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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
00121 void Train::ConsistChanged(bool same_length)
00122 {
00123 uint16 max_speed = UINT16_MAX;
00124
00125 assert(this->IsFrontEngine() || this->IsFreeWagon());
00126
00127 const RailVehicleInfo *rvi_v = RailVehInfo(this->engine_type);
00128 EngineID first_engine = this->IsFrontEngine() ? this->engine_type : INVALID_ENGINE;
00129 this->gcache.cached_total_length = 0;
00130 this->compatible_railtypes = RAILTYPES_NONE;
00131
00132 bool train_can_tilt = true;
00133
00134 for (Train *u = this; u != NULL; u = u->Next()) {
00135 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00136
00137
00138 assert(u->First() == this);
00139
00140
00141 u->gcache.first_engine = this == u ? INVALID_ENGINE : first_engine;
00142 u->railtype = rvi_u->railtype;
00143
00144 if (u->IsEngine()) first_engine = u->engine_type;
00145
00146
00147 u->tcache.user_def_data = rvi_u->user_def_data;
00148 this->InvalidateNewGRFCache();
00149 u->InvalidateNewGRFCache();
00150 }
00151
00152 for (Train *u = this; u != NULL; u = u->Next()) {
00153
00154 u->tcache.user_def_data = GetVehicleProperty(u, PROP_TRAIN_USER_DATA, u->tcache.user_def_data);
00155 this->InvalidateNewGRFCache();
00156 u->InvalidateNewGRFCache();
00157 }
00158
00159 for (Train *u = this; u != NULL; u = u->Next()) {
00160 const Engine *e_u = u->GetEngine();
00161 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00162
00163 if (!HasBit(e_u->info.misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00164
00165
00166 u->tcache.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->gcache.first_engine);
00167
00168
00169 u->colourmap = PAL_NONE;
00170
00171
00172 u->UpdateVisualEffect(true);
00173
00174 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00175 UsesWagonOverride(u) && !HasBit(u->vcache.cached_vis_effect, VE_DISABLE_WAGON_POWER)) {
00176
00177 SetBit(u->flags, VRF_POWEREDWAGON);
00178 } else {
00179 ClrBit(u->flags, VRF_POWEREDWAGON);
00180 }
00181
00182 if (!u->IsArticulatedPart()) {
00183
00184
00185 if (rvi_u->power > 0) {
00186 this->compatible_railtypes |= GetRailTypeInfo(u->railtype)->powered_railtypes;
00187 }
00188
00189
00190
00191 if (HasBit(u->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00192 u->railtype = RAILTYPE_RAIL;
00193 u->compatible_railtypes |= RAILTYPES_RAIL;
00194 }
00195
00196
00197 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00198 uint16 speed = GetVehicleProperty(u, PROP_TRAIN_SPEED, rvi_u->max_speed);
00199 if (speed != 0) max_speed = min(speed, max_speed);
00200 }
00201 }
00202
00203 u->cargo_cap = e_u->DetermineCapacity(u);
00204 u->vcache.cached_cargo_age_period = GetVehicleProperty(u, PROP_TRAIN_CARGO_AGE_PERIOD, e_u->info.cargo_age_period);
00205
00206
00207 uint16 veh_len = CALLBACK_FAILED;
00208 if (e_u->GetGRF() != NULL && e_u->GetGRF()->grf_version >= 8) {
00209
00210 veh_len = GetVehicleProperty(u, PROP_TRAIN_SHORTEN_FACTOR, CALLBACK_FAILED);
00211
00212 if (veh_len != CALLBACK_FAILED && veh_len >= VEHICLE_LENGTH) {
00213 ErrorUnknownCallbackResult(e_u->GetGRFID(), CBID_VEHICLE_LENGTH, veh_len);
00214 }
00215 } else if (HasBit(e_u->info.callback_mask, CBM_VEHICLE_LENGTH)) {
00216
00217 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00218 }
00219 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00220 veh_len = VEHICLE_LENGTH - Clamp(veh_len, 0, VEHICLE_LENGTH - 1);
00221
00222
00223 if (same_length && veh_len != u->gcache.cached_veh_length) VehicleLengthChanged(u);
00224
00225
00226 if (!same_length) u->gcache.cached_veh_length = veh_len;
00227
00228 this->gcache.cached_total_length += u->gcache.cached_veh_length;
00229 this->InvalidateNewGRFCache();
00230 u->InvalidateNewGRFCache();
00231 }
00232
00233
00234 this->vcache.cached_max_speed = max_speed;
00235 this->tcache.cached_tilt = train_can_tilt;
00236 this->tcache.cached_max_curve_speed = this->GetCurveSpeedLimit();
00237
00238
00239 this->CargoChanged();
00240
00241 if (this->IsFrontEngine()) {
00242 this->UpdateAcceleration();
00243 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00244 InvalidateWindowData(WC_VEHICLE_REFIT, this->index);
00245 }
00246 }
00247
00258 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length)
00259 {
00260 const Station *st = Station::Get(station_id);
00261 *station_ahead = st->GetPlatformLength(tile, DirToDiagDir(v->direction)) * TILE_SIZE;
00262 *station_length = st->GetPlatformLength(tile) * TILE_SIZE;
00263
00264
00265
00266 OrderStopLocation osl = OSL_PLATFORM_MIDDLE;
00267 if (v->gcache.cached_total_length >= *station_length) {
00268
00269 osl = OSL_PLATFORM_FAR_END;
00270 } else if (v->current_order.IsType(OT_GOTO_STATION) && v->current_order.GetDestination() == station_id) {
00271 osl = v->current_order.GetStopLocation();
00272 }
00273
00274
00275 int stop;
00276 switch (osl) {
00277 default: NOT_REACHED();
00278
00279 case OSL_PLATFORM_NEAR_END:
00280 stop = v->gcache.cached_total_length;
00281 break;
00282
00283 case OSL_PLATFORM_MIDDLE:
00284 stop = *station_length - (*station_length - v->gcache.cached_total_length) / 2;
00285 break;
00286
00287 case OSL_PLATFORM_FAR_END:
00288 stop = *station_length;
00289 break;
00290 }
00291
00292
00293
00294 return stop - (v->gcache.cached_veh_length + 1) / 2;
00295 }
00296
00297
00302 int Train::GetCurveSpeedLimit() const
00303 {
00304 assert(this->First() == this);
00305
00306 static const int absolute_max_speed = UINT16_MAX;
00307 int max_speed = absolute_max_speed;
00308
00309 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return max_speed;
00310
00311 int curvecount[2] = {0, 0};
00312
00313
00314 int numcurve = 0;
00315 int sum = 0;
00316 int pos = 0;
00317 int lastpos = -1;
00318 for (const Vehicle *u = this; u->Next() != NULL; u = u->Next(), pos++) {
00319 Direction this_dir = u->direction;
00320 Direction next_dir = u->Next()->direction;
00321
00322 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00323 if (dirdiff == DIRDIFF_SAME) continue;
00324
00325 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00326 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00327 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00328 if (lastpos != -1) {
00329 numcurve++;
00330 sum += pos - lastpos;
00331 if (pos - lastpos == 1 && max_speed > 88) {
00332 max_speed = 88;
00333 }
00334 }
00335 lastpos = pos;
00336 }
00337
00338
00339 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00340 max_speed = 61;
00341 }
00342 }
00343
00344 if (numcurve > 0 && max_speed > 88) {
00345 if (curvecount[0] == 1 && curvecount[1] == 1) {
00346 max_speed = absolute_max_speed;
00347 } else {
00348 sum /= numcurve;
00349 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00350 }
00351 }
00352
00353 if (max_speed != absolute_max_speed) {
00354
00355 const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00356 max_speed += (max_speed / 2) * rti->curve_speed;
00357
00358 if (this->tcache.cached_tilt) {
00359
00360 max_speed += max_speed / 5;
00361 }
00362 }
00363
00364 return max_speed;
00365 }
00366
00371 int Train::GetCurrentMaxSpeed() const
00372 {
00373 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return min(this->gcache.cached_max_track_speed, this->current_order.max_speed);
00374
00375 int max_speed = this->tcache.cached_max_curve_speed;
00376 assert(max_speed == this->GetCurveSpeedLimit());
00377
00378 if (IsRailStationTile(this->tile)) {
00379 StationID sid = GetStationIndex(this->tile);
00380 if (this->current_order.ShouldStopAtStation(this, sid)) {
00381 int station_ahead;
00382 int station_length;
00383 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00384
00385
00386
00387 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00388
00389 if (distance_to_go > 0) {
00390 int st_max_speed = 120;
00391
00392 int delta_v = this->cur_speed / (distance_to_go + 1);
00393 if (max_speed > (this->cur_speed - delta_v)) {
00394 st_max_speed = this->cur_speed - (delta_v / 10);
00395 }
00396
00397 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00398 max_speed = min(max_speed, st_max_speed);
00399 }
00400 }
00401 }
00402
00403 for (const Train *u = this; u != NULL; u = u->Next()) {
00404 if (u->track == TRACK_BIT_DEPOT) {
00405 max_speed = min(max_speed, 61);
00406 break;
00407 }
00408 }
00409
00410 max_speed = min(max_speed, this->current_order.max_speed);
00411 return min(max_speed, this->gcache.cached_max_track_speed);
00412 }
00413
00415 void Train::UpdateAcceleration()
00416 {
00417 assert(this->IsFrontEngine());
00418
00419 uint power = this->gcache.cached_power;
00420 uint weight = this->gcache.cached_weight;
00421 assert(weight != 0);
00422 this->acceleration = Clamp(power / weight * 4, 1, 255);
00423 }
00424
00430 int Train::GetDisplayImageWidth(Point *offset) const
00431 {
00432 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00433 int vehicle_pitch = 0;
00434
00435 const Engine *e = this->GetEngine();
00436 if (e->GetGRF() != NULL && is_custom_sprite(e->u.rail.image_index)) {
00437 reference_width = e->GetGRF()->traininfo_vehicle_width;
00438 vehicle_pitch = e->GetGRF()->traininfo_vehicle_pitch;
00439 }
00440
00441 if (offset != NULL) {
00442 offset->x = reference_width / 2;
00443 offset->y = vehicle_pitch;
00444 }
00445 return this->gcache.cached_veh_length * reference_width / VEHICLE_LENGTH;
00446 }
00447
00448 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00449 {
00450 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00451 }
00452
00459 SpriteID Train::GetImage(Direction direction, EngineImageType image_type) const
00460 {
00461 uint8 spritenum = this->spritenum;
00462 SpriteID sprite;
00463
00464 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00465
00466 if (is_custom_sprite(spritenum)) {
00467 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)), image_type);
00468 if (sprite != 0) return sprite;
00469
00470 spritenum = this->GetEngine()->original_image_index;
00471 }
00472
00473 sprite = GetDefaultTrainSprite(spritenum, direction);
00474
00475 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00476
00477 return sprite;
00478 }
00479
00480 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y, EngineImageType image_type)
00481 {
00482 const Engine *e = Engine::Get(engine);
00483 Direction dir = rear_head ? DIR_E : DIR_W;
00484 uint8 spritenum = e->u.rail.image_index;
00485
00486 if (is_custom_sprite(spritenum)) {
00487 SpriteID sprite = GetCustomVehicleIcon(engine, dir, image_type);
00488 if (sprite != 0) {
00489 if (e->GetGRF() != NULL) {
00490 y += e->GetGRF()->traininfo_vehicle_pitch;
00491 }
00492 return sprite;
00493 }
00494
00495 spritenum = Engine::Get(engine)->original_image_index;
00496 }
00497
00498 if (rear_head) spritenum++;
00499
00500 return GetDefaultTrainSprite(spritenum, DIR_W);
00501 }
00502
00503 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal, EngineImageType image_type)
00504 {
00505 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00506 int yf = y;
00507 int yr = y;
00508
00509 SpriteID spritef = GetRailIcon(engine, false, yf, image_type);
00510 SpriteID spriter = GetRailIcon(engine, true, yr, image_type);
00511 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00512 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00513
00514 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);
00515
00516 DrawSprite(spritef, pal, preferred_x - 14, yf);
00517 DrawSprite(spriter, pal, preferred_x + 15, yr);
