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00012 #include "stdafx.h"
00013 #include "gui.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 "vehicle_gui.h"
00021 #include "newgrf_engine.h"
00022 #include "newgrf_sound.h"
00023 #include "newgrf_text.h"
00024 #include "group.h"
00025 #include "table/sprites.h"
00026 #include "strings_func.h"
00027 #include "functions.h"
00028 #include "window_func.h"
00029 #include "vehicle_func.h"
00030 #include "sound_func.h"
00031 #include "autoreplace_gui.h"
00032 #include "ai/ai.hpp"
00033 #include "newgrf_station.h"
00034 #include "effectvehicle_func.h"
00035 #include "effectvehicle_base.h"
00036 #include "gamelog.h"
00037 #include "network/network.h"
00038 #include "spritecache.h"
00039 #include "core/random_func.hpp"
00040 #include "company_base.h"
00041 #include "engine_base.h"
00042 #include "engine_func.h"
00043 #include "newgrf.h"
00044
00045 #include "table/strings.h"
00046 #include "table/train_cmd.h"
00047
00048 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck);
00049 static bool TrainCheckIfLineEnds(Train *v);
00050 static void TrainController(Train *v, Vehicle *nomove);
00051 static TileIndex TrainApproachingCrossingTile(const Train *v);
00052 static void CheckIfTrainNeedsService(Train *v);
00053 static void CheckNextTrainTile(Train *v);
00054
00055 static const byte _vehicle_initial_x_fract[4] = {10, 8, 4, 8};
00056 static const byte _vehicle_initial_y_fract[4] = { 8, 4, 8, 10};
00057
00058
00066 static inline DiagDirection TrainExitDir(Direction direction, TrackBits track)
00067 {
00068 static const TrackBits state_dir_table[DIAGDIR_END] = { TRACK_BIT_RIGHT, TRACK_BIT_LOWER, TRACK_BIT_LEFT, TRACK_BIT_UPPER };
00069
00070 DiagDirection diagdir = DirToDiagDir(direction);
00071
00072
00073 if (!HasBit(direction, 0) && track != state_dir_table[diagdir]) {
00074 diagdir = ChangeDiagDir(diagdir, DIAGDIRDIFF_90LEFT);
00075 }
00076
00077 return diagdir;
00078 }
00079
00080
00085 byte FreightWagonMult(CargoID cargo)
00086 {
00087 if (!CargoSpec::Get(cargo)->is_freight) return 1;
00088 return _settings_game.vehicle.freight_trains;
00089 }
00090
00091
00095 void Train::PowerChanged()
00096 {
00097 assert(this->First() == this);
00098
00099 uint32 total_power = 0;
00100 uint32 max_te = 0;
00101 uint32 number_of_parts = 0;
00102 uint16 max_rail_speed = this->tcache.cached_max_speed;
00103
00104 for (const Train *u = this; u != NULL; u = u->Next()) {
00105 uint32 current_power = u->GetPower();
00106 total_power += current_power;
00107
00108
00109 if (current_power > 0) max_te += u->GetWeight() * u->GetTractiveEffort();
00110 total_power += u->GetPoweredPartPower(this);
00111 number_of_parts++;
00112
00113
00114 uint16 rail_speed = GetRailTypeInfo(GetRailType(u->tile))->max_speed;
00115 if (rail_speed > 0) max_rail_speed = min(max_rail_speed, rail_speed);
00116 }
00117
00118 this->tcache.cached_axle_resistance = 60 * number_of_parts;
00119 this->tcache.cached_air_drag = 20 + 3 * number_of_parts;
00120
00121 max_te *= 10000;
00122 max_te /= 256;
00123 if (this->tcache.cached_power != total_power || this->tcache.cached_max_te != max_te) {
00124
00125 if (total_power == 0) this->vehstatus |= VS_STOPPED;
00126
00127 this->tcache.cached_power = total_power;
00128 this->tcache.cached_max_te = max_te;
00129 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00130 SetWindowWidgetDirty(WC_VEHICLE_VIEW, this->index, VVW_WIDGET_START_STOP_VEH);
00131 }
00132
00133 this->tcache.cached_max_rail_speed = max_rail_speed;
00134 }
00135
00136
00141 void Train::CargoChanged()
00142 {
00143 assert(this->First() == this);
00144 uint32 weight = 0;
00145
00146 for (Train *u = this; u != NULL; u = u->Next()) {
00147 uint32 current_weight = u->GetWeight();
00148 weight += current_weight;
00149 u->tcache.cached_slope_resistance = current_weight * u->GetSlopeSteepness();
00150 }
00151
00152
00153 this->tcache.cached_weight = weight;
00154
00155
00156 this->PowerChanged();
00157 }
00158
00159
00164 static void RailVehicleLengthChanged(const Train *u)
00165 {
00166
00167 const Engine *engine = Engine::Get(u->engine_type);
00168 uint32 grfid = engine->grffile->grfid;
00169 GRFConfig *grfconfig = GetGRFConfig(grfid);
00170 if (GamelogGRFBugReverse(grfid, engine->internal_id) || !HasBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH)) {
00171 ShowNewGrfVehicleError(u->engine_type, STR_NEWGRF_BROKEN, STR_NEWGRF_BROKEN_VEHICLE_LENGTH, GBUG_VEH_LENGTH, true);
00172 }
00173 }
00174
00176 void CheckTrainsLengths()
00177 {
00178 const Train *v;
00179
00180 FOR_ALL_TRAINS(v) {
00181 if (v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00182 for (const Train *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00183 if (u->track != TRACK_BIT_DEPOT) {
00184 if ((w->track != TRACK_BIT_DEPOT &&
00185 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->tcache.cached_veh_length) ||
00186 (w->track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00187 SetDParam(0, v->index);
00188 SetDParam(1, v->owner);
00189 ShowErrorMessage(STR_BROKEN_VEHICLE_LENGTH, INVALID_STRING_ID, 0, 0, true);
00190
00191 if (!_networking) DoCommandP(0, PM_PAUSED_ERROR, 1, CMD_PAUSE);
00192 }
00193 }
00194 }
00195 }
00196 }
00197 }
00198
00203 void Train::RailtypeChanged()
00204 {
00205 for (Train *u = this; u != NULL; u = u->Next()) {
00206
00207 u->UpdateVisualEffect(false);
00208 }
00209 this->PowerChanged();
00210 if (this->IsFrontEngine()) this->UpdateAcceleration();
00211 }
00212
00217 void Train::UpdateVisualEffect(bool allow_power_change)
00218 {
00219 byte powered_before = this->tcache.cached_vis_effect & 0x80;
00220
00221 const Engine *e = Engine::Get(this->engine_type);
00222 if (e->u.rail.visual_effect != 0) {
00223 this->tcache.cached_vis_effect = e->u.rail.visual_effect;
00224 } else {
00225 if (this->IsWagon() || this->IsArticulatedPart()) {
00226
00227 this->tcache.cached_vis_effect = 0x40;
00228 } else if (e->u.rail.engclass == 0) {
00229
00230 this->tcache.cached_vis_effect = 4;
00231 } else {
00232
00233 this->tcache.cached_vis_effect = 8;
00234 }
00235 }
00236
00237
00238 if (HasBit(e->info.callback_mask, CBM_TRAIN_WAGON_POWER)) {
00239 uint16 callback = GetVehicleCallback(CBID_TRAIN_WAGON_POWER, 0, 0, this->engine_type, this);
00240
00241 if (callback != CALLBACK_FAILED) this->tcache.cached_vis_effect = GB(callback, 0, 8);
00242 }
00243
00244 if (!allow_power_change && powered_before != (this->tcache.cached_vis_effect & 0x80)) {
00245 this->tcache.cached_vis_effect ^= 0x80;
00246 ShowNewGrfVehicleError(this->engine_type, STR_NEWGRF_BROKEN, STR_NEWGRF_BROKEN_POWERED_WAGON, GBUG_VEH_POWERED_WAGON, false);
00247 }
00248 }
00249
00256 void Train::ConsistChanged(bool same_length)
00257 {
00258 uint16 max_speed = UINT16_MAX;
00259
00260 assert(this->IsFrontEngine() || this->IsFreeWagon());
00261
00262 const RailVehicleInfo *rvi_v = RailVehInfo(this->engine_type);
00263 EngineID first_engine = this->IsFrontEngine() ? this->engine_type : INVALID_ENGINE;
00264 this->tcache.cached_total_length = 0;
00265 this->compatible_railtypes = RAILTYPES_NONE;
00266
00267 bool train_can_tilt = true;
00268
00269 for (Train *u = this; u != NULL; u = u->Next()) {
00270 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00271
00272
00273 assert(u->First() == this);
00274
00275
00276 u->tcache.first_engine = this == u ? INVALID_ENGINE : first_engine;
00277 u->railtype = rvi_u->railtype;
00278
00279 if (u->IsEngine()) first_engine = u->engine_type;
00280
00281
00282 u->tcache.user_def_data = rvi_u->user_def_data;
00283 this->InvalidateNewGRFCache();
00284 u->InvalidateNewGRFCache();
00285 }
00286
00287 for (Train *u = this; u != NULL; u = u->Next()) {
00288
00289 u->tcache.user_def_data = GetVehicleProperty(u, PROP_TRAIN_USER_DATA, u->tcache.user_def_data);
00290 this->InvalidateNewGRFCache();
00291 u->InvalidateNewGRFCache();
00292 }
00293
00294 for (Train *u = this; u != NULL; u = u->Next()) {
00295 const Engine *e_u = Engine::Get(u->engine_type);
00296 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00297
00298 if (!HasBit(e_u->info.misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00299
00300
00301 u->tcache.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->tcache.first_engine);
00302
00303
00304 u->colourmap = PAL_NONE;
00305
00306
00307 u->UpdateVisualEffect(true);
00308
00309 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00310 UsesWagonOverride(u) && !HasBit(u->tcache.cached_vis_effect, 7)) {
00311
00312 SetBit(u->flags, VRF_POWEREDWAGON);
00313 } else {
00314 ClrBit(u->flags, VRF_POWEREDWAGON);
00315 }
00316
00317 if (!u->IsArticulatedPart()) {
00318
00319
00320 if (rvi_u->power > 0) {
00321 this->compatible_railtypes |= GetRailTypeInfo(u->railtype)->powered_railtypes;
00322 }
00323
00324
00325
00326 if (HasBit(u->flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00327 u->railtype = RAILTYPE_RAIL;
00328 u->compatible_railtypes |= RAILTYPES_RAIL;
00329 }
00330
00331
00332 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00333 uint16 speed = GetVehicleProperty(u, PROP_TRAIN_SPEED, rvi_u->max_speed);
00334 if (speed != 0) max_speed = min(speed, max_speed);
00335 }
00336 }
00337
00338 u->cargo_cap = GetVehicleCapacity(u);
00339
00340
00341 uint16 veh_len = CALLBACK_FAILED;
00342 if (HasBit(e_u->info.callback_mask, CBM_VEHICLE_LENGTH)) {
00343 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00344 }
00345 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00346 veh_len = 8 - Clamp(veh_len, 0, 7);
00347
00348
00349 if (same_length && veh_len != u->tcache.cached_veh_length) RailVehicleLengthChanged(u);
00350
00351
00352 if (!same_length) u->tcache.cached_veh_length = veh_len;
00353
00354 this->tcache.cached_total_length += u->tcache.cached_veh_length;
