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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 = VEHICLE_LENGTH - Clamp(veh_len, 0, VEHICLE_LENGTH - 1);
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
00318
00319
00320 return stop - VEHICLE_LENGTH / 2;
00321 }
00322
00323
00328 int Train::GetCurveSpeedLimit() const
00329 {
00330 assert(this->First() == this);
00331
00332 static const int absolute_max_speed = UINT16_MAX;
00333 int max_speed = absolute_max_speed;
00334
00335 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return max_speed;
00336
00337 int curvecount[2] = {0, 0};
00338
00339
00340 int numcurve = 0;
00341 int sum = 0;
00342 int pos = 0;
00343 int lastpos = -1;
00344 for (const Vehicle *u = this; u->Next() != NULL; u = u->Next(), pos++) {
00345 Direction this_dir = u->direction;
00346 Direction next_dir = u->Next()->direction;
00347
00348 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00349 if (dirdiff == DIRDIFF_SAME) continue;
00350
00351 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00352 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00353 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00354 if (lastpos != -1) {
00355 numcurve++;
00356 sum += pos - lastpos;
00357 if (pos - lastpos == 1) {
00358 max_speed = 88;
00359 }
00360 }
00361 lastpos = pos;
00362 }
00363
00364
00365 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00366 max_speed = 61;
00367 }
00368 }
00369
00370 if (numcurve > 0 && max_speed > 88) {
00371 if (curvecount[0] == 1 && curvecount[1] == 1) {
00372 max_speed = absolute_max_speed;
00373 } else {
00374 sum /= numcurve;
00375 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00376 }
00377 }
00378
00379 if (max_speed != absolute_max_speed) {
00380
00381 const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00382 max_speed += (max_speed / 2) * rti->curve_speed;
00383
00384 if (this->tcache.cached_tilt) {
00385
00386 max_speed += max_speed / 5;
00387 }
00388 }
00389
00390 return max_speed;
00391 }
00392
00397 int Train::GetCurrentMaxSpeed() const
00398 {
00399 int max_speed = this->tcache.cached_max_curve_speed;
00400 assert(max_speed == this->GetCurveSpeedLimit());
00401
00402 if (IsRailStationTile(this->tile)) {
00403 StationID sid = GetStationIndex(this->tile);
00404 if (this->current_order.ShouldStopAtStation(this, sid)) {
00405 int station_ahead;
00406 int station_length;
00407 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00408
00409
00410
00411 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00412
00413 if (distance_to_go > 0) {
00414 int st_max_speed = 120;
00415
00416 int delta_v = this->cur_speed / (distance_to_go + 1);
00417 if (max_speed > (this->cur_speed - delta_v)) {
00418 st_max_speed = this->cur_speed - (delta_v / 10);
00419 }
00420
00421 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00422 max_speed = min(max_speed, st_max_speed);
00423 }
00424 }
00425 }
00426
00427 for (const Train *u = this; u != NULL; u = u->Next()) {
00428 if (u->track == TRACK_BIT_DEPOT) {
00429 max_speed = min(max_speed, 61);
00430 break;
00431 }
00432 }
00433
00434 return min(max_speed, this->gcache.cached_max_track_speed);
00435 }
00436
00437 void Train::UpdateAcceleration()
00438 {
00439 assert(this->IsFrontEngine());
00440
00441 uint power = this->gcache.cached_power;
00442 uint weight = this->gcache.cached_weight;
00443 assert(weight != 0);
00444 this->acceleration = Clamp(power / weight * 4, 1, 255);
00445 }
00446
00452 int Train::GetDisplayImageWidth(Point *offset) const
00453 {
00454 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00455 int vehicle_pitch = 0;
00456
00457 const Engine *e = Engine::Get(this->engine_type);
00458 if (e->grf_prop.grffile != NULL && is_custom_sprite(e->u.rail.image_index)) {
00459 reference_width = e->grf_prop.grffile->traininfo_vehicle_width;
00460 vehicle_pitch = e->grf_prop.grffile->traininfo_vehicle_pitch;
00461 }
00462
00463 if (offset != NULL) {
00464 offset->x = reference_width / 2;
00465 offset->y = vehicle_pitch;
00466 }
00467 return this->gcache.cached_veh_length * reference_width / VEHICLE_LENGTH;
00468 }
00469
00470 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00471 {
00472 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00473 }
00474
00475 SpriteID Train::GetImage(Direction direction) const
00476 {
00477 uint8 spritenum = this->spritenum;
00478 SpriteID sprite;
00479
00480 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00481
00482 if (is_custom_sprite(spritenum)) {
00483 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00484 if (sprite != 0) return sprite;
00485
00486 spritenum = Engine::Get(this->engine_type)->original_image_index;
00487 }
00488
00489 sprite = GetDefaultTrainSprite(spritenum, direction);
00490
00491 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00492
00493 return sprite;
00494 }
00495
00496 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00497 {
00498 const Engine *e = Engine::Get(engine);
00499 Direction dir = rear_head ? DIR_E : DIR_W;
00500 uint8 spritenum = e->u.rail.image_index;
00501
00502 if (is_custom_sprite(spritenum)) {
00503 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00504 if (sprite != 0) {
00505 if (e->grf_prop.grffile != NULL) {
00506 y += e->grf_prop.grffile->traininfo_vehicle_pitch;
00507 }
00508 return sprite;
00509 }
00510
00511 spritenum = Engine::Get(engine)->original_image_index;
00512 }
00513
00514 if (rear_head) spritenum++;
00515
00516 return GetDefaultTrainSprite(spritenum, DIR_W);
00517 }
00518
00519 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal)
00520 {
00521 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00522 int yf = y;
00523 int yr = y;
00524
00525 SpriteID spritef = GetRailIcon(engine, false, yf);
00526 SpriteID spriter = GetRailIcon(engine, true, yr);
00527 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00528 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00529
00530 preferred_x = Clamp(preferred_x, left - real_spritef->x_offs + 14, right - real_spriter->width - real_spriter->x_offs - 15);
00531
00532 DrawSprite(spritef, pal, preferred_x - 14, yf);
00533 DrawSprite(spriter, pal, preferred_x + 15, yr);
00534 } else {
00535 SpriteID sprite = GetRailIcon(engine, false, y);
00536 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00537 preferred_x = Clamp(preferred_x, left - real_sprite->x_offs, right - real_sprite->width - real_sprite->x_offs);
00538 DrawSprite(sprite, pal, preferred_x, y);
00539 }
00540 }
00541
00550 static CommandCost CmdBuildRailWagon(TileIndex tile, DoCommandFlag flags, const Engine *e, Vehicle **ret)
00551 {
00552 const RailVehicleInfo *rvi = &e->u.rail;
00553
00554
00555 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00556
00557 if (flags & DC_EXEC) {
00558 Train *v = new Train();
00559 *ret = v;
00560 v->spritenum = rvi->image_index;
00561
00562 v->engine_type = e->index;
00563 v->gcache.first_engine = INVALID_ENGINE;
00564
00565 DiagDirection dir = GetRailDepotDirection(tile);
00566
00567 v->direction = DiagDirToDir(dir);
00568 v->tile = tile;
00569
00570 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00571 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00572
00573 v->x_pos = x;
00574 v->y_pos = y;
00575 v->z_pos = GetSlopeZ(x, y);
00576 v->owner = _current_company;
00577 v->track = TRACK_BIT_DEPOT;
00578 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00579
00580 v->SetWagon();
00581
00582 v->SetFreeWagon();
00583 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00584
00585 v->cargo_type = e->GetDefaultCargoType();
00586 v->cargo_cap = rvi->capacity;
00587
00588 v->railtype = rvi->railtype;
00589
00590 v->build_year = _cur_year;
00591 v->cur_image = SPR_IMG_QUERY;
00592 v->random_bits = VehicleRandomBits();
00593
00594 v->group_id = DEFAULT_GROUP;
00595
00596 AddArticulatedParts(v);
00597
00598 _new_vehicle_id = v->index;
00599
00600 VehicleMove(v, false);
00601 v->First()->ConsistChanged(false);
00602 UpdateTrainGroupID(v->First());
00603
00604 CheckConsistencyOfArticulatedVehicle(v);
00605
00606
00607 Train *w;
00608 FOR_ALL_TRAINS(w) {
00609 if (w->tile == tile &&
00610 w->IsFreeWagon() &&
00611 w->engine_type == e->index &&
00612 w->First() != v &&
00613 !(w->vehstatus & VS_CRASHED)) {
00614 DoCommand(0, v->index | 1 << 20, w->Last()->index, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00615 break;
00616 }
00617 }
00618 }
00619
00620 return CommandCost();
00621 }
00622
00624 static void NormalizeTrainVehInDepot(const Train *u)
00625 {
00626 const Train *v;
00627 FOR_ALL_TRAINS(v) {
00628 if (v->IsFreeWagon() && v->tile == u->tile &&
00629 v->track == TRACK_BIT_DEPOT) {
00630 if (DoCommand(0, v->index | 1 << 20, u->index, DC_EXEC,
00631 CMD_MOVE_RAIL_VEHICLE).Failed())
00632 break;
00633 }
00634 }
00635 }
00636
00637 static void AddRearEngineToMultiheadedTrain(Train *v)
00638 {
00639 Train *u = new Train();
00640 v->value >>= 1;
00641 u->value = v->value;
00642 u->direction = v->direction;
00643 u->owner = v->owner;
00644 u->tile = v->tile;
00645 u->x_pos = v->x_pos;
00646 u->y_pos = v->y_pos;
00647 u->z_pos = v->z_pos;
00648 u->track = TRACK_BIT_DEPOT;
00649 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00650 u->spritenum = v->spritenum + 1;
00651 u->cargo_type = v->cargo_type;
00652 u->cargo_subtype = v->cargo_subtype;
00653 u->cargo_cap = v->cargo_cap;
00654 u->railtype = v->railtype;
00655 u->engine_type = v->engine_type;
00656 u->build_year = v->build_year;
00657 u->cur_image = SPR_IMG_QUERY;
00658 u->random_bits = VehicleRandomBits();
00659 v->SetMultiheaded();
00660 u->SetMultiheaded();
00661 v->SetNext(u);
00662 VehicleMove(u, false);
00663
00664
00665 v->other_multiheaded_part = u;
00666 u->other_multiheaded_part = v;
00667 }
00668
00678 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, const Engine *e, uint16 data, Vehicle **ret)
00679 {
00680 const RailVehicleInfo *rvi = &e->u.rail;
00681
