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00012 #include "stdafx.h"
00013 #include "error.h"
00014 #include "articulated_vehicles.h"
00015 #include "command_func.h"
00016 #include "pathfinder/npf/npf_func.h"
00017 #include "pathfinder/yapf/yapf.hpp"
00018 #include "news_func.h"
00019 #include "company_func.h"
00020 #include "vehicle_gui.h"
00021 #include "newgrf_sound.h"
00022 #include "newgrf_text.h"
00023 #include "group.h"
00024 #include "strings_func.h"
00025 #include "viewport_func.h"
00026 #include "window_func.h"
00027 #include "vehicle_func.h"
00028 #include "sound_func.h"
00029 #include "ai/ai.hpp"
00030 #include "game/game.hpp"
00031 #include "newgrf_station.h"
00032 #include "effectvehicle_func.h"
00033 #include "gamelog.h"
00034 #include "network/network.h"
00035 #include "spritecache.h"
00036 #include "core/random_func.hpp"
00037 #include "company_base.h"
00038 #include "newgrf.h"
00039 #include "order_backup.h"
00040 #include "zoom_func.h"
00041
00042 #include "table/strings.h"
00043 #include "table/train_cmd.h"
00044
00045 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck);
00046 static bool TrainCheckIfLineEnds(Train *v, bool reverse = true);
00047 bool TrainController(Train *v, Vehicle *nomove, bool reverse = true);
00048 static TileIndex TrainApproachingCrossingTile(const Train *v);
00049 static void CheckIfTrainNeedsService(Train *v);
00050 static void CheckNextTrainTile(Train *v);
00051
00052 static const byte _vehicle_initial_x_fract[4] = {10, 8, 4, 8};
00053 static const byte _vehicle_initial_y_fract[4] = { 8, 4, 8, 10};
00054
00055
00063 static inline DiagDirection TrainExitDir(Direction direction, TrackBits track)
00064 {
00065 static const TrackBits state_dir_table[DIAGDIR_END] = { TRACK_BIT_RIGHT, TRACK_BIT_LOWER, TRACK_BIT_LEFT, TRACK_BIT_UPPER };
00066
00067 DiagDirection diagdir = DirToDiagDir(direction);
00068
00069
00070 if (!HasBit(direction, 0) && track != state_dir_table[diagdir]) {
00071 diagdir = ChangeDiagDir(diagdir, DIAGDIRDIFF_90LEFT);
00072 }
00073
00074 return diagdir;
00075 }
00076
00077
00083 byte FreightWagonMult(CargoID cargo)
00084 {
00085 if (!CargoSpec::Get(cargo)->is_freight) return 1;
00086 return _settings_game.vehicle.freight_trains;
00087 }
00088
00090 void CheckTrainsLengths()
00091 {
00092 const Train *v;
00093 bool first = true;
00094
00095 FOR_ALL_TRAINS(v) {
00096 if (v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00097 for (const Train *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00098 if (u->track != TRACK_BIT_DEPOT) {
00099 if ((w->track != TRACK_BIT_DEPOT &&
00100 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->CalcNextVehicleOffset()) ||
00101 (w->track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00102 SetDParam(0, v->index);
00103 SetDParam(1, v->owner);
00104 ShowErrorMessage(STR_BROKEN_VEHICLE_LENGTH, INVALID_STRING_ID, WL_CRITICAL);
00105
00106 if (!_networking && first) {
00107 first = false;
00108 DoCommandP(0, PM_PAUSED_ERROR, 1, CMD_PAUSE);
00109 }
00110
00111 break;
00112 }
00113 }
00114 }
00115 }
00116 }
00117 }
00118
00123 void Train::RailtypeChanged()
00124 {
00125 for (Train *u = this; u != NULL; u = u->Next()) {
00126
00127 u->UpdateVisualEffect(false);
00128 }
00129 this->PowerChanged();
00130 if (this->IsFrontEngine()) this->UpdateAcceleration();
00131 }
00132
00139 void Train::ConsistChanged(bool same_length)
00140 {
00141 uint16 max_speed = UINT16_MAX;
00142
00143 assert(this->IsFrontEngine() || this->IsFreeWagon());
00144
00145 const RailVehicleInfo *rvi_v = RailVehInfo(this->engine_type);
00146 EngineID first_engine = this->IsFrontEngine() ? this->engine_type : INVALID_ENGINE;
00147 this->gcache.cached_total_length = 0;
00148 this->compatible_railtypes = RAILTYPES_NONE;
00149
00150 bool train_can_tilt = true;
00151
00152 for (Train *u = this; u != NULL; u = u->Next()) {
00153 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00154
00155
00156 assert(u->First() == this);
00157
00158
00159 u->gcache.first_engine = this == u ? INVALID_ENGINE : first_engine;
00160 u->railtype = rvi_u->railtype;
00161
00162 if (u->IsEngine()) first_engine = u->engine_type;
00163
00164
00165 u->tcache.user_def_data = rvi_u->user_def_data;
00166 this->InvalidateNewGRFCache();
00167 u->InvalidateNewGRFCache();
00168 }
00169
00170 for (Train *u = this; u != NULL; u = u->Next()) {
00171
00172 u->tcache.user_def_data = GetVehicleProperty(u, PROP_TRAIN_USER_DATA, u->tcache.user_def_data);
00173 this->InvalidateNewGRFCache();
00174 u->InvalidateNewGRFCache();
00175 }
00176
00177 for (Train *u = this; u != NULL; u = u->Next()) {
00178 const Engine *e_u = u->GetEngine();
00179 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00180
00181 if (!HasBit(e_u->info.misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00182
00183
00184 u->tcache.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->gcache.first_engine);
00185
00186
00187 u->colourmap = PAL_NONE;
00188
00189
00190 u->UpdateVisualEffect(true);
00191
00192 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00193 UsesWagonOverride(u) && !HasBit(u->vcache.cached_vis_effect, VE_DISABLE_WAGON_POWER)) {
00194
00195 SetBit(u->flags, VRF_POWEREDWAGON);
00196 } else {
00197 ClrBit(u->flags, VRF_POWEREDWAGON);
00198 }
00199
00200 if (!u->IsArticulatedPart()) {
00201
00202
00203 if (rvi_u->power > 0) {
00204 this->compatible_railtypes |= GetRailTypeInfo(u->railtype)->powered_railtypes;
00205 }
00206
00207
00208
00209 if (HasBit(u->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00210 u->railtype = RAILTYPE_RAIL;
00211 u->compatible_railtypes |= RAILTYPES_RAIL;
00212 }
00213
00214
00215 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00216 uint16 speed = GetVehicleProperty(u, PROP_TRAIN_SPEED, rvi_u->max_speed);
00217 if (speed != 0) max_speed = min(speed, max_speed);
00218 }
00219 }
00220
00221 u->cargo_cap = e_u->DetermineCapacity(u);
00222 u->vcache.cached_cargo_age_period = GetVehicleProperty(u, PROP_TRAIN_CARGO_AGE_PERIOD, e_u->info.cargo_age_period);
00223
00224
00225 uint16 veh_len = CALLBACK_FAILED;
00226 if (e_u->GetGRF() != NULL && e_u->GetGRF()->grf_version >= 8) {
00227
00228 veh_len = GetVehicleProperty(u, PROP_TRAIN_SHORTEN_FACTOR, CALLBACK_FAILED);
00229 } else if (HasBit(e_u->info.callback_mask, CBM_VEHICLE_LENGTH)) {
00230
00231 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00232 }
00233 if (veh_len != CALLBACK_FAILED && veh_len >= VEHICLE_LENGTH) {
00234 ErrorUnknownCallbackResult(e_u->GetGRFID(), CBID_VEHICLE_LENGTH, veh_len);
00235 }
00236 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00237 veh_len = VEHICLE_LENGTH - Clamp(veh_len, 0, VEHICLE_LENGTH - 1);
00238
00239
00240 if (same_length && veh_len != u->gcache.cached_veh_length) VehicleLengthChanged(u);
00241
00242
00243 if (!same_length) u->gcache.cached_veh_length = veh_len;
00244
00245 this->gcache.cached_total_length += u->gcache.cached_veh_length;
00246 this->InvalidateNewGRFCache();
00247 u->InvalidateNewGRFCache();
00248 }
00249
00250
00251 this->vcache.cached_max_speed = max_speed;
00252 this->tcache.cached_tilt = train_can_tilt;
00253 this->tcache.cached_max_curve_speed = this->GetCurveSpeedLimit();
00254
00255
00256 this->CargoChanged();
00257
00258 if (this->IsFrontEngine()) {
00259 this->UpdateAcceleration();
00260 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00261 InvalidateWindowData(WC_VEHICLE_REFIT, this->index);
00262 }
00263 }
00264
00275 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length)
00276 {
00277 const Station *st = Station::Get(station_id);
00278 *station_ahead = st->GetPlatformLength(tile, DirToDiagDir(v->direction)) * TILE_SIZE;
00279 *station_length = st->GetPlatformLength(tile) * TILE_SIZE;
00280
00281
00282
00283 OrderStopLocation osl = OSL_PLATFORM_MIDDLE;
00284 if (v->gcache.cached_total_length >= *station_length) {
00285
00286 osl = OSL_PLATFORM_FAR_END;
00287 } else if (v->current_order.IsType(OT_GOTO_STATION) && v->current_order.GetDestination() == station_id) {
00288 osl = v->current_order.GetStopLocation();
00289 }
00290
00291
00292 int stop;
00293 switch (osl) {
00294 default: NOT_REACHED();
00295
00296 case OSL_PLATFORM_NEAR_END:
00297 stop = v->gcache.cached_total_length;
00298 break;
00299
00300 case OSL_PLATFORM_MIDDLE:
00301 stop = *station_length - (*station_length - v->gcache.cached_total_length) / 2;
00302 break;
00303
00304 case OSL_PLATFORM_FAR_END:
00305 stop = *station_length;
00306 break;
00307 }
00308
00309
00310
00311 return stop - (v->gcache.cached_veh_length + 1) / 2;
00312 }
00313
00314
00319 int Train::GetCurveSpeedLimit() const
00320 {
00321 assert(this->First() == this);
00322
00323 static const int absolute_max_speed = UINT16_MAX;
00324 int max_speed = absolute_max_speed;
00325
00326 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return max_speed;
00327
00328 int curvecount[2] = {0, 0};
00329
00330
00331 int numcurve = 0;
00332 int sum = 0;
00333 int pos = 0;
00334 int lastpos = -1;
00335 for (const Vehicle *u = this; u->Next() != NULL; u = u->Next(), pos++) {
00336 Direction this_dir = u->direction;
00337 Direction next_dir = u->Next()->direction;
00338
00339 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00340 if (dirdiff == DIRDIFF_SAME) continue;
00341
00342 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00343 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00344 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00345 if (lastpos != -1) {
00346 numcurve++;
00347 sum += pos - lastpos;
00348 if (pos - lastpos == 1 && max_speed > 88) {
00349 max_speed = 88;
00350 }
00351 }
00352 lastpos = pos;
00353 }
00354
00355
00356 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00357 max_speed = 61;
00358 }
00359 }
00360
00361 if (numcurve > 0 && max_speed > 88) {
00362 if (curvecount[0] == 1 && curvecount[1] == 1) {
00363 max_speed = absolute_max_speed;
00364 } else {
00365 sum /= numcurve;
00366 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00367 }
00368 }
00369
00370 if (max_speed != absolute_max_speed) {
00371
00372 const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00373 max_speed += (max_speed / 2) * rti->curve_speed;
00374
00375 if (this->tcache.cached_tilt) {
00376
00377 max_speed += max_speed / 5;
00378 }
00379 }
00380
00381 return max_speed;
00382 }
00383
00388 int Train::GetCurrentMaxSpeed() const
00389 {
00390 int max_speed = this->tcache.cached_max_curve_speed;
00391 assert(max_speed == this->GetCurveSpeedLimit());
00392
00393 if (IsRailStationTile(this->tile)) {
00394 StationID sid = GetStationIndex(this->tile);
00395 if (this->current_order.ShouldStopAtStation(this, sid)) {
00396 int station_ahead;
00397 int station_length;
00398 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00399
00400
00401
00402 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00403
00404 if (distance_to_go > 0) {
00405 int st_max_speed = 120;
00406
00407 int delta_v = this->cur_speed / (distance_to_go + 1);
00408 if (max_speed > (this->cur_speed - delta_v)) {
00409 st_max_speed = this->cur_speed - (delta_v / 10);
00410 }
00411
00412 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00413 max_speed = min(max_speed, st_max_speed);
00414 }
00415 }
00416 }
00417
00418 for (const Train *u = this; u != NULL; u = u->Next()) {
00419 if (u->track == TRACK_BIT_DEPOT) {
00420 max_speed = min(max_speed, 61);
00421 break;
00422 }
00423 }
00424
00425 return min(max_speed, this->gcache.cached_max_track_speed);
00426 }
00427
00429 void Train::UpdateAcceleration()
00430 {
00431 assert(this->IsFrontEngine());
00432
00433 uint power = this->gcache.cached_power;
00434 uint weight = this->gcache.cached_weight;
00435 assert(weight != 0);
00436 this->acceleration = Clamp(power / weight * 4, 1, 255);
00437 }
00438
00444 int Train::GetDisplayImageWidth(Point *offset) const
00445 {
00446 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00447 int vehicle_pitch = 0;
00448
00449 const Engine *e = this->GetEngine();
00450 if (e->GetGRF() != NULL && is_custom_sprite(e->u.rail.image_index)) {
00451 reference_width = e->GetGRF()->traininfo_vehicle_width;
