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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 int max_speed = this->tcache.cached_max_curve_speed;
00373 assert(max_speed == this->GetCurveSpeedLimit());
00374
00375 if (IsRailStationTile(this->tile)) {
00376 StationID sid = GetStationIndex(this->tile);
00377 if (this->current_order.ShouldStopAtStation(this, sid)) {
00378 int station_ahead;
00379 int station_length;
00380 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00381
00382
00383
00384 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00385
00386 if (distance_to_go > 0) {
00387 int st_max_speed = 120;
00388
00389 int delta_v = this->cur_speed / (distance_to_go + 1);
00390 if (max_speed > (this->cur_speed - delta_v)) {
00391 st_max_speed = this->cur_speed - (delta_v / 10);
00392 }
00393
00394 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00395 max_speed = min(max_speed, st_max_speed);
00396 }
00397 }
00398 }
00399
00400 for (const Train *u = this; u != NULL; u = u->Next()) {
00401 if (u->track == TRACK_BIT_DEPOT) {
00402 max_speed = min(max_speed, 61);
00403 break;
00404 }
00405 }
00406
00407 max_speed = min(max_speed, this->current_order.max_speed);
00408 return min(max_speed, this->gcache.cached_max_track_speed);
00409 }
00410
00412 void Train::UpdateAcceleration()
00413 {
00414 assert(this->IsFrontEngine());
00415
00416 uint power = this->gcache.cached_power;
00417 uint weight = this->gcache.cached_weight;
00418 assert(weight != 0);
00419 this->acceleration = Clamp(power / weight * 4, 1, 255);
00420 }
00421
00427 int Train::GetDisplayImageWidth(Point *offset) const
00428 {
00429 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00430 int vehicle_pitch = 0;
00431
00432 const Engine *e = this->GetEngine();
00433 if (e->GetGRF() != NULL && is_custom_sprite(e->u.rail.image_index)) {
00434 reference_width = e->GetGRF()->traininfo_vehicle_width;
00435 vehicle_pitch = e->GetGRF()->traininfo_vehicle_pitch;
00436 }
00437
00438 if (offset != NULL) {
00439 offset->x = reference_width / 2;
00440 offset->y = vehicle_pitch;
00441 }
00442 return this->gcache.cached_veh_length * reference_width / VEHICLE_LENGTH;
00443 }
00444
00445 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00446 {
00447 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00448 }
00449
00456 SpriteID Train::GetImage(Direction direction, EngineImageType image_type) const
00457 {
00458 uint8 spritenum = this->spritenum;
00459 SpriteID sprite;
00460
00461 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00462
00463 if (is_custom_sprite(spritenum)) {
00464 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)), image_type);
00465 if (sprite != 0) return sprite;
00466
00467 spritenum = this->GetEngine()->original_image_index;
00468 }
00469
00470 sprite = GetDefaultTrainSprite(spritenum, direction);
00471
00472 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00473
00474 return sprite;
00475 }
00476
00477 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y, EngineImageType image_type)
00478 {
00479 const Engine *e = Engine::Get(engine);
00480 Direction dir = rear_head ? DIR_E : DIR_W;
00481 uint8 spritenum = e->u.rail.image_index;
00482
00483 if (is_custom_sprite(spritenum)) {
00484 SpriteID sprite = GetCustomVehicleIcon(engine, dir, image_type);
00485 if (sprite != 0) {
00486 if (e->GetGRF() != NULL) {
00487 y += e->GetGRF()->traininfo_vehicle_pitch;
00488 }
00489 return sprite;
00490 }
00491
00492 spritenum = Engine::Get(engine)->original_image_index;
00493 }
00494
00495 if (rear_head) spritenum++;
00496
00497 return GetDefaultTrainSprite(spritenum, DIR_W);
00498 }
00499
00500 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal, EngineImageType image_type)
00501 {
00502 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00503 int yf = y;
00504 int yr = y;
00505
00506 SpriteID spritef = GetRailIcon(engine, false, yf, image_type);
00507 SpriteID spriter = GetRailIcon(engine, true, yr, image_type);
00508 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00509 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00510
00511 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);
00512
00513 DrawSprite(spritef, pal, preferred_x - 14, yf);
00514 DrawSprite(spriter, pal, preferred_x + 15, yr);
00515 } else {
00516 SpriteID sprite = GetRailIcon(engine, false, y, image_type);
00517 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00518 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));
00519 DrawSprite(sprite, pal, preferred_x, y);
00520 }
00521 }
00522
00531 static CommandCost CmdBuildRailWagon(TileIndex tile, DoCommandFlag flags, const Engine *e, Vehicle **ret)
00532 {
00533 const RailVehicleInfo *rvi = &e->u.rail;
00534
00535
00536 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00537
00538 if (flags & DC_EXEC) {
00539 Train *v = new Train();
00540 *ret = v;
00541 v->spritenum = rvi->image_index;
00542
00543 v->engine_type = e->index;
00544 v->gcache.first_engine = INVALID_ENGINE;
00545
00546 DiagDirection dir = GetRailDepotDirection(tile);
00547
00548 v->direction = DiagDirToDir(dir);
00549 v->tile = tile;
00550
00551 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00552 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00553
00554 v->x_pos = x;
00555 v->y_pos = y;
00556 v->z_pos = GetSlopePixelZ(x, y);
00557 v->owner = _current_company;
00558 v->track = TRACK_BIT_DEPOT;
00559 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00560
00561 v->SetWagon();
00562
00563 v->SetFreeWagon();
00564 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00565
00566 v->cargo_type = e->GetDefaultCargoType();
00567 v->cargo_cap = rvi->capacity;
00568
00569 v->railtype = rvi->railtype;
00570
00571 v->build_year = _cur_year;
00572 v->cur_image = SPR_IMG_QUERY;
00573 v->random_bits = VehicleRandomBits();
00574
00575 v->group_id = DEFAULT_GROUP;
00576
00577 AddArticulatedParts(v);
00578
00579 _new_vehicle_id = v->index;
00580
00581 VehicleUpdatePosition(v);
00582 v->First()->ConsistChanged(false);
00583 UpdateTrainGroupID(v->First());
00584
00585 CheckConsistencyOfArticulatedVehicle(v);
00586
00587
00588 Train *w;
00589 FOR_ALL_TRAINS(w) {
00590 if (w->tile == tile &&
00591 w->IsFreeWagon() &&
00592 w->engine_type == e->index &&
00593 w->First() != v &&
00594 !(w->vehstatus & VS_CRASHED)) {
00595 DoCommand(0, v->index | 1 << 20, w->Last()->index, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00596 break;
00597 }
00598 }
00599 }
00600
00601 return CommandCost();
00602 }
00603
00605 static void NormalizeTrainVehInDepot(const Train *u)
00606 {
00607 const Train *v;
00608 FOR_ALL_TRAINS(v) {
00609 if (v->IsFreeWagon() && v->tile == u->tile &&
00610 v->track == TRACK_BIT_DEPOT) {
00611 if (DoCommand(0, v->index | 1 << 20, u->index, DC_EXEC,
00612 CMD_MOVE_RAIL_VEHICLE).Failed())
00613 break;
00614 }
00615 }
00616 }
00617
00618 static void AddRearEngineToMultiheadedTrain(Train *v)
00619 {
00620 Train *u = new Train();
00621 v->value >>= 1;
00622 u->value = v->value;
00623 u->direction = v->direction;
00624 u->owner = v->owner;
00625 u->tile = v->tile;
00626 u->x_pos = v->x_pos;
00627 u->y_pos = v->y_pos;
00628 u->z_pos = v->z_pos;
00629 u->track = TRACK_BIT_DEPOT;
00630 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00631 u->spritenum = v->spritenum + 1;
00632 u->cargo_type = v->cargo_type;
00633 u->cargo_subtype = v->cargo_subtype;
00634 u->cargo_cap = v->cargo_cap;
00635 u->railtype = v->railtype;
00636 u->engine_type = v->engine_type;
00637 u->build_year = v->build_year;
00638 u->cur_image = SPR_IMG_QUERY;
00639 u->random_bits = VehicleRandomBits();
00640 v->SetMultiheaded();
00641 u->SetMultiheaded();
00642 v->SetNext(u);
00643 VehicleUpdatePosition(u);
00644
00645
00646 v->other_multiheaded_part = u;
00647 u->other_multiheaded_part = v;
00648 }
00649
00659 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, const Engine *e, uint16 data, Vehicle **ret)
00660 {
00661 const RailVehicleInfo *rvi = &e->u.rail;
00662
00663 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(tile, flags, e, ret);
00664
00665
00666
00667 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00668
00669 if (flags & DC_EXEC) {
00670 DiagDirection dir = GetRailDepotDirection(tile);
00671 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00672 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00673
00674 Train *v = new Train();
00675 *ret = v;
00676 v->direction = DiagDirToDir(dir);
00677 v->tile = tile;
00678 v->owner = _current_company;
00679 v->x_pos = x;
00680 v->y_pos = y;
00681 v->z_pos = GetSlopePixelZ(x, y);
00682 v->track = TRACK_BIT_DEPOT;
00683 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00684 v->spritenum = rvi->image_index;
00685 v->cargo_type = e->GetDefaultCargoType();
00686 v->cargo_cap = rvi->capacity;
00687 v->last_station_visited = INVALID_STATION;
00688 v->last_loading_station = INVALID_STATION;
00689
00690 v->engine_type = e->index;
00691 v->gcache.first_engine = INVALID_ENGINE;
00692
00693 v->reliability = e->reliability;
00694 v->reliability_spd_dec = e->reliability_spd_dec;
00695 v->max_age = e->GetLifeLengthInDays();
00696
00697 v->railtype = rvi->railtype;
00698 _new_vehicle_id = v->index;
00699
00700 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00701 v->date_of_last_service = _date;
00702 v->build_year = _cur_year;
00703 v->cur_image = SPR_IMG_QUERY;
00704 v->random_bits = VehicleRandomBits();
00705
00706 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00707
00708 v->group_id = DEFAULT_GROUP;
00709
00710 v->SetFrontEngine();
00711 v->SetEngine();
00712
00713 VehicleUpdatePosition(v);
00714
00715 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00716 AddRearEngineToMultiheadedTrain(v);
00717 } else {
00718 AddArticulatedParts(v);
00719 }
00720
00721 v->ConsistChanged(false);
00722 UpdateTrainGroupID(v);
00723
00724 if (!HasBit(data, 0) && !(flags & DC_AUTOREPLACE)) {
00725 NormalizeTrainVehInDepot(v);
00726 }
00727
00728 CheckConsistencyOfArticulatedVehicle(v);
