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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 "newgrf_sound.h"
00021 #include "newgrf_text.h"
00022 #include "strings_func.h"
00023 #include "viewport_func.h"
00024 #include "vehicle_func.h"
00025 #include "sound_func.h"
00026 #include "ai/ai.hpp"
00027 #include "game/game.hpp"
00028 #include "newgrf_station.h"
00029 #include "effectvehicle_func.h"
00030 #include "network/network.h"
00031 #include "spritecache.h"
00032 #include "core/random_func.hpp"
00033 #include "company_base.h"
00034 #include "newgrf.h"
00035 #include "order_backup.h"
00036 #include "zoom_func.h"
00037
00038 #include "table/strings.h"
00039 #include "table/train_cmd.h"
00040
00041 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck);
00042 static bool TrainCheckIfLineEnds(Train *v, bool reverse = true);
00043 bool TrainController(Train *v, Vehicle *nomove, bool reverse = true);
00044 static TileIndex TrainApproachingCrossingTile(const Train *v);
00045 static void CheckIfTrainNeedsService(Train *v);
00046 static void CheckNextTrainTile(Train *v);
00047
00048 static const byte _vehicle_initial_x_fract[4] = {10, 8, 4, 8};
00049 static const byte _vehicle_initial_y_fract[4] = { 8, 4, 8, 10};
00050
00051
00059 static inline DiagDirection TrainExitDir(Direction direction, TrackBits track)
00060 {
00061 static const TrackBits state_dir_table[DIAGDIR_END] = { TRACK_BIT_RIGHT, TRACK_BIT_LOWER, TRACK_BIT_LEFT, TRACK_BIT_UPPER };
00062
00063 DiagDirection diagdir = DirToDiagDir(direction);
00064
00065
00066 if (!HasBit(direction, 0) && track != state_dir_table[diagdir]) {
00067 diagdir = ChangeDiagDir(diagdir, DIAGDIRDIFF_90LEFT);
00068 }
00069
00070 return diagdir;
00071 }
00072
00073
00079 byte FreightWagonMult(CargoID cargo)
00080 {
00081 if (!CargoSpec::Get(cargo)->is_freight) return 1;
00082 return _settings_game.vehicle.freight_trains;
00083 }
00084
00086 void CheckTrainsLengths()
00087 {
00088 const Train *v;
00089 bool first = true;
00090
00091 FOR_ALL_TRAINS(v) {
00092 if (v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00093 for (const Train *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00094 if (u->track != TRACK_BIT_DEPOT) {
00095 if ((w->track != TRACK_BIT_DEPOT &&
00096 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->CalcNextVehicleOffset()) ||
00097 (w->track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00098 SetDParam(0, v->index);
00099 SetDParam(1, v->owner);
00100 ShowErrorMessage(STR_BROKEN_VEHICLE_LENGTH, INVALID_STRING_ID, WL_CRITICAL);
00101
00102 if (!_networking && first) {
00103 first = false;
00104 DoCommandP(0, PM_PAUSED_ERROR, 1, CMD_PAUSE);
00105 }
00106
00107 break;
00108 }
00109 }
00110 }
00111 }
00112 }
00113 }
00114
00119 void Train::RailtypeChanged()
00120 {
00121 for (Train *u = this; u != NULL; u = u->Next()) {
00122
00123 u->UpdateVisualEffect(false);
00124 }
00125 this->PowerChanged();
00126 if (this->IsFrontEngine()) this->UpdateAcceleration();
00127 }
00128
00135 void Train::ConsistChanged(bool same_length)
00136 {
00137 uint16 max_speed = UINT16_MAX;
00138
00139 assert(this->IsFrontEngine() || this->IsFreeWagon());
00140
00141 const RailVehicleInfo *rvi_v = RailVehInfo(this->engine_type);
00142 EngineID first_engine = this->IsFrontEngine() ? this->engine_type : INVALID_ENGINE;
00143 this->gcache.cached_total_length = 0;
00144 this->compatible_railtypes = RAILTYPES_NONE;
00145
00146 bool train_can_tilt = true;
00147
00148 for (Train *u = this; u != NULL; u = u->Next()) {
00149 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00150
00151
00152 assert(u->First() == this);
00153
00154
00155 u->gcache.first_engine = this == u ? INVALID_ENGINE : first_engine;
00156 u->railtype = rvi_u->railtype;
00157
00158 if (u->IsEngine()) first_engine = u->engine_type;
00159
00160
00161 u->tcache.user_def_data = rvi_u->user_def_data;
00162 this->InvalidateNewGRFCache();
00163 u->InvalidateNewGRFCache();
00164 }
00165
00166 for (Train *u = this; u != NULL; u = u->Next()) {
00167
00168 u->tcache.user_def_data = GetVehicleProperty(u, PROP_TRAIN_USER_DATA, u->tcache.user_def_data);
00169 this->InvalidateNewGRFCache();
00170 u->InvalidateNewGRFCache();
00171 }
00172
00173 for (Train *u = this; u != NULL; u = u->Next()) {
00174 const Engine *e_u = u->GetEngine();
00175 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00176
00177 if (!HasBit(e_u->info.misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00178
00179
00180 u->tcache.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->gcache.first_engine);
00181
00182
00183 u->colourmap = PAL_NONE;
00184
00185
00186 u->UpdateVisualEffect(true);
00187
00188 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00189 UsesWagonOverride(u) && !HasBit(u->vcache.cached_vis_effect, VE_DISABLE_WAGON_POWER)) {
00190
00191 SetBit(u->flags, VRF_POWEREDWAGON);
00192 } else {
00193 ClrBit(u->flags, VRF_POWEREDWAGON);
00194 }
00195
00196 if (!u->IsArticulatedPart()) {
00197
00198
00199 if (rvi_u->power > 0) {
00200 this->compatible_railtypes |= GetRailTypeInfo(u->railtype)->powered_railtypes;
00201 }
00202
00203
00204
00205 if (HasBit(u->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00206 u->railtype = RAILTYPE_RAIL;
00207 u->compatible_railtypes |= RAILTYPES_RAIL;
00208 }
00209
00210
00211 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00212 uint16 speed = GetVehicleProperty(u, PROP_TRAIN_SPEED, rvi_u->max_speed);
00213 if (speed != 0) max_speed = min(speed, max_speed);
00214 }
00215 }
00216
00217 u->cargo_cap = e_u->DetermineCapacity(u);
00218 u->vcache.cached_cargo_age_period = GetVehicleProperty(u, PROP_TRAIN_CARGO_AGE_PERIOD, e_u->info.cargo_age_period);
00219
00220
00221 uint16 veh_len = CALLBACK_FAILED;
00222 if (e_u->GetGRF() != NULL && e_u->GetGRF()->grf_version >= 8) {
00223
00224 veh_len = GetVehicleProperty(u, PROP_TRAIN_SHORTEN_FACTOR, CALLBACK_FAILED);
00225 } else if (HasBit(e_u->info.callback_mask, CBM_VEHICLE_LENGTH)) {
00226
00227 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00228 }
00229 if (veh_len != CALLBACK_FAILED && veh_len >= VEHICLE_LENGTH) {
00230 ErrorUnknownCallbackResult(e_u->GetGRFID(), CBID_VEHICLE_LENGTH, veh_len);
00231 }
00232 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00233 veh_len = VEHICLE_LENGTH - Clamp(veh_len, 0, VEHICLE_LENGTH - 1);
00234
00235
00236 if (same_length && veh_len != u->gcache.cached_veh_length) VehicleLengthChanged(u);
00237
00238
00239 if (!same_length) u->gcache.cached_veh_length = veh_len;
00240
00241 this->gcache.cached_total_length += u->gcache.cached_veh_length;
00242 this->InvalidateNewGRFCache();
00243 u->InvalidateNewGRFCache();
00244 }
00245
00246
00247 this->vcache.cached_max_speed = max_speed;
00248 this->tcache.cached_tilt = train_can_tilt;
00249 this->tcache.cached_max_curve_speed = this->GetCurveSpeedLimit();
00250
00251
00252 this->CargoChanged();
00253
00254 if (this->IsFrontEngine()) {
00255 this->UpdateAcceleration();
00256 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00257 InvalidateWindowData(WC_VEHICLE_REFIT, this->index);
00258 }
00259 }
00260
00271 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length)
00272 {
00273 const Station *st = Station::Get(station_id);
00274 *station_ahead = st->GetPlatformLength(tile, DirToDiagDir(v->direction)) * TILE_SIZE;
00275 *station_length = st->GetPlatformLength(tile) * TILE_SIZE;
00276
00277
00278
00279 OrderStopLocation osl = OSL_PLATFORM_MIDDLE;
00280 if (v->gcache.cached_total_length >= *station_length) {
00281
00282 osl = OSL_PLATFORM_FAR_END;
00283 } else if (v->current_order.IsType(OT_GOTO_STATION) && v->current_order.GetDestination() == station_id) {
00284 osl = v->current_order.GetStopLocation();
00285 }
00286
00287
00288 int stop;
00289 switch (osl) {
00290 default: NOT_REACHED();
00291
00292 case OSL_PLATFORM_NEAR_END:
00293 stop = v->gcache.cached_total_length;
00294 break;
00295
00296 case OSL_PLATFORM_MIDDLE:
00297 stop = *station_length - (*station_length - v->gcache.cached_total_length) / 2;
00298 break;
00299
00300 case OSL_PLATFORM_FAR_END:
00301 stop = *station_length;
00302 break;
00303 }
00304
00305
00306
00307 return stop - (v->gcache.cached_veh_length + 1) / 2;
00308 }
00309
00310
00315 int Train::GetCurveSpeedLimit() const
00316 {
00317 assert(this->First() == this);
00318
00319 static const int absolute_max_speed = UINT16_MAX;
00320 int max_speed = absolute_max_speed;
00321
00322 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return max_speed;
00323
00324 int curvecount[2] = {0, 0};
00325
00326
00327 int numcurve = 0;
00328 int sum = 0;
00329 int pos = 0;
00330 int lastpos = -1;
00331 for (const Vehicle *u = this; u->Next() != NULL; u = u->Next(), pos++) {
00332 Direction this_dir = u->direction;
00333 Direction next_dir = u->Next()->direction;
00334
00335 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00336 if (dirdiff == DIRDIFF_SAME) continue;
00337
00338 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00339 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00340 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00341 if (lastpos != -1) {
00342 numcurve++;
00343 sum += pos - lastpos;
00344 if (pos - lastpos == 1 && max_speed > 88) {
00345 max_speed = 88;
00346 }
00347 }
00348 lastpos = pos;
00349 }
00350
00351
00352 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00353 max_speed = 61;
00354 }
00355 }
00356
00357 if (numcurve > 0 && max_speed > 88) {
00358 if (curvecount[0] == 1 && curvecount[1] == 1) {
00359 max_speed = absolute_max_speed;
00360 } else {
00361 sum /= numcurve;
00362 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00363 }
00364 }
00365
00366 if (max_speed != absolute_max_speed) {
00367
00368 const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00369 max_speed += (max_speed / 2) * rti->curve_speed;
00370
00371 if (this->tcache.cached_tilt) {
00372
00373 max_speed += max_speed / 5;
00374 }
00375 }
00376
00377 return max_speed;
00378 }
00379
00384 int Train::GetCurrentMaxSpeed() const
00385 {
00386 int max_speed = this->tcache.cached_max_curve_speed;
00387 assert(max_speed == this->GetCurveSpeedLimit());
00388
00389 if (IsRailStationTile(this->tile)) {
00390 StationID sid = GetStationIndex(this->tile);
00391 if (this->current_order.ShouldStopAtStation(this, sid)) {
00392 int station_ahead;
00393 int station_length;
00394 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00395
00396
00397
00398 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00399
00400 if (distance_to_go > 0) {
00401 int st_max_speed = 120;
00402
00403 int delta_v = this->cur_speed / (distance_to_go + 1);
00404 if (max_speed > (this->cur_speed - delta_v)) {
00405 st_max_speed = this->cur_speed - (delta_v / 10);
00406 }
00407
00408 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00409 max_speed = min(max_speed, st_max_speed);
00410 }
00411 }
00412 }
00413
00414 for (const Train *u = this; u != NULL; u = u->Next()) {
00415 if (u->track == TRACK_BIT_DEPOT) {
00416 max_speed = min(max_speed, 61);
00417 break;
00418 }
00419 }
00420
00421 return min(max_speed, this->gcache.cached_max_track_speed);
00422 }
00423
00425 void Train::UpdateAcceleration()
00426 {
00427 assert(this->IsFrontEngine());
00428
00429 uint power = this->gcache.cached_power;
00430 uint weight = this->gcache.cached_weight;
00431 assert(weight != 0);
00432 this->acceleration = Clamp(power / weight * 4, 1, 255);
00433 }
00434
00440 int Train::GetDisplayImageWidth(Point *offset) const
00441 {
00442 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00443 int vehicle_pitch = 0;
00444
00445 const Engine *e = this->GetEngine();
00446 if (e->GetGRF() != NULL && is_custom_sprite(e->u.rail.image_index)) {
00447 reference_width = e->GetGRF()->traininfo_vehicle_width;
00448 vehicle_pitch = e->GetGRF()->traininfo_vehicle_pitch;
00449 }
00450
00451 if (offset != NULL) {
00452 offset->x = reference_width / 2;
00453 offset->y = vehicle_pitch;
00454 }
