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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 } else if (HasBit(e_u->info.callback_mask, CBM_VEHICLE_LENGTH)) {
00212
00213 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00214 }
00215 if (veh_len != CALLBACK_FAILED && veh_len >= VEHICLE_LENGTH) {
00216 ErrorUnknownCallbackResult(e_u->GetGRFID(), CBID_VEHICLE_LENGTH, veh_len);
00217 }
00218 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00219 veh_len = VEHICLE_LENGTH - Clamp(veh_len, 0, VEHICLE_LENGTH - 1);
00220
00221
00222 if (same_length && veh_len != u->gcache.cached_veh_length) VehicleLengthChanged(u);
00223
00224
00225 if (!same_length) u->gcache.cached_veh_length = veh_len;
00226
00227 this->gcache.cached_total_length += u->gcache.cached_veh_length;
00228 this->InvalidateNewGRFCache();
00229 u->InvalidateNewGRFCache();
00230 }
00231
00232
00233 this->vcache.cached_max_speed = max_speed;
00234 this->tcache.cached_tilt = train_can_tilt;
00235 this->tcache.cached_max_curve_speed = this->GetCurveSpeedLimit();
00236
00237
00238 this->CargoChanged();
00239
00240 if (this->IsFrontEngine()) {
00241 this->UpdateAcceleration();
00242 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00243 InvalidateWindowData(WC_VEHICLE_REFIT, this->index);
00244 }
00245 }
00246
00257 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length)
00258 {
00259 const Station *st = Station::Get(station_id);
00260 *station_ahead = st->GetPlatformLength(tile, DirToDiagDir(v->direction)) * TILE_SIZE;
00261 *station_length = st->GetPlatformLength(tile) * TILE_SIZE;
00262
00263
00264
00265 OrderStopLocation osl = OSL_PLATFORM_MIDDLE;
00266 if (v->gcache.cached_total_length >= *station_length) {
00267
00268 osl = OSL_PLATFORM_FAR_END;
00269 } else if (v->current_order.IsType(OT_GOTO_STATION) && v->current_order.GetDestination() == station_id) {
00270 osl = v->current_order.GetStopLocation();
00271 }
00272
00273
00274 int stop;
00275 switch (osl) {
00276 default: NOT_REACHED();
00277
00278 case OSL_PLATFORM_NEAR_END:
00279 stop = v->gcache.cached_total_length;
00280 break;
00281
00282 case OSL_PLATFORM_MIDDLE:
00283 stop = *station_length - (*station_length - v->gcache.cached_total_length) / 2;
00284 break;
00285
00286 case OSL_PLATFORM_FAR_END:
00287 stop = *station_length;
00288 break;
00289 }
00290
00291
00292
00293 return stop - (v->gcache.cached_veh_length + 1) / 2;
00294 }
00295
00296
00301 int Train::GetCurveSpeedLimit() const
00302 {
00303 assert(this->First() == this);
00304
00305 static const int absolute_max_speed = UINT16_MAX;
00306 int max_speed = absolute_max_speed;
00307
00308 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return max_speed;
00309
00310 int curvecount[2] = {0, 0};
00311
00312
00313 int numcurve = 0;
00314 int sum = 0;
00315 int pos = 0;
00316 int lastpos = -1;
00317 for (const Vehicle *u = this; u->Next() != NULL; u = u->Next(), pos++) {
00318 Direction this_dir = u->direction;
00319 Direction next_dir = u->Next()->direction;
00320
00321 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00322 if (dirdiff == DIRDIFF_SAME) continue;
00323
00324 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00325 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00326 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00327 if (lastpos != -1) {
00328 numcurve++;
00329 sum += pos - lastpos;
00330 if (pos - lastpos == 1 && max_speed > 88) {
00331 max_speed = 88;
00332 }
00333 }
00334 lastpos = pos;
00335 }
00336
00337
00338 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00339 max_speed = 61;
00340 }
00341 }
00342
00343 if (numcurve > 0 && max_speed > 88) {
00344 if (curvecount[0] == 1 && curvecount[1] == 1) {
00345 max_speed = absolute_max_speed;
00346 } else {
00347 sum /= numcurve;
00348 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00349 }
00350 }
00351
00352 if (max_speed != absolute_max_speed) {
00353
00354 const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00355 max_speed += (max_speed / 2) * rti->curve_speed;
00356
00357 if (this->tcache.cached_tilt) {
00358
00359 max_speed += max_speed / 5;
00360 }
00361 }
00362
00363 return max_speed;
00364 }
00365
00370 int Train::GetCurrentMaxSpeed() const
00371 {
00372 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return min(this->gcache.cached_max_track_speed, this->current_order.max_speed);
00373
00374 int max_speed = this->tcache.cached_max_curve_speed;
00375 assert(max_speed == this->GetCurveSpeedLimit());
00376
00377 if (IsRailStationTile(this->tile)) {
00378 StationID sid = GetStationIndex(this->tile);
00379 if (this->current_order.ShouldStopAtStation(this, sid)) {
00380 int station_ahead;
00381 int station_length;
00382 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00383
00384
00385
00386 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00387
00388 if (distance_to_go > 0) {
00389 int st_max_speed = 120;
00390
00391 int delta_v = this->cur_speed / (distance_to_go + 1);
00392 if (max_speed > (this->cur_speed - delta_v)) {
00393 st_max_speed = this->cur_speed - (delta_v / 10);
00394 }
00395
00396 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00397 max_speed = min(max_speed, st_max_speed);
00398 }
00399 }
00400 }
00401
00402 for (const Train *u = this; u != NULL; u = u->Next()) {
00403 if (u->track == TRACK_BIT_DEPOT) {
00404 max_speed = min(max_speed, 61);
00405 break;
00406 }
00407 }
00408
00409 max_speed = min(max_speed, this->current_order.max_speed);
00410 return min(max_speed, this->gcache.cached_max_track_speed);
00411 }
00412
00414 void Train::UpdateAcceleration()
00415 {
00416 assert(this->IsFrontEngine());
00417
00418 uint power = this->gcache.cached_power;
00419 uint weight = this->gcache.cached_weight;
00420 assert(weight != 0);
00421 this->acceleration = Clamp(power / weight * 4, 1, 255);
00422 }
00423
00429 int Train::GetDisplayImageWidth(Point *offset) const
00430 {
00431 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00432 int vehicle_pitch = 0;
00433
00434 const Engine *e = this->GetEngine();
00435 if (e->GetGRF() != NULL && is_custom_sprite(e->u.rail.image_index)) {
00436 reference_width = e->GetGRF()->traininfo_vehicle_width;
00437 vehicle_pitch = e->GetGRF()->traininfo_vehicle_pitch;
00438 }
00439
00440 if (offset != NULL) {
00441 offset->x = reference_width / 2;
00442 offset->y = vehicle_pitch;
00443 }
00444 return this->gcache.cached_veh_length * reference_width / VEHICLE_LENGTH;
00445 }
00446
00447 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00448 {
00449 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00450 }
00451
00458 SpriteID Train::GetImage(Direction direction, EngineImageType image_type) const
00459 {
00460 uint8 spritenum = this->spritenum;
00461 SpriteID sprite;
00462
00463 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00464
00465 if (is_custom_sprite(spritenum)) {
00466 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)), image_type);
00467 if (sprite != 0) return sprite;
00468
00469 spritenum = this->GetEngine()->original_image_index;
00470 }
00471
00472 sprite = GetDefaultTrainSprite(spritenum, direction);
00473
00474 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00475
00476 return sprite;
00477 }
00478
00479 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y, EngineImageType image_type)
00480 {
00481 const Engine *e = Engine::Get(engine);
00482 Direction dir = rear_head ? DIR_E : DIR_W;
00483 uint8 spritenum = e->u.rail.image_index;
00484
00485 if (is_custom_sprite(spritenum)) {
00486 SpriteID sprite = GetCustomVehicleIcon(engine, dir, image_type);
00487 if (sprite != 0) {
00488 if (e->GetGRF() != NULL) {
00489 y += e->GetGRF()->traininfo_vehicle_pitch;
00490 }
00491 return sprite;
00492 }
00493
00494 spritenum = Engine::Get(engine)->original_image_index;
00495 }
00496
00497 if (rear_head) spritenum++;
00498
00499 return GetDefaultTrainSprite(spritenum, DIR_W);
00500 }
00501
00502 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal, EngineImageType image_type)
00503 {
00504 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00505 int yf = y;
00506 int yr = y;
00507
00508 SpriteID spritef = GetRailIcon(engine, false, yf, image_type);
00509 SpriteID spriter = GetRailIcon(engine, true, yr, image_type);
00510 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00511 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00512
00513 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);
00514
00515 DrawSprite(spritef, pal, preferred_x - 14, yf);
00516 DrawSprite(spriter, pal, preferred_x + 15, yr);
00517 } else {
00518 SpriteID sprite = GetRailIcon(engine, false, y, image_type);
00519 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00520 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));
00521 DrawSprite(sprite, pal, preferred_x, y);
00522 }
00523 }
00524
00533 static CommandCost CmdBuildRailWagon(TileIndex tile, DoCommandFlag flags, const Engine *e, Vehicle **ret)
00534 {
00535 const RailVehicleInfo *rvi = &e->u.rail;
00536
00537
00538 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00539
00540 if (flags & DC_EXEC) {
00541 Train *v = new Train();
00542 *ret = v;
00543 v->spritenum = rvi->image_index;
00544
00545 v->engine_type = e->index;
00546 v->gcache.first_engine = INVALID_ENGINE;
00547
00548 DiagDirection dir = GetRailDepotDirection(tile);
00549
00550 v->direction = DiagDirToDir(dir);
00551 v->tile = tile;
00552
00553 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00554 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00555
00556 v->x_pos = x;
00557 v->y_pos = y;
00558 v->z_pos = GetSlopePixelZ(x, y);
00559 v->owner = _current_company;
00560 v->track = TRACK_BIT_DEPOT;
00561 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00562
00563 v->SetWagon();
00564
00565 v->SetFreeWagon();
00566 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00567
00568 v->cargo_type = e->GetDefaultCargoType();
00569 v->cargo_cap = rvi->capacity;
00570
00571 v->railtype = rvi->railtype;
00572
00573 v->build_year = _cur_year;
00574 v->cur_image = SPR_IMG_QUERY;
00575 v->random_bits = VehicleRandomBits();
00576
00577 v->group_id = DEFAULT_GROUP;
00578
00579 AddArticulatedParts(v);
00580
00581 _new_vehicle_id = v->index;
00582
00583 VehicleUpdatePosition(v);
00584 v->First()->ConsistChanged(false);
00585 UpdateTrainGroupID(v->First());
00586
00587 CheckConsistencyOfArticulatedVehicle(v);
00588
00589
00590 Train *w;
00591 FOR_ALL_TRAINS(w) {
00592 if (w->tile == tile &&
00593 w->IsFreeWagon() &&
00594 w->engine_type == e->index &&
00595 w->First() != v &&
00596 !(w->vehstatus & VS_CRASHED)) {
00597 DoCommand(0, v->index | 1 << 20, w->Last()->index, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00598 break;
00599 }
00600 }
00601 }
00602
00603 return CommandCost();
00604 }
00605
00607 static void NormalizeTrainVehInDepot(const Train *u)
00608 {
