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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
00689 v->engine_type = e->index;
00690 v->gcache.first_engine = INVALID_ENGINE;
00691
00692 v->reliability = e->reliability;
00693 v->reliability_spd_dec = e->reliability_spd_dec;
00694 v->max_age = e->GetLifeLengthInDays();
00695
00696 v->railtype = rvi->railtype;
00697 _new_vehicle_id = v->index;
00698
00699 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00700 v->date_of_last_service = _date;
00701 v->build_year = _cur_year;
00702 v->cur_image = SPR_IMG_QUERY;
00703 v->random_bits = VehicleRandomBits();
00704
00705 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00706
00707 v->group_id = DEFAULT_GROUP;
00708
00709 v->SetFrontEngine();
00710 v->SetEngine();
00711
00712 VehicleUpdatePosition(v);
00713
00714 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00715 AddRearEngineToMultiheadedTrain(v);
00716 } else {
00717 AddArticulatedParts(v);
00718 }
00719
00720 v->ConsistChanged(false);
00721 UpdateTrainGroupID(v);
00722
00723 if (!HasBit(data, 0) && !(flags & DC_AUTOREPLACE)) {
00724 NormalizeTrainVehInDepot(v);
00725 }
00726
00727 CheckConsistencyOfArticulatedVehicle(v);
00728 }
00729
00730 return CommandCost();
00731 }
00732
00733 static Train *FindGoodVehiclePos(const Train *src)
00734 {
00735 EngineID eng = src->engine_type;
00736 TileIndex tile = src->tile;
00737
00738 Train *dst;
00739 FOR_ALL_TRAINS(dst) {
00740 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00741
00742 Train *t = dst;
00743 while (t->engine_type == eng) {
00744 t = t->Next();
00745 if (t == NULL) return dst;
00746 }
00747 }
00748 }
00749
00750 return NULL;
00751 }
00752
00754 typedef SmallVector<Train *, 16> TrainList;
00755
00761 static void MakeTrainBackup(TrainList &list, Train *t)
00762 {
00763 for (; t != NULL; t = t->Next()) *list.Append() = t;
00764 }
00765
00770 static void RestoreTrainBackup(TrainList &list)
00771 {
00772
00773 if (list.Length() == 0) return;
00774
00775 Train *prev = NULL;
00776
00777 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
00778 Train *t = *iter;
00779 if (prev != NULL) {
00780 prev->SetNext(t);
00781 } else if (t->Previous() != NULL) {
00782
00783 t->Previous()->SetNext(NULL);
00784 }
00785 prev = t;
00786 }
00787 }
00788
00794 static void RemoveFromConsist(Train *part, bool chain = false)
00795 {
00796 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
00797
00798
00799
00800 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
00801
00802
00803 tail->SetNext(NULL);
00804 }
00805
00811 static void InsertInConsist(Train *dst, Train *chain)
00812 {
00813
00814 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
00815
00816 chain->Last()->SetNext(dst->Next());
00817 dst->SetNext(chain);
00818 }
00819
00825 static void NormaliseDualHeads(Train *t)
00826 {
00827 for (; t != NULL; t = t->GetNextVehicle()) {
00828 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
00829
00830
00831 Train *u;
00832 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
00833
00834 if (u == t->other_multiheaded_part) continue;
00835
00836
00837 RemoveFromConsist(t->other_multiheaded_part);
00838
00839 InsertInConsist(u, t->other_multiheaded_part);
00840 }
00841 }
00842
00847 static void NormaliseSubtypes(Train *chain)
00848 {
00849
00850 if (chain == NULL) return;
00851
00852
00853 assert(chain->Previous() == NULL);
00854
00855
00856 if (chain->IsWagon()) {
00857 chain->SetFreeWagon();
00858 } else {
00859 assert(chain->IsEngine());
00860 chain->SetFrontEngine();
00861 }
00862
00863
00864 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
00865 t->ClearFreeWagon();
00866 t->ClearFrontEngine();
00867 }
00868 }
00869
00879 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
00880 {
00881
00882
00883
00884 if ((src != NULL && src->IsEngine() ? 1 : 0) +
00885 (dst != NULL && dst->IsEngine() ? 1 : 0) -
00886 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
00887 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
00888 return CommandCost();
00889 }
00890
00891
00892
00893 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
00894
00895 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00896 }
00897
00903 static CommandCost CheckTrainAttachment(Train *t)
00904 {
00905
00906 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
00907
00908
00909
00910 int allowed_len = _settings_game.vehicle.max_train_length * TILE_SIZE - t->gcache.cached_veh_length;
00911
00912 Train *head = t;
00913 Train *prev = t;
00914
00915
00916 t = t->Next();
00917 prev->SetNext(NULL);
00918
00919
00920 head->InvalidateNewGRFCache();
00921
00922 while (t != NULL) {
00923 allowed_len -= t->gcache.cached_veh_length;
00924
00925 Train *next = t->Next();
00926
00927
00928
00929 t->SetNext(NULL);
00930
00931
00932 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
00933
00934 EngineID first_engine = t->gcache.first_engine;
00935 t->gcache.first_engine = INVALID_ENGINE;
00936
00937
00938
00939 t->InvalidateNewGRFCache();
00940
00941 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
00942
00943
00944 t->gcache.first_engine = first_engine;
00945
00946
00947 t->InvalidateNewGRFCache();
00948 head->InvalidateNewGRFCache();
00949
00950 if (callback != CALLBACK_FAILED) {
00951
00952 StringID error = STR_NULL;
00953
00954 if (head->GetGRF()->grf_version < 8) {
00955 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00956 if (callback < 0xFD) error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
00957 if (callback >= 0x100) ErrorUnknownCallbackResult(head->GetGRFID(), CBID_TRAIN_ALLOW_WAGON_ATTACH, callback);
00958 } else {
00959 if (callback < 0x400) {
00960 error = GetGRFStringID(head->GetGRFID(), 0xD000 + callback);
00961 } else {
00962 switch (callback) {
00963 case 0x400:
00964 case 0x401:
00965 break;
00966
00967 default:
00968 case 0x402:
00969 error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
00970 break;
00971 }
00972 }
00973 }
00974
00975 if (error != STR_NULL) return_cmd_error(error);
00976 }
00977 }
00978
00979
00980 prev->SetNext(t);
00981 prev = t;
00982 t = next;
00983 }
00984
00985 if (allowed_len < 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
00986 return CommandCost();
00987 }
00988
00999 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
01000 {
01001
01002 CommandCost ret = CheckTrainAttachment(src);
01003 if (ret.Failed()) return ret;
01004 ret = CheckTrainAttachment(dst);
01005 if (ret.Failed()) return ret;
01006
01007
01008 return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
01009 }
01010
01019 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01020 {
01021
01022 if (*src_head == *dst_head) {
01023
01024
01025 *dst_head = NULL;
01026 } else if (*dst_head == NULL) {
01027
01028
01029 *dst_head = src;
01030 }
01031
01032 if (src == *src_head) {
01033
01034
01035
01036
01037
01038
01039 *src_head = move_chain ? NULL :
01040 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01041 }
01042
01043
01044
01045
01046 RemoveFromConsist(src, move_chain);
01047 if (*dst_head != src) InsertInConsist(dst, src);
01048
01049
01050
01051 NormaliseDualHeads(*src_head);
01052 NormaliseDualHeads(*dst_head);
01053 }
01054
01060 static void NormaliseTrainHead(Train *head)
01061 {
01062
01063 if (head == NULL) return;
01064
01065
01066 head->ConsistChanged(false);
01067 UpdateTrainGroupID(head);
01068
01069
01070 if (!head->IsFrontEngine()) return;
01071
01072
01073 InvalidateWindowData(WC_VEHICLE_REFIT, head->index);
01074 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, WID_VV_REFIT);
01075
01076
01077 if (head->unitnumber != 0) return;
01078 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01079 }
01080
01093 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01094 {
01095 VehicleID s = GB(p1, 0, 20);
01096 VehicleID d = GB(p2, 0, 20);
01097 bool move_chain = HasBit(p1, 20);
01098
01099 Train *src = Train::GetIfValid(s);
01100 if (src == NULL) return CMD_ERROR;
01101
01102 CommandCost ret = CheckOwnership(src->owner);
01103 if (ret.Failed()) return ret;
01104
01105
01106 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01107
01108
01109 Train *dst;
01110 if (d == INVALID_VEHICLE) {
01111 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01112 } else {
01113 dst = Train::GetIfValid(d);
01114 if (dst == NULL) return CMD_ERROR;
01115
01116 CommandCost ret = CheckOwnership(dst->owner);
01117 if (ret.Failed()) return ret;
01118
01119
01120 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01121 }
01122
01123
01124 src = src->GetFirstEnginePart();
01125 if (dst != NULL) {
01126 dst = dst->GetFirstEnginePart();
01127 }
01128
01129
01130 if (src == dst) return CommandCost();
01131
01132
01133 Train *src_head = src->First();
01134 Train *dst_head;
01135 if (dst != NULL) {
01136 dst_head = dst->First();
01137 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01138
01139 dst = dst->GetLastEnginePart();
01140 } else {
01141 dst_head = NULL;
01142 }
01143
01144 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01145
01146
01147 if (move_chain && src_head == dst_head) return CommandCost();
01148
01149
01150 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01151
01152
01153 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01154
01155
01156 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01157
01158
01159
01160 TrainList original_src;
01161 TrainList original_dst;
01162
01163 MakeTrainBackup(original_src, src_head);
01164 MakeTrainBackup(original_dst, dst_head);
01165
01166
01167
01168
01169 Train *original_src_head = src_head;