00455 return this->gcache.cached_veh_length * reference_width / VEHICLE_LENGTH;
00456 }
00457
00458 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00459 {
00460 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00461 }
00462
00469 SpriteID Train::GetImage(Direction direction, EngineImageType image_type) const
00470 {
00471 uint8 spritenum = this->spritenum;
00472 SpriteID sprite;
00473
00474 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00475
00476 if (is_custom_sprite(spritenum)) {
00477 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)), image_type);
00478 if (sprite != 0) return sprite;
00479
00480 spritenum = this->GetEngine()->original_image_index;
00481 }
00482
00483 sprite = GetDefaultTrainSprite(spritenum, direction);
00484
00485 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00486
00487 return sprite;
00488 }
00489
00490 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y, EngineImageType image_type)
00491 {
00492 const Engine *e = Engine::Get(engine);
00493 Direction dir = rear_head ? DIR_E : DIR_W;
00494 uint8 spritenum = e->u.rail.image_index;
00495
00496 if (is_custom_sprite(spritenum)) {
00497 SpriteID sprite = GetCustomVehicleIcon(engine, dir, image_type);
00498 if (sprite != 0) {
00499 if (e->GetGRF() != NULL) {
00500 y += e->GetGRF()->traininfo_vehicle_pitch;
00501 }
00502 return sprite;
00503 }
00504
00505 spritenum = Engine::Get(engine)->original_image_index;
00506 }
00507
00508 if (rear_head) spritenum++;
00509
00510 return GetDefaultTrainSprite(spritenum, DIR_W);
00511 }
00512
00513 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal, EngineImageType image_type)
00514 {
00515 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00516 int yf = y;
00517 int yr = y;
00518
00519 SpriteID spritef = GetRailIcon(engine, false, yf, image_type);
00520 SpriteID spriter = GetRailIcon(engine, true, yr, image_type);
00521 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00522 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00523
00524 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);
00525
00526 DrawSprite(spritef, pal, preferred_x - 14, yf);
00527 DrawSprite(spriter, pal, preferred_x + 15, yr);
00528 } else {
00529 SpriteID sprite = GetRailIcon(engine, false, y, image_type);
00530 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00531 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));
00532 DrawSprite(sprite, pal, preferred_x, y);
00533 }
00534 }
00535
00544 static CommandCost CmdBuildRailWagon(TileIndex tile, DoCommandFlag flags, const Engine *e, Vehicle **ret)
00545 {
00546 const RailVehicleInfo *rvi = &e->u.rail;
00547
00548
00549 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00550
00551 if (flags & DC_EXEC) {
00552 Train *v = new Train();
00553 *ret = v;
00554 v->spritenum = rvi->image_index;
00555
00556 v->engine_type = e->index;
00557 v->gcache.first_engine = INVALID_ENGINE;
00558
00559 DiagDirection dir = GetRailDepotDirection(tile);
00560
00561 v->direction = DiagDirToDir(dir);
00562 v->tile = tile;
00563
00564 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00565 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00566
00567 v->x_pos = x;
00568 v->y_pos = y;
00569 v->z_pos = GetSlopePixelZ(x, y);
00570 v->owner = _current_company;
00571 v->track = TRACK_BIT_DEPOT;
00572 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00573
00574 v->SetWagon();
00575
00576 v->SetFreeWagon();
00577 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00578
00579 v->cargo_type = e->GetDefaultCargoType();
00580 v->cargo_cap = rvi->capacity;
00581
00582 v->railtype = rvi->railtype;
00583
00584 v->build_year = _cur_year;
00585 v->cur_image = SPR_IMG_QUERY;
00586 v->random_bits = VehicleRandomBits();
00587
00588 v->group_id = DEFAULT_GROUP;
00589
00590 AddArticulatedParts(v);
00591
00592 _new_vehicle_id = v->index;
00593
00594 VehicleUpdatePosition(v);
00595 v->First()->ConsistChanged(false);
00596 UpdateTrainGroupID(v->First());
00597
00598 CheckConsistencyOfArticulatedVehicle(v);
00599
00600
00601 Train *w;
00602 FOR_ALL_TRAINS(w) {
00603 if (w->tile == tile &&
00604 w->IsFreeWagon() &&
00605 w->engine_type == e->index &&
00606 w->First() != v &&
00607 !(w->vehstatus & VS_CRASHED)) {
00608 DoCommand(0, v->index | 1 << 20, w->Last()->index, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00609 break;
00610 }
00611 }
00612 }
00613
00614 return CommandCost();
00615 }
00616
00618 static void NormalizeTrainVehInDepot(const Train *u)
00619 {
00620 const Train *v;
00621 FOR_ALL_TRAINS(v) {
00622 if (v->IsFreeWagon() && v->tile == u->tile &&
00623 v->track == TRACK_BIT_DEPOT) {
00624 if (DoCommand(0, v->index | 1 << 20, u->index, DC_EXEC,
00625 CMD_MOVE_RAIL_VEHICLE).Failed())
00626 break;
00627 }
00628 }
00629 }
00630
00631 static void AddRearEngineToMultiheadedTrain(Train *v)
00632 {
00633 Train *u = new Train();
00634 v->value >>= 1;
00635 u->value = v->value;
00636 u->direction = v->direction;
00637 u->owner = v->owner;
00638 u->tile = v->tile;
00639 u->x_pos = v->x_pos;
00640 u->y_pos = v->y_pos;
00641 u->z_pos = v->z_pos;
00642 u->track = TRACK_BIT_DEPOT;
00643 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00644 u->spritenum = v->spritenum + 1;
00645 u->cargo_type = v->cargo_type;
00646 u->cargo_subtype = v->cargo_subtype;
00647 u->cargo_cap = v->cargo_cap;
00648 u->railtype = v->railtype;
00649 u->engine_type = v->engine_type;
00650 u->build_year = v->build_year;
00651 u->cur_image = SPR_IMG_QUERY;
00652 u->random_bits = VehicleRandomBits();
00653 v->SetMultiheaded();
00654 u->SetMultiheaded();
00655 v->SetNext(u);
00656 VehicleUpdatePosition(u);
00657
00658
00659 v->other_multiheaded_part = u;
00660 u->other_multiheaded_part = v;
00661 }
00662
00672 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, const Engine *e, uint16 data, Vehicle **ret)
00673 {
00674 const RailVehicleInfo *rvi = &e->u.rail;
00675
00676 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(tile, flags, e, ret);
00677
00678
00679
00680 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00681
00682 if (flags & DC_EXEC) {
00683 DiagDirection dir = GetRailDepotDirection(tile);
00684 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00685 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00686
00687 Train *v = new Train();
00688 *ret = v;
00689 v->direction = DiagDirToDir(dir);
00690 v->tile = tile;
00691 v->owner = _current_company;
00692 v->x_pos = x;
00693 v->y_pos = y;
00694 v->z_pos = GetSlopePixelZ(x, y);
00695 v->track = TRACK_BIT_DEPOT;
00696 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00697 v->spritenum = rvi->image_index;
00698 v->cargo_type = e->GetDefaultCargoType();
00699 v->cargo_cap = rvi->capacity;
00700 v->last_station_visited = INVALID_STATION;
00701
00702 v->engine_type = e->index;
00703 v->gcache.first_engine = INVALID_ENGINE;
00704
00705 v->reliability = e->reliability;
00706 v->reliability_spd_dec = e->reliability_spd_dec;
00707 v->max_age = e->GetLifeLengthInDays();
00708
00709 v->railtype = rvi->railtype;
00710 _new_vehicle_id = v->index;
00711
00712 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00713 v->date_of_last_service = _date;
00714 v->build_year = _cur_year;
00715 v->cur_image = SPR_IMG_QUERY;
00716 v->random_bits = VehicleRandomBits();
00717
00718 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00719
00720 v->group_id = DEFAULT_GROUP;
00721
00722 v->SetFrontEngine();
00723 v->SetEngine();
00724
00725 VehicleUpdatePosition(v);
00726
00727 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00728 AddRearEngineToMultiheadedTrain(v);
00729 } else {
00730 AddArticulatedParts(v);
00731 }
00732
00733 v->ConsistChanged(false);
00734 UpdateTrainGroupID(v);
00735
00736 if (!HasBit(data, 0) && !(flags & DC_AUTOREPLACE)) {
00737 NormalizeTrainVehInDepot(v);
00738 }
00739
00740 CheckConsistencyOfArticulatedVehicle(v);
00741 }
00742
00743 return CommandCost();
00744 }
00745
00750 bool Train::IsInDepot() const
00751 {
00752
00753 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00754
00755
00756 for (const Train *v = this; v != NULL; v = v->Next()) {
00757 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00758 }
00759
00760 return true;
00761 }
00762
00767 bool Train::IsStoppedInDepot() const
00768 {
00769
00770 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00771 return this->IsInDepot();
00772 }
00773
00774 static Train *FindGoodVehiclePos(const Train *src)
00775 {
00776 EngineID eng = src->engine_type;
00777 TileIndex tile = src->tile;
00778
00779 Train *dst;
00780 FOR_ALL_TRAINS(dst) {
00781 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00782
00783 Train *t = dst;
00784 while (t->engine_type == eng) {
00785 t = t->Next();
00786 if (t == NULL) return dst;
00787 }
00788 }
00789 }
00790
00791 return NULL;
00792 }
00793
00795 typedef SmallVector<Train *, 16> TrainList;
00796
00802 static void MakeTrainBackup(TrainList &list, Train *t)
00803 {
00804 for (; t != NULL; t = t->Next()) *list.Append() = t;
00805 }
00806
00811 static void RestoreTrainBackup(TrainList &list)
00812 {
00813
00814 if (list.Length() == 0) return;
00815
00816 Train *prev = NULL;
00817
00818 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00819 Train *t = *iter;
00820 if (prev != NULL) {
00821 prev->SetNext(t);
00822 } else if (t->Previous() != NULL) {
00823
00824 t->Previous()->SetNext(NULL);
00825 }
00826 prev = t;
00827 }
00828 }
00829
00835 static void RemoveFromConsist(Train *part, bool chain = false)
00836 {
00837 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
00838
00839
00840
00841 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
00842
00843
00844 tail->SetNext(NULL);
00845 }
00846
00852 static void InsertInConsist(Train *dst, Train *chain)
00853 {
00854
00855 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
00856
00857 chain->Last()->SetNext(dst->Next());
00858 dst->SetNext(chain);
00859 }
00860
00866 static void NormaliseDualHeads(Train *t)
00867 {
00868 for (; t != NULL; t = t->GetNextVehicle()) {
00869 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
00870
00871
00872 Train *u;
00873 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
00874
00875 if (u == t->other_multiheaded_part) continue;
00876
00877
00878 RemoveFromConsist(t->other_multiheaded_part);
00879
00880 InsertInConsist(u, t->other_multiheaded_part);
00881 }
00882 }
00883
00888 static void NormaliseSubtypes(Train *chain)
00889 {
00890
00891 if (chain == NULL) return;
00892
00893
00894 assert(chain->Previous() == NULL);
00895
00896
00897 if (chain->IsWagon()) {
00898 chain->SetFreeWagon();
00899 } else {
00900 assert(chain->IsEngine());
00901 chain->SetFrontEngine();
00902 }
00903
00904
00905 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
00906 t->ClearFreeWagon();
00907 t->ClearFrontEngine();
00908 }
00909 }
00910
00920 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
00921 {
00922
00923
00924
00925 if ((src != NULL && src->IsEngine() ? 1 : 0) +
00926 (dst != NULL && dst->IsEngine() ? 1 : 0) -
00927 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
00928 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
00929 return CommandCost();
00930 }
00931
00932
00933
00934 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
00935
00936 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00937 }
00938
00944 static CommandCost CheckTrainAttachment(Train *t)
00945 {
00946
00947 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
00948
00949
00950
00951 int allowed_len = _settings_game.vehicle.max_train_length * TILE_SIZE - t->gcache.cached_veh_length;
00952
00953 Train *head = t;
00954 Train *prev = t;
00955
00956
00957 t = t->Next();
00958 prev->SetNext(NULL);
00959
00960
00961 head->InvalidateNewGRFCache();
00962
00963 while (t != NULL) {
00964 allowed_len -= t->gcache.cached_veh_length;
00965
00966 Train *next = t->Next();
00967
00968
00969
00970 t->SetNext(NULL);
00971
00972
00973 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
00974
