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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 "viewport_func.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 bool first = true;
00108
00109 FOR_ALL_TRAINS(v) {
00110 if (v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00111 for (const Train *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00112 if (u->track != TRACK_BIT_DEPOT) {
00113 if ((w->track != TRACK_BIT_DEPOT &&
00114 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->gcache.cached_veh_length) ||
00115 (w->track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00116 SetDParam(0, v->index);
00117 SetDParam(1, v->owner);
00118 ShowErrorMessage(STR_BROKEN_VEHICLE_LENGTH, INVALID_STRING_ID, WL_CRITICAL);
00119
00120 if (!_networking && first) {
00121 first = false;
00122 DoCommandP(0, PM_PAUSED_ERROR, 1, CMD_PAUSE);
00123 }
00124
00125 break;
00126 }
00127 }
00128 }
00129 }
00130 }
00131 }
00132
00137 void Train::RailtypeChanged()
00138 {
00139 for (Train *u = this; u != NULL; u = u->Next()) {
00140
00141 u->UpdateVisualEffect(false);
00142 }
00143 this->PowerChanged();
00144 if (this->IsFrontEngine()) this->UpdateAcceleration();
00145 }
00146
00153 void Train::ConsistChanged(bool same_length)
00154 {
00155 uint16 max_speed = UINT16_MAX;
00156
00157 assert(this->IsFrontEngine() || this->IsFreeWagon());
00158
00159 const RailVehicleInfo *rvi_v = RailVehInfo(this->engine_type);
00160 EngineID first_engine = this->IsFrontEngine() ? this->engine_type : INVALID_ENGINE;
00161 this->gcache.cached_total_length = 0;
00162 this->compatible_railtypes = RAILTYPES_NONE;
00163
00164 bool train_can_tilt = true;
00165
00166 for (Train *u = this; u != NULL; u = u->Next()) {
00167 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00168
00169
00170 assert(u->First() == this);
00171
00172
00173 u->gcache.first_engine = this == u ? INVALID_ENGINE : first_engine;
00174 u->railtype = rvi_u->railtype;
00175
00176 if (u->IsEngine()) first_engine = u->engine_type;
00177
00178
00179 u->tcache.user_def_data = rvi_u->user_def_data;
00180 this->InvalidateNewGRFCache();
00181 u->InvalidateNewGRFCache();
00182 }
00183
00184 for (Train *u = this; u != NULL; u = u->Next()) {
00185
00186 u->tcache.user_def_data = GetVehicleProperty(u, PROP_TRAIN_USER_DATA, u->tcache.user_def_data);
00187 this->InvalidateNewGRFCache();
00188 u->InvalidateNewGRFCache();
00189 }
00190
00191 for (Train *u = this; u != NULL; u = u->Next()) {
00192 const Engine *e_u = Engine::Get(u->engine_type);
00193 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00194
00195 if (!HasBit(e_u->info.misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00196
00197
00198 u->tcache.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->gcache.first_engine);
00199
00200
00201 u->colourmap = PAL_NONE;
00202
00203
00204 u->UpdateVisualEffect(true);
00205
00206 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00207 UsesWagonOverride(u) && !HasBit(u->vcache.cached_vis_effect, VE_DISABLE_WAGON_POWER)) {
00208
00209 SetBit(u->flags, VRF_POWEREDWAGON);
00210 } else {
00211 ClrBit(u->flags, VRF_POWEREDWAGON);
00212 }
00213
00214 if (!u->IsArticulatedPart()) {
00215
00216
00217 if (rvi_u->power > 0) {
00218 this->compatible_railtypes |= GetRailTypeInfo(u->railtype)->powered_railtypes;
00219 }
00220
00221
00222
00223 if (HasBit(u->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00224 u->railtype = RAILTYPE_RAIL;
00225 u->compatible_railtypes |= RAILTYPES_RAIL;
00226 }
00227
00228
00229 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00230 uint16 speed = GetVehicleProperty(u, PROP_TRAIN_SPEED, rvi_u->max_speed);
00231 if (speed != 0) max_speed = min(speed, max_speed);
00232 }
00233 }
00234
00235 u->cargo_cap = GetVehicleCapacity(u);
00236
00237
00238 uint16 veh_len = CALLBACK_FAILED;
00239 if (HasBit(e_u->info.callback_mask, CBM_VEHICLE_LENGTH)) {
00240 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00241 }
00242 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00243 veh_len = 8 - Clamp(veh_len, 0, 7);
00244
00245
00246 if (same_length && veh_len != u->gcache.cached_veh_length) RailVehicleLengthChanged(u);
00247
00248
00249 if (!same_length) u->gcache.cached_veh_length = veh_len;
00250
00251 this->gcache.cached_total_length += u->gcache.cached_veh_length;
00252 this->InvalidateNewGRFCache();
00253 u->InvalidateNewGRFCache();
00254 }
00255
00256
00257 this->vcache.cached_max_speed = max_speed;
00258 this->tcache.cached_tilt = train_can_tilt;
00259 this->tcache.cached_max_curve_speed = this->GetCurveSpeedLimit();
00260
00261
00262 this->CargoChanged();
00263
00264 if (this->IsFrontEngine()) {
00265 this->UpdateAcceleration();
00266 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00267 InvalidateWindowData(WC_VEHICLE_REFIT, this->index);
00268 }
00269 }
00270
00281 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length)
00282 {
00283 const Station *st = Station::Get(station_id);
00284 *station_ahead = st->GetPlatformLength(tile, DirToDiagDir(v->direction)) * TILE_SIZE;
00285 *station_length = st->GetPlatformLength(tile) * TILE_SIZE;
00286
00287
00288
00289 OrderStopLocation osl = OSL_PLATFORM_MIDDLE;
00290 if (v->gcache.cached_total_length >= *station_length) {
00291
00292 osl = OSL_PLATFORM_FAR_END;
00293 } else if (v->current_order.IsType(OT_GOTO_STATION) && v->current_order.GetDestination() == station_id) {
00294 osl = v->current_order.GetStopLocation();
00295 }
00296
00297
00298 int stop;
00299 switch (osl) {
00300 default: NOT_REACHED();
00301
00302 case OSL_PLATFORM_NEAR_END:
00303 stop = v->gcache.cached_total_length;
00304 break;
00305
00306 case OSL_PLATFORM_MIDDLE:
00307 stop = *station_length - (*station_length - v->gcache.cached_total_length) / 2;
00308 break;
00309
00310 case OSL_PLATFORM_FAR_END:
00311 stop = *station_length;
00312 break;
00313 }
00314
00315
00316
00317 return stop - (v->gcache.cached_veh_length + 1) / 2;
00318 }
00319
00320
00325 int Train::GetCurveSpeedLimit() const
00326 {
00327 assert(this->First() == this);
00328
00329 static const int absolute_max_speed = UINT16_MAX;
00330 int max_speed = absolute_max_speed;
00331
00332 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return max_speed;
00333
00334 int curvecount[2] = {0, 0};
00335
00336
00337 int numcurve = 0;
00338 int sum = 0;
00339 int pos = 0;
00340 int lastpos = -1;
00341 for (const Vehicle *u = this; u->Next() != NULL; u = u->Next(), pos++) {
00342 Direction this_dir = u->direction;
00343 Direction next_dir = u->Next()->direction;
00344
00345 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00346 if (dirdiff == DIRDIFF_SAME) continue;
00347
00348 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00349 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00350 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00351 if (lastpos != -1) {
00352 numcurve++;
00353 sum += pos - lastpos;
00354 if (pos - lastpos == 1) {
00355 max_speed = 88;
00356 }
00357 }
00358 lastpos = pos;
00359 }
00360
00361
00362 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00363 max_speed = 61;
00364 }
00365 }
00366
00367 if (numcurve > 0 && max_speed > 88) {
00368 if (curvecount[0] == 1 && curvecount[1] == 1) {
00369 max_speed = absolute_max_speed;
00370 } else {
00371 sum /= numcurve;
00372 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00373 }
00374 }
00375
00376 if (max_speed != absolute_max_speed) {
00377
00378 const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00379 max_speed += (max_speed / 2) * rti->curve_speed;
00380
00381 if (this->tcache.cached_tilt) {
00382
00383 max_speed += max_speed / 5;
00384 }
00385 }
00386
00387 return max_speed;
00388 }
00389
00394 int Train::GetCurrentMaxSpeed() const
00395 {
00396 int max_speed = this->tcache.cached_max_curve_speed;
00397 assert(max_speed == this->GetCurveSpeedLimit());
00398
00399 if (IsRailStationTile(this->tile)) {
00400 StationID sid = GetStationIndex(this->tile);
00401 if (this->current_order.ShouldStopAtStation(this, sid)) {
00402 int station_ahead;
00403 int station_length;
00404 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00405
00406
00407
00408 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00409
00410 if (distance_to_go > 0) {
00411 int st_max_speed = 120;
00412
00413 int delta_v = this->cur_speed / (distance_to_go + 1);
00414 if (max_speed > (this->cur_speed - delta_v)) {
00415 st_max_speed = this->cur_speed - (delta_v / 10);
00416 }
00417
00418 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00419 max_speed = min(max_speed, st_max_speed);
00420 }
00421 }
00422 }
00423
00424 for (const Train *u = this; u != NULL; u = u->Next()) {
00425 if (u->track == TRACK_BIT_DEPOT) {
00426 max_speed = min(max_speed, 61);
00427 break;
00428 }
00429 }
00430
00431 return min(max_speed, this->gcache.cached_max_track_speed);
00432 }
00433
00434 void Train::UpdateAcceleration()
00435 {
00436 assert(this->IsFrontEngine());
00437
00438 uint power = this->gcache.cached_power;
00439 uint weight = this->gcache.cached_weight;
00440 assert(weight != 0);
00441 this->acceleration = Clamp(power / weight * 4, 1, 255);
00442 }
00443
00449 int Train::GetDisplayImageWidth(Point *offset) const
00450 {
00451 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00452 int vehicle_pitch = 0;
00453
00454 const Engine *e = Engine::Get(this->engine_type);
00455 if (e->grf_prop.grffile != NULL && is_custom_sprite(e->u.rail.image_index)) {
00456 reference_width = e->grf_prop.grffile->traininfo_vehicle_width;
00457 vehicle_pitch = e->grf_prop.grffile->traininfo_vehicle_pitch;
00458 }
00459
00460 if (offset != NULL) {
00461 offset->x = reference_width / 2;
00462 offset->y = vehicle_pitch;
00463 }
00464 return this->gcache.cached_veh_length * reference_width / 8;
00465 }
00466
00467 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00468 {
00469 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00470 }
00471
00472 SpriteID Train::GetImage(Direction direction) const
00473 {
00474 uint8 spritenum = this->spritenum;
00475 SpriteID sprite;
00476
00477 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00478
00479 if (is_custom_sprite(spritenum)) {
00480 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00481 if (sprite != 0) return sprite;
00482
00483 spritenum = Engine::Get(this->engine_type)->original_image_index;
00484 }
00485
00486 sprite = GetDefaultTrainSprite(spritenum, direction);
00487
00488 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00489
00490 return sprite;
00491 }
00492
00493 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00494 {
00495 const Engine *e = Engine::Get(engine);
00496 Direction dir = rear_head ? DIR_E : DIR_W;
