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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_sound.h"
00022 #include "newgrf_text.h"
00023 #include "group.h"
00024 #include "strings_func.h"
00025 #include "functions.h"
00026 #include "window_func.h"
00027 #include "vehicle_func.h"
00028 #include "sound_func.h"
00029 #include "ai/ai.hpp"
00030 #include "newgrf_station.h"
00031 #include "effectvehicle_func.h"
00032 #include "gamelog.h"
00033 #include "network/network.h"
00034 #include "spritecache.h"
00035 #include "core/random_func.hpp"
00036 #include "company_base.h"
00037 #include "newgrf.h"
00038 #include "order_backup.h"
00039
00040 #include "table/strings.h"
00041 #include "table/train_cmd.h"
00042
00043 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck);
00044 static bool TrainCheckIfLineEnds(Train *v);
00045 static void TrainController(Train *v, Vehicle *nomove);
00046 static TileIndex TrainApproachingCrossingTile(const Train *v);
00047 static void CheckIfTrainNeedsService(Train *v);
00048 static void CheckNextTrainTile(Train *v);
00049
00050 static const byte _vehicle_initial_x_fract[4] = {10, 8, 4, 8};
00051 static const byte _vehicle_initial_y_fract[4] = { 8, 4, 8, 10};
00052
00053
00061 static inline DiagDirection TrainExitDir(Direction direction, TrackBits track)
00062 {
00063 static const TrackBits state_dir_table[DIAGDIR_END] = { TRACK_BIT_RIGHT, TRACK_BIT_LOWER, TRACK_BIT_LEFT, TRACK_BIT_UPPER };
00064
00065 DiagDirection diagdir = DirToDiagDir(direction);
00066
00067
00068 if (!HasBit(direction, 0) && track != state_dir_table[diagdir]) {
00069 diagdir = ChangeDiagDir(diagdir, DIAGDIRDIFF_90LEFT);
00070 }
00071
00072 return diagdir;
00073 }
00074
00075
00081 byte FreightWagonMult(CargoID cargo)
00082 {
00083 if (!CargoSpec::Get(cargo)->is_freight) return 1;
00084 return _settings_game.vehicle.freight_trains;
00085 }
00086
00092 static void RailVehicleLengthChanged(const Train *u)
00093 {
00094
00095 const Engine *engine = Engine::Get(u->engine_type);
00096 uint32 grfid = engine->grf_prop.grffile->grfid;
00097 GRFConfig *grfconfig = GetGRFConfig(grfid);
00098 if (GamelogGRFBugReverse(grfid, engine->grf_prop.local_id) || !HasBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH)) {
00099 ShowNewGrfVehicleError(u->engine_type, STR_NEWGRF_BROKEN, STR_NEWGRF_BROKEN_VEHICLE_LENGTH, GBUG_VEH_LENGTH, true);
00100 }
00101 }
00102
00104 void CheckTrainsLengths()
00105 {
00106 const Train *v;
00107
00108 FOR_ALL_TRAINS(v) {
00109 if (v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00110 for (const Train *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00111 if (u->track != TRACK_BIT_DEPOT) {
00112 if ((w->track != TRACK_BIT_DEPOT &&
00113 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->gcache.cached_veh_length) ||
00114 (w->track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00115 SetDParam(0, v->index);
00116 SetDParam(1, v->owner);
00117 ShowErrorMessage(STR_BROKEN_VEHICLE_LENGTH, INVALID_STRING_ID, WL_CRITICAL);
00118
00119 if (!_networking) DoCommandP(0, PM_PAUSED_ERROR, 1, CMD_PAUSE);
00120 }
00121 }
00122 }
00123 }
00124 }
00125 }
00126
00131 void Train::RailtypeChanged()
00132 {
00133 for (Train *u = this; u != NULL; u = u->Next()) {
00134
00135 u->UpdateVisualEffect(false);
00136 }
00137 this->PowerChanged();
00138 if (this->IsFrontEngine()) this->UpdateAcceleration();
00139 }
00140
00147 void Train::ConsistChanged(bool same_length)
00148 {
00149 uint16 max_speed = UINT16_MAX;
00150
00151 assert(this->IsFrontEngine() || this->IsFreeWagon());
00152
00153 const RailVehicleInfo *rvi_v = RailVehInfo(this->engine_type);
00154 EngineID first_engine = this->IsFrontEngine() ? this->engine_type : INVALID_ENGINE;
00155 this->gcache.cached_total_length = 0;
00156 this->compatible_railtypes = RAILTYPES_NONE;
00157
00158 bool train_can_tilt = true;
00159
00160 for (Train *u = this; u != NULL; u = u->Next()) {
00161 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00162
00163
00164 assert(u->First() == this);
00165
00166
00167 u->gcache.first_engine = this == u ? INVALID_ENGINE : first_engine;
00168 u->railtype = rvi_u->railtype;
00169
00170 if (u->IsEngine()) first_engine = u->engine_type;
00171
00172
00173 u->tcache.user_def_data = rvi_u->user_def_data;
00174 this->InvalidateNewGRFCache();
00175 u->InvalidateNewGRFCache();
00176 }
00177
00178 for (Train *u = this; u != NULL; u = u->Next()) {
00179
00180 u->tcache.user_def_data = GetVehicleProperty(u, PROP_TRAIN_USER_DATA, u->tcache.user_def_data);
00181 this->InvalidateNewGRFCache();
00182 u->InvalidateNewGRFCache();
00183 }
00184
00185 for (Train *u = this; u != NULL; u = u->Next()) {
00186 const Engine *e_u = Engine::Get(u->engine_type);
00187 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00188
00189 if (!HasBit(e_u->info.misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00190
00191
00192 u->tcache.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->gcache.first_engine);
00193
00194
00195 u->colourmap = PAL_NONE;
00196
00197
00198 u->UpdateVisualEffect(true);
00199
00200 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00201 UsesWagonOverride(u) && !HasBit(u->vcache.cached_vis_effect, VE_DISABLE_WAGON_POWER)) {
00202
00203 SetBit(u->flags, VRF_POWEREDWAGON);
00204 } else {
00205 ClrBit(u->flags, VRF_POWEREDWAGON);
00206 }
00207
00208 if (!u->IsArticulatedPart()) {
00209
00210
00211 if (rvi_u->power > 0) {
00212 this->compatible_railtypes |= GetRailTypeInfo(u->railtype)->powered_railtypes;
00213 }
00214
00215
00216
00217 if (HasBit(u->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00218 u->railtype = RAILTYPE_RAIL;
00219 u->compatible_railtypes |= RAILTYPES_RAIL;
00220 }
00221
00222
00223 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00224 uint16 speed = GetVehicleProperty(u, PROP_TRAIN_SPEED, rvi_u->max_speed);
00225 if (speed != 0) max_speed = min(speed, max_speed);
00226 }
00227 }
00228
00229 u->cargo_cap = GetVehicleCapacity(u);
00230
00231
00232 uint16 veh_len = CALLBACK_FAILED;
00233 if (HasBit(e_u->info.callback_mask, CBM_VEHICLE_LENGTH)) {
00234 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00235 }
00236 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00237 veh_len = 8 - Clamp(veh_len, 0, 7);
00238
00239
00240 if (same_length && veh_len != u->gcache.cached_veh_length) RailVehicleLengthChanged(u);
00241
00242
00243 if (!same_length) u->gcache.cached_veh_length = veh_len;
00244
00245 this->gcache.cached_total_length += u->gcache.cached_veh_length;
00246 this->InvalidateNewGRFCache();
00247 u->InvalidateNewGRFCache();
00248 }
00249
00250
00251 this->vcache.cached_max_speed = max_speed;
00252 this->tcache.cached_tilt = train_can_tilt;
00253 this->tcache.cached_max_curve_speed = this->GetCurveSpeedLimit();
00254
00255
00256 this->CargoChanged();
00257
00258 if (this->IsFrontEngine()) {
00259 this->UpdateAcceleration();
00260 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00261 InvalidateWindowData(WC_VEHICLE_REFIT, this->index);
00262 }
00263 }
00264
00275 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length)
00276 {
00277 const Station *st = Station::Get(station_id);
00278 *station_ahead = st->GetPlatformLength(tile, DirToDiagDir(v->direction)) * TILE_SIZE;
00279 *station_length = st->GetPlatformLength(tile) * TILE_SIZE;
00280
00281
00282
00283 OrderStopLocation osl = OSL_PLATFORM_MIDDLE;
00284 if (v->gcache.cached_total_length >= *station_length) {
00285
00286 osl = OSL_PLATFORM_FAR_END;
00287 } else if (v->current_order.IsType(OT_GOTO_STATION) && v->current_order.GetDestination() == station_id) {
00288 osl = v->current_order.GetStopLocation();
00289 }
00290
00291
00292 int stop;
00293 switch (osl) {
00294 default: NOT_REACHED();
00295
00296 case OSL_PLATFORM_NEAR_END:
00297 stop = v->gcache.cached_total_length;
00298 break;
00299
00300 case OSL_PLATFORM_MIDDLE:
00301 stop = *station_length - (*station_length - v->gcache.cached_total_length) / 2;
00302 break;
00303
00304 case OSL_PLATFORM_FAR_END:
00305 stop = *station_length;
00306 break;
00307 }
00308
00309
00310
00311 return stop - (v->gcache.cached_veh_length + 1) / 2;
00312 }
00313
00314
00319 int Train::GetCurveSpeedLimit() const
00320 {
00321 assert(this->First() == this);
00322
00323 static const int absolute_max_speed = UINT16_MAX;
00324 int max_speed = absolute_max_speed;
00325
00326 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return max_speed;
00327
00328 int curvecount[2] = {0, 0};
00329
00330
00331 int numcurve = 0;
00332 int sum = 0;
00333 int pos = 0;
00334 int lastpos = -1;
00335 for (const Vehicle *u = this; u->Next() != NULL; u = u->Next(), pos++) {
00336 Direction this_dir = u->direction;
00337 Direction next_dir = u->Next()->direction;
00338
00339 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00340 if (dirdiff == DIRDIFF_SAME) continue;
00341
00342 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00343 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00344 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00345 if (lastpos != -1) {
00346 numcurve++;
00347 sum += pos - lastpos;
00348 if (pos - lastpos == 1) {
00349 max_speed = 88;
00350 }
00351 }
00352 lastpos = pos;
00353 }
00354
00355
00356 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00357 max_speed = 61;
00358 }
00359 }
00360
00361 if (numcurve > 0 && max_speed > 88) {
00362 if (curvecount[0] == 1 && curvecount[1] == 1) {
00363 max_speed = absolute_max_speed;
00364 } else {
00365 sum /= numcurve;
00366 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00367 }
00368 }
00369
00370 if (max_speed != absolute_max_speed) {
00371
00372 const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00373 max_speed += (max_speed / 2) * rti->curve_speed;
00374
00375 if (this->tcache.cached_tilt) {
00376
00377 max_speed += max_speed / 5;
00378 }
00379 }
00380
00381 return max_speed;
00382 }
00383
00388 int Train::GetCurrentMaxSpeed() const
00389 {
00390 int max_speed = this->tcache.cached_max_curve_speed;
00391 assert(max_speed == this->GetCurveSpeedLimit());
00392
00393 if (IsRailStationTile(this->tile)) {
00394 StationID sid = GetStationIndex(this->tile);
00395 if (this->current_order.ShouldStopAtStation(this, sid)) {
00396 int station_ahead;
00397 int station_length;
00398 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00399
00400
00401
00402 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00403
00404 if (distance_to_go > 0) {
00405 int st_max_speed = 120;
00406
00407 int delta_v = this->cur_speed / (distance_to_go + 1);
00408 if (max_speed > (this->cur_speed - delta_v)) {
00409 st_max_speed = this->cur_speed - (delta_v / 10);
00410 }
00411
00412 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00413 max_speed = min(max_speed, st_max_speed);
00414 }
00415 }
00416 }
00417
00418 for (const Train *u = this; u != NULL; u = u->Next()) {
00419 if (u->track == TRACK_BIT_DEPOT) {
00420 max_speed = min(max_speed, 61);
00421 break;
00422 }
00423 }
00424
00425 return min(max_speed, this->gcache.cached_max_track_speed);
00426 }
00427
00428 void Train::UpdateAcceleration()
00429 {
00430 assert(this->IsFrontEngine());
00431
00432 uint power = this->gcache.cached_power;
00433 uint weight = this->gcache.cached_weight;
00434 assert(weight != 0);
00435 this->acceleration = Clamp(power / weight * 4, 1, 255);
00436 }
00437
00443 int Train::GetDisplayImageWidth(Point *offset) const