00355 this->InvalidateNewGRFCache();
00356 u->InvalidateNewGRFCache();
00357 }
00358
00359
00360 this->tcache.cached_max_speed = max_speed;
00361 this->tcache.cached_tilt = train_can_tilt;
00362 this->tcache.cached_max_curve_speed = this->GetCurveSpeedLimit();
00363
00364
00365 this->CargoChanged();
00366
00367 if (this->IsFrontEngine()) {
00368 this->UpdateAcceleration();
00369 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00370 }
00371 }
00372
00383 int GetTrainStopLocation(StationID station_id, TileIndex tile, const Train *v, int *station_ahead, int *station_length)
00384 {
00385 const Station *st = Station::Get(station_id);
00386 *station_ahead = st->GetPlatformLength(tile, DirToDiagDir(v->direction)) * TILE_SIZE;
00387 *station_length = st->GetPlatformLength(tile) * TILE_SIZE;
00388
00389
00390
00391 OrderStopLocation osl = OSL_PLATFORM_MIDDLE;
00392 if (v->tcache.cached_total_length >= *station_length) {
00393
00394 osl = OSL_PLATFORM_FAR_END;
00395 } else if (v->current_order.IsType(OT_GOTO_STATION) && v->current_order.GetDestination() == station_id) {
00396 osl = v->current_order.GetStopLocation();
00397 }
00398
00399
00400 int stop;
00401 switch (osl) {
00402 default: NOT_REACHED();
00403
00404 case OSL_PLATFORM_NEAR_END:
00405 stop = v->tcache.cached_total_length;
00406 break;
00407
00408 case OSL_PLATFORM_MIDDLE:
00409 stop = *station_length - (*station_length - v->tcache.cached_total_length) / 2;
00410 break;
00411
00412 case OSL_PLATFORM_FAR_END:
00413 stop = *station_length;
00414 break;
00415 }
00416
00417
00418
00419 return stop - (v->tcache.cached_veh_length + 1) / 2;
00420 }
00421
00422
00427 int Train::GetCurveSpeedLimit() const
00428 {
00429 assert(this->First() == this);
00430
00431 static const int absolute_max_speed = UINT16_MAX;
00432 int max_speed = absolute_max_speed;
00433
00434 if (_settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) return max_speed;
00435
00436 int curvecount[2] = {0, 0};
00437
00438
00439 int numcurve = 0;
00440 int sum = 0;
00441 int pos = 0;
00442 int lastpos = -1;
00443 for (const Vehicle *u = this; u->Next() != NULL; u = u->Next(), pos++) {
00444 Direction this_dir = u->direction;
00445 Direction next_dir = u->Next()->direction;
00446
00447 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00448 if (dirdiff == DIRDIFF_SAME) continue;
00449
00450 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00451 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00452 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00453 if (lastpos != -1) {
00454 numcurve++;
00455 sum += pos - lastpos;
00456 if (pos - lastpos == 1) {
00457 max_speed = 88;
00458 }
00459 }
00460 lastpos = pos;
00461 }
00462
00463
00464 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00465 max_speed = 61;
00466 }
00467 }
00468
00469 if (numcurve > 0 && max_speed > 88) {
00470 if (curvecount[0] == 1 && curvecount[1] == 1) {
00471 max_speed = absolute_max_speed;
00472 } else {
00473 sum /= numcurve;
00474 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00475 }
00476 }
00477
00478 if (max_speed != absolute_max_speed) {
00479
00480 const RailtypeInfo *rti = GetRailTypeInfo(this->railtype);
00481 max_speed += (max_speed / 2) * rti->curve_speed;
00482
00483 if (this->tcache.cached_tilt) {
00484
00485 max_speed += max_speed / 5;
00486 }
00487 }
00488
00489 return max_speed;
00490 }
00491
00496 int Train::GetCurrentMaxSpeed() const
00497 {
00498 int max_speed = this->tcache.cached_max_curve_speed;
00499 assert(max_speed == this->GetCurveSpeedLimit());
00500
00501 if (IsRailStationTile(this->tile)) {
00502 StationID sid = GetStationIndex(this->tile);
00503 if (this->current_order.ShouldStopAtStation(this, sid)) {
00504 int station_ahead;
00505 int station_length;
00506 int stop_at = GetTrainStopLocation(sid, this->tile, this, &station_ahead, &station_length);
00507
00508
00509
00510 int distance_to_go = station_ahead / TILE_SIZE - (station_length - stop_at) / TILE_SIZE;
00511
00512 if (distance_to_go > 0) {
00513 int st_max_speed = 120;
00514
00515 int delta_v = this->cur_speed / (distance_to_go + 1);
00516 if (max_speed > (this->cur_speed - delta_v)) {
00517 st_max_speed = this->cur_speed - (delta_v / 10);
00518 }
00519
00520 st_max_speed = max(st_max_speed, 25 * distance_to_go);
00521 max_speed = min(max_speed, st_max_speed);
00522 }
00523 }
00524 }
00525
00526 for (const Train *u = this; u != NULL; u = u->Next()) {
00527 if (u->track == TRACK_BIT_DEPOT) {
00528 max_speed = min(max_speed, 61);
00529 break;
00530 }
00531 }
00532
00533 return min(max_speed, this->tcache.cached_max_rail_speed);
00534 }
00535
00541 int Train::GetAcceleration() const
00542 {
00543 int32 speed = this->GetCurrentSpeed();
00544
00545
00546 int32 mass = this->tcache.cached_weight;
00547
00548
00549 int32 power = this->tcache.cached_power * 746;
00550
00551 int32 resistance = 0;
00552
00553 bool maglev = this->GetAccelerationType() == 2;
00554
00555 const int area = 120;
00556 if (!maglev) {
00557 resistance = (13 * mass) / 10;
00558 resistance += this->tcache.cached_axle_resistance;
00559 resistance += (this->GetRollingFriction() * mass * speed) / 1000;
00560 resistance += (area * this->tcache.cached_air_drag * speed * speed) / 10000;
00561 } else {
00562 resistance += (area * this->tcache.cached_air_drag * speed * speed) / 20000;
00563 }
00564
00565 resistance += this->GetSlopeResistance();
00566 resistance *= 4;
00567
00568
00569 AccelStatus mode = this->GetAccelerationStatus();
00570
00571 const int max_te = this->tcache.cached_max_te;
00572 int force;
00573 if (speed > 0) {
00574 if (!maglev) {
00575 force = power / speed;
00576 force *= 22;
00577 force /= 10;
00578 if (mode == AS_ACCEL && force > max_te) force = max_te;
00579 } else {
00580 force = power / 25;
00581 }
00582 } else {
00583
00584 force = (mode == AS_ACCEL && !maglev) ? min(max_te, power) : power;
00585 force = max(force, (mass * 8) + resistance);
00586 }
00587
00588 if (mode == AS_ACCEL) {
00589 return (force - resistance) / (mass * 2);
00590 } else {
00591 return min(-force - resistance, -10000) / mass;
00592 }
00593 }
00594
00595 void Train::UpdateAcceleration()
00596 {
00597 assert(this->IsFrontEngine());
00598
00599 this->max_speed = this->tcache.cached_max_rail_speed;
00600
00601 uint power = this->tcache.cached_power;
00602 uint weight = this->tcache.cached_weight;
00603 assert(weight != 0);
00604 this->acceleration = Clamp(power / weight * 4, 1, 255);
00605 }
00606
00612 int Train::GetDisplayImageWidth(Point *offset) const
00613 {
00614 int reference_width = TRAININFO_DEFAULT_VEHICLE_WIDTH;
00615 int vehicle_pitch = 0;
00616
00617 const Engine *e = Engine::Get(this->engine_type);
00618 if (e->grffile != NULL && is_custom_sprite(e->u.rail.image_index)) {
00619 reference_width = e->grffile->traininfo_vehicle_width;
00620 vehicle_pitch = e->grffile->traininfo_vehicle_pitch;
00621 }
00622
00623 if (offset != NULL) {
00624 offset->x = reference_width / 2;
00625 offset->y = vehicle_pitch;
00626 }
00627 return this->tcache.cached_veh_length * reference_width / 8;
00628 }
00629
00630 static SpriteID GetDefaultTrainSprite(uint8 spritenum, Direction direction)
00631 {
00632 return ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00633 }
00634
00635 SpriteID Train::GetImage(Direction direction) const
00636 {
00637 uint8 spritenum = this->spritenum;
00638 SpriteID sprite;
00639
00640 if (HasBit(this->flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00641
00642 if (is_custom_sprite(spritenum)) {
00643 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00644 if (sprite != 0) return sprite;
00645
00646 spritenum = Engine::Get(this->engine_type)->original_image_index;
00647 }
00648
00649 sprite = GetDefaultTrainSprite(spritenum, direction);
00650
00651 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00652
00653 return sprite;
00654 }
00655
00656 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00657 {
00658 const Engine *e = Engine::Get(engine);
00659 Direction dir = rear_head ? DIR_E : DIR_W;
00660 uint8 spritenum = e->u.rail.image_index;
00661
00662 if (is_custom_sprite(spritenum)) {
00663 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00664 if (sprite != 0) {
00665 if (e->grffile != NULL) {
00666 y += e->grffile->traininfo_vehicle_pitch;
00667 }
00668 return sprite;
00669 }
00670
00671 spritenum = Engine::Get(engine)->original_image_index;
00672 }
00673
00674 if (rear_head) spritenum++;
00675
00676 return GetDefaultTrainSprite(spritenum, DIR_W);
00677 }
00678
00679 void DrawTrainEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal)
00680 {
00681 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00682 int yf = y;
00683 int yr = y;
00684
00685 SpriteID spritef = GetRailIcon(engine, false, yf);
00686 SpriteID spriter = GetRailIcon(engine, true, yr);
00687 const Sprite *real_spritef = GetSprite(spritef, ST_NORMAL);
00688 const Sprite *real_spriter = GetSprite(spriter, ST_NORMAL);
00689
00690 preferred_x = Clamp(preferred_x, left - real_spritef->x_offs + 14, right - real_spriter->width - real_spriter->x_offs - 15);
00691
00692 DrawSprite(spritef, pal, preferred_x - 14, yf);
00693 DrawSprite(spriter, pal, preferred_x + 15, yr);
00694 } else {
00695 SpriteID sprite = GetRailIcon(engine, false, y);
00696 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00697 preferred_x = Clamp(preferred_x, left - real_sprite->x_offs, right - real_sprite->width - real_sprite->x_offs);
00698 DrawSprite(sprite, pal, preferred_x, y);
00699 }
00700 }
00701
00702 static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, DoCommandFlag flags)
00703 {
00704 const Engine *e = Engine::Get(engine);
00705 const RailVehicleInfo *rvi = &e->u.rail;
00706 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00707
00708