00497 uint8 spritenum = e->u.rail.image_index;
00498
00499 if (is_custom_sprite(spritenum)) {
00500 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00501 if (sprite != 0) {
00502 if (e->grf_prop.grffile != NULL) {
00503 y += e->grf_prop.grffile->traininfo_vehicle_pitch;
00504 }
00505 return sprite;
00506 }
00507
00508 spritenum = Engine::Get(engine)->original_image_index;
00509 }
00510
00511 if (rear_head) spritenum++;
00512
00513 return GetDefaultTrainSprite(spritenum, DIR_W);
00514 }
00515
00516 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal)
00517 {
00518 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00519 int yf = y;
00520 int yr = y;
00521
00522 SpriteID spritef = GetRailIcon(engine, false, yf);
00523 SpriteID spriter = GetRailIcon(engine, true, yr);
00524 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00525 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00526
00527 preferred_x = Clamp(preferred_x, left - real_spritef->x_offs + 14, right - real_spriter->width - real_spriter->x_offs - 15);
00528
00529 DrawSprite(spritef, pal, preferred_x - 14, yf);
00530 DrawSprite(spriter, pal, preferred_x + 15, yr);
00531 } else {
00532 SpriteID sprite = GetRailIcon(engine, false, y);
00533 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00534 preferred_x = Clamp(preferred_x, left - real_sprite->x_offs, right - real_sprite->width - real_sprite->x_offs);
00535 DrawSprite(sprite, pal, preferred_x, y);
00536 }
00537 }
00538
00547 static CommandCost CmdBuildRailWagon(TileIndex tile, DoCommandFlag flags, const Engine *e, Vehicle **ret)
00548 {
00549 const RailVehicleInfo *rvi = &e->u.rail;
00550
00551
00552 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00553
00554 if (flags & DC_EXEC) {
00555 Train *v = new Train();
00556 *ret = v;
00557 v->spritenum = rvi->image_index;
00558
00559 v->engine_type = e->index;
00560 v->gcache.first_engine = INVALID_ENGINE;
00561
00562 DiagDirection dir = GetRailDepotDirection(tile);
00563
00564 v->direction = DiagDirToDir(dir);
00565 v->tile = tile;
00566
00567 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00568 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00569
00570 v->x_pos = x;
00571 v->y_pos = y;
00572 v->z_pos = GetSlopeZ(x, y);
00573 v->owner = _current_company;
00574 v->track = TRACK_BIT_DEPOT;
00575 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00576
00577 v->SetWagon();
00578
00579 v->SetFreeWagon();
00580 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00581
00582 v->cargo_type = e->GetDefaultCargoType();
00583 v->cargo_cap = rvi->capacity;
00584
00585 v->railtype = rvi->railtype;
00586
00587 v->build_year = _cur_year;
00588 v->cur_image = SPR_IMG_QUERY;
00589 v->random_bits = VehicleRandomBits();
00590
00591 v->group_id = DEFAULT_GROUP;
00592
00593 AddArticulatedParts(v);
00594
00595 _new_vehicle_id = v->index;
00596
00597 VehicleMove(v, false);
00598 v->First()->ConsistChanged(false);
00599 UpdateTrainGroupID(v->First());
00600
00601 CheckConsistencyOfArticulatedVehicle(v);
00602
00603
00604 Train *w;
00605 FOR_ALL_TRAINS(w) {
00606 if (w->tile == tile &&
00607 w->IsFreeWagon() &&
00608 w->engine_type == e->index &&
00609 w->First() != v &&
00610 !(w->vehstatus & VS_CRASHED)) {
00611 DoCommand(0, v->index | 1 << 20, w->Last()->index, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00612 break;
00613 }
00614 }
00615 }
00616
00617 return CommandCost();
00618 }
00619
00621 static void NormalizeTrainVehInDepot(const Train *u)
00622 {
00623 const Train *v;
00624 FOR_ALL_TRAINS(v) {
00625 if (v->IsFreeWagon() && v->tile == u->tile &&
00626 v->track == TRACK_BIT_DEPOT) {
00627 if (DoCommand(0, v->index | 1 << 20, u->index, DC_EXEC,
00628 CMD_MOVE_RAIL_VEHICLE).Failed())
00629 break;
00630 }
00631 }
00632 }
00633
00634 static void AddRearEngineToMultiheadedTrain(Train *v)
00635 {
00636 Train *u = new Train();
00637 v->value >>= 1;
00638 u->value = v->value;
00639 u->direction = v->direction;
00640 u->owner = v->owner;
00641 u->tile = v->tile;
00642 u->x_pos = v->x_pos;
00643 u->y_pos = v->y_pos;
00644 u->z_pos = v->z_pos;
00645 u->track = TRACK_BIT_DEPOT;
00646 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00647 u->spritenum = v->spritenum + 1;
00648 u->cargo_type = v->cargo_type;
00649 u->cargo_subtype = v->cargo_subtype;
00650 u->cargo_cap = v->cargo_cap;
00651 u->railtype = v->railtype;
00652 u->engine_type = v->engine_type;
00653 u->build_year = v->build_year;
00654 u->cur_image = SPR_IMG_QUERY;
00655 u->random_bits = VehicleRandomBits();
00656 v->SetMultiheaded();
00657 u->SetMultiheaded();
00658 v->SetNext(u);
00659 VehicleMove(u, false);
00660
00661
00662 v->other_multiheaded_part = u;
00663 u->other_multiheaded_part = v;
00664 }
00665
00675 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, const Engine *e, uint16 data, Vehicle **ret)
00676 {
00677 const RailVehicleInfo *rvi = &e->u.rail;
00678
00679 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(tile, flags, e, ret);
00680
00681
00682
00683 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00684
00685 if (flags & DC_EXEC) {
00686 DiagDirection dir = GetRailDepotDirection(tile);
00687 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00688 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00689
00690 Train *v = new Train();
00691 *ret = v;
00692 v->direction = DiagDirToDir(dir);
00693 v->tile = tile;
00694 v->owner = _current_company;
00695 v->x_pos = x;
00696 v->y_pos = y;
00697 v->z_pos = GetSlopeZ(x, y);
00698 v->track = TRACK_BIT_DEPOT;
00699 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00700 v->spritenum = rvi->image_index;
00701 v->cargo_type = e->GetDefaultCargoType();
00702 v->cargo_cap = rvi->capacity;
00703 v->last_station_visited = INVALID_STATION;
00704
00705 v->engine_type = e->index;
00706 v->gcache.first_engine = INVALID_ENGINE;
00707
00708 v->reliability = e->reliability;
00709 v->reliability_spd_dec = e->reliability_spd_dec;
00710 v->max_age = e->GetLifeLengthInDays();
00711
00712 v->railtype = rvi->railtype;
00713 _new_vehicle_id = v->index;
00714
00715 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00716 v->date_of_last_service = _date;
00717 v->build_year = _cur_year;
00718 v->cur_image = SPR_IMG_QUERY;
00719 v->random_bits = VehicleRandomBits();
00720
00721 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00722
00723 v->group_id = DEFAULT_GROUP;
00724
00725 v->SetFrontEngine();
00726 v->SetEngine();
00727
00728 VehicleMove(v, false);
00729
00730 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00731 AddRearEngineToMultiheadedTrain(v);
00732 } else {
00733 AddArticulatedParts(v);
00734 }
00735
00736 v->ConsistChanged(false);
00737 UpdateTrainGroupID(v);
00738
00739 if (!HasBit(data, 0) && !(flags & DC_AUTOREPLACE)) {
00740 NormalizeTrainVehInDepot(v);
00741 }
00742
00743 CheckConsistencyOfArticulatedVehicle(v);
00744 }
00745
00746 return CommandCost();
00747 }
00748
00749
00750 bool Train::IsInDepot() const
00751 {
00752
00753 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00754
00755
00756 for (const Train *v = this; v != NULL; v = v->Next()) {
00757 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00758 }
00759
00760 return true;
00761 }
00762
00763 bool Train::IsStoppedInDepot() const
00764 {
00765
00766 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00767 return this->IsInDepot();
00768 }
00769
00770 static Train *FindGoodVehiclePos(const Train *src)
00771 {
00772 EngineID eng = src->engine_type;
00773 TileIndex tile = src->tile;
00774
00775 Train *dst;
00776 FOR_ALL_TRAINS(dst) {
00777 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00778
00779 Train *t = dst;
00780 while (t->engine_type == eng) {
00781 t = t->Next();
00782 if (t == NULL) return dst;
00783 }
00784 }
00785 }
00786
00787 return NULL;
00788 }
00789
00791 typedef SmallVector<Train *, 16> TrainList;
00792
00798 static void MakeTrainBackup(TrainList &list, Train *t)
00799 {
00800 for (; t != NULL; t = t->Next()) *list.Append() = t;
00801 }
00802
00807 static void RestoreTrainBackup(TrainList &list)
00808 {
00809
00810 if (list.Length() == 0) return;
00811
00812 Train *prev = NULL;
00813
00814 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00815 Train *t = *iter;
00816 if (prev != NULL) {
00817 prev->SetNext(t);
00818 } else if (t->Previous() != NULL) {
00819
00820 t->Previous()->SetNext(NULL);
00821 }
00822 prev = t;
00823 }
00824 }
00825
00831 static void RemoveFromConsist(Train *part, bool chain = false)
00832 {
00833 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
00834
00835
00836
00837 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
00838
00839
00840 tail->SetNext(NULL);
00841 }
00842
00848 static void InsertInConsist(Train *dst, Train *chain)
00849 {
00850
00851 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
00852
00853 chain->Last()->SetNext(dst->Next());
00854 dst->SetNext(chain);
00855 }
00856
00862 static void NormaliseDualHeads(Train *t)
00863 {
00864 for (; t != NULL; t = t->GetNextVehicle()) {
00865 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
00866
00867
00868 Train *u;
00869 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
00870
00871 if (u == t->other_multiheaded_part) continue;
00872
00873
00874 RemoveFromConsist(t->other_multiheaded_part);
00875
00876 InsertInConsist(u, t->other_multiheaded_part);
00877 }
00878 }
00879
00884 static void NormaliseSubtypes(Train *chain)
00885 {
00886
00887 if (chain == NULL) return;
00888
00889
00890 assert(chain->Previous() == NULL);
00891
00892
00893 if (chain->IsWagon()) {
00894 chain->SetFreeWagon();
00895 } else {
00896 assert(chain->IsEngine());
00897 chain->SetFrontEngine();
00898 }
00899
00900
00901 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
00902 t->ClearFreeWagon();
00903 t->ClearFrontEngine();
00904 }
00905 }
00906
00916 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
00917 {
00918
00919
00920
00921 if ((src != NULL && src->IsEngine() ? 1 : 0) +
00922 (dst != NULL && dst->IsEngine() ? 1 : 0) -
00923 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
00924 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
00925 return CommandCost();
00926 }
00927
00928
00929
00930 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
00931
00932 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00933 }
00934
00940 static CommandCost CheckTrainAttachment(Train *t)
00941 {
00942
00943 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
00944
00945
00946
00947 int allowed_len = _settings_game.vehicle.max_train_length * TILE_SIZE - t->gcache.cached_veh_length;
00948
00949 Train *head = t;
00950 Train *prev = t;
00951
00952
00953 t = t->Next();
00954 prev->SetNext(NULL);
00955
00956
00957 head->InvalidateNewGRFCache();