00452 vehicle_pitch = e->GetGRF()->traininfo_vehicle_pitch;
00453 }
00454
00455 if (offset != NULL) {
00456 offset->x = reference_width / 2;
00457 offset->y = vehicle_pitch;
00458 }
00459 return this->gcache.cached_veh_length * reference_width / VEHICLE_LENGTH;
00460 }
00461
00462 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00463 {
00464 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00465 }
00466
00473 SpriteID Train::GetImage(Direction direction, EngineImageType image_type) const
00474 {
00475 uint8 spritenum = this->spritenum;
00476 SpriteID sprite;
00477
00478 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00479
00480 if (is_custom_sprite(spritenum)) {
00481 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)), image_type);
00482 if (sprite != 0) return sprite;
00483
00484 spritenum = this->GetEngine()->original_image_index;
00485 }
00486
00487 sprite = GetDefaultTrainSprite(spritenum, direction);
00488
00489 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00490
00491 return sprite;
00492 }
00493
00494 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y, EngineImageType image_type)
00495 {
00496 const Engine *e = Engine::Get(engine);
00497 Direction dir = rear_head ? DIR_E : DIR_W;
00498 uint8 spritenum = e->u.rail.image_index;
00499
00500 if (is_custom_sprite(spritenum)) {
00501 SpriteID sprite = GetCustomVehicleIcon(engine, dir, image_type);
00502 if (sprite != 0) {
00503 if (e->GetGRF() != NULL) {
00504 y += e->GetGRF()->traininfo_vehicle_pitch;
00505 }
00506 return sprite;
00507 }
00508
00509 spritenum = Engine::Get(engine)->original_image_index;
00510 }
00511
00512 if (rear_head) spritenum++;
00513
00514 return GetDefaultTrainSprite(spritenum, DIR_W);
00515 }
00516
00517 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal, EngineImageType image_type)
00518 {
00519 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00520 int yf = y;
00521 int yr = y;
00522
00523 SpriteID spritef = GetRailIcon(engine, false, yf, image_type);
00524 SpriteID spriter = GetRailIcon(engine, true, yr, image_type);
00525 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00526 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00527
00528 preferred_x = Clamp(preferred_x, left - UnScaleByZoom(real_spritef->x_offs, ZOOM_LVL_GUI) + 14, right - UnScaleByZoom(real_spriter->width, ZOOM_LVL_GUI) - UnScaleByZoom(real_spriter->x_offs, ZOOM_LVL_GUI) - 15);
00529
00530 DrawSprite(spritef, pal, preferred_x - 14, yf);
00531 DrawSprite(spriter, pal, preferred_x + 15, yr);
00532 } else {
00533 SpriteID sprite = GetRailIcon(engine, false, y, image_type);
00534 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00535 preferred_x = Clamp(preferred_x, left - UnScaleByZoom(real_sprite->x_offs, ZOOM_LVL_GUI), right - UnScaleByZoom(real_sprite->width, ZOOM_LVL_GUI) - UnScaleByZoom(real_sprite->x_offs, ZOOM_LVL_GUI));
00536 DrawSprite(sprite, pal, preferred_x, y);
00537 }
00538 }
00539
00548 static CommandCost CmdBuildRailWagon(TileIndex tile, DoCommandFlag flags, const Engine *e, Vehicle **ret)
00549 {
00550 const RailVehicleInfo *rvi = &e->u.rail;
00551
00552
00553 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00554
00555 if (flags & DC_EXEC) {
00556 Train *v = new Train();
00557 *ret = v;
00558 v->spritenum = rvi->image_index;
00559
00560 v->engine_type = e->index;
00561 v->gcache.first_engine = INVALID_ENGINE;
00562
00563 DiagDirection dir = GetRailDepotDirection(tile);
00564
00565 v->direction = DiagDirToDir(dir);
00566 v->tile = tile;
00567
00568 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00569 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00570
00571 v->x_pos = x;
00572 v->y_pos = y;
00573 v->z_pos = GetSlopePixelZ(x, y);
00574 v->owner = _current_company;
00575 v->track = TRACK_BIT_DEPOT;
00576 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00577
00578 v->SetWagon();
00579
00580 v->SetFreeWagon();
00581 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00582
00583 v->cargo_type = e->GetDefaultCargoType();
00584 v->cargo_cap = rvi->capacity;
00585
00586 v->railtype = rvi->railtype;
00587
00588 v->build_year = _cur_year;
00589 v->cur_image = SPR_IMG_QUERY;
00590 v->random_bits = VehicleRandomBits();
00591
00592 v->group_id = DEFAULT_GROUP;
00593
00594 AddArticulatedParts(v);
00595
00596 _new_vehicle_id = v->index;
00597
00598 VehicleUpdatePosition(v);
00599 v->First()->ConsistChanged(false);
00600 UpdateTrainGroupID(v->First());
00601
00602 CheckConsistencyOfArticulatedVehicle(v);
00603
00604
00605 Train *w;
00606 FOR_ALL_TRAINS(w) {
00607 if (w->tile == tile &&
00608 w->IsFreeWagon() &&
00609 w->engine_type == e->index &&
00610 w->First() != v &&
00611 !(w->vehstatus & VS_CRASHED)) {
00612 DoCommand(0, v->index | 1 << 20, w->Last()->index, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00613 break;
00614 }
00615 }
00616 }
00617
00618 return CommandCost();
00619 }
00620
00622 static void NormalizeTrainVehInDepot(const Train *u)
00623 {
00624 const Train *v;
00625 FOR_ALL_TRAINS(v) {
00626 if (v->IsFreeWagon() && v->tile == u->tile &&
00627 v->track == TRACK_BIT_DEPOT) {
00628 if (DoCommand(0, v->index | 1 << 20, u->index, DC_EXEC,
00629 CMD_MOVE_RAIL_VEHICLE).Failed())
00630 break;
00631 }
00632 }
00633 }
00634
00635 static void AddRearEngineToMultiheadedTrain(Train *v)
00636 {
00637 Train *u = new Train();
00638 v->value >>= 1;
00639 u->value = v->value;
00640 u->direction = v->direction;
00641 u->owner = v->owner;
00642 u->tile = v->tile;
00643 u->x_pos = v->x_pos;
00644 u->y_pos = v->y_pos;
00645 u->z_pos = v->z_pos;
00646 u->track = TRACK_BIT_DEPOT;
00647 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00648 u->spritenum = v->spritenum + 1;
00649 u->cargo_type = v->cargo_type;
00650 u->cargo_subtype = v->cargo_subtype;
00651 u->cargo_cap = v->cargo_cap;
00652 u->railtype = v->railtype;
00653 u->engine_type = v->engine_type;
00654 u->build_year = v->build_year;
00655 u->cur_image = SPR_IMG_QUERY;
00656 u->random_bits = VehicleRandomBits();
00657 v->SetMultiheaded();
00658 u->SetMultiheaded();
00659 v->SetNext(u);
00660 VehicleUpdatePosition(u);
00661
00662
00663 v->other_multiheaded_part = u;
00664 u->other_multiheaded_part = v;
00665 }
00666
00676 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, const Engine *e, uint16 data, Vehicle **ret)
00677 {
00678 const RailVehicleInfo *rvi = &e->u.rail;
00679
00680 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(tile, flags, e, ret);
00681
00682
00683
00684 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00685
00686 if (flags & DC_EXEC) {
00687 DiagDirection dir = GetRailDepotDirection(tile);
00688 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00689 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00690
00691 Train *v = new Train();
00692 *ret = v;
00693 v->direction = DiagDirToDir(dir);
00694 v->tile = tile;
00695 v->owner = _current_company;
00696 v->x_pos = x;
00697 v->y_pos = y;
00698 v->z_pos = GetSlopePixelZ(x, y);
00699 v->track = TRACK_BIT_DEPOT;
00700 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00701 v->spritenum = rvi->image_index;
00702 v->cargo_type = e->GetDefaultCargoType();
00703 v->cargo_cap = rvi->capacity;
00704 v->last_station_visited = INVALID_STATION;
00705 v->last_loading_station = INVALID_STATION;
00706
00707 v->engine_type = e->index;
00708 v->gcache.first_engine = INVALID_ENGINE;
00709
00710 v->reliability = e->reliability;
00711 v->reliability_spd_dec = e->reliability_spd_dec;
00712 v->max_age = e->GetLifeLengthInDays();
00713
00714 v->railtype = rvi->railtype;
00715 _new_vehicle_id = v->index;
00716
00717 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00718 v->date_of_last_service = _date;
00719 v->build_year = _cur_year;
00720 v->cur_image = SPR_IMG_QUERY;
00721 v->random_bits = VehicleRandomBits();
00722
00723 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00724
00725 v->group_id = DEFAULT_GROUP;
00726
00727 v->SetFrontEngine();
00728 v->SetEngine();
00729
00730 VehicleUpdatePosition(v);
00731
00732 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00733 AddRearEngineToMultiheadedTrain(v);
00734 } else {
00735 AddArticulatedParts(v);
00736 }
00737
00738 v->ConsistChanged(false);
00739 UpdateTrainGroupID(v);
00740
00741 if (!HasBit(data, 0) && !(flags & DC_AUTOREPLACE)) {
00742 NormalizeTrainVehInDepot(v);
00743 }
00744
00745 CheckConsistencyOfArticulatedVehicle(v);
00746 }
00747
00748 return CommandCost();
00749 }
00750
00755 bool Train::IsInDepot() const
00756 {
00757
00758 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00759
00760
00761 for (const Train *v = this; v != NULL; v = v->Next()) {
00762 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00763 }
00764
00765 return true;
00766 }
00767
00772 bool Train::IsStoppedInDepot() const
00773 {
00774
00775 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00776 return this->IsInDepot();
00777 }
00778
00779 static Train *FindGoodVehiclePos(const Train *src)
00780 {
00781 EngineID eng = src->engine_type;
00782 TileIndex tile = src->tile;
00783
00784 Train *dst;
00785 FOR_ALL_TRAINS(dst) {
00786 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00787
00788 Train *t = dst;
00789 while (t->engine_type == eng) {
00790 t = t->Next();
00791 if (t == NULL) return dst;
00792 }
00793 }
00794 }
00795
00796 return NULL;
00797 }
00798
00800 typedef SmallVector<Train *, 16> TrainList;
00801
00807 static void MakeTrainBackup(TrainList &list, Train *t)
00808 {
00809 for (; t != NULL; t = t->Next()) *list.Append() = t;
00810 }
00811
00816 static void RestoreTrainBackup(TrainList &list)
00817 {
00818
00819 if (list.Length() == 0) return;
00820
00821 Train *prev = NULL;
00822
00823 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00824 Train *t = *iter;
00825 if (prev != NULL) {
00826 prev->SetNext(t);
00827 } else if (t->Previous() != NULL) {
00828
00829 t->Previous()->SetNext(NULL);
00830 }
00831 prev = t;
00832 }
00833 }
00834
00840 static void RemoveFromConsist(Train *part, bool chain = false)
00841 {
00842 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
00843
00844
00845
00846 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
00847
00848
00849 tail->SetNext(NULL);
00850 }
00851
00857 static void InsertInConsist(Train *dst, Train *chain)
00858 {
00859
00860 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
00861
00862 chain->Last()->SetNext(dst->Next());
00863 dst->SetNext(chain);
00864 }
00865
00871 static void NormaliseDualHeads(Train *t)
00872 {
00873 for (; t != NULL; t = t->GetNextVehicle()) {
00874 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
00875
00876
00877 Train *u;
00878 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
00879
00880 if (u == t->other_multiheaded_part) continue;
00881
00882
00883 RemoveFromConsist(t->other_multiheaded_part);
00884
00885 InsertInConsist(u, t->other_multiheaded_part);
00886 }
00887 }
00888
00893 static void NormaliseSubtypes(Train *chain)
00894 {
00895
00896 if (chain == NULL) return;
00897
00898
00899 assert(chain->Previous() == NULL);
00900
00901
00902 if (chain->IsWagon()) {
00903 chain->SetFreeWagon();
00904 } else {
00905 assert(chain->IsEngine());
00906 chain->SetFrontEngine();
00907 }
00908
00909
00910 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
00911 t->ClearFreeWagon();
00912 t->ClearFrontEngine();
00913 }
00914 }
00915
00925 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
00926 {
00927
00928
00929
00930 if ((src != NULL && src->IsEngine() ? 1 : 0) +
00931 (dst != NULL && dst->IsEngine() ? 1 : 0) -
00932 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
00933 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
00934 return CommandCost();
00935 }
00936
00937
00938
00939 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
00940
00941 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00942 }
00943
00949 static CommandCost CheckTrainAttachment(Train *t)
00950 {
00951
00952 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
00953
00954
00955
00956 int allowed_len = _settings_game.vehicle.max_train_length * TILE_SIZE - t->gcache.cached_veh_length;