00709 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00710
00711 if (flags & DC_QUERY_COST) return value;
00712
00713
00714 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00715
00716 uint num_vehicles = 1 + CountArticulatedParts(engine, false);
00717
00718
00719 if (!Vehicle::CanAllocateItem(num_vehicles)) {
00720 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00721 }
00722
00723 if (flags & DC_EXEC) {
00724 Train *v = new Train();
00725 v->spritenum = rvi->image_index;
00726
00727 v->engine_type = engine;
00728 v->tcache.first_engine = INVALID_ENGINE;
00729
00730 DiagDirection dir = GetRailDepotDirection(tile);
00731
00732 v->direction = DiagDirToDir(dir);
00733 v->tile = tile;
00734
00735 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00736 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00737
00738 v->x_pos = x;
00739 v->y_pos = y;
00740 v->z_pos = GetSlopeZ(x, y);
00741 v->owner = _current_company;
00742 v->track = TRACK_BIT_DEPOT;
00743 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00744
00745 v->SetWagon();
00746
00747 v->SetFreeWagon();
00748 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00749
00750 v->cargo_type = e->GetDefaultCargoType();
00751 v->cargo_cap = rvi->capacity;
00752 v->value = value.GetCost();
00753
00754 v->railtype = rvi->railtype;
00755
00756 v->build_year = _cur_year;
00757 v->cur_image = SPR_IMG_QUERY;
00758 v->random_bits = VehicleRandomBits();
00759
00760 v->group_id = DEFAULT_GROUP;
00761
00762 AddArticulatedParts(v);
00763
00764 _new_vehicle_id = v->index;
00765
00766 VehicleMove(v, false);
00767 v->First()->ConsistChanged(false);
00768 UpdateTrainGroupID(v->First());
00769
00770 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
00771 if (IsLocalCompany()) {
00772 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00773 }
00774 Company::Get(_current_company)->num_engines[engine]++;
00775
00776 CheckConsistencyOfArticulatedVehicle(v);
00777
00778
00779 Train *w;
00780 FOR_ALL_TRAINS(w) {
00781 if (w->tile == tile &&
00782 w->IsFreeWagon() &&
00783 w->engine_type == engine &&
00784 w->First() != v &&
00785 !(w->vehstatus & VS_CRASHED)) {
00786 DoCommand(0, v->index | (w->Last()->index << 16), 1, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
00787 break;
00788 }
00789 }
00790 }
00791
00792 return value;
00793 }
00794
00796 static void NormalizeTrainVehInDepot(const Train *u)
00797 {
00798 const Train *v;
00799 FOR_ALL_TRAINS(v) {
00800 if (v->IsFreeWagon() && v->tile == u->tile &&
00801 v->track == TRACK_BIT_DEPOT) {
00802 if (DoCommand(0, v->index | (u->index << 16), 1, DC_EXEC,
00803 CMD_MOVE_RAIL_VEHICLE).Failed())
00804 break;
00805 }
00806 }
00807 }
00808
00809 static void AddRearEngineToMultiheadedTrain(Train *v)
00810 {
00811 Train *u = new Train();
00812 v->value >>= 1;
00813 u->value = v->value;
00814 u->direction = v->direction;
00815 u->owner = v->owner;
00816 u->tile = v->tile;
00817 u->x_pos = v->x_pos;
00818 u->y_pos = v->y_pos;
00819 u->z_pos = v->z_pos;
00820 u->track = TRACK_BIT_DEPOT;
00821 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00822 u->spritenum = v->spritenum + 1;
00823 u->cargo_type = v->cargo_type;
00824 u->cargo_subtype = v->cargo_subtype;
00825 u->cargo_cap = v->cargo_cap;
00826 u->railtype = v->railtype;
00827 u->engine_type = v->engine_type;
00828 u->build_year = v->build_year;
00829 u->cur_image = SPR_IMG_QUERY;
00830 u->random_bits = VehicleRandomBits();
00831 v->SetMultiheaded();
00832 u->SetMultiheaded();
00833 v->SetNext(u);
00834 VehicleMove(u, false);
00835
00836
00837 v->other_multiheaded_part = u;
00838 u->other_multiheaded_part = v;
00839 }
00840
00849 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00850 {
00851 EngineID eid = GB(p1, 0, 16);
00852
00853 if (!IsEngineBuildable(eid, VEH_TRAIN, _current_company)) return_cmd_error(STR_ERROR_RAIL_VEHICLE_NOT_AVAILABLE);
00854
00855 const Engine *e = Engine::Get(eid);
00856 const RailVehicleInfo *rvi = &e->u.rail;
00857 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00858
00859
00860 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00861
00862 if (flags & DC_QUERY_COST) return value;
00863
00864
00865
00866 if (!IsRailDepotTile(tile)) return CMD_ERROR;
00867 if (!IsTileOwner(tile, _current_company)) return CMD_ERROR;
00868
00869 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(eid, tile, flags);
00870
00871 uint num_vehicles =
00872 (rvi->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1) +
00873 CountArticulatedParts(eid, false);
00874
00875
00876
00877 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00878
00879
00880 if (!Vehicle::CanAllocateItem(num_vehicles)) {
00881 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00882 }
00883
00884 UnitID unit_num = (flags & DC_AUTOREPLACE) ? 0 : GetFreeUnitNumber(VEH_TRAIN);
00885 if (unit_num > _settings_game.vehicle.max_trains) {
00886 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
00887 }
00888
00889 if (flags & DC_EXEC) {
00890 DiagDirection dir = GetRailDepotDirection(tile);
00891 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00892 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00893
00894 Train *v = new Train();
00895 v->unitnumber = unit_num;
00896 v->direction = DiagDirToDir(dir);
00897 v->tile = tile;
00898 v->owner = _current_company;
00899 v->x_pos = x;
00900 v->y_pos = y;
00901 v->z_pos = GetSlopeZ(x, y);
00902 v->track = TRACK_BIT_DEPOT;
00903 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00904 v->spritenum = rvi->image_index;
00905 v->cargo_type = e->GetDefaultCargoType();
00906 v->cargo_cap = rvi->capacity;
00907 v->max_speed = rvi->max_speed;
00908 v->value = value.GetCost();
00909 v->last_station_visited = INVALID_STATION;
00910
00911 v->engine_type = eid;
00912 v->tcache.first_engine = INVALID_ENGINE;
00913
00914 v->reliability = e->reliability;
00915 v->reliability_spd_dec = e->reliability_spd_dec;
00916 v->max_age = e->GetLifeLengthInDays();
00917
00918 v->railtype = rvi->railtype;
00919 _new_vehicle_id = v->index;
00920
00921 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_trains;
00922 v->date_of_last_service = _date;
00923 v->build_year = _cur_year;
00924 v->cur_image = SPR_IMG_QUERY;
00925 v->random_bits = VehicleRandomBits();
00926
00927 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00928
00929 v->group_id = DEFAULT_GROUP;
00930
00931 v->SetFrontEngine();
00932 v->SetEngine();
00933
00934 VehicleMove(v, false);
00935
00936 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00937 AddRearEngineToMultiheadedTrain(v);
00938 } else {
00939 AddArticulatedParts(v);
00940 }
00941
00942 v->ConsistChanged(false);
00943 UpdateTrainGroupID(v);
00944
00945 if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) {
00946 NormalizeTrainVehInDepot(v);
00947 }
00948
00949 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00950 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
00951 SetWindowDirty(WC_COMPANY, v->owner);
00952 if (IsLocalCompany()) {
00953 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00954 }
00955
00956 Company::Get(_current_company)->num_engines[eid]++;
00957
00958 CheckConsistencyOfArticulatedVehicle(v);
00959 }
00960
00961 return value;
00962 }
00963
00964
00965 bool Train::IsInDepot() const
00966 {
00967
00968 if (!IsRailDepotTile(this->tile) || this->cur_speed != 0) return false;
00969
00970
00971 for (const Train *v = this; v != NULL; v = v->Next()) {
00972 if (v->track != TRACK_BIT_DEPOT || v->tile != this->tile) return false;
00973 }
00974
00975 return true;
00976 }
00977
00978 bool Train::IsStoppedInDepot() const
00979 {
00980
00981 if (this->IsFrontEngine() && !(this->vehstatus & VS_STOPPED)) return false;
00982 return this->IsInDepot();
00983 }
00984
00985 static Train *FindGoodVehiclePos(const Train *src)
00986 {
00987 EngineID eng = src->engine_type;
00988 TileIndex tile = src->tile;
00989
00990 Train *dst;
00991 FOR_ALL_TRAINS(dst) {
00992 if (dst->IsFreeWagon() && dst->tile == tile && !(dst->vehstatus & VS_CRASHED)) {
00993
00994 Train *t = dst;
00995 while (t->engine_type == eng) {
00996 t = t->Next();
00997 if (t == NULL) return dst;
00998 }
00999 }
01000 }
01001
01002 return NULL;
01003 }
01004
01006 typedef SmallVector<Train *, 16> TrainList;
01007
01013 static void MakeTrainBackup(TrainList &list, Train *t)
01014 {
01015 for (; t != NULL; t = t->Next()) *list.Append() = t;
01016 }
01017
01022 static void RestoreTrainBackup(TrainList &list)
01023 {
01024
01025 if (list.Length() == 0) return;
01026
01027 Train *prev = NULL;
01028
01029 for (Train **iter = list.Begin(); iter != list.End(); iter++) {
01030 Train *t = *iter;
01031 if (prev != NULL) {
01032 prev->SetNext(t);
01033 } else if (t->Previous() != NULL) {
01034
01035 t->Previous()->SetNext(NULL);
01036 }
01037 prev = t;
01038 }
01039 }
01040
01046 static void RemoveFromConsist(Train *part, bool chain = false)
01047 {
01048 Train *tail = chain ? part->Last() : part->GetLastEnginePart();
01049
01050
01051
01052 if (part->Previous() != NULL) part->Previous()->SetNext(tail->Next());
01053
01054
01055 tail->SetNext(NULL);
01056 }
01057
01063 static void InsertInConsist(Train *dst, Train *chain)
01064 {
01065
01066 assert(dst->Next() == NULL || !dst->Next()->IsArticulatedPart());
01067
01068 chain->Last()->SetNext(dst->Next());
01069 dst->SetNext(chain);
01070 }
01071
01077 static void NormaliseDualHeads(Train *t)
01078 {
01079 for (; t != NULL; t = t->GetNextVehicle()) {
01080 if (!t->IsMultiheaded() || !t->IsEngine()) continue;
01081
01082
01083 Train *u;
01084 for (u = t; u->Next() != NULL && !u->Next()->IsEngine(); u = u->Next()) {}
01085
01086 if (u == t->other_multiheaded_part) continue;
01087
01088
01089 RemoveFromConsist(t->other_multiheaded_part);
01090
01091 InsertInConsist(u, t->other_multiheaded_part);