00958
00959 while (t != NULL) {
00960 allowed_len -= t->gcache.cached_veh_length;
00961
00962 Train *next = t->Next();
00963
00964
00965
00966 t->SetNext(NULL);
00967
00968
00969 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
00970
00971 EngineID first_engine = t->gcache.first_engine;
00972 t->gcache.first_engine = INVALID_ENGINE;
00973
00974
00975
00976 t->InvalidateNewGRFCache();
00977
00978 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
00979
00980
00981 t->gcache.first_engine = first_engine;
00982
00983
00984 t->InvalidateNewGRFCache();
00985 head->InvalidateNewGRFCache();
00986
00987 if (callback != CALLBACK_FAILED) {
00988
00989 StringID error = STR_NULL;
00990
00991 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00992 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(head->engine_type), 0xD000 + callback);
00993
00994 if (error != STR_NULL) return_cmd_error(error);
00995 }
00996 }
00997
00998
00999 prev->SetNext(t);
01000 prev = t;
01001 t = next;
01002 }
01003
01004 if (allowed_len < 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01005 return CommandCost();
01006 }
01007
01018 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
01019 {
01020
01021 CommandCost ret = CheckTrainAttachment(src);
01022 if (ret.Failed()) return ret;
01023 ret = CheckTrainAttachment(dst);
01024 if (ret.Failed()) return ret;
01025
01026
01027 return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
01028 }
01029
01038 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01039 {
01040
01041 if (*src_head == *dst_head) {
01042
01043
01044 *dst_head = NULL;
01045 } else if (*dst_head == NULL) {
01046
01047
01048 *dst_head = src;
01049 }
01050
01051 if (src == *src_head) {
01052
01053
01054
01055
01056
01057
01058 *src_head = move_chain ? NULL :
01059 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01060 }
01061
01062
01063
01064
01065 RemoveFromConsist(src, move_chain);
01066 if (*dst_head != src) InsertInConsist(dst, src);
01067
01068
01069
01070 NormaliseDualHeads(*src_head);
01071 NormaliseDualHeads(*dst_head);
01072 }
01073
01079 static void NormaliseTrainHead(Train *head)
01080 {
01081
01082 if (head == NULL) return;
01083
01084
01085 head->ConsistChanged(false);
01086 UpdateTrainGroupID(head);
01087
01088
01089 if (!head->IsFrontEngine()) return;
01090
01091
01092 InvalidateWindowData(WC_VEHICLE_REFIT, head->index);
01093 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, VVW_WIDGET_REFIT_VEH);
01094
01095
01096 if (head->unitnumber != 0) return;
01097 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01098 }
01099
01112 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01113 {
01114 VehicleID s = GB(p1, 0, 20);
01115 VehicleID d = GB(p2, 0, 20);
01116 bool move_chain = HasBit(p1, 20);
01117
01118 Train *src = Train::GetIfValid(s);
01119 if (src == NULL) return CMD_ERROR;
01120
01121 CommandCost ret = CheckOwnership(src->owner);
01122 if (ret.Failed()) return ret;
01123
01124
01125 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01126
01127
01128 Train *dst;
01129 if (d == INVALID_VEHICLE) {
01130 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01131 } else {
01132 dst = Train::GetIfValid(d);
01133 if (dst == NULL) return CMD_ERROR;
01134
01135 CommandCost ret = CheckOwnership(dst->owner);
01136 if (ret.Failed()) return ret;
01137
01138
01139 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01140 }
01141
01142
01143 src = src->GetFirstEnginePart();
01144 if (dst != NULL) {
01145 dst = dst->GetFirstEnginePart();
01146 }
01147
01148
01149 if (src == dst) return CommandCost();
01150
01151
01152 Train *src_head = src->First();
01153 Train *dst_head;
01154 if (dst != NULL) {
01155 dst_head = dst->First();
01156 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01157
01158 dst = dst->GetLastEnginePart();
01159 } else {
01160 dst_head = NULL;
01161 }
01162
01163 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01164
01165
01166 if (move_chain && src_head == dst_head) return CommandCost();
01167
01168
01169 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01170
01171
01172 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01173
01174
01175 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01176
01177
01178
01179 TrainList original_src;
01180 TrainList original_dst;
01181
01182 MakeTrainBackup(original_src, src_head);
01183 MakeTrainBackup(original_dst, dst_head);
01184
01185
01186
01187
01188 Train *original_src_head = src_head;
01189 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01190
01191
01192 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01193
01194 if ((flags & DC_AUTOREPLACE) == 0) {
01195
01196
01197
01198 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
01199 if (ret.Failed()) {
01200
01201 RestoreTrainBackup(original_src);
01202 RestoreTrainBackup(original_dst);
01203 return ret;
01204 }
01205 }
01206
01207
01208 if (flags & DC_EXEC) {
01209
01210 NormaliseSubtypes(src_head);
01211 NormaliseSubtypes(dst_head);
01212
01213
01214
01215
01216
01217
01218
01219
01220
01221
01222
01223
01224
01225
01226
01227
01228
01229
01230
01231
01232
01233 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01234
01235 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01236 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01237 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01238 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01239 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01240
01241
01242
01243 if (dst_head != NULL && dst_head != src && (src_head == NULL || !src_head->IsFrontEngine())) {
01244 DecreaseGroupNumVehicle(src->group_id);
01245 }
01246
01247
01248
01249 if (dst_head == NULL && !src_head->IsFrontEngine()) {
01250 DecreaseGroupNumVehicle(src->group_id);
01251 }
01252
01253
01254
01255 DeleteVehicleOrders(src);
01256 RemoveVehicleFromGroup(src);
01257 src->unitnumber = 0;
01258 }
01259
01260
01261
01262 if (original_src_head == src && dst_head == src) {
01263 IncreaseGroupNumVehicle(src->group_id);
01264 }
01265
01266
01267
01268 if (original_src_head != src && dst_head == src) {
01269 SetTrainGroupID(src, DEFAULT_GROUP);
01270 }
01271
01272
01273 NormaliseTrainHead(src_head);
01274 NormaliseTrainHead(dst_head);
01275
01276
01277 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01278 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01279 } else {
01280
01281 RestoreTrainBackup(original_src);
01282 RestoreTrainBackup(original_dst);
01283 }
01284
01285 return CommandCost();
01286 }
01287
01299 CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint32 user)
01300 {
01301
01302 Window *w = NULL;
01303
01304
01305 bool sell_chain = HasBit(data, 0);
01306
01307 Train *v = Train::From(t)->GetFirstEnginePart();
01308 Train *first = v->First();
01309
01310 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01311
01312
01313
01314 TrainList original;
01315 MakeTrainBackup(original, first);
01316
01317
01318 Train *new_head = first;
01319 Train *sell_head = NULL;
01320
01321
01322 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01323
01324
01325 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
01326 if (ret.Failed()) {
01327
01328 RestoreTrainBackup(original);
01329 return ret;
01330 }
01331
01332 CommandCost cost(EXPENSES_NEW_VEHICLES);
01333 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01334
01335 if (first->orders.list == NULL && !OrderList::CanAllocateItem()) {
01336 return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
01337 }
01338
01339
01340 if (flags & DC_EXEC) {
01341
01342 NormaliseSubtypes(new_head);
01343
01344 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01345
01346
01347 new_head->orders.list = first->orders.list;
01348 new_head->AddToShared(first);
01349 DeleteVehicleOrders(first);
01350
01351
01352 new_head->CopyVehicleConfigAndStatistics(first);
01353 IncreaseGroupNumVehicle(new_head->group_id);
01354
01355
01356 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01357 } else if (v->IsPrimaryVehicle() && data & (MAKE_ORDER_BACKUP_FLAG >> 20)) {
01358 OrderBackup::Backup(v, user);
01359 }
01360
01361
01362 NormaliseTrainHead(new_head);
01363
01364
01365 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01366 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01367
01368
01369 delete sell_head;
01370 } else {
01371
01372 RestoreTrainBackup(original);
01373 }
01374
01375 return cost;
01376 }
01377
01378 void Train::UpdateDeltaXY(Direction direction)
01379 {
01380 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01381 static const uint32 _delta_xy_table[8] = {
01382 MKIT(3, 3, -1, -1),
01383 MKIT(3, 7, -1, -3),
01384 MKIT(3, 3, -1, -1),
01385 MKIT(7, 3, -3, -1),
01386 MKIT(3, 3, -1, -1),
01387 MKIT(3, 7, -1, -3),
01388 MKIT(3, 3, -1, -1),
01389 MKIT(7, 3, -3, -1),
01390 };
01391 #undef MKIT
01392
01393 uint32 x = _delta_xy_table[direction];
01394 this->x_offs = GB(x, 0, 8);
01395 this->y_offs = GB(x, 8, 8);
01396 this->x_extent = GB(x, 16, 8);
01397 this->y_extent = GB(x, 24, 8);
01398 this->z_extent = 6;
01399 }
01400
01402 static void MarkTrainAsStuck(Train *v)
01403 {
01404 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01405
01406 SetBit(v->flags, VRF_TRAIN_STUCK);
01407
01408 v->wait_counter = 0;
01409
01410
01411 v->cur_speed = 0;
01412 v->subspeed = 0;
01413 v->SetLastSpeed();
01414
01415 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01416 }
01417 }
01418
01419 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01420 {
01421 uint16 flag1 = *swap_flag1;
01422 uint16 flag2 = *swap_flag2;
01423
01424
01425 ClrBit(*swap_flag1, GVF_GOINGUP_BIT);
01426 ClrBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01427 ClrBit(*swap_flag2, GVF_GOINGUP_BIT);
01428 ClrBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01429
01430
01431 if (HasBit(flag1, GVF_GOINGUP_BIT)) {
01432 SetBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01433 } else if (HasBit(flag1, GVF_GOINGDOWN_BIT)) {
01434 SetBit(*swap_flag2, GVF_GOINGUP_BIT);
01435 }
01436 if (HasBit(flag2, GVF_GOINGUP_BIT)) {
01437 SetBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01438 } else if (HasBit(flag2, GVF_GOINGDOWN_BIT)) {
01439 SetBit(*swap_flag1, GVF_GOINGUP_BIT);
01440 }
01441 }
01442
01447 static void UpdateStatusAfterSwap(Train *v)
01448 {
01449
01450 if (v->track != TRACK_BIT_DEPOT) v->direction = ReverseDir(v->direction);
01451
01452
01453 if (v->track != TRACK_BIT_WORMHOLE) {
01454 VehicleEnterTile(v, v->tile, v->x_pos, v->y_pos);
01455 } else {
01456
01457
01458
01459
01460 TileIndex vt = TileVirtXY(v->x_pos, v->y_pos);
01461 if (IsTileType(vt, MP_TUNNELBRIDGE)) {
01462 VehicleEnterTile(v, vt, v->x_pos, v->y_pos);