00975 EngineID first_engine = t->gcache.first_engine;
00976 t->gcache.first_engine = INVALID_ENGINE;
00977
00978
00979
00980 t->InvalidateNewGRFCache();
00981
00982 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
00983
00984
00985 t->gcache.first_engine = first_engine;
00986
00987
00988 t->InvalidateNewGRFCache();
00989 head->InvalidateNewGRFCache();
00990
00991 if (callback != CALLBACK_FAILED) {
00992
00993 StringID error = STR_NULL;
00994
00995 if (head->GetGRF()->grf_version < 8) {
00996 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00997 if (callback < 0xFD) error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
00998 if (callback >= 0x100) ErrorUnknownCallbackResult(head->GetGRFID(), CBID_TRAIN_ALLOW_WAGON_ATTACH, callback);
00999 } else {
01000 if (callback < 0x400) {
01001 error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
01002 } else {
01003 switch (callback) {
01004 case 0x400:
01005 case 0x401:
01006 break;
01007
01008 default:
01009 case 0x402:
01010 error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
01011 break;
01012 }
01013 }
01014 }
01015
01016 if (error != STR_NULL) return_cmd_error(error);
01017 }
01018 }
01019
01020
01021 prev->SetNext(t);
01022 prev = t;
01023 t = next;
01024 }
01025
01026 if (allowed_len < 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01027 return CommandCost();
01028 }
01029
01040 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
01041 {
01042
01043 CommandCost ret = CheckTrainAttachment(src);
01044 if (ret.Failed()) return ret;
01045 ret = CheckTrainAttachment(dst);
01046 if (ret.Failed()) return ret;
01047
01048
01049 return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
01050 }
01051
01060 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01061 {
01062
01063 if (*src_head == *dst_head) {
01064
01065
01066 *dst_head = NULL;
01067 } else if (*dst_head == NULL) {
01068
01069
01070 *dst_head = src;
01071 }
01072
01073 if (src == *src_head) {
01074
01075
01076
01077
01078
01079
01080 *src_head = move_chain ? NULL :
01081 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01082 }
01083
01084
01085
01086
01087 RemoveFromConsist(src, move_chain);
01088 if (*dst_head != src) InsertInConsist(dst, src);
01089
01090
01091
01092 NormaliseDualHeads(*src_head);
01093 NormaliseDualHeads(*dst_head);
01094 }
01095
01101 static void NormaliseTrainHead(Train *head)
01102 {
01103
01104 if (head == NULL) return;
01105
01106
01107 head->ConsistChanged(false);
01108 UpdateTrainGroupID(head);
01109
01110
01111 if (!head->IsFrontEngine()) return;
01112
01113
01114 InvalidateWindowData(WC_VEHICLE_REFIT, head->index);
01115 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, WID_VV_REFIT);
01116
01117
01118 if (head->unitnumber != 0) return;
01119 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01120 }
01121
01134 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01135 {
01136 VehicleID s = GB(p1, 0, 20);
01137 VehicleID d = GB(p2, 0, 20);
01138 bool move_chain = HasBit(p1, 20);
01139
01140 Train *src = Train::GetIfValid(s);
01141 if (src == NULL) return CMD_ERROR;
01142
01143 CommandCost ret = CheckOwnership(src->owner);
01144 if (ret.Failed()) return ret;
01145
01146
01147 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01148
01149
01150 Train *dst;
01151 if (d == INVALID_VEHICLE) {
01152 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01153 } else {
01154 dst = Train::GetIfValid(d);
01155 if (dst == NULL) return CMD_ERROR;
01156
01157 CommandCost ret = CheckOwnership(dst->owner);
01158 if (ret.Failed()) return ret;
01159
01160
01161 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01162 }
01163
01164
01165 src = src->GetFirstEnginePart();
01166 if (dst != NULL) {
01167 dst = dst->GetFirstEnginePart();
01168 }
01169
01170
01171 if (src == dst) return CommandCost();
01172
01173
01174 Train *src_head = src->First();
01175 Train *dst_head;
01176 if (dst != NULL) {
01177 dst_head = dst->First();
01178 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01179
01180 dst = dst->GetLastEnginePart();
01181 } else {
01182 dst_head = NULL;
01183 }
01184
01185 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01186
01187
01188 if (move_chain && src_head == dst_head) return CommandCost();
01189
01190
01191 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01192
01193
01194 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01195
01196
01197 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01198
01199
01200
01201 TrainList original_src;
01202 TrainList original_dst;
01203
01204 MakeTrainBackup(original_src, src_head);
01205 MakeTrainBackup(original_dst, dst_head);
01206
01207
01208
01209
01210 Train *original_src_head = src_head;
01211 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01212
01213
01214 bool original_src_head_front_engine = original_src_head != NULL && original_src_head->IsFrontEngine();
01215 bool original_dst_head_front_engine = original_dst_head != NULL && original_dst_head->IsFrontEngine();
01216
01217
01218 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01219
01220 if ((flags & DC_AUTOREPLACE) == 0) {
01221
01222
01223
01224 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
01225 if (ret.Failed()) {
01226
01227 RestoreTrainBackup(original_src);
01228 RestoreTrainBackup(original_dst);
01229 return ret;
01230 }
01231 }
01232
01233
01234 if (flags & DC_EXEC) {
01235
01236 if (original_src_head_front_engine) GroupStatistics::CountVehicle(original_src_head, -1);
01237 if (original_dst_head_front_engine) GroupStatistics::CountVehicle(original_dst_head, -1);
01238
01239
01240 NormaliseSubtypes(src_head);
01241 NormaliseSubtypes(dst_head);
01242
01243
01244
01245
01246
01247
01248
01249
01250
01251
01252
01253
01254
01255
01256
01257
01258
01259
01260
01261
01262
01263 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01264
01265 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01266 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01267 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01268 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01269 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01270 SetWindowDirty(WC_COMPANY, _current_company);
01271
01272
01273
01274 DeleteVehicleOrders(src);
01275 RemoveVehicleFromGroup(src);
01276 src->unitnumber = 0;
01277 }
01278
01279
01280
01281 if (original_src_head != src && dst_head == src) {
01282 SetTrainGroupID(src, DEFAULT_GROUP);
01283 SetWindowDirty(WC_COMPANY, _current_company);
01284 }
01285
01286
01287 if (src_head != NULL && src_head->IsFrontEngine()) GroupStatistics::CountVehicle(src_head, 1);
01288 if (dst_head != NULL && dst_head->IsFrontEngine()) GroupStatistics::CountVehicle(dst_head, 1);
01289
01290
01291 NormaliseTrainHead(src_head);
01292 NormaliseTrainHead(dst_head);
01293
01294 if ((flags & DC_NO_CARGO_CAP_CHECK) == 0) {
01295 CheckCargoCapacity(src_head);
01296 CheckCargoCapacity(dst_head);
01297 }
01298
01299
01300 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01301 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01302 } else {
01303
01304 RestoreTrainBackup(original_src);
01305 RestoreTrainBackup(original_dst);
01306 }
01307
01308 return CommandCost();
01309 }
01310
01322 CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint32 user)
01323 {
01324
01325 Window *w = NULL;
01326
01327
01328 bool sell_chain = HasBit(data, 0);
01329
01330 Train *v = Train::From(t)->GetFirstEnginePart();
01331 Train *first = v->First();
01332
01333 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01334
01335
01336
01337 TrainList original;
01338 MakeTrainBackup(original, first);
01339
01340
01341 Train *new_head = first;
01342 Train *sell_head = NULL;
01343
01344
01345 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01346
01347
01348 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
01349 if (ret.Failed()) {
01350
01351 RestoreTrainBackup(original);
01352 return ret;
01353 }
01354
01355 CommandCost cost(EXPENSES_NEW_VEHICLES);
01356 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01357
01358 if (first->orders.list == NULL && !OrderList::CanAllocateItem()) {
01359 return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
01360 }
01361
01362
01363 if (flags & DC_EXEC) {
01364
01365 NormaliseSubtypes(new_head);
01366
01367 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01368
01369
01370 new_head->orders.list = first->orders.list;
01371 new_head->AddToShared(first);
01372 DeleteVehicleOrders(first);
01373
01374
01375 new_head->CopyVehicleConfigAndStatistics(first);
01376 GroupStatistics::CountVehicle(new_head, 1);
01377
01378
01379 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01380 } else if (v->IsPrimaryVehicle() && data & (MAKE_ORDER_BACKUP_FLAG >> 20)) {
01381 OrderBackup::Backup(v, user);
01382 }
01383
01384
01385 NormaliseTrainHead(new_head);
01386
01387
01388 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01389 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01390
01391
01392 delete sell_head;
01393 } else {
01394
01395 RestoreTrainBackup(original);
01396 }
01397
01398 return cost;
01399 }
01400
01401 void Train::UpdateDeltaXY(Direction direction)
01402 {
01403
01404 this->x_offs = -1;
01405 this->y_offs = -1;
01406 this->x_extent = 3;
01407 this->y_extent = 3;
01408 this->z_extent = 6;
01409 this->x_bb_offs = 0;
01410 this->y_bb_offs = 0;
01411
01412 if (!IsDiagonalDirection(direction)) {
01413 static const int _sign_table[] =
01414 {
01415
01416 -1, -1,
01417 -1, 1,
01418 1, 1,
01419 1, -1,
01420 };
01421
01422 int half_shorten = (VEHICLE_LENGTH - this->gcache.cached_veh_length) / 2;
01423
01424
01425 this->x_offs -= half_shorten * _sign_table[direction];
01426 this->y_offs -= half_shorten * _sign_table[direction + 1];
01427 this->x_extent += this->x_bb_offs = half_shorten * _sign_table[direction];
01428 this->y_extent += this->y_bb_offs = half_shorten * _sign_table[direction + 1];
01429 } else {
01430 switch (direction) {
01431
01432
01433 case DIR_NE:
01434 this->x_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01435 this->x_extent = this->gcache.cached_veh_length - 1;
01436 this->x_bb_offs = -1;
01437 break;
01438
01439 case DIR_NW:
01440 this->y_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01441 this->y_extent = this->gcache.cached_veh_length - 1;
01442 this->y_bb_offs = -1;
01443 break;
01444
01445
01446
01447 case DIR_SW:
01448 this->x_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01449 this->x_extent = VEHICLE_LENGTH - 1;
01450 this->x_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01451 break;
01452
01453 case DIR_SE:
01454 this->y_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01455 this->y_extent = VEHICLE_LENGTH - 1;
01456 this->y_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01457 break;
01458
01459 default:
01460 NOT_REACHED();
01461 }
01462 }
01463 }
01464
01469 static void MarkTrainAsStuck(Train *v)
01470 {
01471 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01472
01473 SetBit(v->flags, VRF_TRAIN_STUCK);
01474
01475 v->wait_counter = 0;
01476
01477
01478 v->cur_speed = 0;
01479 v->subspeed = 0;
01480 v->SetLastSpeed();
01481
01482 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01483 }
01484 }
01485
01493 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01494 {
01495 uint16 flag1 = *swap_flag1;
01496 uint16 flag2 = *swap_flag2;
01497
01498
01499 ClrBit(*swap_flag1, GVF_GOINGUP_BIT);
01500 ClrBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01501 ClrBit(*swap_flag2, GVF_GOINGUP_BIT);
01502 ClrBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01503
01504
01505 if (HasBit(flag1, GVF_GOINGUP_BIT)) {
01506 SetBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01507 } else if (HasBit(flag1, GVF_GOINGDOWN_BIT)) {
01508 SetBit(*swap_flag2, GVF_GOINGUP_BIT);
01509 }
01510 if (HasBit(flag2, GVF_GOINGUP_BIT)) {
01511 SetBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01512 } else if (HasBit(flag2, GVF_GOINGDOWN_BIT)) {
