00001
00002
00003
00004
00005
00006
00007
00008
00009
00012 #include "stdafx.h"
00013 #include "gui.h"
00014 #include "articulated_vehicles.h"
00015 #include "command_func.h"
00016 #include "pathfinder/npf/npf_func.h"
00017 #include "pathfinder/yapf/yapf.hpp"
00018 #include "news_func.h"
00019 #include "company_func.h"
00020 #include "vehicle_gui.h"
00021 #include "newgrf_sound.h"
00022 #include "newgrf_text.h"
00023 #include "group.h"
00024 #include "strings_func.h"
00025 #include "functions.h"
00026 #include "window_func.h"
00027 #include "vehicle_func.h"
00028 #include "sound_func.h"
00029 #include "ai/ai.hpp"
00030 #include "newgrf_station.h"
00031 #include "effectvehicle_func.h"
00032 #include "gamelog.h"
00033 #include "network/network.h"
00034 #include "spritecache.h"
00035 #include "core/random_func.hpp"
00036 #include "company_base.h"
00037 #include "newgrf.h"
00038 #include "order_backup.h"
00039
00040 #include "table/strings.h"
00041 #include "table/train_cmd.h"
00042
00043 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck);
00044 static bool TrainCheckIfLineEnds(Train *v);
00045 static void TrainController(Train *v, Vehicle *nomove);
00046 static TileIndex TrainApproachingCrossingTile(const Train *v);
00047 static void CheckIfTrainNeedsService(Train *v);
00048 static void CheckNextTrainTile(Train *v);
00049
00050 static const byte _vehicle_initial_x_fract[4] = {10, 8, 4, 8};
00051 static const byte _vehicle_initial_y_fract[4] = { 8, 4, 8, 10};
00052
00053
00061 static inline DiagDirection TrainExitDir(Direction direction, TrackBits track)
00062 {
00063 static const TrackBits state_dir_table[DIAGDIR_END] = { TRACK_BIT_RIGHT, TRACK_BIT_LOWER, TRACK_BIT_LEFT, TRACK_BIT_UPPER };
00064
00065 DiagDirection diagdir = DirToDiagDir(direction);
00066
00067
00068 if (!HasBit(direction, 0) && track != state_dir_table[diagdir]) {
00069 diagdir = ChangeDiagDir(diagdir, DIAGDIRDIFF_90LEFT);
00070 }
00071
00072 return diagdir;
00073 }
00074
00075
00081 byte FreightWagonMult(CargoID cargo)
00082 {
00083 if (!CargoSpec::Get(cargo)->is_freight) return 1;
00084 return _settings_game.vehicle.freight_trains;
00085 }
00086
00092 static void RailVehicleLengthChanged(const Train *u)
00093 {
00094
00095 const Engine *engine = Engine::Get(u->engine_type);
00096 uint32 grfid = engine->grf_prop.grffile->grfid;
00097 GRFConfig *grfconfig = GetGRFConfig(grfid);
00098 if (GamelogGRFBugReverse(grfid, engine->grf_prop.local_id) || !HasBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH)) {
00099 ShowNewGrfVehicleError(u->engine_type, STR_NEWGRF_BROKEN, STR_NEWGRF_BROKEN_VEHICLE_LENGTH, GBUG_VEH_LENGTH, true);
00100 }
00101 }
00102
00104 void CheckTrainsLengths()
00105 {
00106 const Train *v;
00107 bool first = true;
00108
00109 FOR_ALL_TRAINS(v) {
00110 if (v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00111 for (const Train *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00112 if (u->track != TRACK_BIT_DEPOT) {
00113 if ((w->track != TRACK_BIT_DEPOT &&
00114 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->gcache.cached_veh_length) ||
00115 (w->track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00116 SetDParam(0, v->index);
00117 SetDParam(1, v->owner);
00118 ShowErrorMessage(STR_BROKEN_VEHICLE_LENGTH, INVALID_STRING_ID, WL_CRITICAL);
00119
00120 if (!_networking && first) {
00121 first = false;
00122 DoCommandP(0, PM_PAUSED_ERROR, 1, CMD_PAUSE);
00123 }
00124
00125 break;
00126 }
00127 }
00128 }
00129 }
00130 }
00131 }
00132
00137 void Train::RailtypeChanged()
00138 {
00139 for (Train *u = this; u != NULL; u = u->Next()) {
00140
00141 u->UpdateVisualEffect(false);
00142 }
00143 this->PowerChanged();
00144 if (this->IsFrontEngine()) this->UpdateAcceleration();
00145 }
00146
00153 void Train::ConsistChanged(bool same_length)
00154 {
00155 uint16 max_speed = UINT16_MAX;
00156
00157 assert(this->IsFrontEngine() || this->IsFreeWagon());
00158
00159 const RailVehicleInfo *rvi_v = RailVehInfo(this->engine_type);
00160 EngineID first_engine = this->IsFrontEngine() ? this->engine_type : INVALID_ENGINE;
00161 this->gcache.cached_total_length = 0;
00162 this->compatible_railtypes = RAILTYPES_NONE;
00163
00164 bool train_can_tilt = true;
00165
00166 for (Train *u = this; u != NULL; u = u->Next()) {
00167 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00168
00169
00170 assert(u->First() == this);
00171
00172
00173 u->gcache.first_engine = this == u ? INVALID_ENGINE : first_engine;
00174 u->railtype = rvi_u->railtype;
00175
00176 if (u->IsEngine()) first_engine = u->engine_type;
00177
00178
00179 u->tcache.user_def_data = rvi_u->user_def_data;
00180 this->InvalidateNewGRFCache();
00181 u->InvalidateNewGRFCache();
00182 }
00183
00184 for (Train *u = this; u != NULL; u = u->Next()) {
00185
00186 u->tcache.user_def_data = GetVehicleProperty(u, PROP_TRAIN_USER_DATA, u->tcache.user_def_data);
00187 this->InvalidateNewGRFCache();
00188 u->InvalidateNewGRFCache();
00189 }
00190
00191 for (Train *u = this; u != NULL; u = u->Next()) {
00192 const Engine *e_u = Engine::Get(u->engine_type);
00193 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00194
00195 if (!HasBit(e_u->info.misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00196
00197
00198 u->tcache.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->gcache.first_engine);
00199
00200
00201 u->colourmap = PAL_NONE;
00202
00203
00204 u->UpdateVisualEffect(true);
00205
00206 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00207 UsesWagonOverride(u) && !HasBit(u->vcache.cached_vis_effect, VE_DISABLE_WAGON_POWER)) {
00208
00209 SetBit(u->flags, VRF_POWEREDWAGON);
00210 } else {
00211 ClrBit(u->flags, VRF_POWEREDWAGON);
00212 }
00213
00214 if (!u->IsArticulatedPart()) {
00215
00216
00217 if (rvi_u->power > 0) {
00218 this->compatible_railtypes |= GetRailTypeInfo(u->railtype)->powered_railtypes;
00219 }
00220
00221
00222
00223 if (HasBit(u->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00224 u->railtype = RAILTYPE_RAIL;
00225 u->compatible_railtypes |= RAILTYPES_RAIL;
00226 }
00227
00228
00229 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00230 uint16 speed = GetVehicleProperty(u, PROP_TRAIN_SPEED, rvi_u->max_speed);
00231 if (speed != 0) max_speed = min(speed, max_speed);
00232 }
00233 }
00234
00235 u->cargo_cap = GetVehicleCapacity(u);
00236
00237
00238 uint16 veh_len = CALLBACK_FAILED;
00239 if (HasBit(e_u->info.callback_mask, CBM_VEHICLE_LENGTH)) {
00240 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00241 }
00242 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00243 veh_len = 8 - Clamp(veh_len, 0, 7);
00244
00245
00246 if (same_length && veh_len != u->gcache.cached_veh_length) RailVehicleLengthChanged(u);
00247
00248
00249 if (!same_length) u->gcache.cached_veh_length = veh_len;
00250
00251 this->gcache.cached_total_length += u->gcache.cached_veh_length;
00252 this->InvalidateNewGRFCache();
00253 u->InvalidateNewGRFCache();
00254 }
00255
00256
00257 this->vcache.cached_max_speed = max_speed;
00258 this->tcache.cached_tilt = train_can_tilt;
00259 this->tcache.cached_max_curve_speed = this->GetCurveSpeedLimit();
00260
00261
00262 this->CargoChanged();
00263
00264 if (this->IsFrontEngine()) {
00265 this->UpdateAcceleration();
00266 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00267 InvalidateWindowData(WC_VEHICLE_REFIT, this->index);
00268 }
00269 }
00270
00281 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length)
00282 {
00283 const Station *st = Station::Get(station_id);
00284 *station_ahead = st->GetPlatformLength(tile, DirToDiagDir(v->direction)) * TILE_SIZE;
00285 *station_length = st->GetPlatformLength(tile) * TILE_SIZE;
00286
00287
00288
00289 OrderStopLocation osl = OSL_PLATFORM_MIDDLE;
00290 if (v->gcache.cached_total_length >= *station_length) {
00291
00292 osl = OSL_PLATFORM_FAR_END;
00293 } else if (v->current_order.IsType(OT_GOTO_STATION) && v->current_order.GetDestination() == station_id) {
00294 osl = v->current_order.GetStopLocation();
00295 }
00296
00297
00298 int stop;
00299 switch (osl) {
00300 default: NOT_REACHED();
00301
00302 case OSL_PLATFORM_NEAR_END:
00303 stop = v->gcache.cached_total_length;
00304 break;
00305
00306 case OSL_PLATFORM_MIDDLE:
00307 stop = *station_length - (*station_length - v->gcache.cached_total_length) / 2;
00308 break;
00309
00310 case OSL_PLATFORM_FAR_END:
00311 stop = *station_length;
00312 break;
00313 }
00314
00315
00316
00317 return stop - (v->gcache.cached_veh_length + 1) / 2;
00318 }
00319
00320
00325 int Train::GetCurveSpeedLimit() const
00326 {
00327 assert(this->First() == this);
00328
00329 static const int absolute_max_speed = UINT16_MAX;
00330 int max_speed = absolute_max_speed;
00331
00332 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return max_speed;
00333
00334 int curvecount[2] = {0, 0};
00335
00336
00337 int numcurve = 0;
00338 int sum = 0;
00339 int pos = 0;
00340 int lastpos = -1;
00341 for (const Vehicle *u = this; u->Next() != NULL; u = u->Next(), pos++) {
00342 Direction this_dir = u->direction;
00343 Direction next_dir = u->Next()->direction;
00344
00345 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00346 if (dirdiff == DIRDIFF_SAME) continue;
00347
00348 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00349 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00350 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00351 if (lastpos != -1) {
00352 numcurve++;
00353 sum += pos - lastpos;
00354 if (pos - lastpos == 1) {
00355 max_speed = 88;
00356 }
00357 }
00358 lastpos = pos;
00359 }
00360
00361
00362 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00363 max_speed = 61;
00364 }
00365 }
00366
00367 if (numcurve > 0 && max_speed > 88) {
00368 if (curvecount[0] == 1 && curvecount[1] == 1) {
00369 max_speed = absolute_max_speed;
00370 } else {
00371 sum /= numcurve;
00372 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00373 }
00374 }
00375
00376 if (max_speed != absolute_max_speed) {
00377
00378 const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00379 max_speed += (max_speed / 2) * rti->curve_speed;
00380
00381 if (this->tcache.cached_tilt) {
00382
00383 max_speed += max_speed / 5;
00384 }
00385 }
00386
00387 return max_speed;
00388 }
00389
00394 int Train::GetCurrentMaxSpeed() const
00395 {
00396 int max_speed = this->tcache.cached_max_curve_speed;
00397 assert(max_speed == this->GetCurveSpeedLimit());
00398
00399 if (IsRailStationTile(this->tile)) {
00400 StationID sid = GetStationIndex(this->tile);
00401 if (this->current_order.ShouldStopAtStation(this, sid)) {
00402 int station_ahead;
00403 int station_length;
00404 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00405
00406
00407
00408 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00409
00410 if (distance_to_go > 0) {
00411 int st_max_speed = 120;
00412
00413 int delta_v = this->cur_speed / (distance_to_go + 1);
00414 if (max_speed > (this->cur_speed - delta_v)) {
00415 st_max_speed = this->cur_speed - (delta_v / 10);
00416 }
00417
00418 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00419 max_speed = min(max_speed, st_max_speed);
00420 }
00421 }
00422 }
00423
00424 for (const Train *u = this; u != NULL; u = u->Next()) {
00425 if (u->track == TRACK_BIT_DEPOT) {
00426 max_speed = min(max_speed, 61);
00427 break;
00428 }
00429 }
00430
00431 return min(max_speed, this->gcache.cached_max_track_speed);
00432 }
00433
00434 void Train::UpdateAcceleration()
00435 {
00436 assert(this->IsFrontEngine());