00444 {
00445 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00446 int vehicle_pitch = 0;
00447
00448 const Engine *e = Engine::Get(this->engine_type);
00449 if (e->grf_prop.grffile != NULL && is_custom_sprite(e->u.rail.image_index)) {
00450 reference_width = e->grf_prop.grffile->traininfo_vehicle_width;
00451 vehicle_pitch = e->grf_prop.grffile->traininfo_vehicle_pitch;
00452 }
00453
00454 if (offset != NULL) {
00455 offset->x = reference_width / 2;
00456 offset->y = vehicle_pitch;
00457 }
00458 return this->gcache.cached_veh_length * reference_width / 8;
00459 }
00460
00461 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00462 {
00463 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00464 }
00465
00466 SpriteID Train::GetImage(Direction direction) const
00467 {
00468 uint8 spritenum = this->spritenum;
00469 SpriteID sprite;
00470
00471 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00472
00473 if (is_custom_sprite(spritenum)) {
00474 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00475 if (sprite != 0) return sprite;
00476
00477 spritenum = Engine::Get(this->engine_type)->original_image_index;
00478 }
00479
00480 sprite = GetDefaultTrainSprite(spritenum, direction);
00481
00482 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00483
00484 return sprite;
00485 }
00486
00487 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00488 {
00489 const Engine *e = Engine::Get(engine);
00490 Direction dir = rear_head ? DIR_E : DIR_W;
00491 uint8 spritenum = e->u.rail.image_index;
00492
00493 if (is_custom_sprite(spritenum)) {
00494 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00495 if (sprite != 0) {
00496 if (e->grf_prop.grffile != NULL) {
00497 y += e->grf_prop.grffile->traininfo_vehicle_pitch;
00498 }
00499 return sprite;
00500 }
00501
00502 spritenum = Engine::Get(engine)->original_image_index;
00503 }
00504
00505 if (rear_head) spritenum++;
00506
00507 return GetDefaultTrainSprite(spritenum, DIR_W);
00508 }
00509
00510 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal)
00511 {
00512 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00513 int yf = y;
00514 int yr = y;
00515
00516 SpriteID spritef = GetRailIcon(engine, false, yf);
00517 SpriteID spriter = GetRailIcon(engine, true, yr);
00518 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00519 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00520
00521 preferred_x = Clamp(preferred_x, left - real_spritef->x_offs + 14, right - real_spriter->width - real_spriter->x_offs - 15);
00522
00523 DrawSprite(spritef, pal, preferred_x - 14, yf);
00524 DrawSprite(spriter, pal, preferred_x + 15, yr);
00525 } else {
00526 SpriteID sprite = GetRailIcon(engine, false, y);
00527 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00528 preferred_x = Clamp(preferred_x, left - real_sprite->x_offs, right - real_sprite->width - real_sprite->x_offs);
00529 DrawSprite(sprite, pal, preferred_x, y);
00530 }
00531 }
00532
00541 static CommandCost CmdBuildRailWagon(TileIndex tile, DoCommandFlag flags, const Engine *e, Vehicle **ret)
00542 {
00543 const RailVehicleInfo *rvi = &e->u.rail;
00544
00545
00546 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00547
00548 if (flags & DC_EXEC) {
00549 Train *v = new Train();
00550 *ret = v;
00551 v->spritenum = rvi->image_index;
00552
00553 v->engine_type = e->index;
00554 v->gcache.first_engine = INVALID_ENGINE;
00555
00556 DiagDirection dir = GetRailDepotDirection(tile);
00557
00558 v->direction = DiagDirToDir(dir);
00559 v->tile = tile;
00560
00561 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00562 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00563
00564 v->x_pos = x;
00565 v->y_pos = y;
00566 v->z_pos = GetSlopeZ(x, y);
00567 v->owner = _current_company;
00568 v->track = TRACK_BIT_DEPOT;
00569 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00570
00571 v->SetWagon();
00572
00573 v->SetFreeWagon();
00574 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00575
00576 v->cargo_type = e->GetDefaultCargoType();
00577 v->cargo_cap = rvi->capacity;
00578
00579 v->railtype = rvi->railtype;
00580
00581 v->build_year = _cur_year;
00582 v->cur_image = SPR_IMG_QUERY;
00583 v->random_bits = VehicleRandomBits();
00584
00585 v->group_id = DEFAULT_GROUP;
00586
00587 AddArticulatedParts(v);
00588
00589 _new_vehicle_id = v->index;
00590
00591 VehicleMove(v, false);
00592 v->First()->ConsistChanged(false);
00593 UpdateTrainGroupID(v->First());
00594
00595 CheckConsistencyOfArticulatedVehicle(v);
00596
00597
00598 Train *w;
00599 FOR_ALL_TRAINS(w) {
00600 if (w->tile == tile &&
00601 w->IsFreeWagon() &&
00602 w->engine_type == e->index &&
00603 w->First() != v &&
00604 !(w->vehstatus & VS_CRASHED)) {
00605 DoCommand(0, v->index | 1 << 20, w->Last()->index, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00606 break;
00607 }
00608 }
00609 }
00610
00611 return CommandCost();
00612 }
00613
00615 static void NormalizeTrainVehInDepot(const Train *u)
00616 {
00617 const Train *v;
00618 FOR_ALL_TRAINS(v) {
00619 if (v->IsFreeWagon() && v->tile == u->tile &&
00620 v->track == TRACK_BIT_DEPOT) {
00621 if (DoCommand(0, v->index | 1 << 20, u->index, DC_EXEC,
00622 CMD_MOVE_RAIL_VEHICLE).Failed())
00623 break;
00624 }
00625 }
00626 }
00627
00628 static void AddRearEngineToMultiheadedTrain(Train *v)
00629 {
00630 Train *u = new Train();
00631 v->value >>= 1;
00632 u->value = v->value;
00633 u->direction = v->direction;
00634 u->owner = v->owner;
00635 u->tile = v->tile;
00636 u->x_pos = v->x_pos;
00637 u->y_pos = v->y_pos;
00638 u->z_pos = v->z_pos;
00639 u->track = TRACK_BIT_DEPOT;
00640 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00641 u->spritenum = v->spritenum + 1;
00642 u->cargo_type = v->cargo_type;
00643 u->cargo_subtype = v->cargo_subtype;
00644 u->cargo_cap = v->cargo_cap;
00645 u->railtype = v->railtype;
00646 u->engine_type = v->engine_type;
00647 u->build_year = v->build_year;
00648 u->cur_image = SPR_IMG_QUERY;
00649 u->random_bits = VehicleRandomBits();
00650 v->SetMultiheaded();
00651 u->SetMultiheaded();
00652 v->SetNext(u);
00653 VehicleMove(u, false);
00654
00655
00656 v->other_multiheaded_part = u;
00657 u->other_multiheaded_part = v;
00658 }
00659
00669 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, const Engine *e, uint16 data, Vehicle **ret)
00670 {
00671 const RailVehicleInfo *rvi = &e->u.rail;
00672
00673 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(tile, flags, e, ret);
00674
00675
00676
00677 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00678
00679 if (flags & DC_EXEC) {
00680 DiagDirection dir = GetRailDepotDirection(tile);
00681 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00682 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00683
00684 Train *v = new Train();
00685 *ret = v;
00686 v->direction = DiagDirToDir(dir);
00687 v->tile = tile;
00688 v->owner = _current_company;
00689 v->x_pos = x;
00690 v->y_pos = y;
00691 v->z_pos = GetSlopeZ(x, y);
00692 v->track = TRACK_BIT_DEPOT;
00693 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00694 v->spritenum = rvi->image_index;
00695 v->cargo_type = e->GetDefaultCargoType();
00696 v->cargo_cap = rvi->capacity;
00697 v->last_station_visited = INVALID_STATION;
00698
00699 v->engine_type = e->index;
00700 v->gcache.first_engine = INVALID_ENGINE;
00701
00702 v->reliability = e->reliability;
00703 v->reliability_spd_dec = e->reliability_spd_dec;
00704 v->max_age = e->GetLifeLengthInDays();
00705
00706 v->railtype = rvi->railtype;
00707 _new_vehicle_id = v->index;
00708
00709 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00710 v->date_of_last_service = _date;
00711 v->build_year = _cur_year;
00712 v->cur_image = SPR_IMG_QUERY;
00713 v->random_bits = VehicleRandomBits();
00714
00715 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00716
00717 v->group_id = DEFAULT_GROUP;
00718
00719 v->SetFrontEngine();
00720 v->SetEngine();
00721
00722 VehicleMove(v, false);
00723
00724 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00725 AddRearEngineToMultiheadedTrain(v);
00726 } else {
00727 AddArticulatedParts(v);
00728 }
00729
00730 v->ConsistChanged(false);
00731 UpdateTrainGroupID(v);
00732
00733 if (!HasBit(data, 0) && !(flags & DC_AUTOREPLACE)) {
00734 NormalizeTrainVehInDepot(v);
00735 }
00736
00737 CheckConsistencyOfArticulatedVehicle(v);
00738 }
00739
00740 return CommandCost();
00741 }
00742
00743
00744 bool Train::IsInDepot() const
00745 {
00746
00747 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00748
00749
00750 for (const Train *v = this; v != NULL; v = v->Next()) {
00751 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00752 }
00753
00754 return true;
00755 }
00756
00757 bool Train::IsStoppedInDepot() const
00758 {
00759
00760 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00761 return this->IsInDepot();
00762 }
00763
00764 static Train *FindGoodVehiclePos(const Train *src)
00765 {
00766 EngineID eng = src->engine_type;
00767 TileIndex tile = src->tile;
00768
00769 Train *dst;
00770 FOR_ALL_TRAINS(dst) {
00771 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00772
00773 Train *t = dst;
00774 while (t->engine_type == eng) {
00775 t = t->Next();
00776 if (t == NULL) return dst;
00777 }
00778 }
00779 }
00780
00781 return NULL;
00782 }
00783
00785 typedef SmallVector<Train *, 16> TrainList;
00786
00792 static void MakeTrainBackup(TrainList &list, Train *t)
00793 {
00794 for (; t != NULL; t = t->Next()) *list.Append() = t;
00795 }
00796
00801 static void RestoreTrainBackup(TrainList &list)
00802 {
00803
00804 if (list.Length() == 0) return;
00805
00806 Train *prev = NULL;
00807
00808 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00809 Train *t = *iter;
00810 if (prev != NULL) {
00811 prev->SetNext(t);
00812 } else if (t->Previous() != NULL) {
00813
00814 t->Previous()->SetNext(NULL);
00815 }
00816 prev = t;
00817 }
00818 }
00819
00825 static void RemoveFromConsist(Train *part, bool chain = false)
00826 {
00827 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
00828
00829
00830
00831 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
00832
00833
00834 tail->SetNext(NULL);
00835 }
00836
00842 static void InsertInConsist(Train *dst, Train *chain)
00843 {
00844
00845 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
00846
00847 chain->Last()->SetNext(dst->Next());
00848 dst->SetNext(chain);
00849 }
00850
00856 static void NormaliseDualHeads(Train *t)
00857 {
00858 for (; t != NULL; t = t->GetNextVehicle()) {
00859 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
00860
00861
00862 Train *u;
00863 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
00864
00865 if (u == t->other_multiheaded_part) continue;
00866
00867
00868 RemoveFromConsist(t->other_multiheaded_part);
00869
00870 InsertInConsist(u, t->other_multiheaded_part);
00871 }
00872 }
00873
00878 static void NormaliseSubtypes(Train *chain)
00879 {
00880
00881 if (chain == NULL) return;
00882
00883
00884 assert(chain->Previous() == NULL);
00885
00886
00887 if (chain->IsWagon()) {
00888 chain->SetFreeWagon();
00889 } else {
00890 assert(chain->IsEngine());
00891 chain->SetFrontEngine();
00892 }
00893
00894
00895 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
00896 t->ClearFreeWagon();
00897 t->ClearFrontEngine();
00898 }
00899 }
00900
00910 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
00911 {
00912