01513 SetBit(*swap_flag1, GVF_GOINGUP_BIT);
01514 }
01515 }
01516
01521 static void UpdateStatusAfterSwap(Train *v)
01522 {
01523
01524 if (v->track != TRACK_BIT_DEPOT) v->direction = ReverseDir(v->direction);
01525
01526
01527 if (v->track != TRACK_BIT_WORMHOLE) {
01528 VehicleEnterTile(v, v->tile, v->x_pos, v->y_pos);
01529 } else {
01530
01531
01532
01533
01534 TileIndex vt = TileVirtXY(v->x_pos, v->y_pos);
01535 if (IsTileType(vt, MP_TUNNELBRIDGE)) {
01536 VehicleEnterTile(v, vt, v->x_pos, v->y_pos);
01537 if (v->track != TRACK_BIT_WORMHOLE && IsBridgeTile(v->tile)) {
01538
01539
01540
01541 VehicleUpdatePosition(v);
01542 v->UpdateInclination(true, true);
01543 return;
01544 }
01545 }
01546 }
01547
01548 VehicleUpdatePosition(v);
01549 v->UpdateViewport(true, true);
01550 }
01551
01558 void ReverseTrainSwapVeh(Train *v, int l, int r)
01559 {
01560 Train *a, *b;
01561
01562
01563 for (a = v; l != 0; l--) a = a->Next();
01564 for (b = v; r != 0; r--) b = b->Next();
01565
01566 if (a != b) {
01567
01568 {
01569 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus & VS_HIDDEN);
01570 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus & VS_HIDDEN);
01571 a->vehstatus = tmp;
01572 }
01573
01574 Swap(a->track, b->track);
01575 Swap(a->direction, b->direction);
01576 Swap(a->x_pos, b->x_pos);
01577 Swap(a->y_pos, b->y_pos);
01578 Swap(a->tile, b->tile);
01579 Swap(a->z_pos, b->z_pos);
01580
01581 SwapTrainFlags(&a->gv_flags, &b->gv_flags);
01582
01583 UpdateStatusAfterSwap(a);
01584 UpdateStatusAfterSwap(b);
01585 } else {
01586
01587
01588
01589 SwapTrainFlags(&a->gv_flags, &a->gv_flags);
01590 UpdateStatusAfterSwap(a);
01591 }
01592
01593
01594 v->RailtypeChanged();
01595 }
01596
01597
01603 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01604 {
01605 return (v->type == VEH_TRAIN) ? v : NULL;
01606 }
01607
01608
01615 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01616 {
01617 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01618
01619 Train *t = Train::From(v);
01620 if (!t->IsFrontEngine()) return NULL;
01621
01622 TileIndex tile = *(TileIndex *)data;
01623
01624 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01625
01626 return t;
01627 }
01628
01629
01636 static bool TrainApproachingCrossing(TileIndex tile)
01637 {
01638 assert(IsLevelCrossingTile(tile));
01639
01640 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01641 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01642
01643 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01644
01645 dir = ReverseDiagDir(dir);
01646 tile_from = tile + TileOffsByDiagDir(dir);
01647
01648 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01649 }
01650
01651
01658 void UpdateLevelCrossing(TileIndex tile, bool sound)
01659 {
01660 assert(IsLevelCrossingTile(tile));
01661
01662
01663 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01664
01665 if (new_state != IsCrossingBarred(tile)) {
01666 if (new_state && sound) {
01667 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01668 }
01669 SetCrossingBarred(tile, new_state);
01670 MarkTileDirtyByTile(tile);
01671 }
01672 }
01673
01674
01680 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01681 {
01682 if (!IsCrossingBarred(tile)) {
01683 BarCrossing(tile);
01684 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01685 MarkTileDirtyByTile(tile);
01686 }
01687 }
01688
01689
01695 static void AdvanceWagonsBeforeSwap(Train *v)
01696 {
01697 Train *base = v;
01698 Train *first = base;
01699 Train *last = v->Last();
01700 uint length = CountVehiclesInChain(v);
01701
01702 while (length > 2) {
01703 last = last->Previous();
01704 first = first->Next();
01705
01706 int differential = base->CalcNextVehicleOffset() - last->CalcNextVehicleOffset();
01707
01708
01709
01710 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01711
01712 base = first;
01713 length -= 2;
01714 }
01715 }
01716
01717
01723 static void AdvanceWagonsAfterSwap(Train *v)
01724 {
01725
01726 Train *dep = v;
01727 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01728 dep = dep->Next();
01729 }
01730
01731 Train *leave = dep->Next();
01732
01733 if (leave != NULL) {
01734
01735 int d = TicksToLeaveDepot(dep);
01736
01737 if (d <= 0) {
01738 leave->vehstatus &= ~VS_HIDDEN;
01739 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01740 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01741 }
01742 } else {
01743 dep = NULL;
01744 }
01745
01746 Train *base = v;
01747 Train *first = base;
01748 Train *last = v->Last();
01749 uint length = CountVehiclesInChain(v);
01750
01751
01752
01753 bool nomove = (dep == NULL);
01754
01755 while (length > 2) {
01756
01757
01758 if (base == dep) break;
01759
01760
01761 if (last == dep) nomove = true;
01762
01763 last = last->Previous();
01764 first = first->Next();
01765
01766 int differential = last->CalcNextVehicleOffset() - base->CalcNextVehicleOffset();
01767
01768
01769 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01770
01771 base = first;
01772 length -= 2;
01773 }
01774 }
01775
01780 void ReverseTrainDirection(Train *v)
01781 {
01782 if (IsRailDepotTile(v->tile)) {
01783 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01784 }
01785
01786
01787 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01788
01789
01790 TileIndex crossing = TrainApproachingCrossingTile(v);
01791
01792
01793 int r = CountVehiclesInChain(v) - 1;
01794
01795 AdvanceWagonsBeforeSwap(v);
01796
01797
01798 int l = 0;
01799 do {
01800 ReverseTrainSwapVeh(v, l++, r--);
01801 } while (l <= r);
01802
01803 AdvanceWagonsAfterSwap(v);
01804
01805 if (IsRailDepotTile(v->tile)) {
01806 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01807 }
01808
01809 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01810
01811 ClrBit(v->flags, VRF_REVERSING);
01812
01813
01814 v->ConsistChanged(true);
01815
01816
01817 for (Train *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01818
01819
01820 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01821
01822
01823 crossing = TrainApproachingCrossingTile(v);
01824 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01825
01826
01827 if (v->track == TRACK_BIT_DEPOT) {
01828
01829 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01830 ClrBit(v->flags, VRF_TRAIN_STUCK);
01831 return;
01832 }
01833
01834
01835
01836 DiagDirection dir = TrainExitDir(v->direction, v->track);
01837 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01838
01839 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01840
01841
01842 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01843 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01844 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01845
01846 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01847 if (TryPathReserve(v, false, first_tile_okay)) {
01848
01849 CheckNextTrainTile(v);
01850 } else if (v->current_order.GetType() != OT_LOADING) {
01851
01852 MarkTrainAsStuck(v);
01853 }
01854 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01855
01856 ClrBit(v->flags, VRF_TRAIN_STUCK);
01857 v->wait_counter = 0;
01858 }
01859 }
01860
01870 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01871 {
01872 Train *v = Train::GetIfValid(p1);
01873 if (v == NULL) return CMD_ERROR;
01874
01875 CommandCost ret = CheckOwnership(v->owner);
01876 if (ret.Failed()) return ret;
01877
01878 if (p2 != 0) {
01879
01880
01881 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01882 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01883 }
01884 if (!HasBit(EngInfo(v->engine_type)->misc_flags, EF_RAIL_FLIPS)) return CMD_ERROR;
01885
01886 Train *front = v->First();
01887
01888 if (!front->IsStoppedInDepot()) {
01889 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01890 }
01891
01892 if (flags & DC_EXEC) {
01893 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01894
01895 front->ConsistChanged(false);
01896 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
01897 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
01898 SetWindowDirty(WC_VEHICLE_VIEW, front->index);
01899 SetWindowClassesDirty(WC_TRAINS_LIST);
01900 }
01901 } else {
01902
01903 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01904
01905 if (flags & DC_EXEC) {
01906
01907 if (v->current_order.IsType(OT_LOADING)) {
01908 const Vehicle *last = v;
01909 while (last->Next() != NULL) last = last->Next();
01910
01911
01912 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01913 v->LeaveStation();
01914 }
01915 }
01916
01917
01918 v->force_proceed = TFP_NONE;
01919 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01920
01921 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01922 ToggleBit(v->flags, VRF_REVERSING);
01923 } else {
01924 v->cur_speed = 0;
01925 v->SetLastSpeed();
01926 HideFillingPercent(&v->fill_percent_te_id);
01927 ReverseTrainDirection(v);
01928 }
01929 }
01930 }
01931 return CommandCost();
01932 }
01933
01943 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01944 {
01945 Train *t = Train::GetIfValid(p1);
01946 if (t == NULL) return CMD_ERROR;
01947
01948 CommandCost ret = CheckOwnership(t->owner);
01949 if (ret.Failed()) return ret;
01950
01951
01952 if (flags & DC_EXEC) {
01953
01954
01955
01956
01957
01958 t->force_proceed = t->force_proceed == TFP_SIGNAL ? TFP_NONE : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? TFP_STUCK : TFP_SIGNAL;
01959 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
01960 }
01961
01962 return CommandCost();
01963 }
01964
01972 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
01973 {
01974 assert(!(v->vehstatus & VS_CRASHED));
01975
01976 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
01977
01978 PBSTileInfo origin = FollowTrainReservation(v);
01979 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
01980
01981 switch (_settings_game.pf.pathfinder_for_trains) {
01982 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
01983 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
01984
01985 default: NOT_REACHED();
01986 }
01987 }
01988
01996 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
01997 {
01998 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
01999 if (tfdd.best_length == UINT_MAX) return false;
02000
02001 if (location != NULL) *location = tfdd.tile;
02002 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
02003 if (reverse != NULL) *reverse = tfdd.reverse;
02004
02005 return true;
02006 }
02007
02009 void Train::PlayLeaveStationSound() const
02010 {
02011 static const SoundFx sfx[] = {
02012 SND_04_TRAIN,
02013 SND_0A_TRAIN_HORN,
02014 SND_0A_TRAIN_HORN,
02015 SND_47_MAGLEV_2,
02016 SND_41_MAGLEV
02017 };
02018
02019 if (PlayVehicleSound(this, VSE_START)) return;
02020
02021 EngineID engtype = this->engine_type;
02022 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02023 }
02024
02029 static void CheckNextTrainTile(Train *v)
02030 {
02031
02032 if (_settings_game.pf.path_backoff_interval == 255) return;
02033
02034
02035 if (v->track == TRACK_BIT_DEPOT) return;
02036
02037 switch (v->current_order.GetType()) {
02038
02039 case OT_GOTO_DEPOT:
02040 if (v->tile == v->dest_tile) return;
02041 break;
02042
02043 case OT_GOTO_WAYPOINT:
02044
02045 if (IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
02046 break;
02047
02048 case OT_NOTHING:
02049 case OT_LEAVESTATION:
02050 case OT_LOADING:
02051
02052 if (v->GetNumOrders() > 0) return;
02053 break;
02054
02055 default:
02056 break;
02057 }
02058
02059 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02060
02061 Trackdir td = v->GetVehicleTrackdir();
02062
02063
02064 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02065 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02066 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02067
02068 CFollowTrackRail ft(v);
02069 if (!ft.Follow(v->tile, td)) return;
02070
02071 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02072
02073 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02074 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02075