00609 const Train *v;
00610 FOR_ALL_TRAINS(v) {
00611 if (v->IsFreeWagon() && v->tile == u->tile &&
00612 v->track == TRACK_BIT_DEPOT) {
00613 if (DoCommand(0, v->index | 1 << 20, u->index, DC_EXEC,
00614 CMD_MOVE_RAIL_VEHICLE).Failed())
00615 break;
00616 }
00617 }
00618 }
00619
00620 static void AddRearEngineToMultiheadedTrain(Train *v)
00621 {
00622 Train *u = new Train();
00623 v->value >>= 1;
00624 u->value = v->value;
00625 u->direction = v->direction;
00626 u->owner = v->owner;
00627 u->tile = v->tile;
00628 u->x_pos = v->x_pos;
00629 u->y_pos = v->y_pos;
00630 u->z_pos = v->z_pos;
00631 u->track = TRACK_BIT_DEPOT;
00632 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00633 u->spritenum = v->spritenum + 1;
00634 u->cargo_type = v->cargo_type;
00635 u->cargo_subtype = v->cargo_subtype;
00636 u->cargo_cap = v->cargo_cap;
00637 u->railtype = v->railtype;
00638 u->engine_type = v->engine_type;
00639 u->build_year = v->build_year;
00640 u->cur_image = SPR_IMG_QUERY;
00641 u->random_bits = VehicleRandomBits();
00642 v->SetMultiheaded();
00643 u->SetMultiheaded();
00644 v->SetNext(u);
00645 VehicleUpdatePosition(u);
00646
00647
00648 v->other_multiheaded_part = u;
00649 u->other_multiheaded_part = v;
00650 }
00651
00661 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, const Engine *e, uint16 data, Vehicle **ret)
00662 {
00663 const RailVehicleInfo *rvi = &e->u.rail;
00664
00665 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(tile, flags, e, ret);
00666
00667
00668
00669 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00670
00671 if (flags & DC_EXEC) {
00672 DiagDirection dir = GetRailDepotDirection(tile);
00673 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00674 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00675
00676 Train *v = new Train();
00677 *ret = v;
00678 v->direction = DiagDirToDir(dir);
00679 v->tile = tile;
00680 v->owner = _current_company;
00681 v->x_pos = x;
00682 v->y_pos = y;
00683 v->z_pos = GetSlopePixelZ(x, y);
00684 v->track = TRACK_BIT_DEPOT;
00685 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00686 v->spritenum = rvi->image_index;
00687 v->cargo_type = e->GetDefaultCargoType();
00688 v->cargo_cap = rvi->capacity;
00689 v->last_station_visited = INVALID_STATION;
00690 v->last_loading_station = INVALID_STATION;
00691
00692 v->engine_type = e->index;
00693 v->gcache.first_engine = INVALID_ENGINE;
00694
00695 v->reliability = e->reliability;
00696 v->reliability_spd_dec = e->reliability_spd_dec;
00697 v->max_age = e->GetLifeLengthInDays();
00698
00699 v->railtype = rvi->railtype;
00700 _new_vehicle_id = v->index;
00701
00702 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00703 v->date_of_last_service = _date;
00704 v->build_year = _cur_year;
00705 v->cur_image = SPR_IMG_QUERY;
00706 v->random_bits = VehicleRandomBits();
00707
00708 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00709
00710 v->group_id = DEFAULT_GROUP;
00711
00712 v->SetFrontEngine();
00713 v->SetEngine();
00714
00715 VehicleUpdatePosition(v);
00716
00717 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00718 AddRearEngineToMultiheadedTrain(v);
00719 } else {
00720 AddArticulatedParts(v);
00721 }
00722
00723 v->ConsistChanged(false);
00724 UpdateTrainGroupID(v);
00725
00726 if (!HasBit(data, 0) && !(flags & DC_AUTOREPLACE)) {
00727 NormalizeTrainVehInDepot(v);
00728 }
00729
00730 CheckConsistencyOfArticulatedVehicle(v);
00731 }
00732
00733 return CommandCost();
00734 }
00735
00736 static Train *FindGoodVehiclePos(const Train *src)
00737 {
00738 EngineID eng = src->engine_type;
00739 TileIndex tile = src->tile;
00740
00741 Train *dst;
00742 FOR_ALL_TRAINS(dst) {
00743 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00744
00745 Train *t = dst;
00746 while (t->engine_type == eng) {
00747 t = t->Next();
00748 if (t == NULL) return dst;
00749 }
00750 }
00751 }
00752
00753 return NULL;
00754 }
00755
00757 typedef SmallVector<Train *, 16> TrainList;
00758
00764 static void MakeTrainBackup(TrainList &list, Train *t)
00765 {
00766 for (; t != NULL; t = t->Next()) *list.Append() = t;
00767 }
00768
00773 static void RestoreTrainBackup(TrainList &list)
00774 {
00775
00776 if (list.Length() == 0) return;
00777
00778 Train *prev = NULL;
00779
00780 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00781 Train *t = *iter;
00782 if (prev != NULL) {
00783 prev->SetNext(t);
00784 } else if (t->Previous() != NULL) {
00785
00786 t->Previous()->SetNext(NULL);
00787 }
00788 prev = t;
00789 }
00790 }
00791
00797 static void RemoveFromConsist(Train *part, bool chain = false)
00798 {
00799 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
00800
00801
00802
00803 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
00804
00805
00806 tail->SetNext(NULL);
00807 }
00808
00814 static void InsertInConsist(Train *dst, Train *chain)
00815 {
00816
00817 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
00818
00819 chain->Last()->SetNext(dst->Next());
00820 dst->SetNext(chain);
00821 }
00822
00828 static void NormaliseDualHeads(Train *t)
00829 {
00830 for (; t != NULL; t = t->GetNextVehicle()) {
00831 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
00832
00833
00834 Train *u;
00835 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
00836
00837 if (u == t->other_multiheaded_part) continue;
00838
00839
00840 RemoveFromConsist(t->other_multiheaded_part);
00841
00842 InsertInConsist(u, t->other_multiheaded_part);
00843 }
00844 }
00845
00850 static void NormaliseSubtypes(Train *chain)
00851 {
00852
00853 if (chain == NULL) return;
00854
00855
00856 assert(chain->Previous() == NULL);
00857
00858
00859 if (chain->IsWagon()) {
00860 chain->SetFreeWagon();
00861 } else {
00862 assert(chain->IsEngine());
00863 chain->SetFrontEngine();
00864 }
00865
00866
00867 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
00868 t->ClearFreeWagon();
00869 t->ClearFrontEngine();
00870 }
00871 }
00872
00882 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
00883 {
00884
00885
00886
00887 if ((src != NULL && src->IsEngine() ? 1 : 0) +
00888 (dst != NULL && dst->IsEngine() ? 1 : 0) -
00889 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
00890 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
00891 return CommandCost();
00892 }
00893
00894
00895
00896 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
00897
00898 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00899 }
00900
00906 static CommandCost CheckTrainAttachment(Train *t)
00907 {
00908
00909 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
00910
00911
00912
00913 int allowed_len = _settings_game.vehicle.max_train_length * TILE_SIZE - t->gcache.cached_veh_length;
00914
00915 Train *head = t;
00916 Train *prev = t;
00917
00918
00919 t = t->Next();
00920 prev->SetNext(NULL);
00921
00922
00923 head->InvalidateNewGRFCache();
00924
00925 while (t != NULL) {
00926 allowed_len -= t->gcache.cached_veh_length;
00927
00928 Train *next = t->Next();
00929
00930
00931
00932 t->SetNext(NULL);
00933
00934
00935 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
00936
00937 EngineID first_engine = t->gcache.first_engine;
00938 t->gcache.first_engine = INVALID_ENGINE;
00939
00940
00941
00942 t->InvalidateNewGRFCache();
00943
00944 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
00945
00946
00947 t->gcache.first_engine = first_engine;
00948
00949
00950 t->InvalidateNewGRFCache();
00951 head->InvalidateNewGRFCache();
00952
00953 if (callback != CALLBACK_FAILED) {
00954
00955 StringID error = STR_NULL;
00956
00957 if (head->GetGRF()->grf_version < 8) {
00958 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00959 if (callback < 0xFD) error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
00960 if (callback >= 0x100) ErrorUnknownCallbackResult(head->GetGRFID(), CBID_TRAIN_ALLOW_WAGON_ATTACH, callback);
00961 } else {
00962 if (callback < 0x400) {
00963 error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
00964 } else {
00965 switch (callback) {
00966 case 0x400:
00967 case 0x401:
00968 break;
00969
00970 default:
00971 case 0x402:
00972 error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00973 break;
00974 }
00975 }
00976 }
00977
00978 if (error != STR_NULL) return_cmd_error(error);
00979 }
00980 }
00981
00982
00983 prev->SetNext(t);
00984 prev = t;
00985 t = next;
00986 }
00987
00988 if (allowed_len < 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
00989 return CommandCost();
00990 }
00991
01002 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
01003 {
01004
01005 CommandCost ret = CheckTrainAttachment(src);
01006 if (ret.Failed()) return ret;
01007 ret = CheckTrainAttachment(dst);
01008 if (ret.Failed()) return ret;
01009
01010
01011 return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
01012 }
01013
01022 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01023 {
01024
01025 if (*src_head == *dst_head) {
01026
01027
01028 *dst_head = NULL;
01029 } else if (*dst_head == NULL) {
01030
01031
01032 *dst_head = src;
01033 }
01034
01035 if (src == *src_head) {
01036
01037
01038
01039
01040
01041
01042 *src_head = move_chain ? NULL :
01043 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01044 }
01045
01046
01047
01048
01049 RemoveFromConsist(src, move_chain);
01050 if (*dst_head != src) InsertInConsist(dst, src);
01051
01052
01053
01054 NormaliseDualHeads(*src_head);
01055 NormaliseDualHeads(*dst_head);
01056 }
01057
01063 static void NormaliseTrainHead(Train *head)
01064 {
01065
01066 if (head == NULL) return;
01067
01068
01069 head->ConsistChanged(false);
01070 UpdateTrainGroupID(head);
01071
01072
01073 if (!head->IsFrontEngine()) return;
01074
01075
01076 InvalidateWindowData(WC_VEHICLE_REFIT, head->index);
01077 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, WID_VV_REFIT);
01078
01079
01080 if (head->unitnumber != 0) return;
01081 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01082 }
01083
01096 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01097 {
01098 VehicleID s = GB(p1, 0, 20);
01099 VehicleID d = GB(p2, 0, 20);
01100 bool move_chain = HasBit(p1, 20);
01101
01102 Train *src = Train::GetIfValid(s);
01103 if (src == NULL) return CMD_ERROR;
01104
01105 CommandCost ret = CheckOwnership(src->owner);
01106 if (ret.Failed()) return ret;
01107
01108
01109 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01110
01111
01112 Train *dst;
01113 if (d == INVALID_VEHICLE) {
01114 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01115 } else {
01116 dst = Train::GetIfValid(d);
01117 if (dst == NULL) return CMD_ERROR;
01118
01119 CommandCost ret = CheckOwnership(dst->owner);
01120 if (ret.Failed()) return ret;
01121
01122
01123 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01124 }
01125
01126
01127 src = src->GetFirstEnginePart();
01128 if (dst != NULL) {
01129 dst = dst->GetFirstEnginePart();
01130 }
01131