00913
00914
00915 if ((src != NULL && src->IsEngine() ? 1 : 0) +
00916 (dst != NULL && dst->IsEngine() ? 1 : 0) -
00917 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
00918 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
00919 return CommandCost();
00920 }
00921
00922
00923
00924 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
00925
00926 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00927 }
00928
00934 static CommandCost CheckTrainAttachment(Train *t)
00935 {
00936
00937 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
00938
00939
00940
00941 int allowed_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
00942
00943 Train *head = t;
00944 Train *prev = t;
00945
00946
00947 t = t->Next();
00948 allowed_len--;
00949 prev->SetNext(NULL);
00950
00951
00952 head->InvalidateNewGRFCache();
00953
00954 while (t != NULL) {
00955 Train *next = t->Next();
00956
00957
00958
00959 t->SetNext(NULL);
00960
00961
00962 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
00963 allowed_len--;
00964
00965
00966 EngineID first_engine = t->gcache.first_engine;
00967 t->gcache.first_engine = INVALID_ENGINE;
00968
00969
00970
00971 t->InvalidateNewGRFCache();
00972
00973 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
00974
00975
00976 t->gcache.first_engine = first_engine;
00977
00978
00979 t->InvalidateNewGRFCache();
00980 head->InvalidateNewGRFCache();
00981
00982 if (callback != CALLBACK_FAILED) {
00983
00984 StringID error = STR_NULL;
00985
00986 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00987 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(head->engine_type), 0xD000 + callback);
00988
00989 if (error != STR_NULL) return_cmd_error(error);
00990 }
00991 }
00992
00993
00994 prev->SetNext(t);
00995 prev = t;
00996 t = next;
00997 }
00998
00999 if (allowed_len <= 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01000 return CommandCost();
01001 }
01002
01013 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
01014 {
01015
01016 CommandCost ret = CheckTrainAttachment(src);
01017 if (ret.Failed()) return ret;
01018 ret = CheckTrainAttachment(dst);
01019 if (ret.Failed()) return ret;
01020
01021
01022 return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
01023 }
01024
01033 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01034 {
01035
01036 if (*src_head == *dst_head) {
01037
01038
01039 *dst_head = NULL;
01040 } else if (*dst_head == NULL) {
01041
01042
01043 *dst_head = src;
01044 }
01045
01046 if (src == *src_head) {
01047
01048
01049
01050
01051
01052
01053 *src_head = move_chain ? NULL :
01054 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01055 }
01056
01057
01058
01059
01060 RemoveFromConsist(src, move_chain);
01061 if (*dst_head != src) InsertInConsist(dst, src);
01062
01063
01064
01065 NormaliseDualHeads(*src_head);
01066 NormaliseDualHeads(*dst_head);
01067 }
01068
01074 static void NormaliseTrainHead(Train *head)
01075 {
01076
01077 if (head == NULL) return;
01078
01079
01080 head->ConsistChanged(false);
01081 UpdateTrainGroupID(head);
01082
01083
01084 if (!head->IsFrontEngine()) return;
01085
01086
01087 InvalidateWindowData(WC_VEHICLE_REFIT, head->index);
01088 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, VVW_WIDGET_REFIT_VEH);
01089
01090
01091 if (head->unitnumber != 0) return;
01092 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01093 }
01094
01107 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01108 {
01109 VehicleID s = GB(p1, 0, 20);
01110 VehicleID d = GB(p2, 0, 20);
01111 bool move_chain = HasBit(p1, 20);
01112
01113 Train *src = Train::GetIfValid(s);
01114 if (src == NULL) return CMD_ERROR;
01115
01116 CommandCost ret = CheckOwnership(src->owner);
01117 if (ret.Failed()) return ret;
01118
01119
01120 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01121
01122
01123 Train *dst;
01124 if (d == INVALID_VEHICLE) {
01125 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01126 } else {
01127 dst = Train::GetIfValid(d);
01128 if (dst == NULL) return CMD_ERROR;
01129
01130 CommandCost ret = CheckOwnership(dst->owner);
01131 if (ret.Failed()) return ret;
01132
01133
01134 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01135 }
01136
01137
01138 src = src->GetFirstEnginePart();
01139 if (dst != NULL) {
01140 dst = dst->GetFirstEnginePart();
01141 }
01142
01143
01144 if (src == dst) return CommandCost();
01145
01146
01147 Train *src_head = src->First();
01148 Train *dst_head;
01149 if (dst != NULL) {
01150 dst_head = dst->First();
01151 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01152
01153 dst = dst->GetLastEnginePart();
01154 } else {
01155 dst_head = NULL;
01156 }
01157
01158 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01159
01160
01161 if (move_chain && src_head == dst_head) return CommandCost();
01162
01163
01164 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01165
01166
01167 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01168
01169
01170 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01171
01172
01173
01174 TrainList original_src;
01175 TrainList original_dst;
01176
01177 MakeTrainBackup(original_src, src_head);
01178 MakeTrainBackup(original_dst, dst_head);
01179
01180
01181
01182
01183 Train *original_src_head = src_head;
01184 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01185
01186
01187 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01188
01189 if ((flags & DC_AUTOREPLACE) == 0) {
01190
01191
01192
01193 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
01194 if (ret.Failed()) {
01195
01196 RestoreTrainBackup(original_src);
01197 RestoreTrainBackup(original_dst);
01198 return ret;
01199 }
01200 }
01201
01202
01203 if (flags & DC_EXEC) {
01204
01205 NormaliseSubtypes(src_head);
01206 NormaliseSubtypes(dst_head);
01207
01208
01209
01210
01211
01212
01213
01214
01215
01216
01217
01218
01219
01220
01221
01222
01223
01224
01225
01226
01227
01228 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01229
01230 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01231 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01232 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01233 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01234 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01235
01236
01237
01238 if (dst_head != NULL && dst_head != src && (src_head == NULL || !src_head->IsFrontEngine())) {
01239 DecreaseGroupNumVehicle(src->group_id);
01240 }
01241
01242
01243
01244 if (dst_head == NULL && !src_head->IsFrontEngine()) {
01245 DecreaseGroupNumVehicle(src->group_id);
01246 }
01247
01248
01249
01250 DeleteVehicleOrders(src);
01251 RemoveVehicleFromGroup(src);
01252 src->unitnumber = 0;
01253 }
01254
01255
01256
01257 if (original_src_head == src && dst_head == src) {
01258 IncreaseGroupNumVehicle(src->group_id);
01259 }
01260
01261
01262
01263 if (original_src_head != src && dst_head == src) {
01264 SetTrainGroupID(src, DEFAULT_GROUP);
01265 }
01266
01267
01268 NormaliseTrainHead(src_head);
01269 NormaliseTrainHead(dst_head);
01270
01271
01272 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01273 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01274 } else {
01275
01276 RestoreTrainBackup(original_src);
01277 RestoreTrainBackup(original_dst);
01278 }
01279
01280 return CommandCost();
01281 }
01282
01294 CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint32 user)
01295 {
01296
01297 Window *w = NULL;
01298
01299
01300 bool sell_chain = HasBit(data, 0);
01301
01302 Train *v = Train::From(t)->GetFirstEnginePart();
01303 Train *first = v->First();
01304
01305 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01306
01307
01308
01309 TrainList original;
01310 MakeTrainBackup(original, first);
01311
01312
01313 Train *new_head = first;
01314 Train *sell_head = NULL;
01315
01316
01317 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01318
01319
01320 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
01321 if (ret.Failed()) {
01322
01323 RestoreTrainBackup(original);
01324 return ret;
01325 }
01326
01327 CommandCost cost(EXPENSES_NEW_VEHICLES);
01328 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01329
01330
01331 if (flags & DC_EXEC) {
01332
01333 NormaliseSubtypes(new_head);
01334
01335 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01336
01337
01338 new_head->orders.list = first->orders.list;
01339 new_head->AddToShared(first);
01340 DeleteVehicleOrders(first);
01341
01342
01343 new_head->CopyVehicleConfigAndStatistics(first);
01344 IncreaseGroupNumVehicle(new_head->group_id);
01345
01346
01347 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01348 } else if (v->IsPrimaryVehicle() && data & (MAKE_ORDER_BACKUP_FLAG >> 20)) {
01349 OrderBackup::Backup(v, user);
01350 }
01351
01352
01353 NormaliseTrainHead(new_head);
01354
01355
01356 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01357 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01358
01359
01360 delete sell_head;
01361 } else {
01362
01363 RestoreTrainBackup(original);
01364 }
01365
01366 return cost;
01367 }
01368
01369 void Train::UpdateDeltaXY(Direction direction)
01370 {
01371 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01372 static const uint32 _delta_xy_table[8] = {
01373 MKIT(3, 3, -1, -1),
01374 MKIT(3, 7, -1, -3),
01375 MKIT(3, 3, -1, -1),
01376 MKIT(7, 3, -3, -1),
01377 MKIT(3, 3, -1, -1),
01378 MKIT(3, 7, -1, -3),
01379 MKIT(3, 3, -1, -1),
01380 MKIT(7, 3, -3, -1),
01381 };
01382 #undef MKIT
01383
01384 uint32 x = _delta_xy_table[direction];
01385 this->x_offs = GB(x, 0, 8);
01386 this->y_offs = GB(x, 8, 8);
01387 this->x_extent = GB(x, 16, 8);
01388 this->y_extent = GB(x, 24, 8);
01389 this->z_extent = 6;
01390 }
01391
01392 static inline void SetLastSpeed(Train *v, int spd)
01393 {
01394 int old = v->tcache.last_speed;
01395 if (spd != old) {
01396 v->tcache.last_speed = spd;
01397 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01398 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01399 }
01400 }
01401 }
01402
01404 static void MarkTrainAsStuck(Train *v)
01405 {
01406 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01407
01408 SetBit(v->flags, VRF_TRAIN_STUCK);
01409
01410 v->wait_counter = 0;
01411
01412
01413 v->cur_speed = 0;
01414 v->subspeed = 0;
01415 SetLastSpeed(v, 0);
01416
01417 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01418 }
01419 }
01420
01421 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01422 {
01423 uint16 flag1 = *swap_flag1;
01424 uint16 flag2 = *swap_flag2;
01425
01426
01427 ClrBit(*swap_flag1, GVF_GOINGUP_BIT);
01428 ClrBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01429 ClrBit(*swap_flag2, GVF_GOINGUP_BIT);
01430 ClrBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01431
01432
01433 if (HasBit(flag1, GVF_GOINGUP_BIT)) {
01434 SetBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01435 } else if (HasBit(flag1, GVF_GOINGDOWN_BIT)) {
01436 SetBit(*swap_flag2, GVF_GOINGUP_BIT);
01437 }
01438 if (HasBit(flag2, GVF_GOINGUP_BIT)) {
01439 SetBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01440 } else if (HasBit(flag2, GVF_GOINGDOWN_BIT)) {
01441 SetBit(*swap_flag1, GVF_GOINGUP_BIT);
01442 }
01443 }
01444
01445 static void ReverseTrainSwapVeh(Train *v, int l, int r)
01446 {
01447 Train *a, *b;
01448
01449
01450 for (a = v; l != 0; l--) a = a->Next();
01451 for (b = v; r != 0; r--) b = b->Next();