00957
00958 Train *head = t;
00959 Train *prev = t;
00960
00961
00962 t = t->Next();
00963 prev->SetNext(NULL);
00964
00965
00966 head->InvalidateNewGRFCache();
00967
00968 while (t != NULL) {
00969 allowed_len -= t->gcache.cached_veh_length;
00970
00971 Train *next = t->Next();
00972
00973
00974
00975 t->SetNext(NULL);
00976
00977
00978 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
00979
00980 EngineID first_engine = t->gcache.first_engine;
00981 t->gcache.first_engine = INVALID_ENGINE;
00982
00983
00984
00985 t->InvalidateNewGRFCache();
00986
00987 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
00988
00989
00990 t->gcache.first_engine = first_engine;
00991
00992
00993 t->InvalidateNewGRFCache();
00994 head->InvalidateNewGRFCache();
00995
00996 if (callback != CALLBACK_FAILED) {
00997
00998 StringID error = STR_NULL;
00999
01000 if (t->GetGRF()->grf_version < 8) {
01001 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
01002 if (callback < 0xFD) error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
01003 if (callback >= 0x100) ErrorUnknownCallbackResult(head->GetGRFID(), CBID_TRAIN_ALLOW_WAGON_ATTACH, callback);
01004 } else {
01005 if (callback < 0x400) {
01006 error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
01007 } else {
01008 switch (callback) {
01009 case 0x400:
01010 case 0x401:
01011 break;
01012
01013 default:
01014 case 0x402:
01015 error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
01016 break;
01017 }
01018 }
01019 }
01020
01021 if (error != STR_NULL) return_cmd_error(error);
01022 }
01023 }
01024
01025
01026 prev->SetNext(t);
01027 prev = t;
01028 t = next;
01029 }
01030
01031 if (allowed_len < 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01032 return CommandCost();
01033 }
01034
01045 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
01046 {
01047
01048 CommandCost ret = CheckTrainAttachment(src);
01049 if (ret.Failed()) return ret;
01050 ret = CheckTrainAttachment(dst);
01051 if (ret.Failed()) return ret;
01052
01053
01054 return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
01055 }
01056
01065 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01066 {
01067
01068 if (*src_head == *dst_head) {
01069
01070
01071 *dst_head = NULL;
01072 } else if (*dst_head == NULL) {
01073
01074
01075 *dst_head = src;
01076 }
01077
01078 if (src == *src_head) {
01079
01080
01081
01082
01083
01084
01085 *src_head = move_chain ? NULL :
01086 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01087 }
01088
01089
01090
01091
01092 RemoveFromConsist(src, move_chain);
01093 if (*dst_head != src) InsertInConsist(dst, src);
01094
01095
01096
01097 NormaliseDualHeads(*src_head);
01098 NormaliseDualHeads(*dst_head);
01099 }
01100
01106 static void NormaliseTrainHead(Train *head)
01107 {
01108
01109 if (head == NULL) return;
01110
01111
01112 head->ConsistChanged(false);
01113 UpdateTrainGroupID(head);
01114
01115
01116 if (!head->IsFrontEngine()) return;
01117
01118
01119 InvalidateWindowData(WC_VEHICLE_REFIT, head->index);
01120 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, WID_VV_REFIT);
01121
01122
01123 if (head->unitnumber != 0) return;
01124 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01125 }
01126
01139 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01140 {
01141 VehicleID s = GB(p1, 0, 20);
01142 VehicleID d = GB(p2, 0, 20);
01143 bool move_chain = HasBit(p1, 20);
01144
01145 Train *src = Train::GetIfValid(s);
01146 if (src == NULL) return CMD_ERROR;
01147
01148 CommandCost ret = CheckOwnership(src->owner);
01149 if (ret.Failed()) return ret;
01150
01151
01152 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01153
01154
01155 Train *dst;
01156 if (d == INVALID_VEHICLE) {
01157 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01158 } else {
01159 dst = Train::GetIfValid(d);
01160 if (dst == NULL) return CMD_ERROR;
01161
01162 CommandCost ret = CheckOwnership(dst->owner);
01163 if (ret.Failed()) return ret;
01164
01165
01166 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01167 }
01168
01169
01170 src = src->GetFirstEnginePart();
01171 if (dst != NULL) {
01172 dst = dst->GetFirstEnginePart();
01173 }
01174
01175
01176 if (src == dst) return CommandCost();
01177
01178
01179 Train *src_head = src->First();
01180 Train *dst_head;
01181 if (dst != NULL) {
01182 dst_head = dst->First();
01183 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01184
01185 dst = dst->GetLastEnginePart();
01186 } else {
01187 dst_head = NULL;
01188 }
01189
01190 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01191
01192
01193 if (move_chain && src_head == dst_head) return CommandCost();
01194
01195
01196 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01197
01198
01199 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01200
01201
01202 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01203
01204
01205
01206 TrainList original_src;
01207 TrainList original_dst;
01208
01209 MakeTrainBackup(original_src, src_head);
01210 MakeTrainBackup(original_dst, dst_head);
01211
01212
01213
01214
01215 Train *original_src_head = src_head;
01216 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01217
01218
01219 bool original_src_head_front_engine = original_src_head != NULL && original_src_head->IsFrontEngine();
01220 bool original_dst_head_front_engine = original_dst_head != NULL && original_dst_head->IsFrontEngine();
01221
01222
01223 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01224
01225 if ((flags & DC_AUTOREPLACE) == 0) {
01226
01227
01228
01229 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
01230 if (ret.Failed()) {
01231
01232 RestoreTrainBackup(original_src);
01233 RestoreTrainBackup(original_dst);
01234 return ret;
01235 }
01236 }
01237
01238
01239 if (flags & DC_EXEC) {
01240
01241 if (original_src_head_front_engine) GroupStatistics::CountVehicle(original_src_head, -1);
01242 if (original_dst_head_front_engine) GroupStatistics::CountVehicle(original_dst_head, -1);
01243
01244
01245 NormaliseSubtypes(src_head);
01246 NormaliseSubtypes(dst_head);
01247
01248
01249
01250
01251
01252
01253
01254
01255
01256
01257
01258
01259
01260
01261
01262
01263
01264
01265
01266
01267
01268 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01269
01270 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01271 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01272 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01273 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01274 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01275 SetWindowDirty(WC_COMPANY, _current_company);
01276
01277
01278
01279 DeleteVehicleOrders(src);
01280 RemoveVehicleFromGroup(src);
01281 src->unitnumber = 0;
01282 }
01283
01284
01285
01286 if (original_src_head != src && dst_head == src) {
01287 SetTrainGroupID(src, DEFAULT_GROUP);
01288 SetWindowDirty(WC_COMPANY, _current_company);
01289 }
01290
01291
01292 if (src_head != NULL && src_head->IsFrontEngine()) GroupStatistics::CountVehicle(src_head, 1);
01293 if (dst_head != NULL && dst_head->IsFrontEngine()) GroupStatistics::CountVehicle(dst_head, 1);
01294
01295
01296 NormaliseTrainHead(src_head);
01297 NormaliseTrainHead(dst_head);
01298
01299 if ((flags & DC_NO_CARGO_CAP_CHECK) == 0) {
01300 CheckCargoCapacity(src_head);
01301 CheckCargoCapacity(dst_head);
01302 }
01303
01304
01305 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01306 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01307 } else {
01308
01309 RestoreTrainBackup(original_src);
01310 RestoreTrainBackup(original_dst);
01311 }
01312
01313 return CommandCost();
01314 }
01315
01327 CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint32 user)
01328 {
01329
01330 Window *w = NULL;
01331
01332
01333 bool sell_chain = HasBit(data, 0);
01334
01335 Train *v = Train::From(t)->GetFirstEnginePart();
01336 Train *first = v->First();
01337
01338 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01339
01340
01341
01342 TrainList original;
01343 MakeTrainBackup(original, first);
01344
01345
01346 Train *new_head = first;
01347 Train *sell_head = NULL;
01348
01349
01350 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01351
01352
01353 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
01354 if (ret.Failed()) {
01355
01356 RestoreTrainBackup(original);
01357 return ret;
01358 }
01359
01360 CommandCost cost(EXPENSES_NEW_VEHICLES);
01361 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01362
01363 if (first->orders.list == NULL && !OrderList::CanAllocateItem()) {
01364 return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
01365 }
01366
01367
01368 if (flags & DC_EXEC) {
01369
01370 NormaliseSubtypes(new_head);
01371
01372 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01373
01374
01375 new_head->orders.list = first->orders.list;
01376 new_head->AddToShared(first);
01377 DeleteVehicleOrders(first);
01378
01379
01380 new_head->CopyVehicleConfigAndStatistics(first);
01381 GroupStatistics::CountVehicle(new_head, 1);
01382
01383
01384 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01385 } else if (v->IsPrimaryVehicle() && data & (MAKE_ORDER_BACKUP_FLAG >> 20)) {
01386 OrderBackup::Backup(v, user);
01387 }
01388
01389
01390 NormaliseTrainHead(new_head);
01391
01392
01393 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01394 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01395
01396
01397 delete sell_head;
01398 } else {
01399
01400 RestoreTrainBackup(original);
01401 }
01402
01403 return cost;
01404 }
01405
01406 void Train::UpdateDeltaXY(Direction direction)
01407 {
01408
01409 this->x_offs = -1;
01410 this->y_offs = -1;
01411 this->x_extent = 3;
01412 this->y_extent = 3;
01413 this->z_extent = 6;
01414 this->x_bb_offs = 0;
01415 this->y_bb_offs = 0;
01416
01417 if (!IsDiagonalDirection(direction)) {
01418 static const int _sign_table[] =
01419 {
01420
01421 -1, -1,
01422 -1, 1,
01423 1, 1,
01424 1, -1,
01425 };
01426
01427 int half_shorten = (VEHICLE_LENGTH - this->gcache.cached_veh_length) / 2;
01428
01429
01430 this->x_offs -= half_shorten * _sign_table[direction];
01431 this->y_offs -= half_shorten * _sign_table[direction + 1];
01432 this->x_extent += this->x_bb_offs = half_shorten * _sign_table[direction];
01433 this->y_extent += this->y_bb_offs = half_shorten * _sign_table[direction + 1];
01434 } else {
01435 switch (direction) {
01436
01437
01438 case DIR_NE:
01439 this->x_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01440 this->x_extent = this->gcache.cached_veh_length - 1;
01441 this->x_bb_offs = -1;
01442 break;
01443
01444 case DIR_NW:
01445 this->y_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01446 this->y_extent = this->gcache.cached_veh_length - 1;
01447 this->y_bb_offs = -1;
01448 break;
01449
01450
01451
01452 case DIR_SW:
01453 this->x_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01454 this->x_extent = VEHICLE_LENGTH - 1;
01455 this->x_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01456 break;
01457
01458 case DIR_SE:
01459 this->y_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01460 this->y_extent = VEHICLE_LENGTH - 1;
01461 this->y_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01462 break;
01463
01464 default:
01465 NOT_REACHED();
01466 }
01467 }
01468 }
01469
01474 static void MarkTrainAsStuck(Train *v)
01475 {
01476 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01477
01478 SetBit(v->flags, VRF_TRAIN_STUCK);
01479
01480 v->wait_counter = 0;
01481
01482
01483 v->cur_speed = 0;
01484 v->subspeed = 0;
01485 v->SetLastSpeed();
01486
01487 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01488 }
01489 }
01490
01498 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01499 {
01500 uint16 flag1 = *swap_flag1;
01501 uint16 flag2 = *swap_flag2;
01502
01503
01504 ClrBit(*swap_flag1, GVF_GOINGUP_BIT);
01505 ClrBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01506 ClrBit(*swap_flag2, GVF_GOINGUP_BIT);
01507 ClrBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01508
01509
01510 if (HasBit(flag1, GVF_GOINGUP_BIT)) {
01511 SetBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01512 } else if (HasBit(flag1, GVF_GOINGDOWN_BIT)) {