00682 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(tile, flags, e, ret);
00683
00684
00685
00686 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00687
00688 if (flags & DC_EXEC) {
00689 DiagDirection dir = GetRailDepotDirection(tile);
00690 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00691 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00692
00693 Train *v = new Train();
00694 *ret = v;
00695 v->direction = DiagDirToDir(dir);
00696 v->tile = tile;
00697 v->owner = _current_company;
00698 v->x_pos = x;
00699 v->y_pos = y;
00700 v->z_pos = GetSlopeZ(x, y);
00701 v->track = TRACK_BIT_DEPOT;
00702 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00703 v->spritenum = rvi->image_index;
00704 v->cargo_type = e->GetDefaultCargoType();
00705 v->cargo_cap = rvi->capacity;
00706 v->last_station_visited = INVALID_STATION;
00707 v->last_loading_station = INVALID_STATION;
00708
00709 v->engine_type = e->index;
00710 v->gcache.first_engine = INVALID_ENGINE;
00711
00712 v->reliability = e->reliability;
00713 v->reliability_spd_dec = e->reliability_spd_dec;
00714 v->max_age = e->GetLifeLengthInDays();
00715
00716 v->railtype = rvi->railtype;
00717 _new_vehicle_id = v->index;
00718
00719 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00720 v->date_of_last_service = _date;
00721 v->build_year = _cur_year;
00722 v->cur_image = SPR_IMG_QUERY;
00723 v->random_bits = VehicleRandomBits();
00724
00725 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00726
00727 v->group_id = DEFAULT_GROUP;
00728
00729 v->SetFrontEngine();
00730 v->SetEngine();
00731
00732 VehicleMove(v, false);
00733
00734 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00735 AddRearEngineToMultiheadedTrain(v);
00736 } else {
00737 AddArticulatedParts(v);
00738 }
00739
00740 v->ConsistChanged(false);
00741 UpdateTrainGroupID(v);
00742
00743 if (!HasBit(data, 0) && !(flags & DC_AUTOREPLACE)) {
00744 NormalizeTrainVehInDepot(v);
00745 }
00746
00747 CheckConsistencyOfArticulatedVehicle(v);
00748 }
00749
00750 return CommandCost();
00751 }
00752
00753
00754 bool Train::IsInDepot() const
00755 {
00756
00757 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00758
00759
00760 for (const Train *v = this; v != NULL; v = v->Next()) {
00761 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00762 }
00763
00764 return true;
00765 }
00766
00767 bool Train::IsStoppedInDepot() const
00768 {
00769
00770 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00771 return this->IsInDepot();
00772 }
00773
00774 static Train *FindGoodVehiclePos(const Train *src)
00775 {
00776 EngineID eng = src->engine_type;
00777 TileIndex tile = src->tile;
00778
00779 Train *dst;
00780 FOR_ALL_TRAINS(dst) {
00781 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00782
00783 Train *t = dst;
00784 while (t->engine_type == eng) {
00785 t = t->Next();
00786 if (t == NULL) return dst;
00787 }
00788 }
00789 }
00790
00791 return NULL;
00792 }
00793
00795 typedef SmallVector<Train *, 16> TrainList;
00796
00802 static void MakeTrainBackup(TrainList &list, Train *t)
00803 {
00804 for (; t != NULL; t = t->Next()) *list.Append() = t;
00805 }
00806
00811 static void RestoreTrainBackup(TrainList &list)
00812 {
00813
00814 if (list.Length() == 0) return;
00815
00816 Train *prev = NULL;
00817
00818 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00819 Train *t = *iter;
00820 if (prev != NULL) {
00821 prev->SetNext(t);
00822 } else if (t->Previous() != NULL) {
00823
00824 t->Previous()->SetNext(NULL);
00825 }
00826 prev = t;
00827 }
00828 }
00829
00835 static void RemoveFromConsist(Train *part, bool chain = false)
00836 {
00837 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
00838
00839
00840
00841 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
00842
00843
00844 tail->SetNext(NULL);
00845 }
00846
00852 static void InsertInConsist(Train *dst, Train *chain)
00853 {
00854
00855 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
00856
00857 chain->Last()->SetNext(dst->Next());
00858 dst->SetNext(chain);
00859 }
00860
00866 static void NormaliseDualHeads(Train *t)
00867 {
00868 for (; t != NULL; t = t->GetNextVehicle()) {
00869 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
00870
00871
00872 Train *u;
00873 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
00874
00875 if (u == t->other_multiheaded_part) continue;
00876
00877
00878 RemoveFromConsist(t->other_multiheaded_part);
00879
00880 InsertInConsist(u, t->other_multiheaded_part);
00881 }
00882 }
00883
00888 static void NormaliseSubtypes(Train *chain)
00889 {
00890
00891 if (chain == NULL) return;
00892
00893
00894 assert(chain->Previous() == NULL);
00895
00896
00897 if (chain->IsWagon()) {
00898 chain->SetFreeWagon();
00899 } else {
00900 assert(chain->IsEngine());
00901 chain->SetFrontEngine();
00902 }
00903
00904
00905 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
00906 t->ClearFreeWagon();
00907 t->ClearFrontEngine();
00908 }
00909 }
00910
00920 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
00921 {
00922
00923
00924
00925 if ((src != NULL && src->IsEngine() ? 1 : 0) +
00926 (dst != NULL && dst->IsEngine() ? 1 : 0) -
00927 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
00928 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
00929 return CommandCost();
00930 }
00931
00932
00933
00934 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
00935
00936 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00937 }
00938
00944 static CommandCost CheckTrainAttachment(Train *t)
00945 {
00946
00947 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
00948
00949
00950
00951 int allowed_len = _settings_game.vehicle.max_train_length * TILE_SIZE - t->gcache.cached_veh_length;
00952
00953 Train *head = t;
00954 Train *prev = t;
00955
00956
00957 t = t->Next();
00958 prev->SetNext(NULL);
00959
00960
00961 head->InvalidateNewGRFCache();
00962
00963 while (t != NULL) {
00964 allowed_len -= t->gcache.cached_veh_length;
00965
00966 Train *next = t->Next();
00967
00968
00969
00970 t->SetNext(NULL);
00971
00972
00973 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
00974
00975 EngineID first_engine = t->gcache.first_engine;
00976 t->gcache.first_engine = INVALID_ENGINE;
00977
00978
00979
00980 t->InvalidateNewGRFCache();
00981
00982 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
00983
00984
00985 t->gcache.first_engine = first_engine;
00986
00987
00988 t->InvalidateNewGRFCache();
00989 head->InvalidateNewGRFCache();
00990
00991 if (callback != CALLBACK_FAILED) {
00992
00993 StringID error = STR_NULL;
00994
00995 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00996 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(head->engine_type), 0xD000 + callback);
00997
00998 if (error != STR_NULL) return_cmd_error(error);
00999 }
01000 }
01001
01002
01003 prev->SetNext(t);
01004 prev = t;
01005 t = next;
01006 }
01007
01008 if (allowed_len < 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01009 return CommandCost();
01010 }
01011
01022 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
01023 {
01024
01025 CommandCost ret = CheckTrainAttachment(src);
01026 if (ret.Failed()) return ret;
01027 ret = CheckTrainAttachment(dst);
01028 if (ret.Failed()) return ret;
01029
01030
01031 return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
01032 }
01033
01042 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01043 {
01044
01045 if (*src_head == *dst_head) {
01046
01047
01048 *dst_head = NULL;
01049 } else if (*dst_head == NULL) {
01050
01051
01052 *dst_head = src;
01053 }
01054
01055 if (src == *src_head) {
01056
01057
01058
01059
01060
01061
01062 *src_head = move_chain ? NULL :
01063 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01064 }
01065
01066
01067
01068
01069 RemoveFromConsist(src, move_chain);
01070 if (*dst_head != src) InsertInConsist(dst, src);
01071
01072
01073
01074 NormaliseDualHeads(*src_head);
01075 NormaliseDualHeads(*dst_head);
01076 }
01077
01083 static void NormaliseTrainHead(Train *head)
01084 {
01085
01086 if (head == NULL) return;
01087
01088
01089 head->ConsistChanged(false);
01090 UpdateTrainGroupID(head);
01091
01092
01093 if (!head->IsFrontEngine()) return;
01094
01095
01096 InvalidateWindowData(WC_VEHICLE_REFIT, head->index);
01097 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, VVW_WIDGET_REFIT_VEH);
01098
01099
01100 if (head->unitnumber != 0) return;
01101 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01102 }
01103
01116 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01117 {
01118 VehicleID s = GB(p1, 0, 20);
01119 VehicleID d = GB(p2, 0, 20);
01120 bool move_chain = HasBit(p1, 20);
01121
01122 Train *src = Train::GetIfValid(s);
01123 if (src == NULL) return CMD_ERROR;
01124
01125 CommandCost ret = CheckOwnership(src->owner);
01126 if (ret.Failed()) return ret;
01127
01128
01129 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01130
01131
01132 Train *dst;
01133 if (d == INVALID_VEHICLE) {
01134 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01135 } else {
01136 dst = Train::GetIfValid(d);
01137 if (dst == NULL) return CMD_ERROR;
01138
01139 CommandCost ret = CheckOwnership(dst->owner);
01140 if (ret.Failed()) return ret;
01141
01142
01143 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01144 }
01145
01146
01147 src = src->GetFirstEnginePart();
01148 if (dst != NULL) {
01149 dst = dst->GetFirstEnginePart();
01150 }
01151
01152
01153 if (src == dst) return CommandCost();
01154
01155
01156 Train *src_head = src->First();
01157 Train *dst_head;
01158 if (dst != NULL) {
01159 dst_head = dst->First();
01160 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01161
01162 dst = dst->GetLastEnginePart();
01163 } else {
01164 dst_head = NULL;
01165 }
01166
01167 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01168
01169
01170 if (move_chain && src_head == dst_head) return CommandCost();
01171
01172