01452
01453 if (a != b) {
01454
01455 {
01456 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus & VS_HIDDEN);
01457 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus & VS_HIDDEN);
01458 a->vehstatus = tmp;
01459 }
01460
01461 Swap(a->track, b->track);
01462 Swap(a->direction, b->direction);
01463
01464
01465 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01466 if (b->track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01467
01468 Swap(a->x_pos, b->x_pos);
01469 Swap(a->y_pos, b->y_pos);
01470 Swap(a->tile, b->tile);
01471 Swap(a->z_pos, b->z_pos);
01472
01473 SwapTrainFlags(&a->gv_flags, &b->gv_flags);
01474
01475
01476 a->UpdateViewport(true, true);
01477 b->UpdateViewport(true, true);
01478
01479
01480 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01481 if (b->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01482 } else {
01483 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01484 a->UpdateViewport(true, true);
01485
01486 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01487 }
01488
01489
01490 v->RailtypeChanged();
01491 }
01492
01493
01499 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01500 {
01501 return (v->type == VEH_TRAIN) ? v : NULL;
01502 }
01503
01504
01511 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01512 {
01513 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01514
01515 Train *t = Train::From(v);
01516 if (!t->IsFrontEngine()) return NULL;
01517
01518 TileIndex tile = *(TileIndex *)data;
01519
01520 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01521
01522 return t;
01523 }
01524
01525
01532 static bool TrainApproachingCrossing(TileIndex tile)
01533 {
01534 assert(IsLevelCrossingTile(tile));
01535
01536 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01537 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01538
01539 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01540
01541 dir = ReverseDiagDir(dir);
01542 tile_from = tile + TileOffsByDiagDir(dir);
01543
01544 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01545 }
01546
01547
01554 void UpdateLevelCrossing(TileIndex tile, bool sound)
01555 {
01556 assert(IsLevelCrossingTile(tile));
01557
01558
01559 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01560
01561 if (new_state != IsCrossingBarred(tile)) {
01562 if (new_state && sound) {
01563 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01564 }
01565 SetCrossingBarred(tile, new_state);
01566 MarkTileDirtyByTile(tile);
01567 }
01568 }
01569
01570
01576 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01577 {
01578 if (!IsCrossingBarred(tile)) {
01579 BarCrossing(tile);
01580 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01581 MarkTileDirtyByTile(tile);
01582 }
01583 }
01584
01585
01591 static void AdvanceWagonsBeforeSwap(Train *v)
01592 {
01593 Train *base = v;
01594 Train *first = base;
01595 Train *last = v->Last();
01596 uint length = CountVehiclesInChain(v);
01597
01598 while (length > 2) {
01599 last = last->Previous();
01600 first = first->Next();
01601
01602 int differential = base->gcache.cached_veh_length - last->gcache.cached_veh_length;
01603
01604
01605
01606 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01607
01608 base = first;
01609 length -= 2;
01610 }
01611 }
01612
01613
01619 static void AdvanceWagonsAfterSwap(Train *v)
01620 {
01621
01622 Train *dep = v;
01623 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01624 dep = dep->Next();
01625 }
01626
01627 Train *leave = dep->Next();
01628
01629 if (leave != NULL) {
01630
01631 int d = TicksToLeaveDepot(dep);
01632
01633 if (d <= 0) {
01634 leave->vehstatus &= ~VS_HIDDEN;
01635 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01636 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01637 }
01638 } else {
01639 dep = NULL;
01640 }
01641
01642 Train *base = v;
01643 Train *first = base;
01644 Train *last = v->Last();
01645 uint length = CountVehiclesInChain(v);
01646
01647
01648
01649 bool nomove = (dep == NULL);
01650
01651 while (length > 2) {
01652
01653
01654 if (base == dep) break;
01655
01656
01657 if (last == dep) nomove = true;
01658
01659 last = last->Previous();
01660 first = first->Next();
01661
01662 int differential = last->gcache.cached_veh_length - base->gcache.cached_veh_length;
01663
01664
01665 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01666
01667 base = first;
01668 length -= 2;
01669 }
01670 }
01671
01672
01673 static void ReverseTrainDirection(Train *v)
01674 {
01675 if (IsRailDepotTile(v->tile)) {
01676 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01677 }
01678
01679
01680 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01681
01682
01683 TileIndex crossing = TrainApproachingCrossingTile(v);
01684
01685
01686 int r = CountVehiclesInChain(v) - 1;
01687
01688 AdvanceWagonsBeforeSwap(v);
01689
01690
01691 int l = 0;
01692 do {
01693 ReverseTrainSwapVeh(v, l++, r--);
01694 } while (l <= r);
01695
01696 AdvanceWagonsAfterSwap(v);
01697
01698 if (IsRailDepotTile(v->tile)) {
01699 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01700 }
01701
01702 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01703
01704 ClrBit(v->flags, VRF_REVERSING);
01705
01706
01707 v->ConsistChanged(true);
01708
01709
01710 for (Train *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01711
01712
01713 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01714
01715
01716 crossing = TrainApproachingCrossingTile(v);
01717 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01718
01719
01720 if (v->track == TRACK_BIT_DEPOT) {
01721
01722 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01723 ClrBit(v->flags, VRF_TRAIN_STUCK);
01724 return;
01725 }
01726
01727
01728
01729 DiagDirection dir = TrainExitDir(v->direction, v->track);
01730 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01731
01732 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01733
01734
01735 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01736 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01737 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01738
01739 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01740 if (TryPathReserve(v, false, first_tile_okay)) {
01741
01742 CheckNextTrainTile(v);
01743 } else if (v->current_order.GetType() != OT_LOADING) {
01744
01745 MarkTrainAsStuck(v);
01746 }
01747 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01748
01749 ClrBit(v->flags, VRF_TRAIN_STUCK);
01750 v->wait_counter = 0;
01751 }
01752 }
01753
01763 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01764 {
01765 Train *v = Train::GetIfValid(p1);
01766 if (v == NULL) return CMD_ERROR;
01767
01768 CommandCost ret = CheckOwnership(v->owner);
01769 if (ret.Failed()) return ret;
01770
01771 if (p2 != 0) {
01772
01773
01774 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01775 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01776 }
01777
01778 Train *front = v->First();
01779
01780 if (!front->IsStoppedInDepot()) {
01781 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01782 }
01783
01784 if (flags & DC_EXEC) {
01785 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01786 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
01787 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
01788
01789 v->force_proceed = TFP_NONE;
01790 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01791 }
01792 } else {
01793
01794 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01795
01796 if (flags & DC_EXEC) {
01797
01798 if (v->current_order.IsType(OT_LOADING)) {
01799 const Vehicle *last = v;
01800 while (last->Next() != NULL) last = last->Next();
01801
01802
01803 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01804 v->LeaveStation();
01805 }
01806 }
01807
01808
01809 v->force_proceed = TFP_NONE;
01810 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01811
01812 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01813 ToggleBit(v->flags, VRF_REVERSING);
01814 } else {
01815 v->cur_speed = 0;
01816 SetLastSpeed(v, 0);
01817 HideFillingPercent(&v->fill_percent_te_id);
01818 ReverseTrainDirection(v);
01819 }
01820 }
01821 }
01822 return CommandCost();
01823 }
01824
01834 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01835 {
01836 Train *t = Train::GetIfValid(p1);
01837 if (t == NULL) return CMD_ERROR;
01838
01839 CommandCost ret = CheckOwnership(t->owner);
01840 if (ret.Failed()) return ret;
01841
01842
01843 if (flags & DC_EXEC) {
01844
01845
01846
01847
01848
01849 t->force_proceed = t->force_proceed == TFP_SIGNAL ? TFP_NONE : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? TFP_STUCK : TFP_SIGNAL;
01850 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
01851 }
01852
01853 return CommandCost();
01854 }
01855
01860 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
01861 {
01862 assert(!(v->vehstatus & VS_CRASHED));
01863
01864 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
01865
01866 PBSTileInfo origin = FollowTrainReservation(v);
01867 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
01868
01869 switch (_settings_game.pf.pathfinder_for_trains) {
01870 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
01871 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
01872
01873 default: NOT_REACHED();
01874 }
01875 }
01876
01877 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
01878 {
01879 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
01880 if (tfdd.best_length == UINT_MAX) return false;
01881
01882 if (location != NULL) *location = tfdd.tile;
01883 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
01884 if (reverse != NULL) *reverse = tfdd.reverse;
01885
01886 return true;
01887 }
01888
01889 void Train::PlayLeaveStationSound() const
01890 {
01891 static const SoundFx sfx[] = {
01892 SND_04_TRAIN,
01893 SND_0A_TRAIN_HORN,
01894 SND_0A_TRAIN_HORN,
01895 SND_47_MAGLEV_2,
01896 SND_41_MAGLEV
01897 };
01898
01899 if (PlayVehicleSound(this, VSE_START)) return;
01900
01901 EngineID engtype = this->engine_type;
01902 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
01903 }
01904
01906 static void CheckNextTrainTile(Train *v)
01907 {
01908
01909 if (_settings_game.pf.path_backoff_interval == 255) return;
01910
01911
01912 if (v->track == TRACK_BIT_DEPOT) return;
01913
01914 switch (v->current_order.GetType()) {
01915
01916 case OT_GOTO_DEPOT:
01917 if (v->tile == v->dest_tile) return;
01918 break;
01919
01920 case OT_GOTO_WAYPOINT:
01921
01922 if (IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
01923 break;
01924
01925 case OT_NOTHING:
01926 case OT_LEAVESTATION:
01927 case OT_LOADING:
01928
01929 if (v->GetNumOrders() > 0) return;
01930 break;
01931
01932 default:
01933 break;
01934 }
01935
01936 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
01937
01938 Trackdir td = v->GetVehicleTrackdir();
01939
01940
01941 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
01942 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
01943 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
01944
01945 CFollowTrackRail ft(v);
01946 if (!ft.Follow(v->tile, td)) return;
01947
01948 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
01949
01950 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
01951 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
01952
01953 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
01954 if (_settings_game.pf.forbid_90_deg) {