01513 SetBit(*swap_flag2, GVF_GOINGUP_BIT);
01514 }
01515 if (HasBit(flag2, GVF_GOINGUP_BIT)) {
01516 SetBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01517 } else if (HasBit(flag2, GVF_GOINGDOWN_BIT)) {
01518 SetBit(*swap_flag1, GVF_GOINGUP_BIT);
01519 }
01520 }
01521
01526 static void UpdateStatusAfterSwap(Train *v)
01527 {
01528
01529 if (v->track != TRACK_BIT_DEPOT) v->direction = ReverseDir(v->direction);
01530
01531
01532 if (v->track != TRACK_BIT_WORMHOLE) {
01533 VehicleEnterTile(v, v->tile, v->x_pos, v->y_pos);
01534 } else {
01535
01536
01537
01538
01539 TileIndex vt = TileVirtXY(v->x_pos, v->y_pos);
01540 if (IsTileType(vt, MP_TUNNELBRIDGE)) {
01541 VehicleEnterTile(v, vt, v->x_pos, v->y_pos);
01542 if (v->track != TRACK_BIT_WORMHOLE && IsBridgeTile(v->tile)) {
01543
01544
01545
01546 VehicleUpdatePosition(v);
01547 v->UpdateInclination(true, true);
01548 return;
01549 }
01550 }
01551 }
01552
01553 VehicleUpdatePosition(v);
01554 v->UpdateViewport(true, true);
01555 }
01556
01563 void ReverseTrainSwapVeh(Train *v, int l, int r)
01564 {
01565 Train *a, *b;
01566
01567
01568 for (a = v; l != 0; l--) a = a->Next();
01569 for (b = v; r != 0; r--) b = b->Next();
01570
01571 if (a != b) {
01572
01573 {
01574 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus & VS_HIDDEN);
01575 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus & VS_HIDDEN);
01576 a->vehstatus = tmp;
01577 }
01578
01579 Swap(a->track, b->track);
01580 Swap(a->direction, b->direction);
01581 Swap(a->x_pos, b->x_pos);
01582 Swap(a->y_pos, b->y_pos);
01583 Swap(a->tile, b->tile);
01584 Swap(a->z_pos, b->z_pos);
01585
01586 SwapTrainFlags(&a->gv_flags, &b->gv_flags);
01587
01588 UpdateStatusAfterSwap(a);
01589 UpdateStatusAfterSwap(b);
01590 } else {
01591
01592
01593
01594 SwapTrainFlags(&a->gv_flags, &a->gv_flags);
01595 UpdateStatusAfterSwap(a);
01596 }
01597
01598
01599 v->RailtypeChanged();
01600 }
01601
01602
01608 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01609 {
01610 return (v->type == VEH_TRAIN) ? v : NULL;
01611 }
01612
01613
01620 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01621 {
01622 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01623
01624 Train *t = Train::From(v);
01625 if (!t->IsFrontEngine()) return NULL;
01626
01627 TileIndex tile = *(TileIndex *)data;
01628
01629 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01630
01631 return t;
01632 }
01633
01634
01641 static bool TrainApproachingCrossing(TileIndex tile)
01642 {
01643 assert(IsLevelCrossingTile(tile));
01644
01645 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01646 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01647
01648 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01649
01650 dir = ReverseDiagDir(dir);
01651 tile_from = tile + TileOffsByDiagDir(dir);
01652
01653 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01654 }
01655
01656
01663 void UpdateLevelCrossing(TileIndex tile, bool sound)
01664 {
01665 assert(IsLevelCrossingTile(tile));
01666
01667
01668 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01669
01670 if (new_state != IsCrossingBarred(tile)) {
01671 if (new_state && sound) {
01672 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01673 }
01674 SetCrossingBarred(tile, new_state);
01675 MarkTileDirtyByTile(tile);
01676 }
01677 }
01678
01679
01685 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01686 {
01687 if (!IsCrossingBarred(tile)) {
01688 BarCrossing(tile);
01689 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01690 MarkTileDirtyByTile(tile);
01691 }
01692 }
01693
01694
01700 static void AdvanceWagonsBeforeSwap(Train *v)
01701 {
01702 Train *base = v;
01703 Train *first = base;
01704 Train *last = v->Last();
01705 uint length = CountVehiclesInChain(v);
01706
01707 while (length > 2) {
01708 last = last->Previous();
01709 first = first->Next();
01710
01711 int differential = base->CalcNextVehicleOffset() - last->CalcNextVehicleOffset();
01712
01713
01714
01715 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01716
01717 base = first;
01718 length -= 2;
01719 }
01720 }
01721
01722
01728 static void AdvanceWagonsAfterSwap(Train *v)
01729 {
01730
01731 Train *dep = v;
01732 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01733 dep = dep->Next();
01734 }
01735
01736 Train *leave = dep->Next();
01737
01738 if (leave != NULL) {
01739
01740 int d = TicksToLeaveDepot(dep);
01741
01742 if (d <= 0) {
01743 leave->vehstatus &= ~VS_HIDDEN;
01744 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01745 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01746 }
01747 } else {
01748 dep = NULL;
01749 }
01750
01751 Train *base = v;
01752 Train *first = base;
01753 Train *last = v->Last();
01754 uint length = CountVehiclesInChain(v);
01755
01756
01757
01758 bool nomove = (dep == NULL);
01759
01760 while (length > 2) {
01761
01762
01763 if (base == dep) break;
01764
01765
01766 if (last == dep) nomove = true;
01767
01768 last = last->Previous();
01769 first = first->Next();
01770
01771 int differential = last->CalcNextVehicleOffset() - base->CalcNextVehicleOffset();
01772
01773
01774 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01775
01776 base = first;
01777 length -= 2;
01778 }
01779 }
01780
01785 void ReverseTrainDirection(Train *v)
01786 {
01787 if (IsRailDepotTile(v->tile)) {
01788 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01789 }
01790
01791
01792 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01793
01794
01795 TileIndex crossing = TrainApproachingCrossingTile(v);
01796
01797
01798 int r = CountVehiclesInChain(v) - 1;
01799
01800 AdvanceWagonsBeforeSwap(v);
01801
01802
01803 int l = 0;
01804 do {
01805 ReverseTrainSwapVeh(v, l++, r--);
01806 } while (l <= r);
01807
01808 AdvanceWagonsAfterSwap(v);
01809
01810 if (IsRailDepotTile(v->tile)) {
01811 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01812 }
01813
01814 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01815
01816 ClrBit(v->flags, VRF_REVERSING);
01817
01818
01819 v->ConsistChanged(true);
01820
01821
01822 for (Train *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01823
01824
01825 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01826
01827
01828 crossing = TrainApproachingCrossingTile(v);
01829 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01830
01831
01832 if (v->track == TRACK_BIT_DEPOT) {
01833
01834 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01835 ClrBit(v->flags, VRF_TRAIN_STUCK);
01836 return;
01837 }
01838
01839
01840
01841 DiagDirection dir = TrainExitDir(v->direction, v->track);
01842 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01843
01844 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01845
01846
01847 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01848 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01849 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01850
01851 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01852 if (TryPathReserve(v, false, first_tile_okay)) {
01853
01854 CheckNextTrainTile(v);
01855 } else if (v->current_order.GetType() != OT_LOADING) {
01856
01857 MarkTrainAsStuck(v);
01858 }
01859 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01860
01861 ClrBit(v->flags, VRF_TRAIN_STUCK);
01862 v->wait_counter = 0;
01863 }
01864 }
01865
01875 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01876 {
01877 Train *v = Train::GetIfValid(p1);
01878 if (v == NULL) return CMD_ERROR;
01879
01880 CommandCost ret = CheckOwnership(v->owner);
01881 if (ret.Failed()) return ret;
01882
01883 if (p2 != 0) {
01884
01885
01886 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01887 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01888 }
01889 if (!HasBit(EngInfo(v->engine_type)->misc_flags, EF_RAIL_FLIPS)) return CMD_ERROR;
01890
01891 Train *front = v->First();
01892
01893 if (!front->IsStoppedInDepot()) {
01894 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01895 }
01896
01897 if (flags & DC_EXEC) {
01898 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01899
01900 front->ConsistChanged(false);
01901 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
01902 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
01903 SetWindowDirty(WC_VEHICLE_VIEW, front->index);
01904 SetWindowClassesDirty(WC_TRAINS_LIST);
01905 }
01906 } else {
01907
01908 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01909
01910 if (flags & DC_EXEC) {
01911
01912 if (v->current_order.IsType(OT_LOADING)) {
01913 const Vehicle *last = v;
01914 while (last->Next() != NULL) last = last->Next();
01915
01916
01917 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01918 v->LeaveStation();
01919 }
01920 }
01921
01922
01923 v->force_proceed = TFP_NONE;
01924 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01925
01926 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01927 ToggleBit(v->flags, VRF_REVERSING);
01928 } else {
01929 v->cur_speed = 0;
01930 v->SetLastSpeed();
01931 HideFillingPercent(&v->fill_percent_te_id);
01932 ReverseTrainDirection(v);
01933 }
01934 }
01935 }
01936 return CommandCost();
01937 }
01938
01948 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01949 {
01950 Train *t = Train::GetIfValid(p1);
01951 if (t == NULL) return CMD_ERROR;
01952
01953 CommandCost ret = CheckOwnership(t->owner);
01954 if (ret.Failed()) return ret;
01955
01956
01957 if (flags & DC_EXEC) {
01958
01959
01960
01961
01962
01963 t->force_proceed = t->force_proceed == TFP_SIGNAL ? TFP_NONE : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? TFP_STUCK : TFP_SIGNAL;
01964 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
01965 }
01966
01967 return CommandCost();
01968 }
01969
01977 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
01978 {
01979 assert(!(v->vehstatus & VS_CRASHED));
01980
01981 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
01982
01983 PBSTileInfo origin = FollowTrainReservation(v);
01984 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
01985
01986 switch (_settings_game.pf.pathfinder_for_trains) {
01987 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
01988 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
01989
01990 default: NOT_REACHED();
01991 }
01992 }
01993
02001 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02002 {
02003 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
02004 if (tfdd.best_length == UINT_MAX) return false;
02005
02006 if (location != NULL) *location = tfdd.tile;
02007 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
02008 if (reverse != NULL) *reverse = tfdd.reverse;
02009
02010 return true;
02011 }
02012
02014 void Train::PlayLeaveStationSound() const
02015 {
02016 static const SoundFx sfx[] = {
02017 SND_04_TRAIN,
02018 SND_0A_TRAIN_HORN,
02019 SND_0A_TRAIN_HORN,
02020 SND_47_MAGLEV_2,
02021 SND_41_MAGLEV
02022 };
02023
02024 if (PlayVehicleSound(this, VSE_START)) return;
02025
02026 EngineID engtype = this->engine_type;
02027 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02028 }
02029
02034 static void CheckNextTrainTile(Train *v)
02035 {
02036
02037 if (_settings_game.pf.path_backoff_interval == 255) return;
02038
02039
02040 if (v->track == TRACK_BIT_DEPOT) return;
02041
02042 switch (v->current_order.GetType()) {
02043
02044 case OT_GOTO_DEPOT:
02045 if (v->tile == v->dest_tile) return;
02046 break;
02047
02048 case OT_GOTO_WAYPOINT:
02049
02050 if (IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
02051 break;
02052
02053 case OT_NOTHING:
02054 case OT_LEAVESTATION:
02055 case OT_LOADING:
02056
02057 if (v->GetNumOrders() > 0) return;
02058 break;
02059
02060 default:
02061 break;
02062 }
02063
02064 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02065
02066 Trackdir td = v->GetVehicleTrackdir();
02067
02068
02069 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02070 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02071 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02072
02073 CFollowTrackRail ft(v);
02074 if (!ft.Follow(v->tile, td)) return;
02075