01170 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01171
01172
01173 bool original_src_head_front_engine = original_src_head != NULL && original_src_head->IsFrontEngine();
01174 bool original_dst_head_front_engine = original_dst_head != NULL && original_dst_head->IsFrontEngine();
01175
01176
01177 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01178
01179 if ((flags & DC_AUTOREPLACE) == 0) {
01180
01181
01182
01183 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
01184 if (ret.Failed()) {
01185
01186 RestoreTrainBackup(original_src);
01187 RestoreTrainBackup(original_dst);
01188 return ret;
01189 }
01190 }
01191
01192
01193 if (flags & DC_EXEC) {
01194
01195 if (original_src_head_front_engine) GroupStatistics::CountVehicle(original_src_head, -1);
01196 if (original_dst_head_front_engine) GroupStatistics::CountVehicle(original_dst_head, -1);
01197
01198
01199 NormaliseSubtypes(src_head);
01200 NormaliseSubtypes(dst_head);
01201
01202
01203
01204
01205
01206
01207
01208
01209
01210
01211
01212
01213
01214
01215
01216
01217
01218
01219
01220
01221
01222 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01223
01224 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01225 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01226 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01227 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01228 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01229 SetWindowDirty(WC_COMPANY, _current_company);
01230
01231
01232
01233 DeleteVehicleOrders(src);
01234 RemoveVehicleFromGroup(src);
01235 src->unitnumber = 0;
01236 }
01237
01238
01239
01240 if (original_src_head != src && dst_head == src) {
01241 SetTrainGroupID(src, DEFAULT_GROUP);
01242 SetWindowDirty(WC_COMPANY, _current_company);
01243 }
01244
01245
01246 if (src_head != NULL && src_head->IsFrontEngine()) GroupStatistics::CountVehicle(src_head, 1);
01247 if (dst_head != NULL && dst_head->IsFrontEngine()) GroupStatistics::CountVehicle(dst_head, 1);
01248
01249
01250 NormaliseTrainHead(src_head);
01251 NormaliseTrainHead(dst_head);
01252
01253 if ((flags & DC_NO_CARGO_CAP_CHECK) == 0) {
01254 CheckCargoCapacity(src_head);
01255 CheckCargoCapacity(dst_head);
01256 }
01257
01258
01259 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01260 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01261 } else {
01262
01263 RestoreTrainBackup(original_src);
01264 RestoreTrainBackup(original_dst);
01265 }
01266
01267 return CommandCost();
01268 }
01269
01281 CommandCost CmdSellRailWagon(DoCommandFlag flags, Vehicle *t, uint16 data, uint32 user)
01282 {
01283
01284 Window *w = NULL;
01285
01286
01287 bool sell_chain = HasBit(data, 0);
01288
01289 Train *v = Train::From(t)->GetFirstEnginePart();
01290 Train *first = v->First();
01291
01292 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01293
01294
01295
01296 TrainList original;
01297 MakeTrainBackup(original, first);
01298
01299
01300 Train *new_head = first;
01301 Train *sell_head = NULL;
01302
01303
01304 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01305
01306
01307 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
01308 if (ret.Failed()) {
01309
01310 RestoreTrainBackup(original);
01311 return ret;
01312 }
01313
01314 CommandCost cost(EXPENSES_NEW_VEHICLES);
01315 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01316
01317 if (first->orders.list == NULL && !OrderList::CanAllocateItem()) {
01318 return_cmd_error(STR_ERROR_NO_MORE_SPACE_FOR_ORDERS);
01319 }
01320
01321
01322 if (flags & DC_EXEC) {
01323
01324 NormaliseSubtypes(new_head);
01325
01326 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01327
01328
01329 new_head->orders.list = first->orders.list;
01330 new_head->AddToShared(first);
01331 DeleteVehicleOrders(first);
01332
01333
01334 new_head->CopyVehicleConfigAndStatistics(first);
01335 GroupStatistics::CountVehicle(new_head, 1);
01336
01337
01338 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01339 } else if (v->IsPrimaryVehicle() && data & (MAKE_ORDER_BACKUP_FLAG >> 20)) {
01340 OrderBackup::Backup(v, user);
01341 }
01342
01343
01344 NormaliseTrainHead(new_head);
01345
01346
01347 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01348 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01349
01350
01351 delete sell_head;
01352 } else {
01353
01354 RestoreTrainBackup(original);
01355 }
01356
01357 return cost;
01358 }
01359
01360 void Train::UpdateDeltaXY(Direction direction)
01361 {
01362
01363 this->x_offs = -1;
01364 this->y_offs = -1;
01365 this->x_extent = 3;
01366 this->y_extent = 3;
01367 this->z_extent = 6;
01368 this->x_bb_offs = 0;
01369 this->y_bb_offs = 0;
01370
01371 if (!IsDiagonalDirection(direction)) {
01372 static const int _sign_table[] =
01373 {
01374
01375 -1, -1,
01376 -1, 1,
01377 1, 1,
01378 1, -1,
01379 };
01380
01381 int half_shorten = (VEHICLE_LENGTH - this->gcache.cached_veh_length) / 2;
01382
01383
01384 this->x_offs -= half_shorten * _sign_table[direction];
01385 this->y_offs -= half_shorten * _sign_table[direction + 1];
01386 this->x_extent += this->x_bb_offs = half_shorten * _sign_table[direction];
01387 this->y_extent += this->y_bb_offs = half_shorten * _sign_table[direction + 1];
01388 } else {
01389 switch (direction) {
01390
01391
01392 case DIR_NE:
01393 this->x_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01394 this->x_extent = this->gcache.cached_veh_length - 1;
01395 this->x_bb_offs = -1;
01396 break;
01397
01398 case DIR_NW:
01399 this->y_offs = 1 - (this->gcache.cached_veh_length + 1) / 2;
01400 this->y_extent = this->gcache.cached_veh_length - 1;
01401 this->y_bb_offs = -1;
01402 break;
01403
01404
01405
01406 case DIR_SW:
01407 this->x_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01408 this->x_extent = VEHICLE_LENGTH - 1;
01409 this->x_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01410 break;
01411
01412 case DIR_SE:
01413 this->y_offs = 1 + (this->gcache.cached_veh_length + 1) / 2 - VEHICLE_LENGTH;
01414 this->y_extent = VEHICLE_LENGTH - 1;
01415 this->y_bb_offs = VEHICLE_LENGTH - this->gcache.cached_veh_length - 1;
01416 break;
01417
01418 default:
01419 NOT_REACHED();
01420 }
01421 }
01422 }
01423
01428 static void MarkTrainAsStuck(Train *v)
01429 {
01430 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01431
01432 SetBit(v->flags, VRF_TRAIN_STUCK);
01433
01434 v->wait_counter = 0;
01435
01436
01437 v->cur_speed = 0;
01438 v->subspeed = 0;
01439 v->SetLastSpeed();
01440
01441 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01442 }
01443 }
01444
01452 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01453 {
01454 uint16 flag1 = *swap_flag1;
01455 uint16 flag2 = *swap_flag2;
01456
01457
01458 ClrBit(*swap_flag1, GVF_GOINGUP_BIT);
01459 ClrBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01460 ClrBit(*swap_flag2, GVF_GOINGUP_BIT);
01461 ClrBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01462
01463
01464 if (HasBit(flag1, GVF_GOINGUP_BIT)) {
01465 SetBit(*swap_flag2, GVF_GOINGDOWN_BIT);
01466 } else if (HasBit(flag1, GVF_GOINGDOWN_BIT)) {
01467 SetBit(*swap_flag2, GVF_GOINGUP_BIT);
01468 }
01469 if (HasBit(flag2, GVF_GOINGUP_BIT)) {
01470 SetBit(*swap_flag1, GVF_GOINGDOWN_BIT);
01471 } else if (HasBit(flag2, GVF_GOINGDOWN_BIT)) {
01472 SetBit(*swap_flag1, GVF_GOINGUP_BIT);
01473 }
01474 }
01475
01480 static void UpdateStatusAfterSwap(Train *v)
01481 {
01482
01483 if (v->track != TRACK_BIT_DEPOT) v->direction = ReverseDir(v->direction);
01484
01485
01486 if (v->track != TRACK_BIT_WORMHOLE) {
01487 VehicleEnterTile(v, v->tile, v->x_pos, v->y_pos);
01488 } else {
01489
01490
01491
01492
01493 TileIndex vt = TileVirtXY(v->x_pos, v->y_pos);
01494 if (IsTileType(vt, MP_TUNNELBRIDGE)) {
01495 VehicleEnterTile(v, vt, v->x_pos, v->y_pos);
01496 if (v->track != TRACK_BIT_WORMHOLE && IsBridgeTile(v->tile)) {
01497
01498
01499
01500 VehicleUpdatePosition(v);
01501 v->UpdateInclination(true, true);
01502 return;
01503 }
01504 }
01505 }
01506
01507 VehicleUpdatePosition(v);
01508 v->UpdateViewport(true, true);
01509 }
01510
01517 void ReverseTrainSwapVeh(Train *v, int l, int r)
01518 {
01519 Train *a, *b;
01520
01521
01522 for (a = v; l != 0; l--) a = a->Next();
01523 for (b = v; r != 0; r--) b = b->Next();
01524
01525 if (a != b) {
01526
01527 {
01528 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus & VS_HIDDEN);
01529 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus & VS_HIDDEN);
01530 a->vehstatus = tmp;
01531 }
01532
01533 Swap(a->track, b->track);
01534 Swap(a->direction, b->direction);
01535 Swap(a->x_pos, b->x_pos);
01536 Swap(a->y_pos, b->y_pos);
01537 Swap(a->tile, b->tile);
01538 Swap(a->z_pos, b->z_pos);
01539
01540 SwapTrainFlags(&a->gv_flags, &b->gv_flags);
01541
01542 UpdateStatusAfterSwap(a);
01543 UpdateStatusAfterSwap(b);
01544 } else {
01545
01546
01547
01548 SwapTrainFlags(&a->gv_flags, &a->gv_flags);
01549 UpdateStatusAfterSwap(a);
01550 }
01551 }
01552
01553
01559 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01560 {
01561 return (v->type == VEH_TRAIN) ? v : NULL;
01562 }
01563
01564
01571 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01572 {
01573 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01574
01575 Train *t = Train::From(v);
01576 if (!t->IsFrontEngine()) return NULL;
01577
01578 TileIndex tile = *(TileIndex *)data;
01579
01580 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01581
01582 return t;
01583 }
01584
01585
01592 static bool TrainApproachingCrossing(TileIndex tile)
01593 {
01594 assert(IsLevelCrossingTile(tile));
01595