00518 } else {
00519 SpriteID sprite = GetRailIcon(engine, false, y, image_type);
00520 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00521 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));
00522 DrawSprite(sprite, pal, preferred_x, y);
00523 }
00524 }
00525
00534 static CommandCost CmdBuildRailWagon(TileIndex tile, DoCommandFlag flags, const Engine *e, Vehicle **ret)
00535 {
00536 const RailVehicleInfo *rvi = &e->u.rail;
00537
00538
00539 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00540
00541 if (flags & DC_EXEC) {
00542 Train *v = new Train();
00543 *ret = v;
00544 v->spritenum = rvi->image_index;
00545
00546 v->engine_type = e->index;
00547 v->gcache.first_engine = INVALID_ENGINE;
00548
00549 DiagDirection dir = GetRailDepotDirection(tile);
00550
00551 v->direction = DiagDirToDir(dir);
00552 v->tile = tile;
00553
00554 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00555 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00556
00557 v->x_pos = x;
00558 v->y_pos = y;
00559 v->z_pos = GetSlopePixelZ(x, y);
00560 v->owner = _current_company;
00561 v->track = TRACK_BIT_DEPOT;
00562 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00563
00564 v->SetWagon();
00565
00566 v->SetFreeWagon();
00567 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00568
00569 v->cargo_type = e->GetDefaultCargoType();
00570 v->cargo_cap = rvi->capacity;
00571
00572 v->railtype = rvi->railtype;
00573
00574 v->build_year = _cur_year;
00575 v->cur_image = SPR_IMG_QUERY;
00576 v->random_bits = VehicleRandomBits();
00577
00578 v->group_id = DEFAULT_GROUP;
00579
00580 AddArticulatedParts(v);
00581
00582 _new_vehicle_id = v->index;
00583
00584 VehicleUpdatePosition(v);
00585 v->First()->ConsistChanged(false);
00586 UpdateTrainGroupID(v->First());
00587
00588 CheckConsistencyOfArticulatedVehicle(v);
00589
00590
00591 Train *w;
00592 FOR_ALL_TRAINS(w) {
00593 if (w->tile == tile &&
00594 w->IsFreeWagon() &&
00595 w->engine_type == e->index &&
00596 w->First() != v &&
00597 !(w->vehstatus & VS_CRASHED)) {
00598 DoCommand(0, v->index | 1 << 20, w->Last()->index, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00599 break;
00600 }
00601 }
00602 }
00603
00604 return CommandCost();
00605 }
00606
00608 static void NormalizeTrainVehInDepot(const Train *u)
00609 {
00610 const Train *v;
00611 FOR_ALL_TRAINS(v) {
00612 if (v->IsFreeWagon() && v->tile == u->tile &&
00613 v->track == TRACK_BIT_DEPOT) {
00614 if (DoCommand(0, v->index | 1 << 20, u->index, DC_EXEC,
00615 CMD_MOVE_RAIL_VEHICLE).Failed())
00616 break;
00617 }
00618 }
00619 }
00620
00621 static void AddRearEngineToMultiheadedTrain(Train *v)
00622 {
00623 Train *u = new Train();
00624 v->value >>= 1;
00625 u->value = v->value;
00626 u->direction = v->direction;
00627 u->owner = v->owner;
00628 u->tile = v->tile;
00629 u->x_pos = v->x_pos;
00630 u->y_pos = v->y_pos;
00631 u->z_pos = v->z_pos;
00632 u->track = TRACK_BIT_DEPOT;
00633 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00634 u->spritenum = v->spritenum + 1;
00635 u->cargo_type = v->cargo_type;
00636 u->cargo_subtype = v->cargo_subtype;
00637 u->cargo_cap = v->cargo_cap;
00638 u->railtype = v->railtype;
00639 u->engine_type = v->engine_type;
00640 u->build_year = v->build_year;
00641 u->cur_image = SPR_IMG_QUERY;
00642 u->random_bits = VehicleRandomBits();
00643 v->SetMultiheaded();
00644 u->SetMultiheaded();
00645 v->SetNext(u);
00646 VehicleUpdatePosition(u);
00647
00648
00649 v->other_multiheaded_part = u;
00650 u->other_multiheaded_part = v;
00651 }
00652
00662 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, const Engine *e, uint16 data, Vehicle **ret)
00663 {
00664 const RailVehicleInfo *rvi = &e->u.rail;
00665
00666 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(tile, flags, e, ret);
00667
00668
00669
00670 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00671
00672 if (flags & DC_EXEC) {
00673 DiagDirection dir = GetRailDepotDirection(tile);
00674 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00675 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00676
00677 Train *v = new Train();
00678 *ret = v;
00679 v->direction = DiagDirToDir(dir);
00680 v->tile = tile;
00681 v->owner = _current_company;
00682 v->x_pos = x;
00683 v->y_pos = y;
00684 v->z_pos = GetSlopePixelZ(x, y);
00685 v->track = TRACK_BIT_DEPOT;
00686 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00687 v->spritenum = rvi->image_index;
00688 v->cargo_type = e->GetDefaultCargoType();
00689 v->cargo_cap = rvi->capacity;
00690 v->last_station_visited = INVALID_STATION;
00691 v->last_loading_station = INVALID_STATION;
00692
00693 v->engine_type = e->index;
00694 v->gcache.first_engine = INVALID_ENGINE;
00695
00696 v->reliability = e->reliability;
00697 v->reliability_spd_dec = e->reliability_spd_dec;
00698 v->max_age = e->GetLifeLengthInDays();
00699
00700 v->railtype = rvi->railtype;
00701 _new_vehicle_id = v->index;
00702
00703 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00704 v->date_of_last_service = _date;
00705 v->build_year = _cur_year;
00706 v->cur_image = SPR_IMG_QUERY;
00707 v->random_bits = VehicleRandomBits();
00708
00709 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00710
00711 v->group_id = DEFAULT_GROUP;
00712
00713 v->SetFrontEngine();
00714 v->SetEngine();
00715
00716 VehicleUpdatePosition(v);
00717
00718 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00719 AddRearEngineToMultiheadedTrain(v);
00720 } else {
00721 AddArticulatedParts(v);
00722 }
00723
00724 v->ConsistChanged(false);
00725 UpdateTrainGroupID(v);
00726
00727 if (!HasBit(data, 0) && !(flags & DC_AUTOREPLACE)) {
00728 NormalizeTrainVehInDepot(v);
00729 }
00730
00731 CheckConsistencyOfArticulatedVehicle(v);
00732 }
00733
00734 return CommandCost();
00735 }
00736
00737 static Train *FindGoodVehiclePos(const Train *src)
00738 {
00739 EngineID eng = src->engine_type;
00740 TileIndex tile = src->tile;
00741
00742 Train *dst;
00743 FOR_ALL_TRAINS(dst) {
00744 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00745
00746 Train *t = dst;
00747 while (t->engine_type == eng) {
00748 t = t->Next();
00749 if (t == NULL) return dst;
00750 }
00751 }
00752 }
00753
00754 return NULL;
00755 }
00756
00758 typedef SmallVector<Train *, 16> TrainList;
00759
00765 static void MakeTrainBackup(TrainList &list, Train *t)
00766 {
00767 for (; t != NULL; t = t->Next()) *list.Append() = t;
00768 }
00769
00774 static void RestoreTrainBackup(TrainList &list)
00775 {
00776
00777 if (list.Length() == 0) return;
00778
00779 Train *prev = NULL;
00780
00781 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00782 Train *t = *iter;
00783 if (prev != NULL) {
00784 prev->SetNext(t);
00785 } else if (t->Previous() != NULL) {
00786
00787 t->Previous()->SetNext(NULL);
00788 }
00789 prev = t;
00790 }
00791 }
00792
00798 static void RemoveFromConsist(Train *part, bool chain = false)
00799 {
00800 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
00801
00802
00803
00804 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
00805
00806
00807 tail->SetNext(NULL);
00808 }
00809
00815 static void InsertInConsist(Train *dst, Train *chain)
00816 {
00817
00818 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
00819
00820 chain->Last()->SetNext(dst->Next());
00821 dst->SetNext(chain);
00822 }
00823
00829 static void NormaliseDualHeads(Train *t)
00830 {
00831 for (; t != NULL; t = t->GetNextVehicle()) {
00832 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
00833
00834
00835 Train *u;
00836 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
00837
00838 if (u == t->other_multiheaded_part) continue;
00839
00840
00841 RemoveFromConsist(t->other_multiheaded_part);
00842
00843 InsertInConsist(u, t->other_multiheaded_part);
00844 }
00845 }
00846
00851 static void NormaliseSubtypes(Train *chain)
00852 {
00853
00854 if (chain == NULL) return;
00855
00856
00857 assert(chain->Previous() == NULL);
00858
00859
00860 if (chain->IsWagon()) {
00861 chain->SetFreeWagon();
00862 } else {
00863 assert(chain->IsEngine());
00864 chain->SetFrontEngine();
00865 }
00866
00867
00868 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
00869 t->ClearFreeWagon();
00870 t->ClearFrontEngine();
00871 }
00872 }
00873
00883 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
00884 {
00885
00886
00887
00888 if ((src != NULL && src->IsEngine() ? 1 : 0) +
00889 (dst != NULL && dst->IsEngine() ? 1 : 0) -
00890 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
00891 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
00892 return CommandCost();
00893 }
00894
00895
00896
00897 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
00898
00899 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00900 }
00901
00907 static CommandCost CheckTrainAttachment(Train *t)
00908 {
00909
00910 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
00911
00912
00913
00914 int allowed_len = _settings_game.vehicle.max_train_length * TILE_SIZE - t->gcache.cached_veh_length;
00915
00916 Train *head = t;
00917 Train *prev = t;
00918
00919
00920 t = t->Next();
00921 prev->SetNext(NULL);
00922
00923
00924 head->InvalidateNewGRFCache();
00925
00926 while (t != NULL) {
00927 allowed_len -= t->gcache.cached_veh_length;
00928
00929 Train *next = t->Next();
00930
00931
00932
00933 t->SetNext(NULL);
00934
00935
00936 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
00937
00938 EngineID first_engine = t->gcache.first_engine;
00939 t->gcache.first_engine = INVALID_ENGINE;
00940
00941
00942
00943 t->InvalidateNewGRFCache();
00944
00945 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
00946
00947
00948 t->gcache.first_engine = first_engine;
00949
00950
00951 t->InvalidateNewGRFCache();
00952 head->InvalidateNewGRFCache();
00953
00954 if (callback != CALLBACK_FAILED) {
00955
00956 StringID error = STR_NULL;
00957
00958 if (head->GetGRF()->grf_version < 8) {
00959 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00960 if (callback < 0xFD) error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
00961 if (callback >= 0x100) ErrorUnknownCallbackResult(head->GetGRFID(), CBID_TRAIN_ALLOW_WAGON_ATTACH, callback);
00962 } else {
00963 if (callback < 0x400) {
00964 error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
00965 } else {
00966 switch (callback) {
00967 case 0x400:
00968 case 0x401:
00969 break;
00970
00971 default:
00972 case 0x402:
00973 error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00974 break;
00975 }
00976 }
00977 }
00978
00979 if (error != STR_NULL) return_cmd_error(error);
00980 }
00981 }
00982
00983
00984 prev->SetNext(t);
00985 prev = t;
00986 t = next;
00987 }
00988
00989 if (allowed_len < 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
00990 return CommandCost();
00991 }
00992
01003 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
01004 {
01005
01006 CommandCost ret = CheckTrainAttachment(src);
01007 if (ret.Failed()) return ret;
01008 ret = CheckTrainAttachment(dst);
01009 if (ret.Failed()) return ret;
01010
01011
01012 return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
01013 }
01014
01023 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01024 {
01025
01026 if (*src_head == *dst_head) {
01027
01028
01029 *dst_head = NULL;
01030 } else if (*dst_head == NULL) {
01031
01032
01033 *dst_head = src;
01034 }
01035
01036 if (src == *src_head) {
01037
01038
01039
01040
01041
01042
01043 *src_head = move_chain ? NULL :