01092 }
01093 }
01094
01099 static void NormaliseSubtypes(Train *chain)
01100 {
01101
01102 if (chain == NULL) return;
01103
01104
01105 assert(chain->Previous() == NULL);
01106
01107
01108 if (chain->IsWagon()) {
01109 chain->SetFreeWagon();
01110 } else {
01111 assert(chain->IsEngine());
01112 chain->SetFrontEngine();
01113 }
01114
01115
01116 for (Train *t = chain->Next(); t != NULL; t = t->Next()) {
01117 t->ClearFreeWagon();
01118 t->ClearFrontEngine();
01119 }
01120 }
01121
01131 static CommandCost CheckNewTrain(Train *original_dst, Train *dst, Train *original_src, Train *src)
01132 {
01133
01134
01135
01136 if ((src != NULL && src->IsEngine() ? 1 : 0) +
01137 (dst != NULL && dst->IsEngine() ? 1 : 0) -
01138 (original_src != NULL && original_src->IsEngine() ? 1 : 0) -
01139 (original_dst != NULL && original_dst->IsEngine() ? 1 : 0) <= 0) {
01140 return CommandCost();
01141 }
01142
01143
01144
01145 if (GetFreeUnitNumber(VEH_TRAIN) <= _settings_game.vehicle.max_trains) return CommandCost();
01146
01147 return_cmd_error(STR_ERROR_TOO_MANY_VEHICLES_IN_GAME);
01148 }
01149
01155 static CommandCost CheckTrainAttachment(Train *t)
01156 {
01157
01158 if (t == NULL || t->Next() == NULL || !t->IsEngine()) return CommandCost();
01159
01160
01161
01162 int allowed_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
01163
01164 Train *head = t;
01165 Train *prev = t;
01166
01167
01168 t = t->Next();
01169 allowed_len--;
01170 prev->SetNext(NULL);
01171
01172
01173 head->InvalidateNewGRFCache();
01174
01175 while (t != NULL) {
01176 Train *next = t->Next();
01177
01178
01179
01180 t->SetNext(NULL);
01181
01182
01183 if (!t->IsArticulatedPart() && !t->IsRearDualheaded()) {
01184 allowed_len--;
01185
01186
01187 EngineID first_engine = t->tcache.first_engine;
01188 t->tcache.first_engine = INVALID_ENGINE;
01189
01190
01191
01192 t->InvalidateNewGRFCache();
01193
01194 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, head->engine_type, t, head);
01195
01196
01197 t->tcache.first_engine = first_engine;
01198
01199
01200 t->InvalidateNewGRFCache();
01201 head->InvalidateNewGRFCache();
01202
01203 if (callback != CALLBACK_FAILED) {
01204
01205 StringID error = STR_NULL;
01206
01207 if (callback == 0xFD) error = STR_ERROR_INCOMPATIBLE_RAIL_TYPES;
01208 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(head->engine_type), 0xD000 + callback);
01209
01210 if (error != STR_NULL) return_cmd_error(error);
01211 }
01212 }
01213
01214
01215 prev->SetNext(t);
01216 prev = t;
01217 t = next;
01218 }
01219
01220 if (allowed_len <= 0) return_cmd_error(STR_ERROR_TRAIN_TOO_LONG);
01221 return CommandCost();
01222 }
01223
01234 static CommandCost ValidateTrains(Train *original_dst, Train *dst, Train *original_src, Train *src, bool check_limit)
01235 {
01236
01237 CommandCost ret = CheckTrainAttachment(src);
01238 if (ret.Failed()) return ret;
01239 ret = CheckTrainAttachment(dst);
01240 if (ret.Failed()) return ret;
01241
01242
01243 return check_limit ? CheckNewTrain(original_dst, dst, original_src, src) : CommandCost();
01244 }
01245
01254 static void ArrangeTrains(Train **dst_head, Train *dst, Train **src_head, Train *src, bool move_chain)
01255 {
01256
01257 if (*src_head == *dst_head) {
01258
01259
01260 *dst_head = NULL;
01261 } else if (*dst_head == NULL) {
01262
01263
01264 *dst_head = src;
01265 }
01266
01267 if (src == *src_head) {
01268
01269
01270
01271
01272
01273
01274 *src_head = move_chain ? NULL :
01275 (src->IsMultiheaded() ? src->GetNextUnit() : src->GetNextVehicle());
01276 }
01277
01278
01279
01280
01281 RemoveFromConsist(src, move_chain);
01282 if (*dst_head != src) InsertInConsist(dst, src);
01283
01284
01285
01286 NormaliseDualHeads(*src_head);
01287 NormaliseDualHeads(*dst_head);
01288 }
01289
01295 static void NormaliseTrainHead(Train *head)
01296 {
01297
01298 if (head == NULL) return;
01299
01300
01301 head->ConsistChanged(false);
01302 UpdateTrainGroupID(head);
01303
01304
01305 if (!head->IsFrontEngine()) return;
01306
01307
01308 SetWindowDirty(WC_VEHICLE_REFIT, head->index);
01309 SetWindowWidgetDirty(WC_VEHICLE_VIEW, head->index, VVW_WIDGET_REFIT_VEH);
01310
01311
01312 if (head->unitnumber != 0) return;
01313 head->unitnumber = GetFreeUnitNumber(VEH_TRAIN);
01314 }
01315
01327 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01328 {
01329 VehicleID s = GB(p1, 0, 16);
01330 VehicleID d = GB(p1, 16, 16);
01331 bool move_chain = HasBit(p2, 0);
01332
01333 Train *src = Train::GetIfValid(s);
01334 if (src == NULL || !CheckOwnership(src->owner)) return CMD_ERROR;
01335
01336
01337 if (src->vehstatus & VS_CRASHED) return CMD_ERROR;
01338
01339
01340 Train *dst;
01341 if (d == INVALID_VEHICLE) {
01342 dst = src->IsEngine() ? NULL : FindGoodVehiclePos(src);
01343 } else {
01344 dst = Train::GetIfValid(d);
01345 if (dst == NULL || !CheckOwnership(dst->owner)) return CMD_ERROR;
01346
01347
01348 if (dst->vehstatus & VS_CRASHED) return CMD_ERROR;
01349 }
01350
01351
01352 src = src->GetFirstEnginePart();
01353 if (dst != NULL) {
01354 dst = dst->GetFirstEnginePart();
01355 }
01356
01357
01358 if (src == dst) return CommandCost();
01359
01360
01361 Train *src_head = src->First();
01362 Train *dst_head;
01363 if (dst != NULL) {
01364 dst_head = dst->First();
01365 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01366
01367 dst = dst->GetLastEnginePart();
01368 } else {
01369 dst_head = NULL;
01370 }
01371
01372 if (src->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01373
01374
01375 if (move_chain && src_head == dst_head) return CommandCost();
01376
01377
01378 if (!move_chain && dst != NULL && dst->IsRearDualheaded() && src == dst->other_multiheaded_part) return CommandCost();
01379
01380
01381 if (!src_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01382
01383
01384 if (dst_head != NULL && !dst_head->IsStoppedInDepot()) return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01385
01386
01387
01388 TrainList original_src;
01389 TrainList original_dst;
01390
01391 MakeTrainBackup(original_src, src_head);
01392 MakeTrainBackup(original_dst, dst_head);
01393
01394
01395
01396
01397 Train *original_src_head = src_head;
01398 Train *original_dst_head = (dst_head == src_head ? NULL : dst_head);
01399
01400
01401 ArrangeTrains(&dst_head, dst, &src_head, src, move_chain);
01402
01403 if ((flags & DC_AUTOREPLACE) == 0) {
01404
01405
01406
01407 CommandCost ret = ValidateTrains(original_dst_head, dst_head, original_src_head, src_head, true);
01408 if (ret.Failed()) {
01409
01410 RestoreTrainBackup(original_src);
01411 RestoreTrainBackup(original_dst);
01412 return ret;
01413 }
01414 }
01415
01416
01417 if (flags & DC_EXEC) {
01418
01419 NormaliseSubtypes(src_head);
01420 NormaliseSubtypes(dst_head);
01421
01422
01423
01424
01425
01426
01427
01428
01429
01430
01431
01432
01433
01434
01435
01436
01437
01438
01439
01440
01441
01442 if (src == original_src_head && src->IsEngine() && !src->IsFrontEngine()) {
01443
01444 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01445 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01446 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01447 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01448 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01449
01450
01451
01452
01453
01454
01455
01456
01457 if (dst_head != NULL ? dst_head != src : !src_head->IsFrontEngine()) {
01458 DecreaseGroupNumVehicle(src->group_id);
01459 }
01460
01461
01462
01463 DeleteVehicleOrders(src);
01464 RemoveVehicleFromGroup(src);
01465 src->unitnumber = 0;
01466 }
01467
01468
01469
01470 if (original_src_head != src && dst_head == src) {
01471 SetTrainGroupID(src, DEFAULT_GROUP);
01472 }
01473
01474
01475 NormaliseTrainHead(src_head);
01476 NormaliseTrainHead(dst_head);
01477
01478
01479 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01480 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01481 } else {
01482
01483 RestoreTrainBackup(original_src);
01484 RestoreTrainBackup(original_dst);
01485 }
01486
01487 return CommandCost();
01488 }
01489
01501 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01502 {
01503
01504 Window *w = NULL;
01505
01506 Train *v = Train::GetIfValid(p1);
01507 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
01508
01509
01510 bool sell_chain = HasBit(p2, 0);
01511
01512 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_SELL_DESTROYED_VEHICLE);
01513
01514 v = v->GetFirstEnginePart();
01515 Train *first = v->First();
01516
01517
01518 if (!first->IsStoppedInDepot()) {
01519 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01520 }
01521
01522 if (v->IsRearDualheaded()) return_cmd_error(STR_ERROR_REAR_ENGINE_FOLLOW_FRONT);
01523
01524
01525
01526 TrainList original;
01527 MakeTrainBackup(original, first);
01528
01529
01530 Train *new_head = first;
01531 Train *sell_head = NULL;
01532
01533
01534 ArrangeTrains(&sell_head, NULL, &new_head, v, sell_chain);
01535
01536
01537 CommandCost ret = ValidateTrains(NULL, NULL, first, new_head, (flags & DC_AUTOREPLACE) == 0);
01538 if (ret.Failed()) {
01539
01540 RestoreTrainBackup(original);
01541 return ret;
01542 }
01543
01544 CommandCost cost(EXPENSES_NEW_VEHICLES);
01545 for (Train *t = sell_head; t != NULL; t = t->Next()) cost.AddCost(-t->value);
01546
01547
01548 if (flags & DC_EXEC) {
01549
01550 NormaliseSubtypes(new_head);
01551
01552 if (v == first && v->IsEngine() && !sell_chain && new_head != NULL && new_head->IsFrontEngine()) {
01553
01554
01555 new_head->orders.list = first->orders.list;
01556 new_head->AddToShared(first);
01557 DeleteVehicleOrders(first);
01558
01559
01560 new_head->CopyVehicleConfigAndStatistics(first);
01561 IncreaseGroupNumVehicle(new_head->group_id);
01562
01563
01564 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_head);