01173 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01174
01175
01176 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01177
01178
01179 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01180
01181
01182
01183 TrainList original_src;
01184 TrainList original_dst;
01185
01186 MakeTrainBackup(original_src, src_head);
01187 MakeTrainBackup(original_dst, dst_head);
01188
01189
01190
01191
01192 Train *original_src_head = src_head;
01193 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01194
01195
01196 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01197
01198 if ((flags & DC_AUTOREPLACE) == 0) {
01199
01200
01201
01202 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
01203 if (ret.Failed()) {
01204
01205 RestoreTrainBackup(original_src);
01206 RestoreTrainBackup(original_dst);
01207 return ret;
01208 }
01209 }
01210
01211
01212 if (flags & DC_EXEC) {
01213
01214 NormaliseSubtypes(src_head);
01215 NormaliseSubtypes(dst_head);
01216
01217
01218
01219
01220
01221
01222
01223
01224
01225
01226
01227
01228
01229
01230
01231
01232
01233
01234
01235
01236
01237 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01238
01239 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01240 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01241 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01242 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01243 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01244
01245
01246
01247 if (dst_head != NULL && dst_head != src && (src_head == NULL || !src_head->IsFrontEngine())) {
01248 DecreaseGroupNumVehicle(src->group_id);
01249 }
01250
01251
01252
01253 if (dst_head == NULL && !src_head->IsFrontEngine()) {
01254 DecreaseGroupNumVehicle(src->group_id);
01255 }
01256
01257
01258
01259 DeleteVehicleOrders(src);
01260 RemoveVehicleFromGroup(src);
01261 src->unitnumber = 0;
01262 }
01263
01264
01265
01266 if (original_src_head == src && dst_head == src) {
01267 IncreaseGroupNumVehicle(src->group_id);
01268 }
01269
01270
01271
01272 if (original_src_head != src && dst_head == src) {
01273 SetTrainGroupID(src, DEFAULT_GROUP);
01274 }
01275
01276
01277 NormaliseTrainHead(src_head);
01278 NormaliseTrainHead(dst_head);
01279
01280
01281 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01282 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01283 } else {
01284
01285 RestoreTrainBackup(original_src);
01286 RestoreTrainBackup(original_dst);
01287 }
01288
01289 return CommandCost();
01290 }
01291
01303 CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint32 user)
01304 {
01305
01306 Window *w = NULL;
01307
01308
01309 bool sell_chain = HasBit(data, 0);
01310
01311 Train *v = Train::From(t)->GetFirstEnginePart();
01312 Train *first = v->First();
01313
01314 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01315
01316
01317
01318 TrainList original;
01319 MakeTrainBackup(original, first);
01320
01321
01322 Train *new_head = first;
01323 Train *sell_head = NULL;
01324
01325
01326 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01327
01328
01329 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
01330 if (ret.Failed()) {
01331
01332 RestoreTrainBackup(original);
01333 return ret;
01334 }
01335
01336 CommandCost cost(EXPENSES_NEW_VEHICLES);
01337 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01338
01339 if (first->orders.list == NULL && !OrderList::CanAllocateItem()) {
01340 return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
01341 }
01342
01343
01344 if (flags & DC_EXEC) {
01345
01346 NormaliseSubtypes(new_head);
01347
01348 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01349
01350
01351 new_head->orders.list = first->orders.list;
01352 new_head->AddToShared(first);
01353 DeleteVehicleOrders(first);
01354
01355
01356 new_head->CopyVehicleConfigAndStatistics(first);
01357 IncreaseGroupNumVehicle(new_head->group_id);
01358
01359
01360 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01361 } else if (v->IsPrimaryVehicle() && data & (MAKE_ORDER_BACKUP_FLAG >> 20)) {
01362 OrderBackup::Backup(v, user);
01363 }
01364
01365
01366 NormaliseTrainHead(new_head);
01367
01368
01369 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01370 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01371
01372
01373 delete sell_head;
01374 } else {
01375
01376 RestoreTrainBackup(original);
01377 }
01378
01379 return cost;
01380 }
01381
01382 void Train::UpdateDeltaXY(Direction direction)
01383 {
01384 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01385 static const uint32 _delta_xy_table[8] = {
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 MKIT(3, 3, -1, -1),
01391 MKIT(3, 7, -1, -3),
01392 MKIT(3, 3, -1, -1),
01393 MKIT(7, 3, -3, -1),
01394 };
01395 #undef MKIT
01396
01397 uint32 x = _delta_xy_table[direction];
01398 this->x_offs = GB(x, 0, 8);
01399 this->y_offs = GB(x, 8, 8);
01400 this->x_extent = GB(x, 16, 8);
01401 this->y_extent = GB(x, 24, 8);
01402 this->z_extent = 6;
01403 }
01404
01406 static void MarkTrainAsStuck(Train *v)
01407 {
01408 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01409
01410 SetBit(v->flags, VRF_TRAIN_STUCK);
01411
01412 v->wait_counter = 0;
01413
01414
01415 v->cur_speed = 0;
01416 v->subspeed = 0;
01417 v->SetLastSpeed();
01418
01419 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01420 }
01421 }
01422
01423 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01424 {
01425 uint16 flag1 = *swap_flag1;
01426 uint16 flag2 = *swap_flag2;
01427
01428
01429 ClrBit(*swap_flag1, GVF_GOINGUP_BIT);
01430 ClrBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01431 ClrBit(*swap_flag2, GVF_GOINGUP_BIT);
01432 ClrBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01433
01434
01435 if (HasBit(flag1, GVF_GOINGUP_BIT)) {
01436 SetBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01437 } else if (HasBit(flag1, GVF_GOINGDOWN_BIT)) {
01438 SetBit(*swap_flag2, GVF_GOINGUP_BIT);
01439 }
01440 if (HasBit(flag2, GVF_GOINGUP_BIT)) {
01441 SetBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01442 } else if (HasBit(flag2, GVF_GOINGDOWN_BIT)) {
01443 SetBit(*swap_flag1, GVF_GOINGUP_BIT);
01444 }
01445 }
01446
01451 static void UpdateStatusAfterSwap(Train *v)
01452 {
01453
01454 if (v->track != TRACK_BIT_DEPOT) v->direction = ReverseDir(v->direction);
01455
01456
01457 if (v->track != TRACK_BIT_WORMHOLE) {
01458 VehicleEnterTile(v, v->tile, v->x_pos, v->y_pos);
01459 } else {
01460
01461
01462
01463
01464 TileIndex vt = TileVirtXY(v->x_pos, v->y_pos);
01465 if (IsTileType(vt, MP_TUNNELBRIDGE)) {
01466 VehicleEnterTile(v, vt, v->x_pos, v->y_pos);
01467 if (v->track != TRACK_BIT_WORMHOLE && IsBridgeTile(v->tile)) {
01468
01469
01470
01471 v->UpdateInclination(true, true);
01472 return;
01473 }
01474 }
01475 }
01476
01477 v->UpdateViewport(true, true);
01478 }
01479
01480 static void ReverseTrainSwapVeh(Train *v, int l, int r)
01481 {
01482 Train *a, *b;
01483
01484
01485 for (a = v; l != 0; l--) a = a->Next();
01486 for (b = v; r != 0; r--) b = b->Next();
01487
01488 if (a != b) {
01489
01490 {
01491 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus & VS_HIDDEN);
01492 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus & VS_HIDDEN);
01493 a->vehstatus = tmp;
01494 }
01495
01496 Swap(a->track, b->track);
01497 Swap(a->direction, b->direction);
01498 Swap(a->x_pos, b->x_pos);
01499 Swap(a->y_pos, b->y_pos);
01500 Swap(a->tile, b->tile);
01501 Swap(a->z_pos, b->z_pos);
01502
01503 SwapTrainFlags(&a->gv_flags, &b->gv_flags);
01504
01505 UpdateStatusAfterSwap(a);
01506 UpdateStatusAfterSwap(b);
01507 } else {
01508
01509
01510
01511 SwapTrainFlags(&a->gv_flags, &a->gv_flags);
01512 UpdateStatusAfterSwap(a);
01513 }
01514
01515
01516 v->RailtypeChanged();
01517 }
01518
01519
01525 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01526 {
01527 return (v->type == VEH_TRAIN) ? v : NULL;
01528 }
01529
01530
01537 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01538 {
01539 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01540
01541 Train *t = Train::From(v);
01542 if (!t->IsFrontEngine()) return NULL;
01543
01544 TileIndex tile = *(TileIndex *)data;
01545
01546 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01547
01548 return t;
01549 }
01550
01551
01558 static bool TrainApproachingCrossing(TileIndex tile)
01559 {
01560 assert(IsLevelCrossingTile(tile));
01561
01562 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01563 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01564
01565 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01566
01567 dir = ReverseDiagDir(dir);
01568 tile_from = tile + TileOffsByDiagDir(dir);
01569
01570 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01571 }
01572
01573
01580 void UpdateLevelCrossing(TileIndex tile, bool sound)
01581 {
01582 assert(IsLevelCrossingTile(tile));
01583
01584
01585 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01586
01587 if (new_state != IsCrossingBarred(tile)) {
01588 if (new_state && sound) {
01589 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01590 }
01591 SetCrossingBarred(tile, new_state);
01592 MarkTileDirtyByTile(tile);
01593 }
01594 }
01595
01596
01602 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01603 {
01604 if (!IsCrossingBarred(tile)) {
01605 BarCrossing(tile);
01606 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01607 MarkTileDirtyByTile(tile);
01608 }
01609 }
01610
01611
01617 static void AdvanceWagonsBeforeSwap(Train *v)
01618 {
01619 Train *base = v;
01620 Train *first = base;
01621 Train *last = v->Last();
01622 uint length = CountVehiclesInChain(v);
01623
01624 while (length > 2) {
01625 last = last->Previous();
01626 first = first->Next();
01627
01628 int differential = base->gcache.cached_veh_length - last->gcache.cached_veh_length;
01629
01630
01631
01632 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01633
01634 base = first;
01635 length -= 2;
01636 }
01637 }
01638
01639
01645 static void AdvanceWagonsAfterSwap(Train *v)