02076 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02077 if (_settings_game.pf.forbid_90_deg) {
02078 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02079 }
02080 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02081 }
02082 }
02083 }
02084 }
02085
02091 static bool CheckTrainStayInDepot(Train *v)
02092 {
02093
02094 for (const Train *u = v; u != NULL; u = u->Next()) {
02095 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02096 }
02097
02098
02099 if (v->gcache.cached_power == 0) {
02100 v->vehstatus |= VS_STOPPED;
02101 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02102 return true;
02103 }
02104
02105 SigSegState seg_state;
02106
02107 if (v->force_proceed == TFP_NONE) {
02108
02109 if (++v->wait_counter < 37) {
02110 SetWindowClassesDirty(WC_TRAINS_LIST);
02111 return true;
02112 }
02113
02114 v->wait_counter = 0;
02115
02116 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02117 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02118
02119 SetWindowClassesDirty(WC_TRAINS_LIST);
02120 return true;
02121 }
02122 } else {
02123 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02124 }
02125
02126
02127 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02128
02129 if (HasDepotReservation(v->tile)) return true;
02130 SetDepotReservation(v->tile, true);
02131 VehicleEnterDepot(v);
02132 return true;
02133 }
02134
02135
02136 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == TFP_NONE) {
02137
02138 SetWindowClassesDirty(WC_TRAINS_LIST);
02139 MarkTrainAsStuck(v);
02140 return true;
02141 }
02142
02143 SetDepotReservation(v->tile, true);
02144 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02145
02146 VehicleServiceInDepot(v);
02147 SetWindowClassesDirty(WC_TRAINS_LIST);
02148 v->PlayLeaveStationSound();
02149
02150 v->track = TRACK_BIT_X;
02151 if (v->direction & 2) v->track = TRACK_BIT_Y;
02152
02153 v->vehstatus &= ~VS_HIDDEN;
02154 v->cur_speed = 0;
02155
02156 v->UpdateViewport(true, true);
02157 VehicleUpdatePosition(v);
02158 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02159 v->UpdateAcceleration();
02160 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02161
02162 return false;
02163 }
02164
02171 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02172 {
02173 DiagDirection dir = TrackdirToExitdir(track_dir);
02174
02175 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02176
02177 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02178 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02179
02180 if (TunnelBridgeIsFree(tile, end, v).Succeeded()) {
02181
02182 SetTunnelBridgeReservation(tile, false);
02183 SetTunnelBridgeReservation(end, false);
02184
02185 if (_settings_client.gui.show_track_reservation) {
02186 MarkTileDirtyByTile(tile);
02187 MarkTileDirtyByTile(end);
02188 }
02189 }
02190 }
02191 } else if (IsRailStationTile(tile)) {
02192 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02193
02194
02195 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02196 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02197 }
02198 } else {
02199
02200 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02201 }
02202 }
02203
02210 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02211 {
02212 assert(v->IsFrontEngine());
02213
02214 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02215 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02216 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02217 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02218
02219
02220 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02221
02222 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02223 while (ft.Follow(tile, td)) {
02224 tile = ft.m_new_tile;
02225 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02226 td = RemoveFirstTrackdir(&bits);
02227 assert(bits == TRACKDIR_BIT_NONE);
02228
02229 if (!IsValidTrackdir(td)) break;
02230
02231 if (IsTileType(tile, MP_RAILWAY)) {
02232 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02233
02234 UnreserveRailTrack(tile, TrackdirToTrack(td));
02235 break;
02236 }
02237 if (HasPbsSignalOnTrackdir(tile, td)) {
02238 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02239
02240 break;
02241 } else {
02242
02243 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02244 MarkTileDirtyByTile(tile);
02245 }
02246 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02247 break;
02248 }
02249 }
02250
02251
02252 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);
02253
02254 free_tile = true;
02255 }
02256 }
02257
02258 static const byte _initial_tile_subcoord[6][4][3] = {
02259 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02260 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02261 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02262 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02263 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02264 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02265 };
02266
02279 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool &path_found, bool do_track_reservation, PBSTileInfo *dest)
02280 {
02281 switch (_settings_game.pf.pathfinder_for_trains) {
02282 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02283 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02284
02285 default: NOT_REACHED();
02286 }
02287 }
02288
02294 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02295 {
02296 PBSTileInfo origin = FollowTrainReservation(v);
02297
02298 CFollowTrackRail ft(v);
02299
02300 TileIndex tile = origin.tile;
02301 Trackdir cur_td = origin.trackdir;
02302 while (ft.Follow(tile, cur_td)) {
02303 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02304
02305 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02306 }
02307
02308 if (_settings_game.pf.forbid_90_deg) {
02309 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02310 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02311 }
02312
02313
02314 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02315 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02316
02317
02318
02319
02320
02321
02322 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02323
02324
02325
02326 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02327
02328
02329 if (new_tracks != NULL) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02330 if (enterdir != NULL) *enterdir = ft.m_exitdir;
02331 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02332 }
02333
02334 tile = ft.m_new_tile;
02335 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02336
02337 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02338 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02339 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02340
02341 return PBSTileInfo(tile, cur_td, true);
02342 }
02343
02344 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02345 }
02346
02347 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02348
02349 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02350 }
02351
02352
02353 tile = origin.tile;
02354 cur_td = origin.trackdir;
02355 TileIndex stopped = ft.m_old_tile;
02356 Trackdir stopped_td = ft.m_old_td;
02357 while (tile != stopped || cur_td != stopped_td) {
02358 if (!ft.Follow(tile, cur_td)) break;
02359
02360 if (_settings_game.pf.forbid_90_deg) {
02361 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02362 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02363 }
02364 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02365
02366 tile = ft.m_new_tile;
02367 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02368
02369 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02370 }
02371
02372
02373 return PBSTileInfo();
02374 }
02375
02386 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02387 {
02388 switch (_settings_game.pf.pathfinder_for_trains) {
02389 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02390 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02391
02392 default: NOT_REACHED();
02393 }
02394 }
02395
02397 class VehicleOrderSaver {
02398 private:
02399 Train *v;
02400 Order old_order;
02401 TileIndex old_dest_tile;
02402 StationID old_last_station_visited;
02403 VehicleOrderID index;
02404 bool suppress_implicit_orders;
02405
02406 public:
02407 VehicleOrderSaver(Train *_v) :
02408 v(_v),
02409 old_order(_v->current_order),
02410 old_dest_tile(_v->dest_tile),
02411 old_last_station_visited(_v->last_station_visited),
02412 index(_v->cur_real_order_index),
02413 suppress_implicit_orders(HasBit(_v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS))
02414 {
02415 }
02416
02417 ~VehicleOrderSaver()
02418 {
02419 this->v->current_order = this->old_order;
02420 this->v->dest_tile = this->old_dest_tile;
02421 this->v->last_station_visited = this->old_last_station_visited;
02422 SB(this->v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS, 1, suppress_implicit_orders ? 1: 0);
02423 }
02424
02430 bool SwitchToNextOrder(bool skip_first)
02431 {
02432 if (this->v->GetNumOrders() == 0) return false;
02433
02434 if (skip_first) ++this->index;
02435
02436 int conditional_depth = 0;
02437
02438 do {
02439
02440 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02441
02442 Order *order = this->v->GetOrder(this->index);
02443 assert(order != NULL);
02444
02445 switch (order->GetType()) {
02446 case OT_GOTO_DEPOT:
02447
02448 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02449 case OT_GOTO_STATION:
02450 case OT_GOTO_WAYPOINT:
02451 this->v->current_order = *order;
02452 return UpdateOrderDest(this->v, order, 0, true);
02453 case OT_CONDITIONAL: {
02454 if (conditional_depth > this->v->GetNumOrders()) return false;
02455 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02456 if (next != INVALID_VEH_ORDER_ID) {
02457 conditional_depth++;
02458 this->index = next;
02459
02460 continue;
02461 }
02462 break;
02463 }
02464 default:
02465 break;
02466 }
02467
02468
02469 ++this->index;
02470 } while (this->index != this->v->cur_real_order_index);
02471
02472 return false;
02473 }
02474 };
02475
02476
02477 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02478 {
02479 Track best_track = INVALID_TRACK;
02480 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02481 bool changed_signal = false;
02482
02483 assert((tracks & ~TRACK_BIT_MASK) == 0);
02484
02485 if (got_reservation != NULL) *got_reservation = false;
02486
02487
02488 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02489
02490 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02491
02492
02493 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02494 Track track = FindFirstTrack(tracks);
02495
02496 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02497 do_track_reservation = true;
02498 changed_signal = true;
02499 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02500 } else if (!do_track_reservation) {
02501 return track;
02502 }
02503 best_track = track;
02504 }
02505
02506 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02507 DiagDirection dest_enterdir = enterdir;
02508 if (do_track_reservation) {
02509 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02510 if (res_dest.tile == INVALID_TILE) {
02511
02512 if (mark_stuck) MarkTrainAsStuck(v);
02513 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02514 return FindFirstTrack(tracks);
02515 }
02516 if (res_dest.okay) {
02517
02518 if (got_reservation != NULL) *got_reservation = true;
02519 if (changed_signal) MarkTileDirtyByTile(tile);
02520 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02521 return best_track;
02522 }
02523
02524
02525
02526
02527 CheckIfTrainNeedsService(v);
02528 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02529 }
02530
02531
02532 VehicleOrderSaver orders(v);
02533
02534
02535
02536
02537
02538
02539
02540 if (v->current_order.IsType(OT_LEAVESTATION)) {
02541 orders.SwitchToNextOrder(false);
02542 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02543 v->current_order.IsType(OT_GOTO_STATION) ?