01565 }
01566
01567
01568 NormaliseTrainHead(new_head);
01569
01570
01571 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01572 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01573
01574
01575 delete sell_head;
01576 } else {
01577
01578 RestoreTrainBackup(original);
01579 }
01580
01581 return cost;
01582 }
01583
01584 void Train::UpdateDeltaXY(Direction direction)
01585 {
01586 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01587 static const uint32 _delta_xy_table[8] = {
01588 MKIT(3, 3, -1, -1),
01589 MKIT(3, 7, -1, -3),
01590 MKIT(3, 3, -1, -1),
01591 MKIT(7, 3, -3, -1),
01592 MKIT(3, 3, -1, -1),
01593 MKIT(3, 7, -1, -3),
01594 MKIT(3, 3, -1, -1),
01595 MKIT(7, 3, -3, -1),
01596 };
01597 #undef MKIT
01598
01599 uint32 x = _delta_xy_table[direction];
01600 this->x_offs = GB(x, 0, 8);
01601 this->y_offs = GB(x, 8, 8);
01602 this->x_extent = GB(x, 16, 8);
01603 this->y_extent = GB(x, 24, 8);
01604 this->z_extent = 6;
01605 }
01606
01607 static inline void SetLastSpeed(Train *v, int spd)
01608 {
01609 int old = v->tcache.last_speed;
01610 if (spd != old) {
01611 v->tcache.last_speed = spd;
01612 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01613 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01614 }
01615 }
01616 }
01617
01619 static void MarkTrainAsStuck(Train *v)
01620 {
01621 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) {
01622
01623 SetBit(v->flags, VRF_TRAIN_STUCK);
01624
01625 v->wait_counter = 0;
01626
01627
01628 v->cur_speed = 0;
01629 v->subspeed = 0;
01630 SetLastSpeed(v, 0);
01631
01632 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01633 }
01634 }
01635
01636 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01637 {
01638 uint16 flag1 = *swap_flag1;
01639 uint16 flag2 = *swap_flag2;
01640
01641
01642 ClrBit(*swap_flag1, VRF_GOINGUP);
01643 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01644 ClrBit(*swap_flag2, VRF_GOINGUP);
01645 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01646
01647
01648 if (HasBit(flag1, VRF_GOINGUP)) {
01649 SetBit(*swap_flag2, VRF_GOINGDOWN);
01650 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01651 SetBit(*swap_flag2, VRF_GOINGUP);
01652 }
01653 if (HasBit(flag2, VRF_GOINGUP)) {
01654 SetBit(*swap_flag1, VRF_GOINGDOWN);
01655 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01656 SetBit(*swap_flag1, VRF_GOINGUP);
01657 }
01658 }
01659
01660 static void ReverseTrainSwapVeh(Train *v, int l, int r)
01661 {
01662 Train *a, *b;
01663
01664
01665 for (a = v; l != 0; l--) a = a->Next();
01666 for (b = v; r != 0; r--) b = b->Next();
01667
01668 if (a != b) {
01669
01670 {
01671 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01672 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01673 a->vehstatus = tmp;
01674 }
01675
01676 Swap(a->track, b->track);
01677 Swap(a->direction, b->direction);
01678
01679
01680 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01681 if (b->track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01682
01683 Swap(a->x_pos, b->x_pos);
01684 Swap(a->y_pos, b->y_pos);
01685 Swap(a->tile, b->tile);
01686 Swap(a->z_pos, b->z_pos);
01687
01688 SwapTrainFlags(&a->flags, &b->flags);
01689
01690
01691 a->UpdateViewport(true, true);
01692 b->UpdateViewport(true, true);
01693
01694
01695 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01696 if (b->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01697 } else {
01698 if (a->track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01699 a->UpdateViewport(true, true);
01700
01701 if (a->track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01702 }
01703
01704
01705 v->RailtypeChanged();
01706 }
01707
01708
01714 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01715 {
01716 return (v->type == VEH_TRAIN) ? v : NULL;
01717 }
01718
01719
01726 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01727 {
01728 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
01729
01730 Train *t = Train::From(v);
01731 if (!t->IsFrontEngine()) return NULL;
01732
01733 TileIndex tile = *(TileIndex *)data;
01734
01735 if (TrainApproachingCrossingTile(t) != tile) return NULL;
01736
01737 return t;
01738 }
01739
01740
01747 static bool TrainApproachingCrossing(TileIndex tile)
01748 {
01749 assert(IsLevelCrossingTile(tile));
01750
01751 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01752 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01753
01754 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01755
01756 dir = ReverseDiagDir(dir);
01757 tile_from = tile + TileOffsByDiagDir(dir);
01758
01759 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01760 }
01761
01762
01769 void UpdateLevelCrossing(TileIndex tile, bool sound)
01770 {
01771 assert(IsLevelCrossingTile(tile));
01772
01773
01774 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || HasCrossingReservation(tile);
01775
01776 if (new_state != IsCrossingBarred(tile)) {
01777 if (new_state && sound) {
01778 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01779 }
01780 SetCrossingBarred(tile, new_state);
01781 MarkTileDirtyByTile(tile);
01782 }
01783 }
01784
01785
01791 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01792 {
01793 if (!IsCrossingBarred(tile)) {
01794 BarCrossing(tile);
01795 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01796 MarkTileDirtyByTile(tile);
01797 }
01798 }
01799
01800
01806 static void AdvanceWagonsBeforeSwap(Train *v)
01807 {
01808 Train *base = v;
01809 Train *first = base;
01810 Train *last = v->Last();
01811 uint length = CountVehiclesInChain(v);
01812
01813 while (length > 2) {
01814 last = last->Previous();
01815 first = first->Next();
01816
01817 int differential = base->tcache.cached_veh_length - last->tcache.cached_veh_length;
01818
01819
01820
01821 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01822
01823 base = first;
01824 length -= 2;
01825 }
01826 }
01827
01828
01834 static void AdvanceWagonsAfterSwap(Train *v)
01835 {
01836
01837 Train *dep = v;
01838 while (dep->Next() != NULL && (dep->track == TRACK_BIT_DEPOT || dep->Next()->track != TRACK_BIT_DEPOT)) {
01839 dep = dep->Next();
01840 }
01841
01842 Train *leave = dep->Next();
01843
01844 if (leave != NULL) {
01845
01846 int d = TicksToLeaveDepot(dep);
01847
01848 if (d <= 0) {
01849 leave->vehstatus &= ~VS_HIDDEN;
01850 leave->track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01851 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01852 }
01853 } else {
01854 dep = NULL;
01855 }
01856
01857 Train *base = v;
01858 Train *first = base;
01859 Train *last = v->Last();
01860 uint length = CountVehiclesInChain(v);
01861
01862
01863
01864 bool nomove = (dep == NULL);
01865
01866 while (length > 2) {
01867
01868
01869 if (base == dep) break;
01870
01871
01872 if (last == dep) nomove = true;
01873
01874 last = last->Previous();
01875 first = first->Next();
01876
01877 int differential = last->tcache.cached_veh_length - base->tcache.cached_veh_length;
01878
01879
01880 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01881
01882 base = first;
01883 length -= 2;
01884 }
01885 }
01886
01887
01888 static void ReverseTrainDirection(Train *v)
01889 {
01890 if (IsRailDepotTile(v->tile)) {
01891 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01892 }
01893
01894
01895 if (!HasBit(v->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01896
01897
01898 TileIndex crossing = TrainApproachingCrossingTile(v);
01899
01900
01901 int r = CountVehiclesInChain(v) - 1;
01902
01903 AdvanceWagonsBeforeSwap(v);
01904
01905
01906 int l = 0;
01907 do {
01908 ReverseTrainSwapVeh(v, l++, r--);
01909 } while (l <= r);
01910
01911 AdvanceWagonsAfterSwap(v);
01912
01913 if (IsRailDepotTile(v->tile)) {
01914 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01915 }
01916
01917 ToggleBit(v->flags, VRF_TOGGLE_REVERSE);
01918
01919 ClrBit(v->flags, VRF_REVERSING);
01920
01921
01922 v->ConsistChanged(true);
01923
01924
01925 for (Vehicle *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01926
01927
01928 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01929
01930
01931 crossing = TrainApproachingCrossingTile(v);
01932 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01933
01934
01935 if (v->track == TRACK_BIT_DEPOT) {
01936
01937 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01938 ClrBit(v->flags, VRF_TRAIN_STUCK);
01939 return;
01940 }
01941
01942
01943
01944 DiagDirection dir = TrainExitDir(v->direction, v->track);
01945 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01946
01947 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01948
01949
01950 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01951 HasSignalOnTrackdir(v->tile, v->GetVehicleTrackdir()) &&
01952 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->track))));
01953
01954 if (IsRailStationTile(v->tile)) SetRailStationPlatformReservation(v->tile, TrackdirToExitdir(v->GetVehicleTrackdir()), true);
01955 if (TryPathReserve(v, false, first_tile_okay)) {
01956
01957 CheckNextTrainTile(v);
01958 } else if (v->current_order.GetType() != OT_LOADING) {
01959
01960 MarkTrainAsStuck(v);
01961 }
01962 } else if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
01963
01964 ClrBit(v->flags, VRF_TRAIN_STUCK);
01965 v->wait_counter = 0;
01966 }
01967 }
01968
01977 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01978 {
01979 Train *v = Train::GetIfValid(p1);
01980 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
01981
01982 if (p2 != 0) {
01983
01984
01985 if (v->IsMultiheaded() || HasBit(EngInfo(v->engine_type)->callback_mask, CBM_VEHICLE_ARTIC_ENGINE)) {
01986 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01987 }
01988
01989 Train *front = v->First();
01990
01991 if (!front->IsStoppedInDepot()) {