01646 {
01647
01648 Train *dep = v;
01649 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01650 dep = dep->Next();
01651 }
01652
01653 Train *leave = dep->Next();
01654
01655 if (leave != NULL) {
01656
01657 int d = TicksToLeaveDepot(dep);
01658
01659 if (d <= 0) {
01660 leave->vehstatus &= ~VS_HIDDEN;
01661 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01662 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01663 }
01664 } else {
01665 dep = NULL;
01666 }
01667
01668 Train *base = v;
01669 Train *first = base;
01670 Train *last = v->Last();
01671 uint length = CountVehiclesInChain(v);
01672
01673
01674
01675 bool nomove = (dep == NULL);
01676
01677 while (length > 2) {
01678
01679
01680 if (base == dep) break;
01681
01682
01683 if (last == dep) nomove = true;
01684
01685 last = last->Previous();
01686 first = first->Next();
01687
01688 int differential = last->gcache.cached_veh_length - base->gcache.cached_veh_length;
01689
01690
01691 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01692
01693 base = first;
01694 length -= 2;
01695 }
01696 }
01697
01698
01699 static void ReverseTrainDirection(Train *v)
01700 {
01701 if (IsRailDepotTile(v->tile)) {
01702 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01703 }
01704
01705
01706 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01707
01708
01709 TileIndex crossing = TrainApproachingCrossingTile(v);
01710
01711
01712 int r = CountVehiclesInChain(v) - 1;
01713
01714 AdvanceWagonsBeforeSwap(v);
01715
01716
01717 int l = 0;
01718 do {
01719 ReverseTrainSwapVeh(v, l++, r--);
01720 } while (l <= r);
01721
01722 AdvanceWagonsAfterSwap(v);
01723
01724 if (IsRailDepotTile(v->tile)) {
01725 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01726 }
01727
01728 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01729
01730 ClrBit(v->flags, VRF_REVERSING);
01731
01732
01733 v->ConsistChanged(true);
01734
01735
01736 for (Train *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01737
01738
01739 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01740
01741
01742 crossing = TrainApproachingCrossingTile(v);
01743 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01744
01745
01746 if (v->track == TRACK_BIT_DEPOT) {
01747
01748 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01749 ClrBit(v->flags, VRF_TRAIN_STUCK);
01750 return;
01751 }
01752
01753
01754
01755 DiagDirection dir = TrainExitDir(v->direction, v->track);
01756 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01757
01758 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01759
01760
01761 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01762 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01763 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01764
01765 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01766 if (TryPathReserve(v, false, first_tile_okay)) {
01767
01768 CheckNextTrainTile(v);
01769 } else if (v->current_order.GetType() != OT_LOADING) {
01770
01771 MarkTrainAsStuck(v);
01772 }
01773 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01774
01775 ClrBit(v->flags, VRF_TRAIN_STUCK);
01776 v->wait_counter = 0;
01777 }
01778 }
01779
01789 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01790 {
01791 Train *v = Train::GetIfValid(p1);
01792 if (v == NULL) return CMD_ERROR;
01793
01794 CommandCost ret = CheckOwnership(v->owner);
01795 if (ret.Failed()) return ret;
01796
01797 if (p2 != 0) {
01798
01799
01800 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01801 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01802 }
01803 if (!HasBit(EngInfo(v->engine_type)->misc_flags, EF_RAIL_FLIPS)) return CMD_ERROR;
01804
01805 Train *front = v->First();
01806
01807 if (!front->IsStoppedInDepot()) {
01808 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01809 }
01810
01811 if (flags & DC_EXEC) {
01812 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01813
01814 front->ConsistChanged(false);
01815 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
01816 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
01817 SetWindowDirty(WC_VEHICLE_VIEW, front->index);
01818 SetWindowClassesDirty(WC_TRAINS_LIST);
01819 }
01820 } else {
01821
01822 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01823
01824 if (flags & DC_EXEC) {
01825
01826 if (v->current_order.IsType(OT_LOADING)) {
01827 const Vehicle *last = v;
01828 while (last->Next() != NULL) last = last->Next();
01829
01830
01831 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01832 v->LeaveStation();
01833 }
01834 }
01835
01836
01837 v->force_proceed = TFP_NONE;
01838 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01839
01840 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01841 ToggleBit(v->flags, VRF_REVERSING);
01842 } else {
01843 v->cur_speed = 0;
01844 v->SetLastSpeed();
01845 HideFillingPercent(&v->fill_percent_te_id);
01846 ReverseTrainDirection(v);
01847 }
01848 }
01849 }
01850 return CommandCost();
01851 }
01852
01862 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01863 {
01864 Train *t = Train::GetIfValid(p1);
01865 if (t == NULL) return CMD_ERROR;
01866
01867 CommandCost ret = CheckOwnership(t->owner);
01868 if (ret.Failed()) return ret;
01869
01870
01871 if (flags & DC_EXEC) {
01872
01873
01874
01875
01876
01877 t->force_proceed = t->force_proceed == TFP_SIGNAL ? TFP_NONE : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? TFP_STUCK : TFP_SIGNAL;
01878 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
01879 }
01880
01881 return CommandCost();
01882 }
01883
01888 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
01889 {
01890 assert(!(v->vehstatus & VS_CRASHED));
01891
01892 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
01893
01894 PBSTileInfo origin = FollowTrainReservation(v);
01895 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
01896
01897 switch (_settings_game.pf.pathfinder_for_trains) {
01898 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
01899 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
01900
01901 default: NOT_REACHED();
01902 }
01903 }
01904
01905 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
01906 {
01907 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
01908 if (tfdd.best_length == UINT_MAX) return false;
01909
01910 if (location != NULL) *location = tfdd.tile;
01911 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
01912 if (reverse != NULL) *reverse = tfdd.reverse;
01913
01914 return true;
01915 }
01916
01917 void Train::PlayLeaveStationSound() const
01918 {
01919 static const SoundFx sfx[] = {
01920 SND_04_TRAIN,
01921 SND_0A_TRAIN_HORN,
01922 SND_0A_TRAIN_HORN,
01923 SND_47_MAGLEV_2,
01924 SND_41_MAGLEV
01925 };
01926
01927 if (PlayVehicleSound(this, VSE_START)) return;
01928
01929 EngineID engtype = this->engine_type;
01930 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
01931 }
01932
01934 static void CheckNextTrainTile(Train *v)
01935 {
01936
01937 if (_settings_game.pf.path_backoff_interval == 255) return;
01938
01939
01940 if (v->track == TRACK_BIT_DEPOT) return;
01941
01942 switch (v->current_order.GetType()) {
01943
01944 case OT_GOTO_DEPOT:
01945 if (v->tile == v->dest_tile) return;
01946 break;
01947
01948 case OT_GOTO_WAYPOINT:
01949
01950 if (IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
01951 break;
01952
01953 case OT_NOTHING:
01954 case OT_LEAVESTATION:
01955 case OT_LOADING:
01956
01957 if (v->GetNumOrders() > 0) return;
01958 break;
01959
01960 default:
01961 break;
01962 }
01963
01964 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
01965
01966 Trackdir td = v->GetVehicleTrackdir();
01967
01968
01969 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
01970 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
01971 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
01972
01973 CFollowTrackRail ft(v);
01974 if (!ft.Follow(v->tile, td)) return;
01975
01976 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
01977
01978 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
01979 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
01980
01981 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
01982 if (_settings_game.pf.forbid_90_deg) {
01983 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
01984 }
01985 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
01986 }
01987 }
01988 }
01989 }
01990
01991 static bool CheckTrainStayInDepot(Train *v)
01992 {
01993
01994 for (const Train *u = v; u != NULL; u = u->Next()) {
01995 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
01996 }
01997
01998
01999 if (v->gcache.cached_power == 0) {
02000 v->vehstatus |= VS_STOPPED;
02001 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02002 return true;
02003 }
02004
02005 SigSegState seg_state;
02006
02007 if (v->force_proceed == TFP_NONE) {
02008
02009 if (++v->wait_counter < 37) {
02010 SetWindowClassesDirty(WC_TRAINS_LIST);
02011 return true;
02012 }
02013
02014 v->wait_counter = 0;
02015
02016 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02017 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02018
02019 SetWindowClassesDirty(WC_TRAINS_LIST);
02020 return true;
02021 }
02022 } else {
02023 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02024 }
02025
02026
02027 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02028
02029 if (HasDepotReservation(v->tile)) return true;
02030 SetDepotReservation(v->tile, true);
02031 VehicleEnterDepot(v);
02032 return true;
02033 }
02034
02035
02036 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == TFP_NONE) {
02037
02038 SetWindowClassesDirty(WC_TRAINS_LIST);
02039 MarkTrainAsStuck(v);
02040 return true;
02041 }
02042
02043 SetDepotReservation(v->tile, true);
02044 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02045
02046 VehicleServiceInDepot(v);
02047 SetWindowClassesDirty(WC_TRAINS_LIST);
02048 v->PlayLeaveStationSound();
02049
02050 v->track = TRACK_BIT_X;