01044 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01045 }
01046
01047
01048
01049
01050 RemoveFromConsist(src, move_chain);
01051 if (*dst_head != src) InsertInConsist(dst, src);
01052
01053
01054
01055 NormaliseDualHeads(*src_head);
01056 NormaliseDualHeads(*dst_head);
01057 }
01058
01064 static void NormaliseTrainHead(Train *head)
01065 {
01066
01067 if (head == NULL) return;
01068
01069
01070 head->ConsistChanged(false);
01071 UpdateTrainGroupID(head);
01072
01073
01074 if (!head->IsFrontEngine()) return;
01075
01076
01077 InvalidateWindowData(WC_VEHICLE_REFIT, head->index);
01078 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, WID_VV_REFIT);
01079
01080
01081 if (head->unitnumber != 0) return;
01082 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01083 }
01084
01097 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01098 {
01099 VehicleID s = GB(p1, 0, 20);
01100 VehicleID d = GB(p2, 0, 20);
01101 bool move_chain = HasBit(p1, 20);
01102
01103 Train *src = Train::GetIfValid(s);
01104 if (src == NULL) return CMD_ERROR;
01105
01106 CommandCost ret = CheckOwnership(src->owner);
01107 if (ret.Failed()) return ret;
01108
01109
01110 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01111
01112
01113 Train *dst;
01114 if (d == INVALID_VEHICLE) {
01115 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01116 } else {
01117 dst = Train::GetIfValid(d);
01118 if (dst == NULL) return CMD_ERROR;
01119
01120 CommandCost ret = CheckOwnership(dst->owner);
01121 if (ret.Failed()) return ret;
01122
01123
01124 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01125 }
01126
01127
01128 src = src->GetFirstEnginePart();
01129 if (dst != NULL) {
01130 dst = dst->GetFirstEnginePart();
01131 }
01132
01133
01134 if (src == dst) return CommandCost();
01135
01136
01137 Train *src_head = src->First();
01138 Train *dst_head;
01139 if (dst != NULL) {
01140 dst_head = dst->First();
01141 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01142
01143 dst = dst->GetLastEnginePart();
01144 } else {
01145 dst_head = NULL;
01146 }
01147
01148 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01149
01150
01151 if (move_chain && src_head == dst_head) return CommandCost();
01152
01153
01154 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01155
01156
01157 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01158
01159
01160 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01161
01162
01163
01164 TrainList original_src;
01165 TrainList original_dst;
01166
01167 MakeTrainBackup(original_src, src_head);
01168 MakeTrainBackup(original_dst, dst_head);
01169
01170
01171
01172
01173 Train *original_src_head = src_head;
01174 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01175
01176
01177 bool original_src_head_front_engine = original_src_head != NULL && original_src_head->IsFrontEngine();
01178 bool original_dst_head_front_engine = original_dst_head != NULL && original_dst_head->IsFrontEngine();
01179
01180
01181 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01182
01183 if ((flags & DC_AUTOREPLACE) == 0) {
01184
01185
01186
01187 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
01188 if (ret.Failed()) {
01189
01190 RestoreTrainBackup(original_src);
01191 RestoreTrainBackup(original_dst);
01192 return ret;
01193 }
01194 }
01195
01196
01197 if (flags & DC_EXEC) {
01198
01199 if (original_src_head_front_engine) GroupStatistics::CountVehicle(original_src_head, -1);
01200 if (original_dst_head_front_engine) GroupStatistics::CountVehicle(original_dst_head, -1);
01201
01202
01203 NormaliseSubtypes(src_head);
01204 NormaliseSubtypes(dst_head);
01205
01206
01207
01208
01209
01210
01211
01212
01213
01214
01215
01216
01217
01218
01219
01220
01221
01222
01223
01224
01225
01226 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01227
01228 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01229 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01230 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01231 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01232 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01233 SetWindowDirty(WC_COMPANY, _current_company);
01234
01235
01236
01237 DeleteVehicleOrders(src);
01238 RemoveVehicleFromGroup(src);
01239 src->unitnumber = 0;
01240 }
01241
01242
01243
01244 if (original_src_head != src && dst_head == src) {
01245 SetTrainGroupID(src, DEFAULT_GROUP);
01246 SetWindowDirty(WC_COMPANY, _current_company);
01247 }
01248
01249
01250 if (src_head != NULL && src_head->IsFrontEngine()) GroupStatistics::CountVehicle(src_head, 1);
01251 if (dst_head != NULL && dst_head->IsFrontEngine()) GroupStatistics::CountVehicle(dst_head, 1);
01252
01253
01254 NormaliseTrainHead(src_head);
01255 NormaliseTrainHead(dst_head);
01256
01257 if ((flags & DC_NO_CARGO_CAP_CHECK) == 0) {
01258 CheckCargoCapacity(src_head);
01259 CheckCargoCapacity(dst_head);
01260 }
01261
01262
01263 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01264 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01265 } else {
01266
01267 RestoreTrainBackup(original_src);
01268 RestoreTrainBackup(original_dst);
01269 }
01270
01271 return CommandCost();
01272 }
01273
01285 CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint32 user)
01286 {
01287
01288 Window *w = NULL;
01289
01290
01291 bool sell_chain = HasBit(data, 0);
01292
01293 Train *v = Train::From(t)->GetFirstEnginePart();
01294 Train *first = v->First();
01295
01296 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01297
01298
01299
01300 TrainList original;
01301 MakeTrainBackup(original, first);
01302
01303
01304 Train *new_head = first;
01305 Train *sell_head = NULL;
01306
01307
01308 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01309
01310
01311 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
01312 if (ret.Failed()) {
01313
01314 RestoreTrainBackup(original);
01315 return ret;
01316 }
01317
01318 CommandCost cost(EXPENSES_NEW_VEHICLES);
01319 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01320
01321 if (first->orders.list == NULL && !OrderList::CanAllocateItem()) {
01322 return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
01323 }
01324
01325
01326 if (flags & DC_EXEC) {
01327
01328 NormaliseSubtypes(new_head);
01329
01330 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01331
01332
01333 new_head->orders.list = first->orders.list;
01334 new_head->AddToShared(first);
01335 DeleteVehicleOrders(first);
01336
01337
01338 new_head->CopyVehicleConfigAndStatistics(first);
01339 GroupStatistics::CountVehicle(new_head, 1);
01340
01341
01342 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01343 } else if (v->IsPrimaryVehicle() && data & (MAKE_ORDER_BACKUP_FLAG >> 20)) {
01344 OrderBackup::Backup(v, user);
01345 }
01346
01347
01348 NormaliseTrainHead(new_head);
01349
01350
01351 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01352 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01353
01354
01355 delete sell_head;
01356 } else {
01357
01358 RestoreTrainBackup(original);
01359 }
01360
01361 return cost;
01362 }
01363
01364 void Train::UpdateDeltaXY(Direction direction)
01365 {
01366
01367 this->x_offs = -1;
01368 this->y_offs = -1;
01369 this->x_extent = 3;
01370 this->y_extent = 3;
01371 this->z_extent = 6;
01372 this->x_bb_offs = 0;
01373 this->y_bb_offs = 0;
01374
01375 if (!IsDiagonalDirection(direction)) {
01376 static const int _sign_table[] =
01377 {
01378
01379 -1, -1,
01380 -1, 1,
01381 1, 1,
01382 1, -1,
01383 };
01384
01385 int half_shorten = (VEHICLE_LENGTH - this->gcache.cached_veh_length) / 2;
01386
01387
01388 this->x_offs -= half_shorten * _sign_table[direction];
01389 this->y_offs -= half_shorten * _sign_table[direction + 1];
01390 this->x_extent += this->x_bb_offs = half_shorten * _sign_table[direction];
01391 this->y_extent += this->y_bb_offs = half_shorten * _sign_table[direction + 1];
01392 } else {
01393 switch (direction) {
01394
01395
01396 case DIR_NE:
01397 this->x_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01398 this->x_extent = this->gcache.cached_veh_length - 1;
01399 this->x_bb_offs = -1;
01400 break;
01401
01402 case DIR_NW:
01403 this->y_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01404 this->y_extent = this->gcache.cached_veh_length - 1;
01405 this->y_bb_offs = -1;
01406 break;
01407
01408
01409
01410 case DIR_SW:
01411 this->x_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01412 this->x_extent = VEHICLE_LENGTH - 1;
01413 this->x_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01414 break;
01415
01416 case DIR_SE:
01417 this->y_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01418 this->y_extent = VEHICLE_LENGTH - 1;
01419 this->y_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01420 break;
01421
01422 default:
01423 NOT_REACHED();
01424 }
01425 }
01426 }
01427
01432 static void MarkTrainAsStuck(Train *v)
01433 {
01434 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01435
01436 SetBit(v->flags, VRF_TRAIN_STUCK);
01437
01438 v->wait_counter = 0;
01439
01440
01441 v->cur_speed = 0;
01442 v->subspeed = 0;
01443 v->SetLastSpeed();
01444
01445 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01446 }
01447 }
01448
01456 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01457 {
01458 uint16 flag1 = *swap_flag1;
01459 uint16 flag2 = *swap_flag2;
01460
01461
01462 ClrBit(*swap_flag1, GVF_GOINGUP_BIT);
01463 ClrBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01464 ClrBit(*swap_flag2, GVF_GOINGUP_BIT);
01465 ClrBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01466
01467
01468 if (HasBit(flag1, GVF_GOINGUP_BIT)) {
01469 SetBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01470 } else if (HasBit(flag1, GVF_GOINGDOWN_BIT)) {
01471 SetBit(*swap_flag2, GVF_GOINGUP_BIT);
01472 }
01473 if (HasBit(flag2, GVF_GOINGUP_BIT)) {
01474 SetBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01475 } else if (HasBit(flag2, GVF_GOINGDOWN_BIT)) {
01476 SetBit(*swap_flag1, GVF_GOINGUP_BIT);
01477 }
01478 }
01479
01484 static void UpdateStatusAfterSwap(Train *v)
01485 {
01486
01487 if (v->track != TRACK_BIT_DEPOT) v->direction = ReverseDir(v->direction);
01488
01489
01490 if (v->track != TRACK_BIT_WORMHOLE) {
01491 VehicleEnterTile(v, v->tile, v->x_pos, v->y_pos);
01492 } else {
01493
01494
01495
01496
01497 TileIndex vt = TileVirtXY(v->x_pos, v->y_pos);
01498 if (IsTileType(vt, MP_TUNNELBRIDGE)) {
01499 VehicleEnterTile(v, vt, v->x_pos, v->y_pos);
01500 if (v->track != TRACK_BIT_WORMHOLE && IsBridgeTile(v->tile)) {
01501
01502
01503
01504 VehicleUpdatePosition(v);
01505 v->UpdateInclination(true, true);
01506 return;
01507 }
01508 }
01509 }
01510
01511 VehicleUpdatePosition(v);
01512 v->UpdateViewport(true, true);
01513 }
01514
01521 void ReverseTrainSwapVeh(Train *v, int l, int r)
01522 {
01523 Train *a, *b;
01524
01525
01526 for (a = v; l != 0; l--) a = a->Next();
01527 for (b = v; r != 0; r--) b = b->Next();
01528
01529 if (a != b) {
01530
01531 {
01532 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus & VS_HIDDEN);
01533 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus & VS_HIDDEN);
01534 a->vehstatus = tmp;
01535 }
01536
01537 Swap(a->track, b->track);
01538 Swap(a->direction, b->direction);
01539 Swap(a->x_pos, b->x_pos);
01540 Swap(a->y_pos, b->y_pos);
01541 Swap(a->tile, b->tile);
01542 Swap(a->z_pos, b->z_pos);
01543
01544 SwapTrainFlags(&a->gv_flags, &b->gv_flags);
01545
01546 UpdateStatusAfterSwap(a);