01992 return_cmd_error(STR_ERROR_TRAINS_CAN_ONLY_BE_ALTERED_INSIDE_A_DEPOT);
01993 }
01994
01995 if (flags & DC_EXEC) {
01996 ToggleBit(v->flags, VRF_REVERSE_DIRECTION);
01997 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
01998 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
01999
02000 v->force_proceed = 0;
02001 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02002 }
02003 } else {
02004
02005 if ((v->vehstatus & VS_CRASHED) || v->breakdown_ctr != 0) return CMD_ERROR;
02006
02007 if (flags & DC_EXEC) {
02008
02009 if (v->current_order.IsType(OT_LOADING)) {
02010 const Vehicle *last = v;
02011 while (last->Next() != NULL) last = last->Next();
02012
02013
02014 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
02015 v->LeaveStation();
02016 }
02017 }
02018
02019
02020 v->force_proceed = 0;
02021 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
02022
02023 if (_settings_game.vehicle.train_acceleration_model != AM_ORIGINAL && v->cur_speed != 0) {
02024 ToggleBit(v->flags, VRF_REVERSING);
02025 } else {
02026 v->cur_speed = 0;
02027 SetLastSpeed(v, 0);
02028 HideFillingPercent(&v->fill_percent_te_id);
02029 ReverseTrainDirection(v);
02030 }
02031 }
02032 }
02033 return CommandCost();
02034 }
02035
02044 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02045 {
02046 Train *t = Train::GetIfValid(p1);
02047 if (t == NULL || !CheckOwnership(t->owner)) return CMD_ERROR;
02048
02049 if (flags & DC_EXEC) {
02050
02051
02052
02053
02054
02055 t->force_proceed = t->force_proceed == 2 ? 0 : HasBit(t->flags, VRF_TRAIN_STUCK) || t->IsInDepot() ? 1 : 2;
02056 SetWindowDirty(WC_VEHICLE_VIEW, t->index);
02057 }
02058
02059 return CommandCost();
02060 }
02061
02073 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02074 {
02075 CargoID new_cid = GB(p2, 0, 8);
02076 byte new_subtype = GB(p2, 8, 8);
02077 bool only_this = HasBit(p2, 16);
02078
02079 Train *v = Train::GetIfValid(p1);
02080 if (v == NULL || !CheckOwnership(v->owner)) return CMD_ERROR;
02081
02082 if (!v->IsStoppedInDepot()) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02083 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_ERROR_CAN_T_REFIT_DESTROYED_VEHICLE);
02084
02085
02086 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02087
02088 CommandCost cost = RefitVehicle(v, only_this, new_cid, new_subtype, flags);
02089
02090
02091 if (flags & DC_EXEC) {
02092 Train *front = v->First();
02093 front->ConsistChanged(false);
02094 SetWindowDirty(WC_VEHICLE_DETAILS, front->index);
02095 SetWindowDirty(WC_VEHICLE_DEPOT, front->tile);
02096 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02097 } else {
02098 v->InvalidateNewGRFCacheOfChain();
02099 }
02100
02101 return cost;
02102 }
02103
02106 static FindDepotData FindClosestTrainDepot(Train *v, int max_distance)
02107 {
02108 assert(!(v->vehstatus & VS_CRASHED));
02109
02110 if (IsRailDepotTile(v->tile)) return FindDepotData(v->tile, 0);
02111
02112 PBSTileInfo origin = FollowTrainReservation(v);
02113 if (IsRailDepotTile(origin.tile)) return FindDepotData(origin.tile, 0);
02114
02115 switch (_settings_game.pf.pathfinder_for_trains) {
02116 case VPF_NPF: return NPFTrainFindNearestDepot(v, max_distance);
02117 case VPF_YAPF: return YapfTrainFindNearestDepot(v, max_distance);
02118
02119 default: NOT_REACHED();
02120 }
02121 }
02122
02123 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02124 {
02125 FindDepotData tfdd = FindClosestTrainDepot(this, 0);
02126 if (tfdd.best_length == UINT_MAX) return false;
02127
02128 if (location != NULL) *location = tfdd.tile;
02129 if (destination != NULL) *destination = GetDepotIndex(tfdd.tile);
02130 if (reverse != NULL) *reverse = tfdd.reverse;
02131
02132 return true;
02133 }
02134
02145 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02146 {
02147 if (p2 & DEPOT_MASS_SEND) {
02148
02149 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02150 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02151 }
02152
02153 Train *v = Train::GetIfValid(p1);
02154 if (v == NULL) return CMD_ERROR;
02155
02156 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02157 }
02158
02159 static const int8 _vehicle_smoke_pos[8] = {
02160 1, 1, 1, 0, -1, -1, -1, 0
02161 };
02162
02163 static void HandleLocomotiveSmokeCloud(const Train *v)
02164 {
02165 bool sound = false;
02166
02167 if ((v->vehstatus & VS_TRAIN_SLOWING) || v->cur_speed < 2) {
02168 return;
02169 }
02170
02171 const Train *u = v;
02172
02173 do {
02174 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02175 int effect_offset = GB(v->tcache.cached_vis_effect, 0, 4) - 8;
02176 byte effect_type = GB(v->tcache.cached_vis_effect, 4, 2);
02177 bool disable_effect = HasBit(v->tcache.cached_vis_effect, 6);
02178
02179
02180 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02181 disable_effect ||
02182 v->vehstatus & VS_HIDDEN) {
02183 continue;
02184 }
02185
02186
02187 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02188
02189
02190 if (!HasPowerOnRail(v->railtype, GetTileRailType(v->tile))) continue;
02191
02192 if (effect_type == 0) {
02193
02194 effect_type = rvi->engclass;
02195 } else {
02196 effect_type--;
02197 }
02198
02199 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02200 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02201
02202 if (HasBit(v->flags, VRF_REVERSE_DIRECTION)) {
02203 x = -x;
02204 y = -y;
02205 }
02206
02207 switch (effect_type) {
02208 case 0:
02209
02210 if (GB(v->tick_counter, 0, 4) == 0) {
02211 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02212 sound = true;
02213 }
02214 break;
02215
02216 case 1:
02217
02218 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02219 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02220 sound = true;
02221 }
02222 break;
02223
02224 case 2:
02225
02226 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02227 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02228 sound = true;
02229 }
02230 break;
02231
02232 default:
02233 break;
02234 }
02235 } while ((v = v->Next()) != NULL);
02236
02237 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02238 }
02239
02240 void Train::PlayLeaveStationSound() const
02241 {
02242 static const SoundFx sfx[] = {
02243 SND_04_TRAIN,
02244 SND_0A_TRAIN_HORN,
02245 SND_0A_TRAIN_HORN,
02246 SND_47_MAGLEV_2,
02247 SND_41_MAGLEV
02248 };
02249
02250 if (PlayVehicleSound(this, VSE_START)) return;
02251
02252 EngineID engtype = this->engine_type;
02253 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02254 }
02255
02257 static void CheckNextTrainTile(Train *v)
02258 {
02259
02260 if (_settings_game.pf.path_backoff_interval == 255) return;
02261
02262
02263 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->track == TRACK_BIT_DEPOT) return;
02264
02265 if (IsRailStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02266
02267 if (v->current_order.IsType(OT_GOTO_WAYPOINT) && IsRailWaypointTile(v->tile) && GetStationIndex(v->tile) == v->current_order.GetDestination()) ProcessOrders(v);
02268
02269 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02270
02271 Trackdir td = v->GetVehicleTrackdir();
02272
02273
02274 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02275 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02276 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02277
02278 CFollowTrackRail ft(v);
02279 if (!ft.Follow(v->tile, td)) return;
02280
02281 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02282
02283 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02284 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02285
02286 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02287 if (_settings_game.pf.forbid_90_deg) {
02288 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02289 }
02290 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02291 }
02292 }
02293 }
02294 }
02295
02296 static bool CheckTrainStayInDepot(Train *v)
02297 {
02298
02299 for (const Train *u = v; u != NULL; u = u->Next()) {
02300 if (u->track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02301 }
02302
02303
02304 if (v->tcache.cached_power == 0) {
02305 v->vehstatus |= VS_STOPPED;
02306 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
02307 return true;
02308 }
02309
02310 SigSegState seg_state;
02311
02312 if (v->force_proceed == 0) {
02313
02314 if (++v->wait_counter < 37) {
02315 SetWindowClassesDirty(WC_TRAINS_LIST);
02316 return true;
02317 }
02318
02319 v->wait_counter = 0;
02320
02321 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02322 if (seg_state == SIGSEG_FULL || HasDepotReservation(v->tile)) {
02323
02324 SetWindowClassesDirty(WC_TRAINS_LIST);
02325 return true;
02326 }
02327 } else {
02328 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02329 }
02330
02331
02332 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02333
02334 if (HasDepotReservation(v->tile)) return true;
02335 SetDepotReservation(v->tile, true);
02336 VehicleEnterDepot(v);
02337 return true;
02338 }
02339
02340
02341 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->force_proceed == 0) {
02342
02343 SetWindowClassesDirty(WC_TRAINS_LIST);
02344 MarkTrainAsStuck(v);
02345 return true;
02346 }
02347
02348 SetDepotReservation(v->tile, true);
02349 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02350
02351 VehicleServiceInDepot(v);
02352 SetWindowClassesDirty(WC_TRAINS_LIST);
02353 v->PlayLeaveStationSound();
02354
02355 v->track = TRACK_BIT_X;
02356 if (v->direction & 2) v->track = TRACK_BIT_Y;
02357
02358 v->vehstatus &= ~VS_HIDDEN;
02359 v->cur_speed = 0;
02360
02361 v->UpdateDeltaXY(v->direction);
02362 v->cur_image = v->GetImage(v->direction);
02363 VehicleMove(v, false);
02364 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02365 v->UpdateAcceleration();
02366 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02367