02051 if (v->direction & 2) v->track = TRACK_BIT_Y;
02052
02053 v->vehstatus &= ~VS_HIDDEN;
02054 v->cur_speed = 0;
02055
02056 v->UpdateDeltaXY(v->direction);
02057 v->cur_image = v->GetImage(v->direction);
02058 VehicleMove(v, false);
02059 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02060 v->UpdateAcceleration();
02061 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02062
02063 return false;
02064 }
02065
02067 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02068 {
02069 DiagDirection dir = TrackdirToExitdir(track_dir);
02070
02071 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02072
02073 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02074 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02075
02076 if (TunnelBridgeIsFree(tile, end, v).Succeeded()) {
02077
02078 SetTunnelBridgeReservation(tile, false);
02079 SetTunnelBridgeReservation(end, false);
02080
02081 if (_settings_client.gui.show_track_reservation) {
02082 MarkTileDirtyByTile(tile);
02083 MarkTileDirtyByTile(end);
02084 }
02085 }
02086 }
02087 } else if (IsRailStationTile(tile)) {
02088 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02089
02090
02091 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02092 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02093 }
02094 } else {
02095
02096 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02097 }
02098 }
02099
02101 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02102 {
02103 assert(v->IsFrontEngine());
02104
02105 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02106 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02107 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02108 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02109
02110
02111 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02112
02113 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02114 while (ft.Follow(tile, td)) {
02115 tile = ft.m_new_tile;
02116 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02117 td = RemoveFirstTrackdir(&bits);
02118 assert(bits == TRACKDIR_BIT_NONE);
02119
02120 if (!IsValidTrackdir(td)) break;
02121
02122 if (IsTileType(tile, MP_RAILWAY)) {
02123 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02124
02125 UnreserveRailTrack(tile, TrackdirToTrack(td));
02126 break;
02127 }
02128 if (HasPbsSignalOnTrackdir(tile, td)) {
02129 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02130
02131 break;
02132 } else {
02133
02134 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02135 MarkTileDirtyByTile(tile);
02136 }
02137 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02138 break;
02139 }
02140 }
02141
02142
02143 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);
02144
02145 free_tile = true;
02146 }
02147 }
02148
02149 static const byte _initial_tile_subcoord[6][4][3] = {
02150 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02151 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02152 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02153 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02154 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02155 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02156 };
02157
02170 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool &path_found, bool do_track_reservation, PBSTileInfo *dest)
02171 {
02172 switch (_settings_game.pf.pathfinder_for_trains) {
02173 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02174 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02175
02176 default: NOT_REACHED();
02177 }
02178 }
02179
02185 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02186 {
02187 PBSTileInfo origin = FollowTrainReservation(v);
02188
02189 CFollowTrackRail ft(v);
02190
02191 TileIndex tile = origin.tile;
02192 Trackdir cur_td = origin.trackdir;
02193 while (ft.Follow(tile, cur_td)) {
02194 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02195
02196 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02197 }
02198
02199 if (_settings_game.pf.forbid_90_deg) {
02200 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02201 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02202 }
02203
02204
02205 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02206 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02207
02208
02209
02210
02211
02212
02213 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02214
02215
02216
02217 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02218
02219
02220 if (new_tracks != NULL) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02221 if (enterdir != NULL) *enterdir = ft.m_exitdir;
02222 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02223 }
02224
02225 tile = ft.m_new_tile;
02226 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02227
02228 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02229 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02230 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02231
02232 return PBSTileInfo(tile, cur_td, true);
02233 }
02234
02235 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02236 }
02237
02238 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02239
02240 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02241 }
02242
02243
02244 tile = origin.tile;
02245 cur_td = origin.trackdir;
02246 TileIndex stopped = ft.m_old_tile;
02247 Trackdir stopped_td = ft.m_old_td;
02248 while (tile != stopped || cur_td != stopped_td) {
02249 if (!ft.Follow(tile, cur_td)) break;
02250
02251 if (_settings_game.pf.forbid_90_deg) {
02252 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02253 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02254 }
02255 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02256
02257 tile = ft.m_new_tile;
02258 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02259
02260 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02261 }
02262
02263
02264 return PBSTileInfo();
02265 }
02266
02277 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02278 {
02279 switch (_settings_game.pf.pathfinder_for_trains) {
02280 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02281 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02282
02283 default: NOT_REACHED();
02284 }
02285 }
02286
02288 class VehicleOrderSaver
02289 {
02290 private:
02291 Train *v;
02292 Order old_order;
02293 TileIndex old_dest_tile;
02294 StationID old_last_station_visited;
02295 VehicleOrderID index;
02296 bool suppress_implicit_orders;
02297
02298 public:
02299 VehicleOrderSaver(Train *_v) :
02300 v(_v),
02301 old_order(_v->current_order),
02302 old_dest_tile(_v->dest_tile),
02303 old_last_station_visited(_v->last_station_visited),
02304 index(_v->cur_real_order_index),
02305 suppress_implicit_orders(HasBit(_v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS))
02306 {
02307 }
02308
02309 ~VehicleOrderSaver()
02310 {
02311 this->v->current_order = this->old_order;
02312 this->v->dest_tile = this->old_dest_tile;
02313 this->v->last_station_visited = this->old_last_station_visited;
02314 SB(this->v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS, 1, suppress_implicit_orders ? 1: 0);
02315 }
02316
02322 bool SwitchToNextOrder(bool skip_first)
02323 {
02324 if (this->v->GetNumOrders() == 0) return false;
02325
02326 if (skip_first) ++this->index;
02327
02328 int conditional_depth = 0;
02329
02330 do {
02331
02332 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02333
02334 Order *order = this->v->GetOrder(this->index);
02335 assert(order != NULL);
02336
02337 switch (order->GetType()) {
02338 case OT_GOTO_DEPOT:
02339
02340 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02341 case OT_GOTO_STATION:
02342 case OT_GOTO_WAYPOINT:
02343 this->v->current_order = *order;
02344 UpdateOrderDest(this->v, order);
02345 return true;
02346 case OT_CONDITIONAL: {
02347 if (conditional_depth > this->v->GetNumOrders()) return false;
02348 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02349 if (next != INVALID_VEH_ORDER_ID) {
02350 conditional_depth++;
02351 this->index = next;
02352
02353 continue;
02354 }
02355 break;
02356 }
02357 default:
02358 break;
02359 }
02360
02361
02362 ++this->index;
02363 } while (this->index != this->v->cur_real_order_index);
02364
02365 return false;
02366 }
02367 };
02368
02369
02370 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02371 {
02372 Track best_track = INVALID_TRACK;
02373 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02374 bool changed_signal = false;
02375
02376 assert((tracks & ~TRACK_BIT_MASK) == 0);
02377
02378 if (got_reservation != NULL) *got_reservation = false;
02379
02380
02381 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02382
02383 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02384
02385
02386 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02387 Track track = FindFirstTrack(tracks);
02388
02389 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02390 do_track_reservation = true;
02391 changed_signal = true;
02392 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02393 } else if (!do_track_reservation) {
02394 return track;
02395 }
02396 best_track = track;
02397 }
02398
02399 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02400 DiagDirection dest_enterdir = enterdir;
02401 if (do_track_reservation) {
02402
02403
02404
02405 CheckIfTrainNeedsService(v);
02406 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02407
02408 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02409 if (res_dest.tile == INVALID_TILE) {
02410
02411 if (mark_stuck) MarkTrainAsStuck(v);
02412 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02413 return FindFirstTrack(tracks);
02414 }
02415 }
02416
02417
02418 VehicleOrderSaver orders(v);
02419
02420
02421
02422
02423
02424
02425
02426 if (v->current_order.IsType(OT_LEAVESTATION)) {
02427 orders.SwitchToNextOrder(false);
02428 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02429 v->current_order.IsType(OT_GOTO_STATION) ?