00729 }
00730
00731 return CommandCost();
00732 }
00733
00738 bool Train::IsInDepot() const
00739 {
00740
00741 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00742
00743
00744 for (const Train *v = this; v != NULL; v = v->Next()) {
00745 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00746 }
00747
00748 return true;
00749 }
00750
00755 bool Train::IsStoppedInDepot() const
00756 {
00757
00758 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00759 return this->IsInDepot();
00760 }
00761
00762 static Train *FindGoodVehiclePos(const Train *src)
00763 {
00764 EngineID eng = src->engine_type;
00765 TileIndex tile = src->tile;
00766
00767 Train *dst;
00768 FOR_ALL_TRAINS(dst) {
00769 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00770
00771 Train *t = dst;
00772 while (t->engine_type == eng) {
00773 t = t->Next();
00774 if (t == NULL) return dst;
00775 }
00776 }
00777 }
00778
00779 return NULL;
00780 }
00781
00783 typedef SmallVector<Train *, 16> TrainList;
00784
00790 static void MakeTrainBackup(TrainList &list, Train *t)
00791 {
00792 for (; t != NULL; t = t->Next()) *list.Append() = t;
00793 }
00794
00799 static void RestoreTrainBackup(TrainList &list)
00800 {
00801
00802 if (list.Length() == 0) return;
00803
00804 Train *prev = NULL;
00805
00806 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00807 Train *t = *iter;
00808 if (prev != NULL) {
00809 prev->SetNext(t);
00810 } else if (t->Previous() != NULL) {
00811
00812 t->Previous()->SetNext(NULL);
00813 }
00814 prev = t;
00815 }
00816 }
00817
00823 static void RemoveFromConsist(Train *part, bool chain = false)
00824 {
00825 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
00826
00827
00828
00829 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
00830
00831
00832 tail->SetNext(NULL);
00833 }
00834
00840 static void InsertInConsist(Train *dst, Train *chain)
00841 {
00842
00843 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
00844
00845 chain->Last()->SetNext(dst->Next());
00846 dst->SetNext(chain);
00847 }
00848
00854 static void NormaliseDualHeads(Train *t)
00855 {
00856 for (; t != NULL; t = t->GetNextVehicle()) {
00857 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
00858
00859
00860 Train *u;
00861 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
00862
00863 if (u == t->other_multiheaded_part) continue;
00864
00865
00866 RemoveFromConsist(t->other_multiheaded_part);
00867
00868 InsertInConsist(u, t->other_multiheaded_part);
00869 }
00870 }
00871
00876 static void NormaliseSubtypes(Train *chain)
00877 {
00878
00879 if (chain == NULL) return;
00880
00881
00882 assert(chain->Previous() == NULL);
00883
00884
00885 if (chain->IsWagon()) {
00886 chain->SetFreeWagon();
00887 } else {
00888 assert(chain->IsEngine());
00889 chain->SetFrontEngine();
00890 }
00891
00892
00893 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
00894 t->ClearFreeWagon();
00895 t->ClearFrontEngine();
00896 }
00897 }
00898
00908 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
00909 {
00910
00911
00912
00913 if ((src != NULL && src->IsEngine() ? 1 : 0) +
00914 (dst != NULL && dst->IsEngine() ? 1 : 0) -
00915 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
00916 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
00917 return CommandCost();
00918 }
00919
00920
00921
00922 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
00923
00924 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00925 }
00926
00932 static CommandCost CheckTrainAttachment(Train *t)
00933 {
00934
00935 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
00936
00937
00938
00939 int allowed_len = _settings_game.vehicle.max_train_length * TILE_SIZE - t->gcache.cached_veh_length;
00940
00941 Train *head = t;
00942 Train *prev = t;
00943
00944
00945 t = t->Next();
00946 prev->SetNext(NULL);
00947
00948
00949 head->InvalidateNewGRFCache();
00950
00951 while (t != NULL) {
00952 allowed_len -= t->gcache.cached_veh_length;
00953
00954 Train *next = t->Next();
00955
00956
00957
00958 t->SetNext(NULL);
00959
00960
00961 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
00962
00963 EngineID first_engine = t->gcache.first_engine;
00964 t->gcache.first_engine = INVALID_ENGINE;
00965
00966
00967
00968 t->InvalidateNewGRFCache();
00969
00970 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
00971
00972
00973 t->gcache.first_engine = first_engine;
00974
00975
00976 t->InvalidateNewGRFCache();
00977 head->InvalidateNewGRFCache();
00978
00979 if (callback != CALLBACK_FAILED) {
00980
00981 StringID error = STR_NULL;
00982
00983 if (head->GetGRF()->grf_version < 8) {
00984 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00985 if (callback < 0xFD) error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
00986 if (callback >= 0x100) ErrorUnknownCallbackResult(head->GetGRFID(), CBID_TRAIN_ALLOW_WAGON_ATTACH, callback);
00987 } else {
00988 if (callback < 0x400) {
00989 error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
00990 } else {
00991 switch (callback) {
00992 case 0x400:
00993 case 0x401:
00994 break;
00995
00996 default:
00997 case 0x402:
00998 error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00999 break;
01000 }
01001 }
01002 }
01003
01004 if (error != STR_NULL) return_cmd_error(error);
01005 }
01006 }
01007
01008
01009 prev->SetNext(t);
01010 prev = t;
01011 t = next;
01012 }
01013
01014 if (allowed_len < 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01015 return CommandCost();
01016 }
01017
01028 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
01029 {
01030
01031 CommandCost ret = CheckTrainAttachment(src);
01032 if (ret.Failed()) return ret;
01033 ret = CheckTrainAttachment(dst);
01034 if (ret.Failed()) return ret;
01035
01036
01037 return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
01038 }
01039
01048 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01049 {
01050
01051 if (*src_head == *dst_head) {
01052
01053
01054 *dst_head = NULL;
01055 } else if (*dst_head == NULL) {
01056
01057
01058 *dst_head = src;
01059 }
01060
01061 if (src == *src_head) {
01062
01063
01064
01065
01066
01067
01068 *src_head = move_chain ? NULL :
01069 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01070 }
01071
01072
01073
01074
01075 RemoveFromConsist(src, move_chain);
01076 if (*dst_head != src) InsertInConsist(dst, src);
01077
01078
01079
01080 NormaliseDualHeads(*src_head);
01081 NormaliseDualHeads(*dst_head);
01082 }
01083
01089 static void NormaliseTrainHead(Train *head)
01090 {
01091
01092 if (head == NULL) return;
01093
01094
01095 head->ConsistChanged(false);
01096 UpdateTrainGroupID(head);
01097
01098
01099 if (!head->IsFrontEngine()) return;
01100
01101
01102 InvalidateWindowData(WC_VEHICLE_REFIT, head->index);
01103 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, WID_VV_REFIT);
01104
01105
01106 if (head->unitnumber != 0) return;
01107 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01108 }
01109
01122 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01123 {
01124 VehicleID s = GB(p1, 0, 20);
01125 VehicleID d = GB(p2, 0, 20);
01126 bool move_chain = HasBit(p1, 20);
01127
01128 Train *src = Train::GetIfValid(s);
01129 if (src == NULL) return CMD_ERROR;
01130
01131 CommandCost ret = CheckOwnership(src->owner);
01132 if (ret.Failed()) return ret;
01133
01134
01135 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01136
01137
01138 Train *dst;
01139 if (d == INVALID_VEHICLE) {
01140 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01141 } else {
01142 dst = Train::GetIfValid(d);
01143 if (dst == NULL) return CMD_ERROR;
01144
01145 CommandCost ret = CheckOwnership(dst->owner);
01146 if (ret.Failed()) return ret;
01147
01148
01149 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01150 }
01151
01152
01153 src = src->GetFirstEnginePart();
01154 if (dst != NULL) {
01155 dst = dst->GetFirstEnginePart();
01156 }
01157
01158
01159 if (src == dst) return CommandCost();
01160
01161
01162 Train *src_head = src->First();
01163 Train *dst_head;
01164 if (dst != NULL) {
01165 dst_head = dst->First();
01166 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01167
01168 dst = dst->GetLastEnginePart();
01169 } else {
01170 dst_head = NULL;
01171 }
01172
01173 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01174
01175
01176 if (move_chain && src_head == dst_head) return CommandCost();
01177
01178
01179 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01180
01181
01182 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01183
01184
01185 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01186
01187
01188
01189 TrainList original_src;
01190 TrainList original_dst;
01191
01192 MakeTrainBackup(original_src, src_head);
01193 MakeTrainBackup(original_dst, dst_head);
01194
01195
01196
01197
01198 Train *original_src_head = src_head;
01199 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01200
01201
01202 bool original_src_head_front_engine = original_src_head != NULL && original_src_head->IsFrontEngine();
01203 bool original_dst_head_front_engine = original_dst_head != NULL && original_dst_head->IsFrontEngine();
01204
01205
01206 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01207
01208 if ((flags & DC_AUTOREPLACE) == 0) {
01209
01210
01211
01212 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
01213 if (ret.Failed()) {
01214
01215 RestoreTrainBackup(original_src);
01216 RestoreTrainBackup(original_dst);
01217 return ret;
01218 }
01219 }
01220
01221
01222 if (flags & DC_EXEC) {
01223
01224 if (original_src_head_front_engine) GroupStatistics::CountVehicle(original_src_head, -1);
01225 if (original_dst_head_front_engine) GroupStatistics::CountVehicle(original_dst_head, -1);
01226
01227
01228 NormaliseSubtypes(src_head);
01229 NormaliseSubtypes(dst_head);
01230
01231
01232
01233
01234
01235
01236
01237
01238
01239
01240
01241
01242
01243
01244
01245
01246
01247
01248
01249
01250
01251 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01252