01463 if (v->track != TRACK_BIT_WORMHOLE && IsBridgeTile(v->tile)) {
01464
01465
01466
01467 v->UpdateInclination(true, true);
01468 return;
01469 }
01470 }
01471 }
01472
01473 v->UpdateViewport(true, true);
01474 }
01475
01476 static void ReverseTrainSwapVeh(Train *v, int l, int r)
01477 {
01478 Train *a, *b;
01479
01480
01481 for (a = v; l != 0; l--) a = a->Next();
01482 for (b = v; r != 0; r--) b = b->Next();
01483
01484 if (a != b) {
01485
01486 {
01487 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus & VS_HIDDEN);
01488 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus & VS_HIDDEN);
01489 a->vehstatus = tmp;
01490 }
01491
01492 Swap(a->track, b->track);
01493 Swap(a->direction, b->direction);
01494 Swap(a->x_pos, b->x_pos);
01495 Swap(a->y_pos, b->y_pos);
01496 Swap(a->tile, b->tile);
01497 Swap(a->z_pos, b->z_pos);
01498
01499 SwapTrainFlags(&a->gv_flags, &b->gv_flags);
01500
01501 UpdateStatusAfterSwap(a);
01502 UpdateStatusAfterSwap(b);
01503 } else {
01504
01505
01506
01507 SwapTrainFlags(&a->gv_flags, &a->gv_flags);
01508 UpdateStatusAfterSwap(a);
01509 }
01510
01511
01512 v->RailtypeChanged();
01513 }
01514
01515
01521 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01522 {
01523 return (v->type == VEH_TRAIN) ? v : NULL;
01524 }
01525
01526
01533 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01534 {
01535 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01536
01537 Train *t = Train::From(v);
01538 if (!t->IsFrontEngine()) return NULL;
01539
01540 TileIndex tile = *(TileIndex *)data;
01541
01542 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01543
01544 return t;
01545 }
01546
01547
01554 static bool TrainApproachingCrossing(TileIndex tile)
01555 {
01556 assert(IsLevelCrossingTile(tile));
01557
01558 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01559 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01560
01561 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01562
01563 dir = ReverseDiagDir(dir);
01564 tile_from = tile + TileOffsByDiagDir(dir);
01565
01566 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01567 }
01568
01569
01576 void UpdateLevelCrossing(TileIndex tile, bool sound)
01577 {
01578 assert(IsLevelCrossingTile(tile));
01579
01580
01581 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01582
01583 if (new_state != IsCrossingBarred(tile)) {
01584 if (new_state && sound) {
01585 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01586 }
01587 SetCrossingBarred(tile, new_state);
01588 MarkTileDirtyByTile(tile);
01589 }
01590 }
01591
01592
01598 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01599 {
01600 if (!IsCrossingBarred(tile)) {
01601 BarCrossing(tile);
01602 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01603 MarkTileDirtyByTile(tile);
01604 }
01605 }
01606
01607
01613 static void AdvanceWagonsBeforeSwap(Train *v)
01614 {
01615 Train *base = v;
01616 Train *first = base;
01617 Train *last = v->Last();
01618 uint length = CountVehiclesInChain(v);
01619
01620 while (length > 2) {
01621 last = last->Previous();
01622 first = first->Next();
01623
01624 int differential = base->gcache.cached_veh_length - last->gcache.cached_veh_length;
01625
01626
01627
01628 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01629
01630 base = first;
01631 length -= 2;
01632 }
01633 }
01634
01635
01641 static void AdvanceWagonsAfterSwap(Train *v)
01642 {
01643
01644 Train *dep = v;
01645 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01646 dep = dep->Next();
01647 }
01648
01649 Train *leave = dep->Next();
01650
01651 if (leave != NULL) {
01652
01653 int d = TicksToLeaveDepot(dep);
01654
01655 if (d <= 0) {
01656 leave->vehstatus &= ~VS_HIDDEN;
01657 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01658 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01659 }
01660 } else {
01661 dep = NULL;
01662 }
01663
01664 Train *base = v;
01665 Train *first = base;
01666 Train *last = v->Last();
01667 uint length = CountVehiclesInChain(v);
01668
01669
01670
01671 bool nomove = (dep == NULL);
01672
01673 while (length > 2) {
01674
01675
01676 if (base == dep) break;
01677
01678
01679 if (last == dep) nomove = true;
01680
01681 last = last->Previous();
01682 first = first->Next();
01683
01684 int differential = last->gcache.cached_veh_length - base->gcache.cached_veh_length;
01685
01686
01687 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01688
01689 base = first;
01690 length -= 2;
01691 }
01692 }
01693
01694
01695 static void ReverseTrainDirection(Train *v)
01696 {
01697 if (IsRailDepotTile(v->tile)) {
01698 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01699 }
01700
01701
01702 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01703
01704
01705 TileIndex crossing = TrainApproachingCrossingTile(v);
01706
01707
01708 int r = CountVehiclesInChain(v) - 1;
01709
01710 AdvanceWagonsBeforeSwap(v);
01711
01712
01713 int l = 0;
01714 do {
01715 ReverseTrainSwapVeh(v, l++, r--);
01716 } while (l <= r);
01717
01718 AdvanceWagonsAfterSwap(v);
01719
01720 if (IsRailDepotTile(v->tile)) {
01721 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01722 }
01723
01724 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01725
01726 ClrBit(v->flags, VRF_REVERSING);
01727
01728
01729 v->ConsistChanged(true);
01730
01731
01732 for (Train *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01733
01734
01735 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01736
01737
01738 crossing = TrainApproachingCrossingTile(v);
01739 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01740
01741
01742 if (v->track == TRACK_BIT_DEPOT) {
01743
01744 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01745 ClrBit(v->flags, VRF_TRAIN_STUCK);
01746 return;
01747 }
01748
01749
01750
01751 DiagDirection dir = TrainExitDir(v->direction, v->track);
01752 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01753
01754 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01755
01756
01757 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01758 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01759 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01760
01761 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01762 if (TryPathReserve(v, false, first_tile_okay)) {
01763
01764 CheckNextTrainTile(v);
01765 } else if (v->current_order.GetType() != OT_LOADING) {
01766
01767 MarkTrainAsStuck(v);
01768 }
01769 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01770
01771 ClrBit(v->flags, VRF_TRAIN_STUCK);
01772 v->wait_counter = 0;
01773 }
01774 }
01775
01785 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01786 {
01787 Train *v = Train::GetIfValid(p1);
01788 if (v == NULL) return CMD_ERROR;
01789
01790 CommandCost ret = CheckOwnership(v->owner);
01791 if (ret.Failed()) return ret;
01792
01793 if (p2 != 0) {
01794
01795
01796 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01797 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01798 }
01799 if (!HasBit(EngInfo(v->engine_type)->misc_flags, EF_RAIL_FLIPS)) return CMD_ERROR;
01800
01801 Train *front = v->First();
01802
01803 if (!front->IsStoppedInDepot()) {
01804 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01805 }
01806
01807 if (flags & DC_EXEC) {
01808 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01809
01810 front->ConsistChanged(false);
01811 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
01812 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
01813 SetWindowDirty(WC_VEHICLE_VIEW, front->index);
01814 SetWindowClassesDirty(WC_TRAINS_LIST);
01815 }
01816 } else {
01817
01818 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01819
01820 if (flags & DC_EXEC) {
01821
01822 if (v->current_order.IsType(OT_LOADING)) {
01823 const Vehicle *last = v;
01824 while (last->Next() != NULL) last = last->Next();
01825
01826
01827 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01828 v->LeaveStation();
01829 }
01830 }
01831
01832
01833 v->force_proceed = TFP_NONE;
01834 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01835
01836 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01837 ToggleBit(v->flags, VRF_REVERSING);
01838 } else {
01839 v->cur_speed = 0;
01840 v->SetLastSpeed();
01841 HideFillingPercent(&v->fill_percent_te_id);
01842 ReverseTrainDirection(v);
01843 }
01844 }
01845 }
01846 return CommandCost();
01847 }
01848
01858 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01859 {
01860 Train *t = Train::GetIfValid(p1);
01861 if (t == NULL) return CMD_ERROR;
01862
01863 CommandCost ret = CheckOwnership(t->owner);
01864 if (ret.Failed()) return ret;
01865
01866
01867 if (flags & DC_EXEC) {
01868
01869
01870
01871
01872
01873 t->force_proceed = t->force_proceed == TFP_SIGNAL ? TFP_NONE : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? TFP_STUCK : TFP_SIGNAL;
01874 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
01875 }
01876
01877 return CommandCost();
01878 }
01879
01884 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
01885 {
01886 assert(!(v->vehstatus & VS_CRASHED));
01887
01888 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
01889
01890 PBSTileInfo origin = FollowTrainReservation(v);
01891 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
01892
01893 switch (_settings_game.pf.pathfinder_for_trains) {
01894 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
01895 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
01896
01897 default: NOT_REACHED();
01898 }
01899 }
01900
01901 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
01902 {
01903 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
01904 if (tfdd.best_length == UINT_MAX) return false;
01905
01906 if (location != NULL) *location = tfdd.tile;
01907 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
01908 if (reverse != NULL) *reverse = tfdd.reverse;
01909
01910 return true;
01911 }
01912
01913 void Train::PlayLeaveStationSound() const
01914 {
01915 static const SoundFx sfx[] = {
01916 SND_04_TRAIN,
01917 SND_0A_TRAIN_HORN,
01918 SND_0A_TRAIN_HORN,
01919 SND_47_MAGLEV_2,
01920 SND_41_MAGLEV
01921 };
01922
01923 if (PlayVehicleSound(this, VSE_START)) return;
01924
01925 EngineID engtype = this->engine_type;
01926 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
01927 }
01928
01930 static void CheckNextTrainTile(Train *v)
01931 {
01932
01933 if (_settings_game.pf.path_backoff_interval == 255) return;
01934
01935
01936 if (v->track == TRACK_BIT_DEPOT) return;
01937
01938 switch (v->current_order.GetType()) {
01939
01940 case OT_GOTO_DEPOT:
01941 if (v->tile == v->dest_tile) return;
01942 break;
01943
01944 case OT_GOTO_WAYPOINT:
01945
01946 if (IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
01947 break;
01948
01949 case OT_NOTHING:
01950 case OT_LEAVESTATION:
01951 case OT_LOADING:
01952
01953 if (v->GetNumOrders() > 0) return;
01954 break;
01955
01956 default:
01957 break;
01958 }
01959
01960 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
01961
01962 Trackdir td = v->GetVehicleTrackdir();
01963
01964
01965 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
01966 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
01967 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
01968
01969 CFollowTrackRail ft(v);
01970 if (!ft.Follow(v->tile, td)) return;
01971
01972 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
01973
01974 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
01975 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
01976
01977 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
01978 if (_settings_game.pf.forbid_90_deg) {
01979 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
01980 }
01981 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
01982 }
01983 }
01984 }
01985 }
01986
01987 static bool CheckTrainStayInDepot(Train *v)
01988 {
01989
01990 for (const Train *u = v; u != NULL; u = u->Next()) {
01991 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
01992 }
01993
01994
01995 if (v->gcache.cached_power == 0) {
01996 v->vehstatus |= VS_STOPPED;
01997 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
01998 return true;
01999 }
02000
02001 SigSegState seg_state;
02002
02003 if (v->force_proceed == TFP_NONE) {
02004
02005 if (++v->wait_counter < 37) {
02006 SetWindowClassesDirty(WC_TRAINS_LIST);
02007 return true;
02008 }
02009
02010 v->wait_counter = 0;
02011
02012 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02013 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02014
02015 SetWindowClassesDirty(WC_TRAINS_LIST);
02016 return true;
02017 }
02018 } else {
02019 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02020 }
02021
02022
02023 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02024
02025 if (HasDepotReservation(v->tile)) return true;
02026 SetDepotReservation(v->tile, true);
02027 VehicleEnterDepot(v);
02028 return true;
02029 }
02030
02031
02032 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == TFP_NONE) {
02033
02034 SetWindowClassesDirty(WC_TRAINS_LIST);
02035 MarkTrainAsStuck(v);
02036 return true;
02037 }
02038
02039 SetDepotReservation(v->tile, true);
02040 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02041
02042 VehicleServiceInDepot(v);
02043 SetWindowClassesDirty(WC_TRAINS_LIST);
02044 v->PlayLeaveStationSound();
02045
02046 v->track = TRACK_BIT_X;
02047 if (v->direction & 2) v->track = TRACK_BIT_Y;
02048
02049 v->vehstatus &= ~VS_HIDDEN;
02050 v->cur_speed = 0;
02051
02052 v->UpdateDeltaXY(v->direction);
02053 v->cur_image = v->GetImage(v->direction);
02054 VehicleMove(v, false);
02055 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02056 v->UpdateAcceleration();
02057 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02058
02059 return false;
02060 }
02061
02063 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02064 {
02065 DiagDirection dir = TrackdirToExitdir(track_dir);
02066
02067 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02068
02069 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02070 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02071
02072 if (TunnelBridgeIsFree(tile, end, v).Succeeded()) {
02073
02074 SetTunnelBridgeReservation(tile, false);
02075 SetTunnelBridgeReservation(end, false);
02076
02077 if (_settings_client.gui.show_track_reservation) {
02078 MarkTileDirtyByTile(tile);
02079 MarkTileDirtyByTile(end);
02080 }
02081 }
02082 }
02083 } else if (IsRailStationTile(tile)) {
02084 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02085
02086
02087 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02088 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02089 }
02090 } else {
02091
02092 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02093 }
02094 }
02095
02097 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02098 {
02099 assert(v->IsFrontEngine());
02100
02101 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02102 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02103 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02104 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02105
02106
02107 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02108
02109 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02110 while (ft.Follow(tile, td)) {
02111 tile = ft.m_new_tile;
02112 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02113 td = RemoveFirstTrackdir(&bits);
02114 assert(bits == TRACKDIR_BIT_NONE);
02115
02116 if (!IsValidTrackdir(td)) break;
02117
02118 if (IsTileType(tile, MP_RAILWAY)) {
02119 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02120
02121 UnreserveRailTrack(tile, TrackdirToTrack(td));
02122 break;
02123 }
02124 if (HasPbsSignalOnTrackdir(tile, td)) {
02125 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02126
02127 break;
02128 } else {
02129
02130 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02131 MarkTileDirtyByTile(tile);
02132 }
02133 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02134 break;
02135 }
02136 }
02137
02138
02139 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);
02140
02141 free_tile = true;
02142 }
02143 }
02144
02145 static const byte _initial_tile_subcoord[6][4][3] = {
02146 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02147 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02148 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02149 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02150 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02151 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02152 };
02153
02166 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool &path_found, bool do_track_reservation, PBSTileInfo *dest)
02167 {
02168 switch (_settings_game.pf.pathfinder_for_trains) {
02169 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02170 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02171
02172 default: NOT_REACHED();
02173 }
02174 }
02175
02181 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02182 {
02183 PBSTileInfo origin = FollowTrainReservation(v);
02184
02185 CFollowTrackRail ft(v);
02186
02187 TileIndex tile = origin.tile;
02188 Trackdir cur_td = origin.trackdir;
02189 while (ft.Follow(tile, cur_td)) {
02190 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02191
02192 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02193 }
02194
02195 if (_settings_game.pf.forbid_90_deg) {
02196 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02197 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02198 }
02199
02200
02201 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02202 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02203
02204
02205
02206
02207
02208
02209 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02210
02211
02212
02213 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02214
02215
02216 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02217 if (enterdir) *enterdir = ft.m_exitdir;
02218 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02219 }
02220
02221 tile = ft.m_new_tile;
02222 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02223
02224 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02225 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02226 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02227
02228 return PBSTileInfo(tile, cur_td, true);
02229 }
02230
02231 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02232 }
02233
02234 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02235
02236 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02237 }
02238
02239
02240 tile = origin.tile;
02241 cur_td = origin.trackdir;
02242 TileIndex stopped = ft.m_old_tile;
02243 Trackdir stopped_td = ft.m_old_td;
02244 while (tile != stopped || cur_td != stopped_td) {
02245 if (!ft.Follow(tile, cur_td)) break;
02246
02247 if (_settings_game.pf.forbid_90_deg) {
02248 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02249 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02250 }
02251 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02252
02253 tile = ft.m_new_tile;
02254 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02255
02256 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02257 }
02258
02259
02260 return PBSTileInfo();
02261 }
02262
02273 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02274 {
02275 switch (_settings_game.pf.pathfinder_for_trains) {
02276 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02277 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02278
02279 default: NOT_REACHED();
02280 }
02281 }
02282
02284 class VehicleOrderSaver
02285 {
02286 private:
02287 Vehicle *v;
02288 Order old_order;
02289 TileIndex old_dest_tile;
02290 StationID old_last_station_visited;
02291 VehicleOrderID index;
02292
02293 public:
02294 VehicleOrderSaver(Vehicle *_v) :
02295 v(_v),
02296 old_order(_v->current_order),
02297 old_dest_tile(_v->dest_tile),
02298 old_last_station_visited(_v->last_station_visited),
02299 index(_v->cur_real_order_index)
02300 {
02301 }
02302
02303 ~VehicleOrderSaver()
02304 {
02305 this->v->current_order = this->old_order;
02306 this->v->dest_tile = this->old_dest_tile;
02307 this->v->last_station_visited = this->old_last_station_visited;
02308 }
02309
02315 bool SwitchToNextOrder(bool skip_first)
02316 {
02317 if (this->v->GetNumOrders() == 0) return false;
02318
02319 if (skip_first) ++this->index;
02320
02321 int conditional_depth = 0;
02322
02323 do {
02324
02325 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02326
02327 Order *order = this->v->GetOrder(this->index);
02328 assert(order != NULL);
02329
02330 switch (order->GetType()) {
02331 case OT_GOTO_DEPOT:
02332
02333 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02334 case OT_GOTO_STATION:
02335 case OT_GOTO_WAYPOINT:
02336 this->v->current_order = *order;
02337 UpdateOrderDest(this->v, order);
02338 return true;
02339 case OT_CONDITIONAL: {
02340 if (conditional_depth > this->v->GetNumOrders()) return false;
02341 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02342 if (next != INVALID_VEH_ORDER_ID) {
02343 conditional_depth++;
02344 this->index = next;
02345
02346 continue;
02347 }
02348 break;
02349 }
02350 default:
02351 break;
02352 }
02353
02354
02355 ++this->index;
02356 } while (this->index != this->v->cur_real_order_index);
02357
02358 return false;
02359 }
02360 };
02361
02362
02363 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02364 {
02365 Track best_track = INVALID_TRACK;