01596 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01597 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01598
01599 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01600
01601 dir = ReverseDiagDir(dir);
01602 tile_from = tile + TileOffsByDiagDir(dir);
01603
01604 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01605 }
01606
01607
01614 void UpdateLevelCrossing(TileIndex tile, bool sound)
01615 {
01616 assert(IsLevelCrossingTile(tile));
01617
01618
01619 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01620
01621 if (new_state != IsCrossingBarred(tile)) {
01622 if (new_state && sound) {
01623 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01624 }
01625 SetCrossingBarred(tile, new_state);
01626 MarkTileDirtyByTile(tile);
01627 }
01628 }
01629
01630
01636 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01637 {
01638 if (!IsCrossingBarred(tile)) {
01639 BarCrossing(tile);
01640 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01641 MarkTileDirtyByTile(tile);
01642 }
01643 }
01644
01645
01651 static void AdvanceWagonsBeforeSwap(Train *v)
01652 {
01653 Train *base = v;
01654 Train *first = base;
01655 Train *last = v->Last();
01656 uint length = CountVehiclesInChain(v);
01657
01658 while (length > 2) {
01659 last = last->Previous();
01660 first = first->Next();
01661
01662 int differential = base->CalcNextVehicleOffset() - last->CalcNextVehicleOffset();
01663
01664
01665
01666 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01667
01668 base = first;
01669 length -= 2;
01670 }
01671 }
01672
01673
01679 static void AdvanceWagonsAfterSwap(Train *v)
01680 {
01681
01682 Train *dep = v;
01683 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01684 dep = dep->Next();
01685 }
01686
01687 Train *leave = dep->Next();
01688
01689 if (leave != NULL) {
01690
01691 int d = TicksToLeaveDepot(dep);
01692
01693 if (d <= 0) {
01694 leave->vehstatus &= ~VS_HIDDEN;
01695 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01696 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01697 }
01698 } else {
01699 dep = NULL;
01700 }
01701
01702 Train *base = v;
01703 Train *first = base;
01704 Train *last = v->Last();
01705 uint length = CountVehiclesInChain(v);
01706
01707
01708
01709 bool nomove = (dep == NULL);
01710
01711 while (length > 2) {
01712
01713
01714 if (base == dep) break;
01715
01716
01717 if (last == dep) nomove = true;
01718
01719 last = last->Previous();
01720 first = first->Next();
01721
01722 int differential = last->CalcNextVehicleOffset() - base->CalcNextVehicleOffset();
01723
01724
01725 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01726
01727 base = first;
01728 length -= 2;
01729 }
01730 }
01731
01736 void ReverseTrainDirection(Train *v)
01737 {
01738 if (IsRailDepotTile(v->tile)) {
01739 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01740 }
01741
01742
01743 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01744
01745
01746 TileIndex crossing = TrainApproachingCrossingTile(v);
01747
01748
01749 int r = CountVehiclesInChain(v) - 1;
01750
01751 AdvanceWagonsBeforeSwap(v);
01752
01753
01754 int l = 0;
01755 do {
01756 ReverseTrainSwapVeh(v, l++, r--);
01757 } while (l <= r);
01758
01759 AdvanceWagonsAfterSwap(v);
01760
01761 if (IsRailDepotTile(v->tile)) {
01762 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01763 }
01764
01765 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01766
01767 ClrBit(v->flags, VRF_REVERSING);
01768
01769
01770 v->ConsistChanged(true);
01771
01772
01773 for (Train *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01774
01775
01776 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01777
01778
01779 crossing = TrainApproachingCrossingTile(v);
01780 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01781
01782
01783 if (v->track == TRACK_BIT_DEPOT) {
01784
01785 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
01786 ClrBit(v->flags, VRF_TRAIN_STUCK);
01787 return;
01788 }
01789
01790
01791
01792 DiagDirection dir = TrainExitDir(v->direction, v->track);
01793 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01794
01795 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01796
01797
01798 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01799 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01800 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01801
01802
01803 if (IsRailDepotTile(v->tile) && TrackdirToExitdir(v->GetVehicleTrackdir()) == GetRailDepotDirection(v->tile)) first_tile_okay = false;
01804
01805 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01806 if (TryPathReserve(v, false, first_tile_okay)) {
01807
01808 CheckNextTrainTile(v);
01809 } else if (v->current_order.GetType() != OT_LOADING) {
01810
01811 MarkTrainAsStuck(v);
01812 }
01813 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01814
01815 ClrBit(v->flags, VRF_TRAIN_STUCK);
01816 v->wait_counter = 0;
01817 }
01818 }
01819
01829 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01830 {
01831 Train *v = Train::GetIfValid(p1);
01832 if (v == NULL) return CMD_ERROR;
01833
01834 CommandCost ret = CheckOwnership(v->owner);
01835 if (ret.Failed()) return ret;
01836
01837 if (p2 != 0) {
01838
01839
01840 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01841 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01842 }
01843 if (!HasBit(EngInfo(v->engine_type)->misc_flags, EF_RAIL_FLIPS)) return CMD_ERROR;
01844
01845 Train *front = v->First();
01846
01847 if (!front->IsStoppedInDepot()) {
01848 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01849 }
01850
01851 if (flags & DC_EXEC) {
01852 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01853
01854 front->ConsistChanged(false);
01855 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
01856 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
01857 SetWindowDirty(WC_VEHICLE_VIEW, front->index);
01858 SetWindowClassesDirty(WC_TRAINS_LIST);
01859 }
01860 } else {
01861
01862 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
01863
01864 if (flags & DC_EXEC) {
01865
01866 if (v->current_order.IsType(OT_LOADING)) {
01867 const Vehicle *last = v;
01868 while (last->Next() != NULL) last = last->Next();
01869
01870
01871 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01872 v->LeaveStation();
01873 }
01874 }
01875
01876
01877 v->force_proceed = TFP_NONE;
01878 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
01879
01880 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
01881 ToggleBit(v->flags, VRF_REVERSING);
01882 } else {
01883 v->cur_speed = 0;
01884 v->SetLastSpeed();
01885 HideFillingPercent(&v->fill_percent_te_id);
01886 ReverseTrainDirection(v);
01887 }
01888 }
01889 }
01890 return CommandCost();
01891 }
01892
01902 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01903 {
01904 Train *t = Train::GetIfValid(p1);
01905 if (t == NULL) return CMD_ERROR;
01906
01907 if (!t->IsPrimaryVehicle()) return CMD_ERROR;
01908
01909 CommandCost ret = CheckOwnership(t->owner);
01910 if (ret.Failed()) return ret;
01911
01912
01913 if (flags & DC_EXEC) {
01914
01915
01916
01917
01918
01919 t->force_proceed = t->force_proceed == TFP_SIGNAL ? TFP_NONE : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsChainInDepot() ? TFP_STUCK : TFP_SIGNAL;
01920 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
01921 }
01922
01923 return CommandCost();
01924 }
01925
01933 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
01934 {
01935 assert(!(v->vehstatus & VS_CRASHED));
01936
01937 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
01938
01939 PBSTileInfo origin = FollowTrainReservation(v);
01940 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
01941
01942 switch (_settings_game.pf.pathfinder_for_trains) {
01943 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
01944 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
01945
01946 default: NOT_REACHED();
01947 }
01948 }
01949
01957 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
01958 {
01959 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
01960 if (tfdd.best_length == UINT_MAX) return false;
01961
01962 if (location != NULL) *location = tfdd.tile;
01963 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
01964 if (reverse != NULL) *reverse = tfdd.reverse;
01965
01966 return true;
01967 }
01968
01970 void Train::PlayLeaveStationSound() const
01971 {
01972 static const SoundFx sfx[] = {
01973 SND_04_TRAIN,
01974 SND_0A_TRAIN_HORN,
01975 SND_0A_TRAIN_HORN,
01976 SND_47_MAGLEV_2,
01977 SND_41_MAGLEV
01978 };
01979
01980 if (PlayVehicleSound(this, VSE_START)) return;
01981
01982 EngineID engtype = this->engine_type;
01983 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
01984 }
01985
01990 static void CheckNextTrainTile(Train *v)
01991 {
01992
01993 if (_settings_game.pf.path_backoff_interval == 255) return;
01994
01995
01996 if (v->track == TRACK_BIT_DEPOT) return;
01997
01998 switch (v->current_order.GetType()) {
01999
02000 case OT_GOTO_DEPOT:
02001 if (v->tile == v->dest_tile) return;
02002 break;
02003
02004 case OT_GOTO_WAYPOINT:
02005
02006 if (IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
02007 break;
02008
02009 case OT_NOTHING:
02010 case OT_LEAVESTATION:
02011 case OT_LOADING:
02012
02013 if (v->GetNumOrders() > 0) return;
02014 break;
02015
02016 default:
02017 break;
02018 }
02019
02020 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02021
02022 Trackdir td = v->GetVehicleTrackdir();
02023
02024
02025 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02026 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02027 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02028