01253 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01254 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01255 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01256 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01257 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01258 SetWindowDirty(WC_COMPANY, _current_company);
01259
01260
01261
01262 DeleteVehicleOrders(src);
01263 RemoveVehicleFromGroup(src);
01264 src->unitnumber = 0;
01265 }
01266
01267
01268
01269 if (original_src_head != src && dst_head == src) {
01270 SetTrainGroupID(src, DEFAULT_GROUP);
01271 SetWindowDirty(WC_COMPANY, _current_company);
01272 }
01273
01274
01275 if (src_head != NULL && src_head->IsFrontEngine()) GroupStatistics::CountVehicle(src_head, 1);
01276 if (dst_head != NULL && dst_head->IsFrontEngine()) GroupStatistics::CountVehicle(dst_head, 1);
01277
01278
01279 NormaliseTrainHead(src_head);
01280 NormaliseTrainHead(dst_head);
01281
01282 if ((flags & DC_NO_CARGO_CAP_CHECK) == 0) {
01283 CheckCargoCapacity(src_head);
01284 CheckCargoCapacity(dst_head);
01285 }
01286
01287
01288 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01289 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01290 } else {
01291
01292 RestoreTrainBackup(original_src);
01293 RestoreTrainBackup(original_dst);
01294 }
01295
01296 return CommandCost();
01297 }
01298
01310 CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint32 user)
01311 {
01312
01313 Window *w = NULL;
01314
01315
01316 bool sell_chain = HasBit(data, 0);
01317
01318 Train *v = Train::From(t)->GetFirstEnginePart();
01319 Train *first = v->First();
01320
01321 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01322
01323
01324
01325 TrainList original;
01326 MakeTrainBackup(original, first);
01327
01328
01329 Train *new_head = first;
01330 Train *sell_head = NULL;
01331
01332
01333 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01334
01335
01336 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
01337 if (ret.Failed()) {
01338
01339 RestoreTrainBackup(original);
01340 return ret;
01341 }
01342
01343 CommandCost cost(EXPENSES_NEW_VEHICLES);
01344 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01345
01346 if (first->orders.list == NULL && !OrderList::CanAllocateItem()) {
01347 return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
01348 }
01349
01350
01351 if (flags & DC_EXEC) {
01352
01353 NormaliseSubtypes(new_head);
01354
01355 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01356
01357
01358 new_head->orders.list = first->orders.list;
01359 new_head->AddToShared(first);
01360 DeleteVehicleOrders(first);
01361
01362
01363 new_head->CopyVehicleConfigAndStatistics(first);
01364 GroupStatistics::CountVehicle(new_head, 1);
01365
01366
01367 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01368 } else if (v->IsPrimaryVehicle() && data & (MAKE_ORDER_BACKUP_FLAG >> 20)) {
01369 OrderBackup::Backup(v, user);
01370 }
01371
01372
01373 NormaliseTrainHead(new_head);
01374
01375
01376 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01377 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01378
01379
01380 delete sell_head;
01381 } else {
01382
01383 RestoreTrainBackup(original);
01384 }
01385
01386 return cost;
01387 }
01388
01389 void Train::UpdateDeltaXY(Direction direction)
01390 {
01391
01392 this->x_offs = -1;
01393 this->y_offs = -1;
01394 this->x_extent = 3;
01395 this->y_extent = 3;
01396 this->z_extent = 6;
01397 this->x_bb_offs = 0;
01398 this->y_bb_offs = 0;
01399
01400 if (!IsDiagonalDirection(direction)) {
01401 static const int _sign_table[] =
01402 {
01403
01404 -1, -1,
01405 -1, 1,
01406 1, 1,
01407 1, -1,
01408 };
01409
01410 int half_shorten = (VEHICLE_LENGTH - this->gcache.cached_veh_length) / 2;
01411
01412
01413 this->x_offs -= half_shorten * _sign_table[direction];
01414 this->y_offs -= half_shorten * _sign_table[direction + 1];
01415 this->x_extent += this->x_bb_offs = half_shorten * _sign_table[direction];
01416 this->y_extent += this->y_bb_offs = half_shorten * _sign_table[direction + 1];
01417 } else {
01418 switch (direction) {
01419
01420
01421 case DIR_NE:
01422 this->x_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01423 this->x_extent = this->gcache.cached_veh_length - 1;
01424 this->x_bb_offs = -1;
01425 break;
01426
01427 case DIR_NW:
01428 this->y_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01429 this->y_extent = this->gcache.cached_veh_length - 1;
01430 this->y_bb_offs = -1;
01431 break;
01432
01433
01434
01435 case DIR_SW:
01436 this->x_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01437 this->x_extent = VEHICLE_LENGTH - 1;
01438 this->x_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01439 break;
01440
01441 case DIR_SE:
01442 this->y_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01443 this->y_extent = VEHICLE_LENGTH - 1;
01444 this->y_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01445 break;
01446
01447 default:
01448 NOT_REACHED();
01449 }
01450 }
01451 }
01452
01457 static void MarkTrainAsStuck(Train *v)
01458 {
01459 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01460
01461 SetBit(v->flags, VRF_TRAIN_STUCK);
01462
01463 v->wait_counter = 0;
01464
01465
01466 v->cur_speed = 0;
01467 v->subspeed = 0;
01468 v->SetLastSpeed();
01469
01470 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01471 }
01472 }
01473
01481 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01482 {
01483 uint16 flag1 = *swap_flag1;
01484 uint16 flag2 = *swap_flag2;
01485
01486
01487 ClrBit(*swap_flag1, GVF_GOINGUP_BIT);
01488 ClrBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01489 ClrBit(*swap_flag2, GVF_GOINGUP_BIT);
01490 ClrBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01491
01492
01493 if (HasBit(flag1, GVF_GOINGUP_BIT)) {
01494 SetBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01495 } else if (HasBit(flag1, GVF_GOINGDOWN_BIT)) {
01496 SetBit(*swap_flag2, GVF_GOINGUP_BIT);
01497 }
01498 if (HasBit(flag2, GVF_GOINGUP_BIT)) {
01499 SetBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01500 } else if (HasBit(flag2, GVF_GOINGDOWN_BIT)) {
01501 SetBit(*swap_flag1, GVF_GOINGUP_BIT);
01502 }
01503 }
01504
01509 static void UpdateStatusAfterSwap(Train *v)
01510 {
01511
01512 if (v->track != TRACK_BIT_DEPOT) v->direction = ReverseDir(v->direction);
01513
01514
01515 if (v->track != TRACK_BIT_WORMHOLE) {
01516 VehicleEnterTile(v, v->tile, v->x_pos, v->y_pos);
01517 } else {
01518
01519
01520
01521
01522 TileIndex vt = TileVirtXY(v->x_pos, v->y_pos);
01523 if (IsTileType(vt, MP_TUNNELBRIDGE)) {
01524 VehicleEnterTile(v, vt, v->x_pos, v->y_pos);
01525 if (v->track != TRACK_BIT_WORMHOLE && IsBridgeTile(v->tile)) {
01526
01527
01528
01529 VehicleUpdatePosition(v);
01530 v->UpdateInclination(true, true);
01531 return;
01532 }
01533 }
01534 }
01535
01536 VehicleUpdatePosition(v);
01537 v->UpdateViewport(true, true);
01538 }
01539
01546 void ReverseTrainSwapVeh(Train *v, int l, int r)
01547 {
01548 Train *a, *b;
01549
01550
01551 for (a = v; l != 0; l--) a = a->Next();
01552 for (b = v; r != 0; r--) b = b->Next();
01553
01554 if (a != b) {
01555
01556 {
01557 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus & VS_HIDDEN);
01558 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus & VS_HIDDEN);
01559 a->vehstatus = tmp;
01560 }
01561
01562 Swap(a->track, b->track);
01563 Swap(a->direction, b->direction);
01564 Swap(a->x_pos, b->x_pos);
01565 Swap(a->y_pos, b->y_pos);
01566 Swap(a->tile, b->tile);
01567 Swap(a->z_pos, b->z_pos);
01568
01569 SwapTrainFlags(&a->gv_flags, &b->gv_flags);
01570
01571 UpdateStatusAfterSwap(a);
01572 UpdateStatusAfterSwap(b);
01573 } else {
01574
01575
01576
01577 SwapTrainFlags(&a->gv_flags, &a->gv_flags);
01578 UpdateStatusAfterSwap(a);
01579 }
01580 }
01581
01582
01588 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01589 {
01590 return (v->type == VEH_TRAIN) ? v : NULL;
01591 }
01592
01593
01600 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01601 {
01602 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01603
01604 Train *t = Train::From(v);
01605 if (!t->IsFrontEngine()) return NULL;
01606
01607 TileIndex tile = *(TileIndex *)data;
01608
01609 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01610
01611 return t;
01612 }
01613
01614
01621 static bool TrainApproachingCrossing(TileIndex tile)
01622 {
01623 assert(IsLevelCrossingTile(tile));
01624
01625 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01626 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01627
01628 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01629
01630 dir = ReverseDiagDir(dir);
01631 tile_from = tile + TileOffsByDiagDir(dir);
01632
01633 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01634 }
01635
01636
01643 void UpdateLevelCrossing(TileIndex tile, bool sound)
01644 {
01645 assert(IsLevelCrossingTile(tile));
01646
01647
01648 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01649
01650 if (new_state != IsCrossingBarred(tile)) {
01651 if (new_state && sound) {
01652 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01653 }
01654 SetCrossingBarred(tile, new_state);
01655 MarkTileDirtyByTile(tile);
01656 }
01657 }
01658
01659
01665 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01666 {
01667 if (!IsCrossingBarred(tile)) {
01668 BarCrossing(tile);
01669 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01670 MarkTileDirtyByTile(tile);
01671 }
01672 }
01673
01674
01680 static void AdvanceWagonsBeforeSwap(Train *v)
01681 {
01682 Train *base = v;
01683 Train *first = base;
01684 Train *last = v->Last();
01685 uint length = CountVehiclesInChain(v);
01686
01687 while (length > 2) {
01688 last = last->Previous();
01689 first = first->Next();
01690
01691 int differential = base->CalcNextVehicleOffset() - last->CalcNextVehicleOffset();
01692
01693
01694
01695 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01696
01697 base = first;
01698 length -= 2;
01699 }
01700 }
01701
01702
01708 static void AdvanceWagonsAfterSwap(Train *v)
