03410 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03411 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03412 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03413 };
03414 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03415 assert(IsValidDiagDirection(exitdir));
03416 chosen_track = _connecting_track[enterdir][exitdir];
03417 }
03418 chosen_track &= bits;
03419 }
03420
03421
03422 assert(
03423 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03424 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03425 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03426
03427
03428 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03429 gp.x = (gp.x & ~0xF) | b[0];
03430 gp.y = (gp.y & ~0xF) | b[1];
03431 Direction chosen_dir = (Direction)b[2];
03432
03433
03434 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03435 if (HasBit(r, VETS_CANNOT_ENTER)) {
03436 goto invalid_rail;
03437 }
03438
03439 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03440 Track track = FindFirstTrack(chosen_track);
03441 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03442 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03443 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03444 MarkTileDirtyByTile(gp.new_tile);
03445 }
03446
03447
03448 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03449
03450 v->tile = gp.new_tile;
03451
03452 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03453 v->First()->PowerChanged();
03454 v->First()->UpdateAcceleration();
03455 }
03456
03457 v->track = chosen_track;
03458 assert(v->track);
03459 }
03460
03461
03462
03463 update_signals_crossing = true;
03464
03465 if (chosen_dir != v->direction) {
03466 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03467 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03468 DirDiff diff = DirDifference(v->direction, chosen_dir);
03469 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03470 }
03471 direction_changed = true;
03472 v->direction = chosen_dir;
03473 }
03474
03475 if (v->IsFrontEngine()) {
03476 v->wait_counter = 0;
03477
03478
03479 TileIndex crossing = TrainApproachingCrossingTile(v);
03480 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03481
03482
03483 CheckNextTrainTile(v);
03484 }
03485
03486 if (HasBit(r, VETS_ENTERED_STATION)) {
03487
03488 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03489 }
03490 }
03491 } else {
03492
03493
03494
03495 if (!(v->vehstatus & VS_HIDDEN)) {
03496 v->cur_speed =
03497 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03498 }
03499
03500 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03501
03502 if (v->IsFrontEngine()) {
03503 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03504 CheckNextTrainTile(v);
03505 }
03506 } else {
03507 v->x_pos = gp.x;
03508 v->y_pos = gp.y;
03509 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03510 continue;
03511 }
03512 }
03513
03514
03515 v->UpdateDeltaXY(v->direction);
03516
03517 v->x_pos = gp.x;
03518 v->y_pos = gp.y;
03519
03520
03521 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03522
03523 if (prev == NULL) {
03524
03525 AffectSpeedByZChange(v, old_z);
03526 }
03527
03528 if (update_signals_crossing) {
03529 if (v->IsFrontEngine()) {
03530 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03531
03532
03533
03534
03535
03536
03537
03538
03539 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03540 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03541 !TryPathReserve(v)) {
03542 MarkTrainAsStuck(v);
03543 }
03544 }
03545 }
03546
03547
03548
03549 if (v->Next() == NULL) {
03550 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03551 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03552 }
03553 }
03554
03555
03556 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03557 }
03558
03559 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03560
03561 return;
03562
03563 invalid_rail:
03564
03565 if (prev != NULL) error("Disconnecting train");
03566
03567 reverse_train_direction:
03568 v->wait_counter = 0;
03569 v->cur_speed = 0;
03570 v->subspeed = 0;
03571 ReverseTrainDirection(v);
03572 }
03573
03579 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03580 {
03581 TrackBits *trackbits = (TrackBits *)data;
03582
03583 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03584 if (Train::From(v)->track == TRACK_BIT_WORMHOLE) {
03585
03586 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03587 } else {
03588 *trackbits |= Train::From(v)->track;
03589 }
03590 }
03591
03592 return NULL;
03593 }
03594
03602 static void DeleteLastWagon(Train *v)
03603 {
03604 Train *first = v->First();
03605
03606
03607
03608
03609 Train *u = v;
03610 for (; v->Next() != NULL; v = v->Next()) u = v;
03611 u->SetNext(NULL);
03612
03613 if (first != v) {