02368 return false;
02369 }
02370
02372 static void ClearPathReservation(const Train *v, TileIndex tile, Trackdir track_dir)
02373 {
02374 DiagDirection dir = TrackdirToExitdir(track_dir);
02375
02376 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02377
02378 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02379 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02380
02381 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02382
02383 SetTunnelBridgeReservation(tile, false);
02384 SetTunnelBridgeReservation(end, false);
02385
02386 if (_settings_client.gui.show_track_reservation) {
02387 MarkTileDirtyByTile(tile);
02388 MarkTileDirtyByTile(end);
02389 }
02390 }
02391 }
02392 } else if (IsRailStationTile(tile)) {
02393 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02394
02395
02396 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02397 SetRailStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02398 }
02399 } else {
02400
02401 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02402 }
02403 }
02404
02406 void FreeTrainTrackReservation(const Train *v, TileIndex origin, Trackdir orig_td)
02407 {
02408 assert(v->IsFrontEngine());
02409
02410 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02411 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : v->GetVehicleTrackdir();
02412 bool free_tile = tile != v->tile || !(IsRailStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02413 StationID station_id = IsRailStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02414
02415
02416 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02417
02418 CFollowTrackRail ft(v, GetRailTypeInfo(v->railtype)->compatible_railtypes);
02419 while (ft.Follow(tile, td)) {
02420 tile = ft.m_new_tile;
02421 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02422 td = RemoveFirstTrackdir(&bits);
02423 assert(bits == TRACKDIR_BIT_NONE);
02424
02425 if (!IsValidTrackdir(td)) break;
02426
02427 if (IsTileType(tile, MP_RAILWAY)) {
02428 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02429
02430 UnreserveRailTrack(tile, TrackdirToTrack(td));
02431 break;
02432 }
02433 if (HasPbsSignalOnTrackdir(tile, td)) {
02434 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02435
02436 break;
02437 } else {
02438
02439 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02440 MarkTileDirtyByTile(tile);
02441 }
02442 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02443 break;
02444 }
02445 }
02446
02447
02448 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);
02449
02450 free_tile = true;
02451 }
02452 }
02453
02454 static const byte _initial_tile_subcoord[6][4][3] = {
02455 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02456 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02457 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02458 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02459 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02460 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02461 };
02462
02475 static Track DoTrainPathfind(const Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02476 {
02477 switch (_settings_game.pf.pathfinder_for_trains) {
02478 case VPF_NPF: return NPFTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02479 case VPF_YAPF: return YapfTrainChooseTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02480
02481 default: NOT_REACHED();
02482 }
02483 }
02484
02490 static PBSTileInfo ExtendTrainReservation(const Train *v, TrackBits *new_tracks, DiagDirection *enterdir)
02491 {
02492 PBSTileInfo origin = FollowTrainReservation(v);
02493
02494 CFollowTrackRail ft(v);
02495
02496 TileIndex tile = origin.tile;
02497 Trackdir cur_td = origin.trackdir;
02498 while (ft.Follow(tile, cur_td)) {
02499 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02500
02501 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02502 }
02503
02504 if (_settings_game.pf.forbid_90_deg) {
02505 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02506 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02507 }
02508
02509
02510 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02511 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02512
02513
02514
02515
02516
02517
02518 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02519
02520
02521
02522 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02523
02524
02525 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02526 if (enterdir) *enterdir = ft.m_exitdir;
02527 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02528 }
02529
02530 tile = ft.m_new_tile;
02531 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02532
02533 if (IsSafeWaitingPosition(v, tile, cur_td, true, _settings_game.pf.forbid_90_deg)) {
02534 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, _settings_game.pf.forbid_90_deg);
02535 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02536
02537 return PBSTileInfo(tile, cur_td, true);
02538 }
02539
02540 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02541 }
02542
02543 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02544
02545 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02546 }
02547
02548
02549 tile = origin.tile;
02550 cur_td = origin.trackdir;
02551 TileIndex stopped = ft.m_old_tile;
02552 Trackdir stopped_td = ft.m_old_td;
02553 while (tile != stopped || cur_td != stopped_td) {
02554 if (!ft.Follow(tile, cur_td)) break;
02555
02556 if (_settings_game.pf.forbid_90_deg) {
02557 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02558 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02559 }
02560 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02561
02562 tile = ft.m_new_tile;
02563 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02564
02565 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02566 }
02567
02568
02569 return PBSTileInfo();
02570 }
02571
02582 static bool TryReserveSafeTrack(const Train *v, TileIndex tile, Trackdir td, bool override_tailtype)
02583 {
02584 switch (_settings_game.pf.pathfinder_for_trains) {
02585 case VPF_NPF: return NPFTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02586 case VPF_YAPF: return YapfTrainFindNearestSafeTile(v, tile, td, override_tailtype);
02587
02588 default: NOT_REACHED();
02589 }
02590 }
02591
02593 class VehicleOrderSaver
02594 {
02595 private:
02596 Vehicle *v;
02597 Order old_order;
02598 TileIndex old_dest_tile;
02599 StationID old_last_station_visited;
02600 VehicleOrderID index;
02601
02602 public:
02603 VehicleOrderSaver(Vehicle *_v) :
02604 v(_v),
02605 old_order(_v->current_order),
02606 old_dest_tile(_v->dest_tile),
02607 old_last_station_visited(_v->last_station_visited),
02608 index(_v->cur_order_index)
02609 {
02610 }
02611
02612 ~VehicleOrderSaver()
02613 {
02614 this->v->current_order = this->old_order;
02615 this->v->dest_tile = this->old_dest_tile;
02616 this->v->last_station_visited = this->old_last_station_visited;
02617 }
02618
02624 bool SwitchToNextOrder(bool skip_first)
02625 {
02626 if (this->v->GetNumOrders() == 0) return false;
02627
02628 if (skip_first) ++this->index;
02629
02630 int conditional_depth = 0;
02631
02632 do {
02633
02634 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02635
02636 Order *order = this->v->GetOrder(this->index);
02637 assert(order != NULL);
02638
02639 switch (order->GetType()) {
02640 case OT_GOTO_DEPOT:
02641
02642 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02643 case OT_GOTO_STATION:
02644 case OT_GOTO_WAYPOINT:
02645 this->v->current_order = *order;
02646 UpdateOrderDest(this->v, order);
02647 return true;
02648 case OT_CONDITIONAL: {
02649 if (conditional_depth > this->v->GetNumOrders()) return false;
02650 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02651 if (next != INVALID_VEH_ORDER_ID) {
02652 conditional_depth++;
02653 this->index = next;
02654
02655 continue;
02656 }
02657 break;
02658 }
02659 default:
02660 break;
02661 }
02662
02663
02664 ++this->index;
02665 } while (this->index != this->v->cur_order_index);
02666
02667 return false;
02668 }
02669 };
02670
02671
02672 static Track ChooseTrainTrack(Train *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02673 {
02674 Track best_track = INVALID_TRACK;
02675 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02676 bool changed_signal = false;
02677
02678 assert((tracks & ~TRACK_BIT_MASK) == 0);
02679
02680 if (got_reservation != NULL) *got_reservation = false;
02681
02682
02683 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02684
02685 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02686
02687
02688 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02689 Track track = FindFirstTrack(tracks);
02690
02691 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02692 do_track_reservation = true;
02693 changed_signal = true;
02694 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02695 } else if (!do_track_reservation) {
02696 return track;
02697 }
02698 best_track = track;
02699 }
02700
02701 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02702 DiagDirection dest_enterdir = enterdir;
02703 if (do_track_reservation) {
02704
02705
02706
02707 CheckIfTrainNeedsService(v);
02708 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02709
02710 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02711 if (res_dest.tile == INVALID_TILE) {
02712
02713 if (mark_stuck) MarkTrainAsStuck(v);
02714 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02715 return FindFirstTrack(tracks);
02716 }
02717 }
02718
02719
02720 VehicleOrderSaver orders(v);
02721
02722
02723
02724
02725
02726
02727
02728 if (v->current_order.IsType(OT_LEAVESTATION)) {
02729 orders.SwitchToNextOrder(false);
02730 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02731 v->current_order.IsType(OT_GOTO_STATION) ?