01709 {
01710
01711 Train *dep = v;
01712 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01713 dep = dep->Next();
01714 }
01715
01716 Train *leave = dep->Next();
01717
01718 if (leave != NULL) {
01719
01720 int d = TicksToLeaveDepot(dep);
01721
01722 if (d <= 0) {
01723 leave->vehstatus &= ~VS_HIDDEN;
01724 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01725 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01726 }
01727 } else {
01728 dep = NULL;
01729 }
01730
01731 Train *base = v;
01732 Train *first = base;
01733 Train *last = v->Last();
01734 uint length = CountVehiclesInChain(v);
01735
01736
01737
01738 bool nomove = (dep == NULL);
01739
01740 while (length > 2) {
01741
01742
01743 if (base == dep) break;
01744
01745
01746 if (last == dep) nomove = true;
01747
01748 last = last->Previous();
01749 first = first->Next();
01750
01751 int differential = last->CalcNextVehicleOffset() - base->CalcNextVehicleOffset();
01752
01753
01754 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01755
01756 base = first;
01757 length -= 2;
01758 }
01759 }
01760
01765 void ReverseTrainDirection(Train *v)
01766 {
01767 if (IsRailDepotTile(v->tile)) {
01768 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01769 }
01770
01771
01772 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01773
01774
01775 TileIndex crossing = TrainApproachingCrossingTile(v);
01776
01777
01778 int r = CountVehiclesInChain(v) - 1;
01779
01780 AdvanceWagonsBeforeSwap(v);
01781
01782
01783 int l = 0;
01784 do {
01785 ReverseTrainSwapVeh(v, l++, r--);
01786 } while (l <= r);
01787
01788 AdvanceWagonsAfterSwap(v);
01789
01790 if (IsRailDepotTile(v->tile)) {
01791 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01792 }
01793
01794 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01795
01796 ClrBit(v->flags, VRF_REVERSING);
01797
01798
01799 v->ConsistChanged(true);
01800
01801
01802 for (Train *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01803
01804
01805 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01806
01807
01808 crossing = TrainApproachingCrossingTile(v);
01809 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01810
01811
01812 if (v->track == TRACK_BIT_DEPOT) {
01813
01814 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01815 ClrBit(v->flags, VRF_TRAIN_STUCK);
01816 return;
01817 }
01818
01819
01820
01821 DiagDirection dir = TrainExitDir(v->direction, v->track);
01822 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01823
01824 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01825
01826
01827 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01828 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01829 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01830
01831 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01832 if (TryPathReserve(v, false, first_tile_okay)) {
01833
01834 CheckNextTrainTile(v);
01835 } else if (v->current_order.GetType() != OT_LOADING) {
01836
01837 MarkTrainAsStuck(v);
01838 }
01839 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01840
01841 ClrBit(v->flags, VRF_TRAIN_STUCK);
01842 v->wait_counter = 0;
01843 }
01844 }
01845
01855 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01856 {
01857 Train *v = Train::GetIfValid(p1);
01858 if (v == NULL) return CMD_ERROR;
01859
01860 CommandCost ret = CheckOwnership(v->owner);
01861 if (ret.Failed()) return ret;
01862
01863 if (p2 != 0) {
01864
01865
01866 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01867 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01868 }
01869 if (!HasBit(EngInfo(v->engine_type)->misc_flags, EF_RAIL_FLIPS)) return CMD_ERROR;
01870
01871 Train *front = v->First();
01872
01873 if (!front->IsStoppedInDepot()) {
01874 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01875 }
01876
01877 if (flags & DC_EXEC) {
01878 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01879
01880 front->ConsistChanged(false);
01881 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
01882 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
01883 SetWindowDirty(WC_VEHICLE_VIEW, front->index);
01884 SetWindowClassesDirty(WC_TRAINS_LIST);
01885 }
01886 } else {
01887
01888 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01889
01890 if (flags & DC_EXEC) {
01891
01892 if (v->current_order.IsType(OT_LOADING)) {
01893 const Vehicle *last = v;
01894 while (last->Next() != NULL) last = last->Next();
01895
01896
01897 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01898 v->LeaveStation();
01899 }
01900 }
01901
01902
01903 v->force_proceed = TFP_NONE;
01904 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01905
01906 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01907 ToggleBit(v->flags, VRF_REVERSING);
01908 } else {
01909 v->cur_speed = 0;
01910 v->SetLastSpeed();
01911 HideFillingPercent(&v->fill_percent_te_id);
01912 ReverseTrainDirection(v);
01913 }
01914 }
01915 }
01916 return CommandCost();
01917 }
01918
01928 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01929 {
01930 Train *t = Train::GetIfValid(p1);
01931 if (t == NULL) return CMD_ERROR;
01932
01933 CommandCost ret = CheckOwnership(t->owner);
01934 if (ret.Failed()) return ret;
01935
01936
01937 if (flags & DC_EXEC) {
01938
01939
01940
01941
01942
01943 t->force_proceed = t->force_proceed == TFP_SIGNAL ? TFP_NONE : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? TFP_STUCK : TFP_SIGNAL;
01944 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
01945 }
01946
01947 return CommandCost();
01948 }
01949
01957 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
01958 {
01959 assert(!(v->vehstatus & VS_CRASHED));
01960
01961 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
01962
01963 PBSTileInfo origin = FollowTrainReservation(v);
01964 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
01965
01966 switch (_settings_game.pf.pathfinder_for_trains) {
01967 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
01968 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
01969
01970 default: NOT_REACHED();
01971 }
01972 }
01973
01981 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
01982 {
01983 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
01984 if (tfdd.best_length == UINT_MAX) return false;
01985
01986 if (location != NULL) *location = tfdd.tile;
01987 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
01988 if (reverse != NULL) *reverse = tfdd.reverse;
01989
01990 return true;
01991 }
01992
01994 void Train::PlayLeaveStationSound() const
01995 {
01996 static const SoundFx sfx[] = {
01997 SND_04_TRAIN,
01998 SND_0A_TRAIN_HORN,
01999 SND_0A_TRAIN_HORN,
02000 SND_47_MAGLEV_2,
02001 SND_41_MAGLEV
02002 };
02003
02004 if (PlayVehicleSound(this, VSE_START)) return;
02005
02006 EngineID engtype = this->engine_type;
02007 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02008 }
02009
02014 static void CheckNextTrainTile(Train *v)
02015 {
02016
02017 if (_settings_game.pf.path_backoff_interval == 255) return;
02018
02019
02020 if (v->track == TRACK_BIT_DEPOT) return;
02021
02022 switch (v->current_order.GetType()) {
02023
02024 case OT_GOTO_DEPOT:
02025 if (v->tile == v->dest_tile) return;
02026 break;
02027
02028 case OT_GOTO_WAYPOINT:
02029
02030 if (IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
02031 break;
02032
02033 case OT_NOTHING:
02034 case OT_LEAVESTATION:
02035 case OT_LOADING:
02036
02037 if (v->GetNumOrders() > 0) return;
02038 break;
02039
02040 default:
02041 break;
02042 }
02043
02044 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02045
02046 Trackdir td = v->GetVehicleTrackdir();
02047
02048
02049 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02050 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02051 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02052
02053 CFollowTrackRail ft(v);
02054 if (!ft.Follow(v->tile, td)) return;
02055
02056 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02057
02058 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02059 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02060
02061 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02062 if (_settings_game.pf.forbid_90_deg) {
02063 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02064 }
02065 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02066 }
02067 }
02068 }
02069 }
02070
02076 static bool CheckTrainStayInDepot(Train *v)
02077 {
02078
02079 for (const Train *u = v; u != NULL; u = u->Next()) {
02080 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02081 }
02082
02083
02084 if (v->gcache.cached_power == 0) {
02085 v->vehstatus |= VS_STOPPED;
02086 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02087 return true;
02088 }
02089
02090 SigSegState seg_state;
02091
02092 if (v->force_proceed == TFP_NONE) {
02093
02094 if (++v->wait_counter < 37) {
02095 SetWindowClassesDirty(WC_TRAINS_LIST);
02096 return true;
02097 }
02098
02099 v->wait_counter = 0;
02100
02101 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02102 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02103
02104 SetWindowClassesDirty(WC_TRAINS_LIST);
02105 return true;
02106 }
02107 } else {
02108 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02109 }
02110
02111
02112 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02113
02114 if (HasDepotReservation(v->tile)) return true;
02115 SetDepotReservation(v->tile, true);
02116 VehicleEnterDepot(v);
02117 return true;
02118 }
02119
02120
02121 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == TFP_NONE) {
02122
02123 SetWindowClassesDirty(WC_TRAINS_LIST);
02124 MarkTrainAsStuck(v);
02125 return true;
02126 }
02127
02128 SetDepotReservation(v->tile, true);
02129 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02130
02131 VehicleServiceInDepot(v);
02132 SetWindowClassesDirty(WC_TRAINS_LIST);
02133 v->PlayLeaveStationSound();
02134
02135 v->track = TRACK_BIT_X;
02136 if (v->direction & 2) v->track = TRACK_BIT_Y;
02137
02138 v->vehstatus &= ~VS_HIDDEN;