02076 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02077
02078 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02079 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02080
02081 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02082 if (_settings_game.pf.forbid_90_deg) {
02083 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02084 }
02085 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02086 }
02087 }
02088 }
02089 }
02090
02096 static bool CheckTrainStayInDepot(Train *v)
02097 {
02098
02099 for (const Train *u = v; u != NULL; u = u->Next()) {
02100 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02101 }
02102
02103
02104 if (v->gcache.cached_power == 0) {
02105 v->vehstatus |= VS_STOPPED;
02106 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02107 return true;
02108 }
02109
02110 SigSegState seg_state;
02111
02112 if (v->force_proceed == TFP_NONE) {
02113
02114 if (++v->wait_counter < 37) {
02115 SetWindowClassesDirty(WC_TRAINS_LIST);
02116 return true;
02117 }
02118
02119 v->wait_counter = 0;
02120
02121 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02122 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02123
02124 SetWindowClassesDirty(WC_TRAINS_LIST);
02125 return true;
02126 }
02127 } else {
02128 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02129 }
02130
02131
02132 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02133
02134 if (HasDepotReservation(v->tile)) return true;
02135 SetDepotReservation(v->tile, true);
02136 VehicleEnterDepot(v);
02137 return true;
02138 }
02139
02140
02141 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == TFP_NONE) {
02142
02143 SetWindowClassesDirty(WC_TRAINS_LIST);
02144 MarkTrainAsStuck(v);
02145 return true;
02146 }
02147
02148 SetDepotReservation(v->tile, true);
02149 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02150
02151 VehicleServiceInDepot(v);
02152 SetWindowClassesDirty(WC_TRAINS_LIST);
02153 v->PlayLeaveStationSound();
02154
02155 v->track = TRACK_BIT_X;
02156 if (v->direction & 2) v->track = TRACK_BIT_Y;
02157
02158 v->vehstatus &= ~VS_HIDDEN;
02159 v->cur_speed = 0;
02160
02161 v->UpdateViewport(true, true);
02162 VehicleUpdatePosition(v);
02163 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02164 v->UpdateAcceleration();
02165 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02166
02167 return false;
02168 }
02169
02176 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02177 {
02178 DiagDirection dir = TrackdirToExitdir(track_dir);
02179
02180 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02181
02182 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02183 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02184
02185 if (TunnelBridgeIsFree(tile, end, v).Succeeded()) {
02186
02187 SetTunnelBridgeReservation(tile, false);
02188 SetTunnelBridgeReservation(end, false);
02189
02190 if (_settings_client.gui.show_track_reservation) {
02191 MarkTileDirtyByTile(tile);
02192 MarkTileDirtyByTile(end);
02193 }
02194 }
02195 }
02196 } else if (IsRailStationTile(tile)) {
02197 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02198
02199
02200 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02201 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02202 }
02203 } else {
02204
02205 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02206 }
02207 }
02208
02215 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02216 {
02217 assert(v->IsFrontEngine());
02218
02219 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02220 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02221 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02222 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02223
02224
02225 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02226
02227 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02228 while (ft.Follow(tile, td)) {
02229 tile = ft.m_new_tile;
02230 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02231 td = RemoveFirstTrackdir(&bits);
02232 assert(bits == TRACKDIR_BIT_NONE);
02233
02234 if (!IsValidTrackdir(td)) break;
02235
02236 if (IsTileType(tile, MP_RAILWAY)) {
02237 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02238
02239 UnreserveRailTrack(tile, TrackdirToTrack(td));
02240 break;
02241 }
02242 if (HasPbsSignalOnTrackdir(tile, td)) {
02243 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02244
02245 break;
02246 } else {
02247
02248 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02249 MarkTileDirtyByTile(tile);
02250 }
02251 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02252 break;
02253 }
02254 }
02255
02256
02257 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);
02258
02259 free_tile = true;
02260 }
02261 }
02262
02263 static const byte _initial_tile_subcoord[6][4][3] = {
02264 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02265 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02266 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02267 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02268 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02269 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02270 };
02271
02284 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool &path_found, bool do_track_reservation, PBSTileInfo *dest)
02285 {
02286 switch (_settings_game.pf.pathfinder_for_trains) {
02287 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02288 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02289
02290 default: NOT_REACHED();
02291 }
02292 }
02293
02299 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02300 {
02301 PBSTileInfo origin = FollowTrainReservation(v);
02302
02303 CFollowTrackRail ft(v);
02304
02305 TileIndex tile = origin.tile;
02306 Trackdir cur_td = origin.trackdir;
02307 while (ft.Follow(tile, cur_td)) {
02308 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02309
02310 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02311 }
02312
02313 if (_settings_game.pf.forbid_90_deg) {
02314 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02315 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02316 }
02317
02318
02319 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02320 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02321
02322
02323
02324
02325
02326
02327 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02328
02329
02330
02331 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02332
02333
02334 if (new_tracks != NULL) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02335 if (enterdir != NULL) *enterdir = ft.m_exitdir;
02336 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02337 }
02338
02339 tile = ft.m_new_tile;
02340 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02341
02342 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02343 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02344 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02345
02346 return PBSTileInfo(tile, cur_td, true);
02347 }
02348
02349 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02350 }
02351
02352 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02353
02354 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02355 }
02356
02357
02358 tile = origin.tile;
02359 cur_td = origin.trackdir;
02360 TileIndex stopped = ft.m_old_tile;
02361 Trackdir stopped_td = ft.m_old_td;
02362 while (tile != stopped || cur_td != stopped_td) {
02363 if (!ft.Follow(tile, cur_td)) break;
02364
02365 if (_settings_game.pf.forbid_90_deg) {
02366 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02367 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02368 }
02369 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02370
02371 tile = ft.m_new_tile;
02372 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02373
02374 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02375 }
02376
02377
02378 return PBSTileInfo();
02379 }
02380
02391 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02392 {
02393 switch (_settings_game.pf.pathfinder_for_trains) {
02394 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02395 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02396
02397 default: NOT_REACHED();
02398 }
02399 }
02400
02402 class VehicleOrderSaver {
02403 private:
02404 Train *v;
02405 Order old_order;
02406 TileIndex old_dest_tile;
02407 StationID old_last_station_visited;
02408 VehicleOrderID index;
02409 bool suppress_implicit_orders;
02410
02411 public:
02412 VehicleOrderSaver(Train *_v) :
02413 v(_v),
02414 old_order(_v->current_order),
02415 old_dest_tile(_v->dest_tile),
02416 old_last_station_visited(_v->last_station_visited),
02417 index(_v->cur_real_order_index),
02418 suppress_implicit_orders(HasBit(_v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS))
02419 {
02420 }
02421
02422 ~VehicleOrderSaver()
02423 {
02424 this->v->current_order = this->old_order;
02425 this->v->dest_tile = this->old_dest_tile;
02426 this->v->last_station_visited = this->old_last_station_visited;
02427 SB(this->v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS, 1, suppress_implicit_orders ? 1: 0);
02428 }
02429
02435 bool SwitchToNextOrder(bool skip_first)
02436 {
02437 if (this->v->GetNumOrders() == 0) return false;
02438
02439 if (skip_first) ++this->index;
02440
02441 int conditional_depth = 0;
02442
02443 do {
02444
02445 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02446
02447 Order *order = this->v->GetOrder(this->index);
02448 assert(order != NULL);
02449
02450 switch (order->GetType()) {
02451 case OT_GOTO_DEPOT:
02452
02453 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02454 case OT_GOTO_STATION:
02455 case OT_GOTO_WAYPOINT:
02456 this->v->current_order = *order;
02457 return UpdateOrderDest(this->v, order, 0, true);
02458 case OT_CONDITIONAL: {
02459 if (conditional_depth > this->v->GetNumOrders()) return false;
02460 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02461 if (next != INVALID_VEH_ORDER_ID) {
02462 conditional_depth++;
02463 this->index = next;
02464
02465 continue;
02466 }
02467 break;
02468 }
02469 default:
02470 break;
02471 }
02472
02473
02474 ++this->index;
02475 } while (this->index != this->v->cur_real_order_index);
02476
02477 return false;
02478 }
02479 };
02480
02481
02482 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02483 {
02484 Track best_track = INVALID_TRACK;
02485 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02486 bool changed_signal = false;
02487
02488 assert((tracks & ~TRACK_BIT_MASK) == 0);
02489
02490 if (got_reservation != NULL) *got_reservation = false;
02491
02492
02493 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02494
02495 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02496
02497
02498 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02499 Track track = FindFirstTrack(tracks);
02500
02501 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02502 do_track_reservation = true;
02503 changed_signal = true;
02504 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02505 } else if (!do_track_reservation) {
02506 return track;
02507 }
02508 best_track = track;
02509 }
02510
02511 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02512 DiagDirection dest_enterdir = enterdir;
02513 if (do_track_reservation) {
02514 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02515 if (res_dest.tile == INVALID_TILE) {
02516
02517 if (mark_stuck) MarkTrainAsStuck(v);
02518 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02519 return FindFirstTrack(tracks);
02520 }
02521 if (res_dest.okay) {
02522
02523 if (got_reservation != NULL) *got_reservation = true;
02524 if (changed_signal) MarkTileDirtyByTile(tile);
02525 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02526 return best_track;
02527 }
02528
02529
02530
02531
02532 CheckIfTrainNeedsService(v);
02533 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02534 }
02535
02536
02537 VehicleOrderSaver orders(v);
02538
02539
02540
02541
02542
02543
02544
02545 if (v->current_order.IsType(OT_LEAVESTATION)) {
02546 orders.SwitchToNextOrder(false);
02547 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02548 v->current_order.IsType(OT_GOTO_STATION) ?