02029 CFollowTrackRail ft(v);
02030 if (!ft.Follow(v->tile, td)) return;
02031
02032 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02033
02034 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02035 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02036
02037 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02038 if (_settings_game.pf.forbid_90_deg) {
02039 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02040 }
02041 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02042 }
02043 }
02044 }
02045 }
02046
02052 static bool CheckTrainStayInDepot(Train *v)
02053 {
02054
02055 for (const Train *u = v; u != NULL; u = u->Next()) {
02056 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02057 }
02058
02059
02060 if (v->gcache.cached_power == 0) {
02061 v->vehstatus |= VS_STOPPED;
02062 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02063 return true;
02064 }
02065
02066 SigSegState seg_state;
02067
02068 if (v->force_proceed == TFP_NONE) {
02069
02070 if (++v->wait_counter < 37) {
02071 SetWindowClassesDirty(WC_TRAINS_LIST);
02072 return true;
02073 }
02074
02075 v->wait_counter = 0;
02076
02077 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02078 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02079
02080 SetWindowClassesDirty(WC_TRAINS_LIST);
02081 return true;
02082 }
02083 } else {
02084 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02085 }
02086
02087
02088 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02089
02090 if (HasDepotReservation(v->tile)) return true;
02091 SetDepotReservation(v->tile, true);
02092 VehicleEnterDepot(v);
02093 return true;
02094 }
02095
02096
02097 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == TFP_NONE) {
02098
02099 SetWindowClassesDirty(WC_TRAINS_LIST);
02100 MarkTrainAsStuck(v);
02101 return true;
02102 }
02103
02104 SetDepotReservation(v->tile, true);
02105 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02106
02107 VehicleServiceInDepot(v);
02108 SetWindowClassesDirty(WC_TRAINS_LIST);
02109 v->PlayLeaveStationSound();
02110
02111 v->track = TRACK_BIT_X;
02112 if (v->direction & 2) v->track = TRACK_BIT_Y;
02113
02114 v->vehstatus &= ~VS_HIDDEN;
02115 v->cur_speed = 0;
02116
02117 v->UpdateViewport(true, true);
02118 VehicleUpdatePosition(v);
02119 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02120 v->UpdateAcceleration();
02121 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02122
02123 return false;
02124 }
02125
02132 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02133 {
02134 DiagDirection dir = TrackdirToExitdir(track_dir);
02135
02136 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02137
02138 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02139 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02140
02141 if (TunnelBridgeIsFree(tile, end, v).Succeeded()) {
02142
02143 SetTunnelBridgeReservation(tile, false);
02144 SetTunnelBridgeReservation(end, false);
02145
02146 if (_settings_client.gui.show_track_reservation) {
02147 MarkTileDirtyByTile(tile);
02148 MarkTileDirtyByTile(end);
02149 }
02150 }
02151 }
02152 } else if (IsRailStationTile(tile)) {
02153 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02154
02155
02156 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02157 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02158 }
02159 } else {
02160
02161 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02162 }
02163 }
02164
02171 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02172 {
02173 assert(v->IsFrontEngine());
02174
02175 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02176 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02177 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02178 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02179
02180
02181 if (IsRailDepotTile(tile) && TrackdirToExitdir(td) != GetRailDepotDirection(tile)) return;
02182 if (v->track == TRACK_BIT_DEPOT) {
02183
02184 for (const Train *u = v; u != NULL; u = u->Next()) {
02185 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return;
02186 }
02187 }
02188
02189 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02190
02191 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02192 while (ft.Follow(tile, td)) {
02193 tile = ft.m_new_tile;
02194 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02195 td = RemoveFirstTrackdir(&bits);
02196 assert(bits == TRACKDIR_BIT_NONE);
02197
02198 if (!IsValidTrackdir(td)) break;
02199
02200 if (IsTileType(tile, MP_RAILWAY)) {
02201 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02202
02203 UnreserveRailTrack(tile, TrackdirToTrack(td));
02204 break;
02205 }
02206 if (HasPbsSignalOnTrackdir(tile, td)) {
02207 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02208
02209 break;
02210 } else {
02211
02212 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02213 MarkTileDirtyByTile(tile);
02214 }
02215 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02216 break;
02217 }
02218 }
02219
02220
02221 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);
02222
02223 free_tile = true;
02224 }
02225 }
02226
02227 static const byte _initial_tile_subcoord[6][4][3] = {
02228 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02229 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02230 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02231 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02232 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02233 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02234 };
02235
02248 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool &path_found, bool do_track_reservation, PBSTileInfo *dest)
02249 {
02250 switch (_settings_game.pf.pathfinder_for_trains) {
02251 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02252 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_found, do_track_reservation, dest);
02253
02254 default: NOT_REACHED();
02255 }
02256 }
02257
02263 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02264 {
02265 PBSTileInfo origin = FollowTrainReservation(v);
02266
02267 CFollowTrackRail ft(v);
02268
02269 TileIndex tile = origin.tile;
02270 Trackdir cur_td = origin.trackdir;
02271 while (ft.Follow(tile, cur_td)) {
02272 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02273
02274 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02275 }
02276
02277 if (_settings_game.pf.forbid_90_deg) {
02278 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02279 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02280 }
02281
02282
02283 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02284 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02285
02286
02287
02288
02289
02290
02291 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02292
02293
02294
02295 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02296
02297
02298 if (new_tracks != NULL) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02299 if (enterdir != NULL) *enterdir = ft.m_exitdir;
02300 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02301 }
02302
02303 tile = ft.m_new_tile;
02304 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02305
02306 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02307 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02308 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02309
02310 return PBSTileInfo(tile, cur_td, true);
02311 }
02312
02313 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02314 }
02315
02316 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02317
02318 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02319 }
02320
02321
02322 tile = origin.tile;
02323 cur_td = origin.trackdir;
02324 TileIndex stopped = ft.m_old_tile;
02325 Trackdir stopped_td = ft.m_old_td;
02326 while (tile != stopped || cur_td != stopped_td) {
02327 if (!ft.Follow(tile, cur_td)) break;
02328
02329 if (_settings_game.pf.forbid_90_deg) {
02330 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02331 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02332 }
02333 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02334
02335 tile = ft.m_new_tile;
02336 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02337
02338 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02339 }
02340
02341
02342 return PBSTileInfo();
02343 }
02344
02355 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02356 {
02357 switch (_settings_game.pf.pathfinder_for_trains) {
02358 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02359 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02360
02361 default: NOT_REACHED();
02362 }
02363 }
02364
02366 class VehicleOrderSaver {
02367 private:
02368 Train *v;
02369 Order old_order;
02370 TileIndex old_dest_tile;
02371 StationID old_last_station_visited;
02372 VehicleOrderID index;
02373 bool suppress_implicit_orders;
02374
02375 public:
02376 VehicleOrderSaver(Train *_v) :
02377 v(_v),
02378 old_order(_v->current_order),
02379 old_dest_tile(_v->dest_tile),
02380 old_last_station_visited(_v->last_station_visited),
02381 index(_v->cur_real_order_index),
02382 suppress_implicit_orders(HasBit(_v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS))
02383 {
02384 }
02385
02386 ~VehicleOrderSaver()
02387 {
02388 this->v->current_order = this->old_order;
02389 this->v->dest_tile = this->old_dest_tile;
02390 this->v->last_station_visited = this->old_last_station_visited;
02391 SB(this->v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS, 1, suppress_implicit_orders ? 1: 0);
02392 }
02393
02399 bool SwitchToNextOrder(bool skip_first)
02400 {
02401 if (this->v->GetNumOrders() == 0) return false;