02139 v->cur_speed = 0;
02140
02141 v->UpdateViewport(true, true);
02142 VehicleUpdatePosition(v);
02143 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02144 v->UpdateAcceleration();
02145 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02146
02147 return false;
02148 }
02149
02156 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02157 {
02158 DiagDirection dir = TrackdirToExitdir(track_dir);
02159
02160 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02161
02162 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02163 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02164
02165 if (TunnelBridgeIsFree(tile, end, v).Succeeded()) {
02166
02167 SetTunnelBridgeReservation(tile, false);
02168 SetTunnelBridgeReservation(end, false);
02169
02170 if (_settings_client.gui.show_track_reservation) {
02171 MarkTileDirtyByTile(tile);
02172 MarkTileDirtyByTile(end);
02173 }
02174 }
02175 }
02176 } else if (IsRailStationTile(tile)) {
02177 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02178
02179
02180 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02181 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02182 }
02183 } else {
02184
02185 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02186 }
02187 }
02188
02195 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02196 {
02197 assert(v->IsFrontEngine());
02198
02199 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02200 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02201 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02202 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02203
02204
02205 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02206
02207 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02208 while (ft.Follow(tile, td)) {
02209 tile = ft.m_new_tile;
02210 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02211 td = RemoveFirstTrackdir(&bits);
02212 assert(bits == TRACKDIR_BIT_NONE);
02213
02214 if (!IsValidTrackdir(td)) break;
02215
02216 if (IsTileType(tile, MP_RAILWAY)) {
02217 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02218
02219 UnreserveRailTrack(tile, TrackdirToTrack(td));
02220 break;
02221 }
02222 if (HasPbsSignalOnTrackdir(tile, td)) {
02223 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02224
02225 break;
02226 } else {
02227
02228 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02229 MarkTileDirtyByTile(tile);
02230 }
02231 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02232 break;
02233 }
02234 }
02235
02236
02237 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);
02238
02239 free_tile = true;
02240 }
02241 }
02242
02243 static const byte _initial_tile_subcoord[6][4][3] = {
02244 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02245 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02246 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02247 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02248 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02249 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02250 };
02251
02264 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool &path_found, bool do_track_reservation, PBSTileInfo *dest)
02265 {
02266 switch (_settings_game.pf.pathfinder_for_trains) {
02267 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02268 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02269
02270 default: NOT_REACHED();
02271 }
02272 }
02273
02279 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02280 {
02281 PBSTileInfo origin = FollowTrainReservation(v);
02282
02283 CFollowTrackRail ft(v);
02284
02285 TileIndex tile = origin.tile;
02286 Trackdir cur_td = origin.trackdir;
02287 while (ft.Follow(tile, cur_td)) {
02288 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02289
02290 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02291 }
02292
02293 if (_settings_game.pf.forbid_90_deg) {
02294 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02295 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02296 }
02297
02298
02299 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02300 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02301
02302
02303
02304
02305
02306
02307 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02308
02309
02310
02311 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02312
02313
02314 if (new_tracks != NULL) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02315 if (enterdir != NULL) *enterdir = ft.m_exitdir;
02316 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02317 }
02318
02319 tile = ft.m_new_tile;
02320 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02321
02322 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02323 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02324 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02325
02326 return PBSTileInfo(tile, cur_td, true);
02327 }
02328
02329 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02330 }
02331
02332 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02333
02334 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02335 }
02336
02337
02338 tile = origin.tile;
02339 cur_td = origin.trackdir;
02340 TileIndex stopped = ft.m_old_tile;
02341 Trackdir stopped_td = ft.m_old_td;
02342 while (tile != stopped || cur_td != stopped_td) {
02343 if (!ft.Follow(tile, cur_td)) break;
02344
02345 if (_settings_game.pf.forbid_90_deg) {
02346 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02347 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02348 }
02349 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02350
02351 tile = ft.m_new_tile;
02352 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02353
02354 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02355 }
02356
02357
02358 return PBSTileInfo();
02359 }
02360
02371 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02372 {
02373 switch (_settings_game.pf.pathfinder_for_trains) {
02374 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02375 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02376
02377 default: NOT_REACHED();
02378 }
02379 }
02380
02382 class VehicleOrderSaver {
02383 private:
02384 Train *v;
02385 Order old_order;
02386 TileIndex old_dest_tile;
02387 StationID old_last_station_visited;
02388 VehicleOrderID index;
02389 bool suppress_implicit_orders;
02390
02391 public:
02392 VehicleOrderSaver(Train *_v) :
02393 v(_v),
02394 old_order(_v->current_order),
02395 old_dest_tile(_v->dest_tile),
02396 old_last_station_visited(_v->last_station_visited),
02397 index(_v->cur_real_order_index),
02398 suppress_implicit_orders(HasBit(_v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS))
02399 {
02400 }
02401
02402 ~VehicleOrderSaver()
02403 {
02404 this->v->current_order = this->old_order;
02405 this->v->dest_tile = this->old_dest_tile;
02406 this->v->last_station_visited = this->old_last_station_visited;
02407 SB(this->v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS, 1, suppress_implicit_orders ? 1: 0);
02408 }
02409
02415 bool SwitchToNextOrder(bool skip_first)
02416 {
02417 if (this->v->GetNumOrders() == 0) return false;
02418
02419 if (skip_first) ++this->index;
02420
02421 int depth = 0;
02422
02423 do {
02424
02425 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02426
02427 Order *order = this->v->GetOrder(this->index);
02428 assert(order != NULL);
02429
02430 switch (order->GetType()) {
02431 case OT_GOTO_DEPOT:
02432
02433 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02434 case OT_GOTO_STATION:
02435 case OT_GOTO_WAYPOINT:
02436 this->v->current_order = *order;
02437 return UpdateOrderDest(this->v, order, 0, true);
02438 case OT_CONDITIONAL: {
02439 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02440 if (next != INVALID_VEH_ORDER_ID) {
02441 depth++;
02442 this->index = next;
02443
02444 continue;
02445 }
02446 break;
02447 }
02448 default:
02449 break;
02450 }
02451
02452
02453 ++this->index;
02454 depth++;
02455 } while (this->index != this->v->cur_real_order_index && depth < this->v->GetNumOrders());
02456
02457 return false;
02458 }
02459 };
02460
02461
02462 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02463 {
02464 Track best_track = INVALID_TRACK;
02465 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02466 bool changed_signal = false;
02467
02468 assert((tracks & ~TRACK_BIT_MASK) == 0);
02469
02470 if (got_reservation != NULL) *got_reservation = false;
02471
02472
02473 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02474
02475 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02476
02477
02478 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02479 Track track = FindFirstTrack(tracks);
02480
02481 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02482 do_track_reservation = true;
02483 changed_signal = true;
02484 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02485 } else if (!do_track_reservation) {
02486 return track;
02487 }
02488 best_track = track;
02489 }
02490
02491 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02492 DiagDirection dest_enterdir = enterdir;
02493 if (do_track_reservation) {
02494 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02495 if (res_dest.tile == INVALID_TILE) {
02496
02497 if (mark_stuck) MarkTrainAsStuck(v);
02498 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02499 return FindFirstTrack(tracks);
02500 }
02501 if (res_dest.okay) {
02502
02503 if (got_reservation != NULL) *got_reservation = true;
02504 if (changed_signal) MarkTileDirtyByTile(tile);
02505 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02506 return best_track;
02507 }
02508
02509
02510
02511
02512 CheckIfTrainNeedsService(v);
02513 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02514 }
02515
02516
02517 VehicleOrderSaver orders(v);
02518
02519
02520
02521
02522
02523
02524
02525 if (v->current_order.IsType(OT_LEAVESTATION)) {
02526 orders.SwitchToNextOrder(false);
02527 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02528 v->current_order.IsType(OT_GOTO_STATION) ?