03614
03615 first->ConsistChanged(false);
03616
03617
03618 if (first->track == TRACK_BIT_DEPOT) {
03619 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03620 }
03621 }
03622
03623
03624 TrackBits trackbits = v->track;
03625 TileIndex tile = v->tile;
03626 Owner owner = v->owner;
03627
03628 delete v;
03629 v = NULL;
03630
03631 if (trackbits == TRACK_BIT_WORMHOLE) {
03632
03633 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03634 }
03635
03636 Track track = TrackBitsToTrack(trackbits);
03637 if (HasReservedTracks(tile, trackbits)) {
03638 UnreserveRailTrack(tile, track);
03639
03640
03641 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03642 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03643
03644
03645 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03646 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03647 if (HasBit(remaining_trackbits, t)) {
03648 TryReserveRailTrack(tile, t);
03649 }
03650 }
03651 }
03652
03653
03654 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03655
03656
03657 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03658 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03659 } else {
03660 SetSignalsOnBothDir(tile, track, owner);
03661 }
03662 }
03663
03664 static void ChangeTrainDirRandomly(Train *v)
03665 {
03666 static const DirDiff delta[] = {
03667 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03668 };
03669
03670 do {
03671
03672 if (!(v->vehstatus & VS_HIDDEN)) {
03673 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03674 v->UpdateDeltaXY(v->direction);
03675 v->cur_image = v->GetImage(v->direction);
03676
03677
03678
03679 if (v->track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
03680 }
03681 } while ((v = v->Next()) != NULL);
03682 }
03683
03684 static bool HandleCrashedTrain(Train *v)
03685 {
03686 int state = ++v->crash_anim_pos;
03687
03688 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03689 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03690 }
03691
03692 uint32 r;
03693 if (state <= 200 && Chance16R(1, 7, r)) {
03694 int index = (r * 10 >> 16);
03695
03696 Vehicle *u = v;
03697 do {
03698 if (--index < 0) {
03699 r = Random();
03700
03701 CreateEffectVehicleRel(u,
03702 GB(r, 8, 3) + 2,
03703 GB(r, 16, 3) + 2,
03704 GB(r, 0, 3) + 5,
03705 EV_EXPLOSION_SMALL);
03706 break;
03707 }
03708 } while ((u = u->Next()) != NULL);
03709 }
03710
03711 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03712
03713 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03714 bool ret = v->Next() != NULL;
03715 DeleteLastWagon(v);
03716 return ret;
03717 }
03718
03719 return true;
03720 }
03721
03722 static void HandleBrokenTrain(Train *v)
03723 {
03724 if (v->breakdown_ctr != 1) {
03725 v->breakdown_ctr = 1;
03726 v->cur_speed = 0;
03727
03728 if (v->breakdowns_since_last_service != 255)
03729 v->breakdowns_since_last_service++;
03730
03731 v->MarkDirty();
03732 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03733 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
03734
03735 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
03736 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
03737 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
03738 }
03739
03740 if (!(v->vehstatus & VS_HIDDEN)) {
03741 EffectVehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
03742 if (u != NULL) u->animation_state = v->breakdown_delay * 2;
03743 }
03744 }
03745
03746 if (!(v->tick_counter & 3)) {
03747 if (!--v->breakdown_delay) {
03748 v->breakdown_ctr = 0;
03749 v->MarkDirty();
03750 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03751 }
03752 }
03753 }
03754
03756 static const uint16 _breakdown_speeds[16] = {
03757 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03758 };
03759
03760
03768 static bool TrainApproachingLineEnd(Train *v, bool signal)
03769 {
03770
03771 uint x = v->x_pos & 0xF;
03772 uint y = v->y_pos & 0xF;
03773
03774
03775
03776 switch (v->direction) {
03777 case DIR_N : x = ~x + ~y + 25; break;
03778 case DIR_NW: x = y;
03779 case DIR_NE: x = ~x + 16; break;
03780 case DIR_E : x = ~x + y + 9; break;
03781 case DIR_SE: x = y; break;
03782 case DIR_S : x = x + y - 7; break;
03783 case DIR_W : x = ~y + x + 9; break;
03784 default: break;
03785 }
03786
03787
03788 if (!signal && x + (v->tcache.cached_veh_length + 1) / 2 >= TILE_SIZE) {
03789
03790 v->cur_speed = 0;
03791 ReverseTrainDirection(v);
03792 return false;
03793 }
03794
03795
03796 v->vehstatus |= VS_TRAIN_SLOWING;
03797 uint16 break_speed = _breakdown_speeds[x & 0xF];
03798 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03799
03800 return true;
03801 }
03802
03803
03809 static bool TrainCanLeaveTile(const Train *v)
03810 {
03811
03812 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03813