00437
00438 uint power = this->gcache.cached_power;
00439 uint weight = this->gcache.cached_weight;
00440 assert(weight != 0);
00441 this->acceleration = Clamp(power / weight * 4, 1, 255);
00442 }
00443
00449 int Train::GetDisplayImageWidth(Point *offset) const
00450 {
00451 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00452 int vehicle_pitch = 0;
00453
00454 const Engine *e = Engine::Get(this->engine_type);
00455 if (e->grf_prop.grffile != NULL && is_custom_sprite(e->u.rail.image_index)) {
00456 reference_width = e->grf_prop.grffile->traininfo_vehicle_width;
00457 vehicle_pitch = e->grf_prop.grffile->traininfo_vehicle_pitch;
00458 }
00459
00460 if (offset != NULL) {
00461 offset->x = reference_width / 2;
00462 offset->y = vehicle_pitch;
00463 }
00464 return this->gcache.cached_veh_length * reference_width / 8;
00465 }
00466
00467 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00468 {
00469 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00470 }
00471
00472 SpriteID Train::GetImage(Direction direction) const
00473 {
00474 uint8 spritenum = this->spritenum;
00475 SpriteID sprite;
00476
00477 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00478
00479 if (is_custom_sprite(spritenum)) {
00480 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00481 if (sprite != 0) return sprite;
00482
00483 spritenum = Engine::Get(this->engine_type)->original_image_index;
00484 }
00485
00486 sprite = GetDefaultTrainSprite(spritenum, direction);
00487
00488 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00489
00490 return sprite;
00491 }
00492
00493 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00494 {
00495 const Engine *e = Engine::Get(engine);
00496 Direction dir = rear_head ? DIR_E : DIR_W;
00497 uint8 spritenum = e->u.rail.image_index;
00498
00499 if (is_custom_sprite(spritenum)) {
00500 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00501 if (sprite != 0) {
00502 if (e->grf_prop.grffile != NULL) {
00503 y += e->grf_prop.grffile->traininfo_vehicle_pitch;
00504 }
00505 return sprite;
00506 }
00507
00508 spritenum = Engine::Get(engine)->original_image_index;
00509 }
00510
00511 if (rear_head) spritenum++;
00512
00513 return GetDefaultTrainSprite(spritenum, DIR_W);
00514 }
00515
00516 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal)
00517 {
00518 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00519 int yf = y;
00520 int yr = y;
00521
00522 SpriteID spritef = GetRailIcon(engine, false, yf);
00523 SpriteID spriter = GetRailIcon(engine, true, yr);
00524 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00525 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00526
00527 preferred_x = Clamp(preferred_x, left - real_spritef->x_offs + 14, right - real_spriter->width - real_spriter->x_offs - 15);
00528
00529 DrawSprite(spritef, pal, preferred_x - 14, yf);
00530 DrawSprite(spriter, pal, preferred_x + 15, yr);
00531 } else {
00532 SpriteID sprite = GetRailIcon(engine, false, y);
00533 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00534 preferred_x = Clamp(preferred_x, left - real_sprite->x_offs, right - real_sprite->width - real_sprite->x_offs);
00535 DrawSprite(sprite, pal, preferred_x, y);
00536 }
00537 }
00538
00547 static CommandCost CmdBuildRailWagon(TileIndex tile, DoCommandFlag flags, const Engine *e, Vehicle **ret)
00548 {
00549 const RailVehicleInfo *rvi = &e->u.rail;
00550
00551
00552 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00553
00554 if (flags & DC_EXEC) {
00555 Train *v = new Train();
00556 *ret = v;
00557 v->spritenum = rvi->image_index;
00558
00559 v->engine_type = e->index;
00560 v->gcache.first_engine = INVALID_ENGINE;
00561
00562 DiagDirection dir = GetRailDepotDirection(tile);
00563
00564 v->direction = DiagDirToDir(dir);
00565 v->tile = tile;
00566
00567 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00568 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00569
00570 v->x_pos = x;
00571 v->y_pos = y;
00572 v->z_pos = GetSlopeZ(x, y);
00573 v->owner = _current_company;
00574 v->track = TRACK_BIT_DEPOT;
00575 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00576
00577 v->SetWagon();
00578
00579 v->SetFreeWagon();
00580 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00581
00582 v->cargo_type = e->GetDefaultCargoType();
00583 v->cargo_cap = rvi->capacity;
00584
00585 v->railtype = rvi->railtype;
00586
00587 v->build_year = _cur_year;
00588 v->cur_image = SPR_IMG_QUERY;
00589 v->random_bits = VehicleRandomBits();
00590
00591 v->group_id = DEFAULT_GROUP;
00592
00593 AddArticulatedParts(v);
00594
00595 _new_vehicle_id = v->index;
00596
00597 VehicleMove(v, false);
00598 v->First()->ConsistChanged(false);
00599 UpdateTrainGroupID(v->First());
00600
00601 CheckConsistencyOfArticulatedVehicle(v);
00602
00603
00604 Train *w;
00605 FOR_ALL_TRAINS(w) {
00606 if (w->tile == tile &&
00607 w->IsFreeWagon() &&
00608 w->engine_type == e->index &&
00609 w->First() != v &&
00610 !(w->vehstatus & VS_CRASHED)) {
00611 DoCommand(0, v->index | 1 << 20, w->Last()->index, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00612 break;
00613 }
00614 }
00615 }
00616
00617 return CommandCost();
00618 }
00619
00621 static void NormalizeTrainVehInDepot(const Train *u)
00622 {
00623 const Train *v;
00624 FOR_ALL_TRAINS(v) {
00625 if (v->IsFreeWagon() && v->tile == u->tile &&
00626 v->track == TRACK_BIT_DEPOT) {
00627 if (DoCommand(0, v->index | 1 << 20, u->index, DC_EXEC,
00628 CMD_MOVE_RAIL_VEHICLE).Failed())
00629 break;
00630 }
00631 }
00632 }
00633
00634 static void AddRearEngineToMultiheadedTrain(Train *v)
00635 {
00636 Train *u = new Train();
00637 v->value >>= 1;
00638 u->value = v->value;
00639 u->direction = v->direction;
00640 u->owner = v->owner;
00641 u->tile = v->tile;
00642 u->x_pos = v->x_pos;
00643 u->y_pos = v->y_pos;
00644 u->z_pos = v->z_pos;
00645 u->track = TRACK_BIT_DEPOT;
00646 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00647 u->spritenum = v->spritenum + 1;
00648 u->cargo_type = v->cargo_type;
00649 u->cargo_subtype = v->cargo_subtype;
00650 u->cargo_cap = v->cargo_cap;
00651 u->railtype = v->railtype;
00652 u->engine_type = v->engine_type;
00653 u->build_year = v->build_year;
00654 u->cur_image = SPR_IMG_QUERY;
00655 u->random_bits = VehicleRandomBits();
00656 v->SetMultiheaded();
00657 u->SetMultiheaded();
00658 v->SetNext(u);
00659 VehicleMove(u, false);
00660
00661
00662 v->other_multiheaded_part = u;
00663 u->other_multiheaded_part = v;
00664 }
00665
00675 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, const Engine *e, uint16 data, Vehicle **ret)
00676 {
00677 const RailVehicleInfo *rvi = &e->u.rail;
00678
00679 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(tile, flags, e, ret);
00680
00681
00682
00683 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00684
00685 if (flags & DC_EXEC) {
00686 DiagDirection dir = GetRailDepotDirection(tile);
00687 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00688 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00689
00690 Train *v = new Train();
00691 *ret = v;
00692 v->direction = DiagDirToDir(dir);
00693 v->tile = tile;
00694 v->owner = _current_company;
00695 v->x_pos = x;
00696 v->y_pos = y;
00697 v->z_pos = GetSlopeZ(x, y);
00698 v->track = TRACK_BIT_DEPOT;
00699 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00700 v->spritenum = rvi->image_index;
00701 v->cargo_type = e->GetDefaultCargoType();
00702 v->cargo_cap = rvi->capacity;
00703 v->last_station_visited = INVALID_STATION;
00704
00705 v->engine_type = e->index;
00706 v->gcache.first_engine = INVALID_ENGINE;
00707
00708 v->reliability = e->reliability;
00709 v->reliability_spd_dec = e->reliability_spd_dec;
00710 v->max_age = e->GetLifeLengthInDays();
00711
00712 v->railtype = rvi->railtype;
00713 _new_vehicle_id = v->index;
00714
00715 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00716 v->date_of_last_service = _date;
00717 v->build_year = _cur_year;
00718 v->cur_image = SPR_IMG_QUERY;
00719 v->random_bits = VehicleRandomBits();
00720
00721 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00722
00723 v->group_id = DEFAULT_GROUP;
00724
00725 v->SetFrontEngine();
00726 v->SetEngine();
00727
00728 VehicleMove(v, false);
00729
00730 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00731 AddRearEngineToMultiheadedTrain(v);
00732 } else {
00733 AddArticulatedParts(v);
00734 }
00735
00736 v->ConsistChanged(false);
00737 UpdateTrainGroupID(v);
00738
00739 if (!HasBit(data, 0) && !(flags & DC_AUTOREPLACE)) {
00740 NormalizeTrainVehInDepot(v);
00741 }
00742
00743 CheckConsistencyOfArticulatedVehicle(v);
00744 }
00745
00746 return CommandCost();
00747 }
00748
00749
00750 bool Train::IsInDepot() const
00751 {
00752
00753 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00754
00755
00756 for (const Train *v = this; v != NULL; v = v->Next()) {
00757 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00758 }
00759
00760 return true;
00761 }
00762
00763 bool Train::IsStoppedInDepot() const
00764 {
00765
00766 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00767 return this->IsInDepot();
00768 }
00769
00770 static Train *FindGoodVehiclePos(const Train *src)
00771 {
00772 EngineID eng = src->engine_type;
00773 TileIndex tile = src->tile;
00774
00775 Train *dst;
00776 FOR_ALL_TRAINS(dst) {
00777 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00778
00779 Train *t = dst;
00780 while (t->engine_type == eng) {
00781 t = t->Next();
00782 if (t == NULL) return dst;
00783 }
00784 }
00785 }
00786
00787 return NULL;
00788 }
00789
00791 typedef SmallVector<Train *, 16> TrainList;
00792
00798 static void MakeTrainBackup(TrainList &list, Train *t)
00799 {
00800 for (; t != NULL; t = t->Next()) *list.Append() = t;
00801 }
00802
00807 static void RestoreTrainBackup(TrainList &list)
00808 {
00809
00810 if (list.Length() == 0) return;
00811
00812 Train *prev = NULL;
00813
00814 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00815 Train *t = *iter;
00816 if (prev != NULL) {
00817 prev->SetNext(t);
00818 } else if (t->Previous() != NULL) {
00819
00820 t->Previous()->SetNext(NULL);
00821 }
00822 prev = t;
00823 }
00824 }
00825
00831 static void RemoveFromConsist(Train *part, bool chain = false)
00832 {
00833 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
00834
00835
00836
00837 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
00838
00839
00840 tail->SetNext(NULL);
00841 }
00842
00848 static void InsertInConsist(Train *dst, Train *chain)
00849 {
00850
00851 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
00852
00853 chain->Last()->SetNext(dst->Next());
00854 dst->SetNext(chain);
00855 }
00856
00862 static void NormaliseDualHeads(Train *t)
00863 {
00864 for (; t != NULL; t = t->GetNextVehicle()) {
00865 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
00866
00867
00868 Train *u;
00869 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
00870
00871 if (u == t->other_multiheaded_part) continue;
00872
00873
00874 RemoveFromConsist(t->other_multiheaded_part);
00875
00876 InsertInConsist(u, t->other_multiheaded_part);
00877 }
00878 }
00879
00884 static void NormaliseSubtypes(Train *chain)
00885 {
00886
00887 if (chain == NULL) return;
00888
00889
00890 assert(chain->Previous() == NULL);
00891
00892
00893 if (chain->IsWagon()) {
00894 chain->SetFreeWagon();
00895 } else {
00896 assert(chain->IsEngine());
00897 chain->SetFrontEngine();
00898 }
00899
00900
00901 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