02430 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02431 v->tile == v->dest_tile))) {
02432 orders.SwitchToNextOrder(true);
02433 }
02434
02435 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02436
02437 bool path_found = true;
02438 TileIndex new_tile = res_dest.tile;
02439
02440 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, path_found, do_track_reservation, &res_dest);
02441 if (new_tile == tile) best_track = next_track;
02442 v->HandlePathfindingResult(path_found);
02443 }
02444
02445
02446 if (!do_track_reservation) return best_track;
02447
02448
02449 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02450 if (mark_stuck) MarkTrainAsStuck(v);
02451 FreeTrainTrackReservation(v);
02452 return best_track;
02453 }
02454
02455
02456 if (res_dest.tile == INVALID_TILE) {
02457
02458 PBSTileInfo origin = FollowTrainReservation(v);
02459 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02460 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02461 best_track = FindFirstTrack(res);
02462 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02463 if (got_reservation != NULL) *got_reservation = true;
02464 if (changed_signal) MarkTileDirtyByTile(tile);
02465 } else {
02466 FreeTrainTrackReservation(v);
02467 if (mark_stuck) MarkTrainAsStuck(v);
02468 }
02469 return best_track;
02470 }
02471
02472 if (got_reservation != NULL) *got_reservation = true;
02473
02474
02475 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02476
02477 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02478 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02479 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02480 if (_settings_game.pf.forbid_90_deg) {
02481 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02482 }
02483
02484
02485 if (orders.SwitchToNextOrder(true)) {
02486 PBSTileInfo cur_dest;
02487 bool path_found;
02488 DoTrainPathfind(v, next_tile, exitdir, reachable, path_found, true, &cur_dest);
02489 if (cur_dest.tile != INVALID_TILE) {
02490 res_dest = cur_dest;
02491 if (res_dest.okay) continue;
02492
02493 FreeTrainTrackReservation(v);
02494 if (mark_stuck) MarkTrainAsStuck(v);
02495 if (got_reservation != NULL) *got_reservation = false;
02496 changed_signal = false;
02497 break;
02498 }
02499 }
02500
02501 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02502 FreeTrainTrackReservation(v);
02503 if (mark_stuck) MarkTrainAsStuck(v);
02504 if (got_reservation != NULL) *got_reservation = false;
02505 changed_signal = false;
02506 }
02507 break;
02508 }
02509
02510 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02511
02512 if (changed_signal) MarkTileDirtyByTile(tile);
02513
02514 return best_track;
02515 }
02516
02525 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02526 {
02527 assert(v->IsFrontEngine());
02528
02529
02530
02531
02532 if (v->track == TRACK_BIT_DEPOT) {
02533 if (HasDepotReservation(v->tile)) {
02534 if (mark_as_stuck) MarkTrainAsStuck(v);
02535 return false;
02536 } else {
02537
02538 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02539 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02540 }
02541 }
02542
02543 Vehicle *other_train = NULL;
02544 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02545
02546
02547
02548
02549
02550 if (other_train != NULL && other_train->index != v->index) {
02551 if (mark_as_stuck) MarkTrainAsStuck(v);
02552 return false;
02553 }
02554
02555 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02556
02557 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02558 ClrBit(v->flags, VRF_TRAIN_STUCK);
02559 return true;
02560 }
02561
02562
02563 if (v->track == TRACK_BIT_DEPOT) {
02564 SetDepotReservation(v->tile, true);
02565 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02566 }
02567
02568 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02569 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02570 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02571
02572 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02573
02574 bool res_made = false;
02575 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02576
02577 if (!res_made) {
02578
02579 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02580 return false;
02581 }
02582
02583 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02584 v->wait_counter = 0;
02585 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02586 }
02587 ClrBit(v->flags, VRF_TRAIN_STUCK);
02588 return true;
02589 }
02590
02591
02592 static bool CheckReverseTrain(const Train *v)
02593 {
02594 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02595 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02596 !(v->direction & 1)) {
02597 return false;
02598 }
02599
02600 assert(v->track != TRACK_BIT_NONE);
02601
02602 switch (_settings_game.pf.pathfinder_for_trains) {
02603 case VPF_NPF: return NPFTrainCheckReverse(v);
02604 case VPF_YAPF: return YapfTrainCheckReverse(v);
02605
02606 default: NOT_REACHED();
02607 }
02608 }
02609
02610 TileIndex Train::GetOrderStationLocation(StationID station)
02611 {
02612 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02613
02614 const Station *st = Station::Get(station);
02615 if (!(st->facilities & FACIL_TRAIN)) {
02616
02617 this->IncrementRealOrderIndex();
02618 return 0;
02619 }
02620
02621 return st->xy;
02622 }
02623
02624 void Train::MarkDirty()
02625 {
02626 Train *v = this;
02627 do {
02628 v->UpdateViewport(false, false);
02629 } while ((v = v->Next()) != NULL);
02630
02631
02632 this->CargoChanged();
02633 this->UpdateAcceleration();
02634 }
02635
02643 int Train::UpdateSpeed()
02644 {
02645 switch (_settings_game.vehicle.train_acceleration_model) {
02646 default: NOT_REACHED();
02647 case AM_ORIGINAL:
02648 return this->DoUpdateSpeed(this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2), 0, this->gcache.cached_max_track_speed);
02649
02650 case AM_REALISTIC:
02651 return this->DoUpdateSpeed(this->GetAcceleration(), this->GetAccelerationStatus() == AS_BRAKE ? 0 : 2, this->GetCurrentMaxSpeed());
02652 }
02653 }
02654
02660 static void TrainEnterStation(Train *v, StationID station)
02661 {
02662 v->last_station_visited = station;
02663
02664
02665 Station *st = Station::Get(station);
02666 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02667 st->had_vehicle_of_type |= HVOT_TRAIN;
02668 SetDParam(0, st->index);
02669 AddVehicleNewsItem(
02670 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02671 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
02672 v->index,
02673 st->index
02674 );
02675 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
02676 }
02677
02678 v->force_proceed = TFP_NONE;
02679 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02680
02681 v->BeginLoading();
02682
02683 TriggerStationAnimation(st, v->tile, SAT_TRAIN_ARRIVES);
02684 }
02685
02686
02687 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
02688 {
02689 return IsTileOwner(tile, v->owner) &&
02690 (!v->IsFrontEngine() || HasBit(v->compatible_railtypes, GetRailType(tile)));
02691 }
02692
02693 struct RailtypeSlowdownParams {
02694 byte small_turn, large_turn;
02695 byte z_up;
02696 byte z_down;
02697 };
02698
02699 static const RailtypeSlowdownParams _railtype_slowdown[] = {
02700
02701 {256 / 4, 256 / 2, 256 / 4, 2},
02702 {256 / 4, 256 / 2, 256 / 4, 2},
02703 {256 / 4, 256 / 2, 256 / 4, 2},
02704 {0, 256 / 2, 256 / 4, 2},
02705 };
02706
02708 static inline void AffectSpeedByZChange(Train *v, byte old_z)
02709 {
02710 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
02711
02712 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
02713
02714 if (old_z < v->z_pos) {
02715 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
02716 } else {
02717 uint16 spd = v->cur_speed + rsp->z_down;
02718 if (spd <= v->gcache.cached_max_track_speed) v->cur_speed = spd;
02719 }
02720 }
02721
02722 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
02723 {
02724 if (IsTileType(tile, MP_RAILWAY) &&
02725 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
02726 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
02727 Trackdir trackdir = FindFirstTrackdir(tracks);
02728 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
02729
02730 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
02731 }
02732 }
02733 return false;
02734 }
02735
02739 void Train::ReserveTrackUnderConsist() const
02740 {
02741 for (const Train *u = this; u != NULL; u = u->Next()) {
02742 switch (u->track) {
02743 case TRACK_BIT_WORMHOLE:
02744 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
02745 break;
02746 case TRACK_BIT_DEPOT:
02747 break;
02748 default:
02749 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
02750 break;
02751 }
02752 }
02753 }
02754
02755 uint Train::Crash(bool flooded)
02756 {
02757 uint pass = 0;
02758 if (this->IsFrontEngine()) {
02759 pass += 2;
02760
02761
02762
02763 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
02764 for (const Train *v = this; v != NULL; v = v->Next()) {
02765 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
02766 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
02767
02768
02769 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
02770 }
02771 }
02772
02773
02774
02775 TileIndex crossing = TrainApproachingCrossingTile(this);
02776 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
02777
02778
02779 HideFillingPercent(&this->fill_percent_te_id);
02780 }
02781
02782 pass += this->GroundVehicleBase::Crash(flooded);
02783
02784 this->crash_anim_pos = flooded ? 4000 : 1;
02785 return pass;
02786 }
02787
02794 static uint TrainCrashed(Train *v)
02795 {
02796 uint num = 0;
02797
02798
02799 if (!(v->vehstatus & VS_CRASHED)) {
02800 num = v->Crash();
02801 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
02802 }
02803
02804
02805
02806 v->ReserveTrackUnderConsist();
02807
02808 return num;
02809 }
02810
02811 struct TrainCollideChecker {
02812 Train *v;
02813 uint num;
02814 };
02815
02816 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
02817 {
02818 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
02819
02820
02821 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
02822
02823
02824 if (v->owner != tcc->v->owner) return NULL;
02825
02826
02827 Train *coll = Train::From(v)->First();
02828
02829
02830 if (coll == tcc->v) return NULL;
02831
02832 int x_diff = v->x_pos - tcc->v->x_pos;
02833 int y_diff = v->y_pos - tcc->v->y_pos;
02834
02835
02836
02837
02838
02839 uint hash = (y_diff + 7) | (x_diff + 7);
02840 if (hash & ~15) return NULL;
02841
02842
02843 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
02844
02845
02846 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
02847
02848
02849 tcc->num += TrainCrashed(tcc->v);
02850 tcc->num += TrainCrashed(coll);
02851
02852 return NULL;
02853 }
02854
02861 static bool CheckTrainCollision(Train *v)
02862 {
02863
02864 if (v->track == TRACK_BIT_DEPOT) return false;
02865
02866 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
02867
02868 TrainCollideChecker tcc;
02869 tcc.v = v;
02870 tcc.num = 0;
02871
02872
02873 if (v->track == TRACK_BIT_WORMHOLE) {
02874 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
02875 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
02876 } else {
02877 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
02878 }
02879
02880
02881 if (tcc.num == 0) return false;
02882
02883 SetDParam(0, tcc.num);
02884 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
02885 NS_ACCIDENT,
02886 v->index
02887 );
02888
02889 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