03814 TileIndex tile = v->tile;
03815
03816
03817 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03818 DiagDirection dir = GetTunnelBridgeDirection(tile);
03819 if (DiagDirToDir(dir) == v->direction) return false;
03820 }
03821
03822
03823 if (IsRailDepotTile(tile)) {
03824 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03825 if (DiagDirToDir(dir) == v->direction) return false;
03826 }
03827
03828 return true;
03829 }
03830
03831
03839 static TileIndex TrainApproachingCrossingTile(const Train *v)
03840 {
03841 assert(v->IsFrontEngine());
03842 assert(!(v->vehstatus & VS_CRASHED));
03843
03844 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03845
03846 DiagDirection dir = TrainExitDir(v->direction, v->track);
03847 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03848
03849
03850 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03851 !CheckCompatibleRail(v, tile)) {
03852 return INVALID_TILE;
03853 }
03854
03855 return tile;
03856 }
03857
03858
03865 static bool TrainCheckIfLineEnds(Train *v)
03866 {
03867
03868
03869 int t = v->breakdown_ctr;
03870 if (t > 1) {
03871 v->vehstatus |= VS_TRAIN_SLOWING;
03872
03873 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03874 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03875 } else {
03876 v->vehstatus &= ~VS_TRAIN_SLOWING;
03877 }
03878
03879 if (!TrainCanLeaveTile(v)) return true;
03880
03881
03882 DiagDirection dir = TrainExitDir(v->direction, v->track);
03883
03884 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03885
03886
03887 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03888 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03889
03890 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03891 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03892
03893
03894
03895
03896 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03897 if (_settings_game.pf.forbid_90_deg) {
03898 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03899 }
03900
03901
03902 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03903 return TrainApproachingLineEnd(v, false);
03904 }
03905
03906
03907 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
03908
03909
03910 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03911
03912 return true;
03913 }
03914
03915
03916 static bool TrainLocoHandler(Train *v, bool mode)
03917 {
03918
03919 if (v->vehstatus & VS_CRASHED) {
03920 return mode ? true : HandleCrashedTrain(v);
03921 }
03922
03923 if (v->force_proceed != 0) {
03924 ClrBit(v->flags, VRF_TRAIN_STUCK);
03925 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03926 }
03927
03928
03929 if (v->breakdown_ctr != 0) {
03930 if (v->breakdown_ctr <= 2) {
03931 HandleBrokenTrain(v);
03932 return true;
03933 }
03934 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
03935 }
03936
03937 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03938 ReverseTrainDirection(v);
03939 }
03940
03941
03942 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03943
03944 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03945 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03946 v->wait_counter = 0;
03947 v->cur_speed = 0;
03948 v->subspeed = 0;
03949 ReverseTrainDirection(v);
03950 return true;
03951 }
03952
03953 v->HandleLoading(mode);
03954
03955 if (v->current_order.IsType(OT_LOADING)) return true;
03956
03957 if (CheckTrainStayInDepot(v)) return true;
03958
03959 if (!mode) HandleLocomotiveSmokeCloud(v);
03960
03961
03962 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03963 CheckNextTrainTile(v);
03964 }
03965
03966
03967 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03968 ++v->wait_counter;
03969
03970
03971 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.wait_for_pbs_path < 255;
03972
03973 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == 0) return true;
03974 if (!TryPathReserve(v)) {
03975
03976 if (turn_around) ReverseTrainDirection(v);
03977
03978 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03979
03980 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
03981 SetDParam(0, v->index);
03982 AddVehicleNewsItem(
03983 STR_NEWS_TRAIN_IS_STUCK,
03984 NS_ADVICE,
03985 v->index
03986 );
03987 }
03988 v->wait_counter = 0;
03989 }
03990
03991 if (v->force_proceed == 0) return true;
03992 ClrBit(v->flags, VRF_TRAIN_STUCK);
03993 v->wait_counter = 0;
03994 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03995 }
03996 }
03997
03998 if (v->current_order.IsType(OT_LEAVESTATION)) {
03999 v->current_order.Free();
04000 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04001 return true;
04002 }
04003
04004 int j = v->UpdateSpeed();
04005
04006
04007 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
04008
04009 v->force_proceed = 0;