02529 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02530 v->tile == v->dest_tile))) {
02531 orders.SwitchToNextOrder(true);
02532 }
02533
02534 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02535
02536 bool path_found = true;
02537 TileIndex new_tile = res_dest.tile;
02538
02539 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, path_found, do_track_reservation, &res_dest);
02540 if (new_tile == tile) best_track = next_track;
02541 v->HandlePathfindingResult(path_found);
02542 }
02543
02544
02545 if (!do_track_reservation) return best_track;
02546
02547
02548 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02549 if (mark_stuck) MarkTrainAsStuck(v);
02550 FreeTrainTrackReservation(v);
02551 return best_track;
02552 }
02553
02554
02555 if (res_dest.tile == INVALID_TILE) {
02556
02557 PBSTileInfo origin = FollowTrainReservation(v);
02558 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02559 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02560 best_track = FindFirstTrack(res);
02561 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02562 if (got_reservation != NULL) *got_reservation = true;
02563 if (changed_signal) MarkTileDirtyByTile(tile);
02564 } else {
02565 FreeTrainTrackReservation(v);
02566 if (mark_stuck) MarkTrainAsStuck(v);
02567 }
02568 return best_track;
02569 }
02570
02571 if (got_reservation != NULL) *got_reservation = true;
02572
02573
02574 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02575
02576 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02577 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02578 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02579 if (_settings_game.pf.forbid_90_deg) {
02580 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02581 }
02582
02583
02584 if (orders.SwitchToNextOrder(true)) {
02585 PBSTileInfo cur_dest;
02586 bool path_found;
02587 DoTrainPathfind(v, next_tile, exitdir, reachable, path_found, true, &cur_dest);
02588 if (cur_dest.tile != INVALID_TILE) {
02589 res_dest = cur_dest;
02590 if (res_dest.okay) continue;
02591
02592 FreeTrainTrackReservation(v);
02593 if (mark_stuck) MarkTrainAsStuck(v);
02594 if (got_reservation != NULL) *got_reservation = false;
02595 changed_signal = false;
02596 break;
02597 }
02598 }
02599
02600 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02601 FreeTrainTrackReservation(v);
02602 if (mark_stuck) MarkTrainAsStuck(v);
02603 if (got_reservation != NULL) *got_reservation = false;
02604 changed_signal = false;
02605 }
02606 break;
02607 }
02608
02609 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02610
02611 if (changed_signal) MarkTileDirtyByTile(tile);
02612
02613 return best_track;
02614 }
02615
02624 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02625 {
02626 assert(v->IsFrontEngine());
02627
02628
02629
02630
02631 if (v->track == TRACK_BIT_DEPOT) {
02632 if (HasDepotReservation(v->tile)) {
02633 if (mark_as_stuck) MarkTrainAsStuck(v);
02634 return false;
02635 } else {
02636
02637 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02638 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02639 }
02640 }
02641
02642 Vehicle *other_train = NULL;
02643 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02644
02645
02646
02647
02648
02649 if (other_train != NULL && other_train->index != v->index) {
02650 if (mark_as_stuck) MarkTrainAsStuck(v);
02651 return false;
02652 }
02653
02654 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02655
02656 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02657 ClrBit(v->flags, VRF_TRAIN_STUCK);
02658 return true;
02659 }
02660
02661
02662 if (v->track == TRACK_BIT_DEPOT) {
02663 SetDepotReservation(v->tile, true);
02664 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02665 }
02666
02667 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02668 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02669 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02670
02671 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02672
02673 bool res_made = false;
02674 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02675
02676 if (!res_made) {
02677
02678 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02679 return false;
02680 }
02681
02682 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02683 v->wait_counter = 0;
02684 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02685 }
02686 ClrBit(v->flags, VRF_TRAIN_STUCK);
02687 return true;
02688 }
02689
02690
02691 static bool CheckReverseTrain(const Train *v)
02692 {
02693 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02694 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02695 !(v->direction & 1)) {
02696 return false;
02697 }
02698
02699 assert(v->track != TRACK_BIT_NONE);
02700
02701 switch (_settings_game.pf.pathfinder_for_trains) {
02702 case VPF_NPF: return NPFTrainCheckReverse(v);
02703 case VPF_YAPF: return YapfTrainCheckReverse(v);
02704
02705 default: NOT_REACHED();
02706 }
02707 }
02708
02714 TileIndex Train::GetOrderStationLocation(StationID station)
02715 {
02716 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02717
02718 const Station *st = Station::Get(station);
02719 if (!(st->facilities & FACIL_TRAIN)) {
02720
02721 this->IncrementRealOrderIndex();
02722 return 0;
02723 }
02724
02725 return st->xy;
02726 }
02727
02729 void Train::MarkDirty()
02730 {
02731 Train *v = this;
02732 do {
02733 v->UpdateViewport(false, false);
02734 } while ((v = v->Next()) != NULL);
02735
02736
02737 this->CargoChanged();
02738 this->UpdateAcceleration();
02739 }
02740
02748 int Train::UpdateSpeed()
02749 {
02750 switch (_settings_game.vehicle.train_acceleration_model) {
02751 default: NOT_REACHED();
02752 case AM_ORIGINAL:
02753 return this->DoUpdateSpeed(this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2), 0, min(this->gcache.cached_max_track_speed, this->current_order.max_speed));
02754
02755 case AM_REALISTIC:
02756 return this->DoUpdateSpeed(this->GetAcceleration(), this->GetAccelerationStatus() == AS_BRAKE ? 0 : 2, this->GetCurrentMaxSpeed());
02757 }
02758 }
02759
02765 static void TrainEnterStation(Train *v, StationID station)
02766 {
02767 v->last_station_visited = station;
02768
02769
02770 Station *st = Station::Get(station);
02771 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02772 st->had_vehicle_of_type |= HVOT_TRAIN;
02773 SetDParam(0, st->index);
02774 AddVehicleNewsItem(
02775 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02776 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
02777 v->index,
02778 st->index
02779 );
02780 AI::NewEvent(v->owner, new ScriptEventStationFirstVehicle(st->index, v->index));
02781 Game::NewEvent(new ScriptEventStationFirstVehicle(st->index, v->index));
02782 }
02783
02784 v->force_proceed = TFP_NONE;
02785 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02786
02787 v->BeginLoading();
02788
02789 TriggerStationAnimation(st, v->tile, SAT_TRAIN_ARRIVES);
02790 }
02791
02792
02793 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
02794 {
02795 return IsTileOwner(tile, v->owner) &&
02796 (!v->IsFrontEngine() || HasBit(v->compatible_railtypes, GetRailType(tile)));
02797 }
02798
02800 struct AccelerationSlowdownParams {
02801 byte small_turn;
02802 byte large_turn;
02803 byte z_up;
02804 byte z_down;
02805 };
02806
02808 static const AccelerationSlowdownParams _accel_slowdown[] = {
02809
02810 {256 / 4, 256 / 2, 256 / 4, 2},
02811 {256 / 4, 256 / 2, 256 / 4, 2},
02812 {0, 256 / 2, 256 / 4, 2},
02813 };
02814
02820 static inline void AffectSpeedByZChange(Train *v, int old_z)
02821 {
02822 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
02823
02824 const AccelerationSlowdownParams *asp = &_accel_slowdown[GetRailTypeInfo(v->railtype)->acceleration_type];
02825
02826 if (old_z < v->z_pos) {
02827 v->cur_speed -= (v->cur_speed * asp->z_up >> 8);
02828 } else {
02829 uint16 spd = v->cur_speed + asp->z_down;
02830 if (spd <= v->gcache.cached_max_track_speed) v->cur_speed = spd;
02831 }
02832 }
02833
02834 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
02835 {
02836 if (IsTileType(tile, MP_RAILWAY) &&
02837 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
02838 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
02839 Trackdir trackdir = FindFirstTrackdir(tracks);
02840 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
02841
02842 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
02843 }
02844 }
02845 return false;
02846 }
02847
02849 void Train::ReserveTrackUnderConsist() const
02850 {
02851 for (const Train *u = this; u != NULL; u = u->Next()) {
02852 switch (u->track) {
02853 case TRACK_BIT_WORMHOLE:
02854 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
02855 break;
02856 case TRACK_BIT_DEPOT:
02857 break;
02858 default:
02859 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
02860 break;
02861 }
02862 }
02863 }
02864
02871 uint Train::Crash(bool flooded)
02872 {
02873 uint pass = 0;
02874 if (this->IsFrontEngine()) {
02875 pass += 2;
02876
02877
02878
02879 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
02880 for (const Train *v = this; v != NULL; v = v->Next()) {
02881 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
02882 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
02883
02884
02885 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
02886 }
02887 }
02888
02889
02890
02891 TileIndex crossing = TrainApproachingCrossingTile(this);
02892 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
02893
02894
02895 HideFillingPercent(&this->fill_percent_te_id);
02896 }
02897
02898 pass += this->GroundVehicleBase::Crash(flooded);
02899
02900 this->crash_anim_pos = flooded ? 4000 : 1;
02901 return pass;
02902 }
02903
02910 static uint TrainCrashed(Train *v)
02911 {
02912 uint num = 0;
02913
02914
02915 if (!(v->vehstatus & VS_CRASHED)) {
02916 num = v->Crash();
02917 AI::NewEvent(v->owner, new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02918 Game::NewEvent(new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02919 }
02920
02921
02922
02923 v->ReserveTrackUnderConsist();
02924
02925 return num;
02926 }
02927
02929 struct TrainCollideChecker {
02930 Train *v;
02931 uint num;
02932 };
02933
02940 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
02941 {
02942 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
02943
02944
02945 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
02946
02947
02948 if (v->owner != tcc->v->owner) return NULL;
02949
02950
02951 Train *coll = Train::From(v)->First();
02952
02953
02954 if (coll == tcc->v) return NULL;
02955
02956 int x_diff = v->x_pos - tcc->v->x_pos;
02957 int y_diff = v->y_pos - tcc->v->y_pos;
02958
02959
02960
02961
02962
02963 uint hash = (y_diff + 7) | (x_diff + 7);
02964 if (hash & ~15) return NULL;
02965
02966
02967 int min_diff = (Train::From(v)->gcache.cached_veh_length + 1) / 2 + (tcc->v->gcache.cached_veh_length + 1) / 2 - 1;
02968 if (x_diff * x_diff + y_diff * y_diff > min_diff * min_diff) return NULL;
02969
02970
02971 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
02972
02973
02974 tcc->num += TrainCrashed(tcc->v);
02975 tcc->num += TrainCrashed(coll);
02976
02977 return NULL;
02978 }
02979
02987 static bool CheckTrainCollision(Train *v)
02988 {
02989
02990 if (v->track == TRACK_BIT_DEPOT) return false;
02991
02992 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
02993
02994 TrainCollideChecker tcc;
02995 tcc.v = v;
02996 tcc.num = 0;
02997
02998
02999 if (v->track == TRACK_BIT_WORMHOLE) {
03000 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03001 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03002 } else {
03003 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03004 }
03005
03006
03007 if (tcc.num == 0) return false;
03008
03009 SetDParam(0, tcc.num);