01955 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
01956 }
01957 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
01958 }
01959 }
01960 }
01961 }
01962
01963 static bool CheckTrainStayInDepot(Train *v)
01964 {
01965
01966 for (const Train *u = v; u != NULL; u = u->Next()) {
01967 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
01968 }
01969
01970
01971 if (v->gcache.cached_power == 0) {
01972 v->vehstatus |= VS_STOPPED;
01973 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
01974 return true;
01975 }
01976
01977 SigSegState seg_state;
01978
01979 if (v->force_proceed == TFP_NONE) {
01980
01981 if (++v->wait_counter < 37) {
01982 SetWindowClassesDirty(WC_TRAINS_LIST);
01983 return true;
01984 }
01985
01986 v->wait_counter = 0;
01987
01988 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
01989 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
01990
01991 SetWindowClassesDirty(WC_TRAINS_LIST);
01992 return true;
01993 }
01994 } else {
01995 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
01996 }
01997
01998
01999 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02000
02001 if (HasDepotReservation(v->tile)) return true;
02002 SetDepotReservation(v->tile, true);
02003 VehicleEnterDepot(v);
02004 return true;
02005 }
02006
02007
02008 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == TFP_NONE) {
02009
02010 SetWindowClassesDirty(WC_TRAINS_LIST);
02011 MarkTrainAsStuck(v);
02012 return true;
02013 }
02014
02015 SetDepotReservation(v->tile, true);
02016 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02017
02018 VehicleServiceInDepot(v);
02019 SetWindowClassesDirty(WC_TRAINS_LIST);
02020 v->PlayLeaveStationSound();
02021
02022 v->track = TRACK_BIT_X;
02023 if (v->direction & 2) v->track = TRACK_BIT_Y;
02024
02025 v->vehstatus &= ~VS_HIDDEN;
02026 v->cur_speed = 0;
02027
02028 v->UpdateDeltaXY(v->direction);
02029 v->cur_image = v->GetImage(v->direction);
02030 VehicleMove(v, false);
02031 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02032 v->UpdateAcceleration();
02033 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02034
02035 return false;
02036 }
02037
02039 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02040 {
02041 DiagDirection dir = TrackdirToExitdir(track_dir);
02042
02043 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02044
02045 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02046 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02047
02048 if (TunnelBridgeIsFree(tile, end, v).Succeeded()) {
02049
02050 SetTunnelBridgeReservation(tile, false);
02051 SetTunnelBridgeReservation(end, false);
02052
02053 if (_settings_client.gui.show_track_reservation) {
02054 MarkTileDirtyByTile(tile);
02055 MarkTileDirtyByTile(end);
02056 }
02057 }
02058 }
02059 } else if (IsRailStationTile(tile)) {
02060 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02061
02062
02063 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02064 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02065 }
02066 } else {
02067
02068 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02069 }
02070 }
02071
02073 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02074 {
02075 assert(v->IsFrontEngine());
02076
02077 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02078 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02079 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02080 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02081
02082
02083 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02084
02085 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02086 while (ft.Follow(tile, td)) {
02087 tile = ft.m_new_tile;
02088 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02089 td = RemoveFirstTrackdir(&bits);
02090 assert(bits == TRACKDIR_BIT_NONE);
02091
02092 if (!IsValidTrackdir(td)) break;
02093
02094 if (IsTileType(tile, MP_RAILWAY)) {
02095 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02096
02097 UnreserveRailTrack(tile, TrackdirToTrack(td));
02098 break;
02099 }
02100 if (HasPbsSignalOnTrackdir(tile, td)) {
02101 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02102
02103 break;
02104 } else {
02105
02106 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02107 MarkTileDirtyByTile(tile);
02108 }
02109 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02110 break;
02111 }
02112 }
02113
02114
02115 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);
02116
02117 free_tile = true;
02118 }
02119 }
02120
02121 static const byte _initial_tile_subcoord[6][4][3] = {
02122 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02123 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02124 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02125 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02126 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02127 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02128 };
02129
02142 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool &path_found, bool do_track_reservation, PBSTileInfo *dest)
02143 {
02144 switch (_settings_game.pf.pathfinder_for_trains) {
02145 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02146 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02147
02148 default: NOT_REACHED();
02149 }
02150 }
02151
02157 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02158 {
02159 PBSTileInfo origin = FollowTrainReservation(v);
02160
02161 CFollowTrackRail ft(v);
02162
02163 TileIndex tile = origin.tile;
02164 Trackdir cur_td = origin.trackdir;
02165 while (ft.Follow(tile, cur_td)) {
02166 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02167
02168 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02169 }
02170
02171 if (_settings_game.pf.forbid_90_deg) {
02172 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02173 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02174 }
02175
02176
02177 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02178 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02179
02180
02181
02182
02183
02184
02185 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02186
02187
02188
02189 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02190
02191
02192 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02193 if (enterdir) *enterdir = ft.m_exitdir;
02194 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02195 }
02196
02197 tile = ft.m_new_tile;
02198 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02199
02200 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02201 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02202 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02203
02204 return PBSTileInfo(tile, cur_td, true);
02205 }
02206
02207 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02208 }
02209
02210 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02211
02212 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02213 }
02214
02215
02216 tile = origin.tile;
02217 cur_td = origin.trackdir;
02218 TileIndex stopped = ft.m_old_tile;
02219 Trackdir stopped_td = ft.m_old_td;
02220 while (tile != stopped || cur_td != stopped_td) {
02221 if (!ft.Follow(tile, cur_td)) break;
02222
02223 if (_settings_game.pf.forbid_90_deg) {
02224 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02225 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02226 }
02227 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02228
02229 tile = ft.m_new_tile;
02230 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02231
02232 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02233 }
02234
02235
02236 return PBSTileInfo();
02237 }
02238
02249 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02250 {
02251 switch (_settings_game.pf.pathfinder_for_trains) {
02252 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02253 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02254
02255 default: NOT_REACHED();
02256 }
02257 }
02258
02260 class VehicleOrderSaver
02261 {
02262 private:
02263 Vehicle *v;
02264 Order old_order;
02265 TileIndex old_dest_tile;
02266 StationID old_last_station_visited;
02267 VehicleOrderID index;
02268
02269 public:
02270 VehicleOrderSaver(Vehicle *_v) :
02271 v(_v),
02272 old_order(_v->current_order),
02273 old_dest_tile(_v->dest_tile),
02274 old_last_station_visited(_v->last_station_visited),
02275 index(_v->cur_order_index)
02276 {
02277 }
02278
02279 ~VehicleOrderSaver()
02280 {
02281 this->v->current_order = this->old_order;
02282 this->v->dest_tile = this->old_dest_tile;
02283 this->v->last_station_visited = this->old_last_station_visited;
02284 }
02285
02291 bool SwitchToNextOrder(bool skip_first)
02292 {
02293 if (this->v->GetNumOrders() == 0) return false;
02294
02295 if (skip_first) ++this->index;
02296
02297 int conditional_depth = 0;
02298
02299 do {
02300
02301 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02302
02303 Order *order = this->v->GetOrder(this->index);
02304 assert(order != NULL);
02305
02306 switch (order->GetType()) {
02307 case OT_GOTO_DEPOT:
02308
02309 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02310 case OT_GOTO_STATION:
02311 case OT_GOTO_WAYPOINT:
02312 this->v->current_order = *order;
02313 UpdateOrderDest(this->v, order);
02314 return true;
02315 case OT_CONDITIONAL: {
02316 if (conditional_depth > this->v->GetNumOrders()) return false;
02317 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02318 if (next != INVALID_VEH_ORDER_ID) {
02319 conditional_depth++;
02320 this->index = next;
02321
02322 continue;
02323 }
02324 break;
02325 }
02326 default:
02327 break;
02328 }
02329
02330
02331 ++this->index;
02332 } while (this->index != this->v->cur_order_index);
02333
02334 return false;
02335 }
02336 };
02337
02338
02339 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02340 {
02341 Track best_track = INVALID_TRACK;
02342 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02343 bool changed_signal = false;
02344
02345 assert((tracks & ~TRACK_BIT_MASK) == 0);
02346
02347 if (got_reservation != NULL) *got_reservation = false;
02348
02349
02350 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02351
02352 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02353
02354
02355 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02356 Track track = FindFirstTrack(tracks);
02357
02358 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02359 do_track_reservation = true;
02360 changed_signal = true;
02361 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02362 } else if (!do_track_reservation) {
02363 return track;
02364 }
02365 best_track = track;
02366 }
02367
02368 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02369 DiagDirection dest_enterdir = enterdir;
02370 if (do_track_reservation) {
02371
02372
02373
02374 CheckIfTrainNeedsService(v);
02375 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02376
02377 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02378 if (res_dest.tile == INVALID_TILE) {
02379
02380 if (mark_stuck) MarkTrainAsStuck(v);
02381 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02382 return FindFirstTrack(tracks);
02383 }
02384 }
02385
02386
02387 VehicleOrderSaver orders(v);
02388
02389
02390
02391
02392
02393
02394
02395 if (v->current_order.IsType(OT_LEAVESTATION)) {
02396 orders.SwitchToNextOrder(false);
02397 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02398 v->current_order.IsType(OT_GOTO_STATION) ?