02402
02403 if (skip_first) ++this->index;
02404
02405 int depth = 0;
02406
02407 do {
02408
02409 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02410
02411 Order *order = this->v->GetOrder(this->index);
02412 assert(order != NULL);
02413
02414 switch (order->GetType()) {
02415 case OT_GOTO_DEPOT:
02416
02417 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02418 case OT_GOTO_STATION:
02419 case OT_GOTO_WAYPOINT:
02420 this->v->current_order = *order;
02421 return UpdateOrderDest(this->v, order, 0, true);
02422 case OT_CONDITIONAL: {
02423 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02424 if (next != INVALID_VEH_ORDER_ID) {
02425 depth++;
02426 this->index = next;
02427
02428 continue;
02429 }
02430 break;
02431 }
02432 default:
02433 break;
02434 }
02435
02436
02437 ++this->index;
02438 depth++;
02439 } while (this->index != this->v->cur_real_order_index && depth < this->v->GetNumOrders());
02440
02441 return false;
02442 }
02443 };
02444
02445
02446 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02447 {
02448 Track best_track = INVALID_TRACK;
02449 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02450 bool changed_signal = false;
02451
02452 assert((tracks & ~TRACK_BIT_MASK) == 0);
02453
02454 if (got_reservation != NULL) *got_reservation = false;
02455
02456
02457 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02458
02459 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02460
02461
02462 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02463 Track track = FindFirstTrack(tracks);
02464
02465 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02466 do_track_reservation = true;
02467 changed_signal = true;
02468 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02469 } else if (!do_track_reservation) {
02470 return track;
02471 }
02472 best_track = track;
02473 }
02474
02475 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02476 DiagDirection dest_enterdir = enterdir;
02477 if (do_track_reservation) {
02478 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02479 if (res_dest.tile == INVALID_TILE) {
02480
02481 if (mark_stuck) MarkTrainAsStuck(v);
02482 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02483 return FindFirstTrack(tracks);
02484 }
02485 if (res_dest.okay) {
02486
02487 if (got_reservation != NULL) *got_reservation = true;
02488 if (changed_signal) MarkTileDirtyByTile(tile);
02489 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02490 return best_track;
02491 }
02492
02493
02494
02495
02496 CheckIfTrainNeedsService(v);
02497 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02498 }
02499
02500
02501 VehicleOrderSaver orders(v);
02502
02503
02504
02505
02506
02507
02508
02509 if (v->current_order.IsType(OT_LEAVESTATION)) {
02510 orders.SwitchToNextOrder(false);
02511 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02512 v->current_order.IsType(OT_GOTO_STATION) ?
02513 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02514 v->tile == v->dest_tile))) {
02515 orders.SwitchToNextOrder(true);
02516 }
02517
02518 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02519
02520 bool path_found = true;
02521 TileIndex new_tile = res_dest.tile;
02522
02523 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, path_found, do_track_reservation, &res_dest);
02524 if (new_tile == tile) best_track = next_track;
02525 v->HandlePathfindingResult(path_found);
02526 }
02527
02528
02529 if (!do_track_reservation) return best_track;
02530
02531
02532 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02533 if (mark_stuck) MarkTrainAsStuck(v);
02534 FreeTrainTrackReservation(v);
02535 return best_track;
02536 }
02537
02538
02539 if (res_dest.tile == INVALID_TILE) {
02540
02541 PBSTileInfo origin = FollowTrainReservation(v);
02542 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02543 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02544 best_track = FindFirstTrack(res);
02545 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02546 if (got_reservation != NULL) *got_reservation = true;
02547 if (changed_signal) MarkTileDirtyByTile(tile);
02548 } else {
02549 FreeTrainTrackReservation(v);
02550 if (mark_stuck) MarkTrainAsStuck(v);
02551 }
02552 return best_track;
02553 }
02554
02555 if (got_reservation != NULL) *got_reservation = true;
02556
02557
02558 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02559
02560 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02561 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02562 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02563 if (_settings_game.pf.forbid_90_deg) {
02564 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02565 }
02566
02567
02568 if (orders.SwitchToNextOrder(true)) {
02569 PBSTileInfo cur_dest;
02570 bool path_found;
02571 DoTrainPathfind(v, next_tile, exitdir, reachable, path_found, true, &cur_dest);
02572 if (cur_dest.tile != INVALID_TILE) {
02573 res_dest = cur_dest;
02574 if (res_dest.okay) continue;
02575
02576 FreeTrainTrackReservation(v);
02577 if (mark_stuck) MarkTrainAsStuck(v);
02578 if (got_reservation != NULL) *got_reservation = false;
02579 changed_signal = false;
02580 break;
02581 }
02582 }
02583
02584 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02585 FreeTrainTrackReservation(v);
02586 if (mark_stuck) MarkTrainAsStuck(v);
02587 if (got_reservation != NULL) *got_reservation = false;
02588 changed_signal = false;
02589 }
02590 break;
02591 }
02592
02593 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02594
02595 if (changed_signal) MarkTileDirtyByTile(tile);
02596
02597 return best_track;
02598 }
02599
02608 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02609 {
02610 assert(v->IsFrontEngine());
02611
02612
02613
02614
02615 if (v->track == TRACK_BIT_DEPOT) {
02616 if (HasDepotReservation(v->tile)) {
02617 if (mark_as_stuck) MarkTrainAsStuck(v);
02618 return false;
02619 } else {
02620
02621 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02622 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02623 }
02624 }
02625
02626 Vehicle *other_train = NULL;
02627 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02628
02629
02630
02631
02632
02633 if (other_train != NULL && other_train->index != v->index) {
02634 if (mark_as_stuck) MarkTrainAsStuck(v);
02635 return false;
02636 }
02637
02638 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02639
02640 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02641 ClrBit(v->flags, VRF_TRAIN_STUCK);
02642 return true;
02643 }
02644
02645
02646 if (v->track == TRACK_BIT_DEPOT) {
02647 SetDepotReservation(v->tile, true);
02648 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02649 }
02650
02651 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02652 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02653 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02654
02655 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02656
02657 bool res_made = false;
02658 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02659
02660 if (!res_made) {
02661
02662 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02663 return false;
02664 }
02665
02666 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02667 v->wait_counter = 0;
02668 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
02669 }
02670 ClrBit(v->flags, VRF_TRAIN_STUCK);
02671 return true;
02672 }
02673
02674
02675 static bool CheckReverseTrain(const Train *v)
02676 {
02677 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02678 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02679 !(v->direction & 1)) {
02680 return false;
02681 }
02682
02683 assert(v->track != TRACK_BIT_NONE);
02684
02685 switch (_settings_game.pf.pathfinder_for_trains) {
02686 case VPF_NPF: return NPFTrainCheckReverse(v);
02687 case VPF_YAPF: return YapfTrainCheckReverse(v);
02688
02689 default: NOT_REACHED();
02690 }
02691 }
02692
02698 TileIndex Train::GetOrderStationLocation(StationID station)
02699 {
02700 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02701
02702 const Station *st = Station::Get(station);
02703 if (!(st->facilities & FACIL_TRAIN)) {
02704
02705 this->IncrementRealOrderIndex();
02706 return 0;
02707 }
02708
02709 return st->xy;
02710 }
02711
02713 void Train::MarkDirty()
02714 {
02715 Train *v = this;
02716 do {
02717 v->UpdateViewport(false, false);
02718 } while ((v = v->Next()) != NULL);
02719
02720
02721 this->CargoChanged();
02722 this->UpdateAcceleration();
02723 }
02724
02732 int Train::UpdateSpeed()
02733 {
02734 switch (_settings_game.vehicle.train_acceleration_model) {
02735 default: NOT_REACHED();
02736 case AM_ORIGINAL:
02737 return this->DoUpdateSpeed(this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2), 0, min(this->gcache.cached_max_track_speed, this->current_order.max_speed));
02738
02739 case AM_REALISTIC:
02740 return this->DoUpdateSpeed(this->GetAcceleration(), this->GetAccelerationStatus() == AS_BRAKE ? 0 : 2, this->GetCurrentMaxSpeed());
02741 }
02742 }
02743
02749 static void TrainEnterStation(Train *v, StationID station)
02750 {
02751 v->last_station_visited = station;
02752
02753
02754 Station *st = Station::Get(station);
02755 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02756 st->had_vehicle_of_type |= HVOT_TRAIN;
02757 SetDParam(0, st->index);
02758 AddVehicleNewsItem(
02759 STR_NEWS_FIRST_TRAIN_ARRIVAL,
02760 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
02761 v->index,
02762 st->index
02763 );
02764 AI::NewEvent(v->owner, new ScriptEventStationFirstVehicle(st->index, v->index));
02765 Game::NewEvent(new ScriptEventStationFirstVehicle(st->index, v->index));