01547 UpdateStatusAfterSwap(b);
01548 } else {
01549
01550
01551
01552 SwapTrainFlags(&a->gv_flags, &a->gv_flags);
01553 UpdateStatusAfterSwap(a);
01554 }
01555 }
01556
01557
01563 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01564 {
01565 return (v->type == VEH_TRAIN) ? v : NULL;
01566 }
01567
01568
01575 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01576 {
01577 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01578
01579 Train *t = Train::From(v);
01580 if (!t->IsFrontEngine()) return NULL;
01581
01582 TileIndex tile = *(TileIndex *)data;
01583
01584 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01585
01586 return t;
01587 }
01588
01589
01596 static bool TrainApproachingCrossing(TileIndex tile)
01597 {
01598 assert(IsLevelCrossingTile(tile));
01599
01600 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01601 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01602
01603 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01604
01605 dir = ReverseDiagDir(dir);
01606 tile_from = tile + TileOffsByDiagDir(dir);
01607
01608 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01609 }
01610
01611
01618 void UpdateLevelCrossing(TileIndex tile, bool sound)
01619 {
01620 assert(IsLevelCrossingTile(tile));
01621
01622
01623 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01624
01625 if (new_state != IsCrossingBarred(tile)) {
01626 if (new_state && sound) {
01627 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01628 }
01629 SetCrossingBarred(tile, new_state);
01630 MarkTileDirtyByTile(tile);
01631 }
01632 }
01633
01634
01640 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01641 {
01642 if (!IsCrossingBarred(tile)) {
01643 BarCrossing(tile);
01644 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01645 MarkTileDirtyByTile(tile);
01646 }
01647 }
01648
01649
01655 static void AdvanceWagonsBeforeSwap(Train *v)
01656 {
01657 Train *base = v;
01658 Train *first = base;
01659 Train *last = v->Last();
01660 uint length = CountVehiclesInChain(v);
01661
01662 while (length > 2) {
01663 last = last->Previous();
01664 first = first->Next();
01665
01666 int differential = base->CalcNextVehicleOffset() - last->CalcNextVehicleOffset();
01667
01668
01669
01670 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01671
01672 base = first;
01673 length -= 2;
01674 }
01675 }
01676
01677
01683 static void AdvanceWagonsAfterSwap(Train *v)
01684 {
01685
01686 Train *dep = v;
01687 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01688 dep = dep->Next();
01689 }
01690
01691 Train *leave = dep->Next();
01692
01693 if (leave != NULL) {
01694
01695 int d = TicksToLeaveDepot(dep);
01696
01697 if (d <= 0) {
01698 leave->vehstatus &= ~VS_HIDDEN;
01699 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01700 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01701 }
01702 } else {
01703 dep = NULL;
01704 }
01705
01706 Train *base = v;
01707 Train *first = base;
01708 Train *last = v->Last();
01709 uint length = CountVehiclesInChain(v);
01710
01711
01712
01713 bool nomove = (dep == NULL);
01714
01715 while (length > 2) {
01716
01717
01718 if (base == dep) break;
01719
01720
01721 if (last == dep) nomove = true;
01722
01723 last = last->Previous();
01724 first = first->Next();
01725
01726 int differential = last->CalcNextVehicleOffset() - base->CalcNextVehicleOffset();
01727
01728
01729 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01730
01731 base = first;
01732 length -= 2;
01733 }
01734 }
01735
01740 void ReverseTrainDirection(Train *v)
01741 {
01742 if (IsRailDepotTile(v->tile)) {
01743 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01744 }
01745
01746
01747 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01748
01749
01750 TileIndex crossing = TrainApproachingCrossingTile(v);
01751
01752
01753 int r = CountVehiclesInChain(v) - 1;
01754
01755 AdvanceWagonsBeforeSwap(v);
01756
01757
01758 int l = 0;
01759 do {
01760 ReverseTrainSwapVeh(v, l++, r--);
01761 } while (l <= r);
01762
01763 AdvanceWagonsAfterSwap(v);
01764
01765 if (IsRailDepotTile(v->tile)) {
01766 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01767 }
01768
01769 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01770
01771 ClrBit(v->flags, VRF_REVERSING);
01772
01773
01774 v->ConsistChanged(true);
01775
01776
01777 for (Train *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01778
01779
01780 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01781
01782
01783 crossing = TrainApproachingCrossingTile(v);
01784 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01785
01786
01787 if (v->track == TRACK_BIT_DEPOT) {
01788
01789 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01790 ClrBit(v->flags, VRF_TRAIN_STUCK);
01791 return;
01792 }
01793
01794
01795
01796 DiagDirection dir = TrainExitDir(v->direction, v->track);
01797 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01798
01799 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01800
01801
01802 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01803 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01804 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01805
01806
01807 if (IsRailDepotTile(v->tile) && TrackdirToExitdir(v->GetVehicleTrackdir()) == GetRailDepotDirection(v->tile)) first_tile_okay = false;
01808
01809 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01810 if (TryPathReserve(v, false, first_tile_okay)) {
01811
01812 CheckNextTrainTile(v);
01813 } else if (v->current_order.GetType() != OT_LOADING) {
01814
01815 MarkTrainAsStuck(v);
01816 }
01817 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01818
01819 ClrBit(v->flags, VRF_TRAIN_STUCK);
01820 v->wait_counter = 0;
01821 }
01822 }
01823
01833 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01834 {
01835 Train *v = Train::GetIfValid(p1);
01836 if (v == NULL) return CMD_ERROR;
01837
01838 CommandCost ret = CheckOwnership(v->owner);
01839 if (ret.Failed()) return ret;
01840
01841 if (p2 != 0) {
01842
01843
01844 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01845 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01846 }
01847 if (!HasBit(EngInfo(v->engine_type)->misc_flags, EF_RAIL_FLIPS)) return CMD_ERROR;
01848
01849 Train *front = v->First();
01850
01851 if (!front->IsStoppedInDepot()) {
01852 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01853 }
01854
01855 if (flags & DC_EXEC) {
01856 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01857
01858 front->ConsistChanged(false);
01859 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
01860 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
01861 SetWindowDirty(WC_VEHICLE_VIEW, front->index);
01862 SetWindowClassesDirty(WC_TRAINS_LIST);
01863 }
01864 } else {
01865
01866 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01867
01868 if (flags & DC_EXEC) {
01869
01870 if (v->current_order.IsType(OT_LOADING)) {
01871 const Vehicle *last = v;
01872 while (last->Next() != NULL) last = last->Next();
01873
01874
01875 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01876 v->LeaveStation();
01877 }
01878 }
01879
01880
01881 v->force_proceed = TFP_NONE;
01882 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01883
01884 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01885 ToggleBit(v->flags, VRF_REVERSING);
01886 } else {
01887 v->cur_speed = 0;
01888 v->SetLastSpeed();
01889 HideFillingPercent(&v->fill_percent_te_id);
01890 ReverseTrainDirection(v);
01891 }
01892 }
01893 }
01894 return CommandCost();
01895 }
01896
01906 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01907 {
01908 Train *t = Train::GetIfValid(p1);
01909 if (t == NULL) return CMD_ERROR;
01910
01911 if (!t->IsPrimaryVehicle()) return CMD_ERROR;
01912
01913 CommandCost ret = CheckOwnership(t->owner);
01914 if (ret.Failed()) return ret;
01915
01916
01917 if (flags & DC_EXEC) {
01918
01919
01920
01921
01922
01923 t->force_proceed = t->force_proceed == TFP_SIGNAL ? TFP_NONE : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsChainInDepot() ? TFP_STUCK : TFP_SIGNAL;
01924 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
01925 }
01926
01927 return CommandCost();
01928 }
01929
01937 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
01938 {
01939 assert(!(v->vehstatus & VS_CRASHED));
01940
01941 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
01942
01943 PBSTileInfo origin = FollowTrainReservation(v);
01944 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
01945
01946 switch (_settings_game.pf.pathfinder_for_trains) {
01947 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
01948 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
01949
01950 default: NOT_REACHED();
01951 }
01952 }
01953
01961 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
01962 {
01963 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
01964 if (tfdd.best_length == UINT_MAX) return false;
01965
01966 if (location != NULL) *location = tfdd.tile;
01967 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
01968 if (reverse != NULL) *reverse = tfdd.reverse;
01969
01970 return true;
01971 }
01972
01974 void Train::PlayLeaveStationSound() const
01975 {
01976 static const SoundFx sfx[] = {
01977 SND_04_TRAIN,
01978 SND_0A_TRAIN_HORN,
01979 SND_0A_TRAIN_HORN,
01980 SND_47_MAGLEV_2,
01981 SND_41_MAGLEV
01982 };
01983
01984 if (PlayVehicleSound(this, VSE_START)) return;
01985
01986 EngineID engtype = this->engine_type;
01987 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
01988 }
01989
01994 static void CheckNextTrainTile(Train *v)
01995 {
01996
01997 if (_settings_game.pf.path_backoff_interval == 255) return;
01998
01999
02000 if (v->track == TRACK_BIT_DEPOT) return;
02001
02002 switch (v->current_order.GetType()) {
02003
02004 case OT_GOTO_DEPOT:
02005 if (v->tile == v->dest_tile) return;
02006 break;
02007
02008 case OT_GOTO_WAYPOINT:
02009
02010 if (IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
02011 break;
02012
02013 case OT_NOTHING:
02014 case OT_LEAVESTATION:
02015 case OT_LOADING:
02016
02017 if (v->GetNumOrders() > 0) return;
02018 break;
02019
02020 default:
02021 break;
02022 }
02023
02024 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02025
02026 Trackdir td = v->GetVehicleTrackdir();
02027
02028
02029 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02030 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02031 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02032
02033 CFollowTrackRail ft(v);
02034 if (!ft.Follow(v->tile, td)) return;
02035
02036 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02037
02038 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02039 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02040
02041 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02042 if (_settings_game.pf.forbid_90_deg) {
02043 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02044 }
02045 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02046 }
02047 }
02048 }
02049 }
02050
02056 static bool CheckTrainStayInDepot(Train *v)
02057 {
02058
02059 for (const Train *u = v; u != NULL; u = u->Next()) {
02060 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02061 }
02062
02063
02064 if (v->gcache.cached_power == 0) {
02065 v->vehstatus |= VS_STOPPED;
02066 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02067 return true;
02068 }
02069
02070 SigSegState seg_state;
02071
02072 if (v->force_proceed == TFP_NONE) {
02073
02074 if (++v->wait_counter < 37) {