02399 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02400 v->tile == v->dest_tile))) {
02401 orders.SwitchToNextOrder(true);
02402 }
02403
02404 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02405
02406 bool path_found = true;
02407 TileIndex new_tile = res_dest.tile;
02408
02409 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, path_found, do_track_reservation, &res_dest);
02410 if (new_tile == tile) best_track = next_track;
02411 v->HandlePathfindingResult(path_found);
02412 }
02413
02414
02415 if (!do_track_reservation) return best_track;
02416
02417
02418 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02419 if (mark_stuck) MarkTrainAsStuck(v);
02420 FreeTrainTrackReservation(v);
02421 return best_track;
02422 }
02423
02424
02425 if (res_dest.tile == INVALID_TILE) {
02426
02427 PBSTileInfo origin = FollowTrainReservation(v);
02428 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02429 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02430 best_track = FindFirstTrack(res);
02431 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02432 if (got_reservation != NULL) *got_reservation = true;
02433 if (changed_signal) MarkTileDirtyByTile(tile);
02434 } else {
02435 FreeTrainTrackReservation(v);
02436 if (mark_stuck) MarkTrainAsStuck(v);
02437 }
02438 return best_track;
02439 }
02440
02441 if (got_reservation != NULL) *got_reservation = true;
02442
02443
02444 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02445
02446 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02447 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02448 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02449 if (_settings_game.pf.forbid_90_deg) {
02450 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02451 }
02452
02453
02454 if (orders.SwitchToNextOrder(true)) {
02455 PBSTileInfo cur_dest;
02456 bool path_found;
02457 DoTrainPathfind(v, next_tile, exitdir, reachable, path_found, true, &cur_dest);
02458 if (cur_dest.tile != INVALID_TILE) {
02459 res_dest = cur_dest;
02460 if (res_dest.okay) continue;
02461
02462 FreeTrainTrackReservation(v);
02463 if (mark_stuck) MarkTrainAsStuck(v);
02464 if (got_reservation != NULL) *got_reservation = false;
02465 changed_signal = false;
02466 break;
02467 }
02468 }
02469
02470 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02471 FreeTrainTrackReservation(v);
02472 if (mark_stuck) MarkTrainAsStuck(v);
02473 if (got_reservation != NULL) *got_reservation = false;
02474 changed_signal = false;
02475 }
02476 break;
02477 }
02478
02479 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02480
02481 if (changed_signal) MarkTileDirtyByTile(tile);
02482
02483 return best_track;
02484 }
02485
02494 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02495 {
02496 assert(v->IsFrontEngine());
02497
02498
02499
02500
02501 if (v->track == TRACK_BIT_DEPOT) {
02502 if (HasDepotReservation(v->tile)) {
02503 if (mark_as_stuck) MarkTrainAsStuck(v);
02504 return false;
02505 } else {
02506
02507 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02508 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02509 }
02510 }
02511
02512 Vehicle *other_train = NULL;
02513 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02514
02515
02516
02517
02518
02519 if (other_train != NULL && other_train->index != v->index) {
02520 if (mark_as_stuck) MarkTrainAsStuck(v);
02521 return false;
02522 }
02523
02524 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02525
02526 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02527 ClrBit(v->flags, VRF_TRAIN_STUCK);
02528 return true;
02529 }
02530
02531
02532 if (v->track == TRACK_BIT_DEPOT) {
02533 SetDepotReservation(v->tile, true);
02534 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02535 }
02536
02537 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02538 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02539 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02540
02541 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02542
02543 bool res_made = false;
02544 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02545
02546 if (!res_made) {
02547
02548 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02549 return false;
02550 }
02551
02552 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02553 v->wait_counter = 0;
02554 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02555 }
02556 ClrBit(v->flags, VRF_TRAIN_STUCK);
02557 return true;
02558 }
02559
02560
02561 static bool CheckReverseTrain(const Train *v)
02562 {
02563 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02564 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02565 !(v->direction & 1)) {
02566 return false;
02567 }
02568
02569 assert(v->track != TRACK_BIT_NONE);
02570
02571 switch (_settings_game.pf.pathfinder_for_trains) {
02572 case VPF_NPF: return NPFTrainCheckReverse(v);
02573 case VPF_YAPF: return YapfTrainCheckReverse(v);
02574
02575 default: NOT_REACHED();
02576 }
02577 }
02578
02579 TileIndex Train::GetOrderStationLocation(StationID station)
02580 {
02581 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02582
02583 const Station *st = Station::Get(station);
02584 if (!(st->facilities & FACIL_TRAIN)) {
02585
02586 this->IncrementOrderIndex();
02587 return 0;
02588 }
02589
02590 return st->xy;
02591 }
02592
02593 void Train::MarkDirty()
02594 {
02595 Train *v = this;
02596 do {
02597 v->UpdateViewport(false, false);
02598 } while ((v = v->Next()) != NULL);
02599
02600
02601 this->CargoChanged();
02602 this->UpdateAcceleration();
02603 }
02604
02612 int Train::UpdateSpeed()
02613 {
02614 uint accel;
02615 uint16 max_speed;
02616
02617 switch (_settings_game.vehicle.train_acceleration_model) {
02618 default: NOT_REACHED();
02619 case AM_ORIGINAL:
02620 max_speed = this->gcache.cached_max_track_speed;
02621 accel = this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2);
02622 break;
02623 case AM_REALISTIC:
02624 max_speed = this->GetCurrentMaxSpeed();
02625 accel = this->GetAcceleration();
02626 break;
02627 }
02628
02629 uint spd = this->subspeed + accel;
02630 this->subspeed = (byte)spd;
02631 {
02632 int tempmax = max_speed;
02633 if (this->cur_speed > max_speed) {
02634 tempmax = this->cur_speed - (this->cur_speed / 10) - 1;
02635 }
02636
02637 int min_speed = (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL || this->GetAccelerationStatus() == AS_BRAKE) ? 0 : 2;
02638 this->cur_speed = spd = Clamp(this->cur_speed + ((int)spd >> 8), min_speed, tempmax);
02639 }
02640
02641 int scaled_spd = this->GetAdvanceSpeed(spd);
02642
02643 scaled_spd += this->progress;
02644 this->progress = 0;
02645 return scaled_spd;
02646 }
02647
02653 static void TrainEnterStation(Train *v, StationID station)
02654 {
02655 v->last_station_visited = station;
02656
02657
02658 Station *st = Station::Get(station);
02659 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02660 st->had_vehicle_of_type |= HVOT_TRAIN;
02661 SetDParam(0, st->index);
02662 AddVehicleNewsItem(
02663 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02664 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
02665 v->index,
02666 st->index
02667 );
02668 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
02669 }
02670
02671 v->force_proceed = TFP_NONE;
02672 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02673
02674 v->BeginLoading();
02675
02676 TriggerStationAnimation(st, v->tile, SAT_TRAIN_ARRIVES);
02677 }
02678
02679
02680 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
02681 {
02682 return IsTileOwner(tile, v->owner) &&
02683 (!v->IsFrontEngine() || HasBit(v->compatible_railtypes, GetRailType(tile)));
02684 }
02685
02686 struct RailtypeSlowdownParams {
02687 byte small_turn, large_turn;
02688 byte z_up;
02689 byte z_down;
02690 };
02691
02692 static const RailtypeSlowdownParams _railtype_slowdown[] = {
02693
02694 {256 / 4, 256 / 2, 256 / 4, 2},
02695 {256 / 4, 256 / 2, 256 / 4, 2},
02696 {256 / 4, 256 / 2, 256 / 4, 2},
02697 {0, 256 / 2, 256 / 4, 2},
02698 };
02699
02701 static inline void AffectSpeedByZChange(Train *v, byte old_z)
02702 {
02703 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
02704
02705 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
02706
02707 if (old_z < v->z_pos) {
02708 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
02709 } else {
02710 uint16 spd = v->cur_speed + rsp->z_down;
02711 if (spd <= v->gcache.cached_max_track_speed) v->cur_speed = spd;
02712 }
02713 }
02714
02715 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
02716 {
02717 if (IsTileType(tile, MP_RAILWAY) &&
02718 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
02719 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
02720 Trackdir trackdir = FindFirstTrackdir(tracks);
02721 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
02722
02723 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
02724 }
02725 }
02726 return false;
02727 }
02728
02732 void Train::ReserveTrackUnderConsist() const
02733 {
02734 for (const Train *u = this; u != NULL; u = u->Next()) {
02735 switch (u->track) {
02736 case TRACK_BIT_WORMHOLE:
02737 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
02738 break;
02739 case TRACK_BIT_DEPOT:
02740 break;
02741 default:
02742 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
02743 break;
02744 }
02745 }
02746 }
02747
02748 uint Train::Crash(bool flooded)
02749 {
02750 uint pass = 0;
02751 if (this->IsFrontEngine()) {
02752 pass += 2;
02753
02754
02755
02756 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
02757 for (const Train *v = this; v != NULL; v = v->Next()) {
02758 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
02759 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
02760
02761
02762 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
02763 }
02764 }
02765
02766
02767
02768 TileIndex crossing = TrainApproachingCrossingTile(this);
02769 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
02770
02771
02772 HideFillingPercent(&this->fill_percent_te_id);
02773 }
02774
02775 pass += Vehicle::Crash(flooded);
02776
02777 this->crash_anim_pos = flooded ? 4000 : 1;
02778 return pass;
02779 }
02780
02787 static uint TrainCrashed(Train *v)
02788 {
02789 uint num = 0;
02790
02791
02792 if (!(v->vehstatus & VS_CRASHED)) {
02793 num = v->Crash();
02794 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
02795 }
02796
02797
02798
02799 v->ReserveTrackUnderConsist();
02800
02801 return num;
02802 }
02803
02804 struct TrainCollideChecker {
02805 Train *v;
02806 uint num;
02807 };
02808
02809 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
02810 {
02811 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
02812
02813
02814 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
02815
02816
02817 Train *coll = Train::From(v)->First();
02818
02819
02820 if (coll == tcc->v) return NULL;
02821
02822 int x_diff = v->x_pos - tcc->v->x_pos;
02823 int y_diff = v->y_pos - tcc->v->y_pos;
02824
02825
02826
02827
02828
02829 uint hash = (y_diff + 7) | (x_diff + 7);
02830 if (hash & ~15) return NULL;
02831
02832
02833 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
02834
02835
02836 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
02837
02838
02839 tcc->num += TrainCrashed(tcc->v);
02840 tcc->num += TrainCrashed(coll);
02841
02842 return NULL;
02843 }
02844
02851 static bool CheckTrainCollision(Train *v)
02852 {
02853
02854 if (v->track == TRACK_BIT_DEPOT) return false;
02855
02856 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
02857
02858 TrainCollideChecker tcc;
02859 tcc.v = v;
02860 tcc.num = 0;
02861
02862
02863 if (v->track == TRACK_BIT_WORMHOLE) {
02864 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