02766 }
02767
02768 v->force_proceed = TFP_NONE;
02769 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02770
02771 v->BeginLoading();
02772
02773 TriggerStationAnimation(st, v->tile, SAT_TRAIN_ARRIVES);
02774 }
02775
02776
02777 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
02778 {
02779 return IsTileOwner(tile, v->owner) &&
02780 (!v->IsFrontEngine() || HasBit(v->compatible_railtypes, GetRailType(tile)));
02781 }
02782
02784 struct AccelerationSlowdownParams {
02785 byte small_turn;
02786 byte large_turn;
02787 byte z_up;
02788 byte z_down;
02789 };
02790
02792 static const AccelerationSlowdownParams _accel_slowdown[] = {
02793
02794 {256 / 4, 256 / 2, 256 / 4, 2},
02795 {256 / 4, 256 / 2, 256 / 4, 2},
02796 {0, 256 / 2, 256 / 4, 2},
02797 };
02798
02804 static inline void AffectSpeedByZChange(Train *v, int old_z)
02805 {
02806 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
02807
02808 const AccelerationSlowdownParams *asp = &_accel_slowdown[GetRailTypeInfo(v->railtype)->acceleration_type];
02809
02810 if (old_z < v->z_pos) {
02811 v->cur_speed -= (v->cur_speed * asp->z_up >> 8);
02812 } else {
02813 uint16 spd = v->cur_speed + asp->z_down;
02814 if (spd <= v->gcache.cached_max_track_speed) v->cur_speed = spd;
02815 }
02816 }
02817
02818 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
02819 {
02820 if (IsTileType(tile, MP_RAILWAY) &&
02821 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
02822 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
02823 Trackdir trackdir = FindFirstTrackdir(tracks);
02824 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
02825
02826 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
02827 }
02828 }
02829 return false;
02830 }
02831
02833 void Train::ReserveTrackUnderConsist() const
02834 {
02835 for (const Train *u = this; u != NULL; u = u->Next()) {
02836 switch (u->track) {
02837 case TRACK_BIT_WORMHOLE:
02838 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
02839 break;
02840 case TRACK_BIT_DEPOT:
02841 break;
02842 default:
02843 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
02844 break;
02845 }
02846 }
02847 }
02848
02855 uint Train::Crash(bool flooded)
02856 {
02857 uint pass = 0;
02858 if (this->IsFrontEngine()) {
02859 pass += 2;
02860
02861
02862
02863 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
02864 for (const Train *v = this; v != NULL; v = v->Next()) {
02865 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
02866 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
02867
02868
02869 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
02870 }
02871 }
02872
02873
02874
02875 TileIndex crossing = TrainApproachingCrossingTile(this);
02876 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
02877
02878
02879 HideFillingPercent(&this->fill_percent_te_id);
02880 }
02881
02882 pass += this->GroundVehicleBase::Crash(flooded);
02883
02884 this->crash_anim_pos = flooded ? 4000 : 1;
02885 return pass;
02886 }
02887
02894 static uint TrainCrashed(Train *v)
02895 {
02896 uint num = 0;
02897
02898
02899 if (!(v->vehstatus & VS_CRASHED)) {
02900 num = v->Crash();
02901 AI::NewEvent(v->owner, new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02902 Game::NewEvent(new ScriptEventVehicleCrashed(v->index, v->tile, ScriptEventVehicleCrashed::CRASH_TRAIN));
02903 }
02904
02905
02906
02907 v->ReserveTrackUnderConsist();
02908
02909 return num;
02910 }
02911
02913 struct TrainCollideChecker {
02914 Train *v;
02915 uint num;
02916 };
02917
02924 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
02925 {
02926 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
02927
02928
02929 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
02930
02931
02932 if (v->owner != tcc->v->owner) return NULL;
02933
02934
02935 Train *coll = Train::From(v)->First();
02936
02937
02938 if (coll == tcc->v) return NULL;
02939
02940 int x_diff = v->x_pos - tcc->v->x_pos;
02941 int y_diff = v->y_pos - tcc->v->y_pos;
02942
02943
02944
02945
02946
02947 uint hash = (y_diff + 7) | (x_diff + 7);
02948 if (hash & ~15) return NULL;
02949
02950
02951 int min_diff = (Train::From(v)->gcache.cached_veh_length + 1) / 2 + (tcc->v->gcache.cached_veh_length + 1) / 2 - 1;
02952 if (x_diff * x_diff + y_diff * y_diff > min_diff * min_diff) return NULL;
02953
02954
02955 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
02956
02957
02958 tcc->num += TrainCrashed(tcc->v);
02959 tcc->num += TrainCrashed(coll);
02960
02961 return NULL;
02962 }
02963
02971 static bool CheckTrainCollision(Train *v)
02972 {
02973
02974 if (v->track == TRACK_BIT_DEPOT) return false;
02975
02976 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
02977
02978 TrainCollideChecker tcc;
02979 tcc.v = v;
02980 tcc.num = 0;
02981
02982
02983 if (v->track == TRACK_BIT_WORMHOLE) {
02984 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
02985 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
02986 } else {
02987 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
02988 }
02989
02990
02991 if (tcc.num == 0) return false;
02992
02993 SetDParam(0, tcc.num);
02994 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
02995 NS_ACCIDENT,
02996 v->index
02997 );
02998
02999 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03000 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03001 return true;
03002 }
03003
03004 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03005 {
03006 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03007
03008 Train *t = Train::From(v);
03009 DiagDirection exitdir = *(DiagDirection *)data;
03010
03011
03012 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03013
03014 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03015
03016 return t;
03017 }
03018
03026 bool TrainController(Train *v, Vehicle *nomove, bool reverse)
03027 {
03028 Train *first = v->First();
03029 Train *prev;
03030 bool direction_changed = false;
03031
03032
03033 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03034 DiagDirection enterdir = DIAGDIR_BEGIN;
03035 bool update_signals_crossing = false;
03036
03037 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03038 if (v->track != TRACK_BIT_WORMHOLE) {
03039
03040 if (gp.old_tile == gp.new_tile) {
03041
03042 if (v->track == TRACK_BIT_DEPOT) {
03043
03044 gp.x = v->x_pos;
03045 gp.y = v->y_pos;
03046 } else {
03047
03048
03049
03050 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v, reverse)) return false;
03051
03052 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03053 if (HasBit(r, VETS_CANNOT_ENTER)) {
03054 goto invalid_rail;
03055 }
03056 if (HasBit(r, VETS_ENTERED_STATION)) {
03057
03058 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03059 }
03060 }
03061 } else {
03062
03063
03064
03065 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03066 assert(IsValidDiagDirection(enterdir));
03067
03068
03069
03070 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03071 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03072
03073 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03074 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03075
03076 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03077 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03078
03079
03080 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03081 }
03082
03083 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03084
03085
03086
03087 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03088
03089 TrackBits chosen_track;
03090 if (prev == NULL) {
03091
03092
03093 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03094 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03095
03096 if (v->force_proceed != TFP_NONE && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03097
03098
03099
03100
03101 Trackdir dir = FindFirstTrackdir(trackdirbits);
03102 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03103 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03104
03105
03106 v->force_proceed = (v->force_proceed == TFP_SIGNAL) ? TFP_STUCK : TFP_NONE;
03107 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03108 }
03109 }
03110
03111
03112 if ((red_signals & chosen_track) && v->force_proceed == TFP_NONE) {
03113
03114 Trackdir i = FindFirstTrackdir(trackdirbits);
03115
03116
03117 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return false;
03118
03119 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03120 v->cur_speed = 0;
03121 v->subspeed = 0;
03122 v->progress = 255 - 100;
03123 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return false;
03124 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03125 v->cur_speed = 0;
03126 v->subspeed = 0;
03127 v->progress = 255 - 10;
03128 if (!_settings_game.pf.reverse_at_signals || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03129 DiagDirection exitdir = TrackdirToExitdir(i);
03130 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03131
03132 exitdir = ReverseDiagDir(exitdir);
03133
03134
03135 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return false;
03136 }
03137 }
03138
03139
03140
03141
03142
03143 if (!_settings_game.pf.reverse_at_signals && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03144 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03145 v->wait_counter = 0;
03146 return false;
03147 }
03148 goto reverse_train_direction;
03149 } else {
03150 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03151 }
03152 } else {
03153
03154 if (prev->tile == gp.new_tile) {
03155
03156 if (prev->track == TRACK_BIT_WORMHOLE) {
03157
03158
03159 assert(IsTunnel(prev->tile));