00902 t->ClearFreeWagon();
00903 t->ClearFrontEngine();
00904 }
00905 }
00906
00916 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
00917 {
00918
00919
00920
00921 if ((src != NULL && src->IsEngine() ? 1 : 0) +
00922 (dst != NULL && dst->IsEngine() ? 1 : 0) -
00923 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
00924 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
00925 return CommandCost();
00926 }
00927
00928
00929
00930 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
00931
00932 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00933 }
00934
00940 static CommandCost CheckTrainAttachment(Train *t)
00941 {
00942
00943 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
00944
00945
00946
00947 int allowed_len = _settings_game.vehicle.max_train_length * TILE_SIZE - t->gcache.cached_veh_length;
00948
00949 Train *head = t;
00950 Train *prev = t;
00951
00952
00953 t = t->Next();
00954 prev->SetNext(NULL);
00955
00956
00957 head->InvalidateNewGRFCache();
00958
00959 while (t != NULL) {
00960 allowed_len -= t->gcache.cached_veh_length;
00961
00962 Train *next = t->Next();
00963
00964
00965
00966 t->SetNext(NULL);
00967
00968
00969 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
00970
00971 EngineID first_engine = t->gcache.first_engine;
00972 t->gcache.first_engine = INVALID_ENGINE;
00973
00974
00975
00976 t->InvalidateNewGRFCache();
00977
00978 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
00979
00980
00981 t->gcache.first_engine = first_engine;
00982
00983
00984 t->InvalidateNewGRFCache();
00985 head->InvalidateNewGRFCache();
00986
00987 if (callback != CALLBACK_FAILED) {
00988
00989 StringID error = STR_NULL;
00990
00991 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00992 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(head->engine_type), 0xD000 + callback);
00993
00994 if (error != STR_NULL) return_cmd_error(error);
00995 }
00996 }
00997
00998
00999 prev->SetNext(t);
01000 prev = t;
01001 t = next;
01002 }
01003
01004 if (allowed_len < 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01005 return CommandCost();
01006 }
01007
01018 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
01019 {
01020
01021 CommandCost ret = CheckTrainAttachment(src);
01022 if (ret.Failed()) return ret;
01023 ret = CheckTrainAttachment(dst);
01024 if (ret.Failed()) return ret;
01025
01026
01027 return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
01028 }
01029
01038 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01039 {
01040
01041 if (*src_head == *dst_head) {
01042
01043
01044 *dst_head = NULL;
01045 } else if (*dst_head == NULL) {
01046
01047
01048 *dst_head = src;
01049 }
01050
01051 if (src == *src_head) {
01052
01053
01054
01055
01056
01057
01058 *src_head = move_chain ? NULL :
01059 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01060 }
01061
01062
01063
01064
01065 RemoveFromConsist(src, move_chain);
01066 if (*dst_head != src) InsertInConsist(dst, src);
01067
01068
01069
01070 NormaliseDualHeads(*src_head);
01071 NormaliseDualHeads(*dst_head);
01072 }
01073
01079 static void NormaliseTrainHead(Train *head)
01080 {
01081
01082 if (head == NULL) return;
01083
01084
01085 head->ConsistChanged(false);
01086 UpdateTrainGroupID(head);
01087
01088
01089 if (!head->IsFrontEngine()) return;
01090
01091
01092 InvalidateWindowData(WC_VEHICLE_REFIT, head->index);
01093 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, VVW_WIDGET_REFIT_VEH);
01094
01095
01096 if (head->unitnumber != 0) return;
01097 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01098 }
01099
01112 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01113 {
01114 VehicleID s = GB(p1, 0, 20);
01115 VehicleID d = GB(p2, 0, 20);
01116 bool move_chain = HasBit(p1, 20);
01117
01118 Train *src = Train::GetIfValid(s);
01119 if (src == NULL) return CMD_ERROR;
01120
01121 CommandCost ret = CheckOwnership(src->owner);
01122 if (ret.Failed()) return ret;
01123
01124
01125 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01126
01127
01128 Train *dst;
01129 if (d == INVALID_VEHICLE) {
01130 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01131 } else {
01132 dst = Train::GetIfValid(d);
01133 if (dst == NULL) return CMD_ERROR;
01134
01135 CommandCost ret = CheckOwnership(dst->owner);
01136 if (ret.Failed()) return ret;
01137
01138
01139 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01140 }
01141
01142
01143 src = src->GetFirstEnginePart();
01144 if (dst != NULL) {
01145 dst = dst->GetFirstEnginePart();
01146 }
01147
01148
01149 if (src == dst) return CommandCost();
01150
01151
01152 Train *src_head = src->First();
01153 Train *dst_head;
01154 if (dst != NULL) {
01155 dst_head = dst->First();
01156 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01157
01158 dst = dst->GetLastEnginePart();
01159 } else {
01160 dst_head = NULL;
01161 }
01162
01163 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01164
01165
01166 if (move_chain && src_head == dst_head) return CommandCost();
01167
01168
01169 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01170
01171
01172 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01173
01174
01175 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01176
01177
01178
01179 TrainList original_src;
01180 TrainList original_dst;
01181
01182 MakeTrainBackup(original_src, src_head);
01183 MakeTrainBackup(original_dst, dst_head);
01184
01185
01186
01187
01188 Train *original_src_head = src_head;
01189 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01190
01191
01192 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01193
01194 if ((flags & DC_AUTOREPLACE) == 0) {
01195
01196
01197
01198 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
01199 if (ret.Failed()) {
01200
01201 RestoreTrainBackup(original_src);
01202 RestoreTrainBackup(original_dst);
01203 return ret;
01204 }
01205 }
01206
01207
01208 if (flags & DC_EXEC) {
01209
01210 NormaliseSubtypes(src_head);
01211 NormaliseSubtypes(dst_head);
01212
01213
01214
01215
01216
01217
01218
01219
01220
01221
01222
01223
01224
01225
01226
01227
01228
01229
01230
01231
01232
01233 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01234
01235 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01236 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01237 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01238 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01239 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01240
01241
01242
01243 if (dst_head != NULL && dst_head != src && (src_head == NULL || !src_head->IsFrontEngine())) {
01244 DecreaseGroupNumVehicle(src->group_id);
01245 }
01246
01247
01248
01249 if (dst_head == NULL && !src_head->IsFrontEngine()) {
01250 DecreaseGroupNumVehicle(src->group_id);
01251 }
01252
01253
01254
01255 DeleteVehicleOrders(src);
01256 RemoveVehicleFromGroup(src);
01257 src->unitnumber = 0;
01258 }
01259
01260
01261
01262 if (original_src_head == src && dst_head == src) {
01263 IncreaseGroupNumVehicle(src->group_id);
01264 }
01265
01266
01267
01268 if (original_src_head != src && dst_head == src) {
01269 SetTrainGroupID(src, DEFAULT_GROUP);
01270 }
01271
01272
01273 NormaliseTrainHead(src_head);
01274 NormaliseTrainHead(dst_head);
01275
01276
01277 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01278 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01279 } else {
01280
01281 RestoreTrainBackup(original_src);
01282 RestoreTrainBackup(original_dst);
01283 }
01284
01285 return CommandCost();
01286 }
01287
01299 CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint32 user)
01300 {
01301
01302 Window *w = NULL;
01303
01304
01305 bool sell_chain = HasBit(data, 0);
01306
01307 Train *v = Train::From(t)->GetFirstEnginePart();
01308 Train *first = v->First();
01309
01310 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01311
01312
01313
01314 TrainList original;
01315 MakeTrainBackup(original, first);
01316
01317
01318 Train *new_head = first;
01319 Train *sell_head = NULL;
01320
01321
01322 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01323
01324
01325 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
01326 if (ret.Failed()) {
01327
01328 RestoreTrainBackup(original);
01329 return ret;
01330 }
01331
01332 CommandCost cost(EXPENSES_NEW_VEHICLES);
01333 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01334
01335
01336 if (flags & DC_EXEC) {
01337
01338 NormaliseSubtypes(new_head);
01339
01340 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01341
01342
01343 new_head->orders.list = first->orders.list;
01344 new_head->AddToShared(first);
01345 DeleteVehicleOrders(first);
01346
01347
01348 new_head->CopyVehicleConfigAndStatistics(first);
01349 IncreaseGroupNumVehicle(new_head->group_id);
01350
01351
01352 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01353 } else if (v->IsPrimaryVehicle() && data & (MAKE_ORDER_BACKUP_FLAG >> 20)) {
01354 OrderBackup::Backup(v, user);
01355 }
01356
01357
01358 NormaliseTrainHead(new_head);
01359
01360
01361 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01362 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01363
01364
01365 delete sell_head;
01366 } else {
01367
01368 RestoreTrainBackup(original);
01369 }
01370
01371 return cost;
01372 }
01373
01374 void Train::UpdateDeltaXY(Direction direction)
01375 {
01376 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01377 static const uint32 _delta_xy_table[8] = {
01378 MKIT(3, 3, -1, -1),
01379 MKIT(3, 7, -1, -3),
01380 MKIT(3, 3, -1, -1),
01381 MKIT(7, 3, -3, -1),
01382 MKIT(3, 3, -1, -1),
01383 MKIT(3, 7, -1, -3),
01384 MKIT(3, 3, -1, -1),
01385 MKIT(7, 3, -3, -1),
01386 };
01387 #undef MKIT
01388
01389 uint32 x = _delta_xy_table[direction];
01390 this->x_offs = GB(x, 0, 8);
01391 this->y_offs = GB(x, 8, 8);
01392 this->x_extent = GB(x, 16, 8);
01393 this->y_extent = GB(x, 24, 8);
01394 this->z_extent = 6;
01395 }
01396
01398 static void MarkTrainAsStuck(Train *v)
01399 {
01400 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01401
01402 SetBit(v->flags, VRF_TRAIN_STUCK);
01403
01404 v->wait_counter = 0;
01405
01406
01407 v->cur_speed = 0;
01408 v->subspeed = 0;
01409 v->SetLastSpeed();
01410
01411 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01412 }
01413 }
01414
01415 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01416 {
01417 uint16 flag1 = *swap_flag1;
01418 uint16 flag2 = *swap_flag2;
01419
01420
01421 ClrBit(*swap_flag1, GVF_GOINGUP_BIT);
01422 ClrBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01423 ClrBit(*swap_flag2, GVF_GOINGUP_BIT);
01424 ClrBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01425
01426
01427 if (HasBit(flag1, GVF_GOINGUP_BIT)) {
01428 SetBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01429 } else if (HasBit(flag1, GVF_GOINGDOWN_BIT)) {
01430 SetBit(*swap_flag2, GVF_GOINGUP_BIT);
01431 }
01432 if (HasBit(flag2, GVF_GOINGUP_BIT)) {
01433 SetBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01434 } else if (HasBit(flag2, GVF_GOINGDOWN_BIT)) {
01435 SetBit(*swap_flag1, GVF_GOINGUP_BIT);
01436 }
01437 }
01438
01443 static void UpdateStatusAfterSwap(Train *v)
01444 {
01445
01446 if (v->track != TRACK_BIT_DEPOT) v->direction = ReverseDir(v->direction);
01447
01448
01449 if (v->track != TRACK_BIT_WORMHOLE) {
01450 VehicleEnterTile(v, v->tile, v->x_pos, v->y_pos);
01451 } else {
01452
01453
01454
01455
01456 TileIndex vt = TileVirtXY(v->x_pos, v->y_pos);
01457 if (IsTileType(vt, MP_TUNNELBRIDGE)) {