03010 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
03011 NS_ACCIDENT,
03012 v->index
03013 );
03014
03015 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03016 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03017 return true;
03018 }
03019
03020 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03021 {
03022 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03023
03024 Train *t = Train::From(v);
03025 DiagDirection exitdir = *(DiagDirection *)data;
03026
03027
03028 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03029
03030 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03031
03032 return t;
03033 }
03034
03042 bool TrainController(Train *v, Vehicle *nomove, bool reverse)
03043 {
03044 Train *first = v->First();
03045 Train *prev;
03046 bool direction_changed = false;
03047
03048
03049 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03050 DiagDirection enterdir = DIAGDIR_BEGIN;
03051 bool update_signals_crossing = false;
03052
03053 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03054 if (v->track != TRACK_BIT_WORMHOLE) {
03055
03056 if (gp.old_tile == gp.new_tile) {
03057
03058 if (v->track == TRACK_BIT_DEPOT) {
03059
03060 gp.x = v->x_pos;
03061 gp.y = v->y_pos;
03062 } else {
03063
03064
03065
03066 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v, reverse)) return false;
03067
03068 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03069 if (HasBit(r, VETS_CANNOT_ENTER)) {
03070 goto invalid_rail;
03071 }
03072 if (HasBit(r, VETS_ENTERED_STATION)) {
03073
03074 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03075 }
03076 }
03077 } else {
03078
03079
03080
03081 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03082 assert(IsValidDiagDirection(enterdir));
03083
03084
03085
03086 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03087 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03088
03089 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03090 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03091
03092 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03093 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03094
03095
03096 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03097 }
03098
03099 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03100
03101
03102
03103 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03104
03105 TrackBits chosen_track;
03106 if (prev == NULL) {
03107
03108
03109 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03110 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03111
03112 if (v->force_proceed != TFP_NONE && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03113
03114
03115
03116
03117 Trackdir dir = FindFirstTrackdir(trackdirbits);
03118 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03119 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03120
03121
03122 v->force_proceed = (v->force_proceed == TFP_SIGNAL) ? TFP_STUCK : TFP_NONE;
03123 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03124 }
03125 }
03126
03127
03128 if ((red_signals & chosen_track) && v->force_proceed == TFP_NONE) {
03129
03130 Trackdir i = FindFirstTrackdir(trackdirbits);
03131
03132
03133 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return false;
03134
03135 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03136 v->cur_speed = 0;
03137 v->subspeed = 0;
03138 v->progress = 255 - 100;
03139 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return false;
03140 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03141 v->cur_speed = 0;
03142 v->subspeed = 0;
03143 v->progress = 255 - 10;
03144 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03145 DiagDirection exitdir = TrackdirToExitdir(i);
03146 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03147
03148 exitdir = ReverseDiagDir(exitdir);
03149
03150
03151 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return false;
03152 }
03153 }
03154
03155
03156
03157
03158
03159 if (!_settings_game.pf.reverse_at_signals && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03160 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03161 v->wait_counter = 0;
03162 return false;
03163 }
03164 goto reverse_train_direction;
03165 } else {
03166 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03167 }
03168 } else {
03169
03170 if (prev->tile == gp.new_tile) {
03171
03172 if (prev->track == TRACK_BIT_WORMHOLE) {
03173
03174
03175 assert(IsTunnel(prev->tile));
03176 chosen_track = bits;
03177 } else {
03178 chosen_track = prev->track;
03179 }
03180 } else {
03181
03182
03183
03184
03185
03186
03187
03188 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03189 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03190 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03191 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03192 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03193 };
03194 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03195 assert(IsValidDiagDirection(exitdir));
03196 chosen_track = _connecting_track[enterdir][exitdir];
03197 }
03198 chosen_track &= bits;
03199 }
03200
03201
03202 assert(
03203 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03204 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03205 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03206
03207
03208 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03209 gp.x = (gp.x & ~0xF) | b[0];
03210 gp.y = (gp.y & ~0xF) | b[1];
03211 Direction chosen_dir = (Direction)b[2];
03212
03213
03214 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03215 if (HasBit(r, VETS_CANNOT_ENTER)) {
03216 goto invalid_rail;
03217 }
03218
03219 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03220 Track track = FindFirstTrack(chosen_track);
03221 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03222 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03223 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03224 MarkTileDirtyByTile(gp.new_tile);
03225 }
03226
03227
03228 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03229
03230 v->tile = gp.new_tile;
03231
03232 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03233 v->First()->ConsistChanged(true);
03234 }
03235
03236 v->track = chosen_track;
03237 assert(v->track);
03238 }
03239
03240
03241
03242 update_signals_crossing = true;
03243
03244 if (chosen_dir != v->direction) {
03245 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03246 const AccelerationSlowdownParams *asp = &_accel_slowdown[GetRailTypeInfo(v->railtype)->acceleration_type];
03247 DirDiff diff = DirDifference(v->direction, chosen_dir);
03248 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? asp->small_turn : asp->large_turn) * v->cur_speed >> 8;
03249 }
03250 direction_changed = true;
03251 v->direction = chosen_dir;
03252 }
03253
03254 if (v->IsFrontEngine()) {
03255 v->wait_counter = 0;
03256
03257
03258 TileIndex crossing = TrainApproachingCrossingTile(v);
03259 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03260
03261
03262 CheckNextTrainTile(v);
03263 }
03264
03265 if (HasBit(r, VETS_ENTERED_STATION)) {
03266
03267 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03268 }
03269 }
03270 } else {
03271
03272
03273
03274 if (!(v->vehstatus & VS_HIDDEN)) {
03275 Train *first = v->First();
03276 first->cur_speed = min(first->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03277 }
03278
03279 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03280
03281 if (v->IsFrontEngine()) {
03282 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03283 CheckNextTrainTile(v);
03284 }
03285
03286
03287 if (gp.old_tile == gp.new_tile) {
03288 gp.old_tile = GetOtherTunnelBridgeEnd(gp.old_tile);
03289 }
03290 } else {
03291 v->x_pos = gp.x;
03292 v->y_pos = gp.y;
03293 VehicleUpdatePosition(v);
03294 if ((v->vehstatus & VS_HIDDEN) == 0) VehicleUpdateViewport(v, true);
03295 continue;
03296 }
03297 }
03298
03299
03300 v->UpdateDeltaXY(v->direction);
03301
03302 v->x_pos = gp.x;
03303 v->y_pos = gp.y;
03304 VehicleUpdatePosition(v);
03305
03306
03307 int old_z = v->UpdateInclination(gp.new_tile != gp.old_tile, false);
03308
03309 if (prev == NULL) {
03310
03311 AffectSpeedByZChange(v, old_z);
03312 }
03313
03314 if (update_signals_crossing) {
03315 if (v->IsFrontEngine()) {
03316 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03317
03318
03319
03320
03321
03322
03323
03324
03325 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03326 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03327 !TryPathReserve(v)) {
03328 MarkTrainAsStuck(v);
03329 }
03330 }
03331 }
03332
03333
03334
03335 if (v->Next() == NULL) {
03336 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03337 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03338 }
03339 }
03340
03341
03342 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03343 }
03344
03345 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03346
03347 return true;
03348
03349 invalid_rail:
03350
03351 if (prev != NULL) error("Disconnecting train");
03352
03353 reverse_train_direction:
03354 if (reverse) {
03355 v->wait_counter = 0;
03356 v->cur_speed = 0;
03357 v->subspeed = 0;
03358 ReverseTrainDirection(v);
03359 }
03360
03361 return false;
03362 }
03363
03370 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03371 {
03372 TrackBits *trackbits = (TrackBits *)data;
03373
03374 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03375 TrackBits train_tbits = Train::From(v)->track;
03376 if (train_tbits == TRACK_BIT_WORMHOLE) {
03377
03378 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03379 } else if (train_tbits != TRACK_BIT_DEPOT) {
03380 *trackbits |= train_tbits;
03381 }
03382 }
03383
03384 return NULL;
03385 }
03386
03394 static void DeleteLastWagon(Train *v)
03395 {
03396 Train *first = v->First();
03397
03398
03399
03400
03401 Train *u = v;
03402 for (; v->Next() != NULL; v = v->Next()) u = v;
03403 u->SetNext(NULL);
03404
03405 if (first != v) {
03406
03407 first->ConsistChanged(false);
03408
03409
03410 if (first->track == TRACK_BIT_DEPOT) {
03411 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03412 }
03413 }
03414
03415
03416 TrackBits trackbits = v->track;
03417 TileIndex tile = v->tile;
03418 Owner owner = v->owner;
03419
03420 delete v;
03421 v = NULL;
03422
03423 if (trackbits == TRACK_BIT_WORMHOLE) {
03424
03425 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03426 }
03427
03428 Track track = TrackBitsToTrack(trackbits);
03429 if (HasReservedTracks(tile, trackbits)) {
03430 UnreserveRailTrack(tile, track);
03431
03432
03433 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03434 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03435
03436
03437 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03438 Track t;
03439 FOR_EACH_SET_TRACK(t, remaining_trackbits) TryReserveRailTrack(tile, t);
03440 }
03441
03442
03443 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03444
03445
03446 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03447 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03448 } else {
03449 SetSignalsOnBothDir(tile, track, owner);
03450 }
03451 }
03452
03457 static void ChangeTrainDirRandomly(Train *v)
03458 {
03459 static const DirDiff delta[] = {
03460 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03461 };
03462
03463 do {
03464
03465 if (!(v->vehstatus & VS_HIDDEN)) {
03466 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03467 v->UpdateDeltaXY(v->direction);
03468 v->cur_image = v->GetImage(v->direction, EIT_ON_MAP);
03469
03470
03471
03472 if (v->track != TRACK_BIT_WORMHOLE) {
03473 VehicleUpdatePosition(v);
03474 v->UpdateInclination(false, false);
03475 }
03476 }
03477 } while ((v = v->Next()) != NULL);
03478 }
03479
03485 static bool HandleCrashedTrain(Train *v)
03486 {
03487 int state = ++v->crash_anim_pos;
03488