03160 chosen_track = bits;
03161 } else {
03162 chosen_track = prev->track;
03163 }
03164 } else {
03165
03166
03167
03168
03169
03170
03171
03172 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03173 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03174 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03175 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03176 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03177 };
03178 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03179 assert(IsValidDiagDirection(exitdir));
03180 chosen_track = _connecting_track[enterdir][exitdir];
03181 }
03182 chosen_track &= bits;
03183 }
03184
03185
03186 assert(
03187 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03188 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03189 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03190
03191
03192 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03193 gp.x = (gp.x & ~0xF) | b[0];
03194 gp.y = (gp.y & ~0xF) | b[1];
03195 Direction chosen_dir = (Direction)b[2];
03196
03197
03198 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03199 if (HasBit(r, VETS_CANNOT_ENTER)) {
03200 goto invalid_rail;
03201 }
03202
03203 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03204 Track track = FindFirstTrack(chosen_track);
03205 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03206 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03207 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03208 MarkTileDirtyByTile(gp.new_tile);
03209 }
03210
03211
03212 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03213
03214 v->tile = gp.new_tile;
03215
03216 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03217 v->First()->ConsistChanged(true);
03218 }
03219
03220 v->track = chosen_track;
03221 assert(v->track);
03222 }
03223
03224
03225
03226 update_signals_crossing = true;
03227
03228 if (chosen_dir != v->direction) {
03229 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03230 const AccelerationSlowdownParams *asp = &_accel_slowdown[GetRailTypeInfo(v->railtype)->acceleration_type];
03231 DirDiff diff = DirDifference(v->direction, chosen_dir);
03232 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? asp->small_turn : asp->large_turn) * v->cur_speed >> 8;
03233 }
03234 direction_changed = true;
03235 v->direction = chosen_dir;
03236 }
03237
03238 if (v->IsFrontEngine()) {
03239 v->wait_counter = 0;
03240
03241
03242 TileIndex crossing = TrainApproachingCrossingTile(v);
03243 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03244
03245
03246 CheckNextTrainTile(v);
03247 }
03248
03249 if (HasBit(r, VETS_ENTERED_STATION)) {
03250
03251 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03252 }
03253 }
03254 } else {
03255
03256
03257
03258 if (!(v->vehstatus & VS_HIDDEN)) {
03259 Train *first = v->First();
03260 first->cur_speed = min(first->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03261 }
03262
03263 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03264
03265 if (v->IsFrontEngine()) {
03266 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03267 CheckNextTrainTile(v);
03268 }
03269
03270
03271 if (gp.old_tile == gp.new_tile) {
03272 gp.old_tile = GetOtherTunnelBridgeEnd(gp.old_tile);
03273 }
03274 } else {
03275 v->x_pos = gp.x;
03276 v->y_pos = gp.y;
03277 VehicleUpdatePosition(v);
03278 if ((v->vehstatus & VS_HIDDEN) == 0) VehicleUpdateViewport(v, true);
03279 continue;
03280 }
03281 }
03282
03283
03284 v->UpdateDeltaXY(v->direction);
03285
03286 v->x_pos = gp.x;
03287 v->y_pos = gp.y;
03288 VehicleUpdatePosition(v);
03289
03290
03291 int old_z = v->UpdateInclination(gp.new_tile != gp.old_tile, false);
03292
03293 if (prev == NULL) {
03294
03295 AffectSpeedByZChange(v, old_z);
03296 }
03297
03298 if (update_signals_crossing) {
03299 if (v->IsFrontEngine()) {
03300 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03301
03302
03303
03304
03305
03306
03307
03308
03309 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03310 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03311 !TryPathReserve(v)) {
03312 MarkTrainAsStuck(v);
03313 }
03314 }
03315 }
03316
03317
03318
03319 if (v->Next() == NULL) {
03320 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03321 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03322 }
03323 }
03324
03325
03326 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03327 }
03328
03329 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03330
03331 return true;
03332
03333 invalid_rail:
03334
03335 if (prev != NULL) error("Disconnecting train");
03336
03337 reverse_train_direction:
03338 if (reverse) {
03339 v->wait_counter = 0;
03340 v->cur_speed = 0;
03341 v->subspeed = 0;
03342 ReverseTrainDirection(v);
03343 }
03344
03345 return false;
03346 }
03347
03354 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03355 {
03356 TrackBits *trackbits = (TrackBits *)data;
03357
03358 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03359 TrackBits train_tbits = Train::From(v)->track;
03360 if (train_tbits == TRACK_BIT_WORMHOLE) {
03361
03362 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03363 } else if (train_tbits != TRACK_BIT_DEPOT) {
03364 *trackbits |= train_tbits;
03365 }
03366 }
03367
03368 return NULL;
03369 }
03370
03378 static void DeleteLastWagon(Train *v)
03379 {
03380 Train *first = v->First();
03381
03382
03383
03384
03385 Train *u = v;
03386 for (; v->Next() != NULL; v = v->Next()) u = v;
03387 u->SetNext(NULL);
03388
03389 if (first != v) {
03390
03391 first->ConsistChanged(false);
03392
03393
03394 if (first->track == TRACK_BIT_DEPOT) {
03395 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03396 }
03397 }
03398
03399
03400 TrackBits trackbits = v->track;
03401 TileIndex tile = v->tile;
03402 Owner owner = v->owner;
03403
03404 delete v;
03405 v = NULL;
03406
03407 if (trackbits == TRACK_BIT_WORMHOLE) {
03408
03409 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03410 }
03411
03412 Track track = TrackBitsToTrack(trackbits);
03413 if (HasReservedTracks(tile, trackbits)) {
03414 UnreserveRailTrack(tile, track);
03415
03416
03417 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03418 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03419
03420
03421 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03422 Track t;
03423 FOR_EACH_SET_TRACK(t, remaining_trackbits) TryReserveRailTrack(tile, t);
03424 }
03425
03426
03427 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03428
03429
03430 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03431 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03432 } else {
03433 SetSignalsOnBothDir(tile, track, owner);
03434 }
03435 }
03436
03441 static void ChangeTrainDirRandomly(Train *v)
03442 {
03443 static const DirDiff delta[] = {
03444 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03445 };
03446
03447 do {
03448
03449 if (!(v->vehstatus & VS_HIDDEN)) {
03450 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03451 v->UpdateDeltaXY(v->direction);
03452 v->cur_image = v->GetImage(v->direction, EIT_ON_MAP);
03453
03454
03455
03456 if (v->track != TRACK_BIT_WORMHOLE) {
03457 VehicleUpdatePosition(v);
03458 v->UpdateInclination(false, false);
03459 }
03460 }
03461 } while ((v = v->Next()) != NULL);
03462 }
03463
03469 static bool HandleCrashedTrain(Train *v)
03470 {
03471 int state = ++v->crash_anim_pos;
03472
03473 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03474 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03475 }
03476
03477 uint32 r;
03478 if (state <= 200 && Chance16R(1, 7, r)) {
03479 int index = (r * 10 >> 16);
03480
03481 Vehicle *u = v;
03482 do {
03483 if (--index < 0) {
03484 r = Random();
03485
03486 CreateEffectVehicleRel(u,
03487 GB(r, 8, 3) + 2,
03488 GB(r, 16, 3) + 2,
03489 GB(r, 0, 3) + 5,
03490 EV_EXPLOSION_SMALL);
03491 break;
03492 }
03493 } while ((u = u->Next()) != NULL);
03494 }
03495
03496 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03497
03498 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03499 bool ret = v->Next() != NULL;
03500 DeleteLastWagon(v);
03501 return ret;
03502 }
03503
03504 return true;
03505 }
03506
03508 static const uint16 _breakdown_speeds[16] = {
03509 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03510 };
03511
03512
03521 static bool TrainApproachingLineEnd(Train *v, bool signal, bool reverse)
03522 {
03523
03524 uint x = v->x_pos & 0xF;
03525 uint y = v->y_pos & 0xF;
03526
03527
03528
03529 switch (v->direction) {
03530 case DIR_N : x = ~x + ~y + 25; break;
03531 case DIR_NW: x = y;
03532 case DIR_NE: x = ~x + 16; break;
03533 case DIR_E : x = ~x + y + 9; break;
03534 case DIR_SE: x = y; break;
03535 case DIR_S : x = x + y - 7; break;
03536 case DIR_W : x = ~y + x + 9; break;
03537 default: break;
03538 }
03539
03540
03541
03542
03543
03544
03545 if (!signal && x + (v->gcache.cached_veh_length + 1) / 2 * (IsDiagonalDirection(v->direction) ? 1 : 2) >= TILE_SIZE) {
03546
03547 v->cur_speed = 0;
03548 if (reverse) ReverseTrainDirection(v);
03549 return false;
03550 }
03551
03552
03553 v->vehstatus |= VS_TRAIN_SLOWING;
03554 uint16 break_speed = _breakdown_speeds[x & 0xF];
03555 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03556
03557 return true;
03558 }
03559
03560
03566 static bool TrainCanLeaveTile(const Train *v)
03567 {
03568
03569 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03570
03571 TileIndex tile = v->tile;
03572
03573
03574 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03575 DiagDirection dir = GetTunnelBridgeDirection(tile);
03576 if (DiagDirToDir(dir) == v->direction) return false;