02890 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
02891 return true;
02892 }
02893
02894 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
02895 {
02896 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
02897
02898 Train *t = Train::From(v);
02899 DiagDirection exitdir = *(DiagDirection *)data;
02900
02901
02902 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
02903
02904 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
02905
02906 return t;
02907 }
02908
02909 static void TrainController(Train *v, Vehicle *nomove)
02910 {
02911 Train *first = v->First();
02912 Train *prev;
02913 bool direction_changed = false;
02914
02915
02916 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
02917 DiagDirection enterdir = DIAGDIR_BEGIN;
02918 bool update_signals_crossing = false;
02919
02920 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
02921 if (v->track != TRACK_BIT_WORMHOLE) {
02922
02923 if (gp.old_tile == gp.new_tile) {
02924
02925 if (v->track == TRACK_BIT_DEPOT) {
02926
02927 gp.x = v->x_pos;
02928 gp.y = v->y_pos;
02929 } else {
02930
02931
02932
02933 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v)) return;
02934
02935 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
02936 if (HasBit(r, VETS_CANNOT_ENTER)) {
02937 goto invalid_rail;
02938 }
02939 if (HasBit(r, VETS_ENTERED_STATION)) {
02940
02941 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
02942 }
02943 }
02944 } else {
02945
02946
02947
02948 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
02949 assert(IsValidDiagDirection(enterdir));
02950
02951
02952
02953 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
02954 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
02955
02956 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
02957 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
02958
02959 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
02960 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
02961
02962
02963 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
02964 }
02965
02966 if (bits == TRACK_BIT_NONE) goto invalid_rail;
02967
02968
02969
02970 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
02971
02972 TrackBits chosen_track;
02973 if (prev == NULL) {
02974
02975
02976 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
02977 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
02978
02979 if (v->force_proceed != TFP_NONE && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
02980
02981
02982
02983
02984 Trackdir dir = FindFirstTrackdir(trackdirbits);
02985 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
02986 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
02987
02988
02989 v->force_proceed = (v->force_proceed == TFP_SIGNAL) ? TFP_STUCK : TFP_NONE;
02990 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02991 }
02992 }
02993
02994
02995 if ((red_signals & chosen_track) && v->force_proceed == TFP_NONE) {
02996
02997 Trackdir i = FindFirstTrackdir(trackdirbits);
02998
02999
03000 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return;
03001
03002 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03003 v->cur_speed = 0;
03004 v->subspeed = 0;
03005 v->progress = 255 - 100;
03006 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return;
03007 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03008 v->cur_speed = 0;
03009 v->subspeed = 0;
03010 v->progress = 255 - 10;
03011 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03012 DiagDirection exitdir = TrackdirToExitdir(i);
03013 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03014
03015 exitdir = ReverseDiagDir(exitdir);
03016
03017
03018 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return;
03019 }
03020 }
03021
03022
03023
03024
03025
03026 if (!_settings_game.pf.reverse_at_signals && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03027 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03028 v->wait_counter = 0;
03029 return;
03030 }
03031 goto reverse_train_direction;
03032 } else {
03033 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03034 }
03035 } else {
03036
03037 if (prev->tile == gp.new_tile) {
03038
03039 if (prev->track == TRACK_BIT_WORMHOLE) {
03040
03041
03042 assert(IsTunnel(prev->tile));
03043 chosen_track = bits;
03044 } else {
03045 chosen_track = prev->track;
03046 }
03047 } else {
03048
03049
03050
03051
03052
03053
03054
03055 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03056 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03057 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03058 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03059 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03060 };
03061 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03062 assert(IsValidDiagDirection(exitdir));
03063 chosen_track = _connecting_track[enterdir][exitdir];
03064 }
03065 chosen_track &= bits;
03066 }
03067
03068
03069 assert(
03070 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03071 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03072 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03073
03074
03075 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03076 gp.x = (gp.x & ~0xF) | b[0];
03077 gp.y = (gp.y & ~0xF) | b[1];
03078 Direction chosen_dir = (Direction)b[2];
03079
03080
03081 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03082 if (HasBit(r, VETS_CANNOT_ENTER)) {
03083 goto invalid_rail;
03084 }
03085
03086 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03087 Track track = FindFirstTrack(chosen_track);
03088 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03089 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03090 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03091 MarkTileDirtyByTile(gp.new_tile);
03092 }
03093
03094
03095 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03096
03097 v->tile = gp.new_tile;
03098
03099 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03100 v->First()->RailtypeChanged();
03101 }
03102
03103 v->track = chosen_track;
03104 assert(v->track);
03105 }
03106
03107
03108
03109 update_signals_crossing = true;
03110
03111 if (chosen_dir != v->direction) {
03112 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03113 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03114 DirDiff diff = DirDifference(v->direction, chosen_dir);
03115 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03116 }
03117 direction_changed = true;
03118 v->direction = chosen_dir;
03119 }
03120
03121 if (v->IsFrontEngine()) {
03122 v->wait_counter = 0;
03123
03124
03125 TileIndex crossing = TrainApproachingCrossingTile(v);
03126 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03127
03128
03129 CheckNextTrainTile(v);
03130 }
03131
03132 if (HasBit(r, VETS_ENTERED_STATION)) {
03133
03134 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03135 }
03136 }
03137 } else {
03138
03139
03140
03141 if (!(v->vehstatus & VS_HIDDEN)) {
03142 Train *first = v->First();
03143 first->cur_speed = min(first->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03144 }
03145
03146 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03147
03148 if (v->IsFrontEngine()) {
03149 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03150 CheckNextTrainTile(v);
03151 }
03152
03153
03154 if (gp.old_tile == gp.new_tile) {
03155 gp.old_tile = GetOtherTunnelBridgeEnd(gp.old_tile);
03156 }
03157 } else {
03158 v->x_pos = gp.x;
03159 v->y_pos = gp.y;
03160 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03161 continue;
03162 }
03163 }
03164
03165
03166 v->UpdateDeltaXY(v->direction);
03167
03168 v->x_pos = gp.x;
03169 v->y_pos = gp.y;
03170
03171
03172 byte old_z = v->UpdateInclination(gp.new_tile != gp.old_tile, false);
03173
03174 if (prev == NULL) {
03175
03176 AffectSpeedByZChange(v, old_z);
03177 }
03178
03179 if (update_signals_crossing) {
03180 if (v->IsFrontEngine()) {
03181 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03182
03183
03184
03185
03186
03187
03188
03189
03190 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03191 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03192 !TryPathReserve(v)) {
03193 MarkTrainAsStuck(v);
03194 }
03195 }
03196 }
03197
03198
03199
03200 if (v->Next() == NULL) {
03201 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03202 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03203 }
03204 }
03205
03206
03207 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03208 }
03209
03210 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03211
03212 return;
03213
03214 invalid_rail:
03215
03216 if (prev != NULL) error("Disconnecting train");
03217
03218 reverse_train_direction:
03219 v->wait_counter = 0;
03220 v->cur_speed = 0;
03221 v->subspeed = 0;
03222 ReverseTrainDirection(v);
03223 }
03224
03231 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03232 {
03233 TrackBits *trackbits = (TrackBits *)data;
03234
03235 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03236 TrackBits train_tbits = Train::From(v)->track;
03237 if (train_tbits == TRACK_BIT_WORMHOLE) {
03238
03239 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03240 } else if (train_tbits != TRACK_BIT_DEPOT) {
03241 *trackbits |= train_tbits;
03242 }
03243 }
03244
03245 return NULL;
03246 }
03247
03255 static void DeleteLastWagon(Train *v)
03256 {
03257 Train *first = v->First();
03258
03259
03260
03261
03262 Train *u = v;
03263 for (; v->Next() != NULL; v = v->Next()) u = v;
03264 u->SetNext(NULL);
03265
03266 if (first != v) {
03267
03268 first->ConsistChanged(false);
03269
03270
03271 if (first->track == TRACK_BIT_DEPOT) {
03272 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03273 }
03274 }
03275
03276
03277 TrackBits trackbits = v->track;
03278 TileIndex tile = v->tile;
03279 Owner owner = v->owner;
03280
03281 delete v;
03282 v = NULL;
03283
03284 if (trackbits == TRACK_BIT_WORMHOLE) {
03285
03286 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03287 }
03288
03289 Track track = TrackBitsToTrack(trackbits);
03290 if (HasReservedTracks(tile, trackbits)) {
03291 UnreserveRailTrack(tile, track);
03292
03293
03294 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03295 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03296
03297
03298 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03299 Track t;
03300 FOR_EACH_SET_TRACK(t, remaining_trackbits) TryReserveRailTrack(tile, t);
03301 }
03302
03303
03304 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03305
03306
03307 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03308 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03309 } else {
03310 SetSignalsOnBothDir(tile, track, owner);
03311 }
03312 }
03313
03318 static void ChangeTrainDirRandomly(Train *v)
03319 {
03320 static const DirDiff delta[] = {
03321 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03322 };
03323
03324 do {
03325
03326 if (!(v->vehstatus & VS_HIDDEN)) {
03327 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03328 v->UpdateDeltaXY(v->direction);
03329 v->cur_image = v->GetImage(v->direction);
03330
03331
03332
03333 if (v->track != TRACK_BIT_WORMHOLE) v->UpdateInclination(false, false);
03334 }
03335 } while ((v = v->Next()) != NULL);
03336 }
03337
03343 static bool HandleCrashedTrain(Train *v)
03344 {
03345 int state = ++v->crash_anim_pos;
03346
03347 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03348 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03349 }
03350
03351 uint32 r;
03352 if (state <= 200 && Chance16R(1, 7, r)) {
03353 int index = (r * 10 >> 16);
03354