03489 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03490 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03491 }
03492
03493 uint32 r;
03494 if (state <= 200 && Chance16R(1, 7, r)) {
03495 int index = (r * 10 >> 16);
03496
03497 Vehicle *u = v;
03498 do {
03499 if (--index < 0) {
03500 r = Random();
03501
03502 CreateEffectVehicleRel(u,
03503 GB(r, 8, 3) + 2,
03504 GB(r, 16, 3) + 2,
03505 GB(r, 0, 3) + 5,
03506 EV_EXPLOSION_SMALL);
03507 break;
03508 }
03509 } while ((u = u->Next()) != NULL);
03510 }
03511
03512 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03513
03514 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03515 bool ret = v->Next() != NULL;
03516 DeleteLastWagon(v);
03517 return ret;
03518 }
03519
03520 return true;
03521 }
03522
03524 static const uint16 _breakdown_speeds[16] = {
03525 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03526 };
03527
03528
03537 static bool TrainApproachingLineEnd(Train *v, bool signal, bool reverse)
03538 {
03539
03540 uint x = v->x_pos & 0xF;
03541 uint y = v->y_pos & 0xF;
03542
03543
03544
03545 switch (v->direction) {
03546 case DIR_N : x = ~x + ~y + 25; break;
03547 case DIR_NW: x = y;
03548 case DIR_NE: x = ~x + 16; break;
03549 case DIR_E : x = ~x + y + 9; break;
03550 case DIR_SE: x = y; break;
03551 case DIR_S : x = x + y - 7; break;
03552 case DIR_W : x = ~y + x + 9; break;
03553 default: break;
03554 }
03555
03556
03557
03558
03559
03560
03561 if (!signal && x + (v->gcache.cached_veh_length + 1) / 2 * (IsDiagonalDirection(v->direction) ? 1 : 2) >= TILE_SIZE) {
03562
03563 v->cur_speed = 0;
03564 if (reverse) ReverseTrainDirection(v);
03565 return false;
03566 }
03567
03568
03569 v->vehstatus |= VS_TRAIN_SLOWING;
03570 uint16 break_speed = _breakdown_speeds[x & 0xF];
03571 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03572
03573 return true;
03574 }
03575
03576
03582 static bool TrainCanLeaveTile(const Train *v)
03583 {
03584
03585 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03586
03587 TileIndex tile = v->tile;
03588
03589
03590 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03591 DiagDirection dir = GetTunnelBridgeDirection(tile);
03592 if (DiagDirToDir(dir) == v->direction) return false;
03593 }
03594
03595
03596 if (IsRailDepotTile(tile)) {
03597 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03598 if (DiagDirToDir(dir) == v->direction) return false;
03599 }
03600
03601 return true;
03602 }
03603
03604
03612 static TileIndex TrainApproachingCrossingTile(const Train *v)
03613 {
03614 assert(v->IsFrontEngine());
03615 assert(!(v->vehstatus & VS_CRASHED));
03616
03617 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03618
03619 DiagDirection dir = TrainExitDir(v->direction, v->track);
03620 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03621
03622
03623 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03624 !CheckCompatibleRail(v, tile)) {
03625 return INVALID_TILE;
03626 }
03627
03628 return tile;
03629 }
03630
03631
03639 static bool TrainCheckIfLineEnds(Train *v, bool reverse)
03640 {
03641
03642
03643 int t = v->breakdown_ctr;
03644 if (t > 1) {
03645 v->vehstatus |= VS_TRAIN_SLOWING;
03646
03647 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03648 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03649 } else {
03650 v->vehstatus &= ~VS_TRAIN_SLOWING;
03651 }
03652
03653 if (!TrainCanLeaveTile(v)) return true;
03654
03655
03656 DiagDirection dir = TrainExitDir(v->direction, v->track);
03657
03658 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03659
03660
03661 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03662 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03663
03664 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03665 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03666
03667
03668
03669
03670 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03671 if (_settings_game.pf.forbid_90_deg) {
03672 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03673 }
03674
03675
03676 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03677 return TrainApproachingLineEnd(v, false, reverse);
03678 }
03679
03680
03681 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true, reverse);
03682
03683
03684 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03685
03686 return true;
03687 }
03688
03689
03690 static bool TrainLocoHandler(Train *v, bool mode)
03691 {
03692
03693 if (v->vehstatus & VS_CRASHED) {
03694 return mode ? true : HandleCrashedTrain(v);
03695 }
03696
03697 if (v->force_proceed != TFP_NONE) {
03698 ClrBit(v->flags, VRF_TRAIN_STUCK);
03699 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03700 }
03701
03702
03703 if (v->HandleBreakdown()) return true;
03704
03705 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03706 ReverseTrainDirection(v);
03707 }
03708
03709
03710 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03711
03712 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03713 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03714 v->wait_counter = 0;
03715 v->cur_speed = 0;
03716 v->subspeed = 0;
03717 ClrBit(v->flags, VRF_LEAVING_STATION);
03718 ReverseTrainDirection(v);
03719 return true;
03720 } else if (HasBit(v->flags, VRF_LEAVING_STATION)) {
03721
03722
03723
03724 DiagDirection dir = TrainExitDir(v->direction, v->track);
03725 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
03726
03727 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
03728 TryPathReserve(v, true, true);
03729 }
03730 ClrBit(v->flags, VRF_LEAVING_STATION);
03731 }
03732
03733 v->HandleLoading(mode);
03734
03735 if (v->current_order.IsType(OT_LOADING)) return true;
03736
03737 if (CheckTrainStayInDepot(v)) return true;
03738
03739 if (!mode) v->ShowVisualEffect();
03740
03741
03742 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03743 CheckNextTrainTile(v);
03744 }
03745
03746
03747 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03748 ++v->wait_counter;
03749
03750
03751 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.reverse_at_signals;
03752
03753 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == TFP_NONE) return true;
03754 if (!TryPathReserve(v)) {
03755
03756 if (turn_around) ReverseTrainDirection(v);
03757
03758 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03759
03760 if (_settings_client.gui.lost_vehicle_warn && v->owner == _local_company) {
03761 SetDParam(0, v->index);
03762 AddVehicleNewsItem(
03763 STR_NEWS_TRAIN_IS_STUCK,
03764 NS_ADVICE,
03765 v->index
03766 );
03767 }
03768 v->wait_counter = 0;
03769 }
03770
03771 if (v->force_proceed == TFP_NONE) return true;
03772 ClrBit(v->flags, VRF_TRAIN_STUCK);
03773 v->wait_counter = 0;
03774 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03775 }
03776 }
03777
03778 if (v->current_order.IsType(OT_LEAVESTATION)) {
03779 v->current_order.Free();
03780 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03781 return true;
03782 }
03783
03784 int j = v->UpdateSpeed();
03785
03786
03787 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
03788
03789 v->force_proceed = TFP_NONE;
03790 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03791 }
03792
03793 int adv_spd = v->GetAdvanceDistance();
03794 if (j < adv_spd) {
03795
03796 if (v->cur_speed == 0) v->SetLastSpeed();
03797 } else {
03798 TrainCheckIfLineEnds(v);
03799
03800 for (;;) {
03801 j -= adv_spd;
03802 TrainController(v, NULL);
03803
03804 if (CheckTrainCollision(v)) break;
03805
03806 adv_spd = v->GetAdvanceDistance();
03807
03808
03809 if (j < adv_spd || v->cur_speed == 0) break;
03810
03811 OrderType order_type = v->current_order.GetType();
03812
03813 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
03814 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
03815 IsTileType(v->tile, MP_STATION) &&
03816 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
03817 ProcessOrders(v);
03818 }
03819 }
03820 v->SetLastSpeed();
03821 }
03822
03823 for (Train *u = v; u != NULL; u = u->Next()) {
03824 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
03825
03826 u->UpdateViewport(false, false);
03827 }
03828
03829 if (v->progress == 0) v->progress = j;
03830
03831 return true;
03832 }
03833
03838 Money Train::GetRunningCost() const
03839 {
03840 Money cost = 0;
03841 const Train *v = this;
03842
03843 do {
03844 const Engine *e = v->GetEngine();
03845 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
03846
03847 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
03848 if (cost_factor == 0) continue;
03849
03850
03851 if (v->IsMultiheaded()) cost_factor /= 2;
03852
03853 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->GetGRF());
03854 } while ((v = v->GetNextVehicle()) != NULL);
03855
03856 return cost;
03857 }
03858
03863 bool Train::Tick()
03864 {
03865 this->tick_counter++;
03866
03867 if (this->IsFrontEngine()) {
03868 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
03869
03870 this->current_order_time++;
03871
03872 if (!TrainLocoHandler(this, false)) return false;
03873
03874 return TrainLocoHandler(this, true);
03875 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
03876
03877 if (++this->crash_anim_pos >= 4400) {
03878 delete this;
03879 return false;
03880 }
03881 }
03882
03883 return true;
03884 }
03885
03890 static void CheckIfTrainNeedsService(Train *v)
03891 {
03892 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
03893 if (v->IsInDepot()) {
03894 VehicleServiceInDepot(v);
03895 return;
03896 }
03897
03898 uint max_penalty;
03899 switch (_settings_game.pf.pathfinder_for_trains) {
03900 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
03901 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
03902 default: NOT_REACHED();
03903 }
03904
03905 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
03906
03907 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
03908 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
03909
03910
03911
03912 v->current_order.MakeDummy();
03913 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03914 }
03915 return;
03916 }
03917
03918 DepotID depot = GetDepotIndex(tfdd.tile);
03919
03920 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
03921 v->current_order.GetDestination() != depot &&
03922 !Chance16(3, 16)) {
03923 return;
03924 }
03925
03926 SetBit(v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
03927 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
03928 v->dest_tile = tfdd.tile;
03929 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03930 }
03931
03933 void Train::OnNewDay()
03934 {
03935 AgeVehicle(this);
03936
03937 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
03938
03939 if (this->IsFrontEngine()) {
03940 CheckVehicleBreakdown(this);
03941
03942 CheckIfTrainNeedsService(this);
03943
03944 CheckOrders(this);
03945
03946
03947 if (this->current_order.IsType(OT_GOTO_STATION)) {
03948 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
03949 if (tile != INVALID_TILE) this->dest_tile = tile;
03950 }
03951
03952 if (this->running_ticks != 0) {
03953
03954 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
03955
03956 this->profit_this_year -= cost.GetCost();
03957 this->running_ticks = 0;
03958
03959 SubtractMoneyFromCompanyFract(this->owner, cost);
03960
03961 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
03962 SetWindowClassesDirty(WC_TRAINS_LIST);
03963 }
03964 }
03965 }
03966
03971 Trackdir Train::GetVehicleTrackdir() const
03972 {
03973 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
03974
03975 if (this->track == TRACK_BIT_DEPOT) {
03976
03977 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
03978 }
03979
03980 if (this->track == TRACK_BIT_WORMHOLE) {
03981
03982 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
03983 }
03984
03985 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
03986 }