02075 SetWindowClassesDirty(WC_TRAINS_LIST);
02076 return true;
02077 }
02078
02079 v->wait_counter = 0;
02080
02081 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02082 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02083
02084 SetWindowClassesDirty(WC_TRAINS_LIST);
02085 return true;
02086 }
02087 } else {
02088 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02089 }
02090
02091
02092 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02093
02094 if (HasDepotReservation(v->tile)) return true;
02095 SetDepotReservation(v->tile, true);
02096 VehicleEnterDepot(v);
02097 return true;
02098 }
02099
02100
02101 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == TFP_NONE) {
02102
02103 SetWindowClassesDirty(WC_TRAINS_LIST);
02104 MarkTrainAsStuck(v);
02105 return true;
02106 }
02107
02108 SetDepotReservation(v->tile, true);
02109 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02110
02111 VehicleServiceInDepot(v);
02112 SetWindowClassesDirty(WC_TRAINS_LIST);
02113 v->PlayLeaveStationSound();
02114
02115 v->track = TRACK_BIT_X;
02116 if (v->direction & 2) v->track = TRACK_BIT_Y;
02117
02118 v->vehstatus &= ~VS_HIDDEN;
02119 v->cur_speed = 0;
02120
02121 v->UpdateViewport(true, true);
02122 VehicleUpdatePosition(v);
02123 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02124 v->UpdateAcceleration();
02125 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02126
02127 return false;
02128 }
02129
02136 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02137 {
02138 DiagDirection dir = TrackdirToExitdir(track_dir);
02139
02140 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02141
02142 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02143 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02144
02145 if (TunnelBridgeIsFree(tile, end, v).Succeeded()) {
02146
02147 SetTunnelBridgeReservation(tile, false);
02148 SetTunnelBridgeReservation(end, false);
02149
02150 if (_settings_client.gui.show_track_reservation) {
02151 MarkTileDirtyByTile(tile);
02152 MarkTileDirtyByTile(end);
02153 }
02154 }
02155 }
02156 } else if (IsRailStationTile(tile)) {
02157 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02158
02159
02160 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02161 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02162 }
02163 } else {
02164
02165 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02166 }
02167 }
02168
02175 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02176 {
02177 assert(v->IsFrontEngine());
02178
02179 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02180 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02181 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02182 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02183
02184
02185 if (IsRailDepotTile(tile) && TrackdirToExitdir(td) != GetRailDepotDirection(tile)) return;
02186 if (v->track == TRACK_BIT_DEPOT) {
02187
02188 for (const Train *u = v; u != NULL; u = u->Next()) {
02189 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return;
02190 }
02191 }
02192
02193 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02194
02195 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02196 while (ft.Follow(tile, td)) {
02197 tile = ft.m_new_tile;
02198 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02199 td = RemoveFirstTrackdir(&bits);
02200 assert(bits == TRACKDIR_BIT_NONE);
02201
02202 if (!IsValidTrackdir(td)) break;
02203
02204 if (IsTileType(tile, MP_RAILWAY)) {
02205 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02206
02207 UnreserveRailTrack(tile, TrackdirToTrack(td));
02208 break;
02209 }
02210 if (HasPbsSignalOnTrackdir(tile, td)) {
02211 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02212
02213 break;
02214 } else {
02215
02216 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02217 MarkTileDirtyByTile(tile);
02218 }
02219 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02220 break;
02221 }
02222 }
02223
02224
02225 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);
02226
02227 free_tile = true;
02228 }
02229 }
02230
02231 static const byte _initial_tile_subcoord[6][4][3] = {
02232 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02233 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02234 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02235 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02236 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02237 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02238 };
02239
02252 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool &path_found, bool do_track_reservation, PBSTileInfo *dest)
02253 {
02254 switch (_settings_game.pf.pathfinder_for_trains) {
02255 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02256 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02257
02258 default: NOT_REACHED();
02259 }
02260 }
02261
02267 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02268 {
02269 PBSTileInfo origin = FollowTrainReservation(v);
02270
02271 CFollowTrackRail ft(v);
02272
02273 TileIndex tile = origin.tile;
02274 Trackdir cur_td = origin.trackdir;
02275 while (ft.Follow(tile, cur_td)) {
02276 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02277
02278 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02279 }
02280
02281 if (_settings_game.pf.forbid_90_deg) {
02282 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02283 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02284 }
02285
02286
02287 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02288 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02289
02290
02291
02292
02293
02294
02295 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02296
02297
02298
02299 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02300
02301
02302 if (new_tracks != NULL) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02303 if (enterdir != NULL) *enterdir = ft.m_exitdir;
02304 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02305 }
02306
02307 tile = ft.m_new_tile;
02308 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02309
02310 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02311 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02312 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02313
02314 return PBSTileInfo(tile, cur_td, true);
02315 }
02316
02317 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02318 }
02319
02320 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02321
02322 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02323 }
02324
02325
02326 tile = origin.tile;
02327 cur_td = origin.trackdir;
02328 TileIndex stopped = ft.m_old_tile;
02329 Trackdir stopped_td = ft.m_old_td;
02330 while (tile != stopped || cur_td != stopped_td) {
02331 if (!ft.Follow(tile, cur_td)) break;
02332
02333 if (_settings_game.pf.forbid_90_deg) {
02334 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02335 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02336 }
02337 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02338
02339 tile = ft.m_new_tile;
02340 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02341
02342 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02343 }
02344
02345
02346 return PBSTileInfo();
02347 }
02348
02359 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02360 {
02361 switch (_settings_game.pf.pathfinder_for_trains) {
02362 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02363 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02364
02365 default: NOT_REACHED();
02366 }
02367 }
02368
02370 class VehicleOrderSaver {
02371 private:
02372 Train *v;
02373 Order old_order;
02374 TileIndex old_dest_tile;
02375 StationID old_last_station_visited;
02376 VehicleOrderID index;
02377 bool suppress_implicit_orders;
02378
02379 public:
02380 VehicleOrderSaver(Train *_v) :
02381 v(_v),
02382 old_order(_v->current_order),
02383 old_dest_tile(_v->dest_tile),
02384 old_last_station_visited(_v->last_station_visited),
02385 index(_v->cur_real_order_index),
02386 suppress_implicit_orders(HasBit(_v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS))
02387 {
02388 }
02389
02390 ~VehicleOrderSaver()
02391 {
02392 this->v->current_order = this->old_order;
02393 this->v->dest_tile = this->old_dest_tile;
02394 this->v->last_station_visited = this->old_last_station_visited;
02395 SB(this->v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS, 1, suppress_implicit_orders ? 1: 0);
02396 }
02397
02403 bool SwitchToNextOrder(bool skip_first)
02404 {
02405 if (this->v->GetNumOrders() == 0) return false;
02406
02407 if (skip_first) ++this->index;
02408
02409 int depth = 0;
02410
02411 do {
02412
02413 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02414
02415 Order *order = this->v->GetOrder(this->index);
02416 assert(order != NULL);
02417
02418 switch (order->GetType()) {
02419 case OT_GOTO_DEPOT:
02420
02421 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02422 case OT_GOTO_STATION:
02423 case OT_GOTO_WAYPOINT:
02424 this->v->current_order = *order;
02425 return UpdateOrderDest(this->v, order, 0, true);
02426 case OT_CONDITIONAL: {
02427 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02428 if (next != INVALID_VEH_ORDER_ID) {
02429 depth++;
02430 this->index = next;
02431
02432 continue;
02433 }
02434 break;
02435 }
02436 default:
02437 break;
02438 }
02439
02440
02441 ++this->index;
02442 depth++;
02443 } while (this->index != this->v->cur_real_order_index && depth < this->v->GetNumOrders());
02444
02445 return false;
02446 }
02447 };
02448
02449
02450 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02451 {
02452 Track best_track = INVALID_TRACK;
02453 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02454 bool changed_signal = false;
02455
02456 assert((tracks & ~TRACK_BIT_MASK) == 0);
02457
02458 if (got_reservation != NULL) *got_reservation = false;
02459
02460
02461 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02462
02463 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02464
02465
02466 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02467 Track track = FindFirstTrack(tracks);
02468
02469 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02470 do_track_reservation = true;
02471 changed_signal = true;
02472 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02473 } else if (!do_track_reservation) {
02474 return track;
02475 }
02476 best_track = track;
02477 }
02478
02479 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02480 DiagDirection dest_enterdir = enterdir;
02481 if (do_track_reservation) {
02482 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02483 if (res_dest.tile == INVALID_TILE) {
02484
02485 if (mark_stuck) MarkTrainAsStuck(v);
02486 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02487 return FindFirstTrack(tracks);
02488 }
02489 if (res_dest.okay) {
02490
02491 if (got_reservation != NULL) *got_reservation = true;
02492 if (changed_signal) MarkTileDirtyByTile(tile);
02493 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02494 return best_track;
02495 }
02496
02497
02498
02499
02500 CheckIfTrainNeedsService(v);
02501 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02502 }
02503
02504
02505 VehicleOrderSaver orders(v);
02506
02507
02508
02509
02510
02511
02512
02513 if (v->current_order.IsType(OT_LEAVESTATION)) {
02514 orders.SwitchToNextOrder(false);
02515 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02516 v->current_order.IsType(OT_GOTO_STATION) ?