01458 VehicleEnterTile(v, vt, v->x_pos, v->y_pos);
01459 if (v->track != TRACK_BIT_WORMHOLE && IsBridgeTile(v->tile)) {
01460
01461
01462
01463 v->UpdateInclination(true, true);
01464 return;
01465 }
01466 }
01467 }
01468
01469 v->UpdateViewport(true, true);
01470 }
01471
01472 static void ReverseTrainSwapVeh(Train *v, int l, int r)
01473 {
01474 Train *a, *b;
01475
01476
01477 for (a = v; l != 0; l--) a = a->Next();
01478 for (b = v; r != 0; r--) b = b->Next();
01479
01480 if (a != b) {
01481
01482 {
01483 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus & VS_HIDDEN);
01484 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus & VS_HIDDEN);
01485 a->vehstatus = tmp;
01486 }
01487
01488 Swap(a->track, b->track);
01489 Swap(a->direction, b->direction);
01490 Swap(a->x_pos, b->x_pos);
01491 Swap(a->y_pos, b->y_pos);
01492 Swap(a->tile, b->tile);
01493 Swap(a->z_pos, b->z_pos);
01494
01495 SwapTrainFlags(&a->gv_flags, &b->gv_flags);
01496
01497 UpdateStatusAfterSwap(a);
01498 UpdateStatusAfterSwap(b);
01499 } else {
01500
01501
01502
01503 SwapTrainFlags(&a->gv_flags, &a->gv_flags);
01504 UpdateStatusAfterSwap(a);
01505 }
01506
01507
01508 v->RailtypeChanged();
01509 }
01510
01511
01517 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01518 {
01519 return (v->type == VEH_TRAIN) ? v : NULL;
01520 }
01521
01522
01529 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01530 {
01531 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01532
01533 Train *t = Train::From(v);
01534 if (!t->IsFrontEngine()) return NULL;
01535
01536 TileIndex tile = *(TileIndex *)data;
01537
01538 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01539
01540 return t;
01541 }
01542
01543
01550 static bool TrainApproachingCrossing(TileIndex tile)
01551 {
01552 assert(IsLevelCrossingTile(tile));
01553
01554 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01555 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01556
01557 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01558
01559 dir = ReverseDiagDir(dir);
01560 tile_from = tile + TileOffsByDiagDir(dir);
01561
01562 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01563 }
01564
01565
01572 void UpdateLevelCrossing(TileIndex tile, bool sound)
01573 {
01574 assert(IsLevelCrossingTile(tile));
01575
01576
01577 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01578
01579 if (new_state != IsCrossingBarred(tile)) {
01580 if (new_state && sound) {
01581 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01582 }
01583 SetCrossingBarred(tile, new_state);
01584 MarkTileDirtyByTile(tile);
01585 }
01586 }
01587
01588
01594 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01595 {
01596 if (!IsCrossingBarred(tile)) {
01597 BarCrossing(tile);
01598 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01599 MarkTileDirtyByTile(tile);
01600 }
01601 }
01602
01603
01609 static void AdvanceWagonsBeforeSwap(Train *v)
01610 {
01611 Train *base = v;
01612 Train *first = base;
01613 Train *last = v->Last();
01614 uint length = CountVehiclesInChain(v);
01615
01616 while (length > 2) {
01617 last = last->Previous();
01618 first = first->Next();
01619
01620 int differential = base->gcache.cached_veh_length - last->gcache.cached_veh_length;
01621
01622
01623
01624 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01625
01626 base = first;
01627 length -= 2;
01628 }
01629 }
01630
01631
01637 static void AdvanceWagonsAfterSwap(Train *v)
01638 {
01639
01640 Train *dep = v;
01641 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01642 dep = dep->Next();
01643 }
01644
01645 Train *leave = dep->Next();
01646
01647 if (leave != NULL) {
01648
01649 int d = TicksToLeaveDepot(dep);
01650
01651 if (d <= 0) {
01652 leave->vehstatus &= ~VS_HIDDEN;
01653 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01654 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01655 }
01656 } else {
01657 dep = NULL;
01658 }
01659
01660 Train *base = v;
01661 Train *first = base;
01662 Train *last = v->Last();
01663 uint length = CountVehiclesInChain(v);
01664
01665
01666
01667 bool nomove = (dep == NULL);
01668
01669 while (length > 2) {
01670
01671
01672 if (base == dep) break;
01673
01674
01675 if (last == dep) nomove = true;
01676
01677 last = last->Previous();
01678 first = first->Next();
01679
01680 int differential = last->gcache.cached_veh_length - base->gcache.cached_veh_length;
01681
01682
01683 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01684
01685 base = first;
01686 length -= 2;
01687 }
01688 }
01689
01690
01691 static void ReverseTrainDirection(Train *v)
01692 {
01693 if (IsRailDepotTile(v->tile)) {
01694 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01695 }
01696
01697
01698 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01699
01700
01701 TileIndex crossing = TrainApproachingCrossingTile(v);
01702
01703
01704 int r = CountVehiclesInChain(v) - 1;
01705
01706 AdvanceWagonsBeforeSwap(v);
01707
01708
01709 int l = 0;
01710 do {
01711 ReverseTrainSwapVeh(v, l++, r--);
01712 } while (l <= r);
01713
01714 AdvanceWagonsAfterSwap(v);
01715
01716 if (IsRailDepotTile(v->tile)) {
01717 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01718 }
01719
01720 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01721
01722 ClrBit(v->flags, VRF_REVERSING);
01723
01724
01725 v->ConsistChanged(true);
01726
01727
01728 for (Train *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01729
01730
01731 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01732
01733
01734 crossing = TrainApproachingCrossingTile(v);
01735 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01736
01737
01738 if (v->track == TRACK_BIT_DEPOT) {
01739
01740 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01741 ClrBit(v->flags, VRF_TRAIN_STUCK);
01742 return;
01743 }
01744
01745
01746
01747 DiagDirection dir = TrainExitDir(v->direction, v->track);
01748 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01749
01750 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01751
01752
01753 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01754 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01755 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01756
01757 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01758 if (TryPathReserve(v, false, first_tile_okay)) {
01759
01760 CheckNextTrainTile(v);
01761 } else if (v->current_order.GetType() != OT_LOADING) {
01762
01763 MarkTrainAsStuck(v);
01764 }
01765 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01766
01767 ClrBit(v->flags, VRF_TRAIN_STUCK);
01768 v->wait_counter = 0;
01769 }
01770 }
01771
01781 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01782 {
01783 Train *v = Train::GetIfValid(p1);
01784 if (v == NULL) return CMD_ERROR;
01785
01786 CommandCost ret = CheckOwnership(v->owner);
01787 if (ret.Failed()) return ret;
01788
01789 if (p2 != 0) {
01790
01791
01792 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01793 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01794 }
01795 if (!HasBit(EngInfo(v->engine_type)->misc_flags, EF_RAIL_FLIPS)) return CMD_ERROR;
01796
01797 Train *front = v->First();
01798
01799 if (!front->IsStoppedInDepot()) {
01800 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01801 }
01802
01803 if (flags & DC_EXEC) {
01804 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01805 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
01806 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
01807
01808 v->force_proceed = TFP_NONE;
01809 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01810 }
01811 } else {
01812
01813 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01814
01815 if (flags & DC_EXEC) {
01816
01817 if (v->current_order.IsType(OT_LOADING)) {
01818 const Vehicle *last = v;
01819 while (last->Next() != NULL) last = last->Next();
01820
01821
01822 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01823 v->LeaveStation();
01824 }
01825 }
01826
01827
01828 v->force_proceed = TFP_NONE;
01829 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01830
01831 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01832 ToggleBit(v->flags, VRF_REVERSING);
01833 } else {
01834 v->cur_speed = 0;
01835 v->SetLastSpeed();
01836 HideFillingPercent(&v->fill_percent_te_id);
01837 ReverseTrainDirection(v);
01838 }
01839 }
01840 }
01841 return CommandCost();
01842 }
01843
01853 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01854 {
01855 Train *t = Train::GetIfValid(p1);
01856 if (t == NULL) return CMD_ERROR;
01857
01858 CommandCost ret = CheckOwnership(t->owner);
01859 if (ret.Failed()) return ret;
01860
01861
01862 if (flags & DC_EXEC) {
01863
01864
01865
01866
01867
01868 t->force_proceed = t->force_proceed == TFP_SIGNAL ? TFP_NONE : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? TFP_STUCK : TFP_SIGNAL;
01869 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
01870 }
01871
01872 return CommandCost();
01873 }
01874
01879 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
01880 {
01881 assert(!(v->vehstatus & VS_CRASHED));
01882
01883 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
01884
01885 PBSTileInfo origin = FollowTrainReservation(v);
01886 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
01887
01888 switch (_settings_game.pf.pathfinder_for_trains) {
01889 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
01890 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
01891
01892 default: NOT_REACHED();
01893 }
01894 }
01895
01896 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
01897 {
01898 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
01899 if (tfdd.best_length == UINT_MAX) return false;
01900
01901 if (location != NULL) *location = tfdd.tile;
01902 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
01903 if (reverse != NULL) *reverse = tfdd.reverse;
01904
01905 return true;
01906 }
01907
01908 void Train::PlayLeaveStationSound() const
01909 {
01910 static const SoundFx sfx[] = {
01911 SND_04_TRAIN,
01912 SND_0A_TRAIN_HORN,
01913 SND_0A_TRAIN_HORN,
01914 SND_47_MAGLEV_2,
01915 SND_41_MAGLEV
01916 };
01917
01918 if (PlayVehicleSound(this, VSE_START)) return;
01919
01920 EngineID engtype = this->engine_type;
01921 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
01922 }
01923
01925 static void CheckNextTrainTile(Train *v)
01926 {
01927
01928 if (_settings_game.pf.path_backoff_interval == 255) return;
01929
01930
01931 if (v->track == TRACK_BIT_DEPOT) return;
01932
01933 switch (v->current_order.GetType()) {
01934
01935 case OT_GOTO_DEPOT:
01936 if (v->tile == v->dest_tile) return;
01937 break;
01938
01939 case OT_GOTO_WAYPOINT:
01940
01941 if (IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
01942 break;
01943
01944 case OT_NOTHING:
01945 case OT_LEAVESTATION:
01946 case OT_LOADING:
01947
01948 if (v->GetNumOrders() > 0) return;
01949 break;
01950
01951 default:
01952 break;
01953 }
01954
01955 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
01956
01957 Trackdir td = v->GetVehicleTrackdir();
01958
01959
01960 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
01961 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
01962 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
01963
01964 CFollowTrackRail ft(v);
01965 if (!ft.Follow(v->tile, td)) return;
01966
01967 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
01968
01969 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
01970 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
01971