02865 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
02866 } else {
02867 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
02868 }
02869
02870
02871 if (tcc.num == 0) return false;
02872
02873 SetDParam(0, tcc.num);
02874 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
02875 NS_ACCIDENT,
02876 v->index
02877 );
02878
02879 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
02880 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
02881 return true;
02882 }
02883
02884 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
02885 {
02886 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
02887
02888 Train *t = Train::From(v);
02889 DiagDirection exitdir = *(DiagDirection *)data;
02890
02891
02892 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
02893
02894 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
02895
02896 return t;
02897 }
02898
02899 static void TrainController(Train *v, Vehicle *nomove)
02900 {
02901 Train *first = v->First();
02902 Train *prev;
02903 bool direction_changed = false;
02904
02905
02906 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
02907 DiagDirection enterdir = DIAGDIR_BEGIN;
02908 bool update_signals_crossing = false;
02909
02910 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
02911 if (v->track != TRACK_BIT_WORMHOLE) {
02912
02913 if (gp.old_tile == gp.new_tile) {
02914
02915 if (v->track == TRACK_BIT_DEPOT) {
02916
02917 gp.x = v->x_pos;
02918 gp.y = v->y_pos;
02919 } else {
02920
02921
02922
02923 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v)) return;
02924
02925 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
02926 if (HasBit(r, VETS_CANNOT_ENTER)) {
02927 goto invalid_rail;
02928 }
02929 if (HasBit(r, VETS_ENTERED_STATION)) {
02930
02931 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
02932 }
02933 }
02934 } else {
02935
02936
02937
02938 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
02939 assert(IsValidDiagDirection(enterdir));
02940
02941
02942
02943 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
02944 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
02945
02946 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
02947 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
02948
02949 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
02950 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
02951
02952
02953 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
02954 }
02955
02956 if (bits == TRACK_BIT_NONE) goto invalid_rail;
02957
02958
02959
02960 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
02961
02962 TrackBits chosen_track;
02963 if (prev == NULL) {
02964
02965
02966 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
02967 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
02968
02969 if (v->force_proceed != TFP_NONE && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
02970
02971
02972
02973
02974 Trackdir dir = FindFirstTrackdir(trackdirbits);
02975 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
02976 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
02977
02978
02979 v->force_proceed = (v->force_proceed == TFP_SIGNAL) ? TFP_STUCK : TFP_NONE;
02980 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02981 }
02982 }
02983
02984
02985 if ((red_signals & chosen_track) && v->force_proceed == TFP_NONE) {
02986
02987 Trackdir i = FindFirstTrackdir(trackdirbits);
02988
02989
02990 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return;
02991
02992 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
02993 v->cur_speed = 0;
02994 v->subspeed = 0;
02995 v->progress = 255 - 100;
02996 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return;
02997 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
02998 v->cur_speed = 0;
02999 v->subspeed = 0;
03000 v->progress = 255 - 10;
03001 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03002 DiagDirection exitdir = TrackdirToExitdir(i);
03003 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03004
03005 exitdir = ReverseDiagDir(exitdir);
03006
03007
03008 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return;
03009 }
03010 }
03011
03012
03013
03014
03015
03016 if (_settings_game.pf.wait_for_pbs_path == 255 && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03017 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03018 v->wait_counter = 0;
03019 return;
03020 }
03021 goto reverse_train_direction;
03022 } else {
03023 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03024 }
03025 } else {
03026
03027 if (prev->tile == gp.new_tile) {
03028
03029 if (prev->track == TRACK_BIT_WORMHOLE) {
03030
03031
03032 assert(IsTunnel(prev->tile));
03033 chosen_track = bits;
03034 } else {
03035 chosen_track = prev->track;
03036 }
03037 } else {
03038
03039
03040
03041
03042
03043
03044
03045 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03046 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03047 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03048 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03049 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03050 };
03051 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03052 assert(IsValidDiagDirection(exitdir));
03053 chosen_track = _connecting_track[enterdir][exitdir];
03054 }
03055 chosen_track &= bits;
03056 }
03057
03058
03059 assert(
03060 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03061 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03062 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03063
03064
03065 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03066 gp.x = (gp.x & ~0xF) | b[0];
03067 gp.y = (gp.y & ~0xF) | b[1];
03068 Direction chosen_dir = (Direction)b[2];
03069
03070
03071 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03072 if (HasBit(r, VETS_CANNOT_ENTER)) {
03073 goto invalid_rail;
03074 }
03075
03076 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03077 Track track = FindFirstTrack(chosen_track);
03078 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03079 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03080 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03081 MarkTileDirtyByTile(gp.new_tile);
03082 }
03083
03084
03085 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03086
03087 v->tile = gp.new_tile;
03088
03089 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03090 v->First()->RailtypeChanged();
03091 }
03092
03093 v->track = chosen_track;
03094 assert(v->track);
03095 }
03096
03097
03098
03099 update_signals_crossing = true;
03100
03101 if (chosen_dir != v->direction) {
03102 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03103 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03104 DirDiff diff = DirDifference(v->direction, chosen_dir);
03105 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03106 }
03107 direction_changed = true;
03108 v->direction = chosen_dir;
03109 }
03110
03111 if (v->IsFrontEngine()) {
03112 v->wait_counter = 0;
03113
03114
03115 TileIndex crossing = TrainApproachingCrossingTile(v);
03116 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03117
03118
03119 CheckNextTrainTile(v);
03120 }
03121
03122 if (HasBit(r, VETS_ENTERED_STATION)) {
03123
03124 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03125 }
03126 }
03127 } else {
03128
03129
03130
03131 if (!(v->vehstatus & VS_HIDDEN)) {
03132 Train *first = v->First();
03133 first->cur_speed = min(first->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03134 }
03135
03136 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03137
03138 if (v->IsFrontEngine()) {
03139 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03140 CheckNextTrainTile(v);
03141 }
03142 } else {
03143 v->x_pos = gp.x;
03144 v->y_pos = gp.y;
03145 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03146 continue;
03147 }
03148 }
03149
03150
03151 v->UpdateDeltaXY(v->direction);
03152
03153 v->x_pos = gp.x;
03154 v->y_pos = gp.y;
03155
03156
03157 byte old_z = v->UpdateInclination(gp.new_tile != gp.old_tile, false);
03158
03159 if (prev == NULL) {
03160
03161 AffectSpeedByZChange(v, old_z);
03162 }
03163
03164 if (update_signals_crossing) {
03165 if (v->IsFrontEngine()) {
03166 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03167
03168
03169
03170
03171
03172
03173
03174
03175 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03176 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03177 !TryPathReserve(v)) {
03178 MarkTrainAsStuck(v);
03179 }
03180 }
03181 }
03182
03183
03184
03185 if (v->Next() == NULL) {
03186 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03187 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03188 }
03189 }
03190
03191
03192 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03193 }
03194
03195 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03196
03197 return;
03198
03199 invalid_rail:
03200
03201 if (prev != NULL) error("Disconnecting train");
03202
03203 reverse_train_direction:
03204 v->wait_counter = 0;
03205 v->cur_speed = 0;
03206 v->subspeed = 0;
03207 ReverseTrainDirection(v);
03208 }
03209
03216 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03217 {
03218 TrackBits *trackbits = (TrackBits *)data;
03219
03220 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03221 TrackBits train_tbits = Train::From(v)->track;
03222 if (train_tbits == TRACK_BIT_WORMHOLE) {
03223
03224 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03225 } else if (train_tbits != TRACK_BIT_DEPOT) {
03226 *trackbits |= train_tbits;
03227 }
03228 }
03229
03230 return NULL;
03231 }
03232
03240 static void DeleteLastWagon(Train *v)
03241 {
03242 Train *first = v->First();
03243
03244
03245
03246
03247 Train *u = v;
03248 for (; v->Next() != NULL; v = v->Next()) u = v;
03249 u->SetNext(NULL);
03250
03251 if (first != v) {
03252
03253 first->ConsistChanged(false);
03254
03255
03256 if (first->track == TRACK_BIT_DEPOT) {
03257 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03258 }
03259 }
03260
03261
03262 TrackBits trackbits = v->track;
03263 TileIndex tile = v->tile;
03264 Owner owner = v->owner;
03265
03266 delete v;
03267 v = NULL;
03268
03269 if (trackbits == TRACK_BIT_WORMHOLE) {
03270
03271 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03272 }
03273
03274 Track track = TrackBitsToTrack(trackbits);
03275 if (HasReservedTracks(tile, trackbits)) {
03276 UnreserveRailTrack(tile, track);
03277
03278
03279 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03280 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03281
03282
03283 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03284 Track t;
03285 FOR_EACH_SET_TRACK(t, remaining_trackbits) TryReserveRailTrack(tile, t);
03286 }
03287
03288
03289 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03290
03291
03292 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03293 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03294 } else {
03295 SetSignalsOnBothDir(tile, track, owner);
03296 }
03297 }
03298
03299 static void ChangeTrainDirRandomly(Train *v)
03300 {
03301 static const DirDiff delta[] = {
03302 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03303 };
03304
03305 do {
03306
03307 if (!(v->vehstatus & VS_HIDDEN)) {
03308 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03309 v->UpdateDeltaXY(v->direction);
03310 v->cur_image = v->GetImage(v->direction);
03311
03312
03313
03314 if (v->track != TRACK_BIT_WORMHOLE) v->UpdateInclination(false, false);
03315 }
03316 } while ((v = v->Next()) != NULL);
03317 }
03318
03319 static bool HandleCrashedTrain(Train *v)
03320 {
03321 int state = ++v->crash_anim_pos;
03322