03355 Vehicle *u = v;
03356 do {
03357 if (--index < 0) {
03358 r = Random();
03359
03360 CreateEffectVehicleRel(u,
03361 GB(r, 8, 3) + 2,
03362 GB(r, 16, 3) + 2,
03363 GB(r, 0, 3) + 5,
03364 EV_EXPLOSION_SMALL);
03365 break;
03366 }
03367 } while ((u = u->Next()) != NULL);
03368 }
03369
03370 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03371
03372 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03373 bool ret = v->Next() != NULL;
03374 DeleteLastWagon(v);
03375 return ret;
03376 }
03377
03378 return true;
03379 }
03380
03382 static const uint16 _breakdown_speeds[16] = {
03383 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03384 };
03385
03386
03394 static bool TrainApproachingLineEnd(Train *v, bool signal)
03395 {
03396
03397 uint x = v->x_pos & 0xF;
03398 uint y = v->y_pos & 0xF;
03399
03400
03401
03402 switch (v->direction) {
03403 case DIR_N : x = ~x + ~y + 25; break;
03404 case DIR_NW: x = y;
03405 case DIR_NE: x = ~x + 16; break;
03406 case DIR_E : x = ~x + y + 9; break;
03407 case DIR_SE: x = y; break;
03408 case DIR_S : x = x + y - 7; break;
03409 case DIR_W : x = ~y + x + 9; break;
03410 default: break;
03411 }
03412
03413
03414
03415
03416
03417
03418
03419 if (!signal && x + VEHICLE_LENGTH / 2 >= TILE_SIZE) {
03420
03421 v->cur_speed = 0;
03422 ReverseTrainDirection(v);
03423 return false;
03424 }
03425
03426
03427 v->vehstatus |= VS_TRAIN_SLOWING;
03428 uint16 break_speed = _breakdown_speeds[x & 0xF];
03429 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03430
03431 return true;
03432 }
03433
03434
03440 static bool TrainCanLeaveTile(const Train *v)
03441 {
03442
03443 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03444
03445 TileIndex tile = v->tile;
03446
03447
03448 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03449 DiagDirection dir = GetTunnelBridgeDirection(tile);
03450 if (DiagDirToDir(dir) == v->direction) return false;
03451 }
03452
03453
03454 if (IsRailDepotTile(tile)) {
03455 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03456 if (DiagDirToDir(dir) == v->direction) return false;
03457 }
03458
03459 return true;
03460 }
03461
03462
03470 static TileIndex TrainApproachingCrossingTile(const Train *v)
03471 {
03472 assert(v->IsFrontEngine());
03473 assert(!(v->vehstatus & VS_CRASHED));
03474
03475 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03476
03477 DiagDirection dir = TrainExitDir(v->direction, v->track);
03478 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03479
03480
03481 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03482 !CheckCompatibleRail(v, tile)) {
03483 return INVALID_TILE;
03484 }
03485
03486 return tile;
03487 }
03488
03489
03496 static bool TrainCheckIfLineEnds(Train *v)
03497 {
03498
03499
03500 int t = v->breakdown_ctr;
03501 if (t > 1) {
03502 v->vehstatus |= VS_TRAIN_SLOWING;
03503
03504 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03505 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03506 } else {
03507 v->vehstatus &= ~VS_TRAIN_SLOWING;
03508 }
03509
03510 if (!TrainCanLeaveTile(v)) return true;
03511
03512
03513 DiagDirection dir = TrainExitDir(v->direction, v->track);
03514
03515 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03516
03517
03518 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03519 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03520
03521 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03522 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03523
03524
03525
03526
03527 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03528 if (_settings_game.pf.forbid_90_deg) {
03529 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03530 }
03531
03532
03533 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03534 return TrainApproachingLineEnd(v, false);
03535 }
03536
03537
03538 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
03539
03540
03541 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03542
03543 return true;
03544 }
03545
03546
03547 static bool TrainLocoHandler(Train *v, bool mode)
03548 {
03549
03550 if (v->vehstatus & VS_CRASHED) {
03551 return mode ? true : HandleCrashedTrain(v);
03552 }
03553
03554 if (v->force_proceed != TFP_NONE) {
03555 ClrBit(v->flags, VRF_TRAIN_STUCK);
03556 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03557 }
03558
03559
03560 if (v->HandleBreakdown()) return true;
03561
03562 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03563 ReverseTrainDirection(v);
03564 }
03565
03566
03567 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03568
03569 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03570 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03571 v->wait_counter = 0;
03572 v->cur_speed = 0;
03573 v->subspeed = 0;
03574 ClrBit(v->flags, VRF_LEAVING_STATION);
03575 ReverseTrainDirection(v);
03576 return true;
03577 } else if (HasBit(v->flags, VRF_LEAVING_STATION)) {
03578
03579
03580
03581 DiagDirection dir = TrainExitDir(v->direction, v->track);
03582 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
03583
03584 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
03585 TryPathReserve(v, true, true);
03586 }
03587 ClrBit(v->flags, VRF_LEAVING_STATION);
03588 }
03589
03590 v->HandleLoading(mode);
03591
03592 if (v->current_order.IsType(OT_LOADING)) return true;
03593
03594 if (CheckTrainStayInDepot(v)) return true;
03595
03596 if (!mode) v->ShowVisualEffect();
03597
03598
03599 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03600 CheckNextTrainTile(v);
03601 }
03602
03603
03604 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03605 ++v->wait_counter;
03606
03607
03608 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.reverse_at_signals;
03609
03610 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == TFP_NONE) return true;
03611 if (!TryPathReserve(v)) {
03612
03613 if (turn_around) ReverseTrainDirection(v);
03614
03615 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03616
03617 if (_settings_client.gui.lost_vehicle_warn && v->owner == _local_company) {
03618 SetDParam(0, v->index);
03619 AddVehicleNewsItem(
03620 STR_NEWS_TRAIN_IS_STUCK,
03621 NS_ADVICE,
03622 v->index
03623 );
03624 }
03625 v->wait_counter = 0;
03626 }
03627
03628 if (v->force_proceed == TFP_NONE) return true;
03629 ClrBit(v->flags, VRF_TRAIN_STUCK);
03630 v->wait_counter = 0;
03631 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03632 }
03633 }
03634
03635 if (v->current_order.IsType(OT_LEAVESTATION)) {
03636 v->current_order.Free();
03637 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03638 return true;
03639 }
03640
03641 int j = v->UpdateSpeed();
03642
03643
03644 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
03645
03646 v->force_proceed = TFP_NONE;
03647 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03648 }
03649
03650 int adv_spd = v->GetAdvanceDistance();
03651 if (j < adv_spd) {
03652
03653 if (v->cur_speed == 0) v->SetLastSpeed();
03654 } else {
03655 TrainCheckIfLineEnds(v);
03656
03657 for (;;) {
03658 j -= adv_spd;
03659 TrainController(v, NULL);
03660
03661 if (CheckTrainCollision(v)) break;
03662
03663 adv_spd = v->GetAdvanceDistance();
03664
03665
03666 if (j < adv_spd || v->cur_speed == 0) break;
03667
03668 OrderType order_type = v->current_order.GetType();
03669
03670 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
03671 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
03672 IsTileType(v->tile, MP_STATION) &&
03673 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
03674 ProcessOrders(v);
03675 }
03676 }
03677 v->SetLastSpeed();
03678 }
03679
03680 for (Train *u = v; u != NULL; u = u->Next()) {
03681 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
03682
03683 u->UpdateViewport(false, false);
03684 }
03685
03686 if (v->progress == 0) v->progress = j;
03687
03688 return true;
03689 }
03690
03691
03692
03693 Money Train::GetRunningCost() const
03694 {
03695 Money cost = 0;
03696 const Train *v = this;
03697
03698 do {
03699 const Engine *e = Engine::Get(v->engine_type);
03700 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
03701
03702 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
03703 if (cost_factor == 0) continue;
03704
03705
03706 if (v->IsMultiheaded()) cost_factor /= 2;
03707
03708 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->grf_prop.grffile);
03709 } while ((v = v->GetNextVehicle()) != NULL);
03710
03711 return cost;
03712 }
03713
03714
03715 bool Train::Tick()
03716 {
03717 this->tick_counter++;
03718
03719 if (this->IsFrontEngine()) {
03720 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
03721
03722 this->current_order_time++;
03723
03724 if (!TrainLocoHandler(this, false)) return false;
03725
03726 return TrainLocoHandler(this, true);
03727 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
03728
03729 if (++this->crash_anim_pos >= 4400) {
03730 delete this;
03731 return false;
03732 }
03733 }
03734
03735 return true;
03736 }
03737
03738 static void CheckIfTrainNeedsService(Train *v)
03739 {
03740 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
03741 if (v->IsInDepot()) {
03742 VehicleServiceInDepot(v);
03743 return;
03744 }
03745
03746 uint max_penalty;
03747 switch (_settings_game.pf.pathfinder_for_trains) {
03748 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
03749 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
03750 default: NOT_REACHED();
03751 }
03752
03753 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
03754
03755 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
03756 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
03757
03758
03759
03760 v->current_order.MakeDummy();
03761 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03762 }
03763 return;
03764 }
03765
03766 DepotID depot = GetDepotIndex(tfdd.tile);
03767
03768 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
03769 v->current_order.GetDestination() != depot &&
03770 !Chance16(3, 16)) {
03771 return;
03772 }
03773
03774 SetBit(v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
03775 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
03776 v->dest_tile = tfdd.tile;
03777 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03778 }
03779
03780 void Train::OnNewDay()
03781 {
03782 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
03783
03784 if (this->IsFrontEngine()) {
03785 CheckVehicleBreakdown(this);
03786 AgeVehicle(this);
03787
03788 CheckIfTrainNeedsService(this);
03789
03790 CheckOrders(this);
03791
03792
03793 if (this->current_order.IsType(OT_GOTO_STATION)) {
03794 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
03795 if (tile != INVALID_TILE) this->dest_tile = tile;
03796 }
03797
03798 if (this->running_ticks != 0) {
03799
03800 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
03801
03802 this->profit_this_year -= cost.GetCost();
03803 this->running_ticks = 0;
03804
03805 SubtractMoneyFromCompanyFract(this->owner, cost);
03806
03807 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
03808 SetWindowClassesDirty(WC_TRAINS_LIST);
03809 }
03810 } else if (this->IsEngine()) {
03811
03812 AgeVehicle(this);
03813 }
03814 }
03815
03816 Trackdir Train::GetVehicleTrackdir() const
03817 {
03818 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
03819
03820 if (this->track == TRACK_BIT_DEPOT) {
03821
03822 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
03823 }
03824
03825 if (this->track == TRACK_BIT_WORMHOLE) {
03826
03827 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
03828 }
03829
03830 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
03831 }