01972 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
01973 if (_settings_game.pf.forbid_90_deg) {
01974 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
01975 }
01976 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
01977 }
01978 }
01979 }
01980 }
01981
01982 static bool CheckTrainStayInDepot(Train *v)
01983 {
01984
01985 for (const Train *u = v; u != NULL; u = u->Next()) {
01986 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
01987 }
01988
01989
01990 if (v->gcache.cached_power == 0) {
01991 v->vehstatus |= VS_STOPPED;
01992 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
01993 return true;
01994 }
01995
01996 SigSegState seg_state;
01997
01998 if (v->force_proceed == TFP_NONE) {
01999
02000 if (++v->wait_counter < 37) {
02001 SetWindowClassesDirty(WC_TRAINS_LIST);
02002 return true;
02003 }
02004
02005 v->wait_counter = 0;
02006
02007 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02008 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02009
02010 SetWindowClassesDirty(WC_TRAINS_LIST);
02011 return true;
02012 }
02013 } else {
02014 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02015 }
02016
02017
02018 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02019
02020 if (HasDepotReservation(v->tile)) return true;
02021 SetDepotReservation(v->tile, true);
02022 VehicleEnterDepot(v);
02023 return true;
02024 }
02025
02026
02027 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == TFP_NONE) {
02028
02029 SetWindowClassesDirty(WC_TRAINS_LIST);
02030 MarkTrainAsStuck(v);
02031 return true;
02032 }
02033
02034 SetDepotReservation(v->tile, true);
02035 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02036
02037 VehicleServiceInDepot(v);
02038 SetWindowClassesDirty(WC_TRAINS_LIST);
02039 v->PlayLeaveStationSound();
02040
02041 v->track = TRACK_BIT_X;
02042 if (v->direction & 2) v->track = TRACK_BIT_Y;
02043
02044 v->vehstatus &= ~VS_HIDDEN;
02045 v->cur_speed = 0;
02046
02047 v->UpdateDeltaXY(v->direction);
02048 v->cur_image = v->GetImage(v->direction);
02049 VehicleMove(v, false);
02050 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02051 v->UpdateAcceleration();
02052 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02053
02054 return false;
02055 }
02056
02058 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02059 {
02060 DiagDirection dir = TrackdirToExitdir(track_dir);
02061
02062 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02063
02064 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02065 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02066
02067 if (TunnelBridgeIsFree(tile, end, v).Succeeded()) {
02068
02069 SetTunnelBridgeReservation(tile, false);
02070 SetTunnelBridgeReservation(end, false);
02071
02072 if (_settings_client.gui.show_track_reservation) {
02073 MarkTileDirtyByTile(tile);
02074 MarkTileDirtyByTile(end);
02075 }
02076 }
02077 }
02078 } else if (IsRailStationTile(tile)) {
02079 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02080
02081
02082 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02083 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02084 }
02085 } else {
02086
02087 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02088 }
02089 }
02090
02092 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02093 {
02094 assert(v->IsFrontEngine());
02095
02096 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02097 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02098 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02099 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02100
02101
02102 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02103
02104 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02105 while (ft.Follow(tile, td)) {
02106 tile = ft.m_new_tile;
02107 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02108 td = RemoveFirstTrackdir(&bits);
02109 assert(bits == TRACKDIR_BIT_NONE);
02110
02111 if (!IsValidTrackdir(td)) break;
02112
02113 if (IsTileType(tile, MP_RAILWAY)) {
02114 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02115
02116 UnreserveRailTrack(tile, TrackdirToTrack(td));
02117 break;
02118 }
02119 if (HasPbsSignalOnTrackdir(tile, td)) {
02120 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02121
02122 break;
02123 } else {
02124
02125 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02126 MarkTileDirtyByTile(tile);
02127 }
02128 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02129 break;
02130 }
02131 }
02132
02133
02134 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);
02135
02136 free_tile = true;
02137 }
02138 }
02139
02140 static const byte _initial_tile_subcoord[6][4][3] = {
02141 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02142 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02143 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02144 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02145 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02146 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02147 };
02148
02161 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool &path_found, bool do_track_reservation, PBSTileInfo *dest)
02162 {
02163 switch (_settings_game.pf.pathfinder_for_trains) {
02164 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02165 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02166
02167 default: NOT_REACHED();
02168 }
02169 }
02170
02176 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02177 {
02178 PBSTileInfo origin = FollowTrainReservation(v);
02179
02180 CFollowTrackRail ft(v);
02181
02182 TileIndex tile = origin.tile;
02183 Trackdir cur_td = origin.trackdir;
02184 while (ft.Follow(tile, cur_td)) {
02185 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02186
02187 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02188 }
02189
02190 if (_settings_game.pf.forbid_90_deg) {
02191 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02192 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02193 }
02194
02195
02196 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02197 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02198
02199
02200
02201
02202
02203
02204 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02205
02206
02207
02208 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02209
02210
02211 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02212 if (enterdir) *enterdir = ft.m_exitdir;
02213 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02214 }
02215
02216 tile = ft.m_new_tile;
02217 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02218
02219 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02220 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02221 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02222
02223 return PBSTileInfo(tile, cur_td, true);
02224 }
02225
02226 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02227 }
02228
02229 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02230
02231 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02232 }
02233
02234
02235 tile = origin.tile;
02236 cur_td = origin.trackdir;
02237 TileIndex stopped = ft.m_old_tile;
02238 Trackdir stopped_td = ft.m_old_td;
02239 while (tile != stopped || cur_td != stopped_td) {
02240 if (!ft.Follow(tile, cur_td)) break;
02241
02242 if (_settings_game.pf.forbid_90_deg) {
02243 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02244 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02245 }
02246 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02247
02248 tile = ft.m_new_tile;
02249 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02250
02251 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02252 }
02253
02254
02255 return PBSTileInfo();
02256 }
02257
02268 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02269 {
02270 switch (_settings_game.pf.pathfinder_for_trains) {
02271 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02272 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02273
02274 default: NOT_REACHED();
02275 }
02276 }
02277
02279 class VehicleOrderSaver
02280 {
02281 private:
02282 Vehicle *v;
02283 Order old_order;
02284 TileIndex old_dest_tile;
02285 StationID old_last_station_visited;
02286 VehicleOrderID index;
02287
02288 public:
02289 VehicleOrderSaver(Vehicle *_v) :
02290 v(_v),
02291 old_order(_v->current_order),
02292 old_dest_tile(_v->dest_tile),
02293 old_last_station_visited(_v->last_station_visited),
02294 index(_v->cur_real_order_index)
02295 {
02296 }
02297
02298 ~VehicleOrderSaver()
02299 {
02300 this->v->current_order = this->old_order;
02301 this->v->dest_tile = this->old_dest_tile;
02302 this->v->last_station_visited = this->old_last_station_visited;
02303 }
02304
02310 bool SwitchToNextOrder(bool skip_first)
02311 {
02312 if (this->v->GetNumOrders() == 0) return false;
02313
02314 if (skip_first) ++this->index;
02315
02316 int conditional_depth = 0;
02317
02318 do {
02319
02320 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02321
02322 Order *order = this->v->GetOrder(this->index);
02323 assert(order != NULL);
02324
02325 switch (order->GetType()) {
02326 case OT_GOTO_DEPOT:
02327
02328 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02329 case OT_GOTO_STATION:
02330 case OT_GOTO_WAYPOINT:
02331 this->v->current_order = *order;
02332 UpdateOrderDest(this->v, order);
02333 return true;
02334 case OT_CONDITIONAL: {
02335 if (conditional_depth > this->v->GetNumOrders()) return false;
02336 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02337 if (next != INVALID_VEH_ORDER_ID) {
02338 conditional_depth++;
02339 this->index = next;
02340
02341 continue;
02342 }
02343 break;
02344 }
02345 default:
02346 break;
02347 }
02348
02349
02350 ++this->index;
02351 } while (this->index != this->v->cur_real_order_index);
02352
02353 return false;
02354 }
02355 };
02356
02357
02358 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02359 {
02360 Track best_track = INVALID_TRACK;
02361 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02362 bool changed_signal = false;
02363
02364 assert((tracks & ~TRACK_BIT_MASK) == 0);
02365
02366 if (got_reservation != NULL) *got_reservation = false;
02367
02368
02369 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02370
02371 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02372
02373
02374 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02375 Track track = FindFirstTrack(tracks);
02376
02377 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02378 do_track_reservation = true;
02379 changed_signal = true;
02380 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02381 } else if (!do_track_reservation) {
02382 return track;
02383 }
02384 best_track = track;
02385 }
02386
02387 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02388 DiagDirection dest_enterdir = enterdir;
02389 if (do_track_reservation) {
02390
02391
02392
02393 CheckIfTrainNeedsService(v);
02394 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02395
02396 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02397 if (res_dest.tile == INVALID_TILE) {
02398
02399 if (mark_stuck) MarkTrainAsStuck(v);
02400 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02401 return FindFirstTrack(tracks);
02402 }
02403 }
02404
02405
02406 VehicleOrderSaver orders(v);
02407
02408
02409
02410
02411
02412
02413
02414 if (v->current_order.IsType(OT_LEAVESTATION)) {
02415 orders.SwitchToNextOrder(false);
02416 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02417 v->current_order.IsType(OT_GOTO_STATION) ?