02549 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02550 v->tile == v->dest_tile))) {
02551 orders.SwitchToNextOrder(true);
02552 }
02553
02554 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02555
02556 bool path_found = true;
02557 TileIndex new_tile = res_dest.tile;
02558
02559 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, path_found, do_track_reservation, &res_dest);
02560 if (new_tile == tile) best_track = next_track;
02561 v->HandlePathfindingResult(path_found);
02562 }
02563
02564
02565 if (!do_track_reservation) return best_track;
02566
02567
02568 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02569 if (mark_stuck) MarkTrainAsStuck(v);
02570 FreeTrainTrackReservation(v);
02571 return best_track;
02572 }
02573
02574
02575 if (res_dest.tile == INVALID_TILE) {
02576
02577 PBSTileInfo origin = FollowTrainReservation(v);
02578 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02579 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02580 best_track = FindFirstTrack(res);
02581 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02582 if (got_reservation != NULL) *got_reservation = true;
02583 if (changed_signal) MarkTileDirtyByTile(tile);
02584 } else {
02585 FreeTrainTrackReservation(v);
02586 if (mark_stuck) MarkTrainAsStuck(v);
02587 }
02588 return best_track;
02589 }
02590
02591 if (got_reservation != NULL) *got_reservation = true;
02592
02593
02594 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02595
02596 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02597 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02598 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02599 if (_settings_game.pf.forbid_90_deg) {
02600 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02601 }
02602
02603
02604 if (orders.SwitchToNextOrder(true)) {
02605 PBSTileInfo cur_dest;
02606 bool path_found;
02607 DoTrainPathfind(v, next_tile, exitdir, reachable, path_found, true, &cur_dest);
02608 if (cur_dest.tile != INVALID_TILE) {
02609 res_dest = cur_dest;
02610 if (res_dest.okay) continue;
02611
02612 FreeTrainTrackReservation(v);
02613 if (mark_stuck) MarkTrainAsStuck(v);
02614 if (got_reservation != NULL) *got_reservation = false;
02615 changed_signal = false;
02616 break;
02617 }
02618 }
02619
02620 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02621 FreeTrainTrackReservation(v);
02622 if (mark_stuck) MarkTrainAsStuck(v);
02623 if (got_reservation != NULL) *got_reservation = false;
02624 changed_signal = false;
02625 }
02626 break;
02627 }
02628
02629 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02630
02631 if (changed_signal) MarkTileDirtyByTile(tile);
02632
02633 return best_track;
02634 }
02635
02644 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02645 {
02646 assert(v->IsFrontEngine());
02647
02648
02649
02650
02651 if (v->track == TRACK_BIT_DEPOT) {
02652 if (HasDepotReservation(v->tile)) {
02653 if (mark_as_stuck) MarkTrainAsStuck(v);
02654 return false;
02655 } else {
02656
02657 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02658 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02659 }
02660 }
02661
02662 Vehicle *other_train = NULL;
02663 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02664
02665
02666
02667
02668
02669 if (other_train != NULL && other_train->index != v->index) {
02670 if (mark_as_stuck) MarkTrainAsStuck(v);
02671 return false;
02672 }
02673
02674 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02675
02676 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02677 ClrBit(v->flags, VRF_TRAIN_STUCK);
02678 return true;
02679 }
02680
02681
02682 if (v->track == TRACK_BIT_DEPOT) {
02683 SetDepotReservation(v->tile, true);
02684 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02685 }
02686
02687 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02688 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02689 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02690
02691 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02692
02693 bool res_made = false;
02694 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02695
02696 if (!res_made) {
02697
02698 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02699 return false;
02700 }
02701
02702 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02703 v->wait_counter = 0;
02704 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02705 }
02706 ClrBit(v->flags, VRF_TRAIN_STUCK);
02707 return true;
02708 }
02709
02710
02711 static bool CheckReverseTrain(const Train *v)
02712 {
02713 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02714 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02715 !(v->direction & 1)) {
02716 return false;
02717 }
02718
02719 assert(v->track != TRACK_BIT_NONE);
02720
02721 switch (_settings_game.pf.pathfinder_for_trains) {
02722 case VPF_NPF: return NPFTrainCheckReverse(v);
02723 case VPF_YAPF: return YapfTrainCheckReverse(v);
02724
02725 default: NOT_REACHED();
02726 }
02727 }
02728
02734 TileIndex Train::GetOrderStationLocation(StationID station)
02735 {
02736 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02737
02738 const Station *st = Station::Get(station);
02739 if (!(st->facilities & FACIL_TRAIN)) {
02740
02741 this->IncrementRealOrderIndex();
02742 return 0;
02743 }
02744
02745 return st->xy;
02746 }
02747
02749 void Train::MarkDirty()
02750 {
02751 Train *v = this;
02752 do {
02753 v->UpdateViewport(false, false);
02754 } while ((v = v->Next()) != NULL);
02755
02756
02757 this->CargoChanged();
02758 this->UpdateAcceleration();
02759 }
02760
02768 int Train::UpdateSpeed()
02769 {
02770 switch (_settings_game.vehicle.train_acceleration_model) {
02771 default: NOT_REACHED();
02772 case AM_ORIGINAL:
02773 return this->DoUpdateSpeed(this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2), 0, this->gcache.cached_max_track_speed);
02774
02775 case AM_REALISTIC:
02776 return this->DoUpdateSpeed(this->GetAcceleration(), this->GetAccelerationStatus() == AS_BRAKE ? 0 : 2, this->GetCurrentMaxSpeed());
02777 }
02778 }
02779
02785 static void TrainEnterStation(Train *v, StationID station)
02786 {
02787 v->last_station_visited = station;
02788
02789
02790 Station *st = Station::Get(station);
02791 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02792 st->had_vehicle_of_type |= HVOT_TRAIN;
02793 SetDParam(0, st->index);
02794 AddVehicleNewsItem(
02795 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02796 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
02797 v->index,
02798 st->index
02799 );
02800 AI::NewEvent(v->owner, new ScriptEventStationFirstVehicle(st->index, v->index));
02801 Game::NewEvent(new ScriptEventStationFirstVehicle(st->index, v->index));
02802 }
02803
02804 v->force_proceed = TFP_NONE;
02805 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02806
02807 v->BeginLoading();
02808
02809 TriggerStationAnimation(st, v->tile, SAT_TRAIN_ARRIVES);
02810 }
02811
02812
02813 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
02814 {
02815 return IsTileOwner(tile, v->owner) &&
02816 (!v->IsFrontEngine() || HasBit(v->compatible_railtypes, GetRailType(tile)));
02817 }
02818
02820 struct RailtypeSlowdownParams {
02821 byte small_turn;
02822 byte large_turn;
02823 byte z_up;
02824 byte z_down;
02825 };
02826
02828 static const RailtypeSlowdownParams _railtype_slowdown[] = {
02829
02830 {256 / 4, 256 / 2, 256 / 4, 2},
02831 {256 / 4, 256 / 2, 256 / 4, 2},
02832 {256 / 4, 256 / 2, 256 / 4, 2},
02833 {0, 256 / 2, 256 / 4, 2},
02834 };
02835
02841 static inline void AffectSpeedByZChange(Train *v, int old_z)
02842 {
02843 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
02844
02845 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
02846
02847 if (old_z < v->z_pos) {
02848 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
02849 } else {
02850 uint16 spd = v->cur_speed + rsp->z_down;
02851 if (spd <= v->gcache.cached_max_track_speed) v->cur_speed = spd;
02852 }
02853 }
02854
02855 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
02856 {
02857 if (IsTileType(tile, MP_RAILWAY) &&
02858 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
02859 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
02860 Trackdir trackdir = FindFirstTrackdir(tracks);
02861 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
02862
02863 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
02864 }
02865 }
02866 return false;
02867 }
02868
02870 void Train::ReserveTrackUnderConsist() const
02871 {
02872 for (const Train *u = this; u != NULL; u = u->Next()) {
02873 switch (u->track) {
02874 case TRACK_BIT_WORMHOLE:
02875 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
02876 break;
02877 case TRACK_BIT_DEPOT:
02878 break;
02879 default:
02880 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
02881 break;
02882 }
02883 }
02884 }
02885
02892 uint Train::Crash(bool flooded)
02893 {
02894 uint pass = 0;
02895 if (this->IsFrontEngine()) {
02896 pass += 2;
02897
02898
02899
02900 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
02901 for (const Train *v = this; v != NULL; v = v->Next()) {
02902 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
02903 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
02904
02905
02906 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
02907 }
02908 }
02909
02910
02911
02912 TileIndex crossing = TrainApproachingCrossingTile(this);
02913 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
02914
02915
02916 HideFillingPercent(&this->fill_percent_te_id);
02917 }
02918
02919 pass += this->GroundVehicleBase::Crash(flooded);
02920
02921 this->crash_anim_pos = flooded ? 4000 : 1;
02922 return pass;
02923 }
02924
02931 static uint TrainCrashed(Train *v)
02932 {
02933 uint num = 0;
02934
02935
02936 if (!(v->vehstatus & VS_CRASHED)) {
02937 num = v->Crash();
02938 AI::NewEvent(v->owner, new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02939 Game::NewEvent(new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02940 }
02941
02942
02943
02944 v->ReserveTrackUnderConsist();
02945
02946 return num;
02947 }
02948
02950 struct TrainCollideChecker {
02951 Train *v;
02952 uint num;
02953 };
02954
02961 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
02962 {
02963 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
02964
02965
02966 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
02967
02968
02969 if (v->owner != tcc->v->owner) return NULL;
02970
02971
02972 Train *coll = Train::From(v)->First();
02973
02974
02975 if (coll == tcc->v) return NULL;
02976
02977 int x_diff = v->x_pos - tcc->v->x_pos;
02978 int y_diff = v->y_pos - tcc->v->y_pos;
02979
02980
02981
02982
02983
02984 uint hash = (y_diff + 7) | (x_diff + 7);
02985 if (hash & ~15) return NULL;
02986
02987
02988 int min_diff = (Train::From(v)->gcache.cached_veh_length + 1) / 2 + (tcc->v->gcache.cached_veh_length + 1) / 2 - 1;
02989 if (x_diff * x_diff + y_diff * y_diff > min_diff * min_diff) return NULL;
02990
02991
02992 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
02993
02994
02995 tcc->num += TrainCrashed(tcc->v);
02996 tcc->num += TrainCrashed(coll);
02997
02998 return NULL;
02999 }
03000
03008 static bool CheckTrainCollision(Train *v)
03009 {
03010
03011 if (v->track == TRACK_BIT_DEPOT) return false;
03012
03013 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03014
03015 TrainCollideChecker tcc;
03016 tcc.v = v;
03017 tcc.num = 0;
03018
03019
03020 if (v->track == TRACK_BIT_WORMHOLE) {
03021 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03022 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03023 } else {
03024 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03025 }
03026
03027
03028 if (tcc.num == 0) return false;
03029
03030 SetDParam(0, tcc.num);