02544 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02545 v->tile == v->dest_tile))) {
02546 orders.SwitchToNextOrder(true);
02547 }
02548
02549 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02550
02551 bool path_found = true;
02552 TileIndex new_tile = res_dest.tile;
02553
02554 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, path_found, do_track_reservation, &res_dest);
02555 if (new_tile == tile) best_track = next_track;
02556 v->HandlePathfindingResult(path_found);
02557 }
02558
02559
02560 if (!do_track_reservation) return best_track;
02561
02562
02563 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02564 if (mark_stuck) MarkTrainAsStuck(v);
02565 FreeTrainTrackReservation(v);
02566 return best_track;
02567 }
02568
02569
02570 if (res_dest.tile == INVALID_TILE) {
02571
02572 PBSTileInfo origin = FollowTrainReservation(v);
02573 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02574 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02575 best_track = FindFirstTrack(res);
02576 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02577 if (got_reservation != NULL) *got_reservation = true;
02578 if (changed_signal) MarkTileDirtyByTile(tile);
02579 } else {
02580 FreeTrainTrackReservation(v);
02581 if (mark_stuck) MarkTrainAsStuck(v);
02582 }
02583 return best_track;
02584 }
02585
02586 if (got_reservation != NULL) *got_reservation = true;
02587
02588
02589 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02590
02591 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02592 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02593 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02594 if (_settings_game.pf.forbid_90_deg) {
02595 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02596 }
02597
02598
02599 if (orders.SwitchToNextOrder(true)) {
02600 PBSTileInfo cur_dest;
02601 bool path_found;
02602 DoTrainPathfind(v, next_tile, exitdir, reachable, path_found, true, &cur_dest);
02603 if (cur_dest.tile != INVALID_TILE) {
02604 res_dest = cur_dest;
02605 if (res_dest.okay) continue;
02606
02607 FreeTrainTrackReservation(v);
02608 if (mark_stuck) MarkTrainAsStuck(v);
02609 if (got_reservation != NULL) *got_reservation = false;
02610 changed_signal = false;
02611 break;
02612 }
02613 }
02614
02615 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02616 FreeTrainTrackReservation(v);
02617 if (mark_stuck) MarkTrainAsStuck(v);
02618 if (got_reservation != NULL) *got_reservation = false;
02619 changed_signal = false;
02620 }
02621 break;
02622 }
02623
02624 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02625
02626 if (changed_signal) MarkTileDirtyByTile(tile);
02627
02628 return best_track;
02629 }
02630
02639 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02640 {
02641 assert(v->IsFrontEngine());
02642
02643
02644
02645
02646 if (v->track == TRACK_BIT_DEPOT) {
02647 if (HasDepotReservation(v->tile)) {
02648 if (mark_as_stuck) MarkTrainAsStuck(v);
02649 return false;
02650 } else {
02651
02652 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02653 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02654 }
02655 }
02656
02657 Vehicle *other_train = NULL;
02658 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02659
02660
02661
02662
02663
02664 if (other_train != NULL && other_train->index != v->index) {
02665 if (mark_as_stuck) MarkTrainAsStuck(v);
02666 return false;
02667 }
02668
02669 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02670
02671 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02672 ClrBit(v->flags, VRF_TRAIN_STUCK);
02673 return true;
02674 }
02675
02676
02677 if (v->track == TRACK_BIT_DEPOT) {
02678 SetDepotReservation(v->tile, true);
02679 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02680 }
02681
02682 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02683 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02684 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02685
02686 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02687
02688 bool res_made = false;
02689 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02690
02691 if (!res_made) {
02692
02693 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02694 return false;
02695 }
02696
02697 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02698 v->wait_counter = 0;
02699 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02700 }
02701 ClrBit(v->flags, VRF_TRAIN_STUCK);
02702 return true;
02703 }
02704
02705
02706 static bool CheckReverseTrain(const Train *v)
02707 {
02708 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02709 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02710 !(v->direction & 1)) {
02711 return false;
02712 }
02713
02714 assert(v->track != TRACK_BIT_NONE);
02715
02716 switch (_settings_game.pf.pathfinder_for_trains) {
02717 case VPF_NPF: return NPFTrainCheckReverse(v);
02718 case VPF_YAPF: return YapfTrainCheckReverse(v);
02719
02720 default: NOT_REACHED();
02721 }
02722 }
02723
02729 TileIndex Train::GetOrderStationLocation(StationID station)
02730 {
02731 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02732
02733 const Station *st = Station::Get(station);
02734 if (!(st->facilities & FACIL_TRAIN)) {
02735
02736 this->IncrementRealOrderIndex();
02737 return 0;
02738 }
02739
02740 return st->xy;
02741 }
02742
02744 void Train::MarkDirty()
02745 {
02746 Train *v = this;
02747 do {
02748 v->UpdateViewport(false, false);
02749 } while ((v = v->Next()) != NULL);
02750
02751
02752 this->CargoChanged();
02753 this->UpdateAcceleration();
02754 }
02755
02763 int Train::UpdateSpeed()
02764 {
02765 switch (_settings_game.vehicle.train_acceleration_model) {
02766 default: NOT_REACHED();
02767 case AM_ORIGINAL:
02768 return this->DoUpdateSpeed(this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2), 0, this->gcache.cached_max_track_speed);
02769
02770 case AM_REALISTIC:
02771 return this->DoUpdateSpeed(this->GetAcceleration(), this->GetAccelerationStatus() == AS_BRAKE ? 0 : 2, this->GetCurrentMaxSpeed());
02772 }
02773 }
02774
02780 static void TrainEnterStation(Train *v, StationID station)
02781 {
02782 v->last_station_visited = station;
02783
02784
02785 Station *st = Station::Get(station);
02786 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02787 st->had_vehicle_of_type |= HVOT_TRAIN;
02788 SetDParam(0, st->index);
02789 AddVehicleNewsItem(
02790 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02791 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
02792 v->index,
02793 st->index
02794 );
02795 AI::NewEvent(v->owner, new ScriptEventStationFirstVehicle(st->index, v->index));
02796 Game::NewEvent(new ScriptEventStationFirstVehicle(st->index, v->index));
02797 }
02798
02799 v->force_proceed = TFP_NONE;
02800 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02801
02802 v->BeginLoading();
02803
02804 TriggerStationAnimation(st, v->tile, SAT_TRAIN_ARRIVES);
02805 }
02806
02807
02808 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
02809 {
02810 return IsTileOwner(tile, v->owner) &&
02811 (!v->IsFrontEngine() || HasBit(v->compatible_railtypes, GetRailType(tile)));
02812 }
02813
02815 struct RailtypeSlowdownParams {
02816 byte small_turn;
02817 byte large_turn;
02818 byte z_up;
02819 byte z_down;
02820 };
02821
02823 static const RailtypeSlowdownParams _railtype_slowdown[] = {
02824
02825 {256 / 4, 256 / 2, 256 / 4, 2},
02826 {256 / 4, 256 / 2, 256 / 4, 2},
02827 {256 / 4, 256 / 2, 256 / 4, 2},
02828 {0, 256 / 2, 256 / 4, 2},
02829 };
02830
02836 static inline void AffectSpeedByZChange(Train *v, int old_z)
02837 {
02838 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
02839
02840 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
02841
02842 if (old_z < v->z_pos) {
02843 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
02844 } else {
02845 uint16 spd = v->cur_speed + rsp->z_down;
02846 if (spd <= v->gcache.cached_max_track_speed) v->cur_speed = spd;
02847 }
02848 }
02849
02850 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
02851 {
02852 if (IsTileType(tile, MP_RAILWAY) &&
02853 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
02854 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
02855 Trackdir trackdir = FindFirstTrackdir(tracks);
02856 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
02857
02858 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
02859 }
02860 }
02861 return false;
02862 }
02863
02865 void Train::ReserveTrackUnderConsist() const
02866 {
02867 for (const Train *u = this; u != NULL; u = u->Next()) {
02868 switch (u->track) {
02869 case TRACK_BIT_WORMHOLE:
02870 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
02871 break;
02872 case TRACK_BIT_DEPOT:
02873 break;
02874 default:
02875 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
02876 break;
02877 }
02878 }
02879 }
02880
02887 uint Train::Crash(bool flooded)
02888 {
02889 uint pass = 0;
02890 if (this->IsFrontEngine()) {
02891 pass += 2;
02892
02893
02894
02895 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
02896 for (const Train *v = this; v != NULL; v = v->Next()) {
02897 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
02898 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
02899
02900
02901 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
02902 }
02903 }
02904
02905
02906
02907 TileIndex crossing = TrainApproachingCrossingTile(this);
02908 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
02909
02910
02911 HideFillingPercent(&this->fill_percent_te_id);
02912 }
02913
02914 pass += this->GroundVehicleBase::Crash(flooded);
02915
02916 this->crash_anim_pos = flooded ? 4000 : 1;
02917 return pass;
02918 }
02919
02926 static uint TrainCrashed(Train *v)
02927 {
02928 uint num = 0;
02929
02930
02931 if (!(v->vehstatus & VS_CRASHED)) {
02932 num = v->Crash();
02933 AI::NewEvent(v->owner, new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02934 Game::NewEvent(new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02935 }
02936
02937
02938
02939 v->ReserveTrackUnderConsist();
02940
02941 return num;
02942 }
02943
02945 struct TrainCollideChecker {
02946 Train *v;
02947 uint num;
02948 };
02949
02956 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
02957 {
02958 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
02959
02960
02961 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
02962
02963
02964 if (v->owner != tcc->v->owner) return NULL;
02965
02966
02967 Train *coll = Train::From(v)->First();
02968
02969
02970 if (coll == tcc->v) return NULL;
02971
02972 int x_diff = v->x_pos - tcc->v->x_pos;
02973 int y_diff = v->y_pos - tcc->v->y_pos;
02974
02975
02976
02977
02978
02979 uint hash = (y_diff + 7) | (x_diff + 7);
02980 if (hash & ~15) return NULL;
02981
02982
02983 int min_diff = (Train::From(v)->gcache.cached_veh_length + 1) / 2 + (tcc->v->gcache.cached_veh_length + 1) / 2 - 1;
02984 if (x_diff * x_diff + y_diff * y_diff > min_diff * min_diff) return NULL;
02985
02986
02987 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
02988
02989
02990 tcc->num += TrainCrashed(tcc->v);
02991 tcc->num += TrainCrashed(coll);
02992
02993 return NULL;
02994 }
02995
03003 static bool CheckTrainCollision(Train *v)
03004 {
03005
03006 if (v->track == TRACK_BIT_DEPOT) return false;
03007
03008 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03009
03010 TrainCollideChecker tcc;
03011 tcc.v = v;
03012 tcc.num = 0;
03013
03014
03015 if (v->track == TRACK_BIT_WORMHOLE) {
03016 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03017 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03018 } else {
03019 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03020 }
03021
03022
03023 if (tcc.num == 0) return false;
03024
03025 SetDParam(0, tcc.num);