01132
01133 if (src == dst) return CommandCost();
01134
01135
01136 Train *src_head = src->First();
01137 Train *dst_head;
01138 if (dst != NULL) {
01139 dst_head = dst->First();
01140 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01141
01142 dst = dst->GetLastEnginePart();
01143 } else {
01144 dst_head = NULL;
01145 }
01146
01147 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01148
01149
01150 if (move_chain && src_head == dst_head) return CommandCost();
01151
01152
01153 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01154
01155
01156 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01157
01158
01159 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01160
01161
01162
01163 TrainList original_src;
01164 TrainList original_dst;
01165
01166 MakeTrainBackup(original_src, src_head);
01167 MakeTrainBackup(original_dst, dst_head);
01168
01169
01170
01171
01172 Train *original_src_head = src_head;
01173 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01174
01175
01176 bool original_src_head_front_engine = original_src_head != NULL && original_src_head->IsFrontEngine();
01177 bool original_dst_head_front_engine = original_dst_head != NULL && original_dst_head->IsFrontEngine();
01178
01179
01180 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01181
01182 if ((flags & DC_AUTOREPLACE) == 0) {
01183
01184
01185
01186 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
01187 if (ret.Failed()) {
01188
01189 RestoreTrainBackup(original_src);
01190 RestoreTrainBackup(original_dst);
01191 return ret;
01192 }
01193 }
01194
01195
01196 if (flags & DC_EXEC) {
01197
01198 if (original_src_head_front_engine) GroupStatistics::CountVehicle(original_src_head, -1);
01199 if (original_dst_head_front_engine) GroupStatistics::CountVehicle(original_dst_head, -1);
01200
01201
01202 NormaliseSubtypes(src_head);
01203 NormaliseSubtypes(dst_head);
01204
01205
01206
01207
01208
01209
01210
01211
01212
01213
01214
01215
01216
01217
01218
01219
01220
01221
01222
01223
01224
01225 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01226
01227 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01228 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01229 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01230 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01231 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01232 SetWindowDirty(WC_COMPANY, _current_company);
01233
01234
01235
01236 DeleteVehicleOrders(src);
01237 RemoveVehicleFromGroup(src);
01238 src->unitnumber = 0;
01239 }
01240
01241
01242
01243 if (original_src_head != src && dst_head == src) {
01244 SetTrainGroupID(src, DEFAULT_GROUP);
01245 SetWindowDirty(WC_COMPANY, _current_company);
01246 }
01247
01248
01249 if (src_head != NULL && src_head->IsFrontEngine()) GroupStatistics::CountVehicle(src_head, 1);
01250 if (dst_head != NULL && dst_head->IsFrontEngine()) GroupStatistics::CountVehicle(dst_head, 1);
01251
01252
01253 NormaliseTrainHead(src_head);
01254 NormaliseTrainHead(dst_head);
01255
01256 if ((flags & DC_NO_CARGO_CAP_CHECK) == 0) {
01257 CheckCargoCapacity(src_head);
01258 CheckCargoCapacity(dst_head);
01259 }
01260
01261
01262 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01263 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01264 } else {
01265
01266 RestoreTrainBackup(original_src);
01267 RestoreTrainBackup(original_dst);
01268 }
01269
01270 return CommandCost();
01271 }
01272
01284 CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint32 user)
01285 {
01286
01287 Window *w = NULL;
01288
01289
01290 bool sell_chain = HasBit(data, 0);
01291
01292 Train *v = Train::From(t)->GetFirstEnginePart();
01293 Train *first = v->First();
01294
01295 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01296
01297
01298
01299 TrainList original;
01300 MakeTrainBackup(original, first);
01301
01302
01303 Train *new_head = first;
01304 Train *sell_head = NULL;
01305
01306
01307 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01308
01309
01310 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
01311 if (ret.Failed()) {
01312
01313 RestoreTrainBackup(original);
01314 return ret;
01315 }
01316
01317 CommandCost cost(EXPENSES_NEW_VEHICLES);
01318 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01319
01320 if (first->orders.list == NULL && !OrderList::CanAllocateItem()) {
01321 return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
01322 }
01323
01324
01325 if (flags & DC_EXEC) {
01326
01327 NormaliseSubtypes(new_head);
01328
01329 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01330
01331
01332 new_head->orders.list = first->orders.list;
01333 new_head->AddToShared(first);
01334 DeleteVehicleOrders(first);
01335
01336
01337 new_head->CopyVehicleConfigAndStatistics(first);
01338 GroupStatistics::CountVehicle(new_head, 1);
01339
01340
01341 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01342 } else if (v->IsPrimaryVehicle() && data & (MAKE_ORDER_BACKUP_FLAG >> 20)) {
01343 OrderBackup::Backup(v, user);
01344 }
01345
01346
01347 NormaliseTrainHead(new_head);
01348
01349
01350 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01351 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01352
01353
01354 delete sell_head;
01355 } else {
01356
01357 RestoreTrainBackup(original);
01358 }
01359
01360 return cost;
01361 }
01362
01363 void Train::UpdateDeltaXY(Direction direction)
01364 {
01365
01366 this->x_offs = -1;
01367 this->y_offs = -1;
01368 this->x_extent = 3;
01369 this->y_extent = 3;
01370 this->z_extent = 6;
01371 this->x_bb_offs = 0;
01372 this->y_bb_offs = 0;
01373
01374 if (!IsDiagonalDirection(direction)) {
01375 static const int _sign_table[] =
01376 {
01377
01378 -1, -1,
01379 -1, 1,
01380 1, 1,
01381 1, -1,
01382 };
01383
01384 int half_shorten = (VEHICLE_LENGTH - this->gcache.cached_veh_length) / 2;
01385
01386
01387 this->x_offs -= half_shorten * _sign_table[direction];
01388 this->y_offs -= half_shorten * _sign_table[direction + 1];
01389 this->x_extent += this->x_bb_offs = half_shorten * _sign_table[direction];
01390 this->y_extent += this->y_bb_offs = half_shorten * _sign_table[direction + 1];
01391 } else {
01392 switch (direction) {
01393
01394
01395 case DIR_NE:
01396 this->x_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01397 this->x_extent = this->gcache.cached_veh_length - 1;
01398 this->x_bb_offs = -1;
01399 break;
01400
01401 case DIR_NW:
01402 this->y_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01403 this->y_extent = this->gcache.cached_veh_length - 1;
01404 this->y_bb_offs = -1;
01405 break;
01406
01407
01408
01409 case DIR_SW:
01410 this->x_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01411 this->x_extent = VEHICLE_LENGTH - 1;
01412 this->x_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01413 break;
01414
01415 case DIR_SE:
01416 this->y_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01417 this->y_extent = VEHICLE_LENGTH - 1;
01418 this->y_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01419 break;
01420
01421 default:
01422 NOT_REACHED();
01423 }
01424 }
01425 }
01426
01431 static void MarkTrainAsStuck(Train *v)
01432 {
01433 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01434
01435 SetBit(v->flags, VRF_TRAIN_STUCK);
01436
01437 v->wait_counter = 0;
01438
01439
01440 v->cur_speed = 0;
01441 v->subspeed = 0;
01442 v->SetLastSpeed();
01443
01444 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01445 }
01446 }
01447
01455 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01456 {
01457 uint16 flag1 = *swap_flag1;
01458 uint16 flag2 = *swap_flag2;
01459
01460
01461 ClrBit(*swap_flag1, GVF_GOINGUP_BIT);
01462 ClrBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01463 ClrBit(*swap_flag2, GVF_GOINGUP_BIT);
01464 ClrBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01465
01466
01467 if (HasBit(flag1, GVF_GOINGUP_BIT)) {
01468 SetBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01469 } else if (HasBit(flag1, GVF_GOINGDOWN_BIT)) {
01470 SetBit(*swap_flag2, GVF_GOINGUP_BIT);
01471 }
01472 if (HasBit(flag2, GVF_GOINGUP_BIT)) {
01473 SetBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01474 } else if (HasBit(flag2, GVF_GOINGDOWN_BIT)) {
01475 SetBit(*swap_flag1, GVF_GOINGUP_BIT);
01476 }
01477 }
01478
01483 static void UpdateStatusAfterSwap(Train *v)
01484 {
01485
01486 if (v->track != TRACK_BIT_DEPOT) v->direction = ReverseDir(v->direction);
01487
01488
01489 if (v->track != TRACK_BIT_WORMHOLE) {
01490 VehicleEnterTile(v, v->tile, v->x_pos, v->y_pos);
01491 } else {
01492
01493
01494
01495
01496 TileIndex vt = TileVirtXY(v->x_pos, v->y_pos);
01497 if (IsTileType(vt, MP_TUNNELBRIDGE)) {
01498 VehicleEnterTile(v, vt, v->x_pos, v->y_pos);
01499 if (v->track != TRACK_BIT_WORMHOLE && IsBridgeTile(v->tile)) {
01500
01501
01502
01503 VehicleUpdatePosition(v);
01504 v->UpdateInclination(true, true);
01505 return;
01506 }
01507 }
01508 }
01509
01510 VehicleUpdatePosition(v);
01511 v->UpdateViewport(true, true);
01512 }
01513
01520 void ReverseTrainSwapVeh(Train *v, int l, int r)
01521 {
01522 Train *a, *b;
01523
01524
01525 for (a = v; l != 0; l--) a = a->Next();
01526 for (b = v; r != 0; r--) b = b->Next();
01527
01528 if (a != b) {
01529
01530 {
01531 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus & VS_HIDDEN);
01532 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus & VS_HIDDEN);
01533 a->vehstatus = tmp;
01534 }
01535
01536 Swap(a->track, b->track);
01537 Swap(a->direction, b->direction);
01538 Swap(a->x_pos, b->x_pos);
01539 Swap(a->y_pos, b->y_pos);
01540 Swap(a->tile, b->tile);
01541 Swap(a->z_pos, b->z_pos);
01542
01543 SwapTrainFlags(&a->gv_flags, &b->gv_flags);
01544
01545 UpdateStatusAfterSwap(a);
01546 UpdateStatusAfterSwap(b);
01547 } else {
01548
01549
01550
01551 SwapTrainFlags(&a->gv_flags, &a->gv_flags);
01552 UpdateStatusAfterSwap(a);
01553 }
01554 }
01555
01556
01562 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01563 {
01564 return (v->type == VEH_TRAIN) ? v : NULL;
01565 }
01566
01567
01574 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01575 {
01576 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01577
01578 Train *t = Train::From(v);
01579 if (!t->IsFrontEngine()) return NULL;
01580
01581 TileIndex tile = *(TileIndex *)data;
01582
01583 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01584
01585 return t;
01586 }
01587
01588
01595 static bool TrainApproachingCrossing(TileIndex tile)
01596 {
01597 assert(IsLevelCrossingTile(tile));
01598
01599 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01600 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01601
01602 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01603
01604 dir = ReverseDiagDir(dir);
01605 tile_from = tile + TileOffsByDiagDir(dir);
01606
01607 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01608 }
01609
01610