02418 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02419 v->tile == v->dest_tile))) {
02420 orders.SwitchToNextOrder(true);
02421 }
02422
02423 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02424
02425 bool path_found = true;
02426 TileIndex new_tile = res_dest.tile;
02427
02428 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, path_found, do_track_reservation, &res_dest);
02429 if (new_tile == tile) best_track = next_track;
02430 v->HandlePathfindingResult(path_found);
02431 }
02432
02433
02434 if (!do_track_reservation) return best_track;
02435
02436
02437 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02438 if (mark_stuck) MarkTrainAsStuck(v);
02439 FreeTrainTrackReservation(v);
02440 return best_track;
02441 }
02442
02443
02444 if (res_dest.tile == INVALID_TILE) {
02445
02446 PBSTileInfo origin = FollowTrainReservation(v);
02447 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02448 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02449 best_track = FindFirstTrack(res);
02450 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02451 if (got_reservation != NULL) *got_reservation = true;
02452 if (changed_signal) MarkTileDirtyByTile(tile);
02453 } else {
02454 FreeTrainTrackReservation(v);
02455 if (mark_stuck) MarkTrainAsStuck(v);
02456 }
02457 return best_track;
02458 }
02459
02460 if (got_reservation != NULL) *got_reservation = true;
02461
02462
02463 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02464
02465 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02466 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02467 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02468 if (_settings_game.pf.forbid_90_deg) {
02469 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02470 }
02471
02472
02473 if (orders.SwitchToNextOrder(true)) {
02474 PBSTileInfo cur_dest;
02475 bool path_found;
02476 DoTrainPathfind(v, next_tile, exitdir, reachable, path_found, true, &cur_dest);
02477 if (cur_dest.tile != INVALID_TILE) {
02478 res_dest = cur_dest;
02479 if (res_dest.okay) continue;
02480
02481 FreeTrainTrackReservation(v);
02482 if (mark_stuck) MarkTrainAsStuck(v);
02483 if (got_reservation != NULL) *got_reservation = false;
02484 changed_signal = false;
02485 break;
02486 }
02487 }
02488
02489 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02490 FreeTrainTrackReservation(v);
02491 if (mark_stuck) MarkTrainAsStuck(v);
02492 if (got_reservation != NULL) *got_reservation = false;
02493 changed_signal = false;
02494 }
02495 break;
02496 }
02497
02498 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02499
02500 if (changed_signal) MarkTileDirtyByTile(tile);
02501
02502 return best_track;
02503 }
02504
02513 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02514 {
02515 assert(v->IsFrontEngine());
02516
02517
02518
02519
02520 if (v->track == TRACK_BIT_DEPOT) {
02521 if (HasDepotReservation(v->tile)) {
02522 if (mark_as_stuck) MarkTrainAsStuck(v);
02523 return false;
02524 } else {
02525
02526 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02527 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02528 }
02529 }
02530
02531 Vehicle *other_train = NULL;
02532 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02533
02534
02535
02536
02537
02538 if (other_train != NULL && other_train->index != v->index) {
02539 if (mark_as_stuck) MarkTrainAsStuck(v);
02540 return false;
02541 }
02542
02543 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02544
02545 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02546 ClrBit(v->flags, VRF_TRAIN_STUCK);
02547 return true;
02548 }
02549
02550
02551 if (v->track == TRACK_BIT_DEPOT) {
02552 SetDepotReservation(v->tile, true);
02553 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02554 }
02555
02556 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02557 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02558 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02559
02560 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02561
02562 bool res_made = false;
02563 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02564
02565 if (!res_made) {
02566
02567 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02568 return false;
02569 }
02570
02571 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02572 v->wait_counter = 0;
02573 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02574 }
02575 ClrBit(v->flags, VRF_TRAIN_STUCK);
02576 return true;
02577 }
02578
02579
02580 static bool CheckReverseTrain(const Train *v)
02581 {
02582 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02583 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02584 !(v->direction & 1)) {
02585 return false;
02586 }
02587
02588 assert(v->track != TRACK_BIT_NONE);
02589
02590 switch (_settings_game.pf.pathfinder_for_trains) {
02591 case VPF_NPF: return NPFTrainCheckReverse(v);
02592 case VPF_YAPF: return YapfTrainCheckReverse(v);
02593
02594 default: NOT_REACHED();
02595 }
02596 }
02597
02598 TileIndex Train::GetOrderStationLocation(StationID station)
02599 {
02600 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02601
02602 const Station *st = Station::Get(station);
02603 if (!(st->facilities & FACIL_TRAIN)) {
02604
02605 this->IncrementRealOrderIndex();
02606 return 0;
02607 }
02608
02609 return st->xy;
02610 }
02611
02612 void Train::MarkDirty()
02613 {
02614 Train *v = this;
02615 do {
02616 v->UpdateViewport(false, false);
02617 } while ((v = v->Next()) != NULL);
02618
02619
02620 this->CargoChanged();
02621 this->UpdateAcceleration();
02622 }
02623
02631 int Train::UpdateSpeed()
02632 {
02633 switch (_settings_game.vehicle.train_acceleration_model) {
02634 default: NOT_REACHED();
02635 case AM_ORIGINAL:
02636 return this->DoUpdateSpeed(this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2), 0, this->gcache.cached_max_track_speed);
02637
02638 case AM_REALISTIC:
02639 return this->DoUpdateSpeed(this->GetAcceleration(), this->GetAccelerationStatus() == AS_BRAKE ? 0 : 2, this->GetCurrentMaxSpeed());
02640 }
02641 }
02642
02648 static void TrainEnterStation(Train *v, StationID station)
02649 {
02650 v->last_station_visited = station;
02651
02652
02653 Station *st = Station::Get(station);
02654 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02655 st->had_vehicle_of_type |= HVOT_TRAIN;
02656 SetDParam(0, st->index);
02657 AddVehicleNewsItem(
02658 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02659 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
02660 v->index,
02661 st->index
02662 );
02663 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
02664 }
02665
02666 v->force_proceed = TFP_NONE;
02667 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02668
02669 v->BeginLoading();
02670
02671 TriggerStationAnimation(st, v->tile, SAT_TRAIN_ARRIVES);
02672 }
02673
02674
02675 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
02676 {
02677 return IsTileOwner(tile, v->owner) &&
02678 (!v->IsFrontEngine() || HasBit(v->compatible_railtypes, GetRailType(tile)));
02679 }
02680
02681 struct RailtypeSlowdownParams {
02682 byte small_turn, large_turn;
02683 byte z_up;
02684 byte z_down;
02685 };
02686
02687 static const RailtypeSlowdownParams _railtype_slowdown[] = {
02688
02689 {256 / 4, 256 / 2, 256 / 4, 2},
02690 {256 / 4, 256 / 2, 256 / 4, 2},
02691 {256 / 4, 256 / 2, 256 / 4, 2},
02692 {0, 256 / 2, 256 / 4, 2},
02693 };
02694
02696 static inline void AffectSpeedByZChange(Train *v, byte old_z)
02697 {
02698 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
02699
02700 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
02701
02702 if (old_z < v->z_pos) {
02703 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
02704 } else {
02705 uint16 spd = v->cur_speed + rsp->z_down;
02706 if (spd <= v->gcache.cached_max_track_speed) v->cur_speed = spd;
02707 }
02708 }
02709
02710 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
02711 {
02712 if (IsTileType(tile, MP_RAILWAY) &&
02713 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
02714 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
02715 Trackdir trackdir = FindFirstTrackdir(tracks);
02716 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
02717
02718 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
02719 }
02720 }
02721 return false;
02722 }
02723
02727 void Train::ReserveTrackUnderConsist() const
02728 {
02729 for (const Train *u = this; u != NULL; u = u->Next()) {
02730 switch (u->track) {
02731 case TRACK_BIT_WORMHOLE:
02732 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
02733 break;
02734 case TRACK_BIT_DEPOT:
02735 break;
02736 default:
02737 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
02738 break;
02739 }
02740 }
02741 }
02742
02743 uint Train::Crash(bool flooded)
02744 {
02745 uint pass = 0;
02746 if (this->IsFrontEngine()) {
02747 pass += 2;
02748
02749
02750
02751 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
02752 for (const Train *v = this; v != NULL; v = v->Next()) {
02753 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
02754 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
02755
02756
02757 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
02758 }
02759 }
02760
02761
02762
02763 TileIndex crossing = TrainApproachingCrossingTile(this);
02764 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
02765
02766
02767 HideFillingPercent(&this->fill_percent_te_id);
02768 }
02769
02770 pass += this->GroundVehicleBase::Crash(flooded);
02771
02772 this->crash_anim_pos = flooded ? 4000 : 1;
02773 return pass;
02774 }
02775
02782 static uint TrainCrashed(Train *v)
02783 {
02784 uint num = 0;
02785
02786
02787 if (!(v->vehstatus & VS_CRASHED)) {
02788 num = v->Crash();
02789 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
02790 }
02791
02792
02793
02794 v->ReserveTrackUnderConsist();
02795
02796 return num;
02797 }
02798
02799 struct TrainCollideChecker {
02800 Train *v;
02801 uint num;
02802 };
02803
02804 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
02805 {
02806 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
02807
02808
02809 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
02810
02811
02812 if (v->owner != tcc->v->owner) return NULL;
02813
02814
02815 Train *coll = Train::From(v)->First();
02816
02817
02818 if (coll == tcc->v) return NULL;
02819
02820 int x_diff = v->x_pos - tcc->v->x_pos;
02821 int y_diff = v->y_pos - tcc->v->y_pos;
02822
02823
02824
02825
02826
02827 uint hash = (y_diff + 7) | (x_diff + 7);
02828 if (hash & ~15) return NULL;
02829
02830
02831 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
02832
02833
02834 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
02835
02836
02837 tcc->num += TrainCrashed(tcc->v);
02838 tcc->num += TrainCrashed(coll);
02839
02840 return NULL;
02841 }
02842
02849 static bool CheckTrainCollision(Train *v)
02850 {
02851
02852 if (v->track == TRACK_BIT_DEPOT) return false;
02853
02854 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
02855
02856 TrainCollideChecker tcc;
02857 tcc.v = v;
02858 tcc.num = 0;
02859
02860
02861 if (v->track == TRACK_BIT_WORMHOLE) {
02862 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
02863 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
02864 } else {
02865 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
02866 }
02867
02868
02869 if (tcc.num == 0) return false;
02870
02871 SetDParam(0, tcc.num);
02872 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
02873 NS_ACCIDENT,
02874 v->index
02875 );
02876
02877 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