02366 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02367 bool changed_signal = false;
02368
02369 assert((tracks & ~TRACK_BIT_MASK) == 0);
02370
02371 if (got_reservation != NULL) *got_reservation = false;
02372
02373
02374 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02375
02376 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02377
02378
02379 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02380 Track track = FindFirstTrack(tracks);
02381
02382 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02383 do_track_reservation = true;
02384 changed_signal = true;
02385 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02386 } else if (!do_track_reservation) {
02387 return track;
02388 }
02389 best_track = track;
02390 }
02391
02392 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02393 DiagDirection dest_enterdir = enterdir;
02394 if (do_track_reservation) {
02395
02396
02397
02398 CheckIfTrainNeedsService(v);
02399 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02400
02401 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02402 if (res_dest.tile == INVALID_TILE) {
02403
02404 if (mark_stuck) MarkTrainAsStuck(v);
02405 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02406 return FindFirstTrack(tracks);
02407 }
02408 }
02409
02410
02411 VehicleOrderSaver orders(v);
02412
02413
02414
02415
02416
02417
02418
02419 if (v->current_order.IsType(OT_LEAVESTATION)) {
02420 orders.SwitchToNextOrder(false);
02421 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02422 v->current_order.IsType(OT_GOTO_STATION) ?
02423 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02424 v->tile == v->dest_tile))) {
02425 orders.SwitchToNextOrder(true);
02426 }
02427
02428 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02429
02430 bool path_found = true;
02431 TileIndex new_tile = res_dest.tile;
02432
02433 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, path_found, do_track_reservation, &res_dest);
02434 if (new_tile == tile) best_track = next_track;
02435 v->HandlePathfindingResult(path_found);
02436 }
02437
02438
02439 if (!do_track_reservation) return best_track;
02440
02441
02442 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02443 if (mark_stuck) MarkTrainAsStuck(v);
02444 FreeTrainTrackReservation(v);
02445 return best_track;
02446 }
02447
02448
02449 if (res_dest.tile == INVALID_TILE) {
02450
02451 PBSTileInfo origin = FollowTrainReservation(v);
02452 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02453 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02454 best_track = FindFirstTrack(res);
02455 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02456 if (got_reservation != NULL) *got_reservation = true;
02457 if (changed_signal) MarkTileDirtyByTile(tile);
02458 } else {
02459 FreeTrainTrackReservation(v);
02460 if (mark_stuck) MarkTrainAsStuck(v);
02461 }
02462 return best_track;
02463 }
02464
02465 if (got_reservation != NULL) *got_reservation = true;
02466
02467
02468 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02469
02470 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02471 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02472 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02473 if (_settings_game.pf.forbid_90_deg) {
02474 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02475 }
02476
02477
02478 if (orders.SwitchToNextOrder(true)) {
02479 PBSTileInfo cur_dest;
02480 bool path_found;
02481 DoTrainPathfind(v, next_tile, exitdir, reachable, path_found, true, &cur_dest);
02482 if (cur_dest.tile != INVALID_TILE) {
02483 res_dest = cur_dest;
02484 if (res_dest.okay) continue;
02485
02486 FreeTrainTrackReservation(v);
02487 if (mark_stuck) MarkTrainAsStuck(v);
02488 if (got_reservation != NULL) *got_reservation = false;
02489 changed_signal = false;
02490 break;
02491 }
02492 }
02493
02494 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02495 FreeTrainTrackReservation(v);
02496 if (mark_stuck) MarkTrainAsStuck(v);
02497 if (got_reservation != NULL) *got_reservation = false;
02498 changed_signal = false;
02499 }
02500 break;
02501 }
02502
02503 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02504
02505 if (changed_signal) MarkTileDirtyByTile(tile);
02506
02507 return best_track;
02508 }
02509
02518 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02519 {
02520 assert(v->IsFrontEngine());
02521
02522
02523
02524
02525 if (v->track == TRACK_BIT_DEPOT) {
02526 if (HasDepotReservation(v->tile)) {
02527 if (mark_as_stuck) MarkTrainAsStuck(v);
02528 return false;
02529 } else {
02530
02531 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02532 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02533 }
02534 }
02535
02536 Vehicle *other_train = NULL;
02537 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02538
02539
02540
02541
02542
02543 if (other_train != NULL && other_train->index != v->index) {
02544 if (mark_as_stuck) MarkTrainAsStuck(v);
02545 return false;
02546 }
02547
02548 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02549
02550 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02551 ClrBit(v->flags, VRF_TRAIN_STUCK);
02552 return true;
02553 }
02554
02555
02556 if (v->track == TRACK_BIT_DEPOT) {
02557 SetDepotReservation(v->tile, true);
02558 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02559 }
02560
02561 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02562 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02563 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02564
02565 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02566
02567 bool res_made = false;
02568 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02569
02570 if (!res_made) {
02571
02572 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02573 return false;
02574 }
02575
02576 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02577 v->wait_counter = 0;
02578 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02579 }
02580 ClrBit(v->flags, VRF_TRAIN_STUCK);
02581 return true;
02582 }
02583
02584
02585 static bool CheckReverseTrain(const Train *v)
02586 {
02587 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02588 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02589 !(v->direction & 1)) {
02590 return false;
02591 }
02592
02593 assert(v->track != TRACK_BIT_NONE);
02594
02595 switch (_settings_game.pf.pathfinder_for_trains) {
02596 case VPF_NPF: return NPFTrainCheckReverse(v);
02597 case VPF_YAPF: return YapfTrainCheckReverse(v);
02598
02599 default: NOT_REACHED();
02600 }
02601 }
02602
02603 TileIndex Train::GetOrderStationLocation(StationID station)
02604 {
02605 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02606
02607 const Station *st = Station::Get(station);
02608 if (!(st->facilities & FACIL_TRAIN)) {
02609
02610 this->IncrementRealOrderIndex();
02611 return 0;
02612 }
02613
02614 return st->xy;
02615 }
02616
02617 void Train::MarkDirty()
02618 {
02619 Train *v = this;
02620 do {
02621 v->UpdateViewport(false, false);
02622 } while ((v = v->Next()) != NULL);
02623
02624
02625 this->CargoChanged();
02626 this->UpdateAcceleration();
02627 }
02628
02636 int Train::UpdateSpeed()
02637 {
02638 switch (_settings_game.vehicle.train_acceleration_model) {
02639 default: NOT_REACHED();
02640 case AM_ORIGINAL:
02641 return this->DoUpdateSpeed(this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2), 0, this->gcache.cached_max_track_speed);
02642
02643 case AM_REALISTIC:
02644 return this->DoUpdateSpeed(this->GetAcceleration(), this->GetAccelerationStatus() == AS_BRAKE ? 0 : 2, this->GetCurrentMaxSpeed());
02645 }
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 += this->GroundVehicleBase::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 if (v->owner != tcc->v->owner) return NULL;
02818
02819
02820 Train *coll = Train::From(v)->First();
02821
02822
02823 if (coll == tcc->v) return NULL;
02824
02825 int x_diff = v->x_pos - tcc->v->x_pos;
02826 int y_diff = v->y_pos - tcc->v->y_pos;
02827
02828
02829
02830
02831
02832 uint hash = (y_diff + 7) | (x_diff + 7);
02833 if (hash & ~15) return NULL;
02834
02835
02836 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
02837
02838
02839 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
02840
02841
02842 tcc->num += TrainCrashed(tcc->v);
02843 tcc->num += TrainCrashed(coll);
02844
02845 return NULL;
02846 }
02847
02854 static bool CheckTrainCollision(Train *v)
02855 {
02856
02857 if (v->track == TRACK_BIT_DEPOT) return false;
02858
02859 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
02860
02861 TrainCollideChecker tcc;
02862 tcc.v = v;
02863 tcc.num = 0;
02864
02865
02866 if (v->track == TRACK_BIT_WORMHOLE) {
02867 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
02868 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
02869 } else {
02870 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
02871 }
02872
02873
02874 if (tcc.num == 0) return false;
02875
02876 SetDParam(0, tcc.num);
02877 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
02878 NS_ACCIDENT,
02879 v->index
02880 );
02881
02882 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
02883 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
02884 return true;
02885 }
02886
02887 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
02888 {
02889 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
02890
02891 Train *t = Train::From(v);
02892 DiagDirection exitdir = *(DiagDirection *)data;
02893
02894
02895 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
02896
02897 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
02898
02899 return t;
02900 }
02901
02902 static void TrainController(Train *v, Vehicle *nomove)
02903 {
02904 Train *first = v->First();
02905 Train *prev;
02906 bool direction_changed = false;
02907
02908
02909 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
02910 DiagDirection enterdir = DIAGDIR_BEGIN;
02911 bool update_signals_crossing = false;
02912
02913 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
02914 if (v->track != TRACK_BIT_WORMHOLE) {
02915
02916 if (gp.old_tile == gp.new_tile) {
02917
02918 if (v->track == TRACK_BIT_DEPOT) {
02919
02920 gp.x = v->x_pos;
02921 gp.y = v->y_pos;
02922 } else {
02923
02924
02925
02926 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v)) return;
02927
02928 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
02929 if (HasBit(r, VETS_CANNOT_ENTER)) {
02930 goto invalid_rail;
02931 }
02932 if (HasBit(r, VETS_ENTERED_STATION)) {
02933
02934 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
02935 }
02936 }
02937 } else {
02938
02939
02940
02941 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
02942 assert(IsValidDiagDirection(enterdir));
02943
02944
02945