01617 void UpdateLevelCrossing(TileIndex tile, bool sound)
01618 {
01619 assert(IsLevelCrossingTile(tile));
01620
01621
01622 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01623
01624 if (new_state != IsCrossingBarred(tile)) {
01625 if (new_state && sound) {
01626 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01627 }
01628 SetCrossingBarred(tile, new_state);
01629 MarkTileDirtyByTile(tile);
01630 }
01631 }
01632
01633
01639 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01640 {
01641 if (!IsCrossingBarred(tile)) {
01642 BarCrossing(tile);
01643 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01644 MarkTileDirtyByTile(tile);
01645 }
01646 }
01647
01648
01654 static void AdvanceWagonsBeforeSwap(Train *v)
01655 {
01656 Train *base = v;
01657 Train *first = base;
01658 Train *last = v->Last();
01659 uint length = CountVehiclesInChain(v);
01660
01661 while (length > 2) {
01662 last = last->Previous();
01663 first = first->Next();
01664
01665 int differential = base->CalcNextVehicleOffset() - last->CalcNextVehicleOffset();
01666
01667
01668
01669 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01670
01671 base = first;
01672 length -= 2;
01673 }
01674 }
01675
01676
01682 static void AdvanceWagonsAfterSwap(Train *v)
01683 {
01684
01685 Train *dep = v;
01686 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01687 dep = dep->Next();
01688 }
01689
01690 Train *leave = dep->Next();
01691
01692 if (leave != NULL) {
01693
01694 int d = TicksToLeaveDepot(dep);
01695
01696 if (d <= 0) {
01697 leave->vehstatus &= ~VS_HIDDEN;
01698 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01699 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01700 }
01701 } else {
01702 dep = NULL;
01703 }
01704
01705 Train *base = v;
01706 Train *first = base;
01707 Train *last = v->Last();
01708 uint length = CountVehiclesInChain(v);
01709
01710
01711
01712 bool nomove = (dep == NULL);
01713
01714 while (length > 2) {
01715
01716
01717 if (base == dep) break;
01718
01719
01720 if (last == dep) nomove = true;
01721
01722 last = last->Previous();
01723 first = first->Next();
01724
01725 int differential = last->CalcNextVehicleOffset() - base->CalcNextVehicleOffset();
01726
01727
01728 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01729
01730 base = first;
01731 length -= 2;
01732 }
01733 }
01734
01739 void ReverseTrainDirection(Train *v)
01740 {
01741 if (IsRailDepotTile(v->tile)) {
01742 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01743 }
01744
01745
01746 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01747
01748
01749 TileIndex crossing = TrainApproachingCrossingTile(v);
01750
01751
01752 int r = CountVehiclesInChain(v) - 1;
01753
01754 AdvanceWagonsBeforeSwap(v);
01755
01756
01757 int l = 0;
01758 do {
01759 ReverseTrainSwapVeh(v, l++, r--);
01760 } while (l <= r);
01761
01762 AdvanceWagonsAfterSwap(v);
01763
01764 if (IsRailDepotTile(v->tile)) {
01765 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01766 }
01767
01768 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01769
01770 ClrBit(v->flags, VRF_REVERSING);
01771
01772
01773 v->ConsistChanged(true);
01774
01775
01776 for (Train *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01777
01778
01779 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01780
01781
01782 crossing = TrainApproachingCrossingTile(v);
01783 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01784
01785
01786 if (v->track == TRACK_BIT_DEPOT) {
01787
01788 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01789 ClrBit(v->flags, VRF_TRAIN_STUCK);
01790 return;
01791 }
01792
01793
01794
01795 DiagDirection dir = TrainExitDir(v->direction, v->track);
01796 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01797
01798 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01799
01800
01801 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01802 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01803 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01804
01805
01806 if (IsRailDepotTile(v->tile) && TrackdirToExitdir(v->GetVehicleTrackdir()) == GetRailDepotDirection(v->tile)) first_tile_okay = false;
01807
01808 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01809 if (TryPathReserve(v, false, first_tile_okay)) {
01810
01811 CheckNextTrainTile(v);
01812 } else if (v->current_order.GetType() != OT_LOADING) {
01813
01814 MarkTrainAsStuck(v);
01815 }
01816 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01817
01818 ClrBit(v->flags, VRF_TRAIN_STUCK);
01819 v->wait_counter = 0;
01820 }
01821 }
01822
01832 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01833 {
01834 Train *v = Train::GetIfValid(p1);
01835 if (v == NULL) return CMD_ERROR;
01836
01837 CommandCost ret = CheckOwnership(v->owner);
01838 if (ret.Failed()) return ret;
01839
01840 if (p2 != 0) {
01841
01842
01843 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01844 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01845 }
01846 if (!HasBit(EngInfo(v->engine_type)->misc_flags, EF_RAIL_FLIPS)) return CMD_ERROR;
01847
01848 Train *front = v->First();
01849
01850 if (!front->IsStoppedInDepot()) {
01851 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01852 }
01853
01854 if (flags & DC_EXEC) {
01855 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01856
01857 front->ConsistChanged(false);
01858 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
01859 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
01860 SetWindowDirty(WC_VEHICLE_VIEW, front->index);
01861 SetWindowClassesDirty(WC_TRAINS_LIST);
01862 }
01863 } else {
01864
01865 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01866
01867 if (flags & DC_EXEC) {
01868
01869 if (v->current_order.IsType(OT_LOADING)) {
01870 const Vehicle *last = v;
01871 while (last->Next() != NULL) last = last->Next();
01872
01873
01874 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01875 v->LeaveStation();
01876 }
01877 }
01878
01879
01880 v->force_proceed = TFP_NONE;
01881 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01882
01883 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01884 ToggleBit(v->flags, VRF_REVERSING);
01885 } else {
01886 v->cur_speed = 0;
01887 v->SetLastSpeed();
01888 HideFillingPercent(&v->fill_percent_te_id);
01889 ReverseTrainDirection(v);
01890 }
01891 }
01892 }
01893 return CommandCost();
01894 }
01895
01905 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01906 {
01907 Train *t = Train::GetIfValid(p1);
01908 if (t == NULL) return CMD_ERROR;
01909
01910 if (!t->IsPrimaryVehicle()) return CMD_ERROR;
01911
01912 CommandCost ret = CheckOwnership(t->owner);
01913 if (ret.Failed()) return ret;
01914
01915
01916 if (flags & DC_EXEC) {
01917
01918
01919
01920
01921
01922 t->force_proceed = t->force_proceed == TFP_SIGNAL ? TFP_NONE : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsChainInDepot() ? TFP_STUCK : TFP_SIGNAL;
01923 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
01924 }
01925
01926 return CommandCost();
01927 }
01928
01936 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
01937 {
01938 assert(!(v->vehstatus & VS_CRASHED));
01939
01940 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
01941
01942 PBSTileInfo origin = FollowTrainReservation(v);
01943 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
01944
01945 switch (_settings_game.pf.pathfinder_for_trains) {
01946 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
01947 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
01948
01949 default: NOT_REACHED();
01950 }
01951 }
01952
01960 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
01961 {
01962 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
01963 if (tfdd.best_length == UINT_MAX) return false;
01964
01965 if (location != NULL) *location = tfdd.tile;
01966 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
01967 if (reverse != NULL) *reverse = tfdd.reverse;
01968
01969 return true;
01970 }
01971
01973 void Train::PlayLeaveStationSound() const
01974 {
01975 static const SoundFx sfx[] = {
01976 SND_04_TRAIN,
01977 SND_0A_TRAIN_HORN,
01978 SND_0A_TRAIN_HORN,
01979 SND_47_MAGLEV_2,
01980 SND_41_MAGLEV
01981 };
01982
01983 if (PlayVehicleSound(this, VSE_START)) return;
01984
01985 EngineID engtype = this->engine_type;
01986 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
01987 }
01988
01993 static void CheckNextTrainTile(Train *v)
01994 {
01995
01996 if (_settings_game.pf.path_backoff_interval == 255) return;
01997
01998
01999 if (v->track == TRACK_BIT_DEPOT) return;
02000
02001 switch (v->current_order.GetType()) {
02002
02003 case OT_GOTO_DEPOT:
02004 if (v->tile == v->dest_tile) return;
02005 break;
02006
02007 case OT_GOTO_WAYPOINT:
02008
02009 if (IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
02010 break;
02011
02012 case OT_NOTHING:
02013 case OT_LEAVESTATION:
02014 case OT_LOADING:
02015
02016 if (v->GetNumOrders() > 0) return;
02017 break;
02018
02019 default:
02020 break;
02021 }
02022
02023 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02024
02025 Trackdir td = v->GetVehicleTrackdir();
02026
02027
02028 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02029 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02030 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02031
02032 CFollowTrackRail ft(v);
02033 if (!ft.Follow(v->tile, td)) return;
02034
02035 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02036
02037 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02038 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02039
02040 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02041 if (_settings_game.pf.forbid_90_deg) {
02042 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02043 }
02044 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02045 }
02046 }
02047 }
02048 }
02049
02055 static bool CheckTrainStayInDepot(Train *v)
02056 {
02057
02058 for (const Train *u = v; u != NULL; u = u->Next()) {
02059 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02060 }
02061
02062
02063 if (v->gcache.cached_power == 0) {
02064 v->vehstatus |= VS_STOPPED;
02065 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02066 return true;
02067 }
02068
02069 SigSegState seg_state;
02070
02071 if (v->force_proceed == TFP_NONE) {
02072
02073 if (++v->wait_counter < 37) {
02074 SetWindowClassesDirty(WC_TRAINS_LIST);
02075 return true;
02076 }
02077
02078 v->wait_counter = 0;
02079
02080 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02081 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02082
02083 SetWindowClassesDirty(WC_TRAINS_LIST);
02084 return true;
02085 }
02086 } else {
02087 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02088 }
02089
02090
02091 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02092
02093 if (HasDepotReservation(v->tile)) return true;
02094 SetDepotReservation(v->tile, true);
02095 VehicleEnterDepot(v);