03026 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
03027 NS_ACCIDENT,
03028 v->index
03029 );
03030
03031 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03032 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03033 return true;
03034 }
03035
03036 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03037 {
03038 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03039
03040 Train *t = Train::From(v);
03041 DiagDirection exitdir = *(DiagDirection *)data;
03042
03043
03044 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03045
03046 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03047
03048 return t;
03049 }
03050
03058 bool TrainController(Train *v, Vehicle *nomove, bool reverse)
03059 {
03060 Train *first = v->First();
03061 Train *prev;
03062 bool direction_changed = false;
03063
03064
03065 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03066 DiagDirection enterdir = DIAGDIR_BEGIN;
03067 bool update_signals_crossing = false;
03068
03069 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03070 if (v->track != TRACK_BIT_WORMHOLE) {
03071
03072 if (gp.old_tile == gp.new_tile) {
03073
03074 if (v->track == TRACK_BIT_DEPOT) {
03075
03076 gp.x = v->x_pos;
03077 gp.y = v->y_pos;
03078 } else {
03079
03080
03081
03082 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v, reverse)) return false;
03083
03084 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03085 if (HasBit(r, VETS_CANNOT_ENTER)) {
03086 goto invalid_rail;
03087 }
03088 if (HasBit(r, VETS_ENTERED_STATION)) {
03089
03090 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03091 }
03092 }
03093 } else {
03094
03095
03096
03097 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03098 assert(IsValidDiagDirection(enterdir));
03099
03100
03101
03102 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03103 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03104
03105 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03106 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03107
03108 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03109 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03110
03111
03112 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03113 }
03114
03115 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03116
03117
03118
03119 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03120
03121 TrackBits chosen_track;
03122 if (prev == NULL) {
03123
03124
03125 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03126 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03127
03128 if (v->force_proceed != TFP_NONE && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03129
03130
03131
03132
03133 Trackdir dir = FindFirstTrackdir(trackdirbits);
03134 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03135 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03136
03137
03138 v->force_proceed = (v->force_proceed == TFP_SIGNAL) ? TFP_STUCK : TFP_NONE;
03139 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03140 }
03141 }
03142
03143
03144 if ((red_signals & chosen_track) && v->force_proceed == TFP_NONE) {
03145
03146 Trackdir i = FindFirstTrackdir(trackdirbits);
03147
03148
03149 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return false;
03150
03151 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03152 v->cur_speed = 0;
03153 v->subspeed = 0;
03154 v->progress = 255 - 100;
03155 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return false;
03156 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03157 v->cur_speed = 0;
03158 v->subspeed = 0;
03159 v->progress = 255 - 10;
03160 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03161 DiagDirection exitdir = TrackdirToExitdir(i);
03162 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03163
03164 exitdir = ReverseDiagDir(exitdir);
03165
03166
03167 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return false;
03168 }
03169 }
03170
03171
03172
03173
03174
03175 if (!_settings_game.pf.reverse_at_signals && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03176 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03177 v->wait_counter = 0;
03178 return false;
03179 }
03180 goto reverse_train_direction;
03181 } else {
03182 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03183 }
03184 } else {
03185
03186 if (prev->tile == gp.new_tile) {
03187
03188 if (prev->track == TRACK_BIT_WORMHOLE) {
03189
03190
03191 assert(IsTunnel(prev->tile));
03192 chosen_track = bits;
03193 } else {
03194 chosen_track = prev->track;
03195 }
03196 } else {
03197
03198
03199
03200
03201
03202
03203
03204 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03205 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03206 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03207 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03208 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03209 };
03210 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03211 assert(IsValidDiagDirection(exitdir));
03212 chosen_track = _connecting_track[enterdir][exitdir];
03213 }
03214 chosen_track &= bits;
03215 }
03216
03217
03218 assert(
03219 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03220 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03221 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03222
03223
03224 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03225 gp.x = (gp.x & ~0xF) | b[0];
03226 gp.y = (gp.y & ~0xF) | b[1];
03227 Direction chosen_dir = (Direction)b[2];
03228
03229
03230 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03231 if (HasBit(r, VETS_CANNOT_ENTER)) {
03232 goto invalid_rail;
03233 }
03234
03235 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03236 Track track = FindFirstTrack(chosen_track);
03237 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03238 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03239 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03240 MarkTileDirtyByTile(gp.new_tile);
03241 }
03242
03243
03244 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03245
03246 v->tile = gp.new_tile;
03247
03248 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03249 v->First()->RailtypeChanged();
03250 }
03251
03252 v->track = chosen_track;
03253 assert(v->track);
03254 }
03255
03256
03257
03258 update_signals_crossing = true;
03259
03260 if (chosen_dir != v->direction) {
03261 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03262 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03263 DirDiff diff = DirDifference(v->direction, chosen_dir);
03264 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03265 }
03266 direction_changed = true;
03267 v->direction = chosen_dir;
03268 }
03269
03270 if (v->IsFrontEngine()) {
03271 v->wait_counter = 0;
03272
03273
03274 TileIndex crossing = TrainApproachingCrossingTile(v);
03275 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03276
03277
03278 CheckNextTrainTile(v);
03279 }
03280
03281 if (HasBit(r, VETS_ENTERED_STATION)) {
03282
03283 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03284 }
03285 }
03286 } else {
03287
03288
03289
03290 if (!(v->vehstatus & VS_HIDDEN)) {
03291 Train *first = v->First();
03292 first->cur_speed = min(first->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03293 }
03294
03295 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03296
03297 if (v->IsFrontEngine()) {
03298 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03299 CheckNextTrainTile(v);
03300 }
03301
03302
03303 if (gp.old_tile == gp.new_tile) {
03304 gp.old_tile = GetOtherTunnelBridgeEnd(gp.old_tile);
03305 }
03306 } else {
03307 v->x_pos = gp.x;
03308 v->y_pos = gp.y;
03309 VehicleUpdatePosition(v);
03310 if ((v->vehstatus & VS_HIDDEN) == 0) VehicleUpdateViewport(v, true);
03311 continue;
03312 }
03313 }
03314
03315
03316 v->UpdateDeltaXY(v->direction);
03317
03318 v->x_pos = gp.x;
03319 v->y_pos = gp.y;
03320 VehicleUpdatePosition(v);
03321
03322
03323 int old_z = v->UpdateInclination(gp.new_tile != gp.old_tile, false);
03324
03325 if (prev == NULL) {
03326
03327 AffectSpeedByZChange(v, old_z);
03328 }
03329
03330 if (update_signals_crossing) {
03331 if (v->IsFrontEngine()) {
03332 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03333
03334
03335
03336
03337
03338
03339
03340
03341 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03342 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03343 !TryPathReserve(v)) {
03344 MarkTrainAsStuck(v);
03345 }
03346 }
03347 }
03348
03349
03350
03351 if (v->Next() == NULL) {
03352 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03353 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03354 }
03355 }
03356
03357
03358 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03359 }
03360
03361 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03362
03363 return true;
03364
03365 invalid_rail:
03366
03367 if (prev != NULL) error("Disconnecting train");
03368
03369 reverse_train_direction:
03370 if (reverse) {
03371 v->wait_counter = 0;
03372 v->cur_speed = 0;
03373 v->subspeed = 0;
03374 ReverseTrainDirection(v);
03375 }
03376
03377 return false;
03378 }
03379
03386 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03387 {
03388 TrackBits *trackbits = (TrackBits *)data;
03389
03390 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03391 TrackBits train_tbits = Train::From(v)->track;
03392 if (train_tbits == TRACK_BIT_WORMHOLE) {
03393
03394 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03395 } else if (train_tbits != TRACK_BIT_DEPOT) {
03396 *trackbits |= train_tbits;
03397 }
03398 }
03399
03400 return NULL;
03401 }
03402
03410 static void DeleteLastWagon(Train *v)
03411 {
03412 Train *first = v->First();
03413
03414
03415
03416
03417 Train *u = v;
03418 for (; v->Next() != NULL; v = v->Next()) u = v;
03419 u->SetNext(NULL);
03420
03421 if (first != v) {
03422
03423 first->ConsistChanged(false);
03424
03425
03426 if (first->track == TRACK_BIT_DEPOT) {
03427 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03428 }
03429 }
03430
03431
03432 TrackBits trackbits = v->track;
03433 TileIndex tile = v->tile;
03434 Owner owner = v->owner;
03435
03436 delete v;
03437 v = NULL;
03438
03439 if (trackbits == TRACK_BIT_WORMHOLE) {
03440
03441 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03442 }
03443
03444 Track track = TrackBitsToTrack(trackbits);
03445 if (HasReservedTracks(tile, trackbits)) {
03446 UnreserveRailTrack(tile, track);
03447
03448
03449 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03450 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03451
03452
03453 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03454 Track t;
03455 FOR_EACH_SET_TRACK(t, remaining_trackbits) TryReserveRailTrack(tile, t);
03456 }
03457
03458
03459 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03460
03461
03462 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03463 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03464 } else {
03465 SetSignalsOnBothDir(tile, track, owner);
03466 }
03467 }
03468
03473 static void ChangeTrainDirRandomly(Train *v)
03474 {
03475 static const DirDiff delta[] = {
03476 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03477 };
03478
03479 do {
03480
03481 if (!(v->vehstatus & VS_HIDDEN)) {
03482 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03483 v->UpdateDeltaXY(v->direction);
03484 v->cur_image = v->GetImage(v->direction, EIT_ON_MAP);
03485
03486
03487
03488 if (v->track != TRACK_BIT_WORMHOLE) {
03489 VehicleUpdatePosition(v);
03490 v->UpdateInclination(false, false);
03491 }
03492 }
03493 } while ((v = v->Next()) != NULL);
03494 }
03495
03501 static bool HandleCrashedTrain(Train *v)
03502 {
03503 int state = ++v->crash_anim_pos;
03504