02878 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
02879 return true;
02880 }
02881
02882 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
02883 {
02884 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
02885
02886 Train *t = Train::From(v);
02887 DiagDirection exitdir = *(DiagDirection *)data;
02888
02889
02890 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
02891
02892 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
02893
02894 return t;
02895 }
02896
02897 static void TrainController(Train *v, Vehicle *nomove)
02898 {
02899 Train *first = v->First();
02900 Train *prev;
02901 bool direction_changed = false;
02902
02903
02904 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
02905 DiagDirection enterdir = DIAGDIR_BEGIN;
02906 bool update_signals_crossing = false;
02907
02908 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
02909 if (v->track != TRACK_BIT_WORMHOLE) {
02910
02911 if (gp.old_tile == gp.new_tile) {
02912
02913 if (v->track == TRACK_BIT_DEPOT) {
02914
02915 gp.x = v->x_pos;
02916 gp.y = v->y_pos;
02917 } else {
02918
02919
02920
02921 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v)) return;
02922
02923 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
02924 if (HasBit(r, VETS_CANNOT_ENTER)) {
02925 goto invalid_rail;
02926 }
02927 if (HasBit(r, VETS_ENTERED_STATION)) {
02928
02929 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
02930 }
02931 }
02932 } else {
02933
02934
02935
02936 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
02937 assert(IsValidDiagDirection(enterdir));
02938
02939
02940
02941 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
02942 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
02943
02944 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
02945 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
02946
02947 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
02948 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
02949
02950
02951 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
02952 }
02953
02954 if (bits == TRACK_BIT_NONE) goto invalid_rail;
02955
02956
02957
02958 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
02959
02960 TrackBits chosen_track;
02961 if (prev == NULL) {
02962
02963
02964 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
02965 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
02966
02967 if (v->force_proceed != TFP_NONE && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
02968
02969
02970
02971
02972 Trackdir dir = FindFirstTrackdir(trackdirbits);
02973 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
02974 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
02975
02976
02977 v->force_proceed = (v->force_proceed == TFP_SIGNAL) ? TFP_STUCK : TFP_NONE;
02978 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02979 }
02980 }
02981
02982
02983 if ((red_signals & chosen_track) && v->force_proceed == TFP_NONE) {
02984
02985 Trackdir i = FindFirstTrackdir(trackdirbits);
02986
02987
02988 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return;
02989
02990 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
02991 v->cur_speed = 0;
02992 v->subspeed = 0;
02993 v->progress = 255 - 100;
02994 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return;
02995 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
02996 v->cur_speed = 0;
02997 v->subspeed = 0;
02998 v->progress = 255 - 10;
02999 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03000 DiagDirection exitdir = TrackdirToExitdir(i);
03001 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03002
03003 exitdir = ReverseDiagDir(exitdir);
03004
03005
03006 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return;
03007 }
03008 }
03009
03010
03011
03012
03013
03014 if (!_settings_game.pf.reverse_at_signals && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03015 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03016 v->wait_counter = 0;
03017 return;
03018 }
03019 goto reverse_train_direction;
03020 } else {
03021 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03022 }
03023 } else {
03024
03025 if (prev->tile == gp.new_tile) {
03026
03027 if (prev->track == TRACK_BIT_WORMHOLE) {
03028
03029
03030 assert(IsTunnel(prev->tile));
03031 chosen_track = bits;
03032 } else {
03033 chosen_track = prev->track;
03034 }
03035 } else {
03036
03037
03038
03039
03040
03041
03042
03043 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03044 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03045 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03046 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03047 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03048 };
03049 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03050 assert(IsValidDiagDirection(exitdir));
03051 chosen_track = _connecting_track[enterdir][exitdir];
03052 }
03053 chosen_track &= bits;
03054 }
03055
03056
03057 assert(
03058 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03059 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03060 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03061
03062
03063 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03064 gp.x = (gp.x & ~0xF) | b[0];
03065 gp.y = (gp.y & ~0xF) | b[1];
03066 Direction chosen_dir = (Direction)b[2];
03067
03068
03069 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03070 if (HasBit(r, VETS_CANNOT_ENTER)) {
03071 goto invalid_rail;
03072 }
03073
03074 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03075 Track track = FindFirstTrack(chosen_track);
03076 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03077 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03078 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03079 MarkTileDirtyByTile(gp.new_tile);
03080 }
03081
03082
03083 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03084
03085 v->tile = gp.new_tile;
03086
03087 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03088 v->First()->RailtypeChanged();
03089 }
03090
03091 v->track = chosen_track;
03092 assert(v->track);
03093 }
03094
03095
03096
03097 update_signals_crossing = true;
03098
03099 if (chosen_dir != v->direction) {
03100 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03101 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03102 DirDiff diff = DirDifference(v->direction, chosen_dir);
03103 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03104 }
03105 direction_changed = true;
03106 v->direction = chosen_dir;
03107 }
03108
03109 if (v->IsFrontEngine()) {
03110 v->wait_counter = 0;
03111
03112
03113 TileIndex crossing = TrainApproachingCrossingTile(v);
03114 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03115
03116
03117 CheckNextTrainTile(v);
03118 }
03119
03120 if (HasBit(r, VETS_ENTERED_STATION)) {
03121
03122 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03123 }
03124 }
03125 } else {
03126
03127
03128
03129 if (!(v->vehstatus & VS_HIDDEN)) {
03130 Train *first = v->First();
03131 first->cur_speed = min(first->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03132 }
03133
03134 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03135
03136 if (v->IsFrontEngine()) {
03137 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03138 CheckNextTrainTile(v);
03139 }
03140
03141
03142 if (gp.old_tile == gp.new_tile) {
03143 gp.old_tile = GetOtherTunnelBridgeEnd(gp.old_tile);
03144 }
03145 } else {
03146 v->x_pos = gp.x;
03147 v->y_pos = gp.y;
03148 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03149 continue;
03150 }
03151 }
03152
03153
03154 v->UpdateDeltaXY(v->direction);
03155
03156 v->x_pos = gp.x;
03157 v->y_pos = gp.y;
03158
03159
03160 byte old_z = v->UpdateInclination(gp.new_tile != gp.old_tile, false);
03161
03162 if (prev == NULL) {
03163
03164 AffectSpeedByZChange(v, old_z);
03165 }
03166
03167 if (update_signals_crossing) {
03168 if (v->IsFrontEngine()) {
03169 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03170
03171
03172
03173
03174
03175
03176
03177
03178 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03179 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03180 !TryPathReserve(v)) {
03181 MarkTrainAsStuck(v);
03182 }
03183 }
03184 }
03185
03186
03187
03188 if (v->Next() == NULL) {
03189 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03190 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03191 }
03192 }
03193
03194
03195 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03196 }
03197
03198 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03199
03200 return;
03201
03202 invalid_rail:
03203
03204 if (prev != NULL) error("Disconnecting train");
03205
03206 reverse_train_direction:
03207 v->wait_counter = 0;
03208 v->cur_speed = 0;
03209 v->subspeed = 0;
03210 ReverseTrainDirection(v);
03211 }
03212
03219 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03220 {
03221 TrackBits *trackbits = (TrackBits *)data;
03222
03223 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03224 TrackBits train_tbits = Train::From(v)->track;
03225 if (train_tbits == TRACK_BIT_WORMHOLE) {
03226
03227 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03228 } else if (train_tbits != TRACK_BIT_DEPOT) {
03229 *trackbits |= train_tbits;
03230 }
03231 }
03232
03233 return NULL;
03234 }
03235
03243 static void DeleteLastWagon(Train *v)
03244 {
03245 Train *first = v->First();
03246
03247
03248
03249
03250 Train *u = v;
03251 for (; v->Next() != NULL; v = v->Next()) u = v;
03252 u->SetNext(NULL);
03253
03254 if (first != v) {
03255
03256 first->ConsistChanged(false);
03257
03258
03259 if (first->track == TRACK_BIT_DEPOT) {
03260 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03261 }
03262 }
03263
03264
03265 TrackBits trackbits = v->track;
03266 TileIndex tile = v->tile;
03267 Owner owner = v->owner;
03268
03269 delete v;
03270 v = NULL;
03271
03272 if (trackbits == TRACK_BIT_WORMHOLE) {
03273
03274 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03275 }
03276
03277 Track track = TrackBitsToTrack(trackbits);
03278 if (HasReservedTracks(tile, trackbits)) {
03279 UnreserveRailTrack(tile, track);
03280
03281
03282 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03283 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03284
03285
03286 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03287 Track t;
03288 FOR_EACH_SET_TRACK(t, remaining_trackbits) TryReserveRailTrack(tile, t);
03289 }
03290
03291
03292 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03293
03294
03295 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03296 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03297 } else {
03298 SetSignalsOnBothDir(tile, track, owner);
03299 }
03300 }
03301
03302 static void ChangeTrainDirRandomly(Train *v)
03303 {
03304 static const DirDiff delta[] = {
03305 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03306 };
03307
03308 do {
03309
03310 if (!(v->vehstatus & VS_HIDDEN)) {
03311 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03312 v->UpdateDeltaXY(v->direction);
03313 v->cur_image = v->GetImage(v->direction);
03314
03315
03316
03317 if (v->track != TRACK_BIT_WORMHOLE) v->UpdateInclination(false, false);
03318 }
03319 } while ((v = v->Next()) != NULL);
03320 }
03321
03322 static bool HandleCrashedTrain(Train *v)
03323 {
03324 int state = ++v->crash_anim_pos;
03325
03326 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03327 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03328 }
03329
03330 uint32 r;
03331 if (state <= 200 && Chance16R(1, 7, r)) {