02517 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02518 v->tile == v->dest_tile))) {
02519 orders.SwitchToNextOrder(true);
02520 }
02521
02522 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02523
02524 bool path_found = true;
02525 TileIndex new_tile = res_dest.tile;
02526
02527 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, path_found, do_track_reservation, &res_dest);
02528 if (new_tile == tile) best_track = next_track;
02529 v->HandlePathfindingResult(path_found);
02530 }
02531
02532
02533 if (!do_track_reservation) return best_track;
02534
02535
02536 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02537 if (mark_stuck) MarkTrainAsStuck(v);
02538 FreeTrainTrackReservation(v);
02539 return best_track;
02540 }
02541
02542
02543 if (res_dest.tile == INVALID_TILE) {
02544
02545 PBSTileInfo origin = FollowTrainReservation(v);
02546 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02547 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02548 best_track = FindFirstTrack(res);
02549 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02550 if (got_reservation != NULL) *got_reservation = true;
02551 if (changed_signal) MarkTileDirtyByTile(tile);
02552 } else {
02553 FreeTrainTrackReservation(v);
02554 if (mark_stuck) MarkTrainAsStuck(v);
02555 }
02556 return best_track;
02557 }
02558
02559 if (got_reservation != NULL) *got_reservation = true;
02560
02561
02562 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02563
02564 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02565 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02566 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02567 if (_settings_game.pf.forbid_90_deg) {
02568 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02569 }
02570
02571
02572 if (orders.SwitchToNextOrder(true)) {
02573 PBSTileInfo cur_dest;
02574 bool path_found;
02575 DoTrainPathfind(v, next_tile, exitdir, reachable, path_found, true, &cur_dest);
02576 if (cur_dest.tile != INVALID_TILE) {
02577 res_dest = cur_dest;
02578 if (res_dest.okay) continue;
02579
02580 FreeTrainTrackReservation(v);
02581 if (mark_stuck) MarkTrainAsStuck(v);
02582 if (got_reservation != NULL) *got_reservation = false;
02583 changed_signal = false;
02584 break;
02585 }
02586 }
02587
02588 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02589 FreeTrainTrackReservation(v);
02590 if (mark_stuck) MarkTrainAsStuck(v);
02591 if (got_reservation != NULL) *got_reservation = false;
02592 changed_signal = false;
02593 }
02594 break;
02595 }
02596
02597 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02598
02599 if (changed_signal) MarkTileDirtyByTile(tile);
02600
02601 return best_track;
02602 }
02603
02612 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02613 {
02614 assert(v->IsFrontEngine());
02615
02616
02617
02618
02619 if (v->track == TRACK_BIT_DEPOT) {
02620 if (HasDepotReservation(v->tile)) {
02621 if (mark_as_stuck) MarkTrainAsStuck(v);
02622 return false;
02623 } else {
02624
02625 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02626 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02627 }
02628 }
02629
02630 Vehicle *other_train = NULL;
02631 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02632
02633
02634
02635
02636
02637 if (other_train != NULL && other_train->index != v->index) {
02638 if (mark_as_stuck) MarkTrainAsStuck(v);
02639 return false;
02640 }
02641
02642 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02643
02644 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02645 ClrBit(v->flags, VRF_TRAIN_STUCK);
02646 return true;
02647 }
02648
02649
02650 if (v->track == TRACK_BIT_DEPOT) {
02651 SetDepotReservation(v->tile, true);
02652 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02653 }
02654
02655 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02656 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02657 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02658
02659 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02660
02661 bool res_made = false;
02662 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02663
02664 if (!res_made) {
02665
02666 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02667 return false;
02668 }
02669
02670 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02671 v->wait_counter = 0;
02672 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02673 }
02674 ClrBit(v->flags, VRF_TRAIN_STUCK);
02675 return true;
02676 }
02677
02678
02679 static bool CheckReverseTrain(const Train *v)
02680 {
02681 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02682 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02683 !(v->direction & 1)) {
02684 return false;
02685 }
02686
02687 assert(v->track != TRACK_BIT_NONE);
02688
02689 switch (_settings_game.pf.pathfinder_for_trains) {
02690 case VPF_NPF: return NPFTrainCheckReverse(v);
02691 case VPF_YAPF: return YapfTrainCheckReverse(v);
02692
02693 default: NOT_REACHED();
02694 }
02695 }
02696
02702 TileIndex Train::GetOrderStationLocation(StationID station)
02703 {
02704 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02705
02706 const Station *st = Station::Get(station);
02707 if (!(st->facilities & FACIL_TRAIN)) {
02708
02709 this->IncrementRealOrderIndex();
02710 return 0;
02711 }
02712
02713 return st->xy;
02714 }
02715
02717 void Train::MarkDirty()
02718 {
02719 Train *v = this;
02720 do {
02721 v->UpdateViewport(false, false);
02722 } while ((v = v->Next()) != NULL);
02723
02724
02725 this->CargoChanged();
02726 this->UpdateAcceleration();
02727 }
02728
02736 int Train::UpdateSpeed()
02737 {
02738 switch (_settings_game.vehicle.train_acceleration_model) {
02739 default: NOT_REACHED();
02740 case AM_ORIGINAL:
02741 return this->DoUpdateSpeed(this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2), 0, min(this->gcache.cached_max_track_speed, this->current_order.max_speed));
02742
02743 case AM_REALISTIC:
02744 return this->DoUpdateSpeed(this->GetAcceleration(), this->GetAccelerationStatus() == AS_BRAKE ? 0 : 2, this->GetCurrentMaxSpeed());
02745 }
02746 }
02747
02753 static void TrainEnterStation(Train *v, StationID station)
02754 {
02755 v->last_station_visited = station;
02756
02757
02758 Station *st = Station::Get(station);
02759 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02760 st->had_vehicle_of_type |= HVOT_TRAIN;
02761 SetDParam(0, st->index);
02762 AddVehicleNewsItem(
02763 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02764 v->owner == _local_company ? NT_ARRIVAL_COMPANY : NT_ARRIVAL_OTHER,
02765 v->index,
02766 st->index
02767 );
02768 AI::NewEvent(v->owner, new ScriptEventStationFirstVehicle(st->index, v->index));
02769 Game::NewEvent(new ScriptEventStationFirstVehicle(st->index, v->index));
02770 }
02771
02772 v->force_proceed = TFP_NONE;
02773 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02774
02775 v->BeginLoading();
02776
02777 TriggerStationAnimation(st, v->tile, SAT_TRAIN_ARRIVES);
02778 }
02779
02780
02781 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
02782 {
02783 return IsTileOwner(tile, v->owner) &&
02784 (!v->IsFrontEngine() || HasBit(v->compatible_railtypes, GetRailType(tile)));
02785 }
02786
02788 struct AccelerationSlowdownParams {
02789 byte small_turn;
02790 byte large_turn;
02791 byte z_up;
02792 byte z_down;
02793 };
02794
02796 static const AccelerationSlowdownParams _accel_slowdown[] = {
02797
02798 {256 / 4, 256 / 2, 256 / 4, 2},
02799 {256 / 4, 256 / 2, 256 / 4, 2},
02800 {0, 256 / 2, 256 / 4, 2},
02801 };
02802
02808 static inline void AffectSpeedByZChange(Train *v, int old_z)
02809 {
02810 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
02811
02812 const AccelerationSlowdownParams *asp = &_accel_slowdown[GetRailTypeInfo(v->railtype)->acceleration_type];
02813
02814 if (old_z < v->z_pos) {
02815 v->cur_speed -= (v->cur_speed * asp->z_up >> 8);
02816 } else {
02817 uint16 spd = v->cur_speed + asp->z_down;
02818 if (spd <= v->gcache.cached_max_track_speed) v->cur_speed = spd;
02819 }
02820 }
02821
02822 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
02823 {
02824 if (IsTileType(tile, MP_RAILWAY) &&
02825 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
02826 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
02827 Trackdir trackdir = FindFirstTrackdir(tracks);
02828 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
02829
02830 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
02831 }
02832 }
02833 return false;
02834 }
02835
02837 void Train::ReserveTrackUnderConsist() const
02838 {
02839 for (const Train *u = this; u != NULL; u = u->Next()) {
02840 switch (u->track) {
02841 case TRACK_BIT_WORMHOLE:
02842 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
02843 break;
02844 case TRACK_BIT_DEPOT:
02845 break;
02846 default:
02847 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
02848 break;
02849 }
02850 }
02851 }
02852
02859 uint Train::Crash(bool flooded)
02860 {
02861 uint pass = 0;
02862 if (this->IsFrontEngine()) {
02863 pass += 2;
02864
02865
02866
02867 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
02868 for (const Train *v = this; v != NULL; v = v->Next()) {
02869 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
02870 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
02871
02872
02873 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
02874 }
02875 }
02876
02877
02878
02879 TileIndex crossing = TrainApproachingCrossingTile(this);
02880 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
02881
02882
02883 HideFillingPercent(&this->fill_percent_te_id);
02884 }
02885
02886 pass += this->GroundVehicleBase::Crash(flooded);
02887
02888 this->crash_anim_pos = flooded ? 4000 : 1;
02889 return pass;
02890 }
02891
02898 static uint TrainCrashed(Train *v)
02899 {
02900 uint num = 0;
02901
02902
02903 if (!(v->vehstatus & VS_CRASHED)) {
02904 num = v->Crash();
02905 AI::NewEvent(v->owner, new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02906 Game::NewEvent(new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02907 }
02908
02909
02910
02911 v->ReserveTrackUnderConsist();
02912
02913 return num;
02914 }
02915
02917 struct TrainCollideChecker {
02918 Train *v;
02919 uint num;
02920 };
02921
02928 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
02929 {
02930 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
02931
02932
02933 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
02934
02935
02936 if (v->owner != tcc->v->owner) return NULL;
02937
02938
02939 Train *coll = Train::From(v)->First();
02940
02941
02942 if (coll == tcc->v) return NULL;
02943
02944 int x_diff = v->x_pos - tcc->v->x_pos;
02945 int y_diff = v->y_pos - tcc->v->y_pos;
02946
02947
02948
02949
02950
02951 uint hash = (y_diff + 7) | (x_diff + 7);
02952 if (hash & ~15) return NULL;
02953
02954
02955 int min_diff = (Train::From(v)->gcache.cached_veh_length + 1) / 2 + (tcc->v->gcache.cached_veh_length + 1) / 2 - 1;
02956 if (x_diff * x_diff + y_diff * y_diff > min_diff * min_diff) return NULL;
02957
02958
02959 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
02960
02961
02962 tcc->num += TrainCrashed(tcc->v);
02963 tcc->num += TrainCrashed(coll);
02964
02965 return NULL;
02966 }
02967
02975 static bool CheckTrainCollision(Train *v)
02976 {
02977
02978 if (v->track == TRACK_BIT_DEPOT) return false;
02979
02980 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
02981
02982 TrainCollideChecker tcc;
02983 tcc.v = v;
02984 tcc.num = 0;
02985
02986
02987 if (v->track == TRACK_BIT_WORMHOLE) {
02988 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
02989 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
02990 } else {
02991 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
02992 }
02993
02994
02995 if (tcc.num == 0) return false;
02996
02997 SetDParam(0, tcc.num);