03031 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
03032 NS_ACCIDENT,
03033 v->index
03034 );
03035
03036 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03037 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03038 return true;
03039 }
03040
03041 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03042 {
03043 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03044
03045 Train *t = Train::From(v);
03046 DiagDirection exitdir = *(DiagDirection *)data;
03047
03048
03049 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03050
03051 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03052
03053 return t;
03054 }
03055
03063 bool TrainController(Train *v, Vehicle *nomove, bool reverse)
03064 {
03065 Train *first = v->First();
03066 Train *prev;
03067 bool direction_changed = false;
03068
03069
03070 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03071 DiagDirection enterdir = DIAGDIR_BEGIN;
03072 bool update_signals_crossing = false;
03073
03074 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03075 if (v->track != TRACK_BIT_WORMHOLE) {
03076
03077 if (gp.old_tile == gp.new_tile) {
03078
03079 if (v->track == TRACK_BIT_DEPOT) {
03080
03081 gp.x = v->x_pos;
03082 gp.y = v->y_pos;
03083 } else {
03084
03085
03086
03087 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v, reverse)) return false;
03088
03089 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03090 if (HasBit(r, VETS_CANNOT_ENTER)) {
03091 goto invalid_rail;
03092 }
03093 if (HasBit(r, VETS_ENTERED_STATION)) {
03094
03095 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03096 }
03097 }
03098 } else {
03099
03100
03101
03102 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03103 assert(IsValidDiagDirection(enterdir));
03104
03105
03106
03107 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03108 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03109
03110 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03111 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03112
03113 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03114 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03115
03116
03117 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03118 }
03119
03120 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03121
03122
03123
03124 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03125
03126 TrackBits chosen_track;
03127 if (prev == NULL) {
03128
03129
03130 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03131 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03132
03133 if (v->force_proceed != TFP_NONE && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03134
03135
03136
03137
03138 Trackdir dir = FindFirstTrackdir(trackdirbits);
03139 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03140 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03141
03142
03143 v->force_proceed = (v->force_proceed == TFP_SIGNAL) ? TFP_STUCK : TFP_NONE;
03144 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03145 }
03146 }
03147
03148
03149 if ((red_signals & chosen_track) && v->force_proceed == TFP_NONE) {
03150
03151 Trackdir i = FindFirstTrackdir(trackdirbits);
03152
03153
03154 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return false;
03155
03156 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03157 v->cur_speed = 0;
03158 v->subspeed = 0;
03159 v->progress = 255 - 100;
03160 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return false;
03161 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03162 v->cur_speed = 0;
03163 v->subspeed = 0;
03164 v->progress = 255 - 10;
03165 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03166 DiagDirection exitdir = TrackdirToExitdir(i);
03167 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03168
03169 exitdir = ReverseDiagDir(exitdir);
03170
03171
03172 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return false;
03173 }
03174 }
03175
03176
03177
03178
03179
03180 if (!_settings_game.pf.reverse_at_signals && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03181 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03182 v->wait_counter = 0;
03183 return false;
03184 }
03185 goto reverse_train_direction;
03186 } else {
03187 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03188 }
03189 } else {
03190
03191 if (prev->tile == gp.new_tile) {
03192
03193 if (prev->track == TRACK_BIT_WORMHOLE) {
03194
03195
03196 assert(IsTunnel(prev->tile));
03197 chosen_track = bits;
03198 } else {
03199 chosen_track = prev->track;
03200 }
03201 } else {
03202
03203
03204
03205
03206
03207
03208
03209 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03210 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03211 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03212 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03213 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03214 };
03215 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03216 assert(IsValidDiagDirection(exitdir));
03217 chosen_track = _connecting_track[enterdir][exitdir];
03218 }
03219 chosen_track &= bits;
03220 }
03221
03222
03223 assert(
03224 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03225 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03226 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03227
03228
03229 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03230 gp.x = (gp.x & ~0xF) | b[0];
03231 gp.y = (gp.y & ~0xF) | b[1];
03232 Direction chosen_dir = (Direction)b[2];
03233
03234
03235 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03236 if (HasBit(r, VETS_CANNOT_ENTER)) {
03237 goto invalid_rail;
03238 }
03239
03240 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03241 Track track = FindFirstTrack(chosen_track);
03242 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03243 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03244 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03245 MarkTileDirtyByTile(gp.new_tile);
03246 }
03247
03248
03249 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03250
03251 v->tile = gp.new_tile;
03252
03253 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03254 v->First()->RailtypeChanged();
03255 }
03256
03257 v->track = chosen_track;
03258 assert(v->track);
03259 }
03260
03261
03262
03263 update_signals_crossing = true;
03264
03265 if (chosen_dir != v->direction) {
03266 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03267 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03268 DirDiff diff = DirDifference(v->direction, chosen_dir);
03269 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03270 }
03271 direction_changed = true;
03272 v->direction = chosen_dir;
03273 }
03274
03275 if (v->IsFrontEngine()) {
03276 v->wait_counter = 0;
03277
03278
03279 TileIndex crossing = TrainApproachingCrossingTile(v);
03280 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03281
03282
03283 CheckNextTrainTile(v);
03284 }
03285
03286 if (HasBit(r, VETS_ENTERED_STATION)) {
03287
03288 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03289 }
03290 }
03291 } else {
03292
03293
03294
03295 if (!(v->vehstatus & VS_HIDDEN)) {
03296 Train *first = v->First();
03297 first->cur_speed = min(first->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03298 }
03299
03300 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03301
03302 if (v->IsFrontEngine()) {
03303 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03304 CheckNextTrainTile(v);
03305 }
03306
03307
03308 if (gp.old_tile == gp.new_tile) {
03309 gp.old_tile = GetOtherTunnelBridgeEnd(gp.old_tile);
03310 }
03311 } else {
03312 v->x_pos = gp.x;
03313 v->y_pos = gp.y;
03314 VehicleUpdatePosition(v);
03315 if ((v->vehstatus & VS_HIDDEN) == 0) VehicleUpdateViewport(v, true);
03316 continue;
03317 }
03318 }
03319
03320
03321 v->UpdateDeltaXY(v->direction);
03322
03323 v->x_pos = gp.x;
03324 v->y_pos = gp.y;
03325 VehicleUpdatePosition(v);
03326
03327
03328 int old_z = v->UpdateInclination(gp.new_tile != gp.old_tile, false);
03329
03330 if (prev == NULL) {
03331
03332 AffectSpeedByZChange(v, old_z);
03333 }
03334
03335 if (update_signals_crossing) {
03336 if (v->IsFrontEngine()) {
03337 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03338
03339
03340
03341
03342
03343
03344
03345
03346 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03347 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03348 !TryPathReserve(v)) {
03349 MarkTrainAsStuck(v);
03350 }
03351 }
03352 }
03353
03354
03355
03356 if (v->Next() == NULL) {
03357 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03358 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03359 }
03360 }
03361
03362
03363 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03364 }
03365
03366 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03367
03368 return true;
03369
03370 invalid_rail:
03371
03372 if (prev != NULL) error("Disconnecting train");
03373
03374 reverse_train_direction:
03375 if (reverse) {
03376 v->wait_counter = 0;
03377 v->cur_speed = 0;
03378 v->subspeed = 0;
03379 ReverseTrainDirection(v);
03380 }
03381
03382 return false;
03383 }
03384
03391 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03392 {
03393 TrackBits *trackbits = (TrackBits *)data;
03394
03395 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03396 TrackBits train_tbits = Train::From(v)->track;
03397 if (train_tbits == TRACK_BIT_WORMHOLE) {
03398
03399 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03400 } else if (train_tbits != TRACK_BIT_DEPOT) {
03401 *trackbits |= train_tbits;
03402 }
03403 }
03404
03405 return NULL;
03406 }
03407
03415 static void DeleteLastWagon(Train *v)
03416 {
03417 Train *first = v->First();
03418
03419
03420
03421
03422 Train *u = v;
03423 for (; v->Next() != NULL; v = v->Next()) u = v;
03424 u->SetNext(NULL);
03425
03426 if (first != v) {
03427
03428 first->ConsistChanged(false);
03429
03430
03431 if (first->track == TRACK_BIT_DEPOT) {
03432 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03433 }
03434 }
03435
03436
03437 TrackBits trackbits = v->track;
03438 TileIndex tile = v->tile;
03439 Owner owner = v->owner;
03440
03441 delete v;
03442 v = NULL;
03443
03444 if (trackbits == TRACK_BIT_WORMHOLE) {
03445
03446 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03447 }
03448
03449 Track track = TrackBitsToTrack(trackbits);
03450 if (HasReservedTracks(tile, trackbits)) {
03451 UnreserveRailTrack(tile, track);
03452
03453
03454 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03455 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03456
03457
03458 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03459 Track t;
03460 FOR_EACH_SET_TRACK(t, remaining_trackbits) TryReserveRailTrack(tile, t);
03461 }
03462
03463
03464 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03465
03466
03467 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03468 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03469 } else {
03470 SetSignalsOnBothDir(tile, track, owner);
03471 }
03472 }
03473
03478 static void ChangeTrainDirRandomly(Train *v)
03479 {
03480 static const DirDiff delta[] = {
03481 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03482 };
03483
03484 do {
03485
03486 if (!(v->vehstatus & VS_HIDDEN)) {
03487 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03488 v->UpdateDeltaXY(v->direction);
03489 v->cur_image = v->GetImage(v->direction, EIT_ON_MAP);
03490
03491
03492
03493 if (v->track != TRACK_BIT_WORMHOLE) {
03494 VehicleUpdatePosition(v);
03495 v->UpdateInclination(false, false);
03496 }
03497 }
03498 } while ((v = v->Next()) != NULL);
03499 }
03500
03506 static bool HandleCrashedTrain(Train *v)
03507 {
03508 int state = ++v->crash_anim_pos;
03509