03323 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03324 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03325 }
03326
03327 uint32 r;
03328 if (state <= 200 && Chance16R(1, 7, r)) {
03329 int index = (r * 10 >> 16);
03330
03331 Vehicle *u = v;
03332 do {
03333 if (--index < 0) {
03334 r = Random();
03335
03336 CreateEffectVehicleRel(u,
03337 GB(r, 8, 3) + 2,
03338 GB(r, 16, 3) + 2,
03339 GB(r, 0, 3) + 5,
03340 EV_EXPLOSION_SMALL);
03341 break;
03342 }
03343 } while ((u = u->Next()) != NULL);
03344 }
03345
03346 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03347
03348 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03349 bool ret = v->Next() != NULL;
03350 DeleteLastWagon(v);
03351 return ret;
03352 }
03353
03354 return true;
03355 }
03356
03358 static const uint16 _breakdown_speeds[16] = {
03359 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03360 };
03361
03362
03370 static bool TrainApproachingLineEnd(Train *v, bool signal)
03371 {
03372
03373 uint x = v->x_pos & 0xF;
03374 uint y = v->y_pos & 0xF;
03375
03376
03377
03378 switch (v->direction) {
03379 case DIR_N : x = ~x + ~y + 25; break;
03380 case DIR_NW: x = y;
03381 case DIR_NE: x = ~x + 16; break;
03382 case DIR_E : x = ~x + y + 9; break;
03383 case DIR_SE: x = y; break;
03384 case DIR_S : x = x + y - 7; break;
03385 case DIR_W : x = ~y + x + 9; break;
03386 default: break;
03387 }
03388
03389
03390 if (!signal && x + (v->gcache.cached_veh_length + 1) / 2 >= TILE_SIZE) {
03391
03392 v->cur_speed = 0;
03393 ReverseTrainDirection(v);
03394 return false;
03395 }
03396
03397
03398 v->vehstatus |= VS_TRAIN_SLOWING;
03399 uint16 break_speed = _breakdown_speeds[x & 0xF];
03400 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03401
03402 return true;
03403 }
03404
03405
03411 static bool TrainCanLeaveTile(const Train *v)
03412 {
03413
03414 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03415
03416 TileIndex tile = v->tile;
03417
03418
03419 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03420 DiagDirection dir = GetTunnelBridgeDirection(tile);
03421 if (DiagDirToDir(dir) == v->direction) return false;
03422 }
03423
03424
03425 if (IsRailDepotTile(tile)) {
03426 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03427 if (DiagDirToDir(dir) == v->direction) return false;
03428 }
03429
03430 return true;
03431 }
03432
03433
03441 static TileIndex TrainApproachingCrossingTile(const Train *v)
03442 {
03443 assert(v->IsFrontEngine());
03444 assert(!(v->vehstatus & VS_CRASHED));
03445
03446 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03447
03448 DiagDirection dir = TrainExitDir(v->direction, v->track);
03449 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03450
03451
03452 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03453 !CheckCompatibleRail(v, tile)) {
03454 return INVALID_TILE;
03455 }
03456
03457 return tile;
03458 }
03459
03460
03467 static bool TrainCheckIfLineEnds(Train *v)
03468 {
03469
03470
03471 int t = v->breakdown_ctr;
03472 if (t > 1) {
03473 v->vehstatus |= VS_TRAIN_SLOWING;
03474
03475 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03476 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03477 } else {
03478 v->vehstatus &= ~VS_TRAIN_SLOWING;
03479 }
03480
03481 if (!TrainCanLeaveTile(v)) return true;
03482
03483
03484 DiagDirection dir = TrainExitDir(v->direction, v->track);
03485
03486 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03487
03488
03489 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03490 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03491
03492 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03493 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03494
03495
03496
03497
03498 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03499 if (_settings_game.pf.forbid_90_deg) {
03500 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03501 }
03502
03503
03504 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03505 return TrainApproachingLineEnd(v, false);
03506 }
03507
03508
03509 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
03510
03511
03512 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03513
03514 return true;
03515 }
03516
03517
03518 static bool TrainLocoHandler(Train *v, bool mode)
03519 {
03520
03521 if (v->vehstatus & VS_CRASHED) {
03522 return mode ? true : HandleCrashedTrain(v);
03523 }
03524
03525 if (v->force_proceed != TFP_NONE) {
03526 ClrBit(v->flags, VRF_TRAIN_STUCK);
03527 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03528 }
03529
03530
03531 if (v->HandleBreakdown()) return true;
03532
03533 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03534 ReverseTrainDirection(v);
03535 }
03536
03537
03538 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03539
03540 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03541 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03542 v->wait_counter = 0;
03543 v->cur_speed = 0;
03544 v->subspeed = 0;
03545 ClrBit(v->flags, VRF_LEAVING_STATION);
03546 ReverseTrainDirection(v);
03547 return true;
03548 } else if (HasBit(v->flags, VRF_LEAVING_STATION)) {
03549
03550
03551
03552 DiagDirection dir = TrainExitDir(v->direction, v->track);
03553 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
03554
03555 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
03556 TryPathReserve(v, true, true);
03557 }
03558 ClrBit(v->flags, VRF_LEAVING_STATION);
03559 }
03560
03561 v->HandleLoading(mode);
03562
03563 if (v->current_order.IsType(OT_LOADING)) return true;
03564
03565 if (CheckTrainStayInDepot(v)) return true;
03566
03567 if (!mode) v->ShowVisualEffect();
03568
03569
03570 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03571 CheckNextTrainTile(v);
03572 }
03573
03574
03575 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03576 ++v->wait_counter;
03577
03578
03579 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.wait_for_pbs_path < 255;
03580
03581 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == TFP_NONE) return true;
03582 if (!TryPathReserve(v)) {
03583
03584 if (turn_around) ReverseTrainDirection(v);
03585
03586 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03587
03588 if (_settings_client.gui.lost_vehicle_warn && v->owner == _local_company) {
03589 SetDParam(0, v->index);
03590 AddVehicleNewsItem(
03591 STR_NEWS_TRAIN_IS_STUCK,
03592 NS_ADVICE,
03593 v->index
03594 );
03595 }
03596 v->wait_counter = 0;
03597 }
03598
03599 if (v->force_proceed == TFP_NONE) return true;
03600 ClrBit(v->flags, VRF_TRAIN_STUCK);
03601 v->wait_counter = 0;
03602 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03603 }
03604 }
03605
03606 if (v->current_order.IsType(OT_LEAVESTATION)) {
03607 v->current_order.Free();
03608 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03609 return true;
03610 }
03611
03612 int j = v->UpdateSpeed();
03613
03614
03615 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
03616
03617 v->force_proceed = TFP_NONE;
03618 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03619 }
03620
03621 int adv_spd = v->GetAdvanceDistance();
03622 if (j < adv_spd) {
03623
03624 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
03625 } else {
03626 TrainCheckIfLineEnds(v);
03627
03628 for (;;) {
03629 j -= adv_spd;
03630 TrainController(v, NULL);
03631
03632 if (CheckTrainCollision(v)) break;
03633
03634 adv_spd = v->GetAdvanceDistance();
03635
03636
03637 if (j < adv_spd || v->cur_speed == 0) break;
03638
03639 OrderType order_type = v->current_order.GetType();
03640
03641 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
03642 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
03643 IsTileType(v->tile, MP_STATION) &&
03644 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
03645 ProcessOrders(v);
03646 }
03647 }
03648 SetLastSpeed(v, v->cur_speed);
03649 }
03650
03651 for (Train *u = v; u != NULL; u = u->Next()) {
03652 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
03653
03654 u->UpdateViewport(false, false);
03655 }
03656
03657 if (v->progress == 0) v->progress = j;
03658
03659 return true;
03660 }
03661
03662
03663
03664 Money Train::GetRunningCost() const
03665 {
03666 Money cost = 0;
03667 const Train *v = this;
03668
03669 do {
03670 const Engine *e = Engine::Get(v->engine_type);
03671 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
03672
03673 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
03674 if (cost_factor == 0) continue;
03675
03676
03677 if (v->IsMultiheaded()) cost_factor /= 2;
03678
03679 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->grf_prop.grffile);
03680 } while ((v = v->GetNextVehicle()) != NULL);
03681
03682 return cost;
03683 }
03684
03685
03686 bool Train::Tick()
03687 {
03688 this->tick_counter++;
03689
03690 if (this->IsFrontEngine()) {
03691 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
03692
03693 this->current_order_time++;
03694
03695 if (!TrainLocoHandler(this, false)) return false;
03696
03697 return TrainLocoHandler(this, true);
03698 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
03699
03700 if (++this->crash_anim_pos >= 4400) {
03701 delete this;
03702 return false;
03703 }
03704 }
03705
03706 return true;
03707 }
03708
03709 static void CheckIfTrainNeedsService(Train *v)
03710 {
03711 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
03712 if (v->IsInDepot()) {
03713 VehicleServiceInDepot(v);
03714 return;
03715 }
03716
03717 uint max_penalty;
03718 switch (_settings_game.pf.pathfinder_for_trains) {
03719 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
03720 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
03721 default: NOT_REACHED();
03722 }
03723
03724 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
03725
03726 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
03727 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
03728
03729
03730
03731 v->current_order.MakeDummy();
03732 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03733 }
03734 return;
03735 }
03736
03737 DepotID depot = GetDepotIndex(tfdd.tile);
03738
03739 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
03740 v->current_order.GetDestination() != depot &&
03741 !Chance16(3, 16)) {
03742 return;
03743 }
03744
03745 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
03746 v->dest_tile = tfdd.tile;
03747 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03748 }
03749
03750 void Train::OnNewDay()
03751 {
03752 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
03753
03754 if (this->IsFrontEngine()) {
03755 CheckVehicleBreakdown(this);
03756 AgeVehicle(this);
03757
03758 CheckIfTrainNeedsService(this);
03759
03760 CheckOrders(this);
03761
03762
03763 if (this->current_order.IsType(OT_GOTO_STATION)) {
03764 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
03765 if (tile != INVALID_TILE) this->dest_tile = tile;
03766 }
03767
03768 if (this->running_ticks != 0) {
03769
03770 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
03771
03772 this->profit_this_year -= cost.GetCost();
03773 this->running_ticks = 0;
03774
03775 SubtractMoneyFromCompanyFract(this->owner, cost);
03776
03777 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
03778 SetWindowClassesDirty(WC_TRAINS_LIST);
03779 }
03780 } else if (this->IsEngine()) {
03781
03782 AgeVehicle(this);
03783 }
03784 }
03785
03786 Trackdir Train::GetVehicleTrackdir() const
03787 {
03788 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
03789
03790 if (this->track == TRACK_BIT_DEPOT) {
03791
03792 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
03793 }
03794
03795 if (this->track == TRACK_BIT_WORMHOLE) {
03796
03797 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
03798 }
03799
03800 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
03801 }