04010 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
04011 }
04012
04013 int adv_spd = (v->direction & 1) ? 192 : 256;
04014 if (j < adv_spd) {
04015
04016 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04017 } else {
04018 TrainCheckIfLineEnds(v);
04019
04020 for (;;) {
04021 j -= adv_spd;
04022 TrainController(v, NULL);
04023
04024 if (CheckTrainCollision(v)) break;
04025
04026 adv_spd = (v->direction & 1) ? 192 : 256;
04027
04028
04029 if (j < adv_spd || v->cur_speed == 0) break;
04030
04031 OrderType order_type = v->current_order.GetType();
04032
04033 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
04034 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
04035 IsTileType(v->tile, MP_STATION) &&
04036 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
04037 ProcessOrders(v);
04038 }
04039 }
04040 SetLastSpeed(v, v->cur_speed);
04041 }
04042
04043 for (Train *u = v; u != NULL; u = u->Next()) {
04044 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04045
04046 u->UpdateViewport(false, false);
04047 }
04048
04049 if (v->progress == 0) v->progress = j;
04050
04051 return true;
04052 }
04053
04054
04055
04056 Money Train::GetRunningCost() const
04057 {
04058 Money cost = 0;
04059 const Train *v = this;
04060
04061 do {
04062 const Engine *e = Engine::Get(v->engine_type);
04063 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
04064
04065 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
04066 if (cost_factor == 0) continue;
04067
04068
04069 if (v->IsMultiheaded()) cost_factor /= 2;
04070
04071 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->grffile);
04072 } while ((v = v->GetNextVehicle()) != NULL);
04073
04074 return cost;
04075 }
04076
04077
04078 bool Train::Tick()
04079 {
04080 this->tick_counter++;
04081
04082 if (this->IsFrontEngine()) {
04083 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
04084
04085 this->current_order_time++;
04086
04087 if (!TrainLocoHandler(this, false)) return false;
04088
04089 return TrainLocoHandler(this, true);
04090 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
04091
04092 if (++this->crash_anim_pos >= 4400) {
04093 delete this;
04094 return false;
04095 }
04096 }
04097
04098 return true;
04099 }
04100
04101 static void CheckIfTrainNeedsService(Train *v)
04102 {
04103 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04104 if (v->IsInDepot()) {
04105 VehicleServiceInDepot(v);
04106 return;
04107 }
04108
04109 uint max_penalty;
04110 switch (_settings_game.pf.pathfinder_for_trains) {
04111 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
04112 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
04113 default: NOT_REACHED();
04114 }
04115
04116 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
04117
04118 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
04119 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04120
04121
04122
04123 v->current_order.MakeDummy();
04124 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04125 }
04126 return;
04127 }
04128
04129 DepotID depot = GetDepotIndex(tfdd.tile);
04130
04131 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04132 v->current_order.GetDestination() != depot &&
04133 !Chance16(3, 16)) {
04134 return;
04135 }
04136
04137 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
04138 v->dest_tile = tfdd.tile;
04139 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04140 }
04141
04142 void Train::OnNewDay()
04143 {
04144 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04145
04146 if (this->IsFrontEngine()) {
04147 CheckVehicleBreakdown(this);
04148 AgeVehicle(this);
04149
04150 CheckIfTrainNeedsService(this);
04151
04152 CheckOrders(this);
04153
04154
04155 if (this->current_order.IsType(OT_GOTO_STATION)) {
04156 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
04157 if (tile != INVALID_TILE) this->dest_tile = tile;
04158 }
04159
04160 if (this->running_ticks != 0) {
04161
04162 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04163
04164 this->profit_this_year -= cost.GetCost();
04165 this->running_ticks = 0;
04166
04167 SubtractMoneyFromCompanyFract(this->owner, cost);
04168
04169 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
04170 SetWindowClassesDirty(WC_TRAINS_LIST);
04171 }
04172 } else if (this->IsEngine()) {
04173
04174 AgeVehicle(this);
04175 }
04176 }
04177
04178 Trackdir Train::GetVehicleTrackdir() const
04179 {
04180 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
04181
04182 if (this->track == TRACK_BIT_DEPOT) {
04183
04184 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
04185 }
04186
04187 if (this->track == TRACK_BIT_WORMHOLE) {
04188
04189 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
04190 }
04191
04192 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
04193 }