02946 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
02947 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
02948
02949 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
02950 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
02951
02952 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
02953 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
02954
02955
02956 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
02957 }
02958
02959 if (bits == TRACK_BIT_NONE) goto invalid_rail;
02960
02961
02962
02963 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
02964
02965 TrackBits chosen_track;
02966 if (prev == NULL) {
02967
02968
02969 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
02970 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
02971
02972 if (v->force_proceed != TFP_NONE && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
02973
02974
02975
02976
02977 Trackdir dir = FindFirstTrackdir(trackdirbits);
02978 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
02979 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
02980
02981
02982 v->force_proceed = (v->force_proceed == TFP_SIGNAL) ? TFP_STUCK : TFP_NONE;
02983 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02984 }
02985 }
02986
02987
02988 if ((red_signals & chosen_track) && v->force_proceed == TFP_NONE) {
02989
02990 Trackdir i = FindFirstTrackdir(trackdirbits);
02991
02992
02993 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return;
02994
02995 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
02996 v->cur_speed = 0;
02997 v->subspeed = 0;
02998 v->progress = 255 - 100;
02999 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return;
03000 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03001 v->cur_speed = 0;
03002 v->subspeed = 0;
03003 v->progress = 255 - 10;
03004 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03005 DiagDirection exitdir = TrackdirToExitdir(i);
03006 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03007
03008 exitdir = ReverseDiagDir(exitdir);
03009
03010
03011 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return;
03012 }
03013 }
03014
03015
03016
03017
03018
03019 if (!_settings_game.pf.reverse_at_signals && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03020 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03021 v->wait_counter = 0;
03022 return;
03023 }
03024 goto reverse_train_direction;
03025 } else {
03026 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03027 }
03028 } else {
03029
03030 if (prev->tile == gp.new_tile) {
03031
03032 if (prev->track == TRACK_BIT_WORMHOLE) {
03033
03034
03035 assert(IsTunnel(prev->tile));
03036 chosen_track = bits;
03037 } else {
03038 chosen_track = prev->track;
03039 }
03040 } else {
03041
03042
03043
03044
03045
03046
03047
03048 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03049 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03050 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03051 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03052 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03053 };
03054 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03055 assert(IsValidDiagDirection(exitdir));
03056 chosen_track = _connecting_track[enterdir][exitdir];
03057 }
03058 chosen_track &= bits;
03059 }
03060
03061
03062 assert(
03063 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03064 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03065 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03066
03067
03068 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03069 gp.x = (gp.x & ~0xF) | b[0];
03070 gp.y = (gp.y & ~0xF) | b[1];
03071 Direction chosen_dir = (Direction)b[2];
03072
03073
03074 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03075 if (HasBit(r, VETS_CANNOT_ENTER)) {
03076 goto invalid_rail;
03077 }
03078
03079 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03080 Track track = FindFirstTrack(chosen_track);
03081 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03082 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03083 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03084 MarkTileDirtyByTile(gp.new_tile);
03085 }
03086
03087
03088 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03089
03090 v->tile = gp.new_tile;
03091
03092 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03093 v->First()->RailtypeChanged();
03094 }
03095
03096 v->track = chosen_track;
03097 assert(v->track);
03098 }
03099
03100
03101
03102 update_signals_crossing = true;
03103
03104 if (chosen_dir != v->direction) {
03105 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03106 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03107 DirDiff diff = DirDifference(v->direction, chosen_dir);
03108 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03109 }
03110 direction_changed = true;
03111 v->direction = chosen_dir;
03112 }
03113
03114 if (v->IsFrontEngine()) {
03115 v->wait_counter = 0;
03116
03117
03118 TileIndex crossing = TrainApproachingCrossingTile(v);
03119 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03120
03121
03122 CheckNextTrainTile(v);
03123 }
03124
03125 if (HasBit(r, VETS_ENTERED_STATION)) {
03126
03127 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03128 }
03129 }
03130 } else {
03131
03132
03133
03134 if (!(v->vehstatus & VS_HIDDEN)) {
03135 Train *first = v->First();
03136 first->cur_speed = min(first->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03137 }
03138
03139 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03140
03141 if (v->IsFrontEngine()) {
03142 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03143 CheckNextTrainTile(v);
03144 }
03145
03146
03147 if (gp.old_tile == gp.new_tile) {
03148 gp.old_tile = GetOtherTunnelBridgeEnd(gp.old_tile);
03149 }
03150 } else {
03151 v->x_pos = gp.x;
03152 v->y_pos = gp.y;
03153 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03154 continue;
03155 }
03156 }
03157
03158
03159 v->UpdateDeltaXY(v->direction);
03160
03161 v->x_pos = gp.x;
03162 v->y_pos = gp.y;
03163
03164
03165 byte old_z = v->UpdateInclination(gp.new_tile != gp.old_tile, false);
03166
03167 if (prev == NULL) {
03168
03169 AffectSpeedByZChange(v, old_z);
03170 }
03171
03172 if (update_signals_crossing) {
03173 if (v->IsFrontEngine()) {
03174 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03175
03176
03177
03178
03179
03180
03181
03182
03183 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03184 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03185 !TryPathReserve(v)) {
03186 MarkTrainAsStuck(v);
03187 }
03188 }
03189 }
03190
03191
03192
03193 if (v->Next() == NULL) {
03194 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03195 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03196 }
03197 }
03198
03199
03200 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03201 }
03202
03203 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03204
03205 return;
03206
03207 invalid_rail:
03208
03209 if (prev != NULL) error("Disconnecting train");
03210
03211 reverse_train_direction:
03212 v->wait_counter = 0;
03213 v->cur_speed = 0;
03214 v->subspeed = 0;
03215 ReverseTrainDirection(v);
03216 }
03217
03224 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03225 {
03226 TrackBits *trackbits = (TrackBits *)data;
03227
03228 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03229 TrackBits train_tbits = Train::From(v)->track;
03230 if (train_tbits == TRACK_BIT_WORMHOLE) {
03231
03232 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03233 } else if (train_tbits != TRACK_BIT_DEPOT) {
03234 *trackbits |= train_tbits;
03235 }
03236 }
03237
03238 return NULL;
03239 }
03240
03248 static void DeleteLastWagon(Train *v)
03249 {
03250 Train *first = v->First();
03251
03252
03253
03254
03255 Train *u = v;
03256 for (; v->Next() != NULL; v = v->Next()) u = v;
03257 u->SetNext(NULL);
03258
03259 if (first != v) {
03260
03261 first->ConsistChanged(false);
03262
03263
03264 if (first->track == TRACK_BIT_DEPOT) {
03265 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03266 }
03267 }
03268
03269
03270 TrackBits trackbits = v->track;
03271 TileIndex tile = v->tile;
03272 Owner owner = v->owner;
03273
03274 delete v;
03275 v = NULL;
03276
03277 if (trackbits == TRACK_BIT_WORMHOLE) {
03278
03279 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03280 }
03281
03282 Track track = TrackBitsToTrack(trackbits);
03283 if (HasReservedTracks(tile, trackbits)) {
03284 UnreserveRailTrack(tile, track);
03285
03286
03287 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03288 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03289
03290
03291 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03292 Track t;
03293 FOR_EACH_SET_TRACK(t, remaining_trackbits) TryReserveRailTrack(tile, t);
03294 }
03295
03296
03297 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03298
03299
03300 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03301 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03302 } else {
03303 SetSignalsOnBothDir(tile, track, owner);
03304 }
03305 }
03306
03311 static void ChangeTrainDirRandomly(Train *v)
03312 {
03313 static const DirDiff delta[] = {
03314 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03315 };
03316
03317 do {
03318
03319 if (!(v->vehstatus & VS_HIDDEN)) {
03320 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03321 v->UpdateDeltaXY(v->direction);
03322 v->cur_image = v->GetImage(v->direction);
03323
03324
03325
03326 if (v->track != TRACK_BIT_WORMHOLE) v->UpdateInclination(false, false);
03327 }
03328 } while ((v = v->Next()) != NULL);
03329 }
03330
03336 static bool HandleCrashedTrain(Train *v)
03337 {
03338 int state = ++v->crash_anim_pos;
03339
03340 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03341 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03342 }
03343
03344 uint32 r;
03345 if (state <= 200 && Chance16R(1, 7, r)) {
03346 int index = (r * 10 >> 16);
03347
03348 Vehicle *u = v;
03349 do {
03350 if (--index < 0) {
03351 r = Random();
03352
03353 CreateEffectVehicleRel(u,
03354 GB(r, 8, 3) + 2,
03355 GB(r, 16, 3) + 2,
03356 GB(r, 0, 3) + 5,
03357 EV_EXPLOSION_SMALL);
03358 break;
03359 }
03360 } while ((u = u->Next()) != NULL);
03361 }
03362
03363 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03364
03365 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03366 bool ret = v->Next() != NULL;
03367 DeleteLastWagon(v);
03368 return ret;
03369 }
03370
03371 return true;
03372 }
03373
03375 static const uint16 _breakdown_speeds[16] = {
03376 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03377 };
03378
03379
03387 static bool TrainApproachingLineEnd(Train *v, bool signal)
03388 {
03389