03510 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03511 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03512 }
03513
03514 uint32 r;
03515 if (state <= 200 && Chance16R(1, 7, r)) {
03516 int index = (r * 10 >> 16);
03517
03518 Vehicle *u = v;
03519 do {
03520 if (--index < 0) {
03521 r = Random();
03522
03523 CreateEffectVehicleRel(u,
03524 GB(r, 8, 3) + 2,
03525 GB(r, 16, 3) + 2,
03526 GB(r, 0, 3) + 5,
03527 EV_EXPLOSION_SMALL);
03528 break;
03529 }
03530 } while ((u = u->Next()) != NULL);
03531 }
03532
03533 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03534
03535 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03536 bool ret = v->Next() != NULL;
03537 DeleteLastWagon(v);
03538 return ret;
03539 }
03540
03541 return true;
03542 }
03543
03545 static const uint16 _breakdown_speeds[16] = {
03546 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03547 };
03548
03549
03558 static bool TrainApproachingLineEnd(Train *v, bool signal, bool reverse)
03559 {
03560
03561 uint x = v->x_pos & 0xF;
03562 uint y = v->y_pos & 0xF;
03563
03564
03565
03566 switch (v->direction) {
03567 case DIR_N : x = ~x + ~y + 25; break;
03568 case DIR_NW: x = y;
03569 case DIR_NE: x = ~x + 16; break;
03570 case DIR_E : x = ~x + y + 9; break;
03571 case DIR_SE: x = y; break;
03572 case DIR_S : x = x + y - 7; break;
03573 case DIR_W : x = ~y + x + 9; break;
03574 default: break;
03575 }
03576
03577
03578
03579
03580
03581
03582 if (!signal && x + (v->gcache.cached_veh_length + 1) / 2 * (IsDiagonalDirection(v->direction) ? 1 : 2) >= TILE_SIZE) {
03583
03584 v->cur_speed = 0;
03585 if (reverse) ReverseTrainDirection(v);
03586 return false;
03587 }
03588
03589
03590 v->vehstatus |= VS_TRAIN_SLOWING;
03591 uint16 break_speed = _breakdown_speeds[x & 0xF];
03592 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03593
03594 return true;
03595 }
03596
03597
03603 static bool TrainCanLeaveTile(const Train *v)
03604 {
03605
03606 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03607
03608 TileIndex tile = v->tile;
03609
03610
03611 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03612 DiagDirection dir = GetTunnelBridgeDirection(tile);
03613 if (DiagDirToDir(dir) == v->direction) return false;
03614 }
03615
03616
03617 if (IsRailDepotTile(tile)) {
03618 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03619 if (DiagDirToDir(dir) == v->direction) return false;
03620 }
03621
03622 return true;
03623 }
03624
03625
03633 static TileIndex TrainApproachingCrossingTile(const Train *v)
03634 {
03635 assert(v->IsFrontEngine());
03636 assert(!(v->vehstatus & VS_CRASHED));
03637
03638 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03639
03640 DiagDirection dir = TrainExitDir(v->direction, v->track);
03641 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03642
03643
03644 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03645 !CheckCompatibleRail(v, tile)) {
03646 return INVALID_TILE;
03647 }
03648
03649 return tile;
03650 }
03651
03652
03660 static bool TrainCheckIfLineEnds(Train *v, bool reverse)
03661 {
03662
03663
03664 int t = v->breakdown_ctr;
03665 if (t > 1) {
03666 v->vehstatus |= VS_TRAIN_SLOWING;
03667
03668 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03669 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03670 } else {
03671 v->vehstatus &= ~VS_TRAIN_SLOWING;
03672 }
03673
03674 if (!TrainCanLeaveTile(v)) return true;
03675
03676
03677 DiagDirection dir = TrainExitDir(v->direction, v->track);
03678
03679 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03680
03681
03682 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03683 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03684
03685 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03686 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03687
03688
03689
03690
03691 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03692 if (_settings_game.pf.forbid_90_deg) {
03693 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03694 }
03695
03696
03697 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03698 return TrainApproachingLineEnd(v, false, reverse);
03699 }
03700
03701
03702 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true, reverse);
03703
03704
03705 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03706
03707 return true;
03708 }
03709
03710
03711 static bool TrainLocoHandler(Train *v, bool mode)
03712 {
03713
03714 if (v->vehstatus & VS_CRASHED) {
03715 return mode ? true : HandleCrashedTrain(v);
03716 }
03717
03718 if (v->force_proceed != TFP_NONE) {
03719 ClrBit(v->flags, VRF_TRAIN_STUCK);
03720 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03721 }
03722
03723
03724 if (v->HandleBreakdown()) return true;
03725
03726 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03727 ReverseTrainDirection(v);
03728 }
03729
03730
03731 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03732
03733 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03734 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03735 v->wait_counter = 0;
03736 v->cur_speed = 0;
03737 v->subspeed = 0;
03738 ClrBit(v->flags, VRF_LEAVING_STATION);
03739 ReverseTrainDirection(v);
03740 return true;
03741 } else if (HasBit(v->flags, VRF_LEAVING_STATION)) {
03742
03743
03744
03745 DiagDirection dir = TrainExitDir(v->direction, v->track);
03746 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
03747
03748 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
03749 TryPathReserve(v, true, true);
03750 }
03751 ClrBit(v->flags, VRF_LEAVING_STATION);
03752 }
03753
03754 v->HandleLoading(mode);
03755
03756 if (v->current_order.IsType(OT_LOADING)) return true;
03757
03758 if (CheckTrainStayInDepot(v)) return true;
03759
03760 if (!mode) v->ShowVisualEffect();
03761
03762
03763 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03764 CheckNextTrainTile(v);
03765 }
03766
03767
03768 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03769 ++v->wait_counter;
03770
03771
03772 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.reverse_at_signals;
03773
03774 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == TFP_NONE) return true;
03775 if (!TryPathReserve(v)) {
03776
03777 if (turn_around) ReverseTrainDirection(v);
03778
03779 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03780
03781 if (_settings_client.gui.lost_vehicle_warn && v->owner == _local_company) {
03782 SetDParam(0, v->index);
03783 AddVehicleNewsItem(
03784 STR_NEWS_TRAIN_IS_STUCK,
03785 NS_ADVICE,
03786 v->index
03787 );
03788 }
03789 v->wait_counter = 0;
03790 }
03791
03792 if (v->force_proceed == TFP_NONE) return true;
03793 ClrBit(v->flags, VRF_TRAIN_STUCK);
03794 v->wait_counter = 0;
03795 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03796 }
03797 }
03798
03799 if (v->current_order.IsType(OT_LEAVESTATION)) {
03800 v->current_order.Free();
03801 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03802 return true;
03803 }
03804
03805 int j = v->UpdateSpeed();
03806
03807
03808 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
03809
03810 v->force_proceed = TFP_NONE;
03811 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03812 }
03813
03814 int adv_spd = v->GetAdvanceDistance();
03815 if (j < adv_spd) {
03816
03817 if (v->cur_speed == 0) v->SetLastSpeed();
03818 } else {
03819 TrainCheckIfLineEnds(v);
03820
03821 for (;;) {
03822 j -= adv_spd;
03823 TrainController(v, NULL);
03824
03825 if (CheckTrainCollision(v)) break;
03826
03827 adv_spd = v->GetAdvanceDistance();
03828
03829
03830 if (j < adv_spd || v->cur_speed == 0) break;
03831
03832 OrderType order_type = v->current_order.GetType();
03833
03834 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
03835 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
03836 IsTileType(v->tile, MP_STATION) &&
03837 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
03838 ProcessOrders(v);
03839 }
03840 }
03841 v->SetLastSpeed();
03842 }
03843
03844 for (Train *u = v; u != NULL; u = u->Next()) {
03845 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
03846
03847 u->UpdateViewport(false, false);
03848 }
03849
03850 if (v->progress == 0) v->progress = j;
03851
03852 return true;
03853 }
03854
03859 Money Train::GetRunningCost() const
03860 {
03861 Money cost = 0;
03862 const Train *v = this;
03863
03864 do {
03865 const Engine *e = v->GetEngine();
03866 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
03867
03868 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
03869 if (cost_factor == 0) continue;
03870
03871
03872 if (v->IsMultiheaded()) cost_factor /= 2;
03873
03874 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->GetGRF());
03875 } while ((v = v->GetNextVehicle()) != NULL);
03876
03877 return cost;
03878 }
03879
03884 bool Train::Tick()
03885 {
03886 this->tick_counter++;
03887
03888 if (this->IsFrontEngine()) {
03889 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
03890
03891 this->current_order_time++;
03892
03893 if (!TrainLocoHandler(this, false)) return false;
03894
03895 return TrainLocoHandler(this, true);
03896 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
03897
03898 if (++this->crash_anim_pos >= 4400) {
03899 delete this;
03900 return false;
03901 }
03902 }
03903
03904 return true;
03905 }
03906
03911 static void CheckIfTrainNeedsService(Train *v)
03912 {
03913 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
03914 if (v->IsInDepot()) {
03915 VehicleServiceInDepot(v);
03916 return;
03917 }
03918
03919 uint max_penalty;
03920 switch (_settings_game.pf.pathfinder_for_trains) {
03921 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
03922 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
03923 default: NOT_REACHED();
03924 }
03925
03926 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
03927
03928 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
03929 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
03930
03931
03932
03933 v->current_order.MakeDummy();
03934 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03935 }
03936 return;
03937 }
03938
03939 DepotID depot = GetDepotIndex(tfdd.tile);
03940
03941 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
03942 v->current_order.GetDestination() != depot &&
03943 !Chance16(3, 16)) {
03944 return;
03945 }
03946
03947 SetBit(v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
03948 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
03949 v->dest_tile = tfdd.tile;
03950 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03951 }
03952
03954 void Train::OnNewDay()
03955 {
03956 AgeVehicle(this);
03957
03958 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
03959
03960 if (this->IsFrontEngine()) {
03961 CheckVehicleBreakdown(this);
03962
03963 CheckIfTrainNeedsService(this);
03964
03965 CheckOrders(this);
03966
03967
03968 if (this->current_order.IsType(OT_GOTO_STATION)) {
03969 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
03970 if (tile != INVALID_TILE) this->dest_tile = tile;
03971 }
03972
03973 if (this->running_ticks != 0) {
03974
03975 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
03976
03977 this->profit_this_year -= cost.GetCost();
03978 this->running_ticks = 0;
03979
03980 SubtractMoneyFromCompanyFract(this->owner, cost);
03981
03982 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
03983 SetWindowClassesDirty(WC_TRAINS_LIST);
03984 }
03985 }
03986 }
03987
03992 Trackdir Train::GetVehicleTrackdir() const
03993 {
03994 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
03995
03996 if (this->track == TRACK_BIT_DEPOT) {
03997
03998 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
03999 }
04000
04001 if (this->track == TRACK_BIT_WORMHOLE) {
04002
04003 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
04004 }
04005
04006 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
04007 }