02998 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH, NT_ACCIDENT, v->index);
02999
03000 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03001 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03002 return true;
03003 }
03004
03005 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03006 {
03007 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03008
03009 Train *t = Train::From(v);
03010 DiagDirection exitdir = *(DiagDirection *)data;
03011
03012
03013 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03014
03015 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03016
03017 return t;
03018 }
03019
03027 bool TrainController(Train *v, Vehicle *nomove, bool reverse)
03028 {
03029 Train *first = v->First();
03030 Train *prev;
03031 bool direction_changed = false;
03032
03033
03034 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03035 DiagDirection enterdir = DIAGDIR_BEGIN;
03036 bool update_signals_crossing = false;
03037
03038 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03039 if (v->track != TRACK_BIT_WORMHOLE) {
03040
03041 if (gp.old_tile == gp.new_tile) {
03042
03043 if (v->track == TRACK_BIT_DEPOT) {
03044
03045 gp.x = v->x_pos;
03046 gp.y = v->y_pos;
03047 } else {
03048
03049
03050
03051 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v, reverse)) return false;
03052
03053 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03054 if (HasBit(r, VETS_CANNOT_ENTER)) {
03055 goto invalid_rail;
03056 }
03057 if (HasBit(r, VETS_ENTERED_STATION)) {
03058
03059 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03060 }
03061 }
03062 } else {
03063
03064
03065
03066 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03067 assert(IsValidDiagDirection(enterdir));
03068
03069
03070
03071 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03072 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03073
03074 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03075 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03076
03077 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03078 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03079
03080
03081 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03082 }
03083
03084 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03085
03086
03087
03088 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03089
03090 TrackBits chosen_track;
03091 if (prev == NULL) {
03092
03093
03094 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03095 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03096
03097 if (v->force_proceed != TFP_NONE && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03098
03099
03100
03101
03102 Trackdir dir = FindFirstTrackdir(trackdirbits);
03103 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03104 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03105
03106
03107 v->force_proceed = (v->force_proceed == TFP_SIGNAL) ? TFP_STUCK : TFP_NONE;
03108 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03109 }
03110 }
03111
03112
03113 if ((red_signals & chosen_track) && v->force_proceed == TFP_NONE) {
03114
03115 Trackdir i = FindFirstTrackdir(trackdirbits);
03116
03117
03118 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return false;
03119
03120 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03121 v->cur_speed = 0;
03122 v->subspeed = 0;
03123 v->progress = 255 - 100;
03124 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return false;
03125 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03126 v->cur_speed = 0;
03127 v->subspeed = 0;
03128 v->progress = 255 - 10;
03129 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03130 DiagDirection exitdir = TrackdirToExitdir(i);
03131 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03132
03133 exitdir = ReverseDiagDir(exitdir);
03134
03135
03136 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return false;
03137 }
03138 }
03139
03140
03141
03142
03143
03144 if (!_settings_game.pf.reverse_at_signals && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03145 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03146 v->wait_counter = 0;
03147 return false;
03148 }
03149 goto reverse_train_direction;
03150 } else {
03151 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03152 }
03153 } else {
03154
03155 if (prev->tile == gp.new_tile) {
03156
03157 if (prev->track == TRACK_BIT_WORMHOLE) {
03158
03159
03160 assert(IsTunnel(prev->tile));
03161 chosen_track = bits;
03162 } else {
03163 chosen_track = prev->track;
03164 }
03165 } else {
03166
03167
03168
03169
03170
03171
03172
03173 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03174 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03175 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03176 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03177 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03178 };
03179 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03180 assert(IsValidDiagDirection(exitdir));
03181 chosen_track = _connecting_track[enterdir][exitdir];
03182 }
03183 chosen_track &= bits;
03184 }
03185
03186
03187 assert(
03188 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03189 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03190 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03191
03192
03193 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03194 gp.x = (gp.x & ~0xF) | b[0];
03195 gp.y = (gp.y & ~0xF) | b[1];
03196 Direction chosen_dir = (Direction)b[2];
03197
03198
03199 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03200 if (HasBit(r, VETS_CANNOT_ENTER)) {
03201 goto invalid_rail;
03202 }
03203
03204 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03205 Track track = FindFirstTrack(chosen_track);
03206 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03207 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03208 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03209 MarkTileDirtyByTile(gp.new_tile);
03210 }
03211
03212
03213 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03214
03215 v->tile = gp.new_tile;
03216
03217 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03218 v->First()->ConsistChanged(true);
03219 }
03220
03221 v->track = chosen_track;
03222 assert(v->track);
03223 }
03224
03225
03226
03227 update_signals_crossing = true;
03228
03229 if (chosen_dir != v->direction) {
03230 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03231 const AccelerationSlowdownParams *asp = &_accel_slowdown[GetRailTypeInfo(v->railtype)->acceleration_type];
03232 DirDiff diff = DirDifference(v->direction, chosen_dir);
03233 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? asp->small_turn : asp->large_turn) * v->cur_speed >> 8;
03234 }
03235 direction_changed = true;
03236 v->direction = chosen_dir;
03237 }
03238
03239 if (v->IsFrontEngine()) {
03240 v->wait_counter = 0;
03241
03242
03243 TileIndex crossing = TrainApproachingCrossingTile(v);
03244 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03245
03246
03247 CheckNextTrainTile(v);
03248 }
03249
03250 if (HasBit(r, VETS_ENTERED_STATION)) {
03251
03252 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03253 }
03254 }
03255 } else {
03256
03257
03258
03259 if (!(v->vehstatus & VS_HIDDEN)) {
03260 Train *first = v->First();
03261 first->cur_speed = min(first->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03262 }
03263
03264 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03265
03266 if (v->IsFrontEngine()) {
03267 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03268 CheckNextTrainTile(v);
03269 }
03270
03271
03272 if (gp.old_tile == gp.new_tile) {
03273 gp.old_tile = GetOtherTunnelBridgeEnd(gp.old_tile);
03274 }
03275 } else {
03276 v->x_pos = gp.x;
03277 v->y_pos = gp.y;
03278 VehicleUpdatePosition(v);
03279 if ((v->vehstatus & VS_HIDDEN) == 0) VehicleUpdateViewport(v, true);
03280 continue;
03281 }
03282 }
03283
03284
03285 v->UpdateDeltaXY(v->direction);
03286
03287 v->x_pos = gp.x;
03288 v->y_pos = gp.y;
03289 VehicleUpdatePosition(v);
03290
03291
03292 int old_z = v->UpdateInclination(gp.new_tile != gp.old_tile, false);
03293
03294 if (prev == NULL) {
03295
03296 AffectSpeedByZChange(v, old_z);
03297 }
03298
03299 if (update_signals_crossing) {
03300 if (v->IsFrontEngine()) {
03301 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03302
03303
03304
03305
03306
03307
03308
03309
03310 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03311 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03312 !TryPathReserve(v)) {
03313 MarkTrainAsStuck(v);
03314 }
03315 }
03316 }
03317
03318
03319
03320 if (v->Next() == NULL) {
03321 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03322 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03323 }
03324 }
03325
03326
03327 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03328 }
03329
03330 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03331
03332 return true;
03333
03334 invalid_rail:
03335
03336 if (prev != NULL) error("Disconnecting train");
03337
03338 reverse_train_direction:
03339 if (reverse) {
03340 v->wait_counter = 0;
03341 v->cur_speed = 0;
03342 v->subspeed = 0;
03343 ReverseTrainDirection(v);
03344 }
03345
03346 return false;
03347 }
03348
03355 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03356 {
03357 TrackBits *trackbits = (TrackBits *)data;
03358
03359 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03360 TrackBits train_tbits = Train::From(v)->track;
03361 if (train_tbits == TRACK_BIT_WORMHOLE) {
03362
03363 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03364 } else if (train_tbits != TRACK_BIT_DEPOT) {
03365 *trackbits |= train_tbits;
03366 }
03367 }
03368
03369 return NULL;
03370 }
03371
03379 static void DeleteLastWagon(Train *v)
03380 {
03381 Train *first = v->First();
03382
03383
03384
03385
03386 Train *u = v;
03387 for (; v->Next() != NULL; v = v->Next()) u = v;
03388 u->SetNext(NULL);
03389
03390 if (first != v) {
03391
03392 first->ConsistChanged(false);
03393
03394
03395 if (first->track == TRACK_BIT_DEPOT) {
03396 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03397 }
03398 }
03399
03400
03401 TrackBits trackbits = v->track;
03402 TileIndex tile = v->tile;
03403 Owner owner = v->owner;
03404
03405 delete v;
03406 v = NULL;
03407
03408 if (trackbits == TRACK_BIT_WORMHOLE) {
03409
03410 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03411 }
03412
03413 Track track = TrackBitsToTrack(trackbits);
03414 if (HasReservedTracks(tile, trackbits)) {
03415 UnreserveRailTrack(tile, track);
03416
03417
03418 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03419 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03420
03421
03422 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03423 Track t;
03424 FOR_EACH_SET_TRACK(t, remaining_trackbits) TryReserveRailTrack(tile, t);
03425 }
03426
03427
03428 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03429
03430
03431 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03432 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03433 } else {
03434 SetSignalsOnBothDir(tile, track, owner);
03435 }
03436 }
03437
03442 static void ChangeTrainDirRandomly(Train *v)
03443 {
03444 static const DirDiff delta[] = {
03445 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03446 };
03447
03448 do {
03449
03450 if (!(v->vehstatus & VS_HIDDEN)) {
03451 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03452 v->UpdateDeltaXY(v->direction);
03453 v->cur_image = v->GetImage(v->direction, EIT_ON_MAP);
03454
03455
03456
03457 if (v->track != TRACK_BIT_WORMHOLE) {
03458 VehicleUpdatePosition(v);
03459 v->UpdateInclination(false, false);
03460 }
03461 }
03462 } while ((v = v->Next()) != NULL);
03463 }
03464
03470 static bool HandleCrashedTrain(Train *v)
03471 {
03472 int state = ++v->crash_anim_pos;