03390 uint x = v->x_pos & 0xF;
03391 uint y = v->y_pos & 0xF;
03392
03393
03394
03395 switch (v->direction) {
03396 case DIR_N : x = ~x + ~y + 25; break;
03397 case DIR_NW: x = y;
03398 case DIR_NE: x = ~x + 16; break;
03399 case DIR_E : x = ~x + y + 9; break;
03400 case DIR_SE: x = y; break;
03401 case DIR_S : x = x + y - 7; break;
03402 case DIR_W : x = ~y + x + 9; break;
03403 default: break;
03404 }
03405
03406
03407 if (!signal && x + (v->gcache.cached_veh_length + 1) / 2 >= TILE_SIZE) {
03408
03409 v->cur_speed = 0;
03410 ReverseTrainDirection(v);
03411 return false;
03412 }
03413
03414
03415 v->vehstatus |= VS_TRAIN_SLOWING;
03416 uint16 break_speed = _breakdown_speeds[x & 0xF];
03417 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03418
03419 return true;
03420 }
03421
03422
03428 static bool TrainCanLeaveTile(const Train *v)
03429 {
03430
03431 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03432
03433 TileIndex tile = v->tile;
03434
03435
03436 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03437 DiagDirection dir = GetTunnelBridgeDirection(tile);
03438 if (DiagDirToDir(dir) == v->direction) return false;
03439 }
03440
03441
03442 if (IsRailDepotTile(tile)) {
03443 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03444 if (DiagDirToDir(dir) == v->direction) return false;
03445 }
03446
03447 return true;
03448 }
03449
03450
03458 static TileIndex TrainApproachingCrossingTile(const Train *v)
03459 {
03460 assert(v->IsFrontEngine());
03461 assert(!(v->vehstatus & VS_CRASHED));
03462
03463 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03464
03465 DiagDirection dir = TrainExitDir(v->direction, v->track);
03466 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03467
03468
03469 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03470 !CheckCompatibleRail(v, tile)) {
03471 return INVALID_TILE;
03472 }
03473
03474 return tile;
03475 }
03476
03477
03484 static bool TrainCheckIfLineEnds(Train *v)
03485 {
03486
03487
03488 int t = v->breakdown_ctr;
03489 if (t > 1) {
03490 v->vehstatus |= VS_TRAIN_SLOWING;
03491
03492 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03493 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03494 } else {
03495 v->vehstatus &= ~VS_TRAIN_SLOWING;
03496 }
03497
03498 if (!TrainCanLeaveTile(v)) return true;
03499
03500
03501 DiagDirection dir = TrainExitDir(v->direction, v->track);
03502
03503 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03504
03505
03506 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03507 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03508
03509 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03510 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03511
03512
03513
03514
03515 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03516 if (_settings_game.pf.forbid_90_deg) {
03517 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03518 }
03519
03520
03521 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03522 return TrainApproachingLineEnd(v, false);
03523 }
03524
03525
03526 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
03527
03528
03529 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03530
03531 return true;
03532 }
03533
03534
03535 static bool TrainLocoHandler(Train *v, bool mode)
03536 {
03537
03538 if (v->vehstatus & VS_CRASHED) {
03539 return mode ? true : HandleCrashedTrain(v);
03540 }
03541
03542 if (v->force_proceed != TFP_NONE) {
03543 ClrBit(v->flags, VRF_TRAIN_STUCK);
03544 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03545 }
03546
03547
03548 if (v->HandleBreakdown()) return true;
03549
03550 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03551 ReverseTrainDirection(v);
03552 }
03553
03554
03555 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03556
03557 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03558 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03559 v->wait_counter = 0;
03560 v->cur_speed = 0;
03561 v->subspeed = 0;
03562 ClrBit(v->flags, VRF_LEAVING_STATION);
03563 ReverseTrainDirection(v);
03564 return true;
03565 } else if (HasBit(v->flags, VRF_LEAVING_STATION)) {
03566
03567
03568
03569 DiagDirection dir = TrainExitDir(v->direction, v->track);
03570 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
03571
03572 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
03573 TryPathReserve(v, true, true);
03574 }
03575 ClrBit(v->flags, VRF_LEAVING_STATION);
03576 }
03577
03578 v->HandleLoading(mode);
03579
03580 if (v->current_order.IsType(OT_LOADING)) return true;
03581
03582 if (CheckTrainStayInDepot(v)) return true;
03583
03584 if (!mode) v->ShowVisualEffect();
03585
03586
03587 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03588 CheckNextTrainTile(v);
03589 }
03590
03591
03592 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03593 ++v->wait_counter;
03594
03595
03596 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.reverse_at_signals;
03597
03598 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == TFP_NONE) return true;
03599 if (!TryPathReserve(v)) {
03600
03601 if (turn_around) ReverseTrainDirection(v);
03602
03603 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03604
03605 if (_settings_client.gui.lost_vehicle_warn && v->owner == _local_company) {
03606 SetDParam(0, v->index);
03607 AddVehicleNewsItem(
03608 STR_NEWS_TRAIN_IS_STUCK,
03609 NS_ADVICE,
03610 v->index
03611 );
03612 }
03613 v->wait_counter = 0;
03614 }
03615
03616 if (v->force_proceed == TFP_NONE) return true;
03617 ClrBit(v->flags, VRF_TRAIN_STUCK);
03618 v->wait_counter = 0;
03619 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03620 }
03621 }
03622
03623 if (v->current_order.IsType(OT_LEAVESTATION)) {
03624 v->current_order.Free();
03625 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03626 return true;
03627 }
03628
03629 int j = v->UpdateSpeed();
03630
03631
03632 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
03633
03634 v->force_proceed = TFP_NONE;
03635 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03636 }
03637
03638 int adv_spd = v->GetAdvanceDistance();
03639 if (j < adv_spd) {
03640
03641 if (v->cur_speed == 0) v->SetLastSpeed();
03642 } else {
03643 TrainCheckIfLineEnds(v);
03644
03645 for (;;) {
03646 j -= adv_spd;
03647 TrainController(v, NULL);
03648
03649 if (CheckTrainCollision(v)) break;
03650
03651 adv_spd = v->GetAdvanceDistance();
03652
03653
03654 if (j < adv_spd || v->cur_speed == 0) break;
03655
03656 OrderType order_type = v->current_order.GetType();
03657
03658 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
03659 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
03660 IsTileType(v->tile, MP_STATION) &&
03661 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
03662 ProcessOrders(v);
03663 }
03664 }
03665 v->SetLastSpeed();
03666 }
03667
03668 for (Train *u = v; u != NULL; u = u->Next()) {
03669 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
03670
03671 u->UpdateViewport(false, false);
03672 }
03673
03674 if (v->progress == 0) v->progress = j;
03675
03676 return true;
03677 }
03678
03679
03680
03681 Money Train::GetRunningCost() const
03682 {
03683 Money cost = 0;
03684 const Train *v = this;
03685
03686 do {
03687 const Engine *e = Engine::Get(v->engine_type);
03688 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
03689
03690 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
03691 if (cost_factor == 0) continue;
03692
03693
03694 if (v->IsMultiheaded()) cost_factor /= 2;
03695
03696 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->grf_prop.grffile);
03697 } while ((v = v->GetNextVehicle()) != NULL);
03698
03699 return cost;
03700 }
03701
03702
03703 bool Train::Tick()
03704 {
03705 this->tick_counter++;
03706
03707 if (this->IsFrontEngine()) {
03708 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
03709
03710 this->current_order_time++;
03711
03712 if (!TrainLocoHandler(this, false)) return false;
03713
03714 return TrainLocoHandler(this, true);
03715 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
03716
03717 if (++this->crash_anim_pos >= 4400) {
03718 delete this;
03719 return false;
03720 }
03721 }
03722
03723 return true;
03724 }
03725
03726 static void CheckIfTrainNeedsService(Train *v)
03727 {
03728 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
03729 if (v->IsInDepot()) {
03730 VehicleServiceInDepot(v);
03731 return;
03732 }
03733
03734 uint max_penalty;
03735 switch (_settings_game.pf.pathfinder_for_trains) {
03736 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
03737 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
03738 default: NOT_REACHED();
03739 }
03740
03741 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
03742
03743 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
03744 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
03745
03746
03747
03748 v->current_order.MakeDummy();
03749 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03750 }
03751 return;
03752 }
03753
03754 DepotID depot = GetDepotIndex(tfdd.tile);
03755
03756 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
03757 v->current_order.GetDestination() != depot &&
03758 !Chance16(3, 16)) {
03759 return;
03760 }
03761
03762 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
03763 v->dest_tile = tfdd.tile;
03764 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03765 }
03766
03767 void Train::OnNewDay()
03768 {
03769 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
03770
03771 if (this->IsFrontEngine()) {
03772 CheckVehicleBreakdown(this);
03773 AgeVehicle(this);
03774
03775 CheckIfTrainNeedsService(this);
03776
03777 CheckOrders(this);
03778
03779
03780 if (this->current_order.IsType(OT_GOTO_STATION)) {
03781 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
03782 if (tile != INVALID_TILE) this->dest_tile = tile;
03783 }
03784
03785 if (this->running_ticks != 0) {
03786
03787 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
03788
03789 this->profit_this_year -= cost.GetCost();
03790 this->running_ticks = 0;
03791
03792 SubtractMoneyFromCompanyFract(this->owner, cost);
03793
03794 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
03795 SetWindowClassesDirty(WC_TRAINS_LIST);
03796 }
03797 } else if (this->IsEngine()) {
03798
03799 AgeVehicle(this);
03800 }
03801 }
03802
03803 Trackdir Train::GetVehicleTrackdir() const
03804 {
03805 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
03806
03807 if (this->track == TRACK_BIT_DEPOT) {
03808
03809 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
03810 }
03811
03812 if (this->track == TRACK_BIT_WORMHOLE) {
03813
03814 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
03815 }
03816
03817 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
03818 }