03577 }
03578
03579
03580 if (IsRailDepotTile(tile)) {
03581 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03582 if (DiagDirToDir(dir) == v->direction) return false;
03583 }
03584
03585 return true;
03586 }
03587
03588
03596 static TileIndex TrainApproachingCrossingTile(const Train *v)
03597 {
03598 assert(v->IsFrontEngine());
03599 assert(!(v->vehstatus & VS_CRASHED));
03600
03601 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03602
03603 DiagDirection dir = TrainExitDir(v->direction, v->track);
03604 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03605
03606
03607 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03608 !CheckCompatibleRail(v, tile)) {
03609 return INVALID_TILE;
03610 }
03611
03612 return tile;
03613 }
03614
03615
03623 static bool TrainCheckIfLineEnds(Train *v, bool reverse)
03624 {
03625
03626
03627 int t = v->breakdown_ctr;
03628 if (t > 1) {
03629 v->vehstatus |= VS_TRAIN_SLOWING;
03630
03631 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03632 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03633 } else {
03634 v->vehstatus &= ~VS_TRAIN_SLOWING;
03635 }
03636
03637 if (!TrainCanLeaveTile(v)) return true;
03638
03639
03640 DiagDirection dir = TrainExitDir(v->direction, v->track);
03641
03642 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03643
03644
03645 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03646 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03647
03648 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03649 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03650
03651
03652
03653
03654 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03655 if (_settings_game.pf.forbid_90_deg) {
03656 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03657 }
03658
03659
03660 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03661 return TrainApproachingLineEnd(v, false, reverse);
03662 }
03663
03664
03665 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true, reverse);
03666
03667
03668 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03669
03670 return true;
03671 }
03672
03673
03674 static bool TrainLocoHandler(Train *v, bool mode)
03675 {
03676
03677 if (v->vehstatus & VS_CRASHED) {
03678 return mode ? true : HandleCrashedTrain(v);
03679 }
03680
03681 if (v->force_proceed != TFP_NONE) {
03682 ClrBit(v->flags, VRF_TRAIN_STUCK);
03683 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03684 }
03685
03686
03687 if (v->HandleBreakdown()) return true;
03688
03689 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03690 ReverseTrainDirection(v);
03691 }
03692
03693
03694 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03695
03696 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03697 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03698 v->wait_counter = 0;
03699 v->cur_speed = 0;
03700 v->subspeed = 0;
03701 ClrBit(v->flags, VRF_LEAVING_STATION);
03702 ReverseTrainDirection(v);
03703 return true;
03704 } else if (HasBit(v->flags, VRF_LEAVING_STATION)) {
03705
03706
03707
03708 DiagDirection dir = TrainExitDir(v->direction, v->track);
03709 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
03710
03711 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
03712 TryPathReserve(v, true, true);
03713 }
03714 ClrBit(v->flags, VRF_LEAVING_STATION);
03715 }
03716
03717 v->HandleLoading(mode);
03718
03719 if (v->current_order.IsType(OT_LOADING)) return true;
03720
03721 if (CheckTrainStayInDepot(v)) return true;
03722
03723 if (!mode) v->ShowVisualEffect();
03724
03725
03726 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03727 CheckNextTrainTile(v);
03728 }
03729
03730
03731 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
03732 ++v->wait_counter;
03733
03734
03735 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.reverse_at_signals;
03736
03737 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == TFP_NONE) return true;
03738 if (!TryPathReserve(v)) {
03739
03740 if (turn_around) ReverseTrainDirection(v);
03741
03742 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
03743
03744 if (_settings_client.gui.lost_vehicle_warn && v->owner == _local_company) {
03745 SetDParam(0, v->index);
03746 AddVehicleNewsItem(
03747 STR_NEWS_TRAIN_IS_STUCK,
03748 NS_ADVICE,
03749 v->index
03750 );
03751 }
03752 v->wait_counter = 0;
03753 }
03754
03755 if (v->force_proceed == TFP_NONE) return true;
03756 ClrBit(v->flags, VRF_TRAIN_STUCK);
03757 v->wait_counter = 0;
03758 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03759 }
03760 }
03761
03762 if (v->current_order.IsType(OT_LEAVESTATION)) {
03763 v->current_order.Free();
03764 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03765 return true;
03766 }
03767
03768 int j = v->UpdateSpeed();
03769
03770
03771 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
03772
03773 v->force_proceed = TFP_NONE;
03774 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03775 }
03776
03777 int adv_spd = v->GetAdvanceDistance();
03778 if (j < adv_spd) {
03779
03780 if (v->cur_speed == 0) v->SetLastSpeed();
03781 } else {
03782 TrainCheckIfLineEnds(v);
03783
03784 for (;;) {
03785 j -= adv_spd;
03786 TrainController(v, NULL);
03787
03788 if (CheckTrainCollision(v)) break;
03789
03790 adv_spd = v->GetAdvanceDistance();
03791
03792
03793 if (j < adv_spd || v->cur_speed == 0) break;
03794
03795 OrderType order_type = v->current_order.GetType();
03796
03797 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
03798 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
03799 IsTileType(v->tile, MP_STATION) &&
03800 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
03801 ProcessOrders(v);
03802 }
03803 }
03804 v->SetLastSpeed();
03805 }
03806
03807 for (Train *u = v; u != NULL; u = u->Next()) {
03808 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
03809
03810 u->UpdateViewport(false, false);
03811 }
03812
03813 if (v->progress == 0) v->progress = j;
03814
03815 return true;
03816 }
03817
03822 Money Train::GetRunningCost() const
03823 {
03824 Money cost = 0;
03825 const Train *v = this;
03826
03827 do {
03828 const Engine *e = v->GetEngine();
03829 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
03830
03831 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
03832 if (cost_factor == 0) continue;
03833
03834
03835 if (v->IsMultiheaded()) cost_factor /= 2;
03836
03837 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->GetGRF());
03838 } while ((v = v->GetNextVehicle()) != NULL);
03839
03840 return cost;
03841 }
03842
03847 bool Train::Tick()
03848 {
03849 this->tick_counter++;
03850
03851 if (this->IsFrontEngine()) {
03852 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
03853
03854 this->current_order_time++;
03855
03856 if (!TrainLocoHandler(this, false)) return false;
03857
03858 return TrainLocoHandler(this, true);
03859 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
03860
03861 if (++this->crash_anim_pos >= 4400) {
03862 delete this;
03863 return false;
03864 }
03865 }
03866
03867 return true;
03868 }
03869
03874 static void CheckIfTrainNeedsService(Train *v)
03875 {
03876 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
03877 if (v->IsChainInDepot()) {
03878 VehicleServiceInDepot(v);
03879 return;
03880 }
03881
03882 uint max_penalty;
03883 switch (_settings_game.pf.pathfinder_for_trains) {
03884 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
03885 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
03886 default: NOT_REACHED();
03887 }
03888
03889 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
03890
03891 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
03892 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
03893
03894
03895
03896 v->current_order.MakeDummy();
03897 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03898 }
03899 return;
03900 }
03901
03902 DepotID depot = GetDepotIndex(tfdd.tile);
03903
03904 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
03905 v->current_order.GetDestination() != depot &&
03906 !Chance16(3, 16)) {
03907 return;
03908 }
03909
03910 SetBit(v->gv_flags, GVF_SUPPRESS_IMPLICIT_ORDERS);
03911 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
03912 v->dest_tile = tfdd.tile;
03913 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
03914 }
03915
03917 void Train::OnNewDay()
03918 {
03919 AgeVehicle(this);
03920
03921 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
03922
03923 if (this->IsFrontEngine()) {
03924 CheckVehicleBreakdown(this);
03925
03926 CheckIfTrainNeedsService(this);
03927
03928 CheckOrders(this);
03929
03930
03931 if (this->current_order.IsType(OT_GOTO_STATION)) {
03932 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
03933 if (tile != INVALID_TILE) this->dest_tile = tile;
03934 }
03935
03936 if (this->running_ticks != 0) {
03937
03938 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
03939
03940 this->profit_this_year -= cost.GetCost();
03941 this->running_ticks = 0;
03942
03943 SubtractMoneyFromCompanyFract(this->owner, cost);
03944
03945 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
03946 SetWindowClassesDirty(WC_TRAINS_LIST);
03947 }
03948 }
03949 }
03950
03955 Trackdir Train::GetVehicleTrackdir() const
03956 {
03957 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
03958
03959 if (this->track == TRACK_BIT_DEPOT) {
03960
03961 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
03962 }
03963
03964 if (this->track == TRACK_BIT_WORMHOLE) {
03965
03966 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
03967 }
03968
03969 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
03970 }