02096 return true;
02097 }
02098
02099
02100 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == TFP_NONE) {
02101
02102 SetWindowClassesDirty(WC_TRAINS_LIST);
02103 MarkTrainAsStuck(v);
02104 return true;
02105 }
02106
02107 SetDepotReservation(v->tile, true);
02108 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02109
02110 VehicleServiceInDepot(v);
02111 SetWindowClassesDirty(WC_TRAINS_LIST);
02112 v->PlayLeaveStationSound();
02113
02114 v->track = TRACK_BIT_X;
02115 if (v->direction & 2) v->track = TRACK_BIT_Y;
02116
02117 v->vehstatus &= ~VS_HIDDEN;
02118 v->cur_speed = 0;
02119
02120 v->UpdateViewport(true, true);
02121 VehicleUpdatePosition(v);
02122 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02123 v->UpdateAcceleration();
02124 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02125
02126 return false;
02127 }
02128
02135 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02136 {
02137 DiagDirection dir = TrackdirToExitdir(track_dir);
02138
02139 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02140
02141 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02142 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02143
02144 if (TunnelBridgeIsFree(tile, end, v).Succeeded()) {
02145
02146 SetTunnelBridgeReservation(tile, false);
02147 SetTunnelBridgeReservation(end, false);
02148
02149 if (_settings_client.gui.show_track_reservation) {
02150 MarkTileDirtyByTile(tile);
02151 MarkTileDirtyByTile(end);
02152 }
02153 }
02154 }
02155 } else if (IsRailStationTile(tile)) {
02156 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02157
02158
02159 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02160 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02161 }
02162 } else {
02163
02164 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02165 }
02166 }
02167
02174 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02175 {
02176 assert(v->IsFrontEngine());
02177
02178 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02179 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02180 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02181 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02182
02183
02184 if (IsRailDepotTile(tile) && TrackdirToExitdir(td) != GetRailDepotDirection(tile)) return;
02185 if (v->track == TRACK_BIT_DEPOT) {
02186
02187 for (const Train *u = v; u != NULL; u = u->Next()) {
02188 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return;
02189 }
02190 }
02191
02192 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02193
02194 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02195 while (ft.Follow(tile, td)) {
02196 tile = ft.m_new_tile;
02197 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02198 td = RemoveFirstTrackdir(&bits);
02199 assert(bits == TRACKDIR_BIT_NONE);
02200
02201 if (!IsValidTrackdir(td)) break;
02202
02203 if (IsTileType(tile, MP_RAILWAY)) {
02204 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02205
02206 UnreserveRailTrack(tile, TrackdirToTrack(td));
02207 break;
02208 }
02209 if (HasPbsSignalOnTrackdir(tile, td)) {
02210 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02211
02212 break;
02213 } else {
02214
02215 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02216 MarkTileDirtyByTile(tile);
02217 }
02218 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02219 break;
02220 }
02221 }
02222
02223
02224 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);
02225
02226 free_tile = true;
02227 }
02228 }
02229
02230 static const byte _initial_tile_subcoord[6][4][3] = {
02231 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02232 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02233 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02234 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02235 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02236 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02237 };
02238
02251 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool &path_found, bool do_track_reservation, PBSTileInfo *dest)
02252 {
02253 switch (_settings_game.pf.pathfinder_for_trains) {
02254 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02255 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02256
02257 default: NOT_REACHED();
02258 }
02259 }
02260
02266 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02267 {
02268 PBSTileInfo origin = FollowTrainReservation(v);
02269
02270 CFollowTrackRail ft(v);
02271
02272 TileIndex tile = origin.tile;
02273 Trackdir cur_td = origin.trackdir;
02274 while (ft.Follow(tile, cur_td)) {
02275 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02276
02277 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02278 }
02279
02280 if (_settings_game.pf.forbid_90_deg) {
02281 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02282 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02283 }
02284
02285
02286 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02287 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02288
02289
02290
02291
02292
02293
02294 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02295
02296
02297
02298 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02299
02300
02301 if (new_tracks != NULL) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02302 if (enterdir != NULL) *enterdir = ft.m_exitdir;
02303 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02304 }
02305
02306 tile = ft.m_new_tile;
02307 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02308
02309 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02310 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02311 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02312
02313 return PBSTileInfo(tile, cur_td, true);
02314 }
02315
02316 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02317 }
02318
02319 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02320
02321 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02322 }
02323
02324
02325 tile = origin.tile;
02326 cur_td = origin.trackdir;
02327 TileIndex stopped = ft.m_old_tile;
02328 Trackdir stopped_td = ft.m_old_td;
02329 while (tile != stopped || cur_td != stopped_td) {
02330 if (!ft.Follow(tile, cur_td)) break;
02331
02332 if (_settings_game.pf.forbid_90_deg) {
02333 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02334 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02335 }
02336 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02337
02338 tile = ft.m_new_tile;
02339 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02340
02341 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02342 }
02343
02344
02345 return PBSTileInfo();
02346 }
02347
02358 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02359 {
02360 switch (_settings_game.pf.pathfinder_for_trains) {
02361 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02362 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02363
02364 default: NOT_REACHED();
02365 }
02366 }
02367
02369 class VehicleOrderSaver {
02370 private:
02371 Train *v;
02372 Order old_order;
02373 TileIndex old_dest_tile;
02374 StationID old_last_station_visited;
02375 VehicleOrderID index;
02376 bool suppress_implicit_orders;
02377
02378 public:
02379 VehicleOrderSaver(Train *_v) :
02380 v(_v),
02381 old_order(_v->current_order),
02382 old_dest_tile(_v->dest_tile),
02383 old_last_station_visited(_v->last_station_visited),
02384 index(_v->cur_real_order_index),
02385 suppress_implicit_orders(HasBit(_v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS))
02386 {
02387 }
02388
02389 ~VehicleOrderSaver()
02390 {
02391 this->v->current_order = this->old_order;
02392 this->v->dest_tile = this->old_dest_tile;
02393 this->v->last_station_visited = this->old_last_station_visited;
02394 SB(this->v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS, 1, suppress_implicit_orders ? 1: 0);
02395 }
02396
02402 bool SwitchToNextOrder(bool skip_first)
02403 {
02404 if (this->v->GetNumOrders() == 0) return false;
02405
02406 if (skip_first) ++this->index;
02407
02408 int depth = 0;
02409
02410 do {
02411
02412 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02413
02414 Order *order = this->v->GetOrder(this->index);
02415 assert(order != NULL);
02416
02417 switch (order->GetType()) {
02418 case OT_GOTO_DEPOT:
02419
02420 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02421 case OT_GOTO_STATION:
02422 case OT_GOTO_WAYPOINT:
02423 this->v->current_order = *order;
02424 return UpdateOrderDest(this->v, order, 0, true);
02425 case OT_CONDITIONAL: {
02426 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02427 if (next != INVALID_VEH_ORDER_ID) {
02428 depth++;
02429 this->index = next;
02430
02431 continue;
02432 }
02433 break;
02434 }
02435 default:
02436 break;
02437 }
02438
02439
02440 ++this->index;
02441 depth++;
02442 } while (this->index != this->v->cur_real_order_index && depth < this->v->GetNumOrders());
02443
02444 return false;
02445 }
02446 };
02447
02448
02449 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02450 {
02451 Track best_track = INVALID_TRACK;
02452 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02453 bool changed_signal = false;
02454
02455 assert((tracks & ~TRACK_BIT_MASK) == 0);
02456
02457 if (got_reservation != NULL) *got_reservation = false;
02458
02459
02460 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02461
02462 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02463
02464
02465 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02466 Track track = FindFirstTrack(tracks);
02467
02468 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02469 do_track_reservation = true;
02470 changed_signal = true;
02471 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02472 } else if (!do_track_reservation) {
02473 return track;
02474 }
02475 best_track = track;
02476 }
02477
02478 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02479 DiagDirection dest_enterdir = enterdir;
02480 if (do_track_reservation) {
02481 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02482 if (res_dest.tile == INVALID_TILE) {
02483
02484 if (mark_stuck) MarkTrainAsStuck(v);
02485 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02486 return FindFirstTrack(tracks);
02487 }
02488 if (res_dest.okay) {
02489
02490 if (got_reservation != NULL) *got_reservation = true;
02491 if (changed_signal) MarkTileDirtyByTile(tile);
02492 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02493 return best_track;
02494 }
02495
02496
02497
02498
02499 CheckIfTrainNeedsService(v);
02500 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02501 }
02502
02503
02504 VehicleOrderSaver orders(v);
02505
02506
02507
02508
02509
02510
02511
02512 if (v->current_order.IsType(OT_LEAVESTATION)) {
02513 orders.SwitchToNextOrder(false);
02514 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02515 v->current_order.IsType(OT_GOTO_STATION) ?