03473
03474 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03475 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03476 }
03477
03478 uint32 r;
03479 if (state <= 200 && Chance16R(1, 7, r)) {
03480 int index = (r * 10 >> 16);
03481
03482 Vehicle *u = v;
03483 do {
03484 if (--index < 0) {
03485 r = Random();
03486
03487 CreateEffectVehicleRel(u,
03488 GB(r, 8, 3) + 2,
03489 GB(r, 16, 3) + 2,
03490 GB(r, 0, 3) + 5,
03491 EV_EXPLOSION_SMALL);
03492 break;
03493 }
03494 } while ((u = u->Next()) != NULL);
03495 }
03496
03497 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03498
03499 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03500 bool ret = v->Next() != NULL;
03501 DeleteLastWagon(v);
03502 return ret;
03503 }
03504
03505 return true;
03506 }
03507
03509 static const uint16 _breakdown_speeds[16] = {
03510 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03511 };
03512
03513
03522 static bool TrainApproachingLineEnd(Train *v, bool signal, bool reverse)
03523 {
03524
03525 uint x = v->x_pos & 0xF;
03526 uint y = v->y_pos & 0xF;
03527
03528
03529
03530 switch (v->direction) {
03531 case DIR_N : x = ~x + ~y + 25; break;
03532 case DIR_NW: x = y;
03533 case DIR_NE: x = ~x + 16; break;
03534 case DIR_E : x = ~x + y + 9; break;
03535 case DIR_SE: x = y; break;
03536 case DIR_S : x = x + y - 7; break;
03537 case DIR_W : x = ~y + x + 9; break;
03538 default: break;
03539 }
03540
03541
03542
03543
03544
03545
03546 if (!signal && x + (v->gcache.cached_veh_length + 1) / 2 * (IsDiagonalDirection(v->direction) ? 1 : 2) >= TILE_SIZE) {
03547
03548 v->cur_speed = 0;
03549 if (reverse) ReverseTrainDirection(v);
03550 return false;
03551 }
03552
03553
03554 v->vehstatus |= VS_TRAIN_SLOWING;
03555 uint16 break_speed = _breakdown_speeds[x & 0xF];
03556 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03557
03558 return true;
03559 }
03560
03561
03567 static bool TrainCanLeaveTile(const Train *v)
03568 {
03569
03570 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03571
03572 TileIndex tile = v->tile;
03573
03574
03575 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03576 DiagDirection dir = GetTunnelBridgeDirection(tile);
03577 if (DiagDirToDir(dir) == v->direction) return false;
03578 }
03579
03580
03581 if (IsRailDepotTile(tile)) {
03582 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03583 if (DiagDirToDir(dir) == v->direction) return false;
03584 }
03585
03586 return true;
03587 }
03588
03589
03597 static TileIndex TrainApproachingCrossingTile(const Train *v)
03598 {
03599 assert(v->IsFrontEngine());
03600 assert(!(v->vehstatus & VS_CRASHED));
03601
03602 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03603
03604 DiagDirection dir = TrainExitDir(v->direction, v->track);
03605 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03606
03607
03608 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03609 !CheckCompatibleRail(v, tile)) {
03610 return INVALID_TILE;
03611 }
03612
03613 return tile;
03614 }
03615
03616
03624 static bool TrainCheckIfLineEnds(Train *v, bool reverse)
03625 {
03626
03627
03628 int t = v->breakdown_ctr;
03629 if (t > 1) {
03630 v->vehstatus |= VS_TRAIN_SLOWING;
03631
03632 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03633 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03634 } else {
03635 v->vehstatus &= ~VS_TRAIN_SLOWING;
03636 }
03637
03638 if (!TrainCanLeaveTile(v)) return true;
03639
03640
03641 DiagDirection dir = TrainExitDir(v->direction, v->track);
03642
03643 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03644
03645
03646 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03647 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03648
03649 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03650 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03651
03652
03653
03654
03655 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03656 if (_settings_game.pf.forbid_90_deg) {
03657 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03658 }
03659
03660
03661 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03662 return TrainApproachingLineEnd(v, false, reverse);
03663 }
03664
03665
03666 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true, reverse);
03667
03668
03669 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03670
03671 return true;
03672 }
03673
03674
03675 static bool TrainLocoHandler(Train *v, bool mode)
03676 {
03677
03678 if (v->vehstatus & VS_CRASHED) {
03679 return mode ? true : HandleCrashedTrain(v);
03680 }
03681
03682 if (v->force_proceed != TFP_NONE) {
03683 ClrBit(v->flags, VRF_TRAIN_STUCK);
03684 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03685 }
03686
03687
03688 if (v->HandleBreakdown()) return true;
03689
03690 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03691 ReverseTrainDirection(v);
03692 }
03693
03694
03695 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03696
03697 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03698 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03699 v->wait_counter = 0;
03700 v->cur_speed = 0;
03701 v->subspeed = 0;
03702 ClrBit(v->flags, VRF_LEAVING_STATION);
03703 ReverseTrainDirection(v);
03704 return true;
03705 } else if (HasBit(v->flags, VRF_LEAVING_STATION)) {
03706
03707
03708
03709 DiagDirection dir = TrainExitDir(v->direction, v->track);
03710 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
03711
03712 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
03713 TryPathReserve(v, true, true);
03714 }
03715 ClrBit(v->flags, VRF_LEAVING_STATION);
03716 }
03717
03718 v->HandleLoading(mode);
03719
03720 if (v->current_order.IsType(OT_LOADING)) return true;
03721
03722 if (CheckTrainStayInDepot(v)) return true;
03723
03724 if (!mode) v->ShowVisualEffect();
03725
03726
03727 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03728 CheckNextTrainTile(v);
03729 }
03730
03731
03732 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03733 ++v->wait_counter;
03734
03735
03736 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.reverse_at_signals;
03737
03738 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == TFP_NONE) return true;
03739 if (!TryPathReserve(v)) {
03740
03741 if (turn_around) ReverseTrainDirection(v);
03742
03743 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03744
03745 if (_settings_client.gui.lost_vehicle_warn && v->owner == _local_company) {
03746 SetDParam(0, v->index);
03747 AddVehicleAdviceNewsItem(STR_NEWS_TRAIN_IS_STUCK, v->index);
03748 }
03749 v->wait_counter = 0;
03750 }
03751
03752 if (v->force_proceed == TFP_NONE) return true;
03753 ClrBit(v->flags, VRF_TRAIN_STUCK);
03754 v->wait_counter = 0;
03755 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03756 }
03757 }
03758
03759 if (v->current_order.IsType(OT_LEAVESTATION)) {
03760 v->current_order.Free();
03761 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03762 return true;
03763 }
03764
03765 int j = v->UpdateSpeed();
03766
03767
03768 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
03769
03770 v->force_proceed = TFP_NONE;
03771 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03772 }
03773
03774 int adv_spd = v->GetAdvanceDistance();
03775 if (j < adv_spd) {
03776
03777 if (v->cur_speed == 0) v->SetLastSpeed();
03778 } else {
03779 TrainCheckIfLineEnds(v);
03780
03781 for (;;) {
03782 j -= adv_spd;
03783 TrainController(v, NULL);
03784
03785 if (CheckTrainCollision(v)) break;
03786
03787 adv_spd = v->GetAdvanceDistance();
03788
03789
03790 if (j < adv_spd || v->cur_speed == 0) break;
03791
03792 OrderType order_type = v->current_order.GetType();
03793
03794 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
03795 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
03796 IsTileType(v->tile, MP_STATION) &&
03797 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
03798 ProcessOrders(v);
03799 }
03800 }
03801 v->SetLastSpeed();
03802 }
03803
03804 for (Train *u = v; u != NULL; u = u->Next()) {
03805 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
03806
03807 u->UpdateViewport(false, false);
03808 }
03809
03810 if (v->progress == 0) v->progress = j;
03811
03812 return true;
03813 }
03814
03819 Money Train::GetRunningCost() const
03820 {
03821 Money cost = 0;
03822 const Train *v = this;
03823
03824 do {
03825 const Engine *e = v->GetEngine();
03826 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
03827
03828 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
03829 if (cost_factor == 0) continue;
03830
03831
03832 if (v->IsMultiheaded()) cost_factor /= 2;
03833
03834 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->GetGRF());
03835 } while ((v = v->GetNextVehicle()) != NULL);
03836
03837 return cost;
03838 }
03839
03844 bool Train::Tick()
03845 {
03846 this->tick_counter++;
03847
03848 if (this->IsFrontEngine()) {
03849 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
03850
03851 this->current_order_time++;
03852
03853 if (!TrainLocoHandler(this, false)) return false;
03854
03855 return TrainLocoHandler(this, true);
03856 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
03857
03858 if (++this->crash_anim_pos >= 4400) {
03859 delete this;
03860 return false;
03861 }
03862 }
03863
03864 return true;
03865 }
03866
03871 static void CheckIfTrainNeedsService(Train *v)
03872 {
03873 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
03874 if (v->IsChainInDepot()) {
03875 VehicleServiceInDepot(v);
03876 return;
03877 }
03878
03879 uint max_penalty;
03880 switch (_settings_game.pf.pathfinder_for_trains) {
03881 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
03882 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
03883 default: NOT_REACHED();
03884 }
03885
03886 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
03887
03888 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
03889 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
03890
03891
03892
03893 v->current_order.MakeDummy();
03894 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03895 }
03896 return;
03897 }
03898
03899 DepotID depot = GetDepotIndex(tfdd.tile);
03900
03901 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
03902 v->current_order.GetDestination() != depot &&
03903 !Chance16(3, 16)) {
03904 return;
03905 }
03906
03907 SetBit(v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
03908 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
03909 v->dest_tile = tfdd.tile;
03910 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03911 }
03912
03914 void Train::OnNewDay()
03915 {
03916 AgeVehicle(this);
03917
03918 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
03919
03920 if (this->IsFrontEngine()) {
03921 CheckVehicleBreakdown(this);
03922
03923 CheckIfTrainNeedsService(this);
03924
03925 CheckOrders(this);
03926
03927
03928 if (this->current_order.IsType(OT_GOTO_STATION)) {
03929 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
03930 if (tile != INVALID_TILE) this->dest_tile = tile;
03931 }
03932
03933 if (this->running_ticks != 0) {
03934
03935 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
03936
03937 this->profit_this_year -= cost.GetCost();
03938 this->running_ticks = 0;
03939
03940 SubtractMoneyFromCompanyFract(this->owner, cost);
03941
03942 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
03943 SetWindowClassesDirty(WC_TRAINS_LIST);
03944 }
03945 }
03946 }
03947
03952 Trackdir Train::GetVehicleTrackdir() const
03953 {
03954 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
03955
03956 if (this->track == TRACK_BIT_DEPOT) {
03957
03958 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
03959 }
03960
03961 if (this->track == TRACK_BIT_WORMHOLE) {
03962
03963 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
03964 }
03965
03966 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
03967 }