03505 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03506 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03507 }
03508
03509 uint32 r;
03510 if (state <= 200 && Chance16R(1, 7, r)) {
03511 int index = (r * 10 >> 16);
03512
03513 Vehicle *u = v;
03514 do {
03515 if (--index < 0) {
03516 r = Random();
03517
03518 CreateEffectVehicleRel(u,
03519 GB(r, 8, 3) + 2,
03520 GB(r, 16, 3) + 2,
03521 GB(r, 0, 3) + 5,
03522 EV_EXPLOSION_SMALL);
03523 break;
03524 }
03525 } while ((u = u->Next()) != NULL);
03526 }
03527
03528 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03529
03530 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03531 bool ret = v->Next() != NULL;
03532 DeleteLastWagon(v);
03533 return ret;
03534 }
03535
03536 return true;
03537 }
03538
03540 static const uint16 _breakdown_speeds[16] = {
03541 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03542 };
03543
03544
03553 static bool TrainApproachingLineEnd(Train *v, bool signal, bool reverse)
03554 {
03555
03556 uint x = v->x_pos & 0xF;
03557 uint y = v->y_pos & 0xF;
03558
03559
03560
03561 switch (v->direction) {
03562 case DIR_N : x = ~x + ~y + 25; break;
03563 case DIR_NW: x = y;
03564 case DIR_NE: x = ~x + 16; break;
03565 case DIR_E : x = ~x + y + 9; break;
03566 case DIR_SE: x = y; break;
03567 case DIR_S : x = x + y - 7; break;
03568 case DIR_W : x = ~y + x + 9; break;
03569 default: break;
03570 }
03571
03572
03573
03574
03575
03576
03577 if (!signal && x + (v->gcache.cached_veh_length + 1) / 2 * (IsDiagonalDirection(v->direction) ? 1 : 2) >= TILE_SIZE) {
03578
03579 v->cur_speed = 0;
03580 if (reverse) ReverseTrainDirection(v);
03581 return false;
03582 }
03583
03584
03585 v->vehstatus |= VS_TRAIN_SLOWING;
03586 uint16 break_speed = _breakdown_speeds[x & 0xF];
03587 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03588
03589 return true;
03590 }
03591
03592
03598 static bool TrainCanLeaveTile(const Train *v)
03599 {
03600
03601 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03602
03603 TileIndex tile = v->tile;
03604
03605
03606 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03607 DiagDirection dir = GetTunnelBridgeDirection(tile);
03608 if (DiagDirToDir(dir) == v->direction) return false;
03609 }
03610
03611
03612 if (IsRailDepotTile(tile)) {
03613 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03614 if (DiagDirToDir(dir) == v->direction) return false;
03615 }
03616
03617 return true;
03618 }
03619
03620
03628 static TileIndex TrainApproachingCrossingTile(const Train *v)
03629 {
03630 assert(v->IsFrontEngine());
03631 assert(!(v->vehstatus & VS_CRASHED));
03632
03633 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03634
03635 DiagDirection dir = TrainExitDir(v->direction, v->track);
03636 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03637
03638
03639 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03640 !CheckCompatibleRail(v, tile)) {
03641 return INVALID_TILE;
03642 }
03643
03644 return tile;
03645 }
03646
03647
03655 static bool TrainCheckIfLineEnds(Train *v, bool reverse)
03656 {
03657
03658
03659 int t = v->breakdown_ctr;
03660 if (t > 1) {
03661 v->vehstatus |= VS_TRAIN_SLOWING;
03662
03663 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03664 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03665 } else {
03666 v->vehstatus &= ~VS_TRAIN_SLOWING;
03667 }
03668
03669 if (!TrainCanLeaveTile(v)) return true;
03670
03671
03672 DiagDirection dir = TrainExitDir(v->direction, v->track);
03673
03674 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03675
03676
03677 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03678 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03679
03680 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03681 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03682
03683
03684
03685
03686 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03687 if (_settings_game.pf.forbid_90_deg) {
03688 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03689 }
03690
03691
03692 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03693 return TrainApproachingLineEnd(v, false, reverse);
03694 }
03695
03696
03697 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true, reverse);
03698
03699
03700 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03701
03702 return true;
03703 }
03704
03705
03706 static bool TrainLocoHandler(Train *v, bool mode)
03707 {
03708
03709 if (v->vehstatus & VS_CRASHED) {
03710 return mode ? true : HandleCrashedTrain(v);
03711 }
03712
03713 if (v->force_proceed != TFP_NONE) {
03714 ClrBit(v->flags, VRF_TRAIN_STUCK);
03715 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03716 }
03717
03718
03719 if (v->HandleBreakdown()) return true;
03720
03721 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03722 ReverseTrainDirection(v);
03723 }
03724
03725
03726 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03727
03728 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03729 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03730 v->wait_counter = 0;
03731 v->cur_speed = 0;
03732 v->subspeed = 0;
03733 ClrBit(v->flags, VRF_LEAVING_STATION);
03734 ReverseTrainDirection(v);
03735 return true;
03736 } else if (HasBit(v->flags, VRF_LEAVING_STATION)) {
03737
03738
03739
03740 DiagDirection dir = TrainExitDir(v->direction, v->track);
03741 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
03742
03743 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
03744 TryPathReserve(v, true, true);
03745 }
03746 ClrBit(v->flags, VRF_LEAVING_STATION);
03747 }
03748
03749 v->HandleLoading(mode);
03750
03751 if (v->current_order.IsType(OT_LOADING)) return true;
03752
03753 if (CheckTrainStayInDepot(v)) return true;
03754
03755 if (!mode) v->ShowVisualEffect();
03756
03757
03758 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03759 CheckNextTrainTile(v);
03760 }
03761
03762
03763 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03764 ++v->wait_counter;
03765
03766
03767 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.reverse_at_signals;
03768
03769 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == TFP_NONE) return true;
03770 if (!TryPathReserve(v)) {
03771
03772 if (turn_around) ReverseTrainDirection(v);
03773
03774 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03775
03776 if (_settings_client.gui.lost_vehicle_warn && v->owner == _local_company) {
03777 SetDParam(0, v->index);
03778 AddVehicleNewsItem(
03779 STR_NEWS_TRAIN_IS_STUCK,
03780 NS_ADVICE,
03781 v->index
03782 );
03783 }
03784 v->wait_counter = 0;
03785 }
03786
03787 if (v->force_proceed == TFP_NONE) return true;
03788 ClrBit(v->flags, VRF_TRAIN_STUCK);
03789 v->wait_counter = 0;
03790 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03791 }
03792 }
03793
03794 if (v->current_order.IsType(OT_LEAVESTATION)) {
03795 v->current_order.Free();
03796 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03797 return true;
03798 }
03799
03800 int j = v->UpdateSpeed();
03801
03802
03803 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
03804
03805 v->force_proceed = TFP_NONE;
03806 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03807 }
03808
03809 int adv_spd = v->GetAdvanceDistance();
03810 if (j < adv_spd) {
03811
03812 if (v->cur_speed == 0) v->SetLastSpeed();
03813 } else {
03814 TrainCheckIfLineEnds(v);
03815
03816 for (;;) {
03817 j -= adv_spd;
03818 TrainController(v, NULL);
03819
03820 if (CheckTrainCollision(v)) break;
03821
03822 adv_spd = v->GetAdvanceDistance();
03823
03824
03825 if (j < adv_spd || v->cur_speed == 0) break;
03826
03827 OrderType order_type = v->current_order.GetType();
03828
03829 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
03830 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
03831 IsTileType(v->tile, MP_STATION) &&
03832 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
03833 ProcessOrders(v);
03834 }
03835 }
03836 v->SetLastSpeed();
03837 }
03838
03839 for (Train *u = v; u != NULL; u = u->Next()) {
03840 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
03841
03842 u->UpdateViewport(false, false);
03843 }
03844
03845 if (v->progress == 0) v->progress = j;
03846
03847 return true;
03848 }
03849
03854 Money Train::GetRunningCost() const
03855 {
03856 Money cost = 0;
03857 const Train *v = this;
03858
03859 do {
03860 const Engine *e = v->GetEngine();
03861 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
03862
03863 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
03864 if (cost_factor == 0) continue;
03865
03866
03867 if (v->IsMultiheaded()) cost_factor /= 2;
03868
03869 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->GetGRF());
03870 } while ((v = v->GetNextVehicle()) != NULL);
03871
03872 return cost;
03873 }
03874
03879 bool Train::Tick()
03880 {
03881 this->tick_counter++;
03882
03883 if (this->IsFrontEngine()) {
03884 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
03885
03886 this->current_order_time++;
03887
03888 if (!TrainLocoHandler(this, false)) return false;
03889
03890 return TrainLocoHandler(this, true);
03891 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
03892
03893 if (++this->crash_anim_pos >= 4400) {
03894 delete this;
03895 return false;
03896 }
03897 }
03898
03899 return true;
03900 }
03901
03906 static void CheckIfTrainNeedsService(Train *v)
03907 {
03908 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
03909 if (v->IsInDepot()) {
03910 VehicleServiceInDepot(v);
03911 return;
03912 }
03913
03914 uint max_penalty;
03915 switch (_settings_game.pf.pathfinder_for_trains) {
03916 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
03917 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
03918 default: NOT_REACHED();
03919 }
03920
03921 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
03922
03923 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
03924 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
03925
03926
03927
03928 v->current_order.MakeDummy();
03929 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03930 }
03931 return;
03932 }
03933
03934 DepotID depot = GetDepotIndex(tfdd.tile);
03935
03936 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
03937 v->current_order.GetDestination() != depot &&
03938 !Chance16(3, 16)) {
03939 return;
03940 }
03941
03942 SetBit(v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
03943 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
03944 v->dest_tile = tfdd.tile;
03945 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03946 }
03947
03949 void Train::OnNewDay()
03950 {
03951 AgeVehicle(this);
03952
03953 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
03954
03955 if (this->IsFrontEngine()) {
03956 CheckVehicleBreakdown(this);
03957
03958 CheckIfTrainNeedsService(this);
03959
03960 CheckOrders(this);
03961
03962
03963 if (this->current_order.IsType(OT_GOTO_STATION)) {
03964 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
03965 if (tile != INVALID_TILE) this->dest_tile = tile;
03966 }
03967
03968 if (this->running_ticks != 0) {
03969
03970 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
03971
03972 this->profit_this_year -= cost.GetCost();
03973 this->running_ticks = 0;
03974
03975 SubtractMoneyFromCompanyFract(this->owner, cost);
03976
03977 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
03978 SetWindowClassesDirty(WC_TRAINS_LIST);
03979 }
03980 }
03981 }
03982
03987 Trackdir Train::GetVehicleTrackdir() const
03988 {
03989 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
03990
03991 if (this->track == TRACK_BIT_DEPOT) {
03992
03993 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
03994 }
03995
03996 if (this->track == TRACK_BIT_WORMHOLE) {
03997
03998 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
03999 }
04000
04001 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
04002 }