02516 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02517 v->tile == v->dest_tile))) {
02518 orders.SwitchToNextOrder(true);
02519 }
02520
02521 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02522
02523 bool path_found = true;
02524 TileIndex new_tile = res_dest.tile;
02525
02526 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, path_found, do_track_reservation, &res_dest);
02527 if (new_tile == tile) best_track = next_track;
02528 v->HandlePathfindingResult(path_found);
02529 }
02530
02531
02532 if (!do_track_reservation) return best_track;
02533
02534
02535 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02536 if (mark_stuck) MarkTrainAsStuck(v);
02537 FreeTrainTrackReservation(v);
02538 return best_track;
02539 }
02540
02541
02542 if (res_dest.tile == INVALID_TILE) {
02543
02544 PBSTileInfo origin = FollowTrainReservation(v);
02545 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02546 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02547 best_track = FindFirstTrack(res);
02548 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02549 if (got_reservation != NULL) *got_reservation = true;
02550 if (changed_signal) MarkTileDirtyByTile(tile);
02551 } else {
02552 FreeTrainTrackReservation(v);
02553 if (mark_stuck) MarkTrainAsStuck(v);
02554 }
02555 return best_track;
02556 }
02557
02558 if (got_reservation != NULL) *got_reservation = true;
02559
02560
02561 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02562
02563 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02564 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02565 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02566 if (_settings_game.pf.forbid_90_deg) {
02567 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02568 }
02569
02570
02571 if (orders.SwitchToNextOrder(true)) {
02572 PBSTileInfo cur_dest;
02573 bool path_found;
02574 DoTrainPathfind(v, next_tile, exitdir, reachable, path_found, true, &cur_dest);
02575 if (cur_dest.tile != INVALID_TILE) {
02576 res_dest = cur_dest;
02577 if (res_dest.okay) continue;
02578
02579 FreeTrainTrackReservation(v);
02580 if (mark_stuck) MarkTrainAsStuck(v);
02581 if (got_reservation != NULL) *got_reservation = false;
02582 changed_signal = false;
02583 break;
02584 }
02585 }
02586
02587 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02588 FreeTrainTrackReservation(v);
02589 if (mark_stuck) MarkTrainAsStuck(v);
02590 if (got_reservation != NULL) *got_reservation = false;
02591 changed_signal = false;
02592 }
02593 break;
02594 }
02595
02596 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02597
02598 if (changed_signal) MarkTileDirtyByTile(tile);
02599
02600 return best_track;
02601 }
02602
02611 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02612 {
02613 assert(v->IsFrontEngine());
02614
02615
02616
02617
02618 if (v->track == TRACK_BIT_DEPOT) {
02619 if (HasDepotReservation(v->tile)) {
02620 if (mark_as_stuck) MarkTrainAsStuck(v);
02621 return false;
02622 } else {
02623
02624 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02625 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02626 }
02627 }
02628
02629 Vehicle *other_train = NULL;
02630 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02631
02632
02633
02634
02635
02636 if (other_train != NULL && other_train->index != v->index) {
02637 if (mark_as_stuck) MarkTrainAsStuck(v);
02638 return false;
02639 }
02640
02641 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02642
02643 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02644 ClrBit(v->flags, VRF_TRAIN_STUCK);
02645 return true;
02646 }
02647
02648
02649 if (v->track == TRACK_BIT_DEPOT) {
02650 SetDepotReservation(v->tile, true);
02651 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02652 }
02653
02654 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02655 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02656 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02657
02658 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02659
02660 bool res_made = false;
02661 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02662
02663 if (!res_made) {
02664
02665 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02666 return false;
02667 }
02668
02669 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02670 v->wait_counter = 0;
02671 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02672 }
02673 ClrBit(v->flags, VRF_TRAIN_STUCK);
02674 return true;
02675 }
02676
02677
02678 static bool CheckReverseTrain(const Train *v)
02679 {
02680 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02681 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02682 !(v->direction & 1)) {
02683 return false;
02684 }
02685
02686 assert(v->track != TRACK_BIT_NONE);
02687
02688 switch (_settings_game.pf.pathfinder_for_trains) {
02689 case VPF_NPF: return NPFTrainCheckReverse(v);
02690 case VPF_YAPF: return YapfTrainCheckReverse(v);
02691
02692 default: NOT_REACHED();
02693 }
02694 }
02695
02701 TileIndex Train::GetOrderStationLocation(StationID station)
02702 {
02703 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02704
02705 const Station *st = Station::Get(station);
02706 if (!(st->facilities & FACIL_TRAIN)) {
02707
02708 this->IncrementRealOrderIndex();
02709 return 0;
02710 }
02711
02712 return st->xy;
02713 }
02714
02716 void Train::MarkDirty()
02717 {
02718 Train *v = this;
02719 do {
02720 v->UpdateViewport(false, false);
02721 } while ((v = v->Next()) != NULL);
02722
02723
02724 this->CargoChanged();
02725 this->UpdateAcceleration();
02726 }
02727
02735 int Train::UpdateSpeed()
02736 {
02737 switch (_settings_game.vehicle.train_acceleration_model) {
02738 default: NOT_REACHED();
02739 case AM_ORIGINAL:
02740 return this->DoUpdateSpeed(this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2), 0, min(this->gcache.cached_max_track_speed, this->current_order.max_speed));
02741
02742 case AM_REALISTIC:
02743 return this->DoUpdateSpeed(this->GetAcceleration(), this->GetAccelerationStatus() == AS_BRAKE ? 0 : 2, this->GetCurrentMaxSpeed());
02744 }
02745 }
02746
02752 static void TrainEnterStation(Train *v, StationID station)
02753 {
02754 v->last_station_visited = station;
02755
02756
02757 Station *st = Station::Get(station);
02758 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02759 st->had_vehicle_of_type |= HVOT_TRAIN;
02760 SetDParam(0, st->index);
02761 AddVehicleNewsItem(
02762 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02763 v->owner == _local_company ? NT_ARRIVAL_COMPANY : NT_ARRIVAL_OTHER,
02764 v->index,
02765 st->index
02766 );
02767 AI::NewEvent(v->owner, new ScriptEventStationFirstVehicle(st->index, v->index));
02768 Game::NewEvent(new ScriptEventStationFirstVehicle(st->index, v->index));
02769 }
02770
02771 v->force_proceed = TFP_NONE;
02772 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02773
02774 v->BeginLoading();
02775
02776 TriggerStationAnimation(st, v->tile, SAT_TRAIN_ARRIVES);
02777 }
02778
02779
02780 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
02781 {
02782 return IsTileOwner(tile, v->owner) &&
02783 (!v->IsFrontEngine() || HasBit(v->compatible_railtypes, GetRailType(tile)));
02784 }
02785
02787 struct AccelerationSlowdownParams {
02788 byte small_turn;
02789 byte large_turn;
02790 byte z_up;
02791 byte z_down;
02792 };
02793
02795 static const AccelerationSlowdownParams _accel_slowdown[] = {
02796
02797 {256 / 4, 256 / 2, 256 / 4, 2},
02798 {256 / 4, 256 / 2, 256 / 4, 2},
02799 {0, 256 / 2, 256 / 4, 2},
02800 };
02801
02807 static inline void AffectSpeedByZChange(Train *v, int old_z)
02808 {
02809 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
02810
02811 const AccelerationSlowdownParams *asp = &_accel_slowdown[GetRailTypeInfo(v->railtype)->acceleration_type];
02812
02813 if (old_z < v->z_pos) {
02814 v->cur_speed -= (v->cur_speed * asp->z_up >> 8);
02815 } else {
02816 uint16 spd = v->cur_speed + asp->z_down;
02817 if (spd <= v->gcache.cached_max_track_speed) v->cur_speed = spd;
02818 }
02819 }
02820
02821 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
02822 {
02823 if (IsTileType(tile, MP_RAILWAY) &&
02824 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
02825 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
02826 Trackdir trackdir = FindFirstTrackdir(tracks);
02827 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
02828
02829 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
02830 }
02831 }
02832 return false;
02833 }
02834
02836 void Train::ReserveTrackUnderConsist() const
02837 {
02838 for (const Train *u = this; u != NULL; u = u->Next()) {
02839 switch (u->track) {
02840 case TRACK_BIT_WORMHOLE:
02841 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
02842 break;
02843 case TRACK_BIT_DEPOT:
02844 break;
02845 default:
02846 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
02847 break;
02848 }
02849 }
02850 }
02851
02858 uint Train::Crash(bool flooded)
02859 {
02860 uint pass = 0;
02861 if (this->IsFrontEngine()) {
02862 pass += 2;
02863
02864
02865
02866 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
02867 for (const Train *v = this; v != NULL; v = v->Next()) {
02868 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
02869 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
02870
02871
02872 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
02873 }
02874 }
02875
02876
02877
02878 TileIndex crossing = TrainApproachingCrossingTile(this);
02879 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
02880
02881
02882 HideFillingPercent(&this->fill_percent_te_id);
02883 }
02884
02885 pass += this->GroundVehicleBase::Crash(flooded);
02886
02887 this->crash_anim_pos = flooded ? 4000 : 1;
02888 return pass;
02889 }
02890
02897 static uint TrainCrashed(Train *v)
02898 {
02899 uint num = 0;
02900
02901
02902 if (!(v->vehstatus & VS_CRASHED)) {
02903 num = v->Crash();
02904 AI::NewEvent(v->owner, new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02905 Game::NewEvent(new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02906 }
02907
02908
02909
02910 v->ReserveTrackUnderConsist();
02911
02912 return num;
02913 }
02914
02916 struct TrainCollideChecker {
02917 Train *v;
02918 uint num;
02919 };
02920
02927 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
02928 {
02929 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
02930
02931
02932 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
02933
02934
02935 if (v->owner != tcc->v->owner) return NULL;
02936
02937
02938 Train *coll = Train::From(v)->First();
02939
02940
02941 if (coll == tcc->v) return NULL;
02942
02943 int x_diff = v->x_pos - tcc->v->x_pos;
02944 int y_diff = v->y_pos - tcc->v->y_pos;
02945
02946
02947
02948
02949
02950 uint hash = (y_diff + 7) | (x_diff + 7);
02951 if (hash & ~15) return NULL;
02952
02953
02954 int min_diff = (Train::From(v)->gcache.cached_veh_length + 1) / 2 + (tcc->v->gcache.cached_veh_length + 1) / 2 - 1;
02955 if (x_diff * x_diff + y_diff * y_diff > min_diff * min_diff) return NULL;
02956
02957
02958 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
02959
02960
02961 tcc->num += TrainCrashed(tcc->v);
02962 tcc->num += TrainCrashed(coll);
02963
02964 return NULL;
02965 }
02966
02974 static bool CheckTrainCollision(Train *v)
02975 {
02976
02977 if (v->track == TRACK_BIT_DEPOT) return false;
02978
02979 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
02980
02981 TrainCollideChecker tcc;
02982 tcc.v = v;
02983 tcc.num = 0;
02984
02985
02986 if (v->track == TRACK_BIT_WORMHOLE) {
02987 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
02988 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
02989 } else {
02990 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
02991 }
02992
02993
02994 if (tcc.num == 0) return false;
02995
02996 SetDParam(0, tcc.num);