03332 int index = (r * 10 >> 16);
03333
03334 Vehicle *u = v;
03335 do {
03336 if (--index < 0) {
03337 r = Random();
03338
03339 CreateEffectVehicleRel(u,
03340 GB(r, 8, 3) + 2,
03341 GB(r, 16, 3) + 2,
03342 GB(r, 0, 3) + 5,
03343 EV_EXPLOSION_SMALL);
03344 break;
03345 }
03346 } while ((u = u->Next()) != NULL);
03347 }
03348
03349 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03350
03351 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03352 bool ret = v->Next() != NULL;
03353 DeleteLastWagon(v);
03354 return ret;
03355 }
03356
03357 return true;
03358 }
03359
03361 static const uint16 _breakdown_speeds[16] = {
03362 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03363 };
03364
03365
03373 static bool TrainApproachingLineEnd(Train *v, bool signal)
03374 {
03375
03376 uint x = v->x_pos & 0xF;
03377 uint y = v->y_pos & 0xF;
03378
03379
03380
03381 switch (v->direction) {
03382 case DIR_N : x = ~x + ~y + 25; break;
03383 case DIR_NW: x = y;
03384 case DIR_NE: x = ~x + 16; break;
03385 case DIR_E : x = ~x + y + 9; break;
03386 case DIR_SE: x = y; break;
03387 case DIR_S : x = x + y - 7; break;
03388 case DIR_W : x = ~y + x + 9; break;
03389 default: break;
03390 }
03391
03392
03393 if (!signal && x + (v->gcache.cached_veh_length + 1) / 2 >= TILE_SIZE) {
03394
03395 v->cur_speed = 0;
03396 ReverseTrainDirection(v);
03397 return false;
03398 }
03399
03400
03401 v->vehstatus |= VS_TRAIN_SLOWING;
03402 uint16 break_speed = _breakdown_speeds[x & 0xF];
03403 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03404
03405 return true;
03406 }
03407
03408
03414 static bool TrainCanLeaveTile(const Train *v)
03415 {
03416
03417 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03418
03419 TileIndex tile = v->tile;
03420
03421
03422 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03423 DiagDirection dir = GetTunnelBridgeDirection(tile);
03424 if (DiagDirToDir(dir) == v->direction) return false;
03425 }
03426
03427
03428 if (IsRailDepotTile(tile)) {
03429 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03430 if (DiagDirToDir(dir) == v->direction) return false;
03431 }
03432
03433 return true;
03434 }
03435
03436
03444 static TileIndex TrainApproachingCrossingTile(const Train *v)
03445 {
03446 assert(v->IsFrontEngine());
03447 assert(!(v->vehstatus & VS_CRASHED));
03448
03449 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03450
03451 DiagDirection dir = TrainExitDir(v->direction, v->track);
03452 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03453
03454
03455 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03456 !CheckCompatibleRail(v, tile)) {
03457 return INVALID_TILE;
03458 }
03459
03460 return tile;
03461 }
03462
03463
03470 static bool TrainCheckIfLineEnds(Train *v)
03471 {
03472
03473
03474 int t = v->breakdown_ctr;
03475 if (t > 1) {
03476 v->vehstatus |= VS_TRAIN_SLOWING;
03477
03478 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03479 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03480 } else {
03481 v->vehstatus &= ~VS_TRAIN_SLOWING;
03482 }
03483
03484 if (!TrainCanLeaveTile(v)) return true;
03485
03486
03487 DiagDirection dir = TrainExitDir(v->direction, v->track);
03488
03489 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03490
03491
03492 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03493 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03494
03495 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03496 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03497
03498
03499
03500
03501 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03502 if (_settings_game.pf.forbid_90_deg) {
03503 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03504 }
03505
03506
03507 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03508 return TrainApproachingLineEnd(v, false);
03509 }
03510
03511
03512 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
03513
03514
03515 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03516
03517 return true;
03518 }
03519
03520
03521 static bool TrainLocoHandler(Train *v, bool mode)
03522 {
03523
03524 if (v->vehstatus & VS_CRASHED) {
03525 return mode ? true : HandleCrashedTrain(v);
03526 }
03527
03528 if (v->force_proceed != TFP_NONE) {
03529 ClrBit(v->flags, VRF_TRAIN_STUCK);
03530 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03531 }
03532
03533
03534 if (v->HandleBreakdown()) return true;
03535
03536 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03537 ReverseTrainDirection(v);
03538 }
03539
03540
03541 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03542
03543 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03544 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03545 v->wait_counter = 0;
03546 v->cur_speed = 0;
03547 v->subspeed = 0;
03548 ClrBit(v->flags, VRF_LEAVING_STATION);
03549 ReverseTrainDirection(v);
03550 return true;
03551 } else if (HasBit(v->flags, VRF_LEAVING_STATION)) {
03552
03553
03554
03555 DiagDirection dir = TrainExitDir(v->direction, v->track);
03556 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
03557
03558 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
03559 TryPathReserve(v, true, true);
03560 }
03561 ClrBit(v->flags, VRF_LEAVING_STATION);
03562 }
03563
03564 v->HandleLoading(mode);
03565
03566 if (v->current_order.IsType(OT_LOADING)) return true;
03567
03568 if (CheckTrainStayInDepot(v)) return true;
03569
03570 if (!mode) v->ShowVisualEffect();
03571
03572
03573 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03574 CheckNextTrainTile(v);
03575 }
03576
03577
03578 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03579 ++v->wait_counter;
03580
03581
03582 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.reverse_at_signals;
03583
03584 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == TFP_NONE) return true;
03585 if (!TryPathReserve(v)) {
03586
03587 if (turn_around) ReverseTrainDirection(v);
03588
03589 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03590
03591 if (_settings_client.gui.lost_vehicle_warn && v->owner == _local_company) {
03592 SetDParam(0, v->index);
03593 AddVehicleNewsItem(
03594 STR_NEWS_TRAIN_IS_STUCK,
03595 NS_ADVICE,
03596 v->index
03597 );
03598 }
03599 v->wait_counter = 0;
03600 }
03601
03602 if (v->force_proceed == TFP_NONE) return true;
03603 ClrBit(v->flags, VRF_TRAIN_STUCK);
03604 v->wait_counter = 0;
03605 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03606 }
03607 }
03608
03609 if (v->current_order.IsType(OT_LEAVESTATION)) {
03610 v->current_order.Free();
03611 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03612 return true;
03613 }
03614
03615 int j = v->UpdateSpeed();
03616
03617
03618 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
03619
03620 v->force_proceed = TFP_NONE;
03621 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03622 }
03623
03624 int adv_spd = v->GetAdvanceDistance();
03625 if (j < adv_spd) {
03626
03627 if (v->cur_speed == 0) v->SetLastSpeed();
03628 } else {
03629 TrainCheckIfLineEnds(v);
03630
03631 for (;;) {
03632 j -= adv_spd;
03633 TrainController(v, NULL);
03634
03635 if (CheckTrainCollision(v)) break;
03636
03637 adv_spd = v->GetAdvanceDistance();
03638
03639
03640 if (j < adv_spd || v->cur_speed == 0) break;
03641
03642 OrderType order_type = v->current_order.GetType();
03643
03644 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
03645 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
03646 IsTileType(v->tile, MP_STATION) &&
03647 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
03648 ProcessOrders(v);
03649 }
03650 }
03651 v->SetLastSpeed();
03652 }
03653
03654 for (Train *u = v; u != NULL; u = u->Next()) {
03655 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
03656
03657 u->UpdateViewport(false, false);
03658 }
03659
03660 if (v->progress == 0) v->progress = j;
03661
03662 return true;
03663 }
03664
03665
03666
03667 Money Train::GetRunningCost() const
03668 {
03669 Money cost = 0;
03670 const Train *v = this;
03671
03672 do {
03673 const Engine *e = Engine::Get(v->engine_type);
03674 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
03675
03676 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
03677 if (cost_factor == 0) continue;
03678
03679
03680 if (v->IsMultiheaded()) cost_factor /= 2;
03681
03682 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->grf_prop.grffile);
03683 } while ((v = v->GetNextVehicle()) != NULL);
03684
03685 return cost;
03686 }
03687
03688
03689 bool Train::Tick()
03690 {
03691 this->tick_counter++;
03692
03693 if (this->IsFrontEngine()) {
03694 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
03695
03696 this->current_order_time++;
03697
03698 if (!TrainLocoHandler(this, false)) return false;
03699
03700 return TrainLocoHandler(this, true);
03701 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
03702
03703 if (++this->crash_anim_pos >= 4400) {
03704 delete this;
03705 return false;
03706 }
03707 }
03708
03709 return true;
03710 }
03711
03712 static void CheckIfTrainNeedsService(Train *v)
03713 {
03714 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
03715 if (v->IsInDepot()) {
03716 VehicleServiceInDepot(v);
03717 return;
03718 }
03719
03720 uint max_penalty;
03721 switch (_settings_game.pf.pathfinder_for_trains) {
03722 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
03723 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
03724 default: NOT_REACHED();
03725 }
03726
03727 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
03728
03729 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
03730 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
03731
03732
03733
03734 v->current_order.MakeDummy();
03735 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03736 }
03737 return;
03738 }
03739
03740 DepotID depot = GetDepotIndex(tfdd.tile);
03741
03742 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
03743 v->current_order.GetDestination() != depot &&
03744 !Chance16(3, 16)) {
03745 return;
03746 }
03747
03748 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
03749 v->dest_tile = tfdd.tile;
03750 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03751 }
03752
03753 void Train::OnNewDay()
03754 {
03755 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
03756
03757 if (this->IsFrontEngine()) {
03758 CheckVehicleBreakdown(this);
03759 AgeVehicle(this);
03760
03761 CheckIfTrainNeedsService(this);
03762
03763 CheckOrders(this);
03764
03765
03766 if (this->current_order.IsType(OT_GOTO_STATION)) {
03767 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
03768 if (tile != INVALID_TILE) this->dest_tile = tile;
03769 }
03770
03771 if (this->running_ticks != 0) {
03772
03773 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
03774
03775 this->profit_this_year -= cost.GetCost();
03776 this->running_ticks = 0;
03777
03778 SubtractMoneyFromCompanyFract(this->owner, cost);
03779
03780 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
03781 SetWindowClassesDirty(WC_TRAINS_LIST);
03782 }
03783 } else if (this->IsEngine()) {
03784
03785 AgeVehicle(this);
03786 }
03787 }
03788
03789 Trackdir Train::GetVehicleTrackdir() const
03790 {
03791 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
03792
03793 if (this->track == TRACK_BIT_DEPOT) {
03794
03795 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
03796 }
03797
03798 if (this->track == TRACK_BIT_WORMHOLE) {
03799
03800 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
03801 }
03802
03803 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
03804 }