02997 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH, NT_ACCIDENT, v->index);
02998
02999 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03000 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03001 return true;
03002 }
03003
03004 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03005 {
03006 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03007
03008 Train *t = Train::From(v);
03009 DiagDirection exitdir = *(DiagDirection *)data;
03010
03011
03012 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03013
03014 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03015
03016 return t;
03017 }
03018
03026 bool TrainController(Train *v, Vehicle *nomove, bool reverse)
03027 {
03028 Train *first = v->First();
03029 Train *prev;
03030 bool direction_changed = false;
03031
03032
03033 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03034 DiagDirection enterdir = DIAGDIR_BEGIN;
03035 bool update_signals_crossing = false;
03036
03037 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03038 if (v->track != TRACK_BIT_WORMHOLE) {
03039
03040 if (gp.old_tile == gp.new_tile) {
03041
03042 if (v->track == TRACK_BIT_DEPOT) {
03043
03044 gp.x = v->x_pos;
03045 gp.y = v->y_pos;
03046 } else {
03047
03048
03049
03050 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v, reverse)) return false;
03051
03052 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03053 if (HasBit(r, VETS_CANNOT_ENTER)) {
03054 goto invalid_rail;
03055 }
03056 if (HasBit(r, VETS_ENTERED_STATION)) {
03057
03058 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03059 }
03060 }
03061 } else {
03062
03063
03064
03065 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03066 assert(IsValidDiagDirection(enterdir));
03067
03068
03069
03070 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03071 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03072
03073 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03074 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03075
03076 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03077 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03078
03079
03080 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03081 }
03082
03083 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03084
03085
03086
03087 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03088
03089 TrackBits chosen_track;
03090 if (prev == NULL) {
03091
03092
03093 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03094 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03095
03096 if (v->force_proceed != TFP_NONE && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03097
03098
03099
03100
03101 Trackdir dir = FindFirstTrackdir(trackdirbits);
03102 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03103 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03104
03105
03106 v->force_proceed = (v->force_proceed == TFP_SIGNAL) ? TFP_STUCK : TFP_NONE;
03107 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03108 }
03109 }
03110
03111
03112 if ((red_signals & chosen_track) && v->force_proceed == TFP_NONE) {
03113
03114 Trackdir i = FindFirstTrackdir(trackdirbits);
03115
03116
03117 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return false;
03118
03119 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03120 v->cur_speed = 0;
03121 v->subspeed = 0;
03122 v->progress = 255 - 100;
03123 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return false;
03124 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03125 v->cur_speed = 0;
03126 v->subspeed = 0;
03127 v->progress = 255 - 10;
03128 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03129 DiagDirection exitdir = TrackdirToExitdir(i);
03130 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03131
03132 exitdir = ReverseDiagDir(exitdir);
03133
03134
03135 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return false;
03136 }
03137 }
03138
03139
03140
03141
03142
03143 if (!_settings_game.pf.reverse_at_signals && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03144 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03145 v->wait_counter = 0;
03146 return false;
03147 }
03148 goto reverse_train_direction;
03149 } else {
03150 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03151 }
03152 } else {
03153
03154 if (prev->tile == gp.new_tile) {
03155
03156 if (prev->track == TRACK_BIT_WORMHOLE) {
03157
03158
03159 assert(IsTunnel(prev->tile));
03160 chosen_track = bits;
03161 } else {
03162 chosen_track = prev->track;
03163 }
03164 } else {
03165
03166
03167
03168
03169
03170
03171
03172 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03173 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03174 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03175 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03176 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03177 };
03178 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03179 assert(IsValidDiagDirection(exitdir));
03180 chosen_track = _connecting_track[enterdir][exitdir];
03181 }
03182 chosen_track &= bits;
03183 }
03184
03185
03186 assert(
03187 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03188 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03189 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03190
03191
03192 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03193 gp.x = (gp.x & ~0xF) | b[0];
03194 gp.y = (gp.y & ~0xF) | b[1];
03195 Direction chosen_dir = (Direction)b[2];
03196
03197
03198 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03199 if (HasBit(r, VETS_CANNOT_ENTER)) {
03200 goto invalid_rail;
03201 }
03202
03203 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03204 Track track = FindFirstTrack(chosen_track);
03205 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03206 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03207 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03208 MarkTileDirtyByTile(gp.new_tile);
03209 }
03210
03211
03212 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03213
03214 v->tile = gp.new_tile;
03215
03216 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03217 v->First()->ConsistChanged(true);
03218 }
03219
03220 v->track = chosen_track;
03221 assert(v->track);
03222 }
03223
03224
03225
03226 update_signals_crossing = true;
03227
03228 if (chosen_dir != v->direction) {
03229 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03230 const AccelerationSlowdownParams *asp = &_accel_slowdown[GetRailTypeInfo(v->railtype)->acceleration_type];
03231 DirDiff diff = DirDifference(v->direction, chosen_dir);
03232 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? asp->small_turn : asp->large_turn) * v->cur_speed >> 8;
03233 }
03234 direction_changed = true;
03235 v->direction = chosen_dir;
03236 }
03237
03238 if (v->IsFrontEngine()) {
03239 v->wait_counter = 0;
03240
03241
03242 TileIndex crossing = TrainApproachingCrossingTile(v);
03243 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03244
03245
03246 CheckNextTrainTile(v);
03247 }
03248
03249 if (HasBit(r, VETS_ENTERED_STATION)) {
03250
03251 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03252 }
03253 }
03254 } else {
03255
03256
03257
03258 if (!(v->vehstatus & VS_HIDDEN)) {
03259 Train *first = v->First();
03260 first->cur_speed = min(first->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03261 }
03262
03263 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03264
03265 if (v->IsFrontEngine()) {
03266 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03267 CheckNextTrainTile(v);
03268 }
03269
03270
03271 if (gp.old_tile == gp.new_tile) {
03272 gp.old_tile = GetOtherTunnelBridgeEnd(gp.old_tile);
03273 }
03274 } else {
03275 v->x_pos = gp.x;
03276 v->y_pos = gp.y;
03277 VehicleUpdatePosition(v);
03278 if ((v->vehstatus & VS_HIDDEN) == 0) VehicleUpdateViewport(v, true);
03279 continue;
03280 }
03281 }
03282
03283
03284 v->UpdateDeltaXY(v->direction);
03285
03286 v->x_pos = gp.x;
03287 v->y_pos = gp.y;
03288 VehicleUpdatePosition(v);
03289
03290
03291 int old_z = v->UpdateInclination(gp.new_tile != gp.old_tile, false);
03292
03293 if (prev == NULL) {
03294
03295 AffectSpeedByZChange(v, old_z);
03296 }
03297
03298 if (update_signals_crossing) {
03299 if (v->IsFrontEngine()) {
03300 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03301
03302
03303
03304
03305
03306
03307
03308
03309 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03310 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03311 !TryPathReserve(v)) {
03312 MarkTrainAsStuck(v);
03313 }
03314 }
03315 }
03316
03317
03318
03319 if (v->Next() == NULL) {
03320 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03321 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03322 }
03323 }
03324
03325
03326 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03327 }
03328
03329 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03330
03331 return true;
03332
03333 invalid_rail:
03334
03335 if (prev != NULL) error("Disconnecting train");
03336
03337 reverse_train_direction:
03338 if (reverse) {
03339 v->wait_counter = 0;
03340 v->cur_speed = 0;
03341 v->subspeed = 0;
03342 ReverseTrainDirection(v);
03343 }
03344
03345 return false;
03346 }
03347
03354 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03355 {
03356 TrackBits *trackbits = (TrackBits *)data;
03357
03358 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03359 TrackBits train_tbits = Train::From(v)->track;
03360 if (train_tbits == TRACK_BIT_WORMHOLE) {
03361
03362 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03363 } else if (train_tbits != TRACK_BIT_DEPOT) {
03364 *trackbits |= train_tbits;
03365 }
03366 }
03367
03368 return NULL;
03369 }
03370
03378 static void DeleteLastWagon(Train *v)
03379 {
03380 Train *first = v->First();
03381
03382
03383
03384
03385 Train *u = v;
03386 for (; v->Next() != NULL; v = v->Next()) u = v;
03387 u->SetNext(NULL);
03388
03389 if (first != v) {
03390
03391 first->ConsistChanged(false);
03392
03393
03394 if (first->track == TRACK_BIT_DEPOT) {
03395 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03396 }
03397 }
03398
03399
03400 TrackBits trackbits = v->track;
03401 TileIndex tile = v->tile;
03402 Owner owner = v->owner;
03403
03404 delete v;
03405 v = NULL;
03406
03407 if (trackbits == TRACK_BIT_WORMHOLE) {
03408
03409 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03410 }
03411
03412 Track track = TrackBitsToTrack(trackbits);
03413 if (HasReservedTracks(tile, trackbits)) {
03414 UnreserveRailTrack(tile, track);
03415
03416
03417 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03418 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03419
03420
03421 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03422 Track t;
03423 FOR_EACH_SET_TRACK(t, remaining_trackbits) TryReserveRailTrack(tile, t);
03424 }
03425
03426
03427 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03428
03429
03430 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03431 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03432 } else {
03433 SetSignalsOnBothDir(tile, track, owner);
03434 }
03435 }
03436
03441 static void ChangeTrainDirRandomly(Train *v)
03442 {
03443 static const DirDiff delta[] = {
03444 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03445 };
03446
03447 do {
03448
03449 if (!(v->vehstatus & VS_HIDDEN)) {
03450 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03451 v->UpdateDeltaXY(v->direction);
03452 v->cur_image = v->GetImage(v->direction, EIT_ON_MAP);
03453
03454
03455
03456 if (v->track != TRACK_BIT_WORMHOLE) {
03457 VehicleUpdatePosition(v);
03458 v->UpdateInclination(false, false);
03459 }
03460 }
03461 } while ((v = v->Next()) != NULL);
03462 }
03463
03469 static bool HandleCrashedTrain(Train *v)
03470 {
03471 int state = ++v->crash_anim_pos;
03472
03473 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03474 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03475 }
03476
03477 uint32 r;
03478 if (state <= 200 && Chance16R(1, 7, r)) {
03479 int index = (r * 10 >> 16);
03480
03481 Vehicle *u = v;
03482 do {
03483 if (--index < 0) {
03484 r = Random();
03485
03486 CreateEffectVehicleRel(u,
03487 GB(r, 8, 3) + 2,
03488 GB(r, 16, 3) + 2,
03489 GB(r, 0, 3) + 5,
03490 EV_EXPLOSION_SMALL);
03491 break;
03492 }
03493 } while ((u = u->Next()) != NULL);
03494 }
03495
03496 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03497
03498 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03499 bool ret = v->Next() != NULL;
03500 DeleteLastWagon(v);
03501 return ret;
03502 }
03503
03504 return true;
03505 }
03506
03508 static const uint16 _breakdown_speeds[16] = {
03509 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03510 };
03511
03512
03521 static bool TrainApproachingLineEnd(Train *v, bool signal, bool reverse)
03522 {
03523
03524 uint x = v->x_pos & 0xF;
03525 uint y = v->y_pos & 0xF;
03526
03527
03528
03529 switch (v->direction) {
03530 case DIR_N : x = ~x + ~y + 25; break;
03531 case DIR_NW: x = y;
03532 case DIR_NE: x = ~x + 16; break;
03533 case DIR_E : x = ~x + y + 9; break;
03534 case DIR_SE: x = y; break;
03535 case DIR_S : x = x + y - 7; break;
03536 case DIR_W : x = ~y + x + 9; break;
03537 default: break;
03538 }
03539
03540
03541
03542
03543
03544
03545 if (!signal && x + (v->gcache.cached_veh_length + 1) / 2 * (IsDiagonalDirection(v->direction) ? 1 : 2) >= TILE_SIZE) {
03546
03547 v->cur_speed = 0;
03548 if (reverse) ReverseTrainDirection(v);
03549 return false;
03550 }
03551
03552
03553 v->vehstatus |= VS_TRAIN_SLOWING;
03554 uint16 break_speed = _breakdown_speeds[x & 0xF];
03555 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03556
03557 return true;
03558 }
03559
03560
03566 static bool TrainCanLeaveTile(const Train *v)
03567 {
03568
03569 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03570
03571 TileIndex tile = v->tile;
03572
03573
03574 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03575 DiagDirection dir = GetTunnelBridgeDirection(tile);
03576 if (DiagDirToDir(dir) == v->direction) return false;
03577 }
03578
03579
03580 if (IsRailDepotTile(tile)) {
03581 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03582 if (DiagDirToDir(dir) == v->direction) return false;
03583 }
03584
03585 return true;
03586 }
03587
03588
03596 static TileIndex TrainApproachingCrossingTile(const Train *v)
03597 {
03598 assert(v->IsFrontEngine());
03599 assert(!(v->vehstatus & VS_CRASHED));
03600
03601 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03602
03603 DiagDirection dir = TrainExitDir(v->direction, v->track);
03604 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03605
03606
03607 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03608 !CheckCompatibleRail(v, tile)) {
03609 return INVALID_TILE;
03610 }
03611
03612 return tile;
03613 }
03614
03615
03623 static bool TrainCheckIfLineEnds(Train *v, bool reverse)
03624 {
03625
03626
03627 int t = v->breakdown_ctr;
03628 if (t > 1) {
03629 v->vehstatus |= VS_TRAIN_SLOWING;
03630
03631 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03632 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03633 } else {
03634 v->vehstatus &= ~VS_TRAIN_SLOWING;
03635 }
03636
03637 if (!TrainCanLeaveTile(v)) return true;
03638
03639
03640 DiagDirection dir = TrainExitDir(v->direction, v->track);
03641
03642 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03643
03644
03645 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03646 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03647
03648 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03649 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03650
03651
03652
03653
03654 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03655 if (_settings_game.pf.forbid_90_deg) {
03656 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03657 }
03658
03659
03660 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03661 return TrainApproachingLineEnd(v, false, reverse);
03662 }
03663
03664
03665 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true, reverse);
03666
03667
03668 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03669
03670 return true;
03671 }
03672
03673
03674 static bool TrainLocoHandler(Train *v, bool mode)
03675 {
03676
03677 if (v->vehstatus & VS_CRASHED) {
03678 return mode ? true : HandleCrashedTrain(v);
03679 }
03680
03681 if (v->force_proceed != TFP_NONE) {
03682 ClrBit(v->flags, VRF_TRAIN_STUCK);
03683 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03684 }
03685
03686
03687 if (v->HandleBreakdown()) return true;
03688
03689 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03690 ReverseTrainDirection(v);
03691 }
03692
03693
03694 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03695
03696 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03697 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03698 v->wait_counter = 0;
03699 v->cur_speed = 0;
03700 v->subspeed = 0;
03701 ClrBit(v->flags, VRF_LEAVING_STATION);
03702 ReverseTrainDirection(v);
03703 return true;
03704 } else if (HasBit(v->flags, VRF_LEAVING_STATION)) {
03705
03706
03707
03708 DiagDirection dir = TrainExitDir(v->direction, v->track);
03709 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
03710
03711 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
03712 TryPathReserve(v, true, true);
03713 }
03714 ClrBit(v->flags, VRF_LEAVING_STATION);
03715 }
03716
03717 v->HandleLoading(mode);
03718
03719 if (v->current_order.IsType(OT_LOADING)) return true;
03720
03721 if (CheckTrainStayInDepot(v)) return true;
03722
03723 if (!mode) v->ShowVisualEffect();
03724
03725
03726 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03727 CheckNextTrainTile(v);
03728 }
03729
03730
03731 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03732 ++v->wait_counter;
03733
03734
03735 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.reverse_at_signals;
03736
03737 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == TFP_NONE) return true;
03738 if (!TryPathReserve(v)) {
03739
03740 if (turn_around) ReverseTrainDirection(v);
03741
03742 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03743
03744 if (_settings_client.gui.lost_vehicle_warn && v->owner == _local_company) {
03745 SetDParam(0, v->index);
03746 AddVehicleAdviceNewsItem(STR_NEWS_TRAIN_IS_STUCK, v->index);
03747 }
03748 v->wait_counter = 0;
03749 }
03750
03751 if (v->force_proceed == TFP_NONE) return true;
03752 ClrBit(v->flags, VRF_TRAIN_STUCK);
03753 v->wait_counter = 0;
03754 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03755 }
03756 }
03757
03758 if (v->current_order.IsType(OT_LEAVESTATION)) {
03759 v->current_order.Free();
03760 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03761 return true;
03762 }
03763
03764 int j = v->UpdateSpeed();
03765
03766
03767 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
03768
03769 v->force_proceed = TFP_NONE;
03770 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03771 }
03772
03773 int adv_spd = v->GetAdvanceDistance();
03774 if (j < adv_spd) {
03775
03776 if (v->cur_speed == 0) v->SetLastSpeed();
03777 } else {
03778 TrainCheckIfLineEnds(v);
03779
03780 for (;;) {
03781 j -= adv_spd;
03782 TrainController(v, NULL);
03783
03784 if (CheckTrainCollision(v)) break;
03785
03786 adv_spd = v->GetAdvanceDistance();
03787
03788
03789 if (j < adv_spd || v->cur_speed == 0) break;
03790
03791 OrderType order_type = v->current_order.GetType();
03792
03793 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
03794 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
03795 IsTileType(v->tile, MP_STATION) &&
03796 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
03797 ProcessOrders(v);
03798 }
03799 }
03800 v->SetLastSpeed();
03801 }
03802
03803 for (Train *u = v; u != NULL; u = u->Next()) {
03804 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
03805
03806 u->UpdateViewport(false, false);
03807 }
03808
03809 if (v->progress == 0) v->progress = j;
03810
03811 return true;
03812 }
03813
03818 Money Train::GetRunningCost() const
03819 {
03820 Money cost = 0;
03821 const Train *v = this;
03822
03823 do {
03824 const Engine *e = v->GetEngine();
03825 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
03826
03827 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
03828 if (cost_factor == 0) continue;
03829
03830
03831 if (v->IsMultiheaded()) cost_factor /= 2;
03832
03833 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->GetGRF());
03834 } while ((v = v->GetNextVehicle()) != NULL);
03835
03836 return cost;
03837 }
03838
03843 bool Train::Tick()
03844 {
03845 this->tick_counter++;
03846
03847 if (this->IsFrontEngine()) {
03848 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
03849
03850 this->current_order_time++;
03851
03852 if (!TrainLocoHandler(this, false)) return false;
03853
03854 return TrainLocoHandler(this, true);
03855 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
03856
03857 if (++this->crash_anim_pos >= 4400) {
03858 delete this;
03859 return false;
03860 }
03861 }
03862
03863 return true;
03864 }
03865
03870 static void CheckIfTrainNeedsService(Train *v)
03871 {
03872 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
03873 if (v->IsChainInDepot()) {
03874 VehicleServiceInDepot(v);
03875 return;
03876 }
03877
03878 uint max_penalty;
03879 switch (_settings_game.pf.pathfinder_for_trains) {
03880 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
03881 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
03882 default: NOT_REACHED();
03883 }
03884
03885 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
03886
03887 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
03888 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
03889
03890
03891
03892 v->current_order.MakeDummy();
03893 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03894 }
03895 return;
03896 }
03897
03898 DepotID depot = GetDepotIndex(tfdd.tile);
03899
03900 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
03901 v->current_order.GetDestination() != depot &&
03902 !Chance16(3, 16)) {
03903 return;
03904 }
03905
03906 SetBit(v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
03907 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
03908 v->dest_tile = tfdd.tile;
03909 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03910 }
03911
03913 void Train::OnNewDay()
03914 {
03915 AgeVehicle(this);
03916
03917 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
03918
03919 if (this->IsFrontEngine()) {
03920 CheckVehicleBreakdown(this);
03921
03922 CheckIfTrainNeedsService(this);
03923
03924 CheckOrders(this);
03925
03926
03927 if (this->current_order.IsType(OT_GOTO_STATION)) {
03928 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
03929 if (tile != INVALID_TILE) this->dest_tile = tile;
03930 }
03931
03932 if (this->running_ticks != 0) {
03933
03934 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
03935
03936 this->profit_this_year -= cost.GetCost();
03937 this->running_ticks = 0;
03938
03939 SubtractMoneyFromCompanyFract(this->owner, cost);
03940
03941 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
03942 SetWindowClassesDirty(WC_TRAINS_LIST);
03943 }
03944 }
03945 }
03946
03951 Trackdir Train::GetVehicleTrackdir() const
03952 {
03953 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
03954
03955 if (this->track == TRACK_BIT_DEPOT) {
03956
03957 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
03958 }
03959
03960 if (this->track == TRACK_BIT_WORMHOLE) {
03961
03962 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
03963 }
03964
03965 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
03966 }