02732 IsRailStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02733 v->tile == v->dest_tile))) {
02734 orders.SwitchToNextOrder(true);
02735 }
02736
02737 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02738
02739 bool path_not_found = false;
02740 TileIndex new_tile = res_dest.tile;
02741
02742 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02743 if (new_tile == tile) best_track = next_track;
02744
02745
02746 if (path_not_found) {
02747
02748 if (!HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02749
02750 SetBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02751
02752 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02753 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02754 SetDParam(0, v->index);
02755 AddVehicleNewsItem(
02756 STR_NEWS_TRAIN_IS_LOST,
02757 NS_ADVICE,
02758 v->index
02759 );
02760 }
02761 }
02762 } else {
02763
02764 if (HasBit(v->flags, VRF_NO_PATH_TO_DESTINATION)) {
02765
02766 ClrBit(v->flags, VRF_NO_PATH_TO_DESTINATION);
02767
02768 }
02769 }
02770 }
02771
02772
02773 if (!do_track_reservation) return best_track;
02774
02775
02776 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02777 if (mark_stuck) MarkTrainAsStuck(v);
02778 FreeTrainTrackReservation(v);
02779 return best_track;
02780 }
02781
02782
02783 if (res_dest.tile == INVALID_TILE) {
02784
02785 PBSTileInfo origin = FollowTrainReservation(v);
02786 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02787 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02788 best_track = FindFirstTrack(res);
02789 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02790 if (got_reservation != NULL) *got_reservation = true;
02791 if (changed_signal) MarkTileDirtyByTile(tile);
02792 } else {
02793 FreeTrainTrackReservation(v);
02794 if (mark_stuck) MarkTrainAsStuck(v);
02795 }
02796 return best_track;
02797 }
02798
02799 if (got_reservation != NULL) *got_reservation = true;
02800
02801
02802 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02803
02804 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02805 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02806 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02807 if (_settings_game.pf.forbid_90_deg) {
02808 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02809 }
02810
02811
02812 if (orders.SwitchToNextOrder(true)) {
02813 PBSTileInfo cur_dest;
02814 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
02815 if (cur_dest.tile != INVALID_TILE) {
02816 res_dest = cur_dest;
02817 if (res_dest.okay) continue;
02818
02819 FreeTrainTrackReservation(v);
02820 if (mark_stuck) MarkTrainAsStuck(v);
02821 if (got_reservation != NULL) *got_reservation = false;
02822 changed_signal = false;
02823 break;
02824 }
02825 }
02826
02827 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
02828 FreeTrainTrackReservation(v);
02829 if (mark_stuck) MarkTrainAsStuck(v);
02830 if (got_reservation != NULL) *got_reservation = false;
02831 changed_signal = false;
02832 }
02833 break;
02834 }
02835
02836 TryReserveRailTrack(v->tile, TrackdirToTrack(v->GetVehicleTrackdir()));
02837
02838 if (changed_signal) MarkTileDirtyByTile(tile);
02839
02840 return best_track;
02841 }
02842
02851 bool TryPathReserve(Train *v, bool mark_as_stuck, bool first_tile_okay)
02852 {
02853 assert(v->IsFrontEngine());
02854
02855
02856
02857
02858 if (v->track == TRACK_BIT_DEPOT) {
02859 if (HasDepotReservation(v->tile)) {
02860 if (mark_as_stuck) MarkTrainAsStuck(v);
02861 return false;
02862 } else {
02863
02864 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
02865 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
02866 }
02867 }
02868
02869 Vehicle *other_train = NULL;
02870 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
02871
02872
02873
02874
02875
02876 if (other_train != NULL && other_train->index != v->index) {
02877 if (mark_as_stuck) MarkTrainAsStuck(v);
02878 return false;
02879 }
02880
02881 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
02882
02883 if (HasBit(v->flags, VRF_TRAIN_STUCK)) SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02884 ClrBit(v->flags, VRF_TRAIN_STUCK);
02885 return true;
02886 }
02887
02888
02889 if (v->track == TRACK_BIT_DEPOT) {
02890 SetDepotReservation(v->tile, true);
02891 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02892 }
02893
02894 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
02895 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
02896 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
02897
02898 if (_settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
02899
02900 bool res_made = false;
02901 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
02902
02903 if (!res_made) {
02904
02905 if (v->track == TRACK_BIT_DEPOT) SetDepotReservation(v->tile, false);
02906 return false;
02907 }
02908
02909 if (HasBit(v->flags, VRF_TRAIN_STUCK)) {
02910 v->wait_counter = 0;
02911 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02912 }
02913 ClrBit(v->flags, VRF_TRAIN_STUCK);
02914 return true;
02915 }
02916
02917
02918 static bool CheckReverseTrain(const Train *v)
02919 {
02920 if (_settings_game.difficulty.line_reverse_mode != 0 ||
02921 v->track == TRACK_BIT_DEPOT || v->track == TRACK_BIT_WORMHOLE ||
02922 !(v->direction & 1)) {
02923 return false;
02924 }
02925
02926 assert(v->track != TRACK_BIT_NONE);
02927
02928 switch (_settings_game.pf.pathfinder_for_trains) {
02929 case VPF_NPF: return NPFTrainCheckReverse(v);
02930 case VPF_YAPF: return YapfTrainCheckReverse(v);
02931
02932 default: NOT_REACHED();
02933 }
02934 }
02935
02936 TileIndex Train::GetOrderStationLocation(StationID station)
02937 {
02938 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
02939
02940 const Station *st = Station::Get(station);
02941 if (!(st->facilities & FACIL_TRAIN)) {
02942
02943 this->IncrementOrderIndex();
02944 return 0;
02945 }
02946
02947 return st->xy;
02948 }
02949
02950 void Train::MarkDirty()
02951 {
02952 Vehicle *v = this;
02953 do {
02954 v->UpdateViewport(false, false);
02955 } while ((v = v->Next()) != NULL);
02956
02957
02958 this->CargoChanged();
02959 this->UpdateAcceleration();
02960 }
02961
02971 int Train::UpdateSpeed()
02972 {
02973 uint accel;
02974
02975 switch (_settings_game.vehicle.train_acceleration_model) {
02976 default: NOT_REACHED();
02977 case AM_ORIGINAL:
02978 accel = this->acceleration * (this->GetAccelerationStatus() == AS_BRAKE ? -4 : 2);
02979 break;
02980 case AM_REALISTIC:
02981 this->max_speed = this->GetCurrentMaxSpeed();
02982 accel = this->GetAcceleration();
02983 break;
02984 }
02985
02986 uint spd = this->subspeed + accel;
02987 this->subspeed = (byte)spd;
02988 {
02989 int tempmax = this->max_speed;
02990 if (this->cur_speed > this->max_speed)
02991 tempmax = this->cur_speed - (this->cur_speed / 10) - 1;
02992 this->cur_speed = spd = Clamp(this->cur_speed + ((int)spd >> 8), 0, tempmax);
02993 }
02994
02995
02996
02997
02998
02999
03000
03001
03002
03003
03004
03005
03006 int scaled_spd = spd * 3 >> 2;
03007
03008 scaled_spd += this->progress;
03009 this->progress = 0;
03010 return scaled_spd;
03011 }
03012
03013 static void TrainEnterStation(Train *v, StationID station)
03014 {
03015 v->last_station_visited = station;
03016
03017
03018 Station *st = Station::Get(station);
03019 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
03020 st->had_vehicle_of_type |= HVOT_TRAIN;
03021 SetDParam(0, st->index);
03022 AddVehicleNewsItem(
03023 STR_NEWS_FIRST_TRAIN_ARRIVAL,
03024 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
03025 v->index,
03026 st->index
03027 );
03028 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
03029 }
03030
03031 v->force_proceed = 0;
03032 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03033
03034 v->BeginLoading();
03035
03036 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03037 }
03038
03039 static byte AfterSetTrainPos(Train *v, bool new_tile)
03040 {
03041 byte old_z = v->z_pos;
03042 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03043
03044 if (new_tile) {
03045 ClrBit(v->flags, VRF_GOINGUP);
03046 ClrBit(v->flags, VRF_GOINGDOWN);
03047
03048 if (v->track == TRACK_BIT_X || v->track == TRACK_BIT_Y) {
03049
03050
03051
03052
03053
03054 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03055 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03056
03057 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03058
03059 if (middle_z != v->z_pos) {
03060 SetBit(v->flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03061 }
03062 }
03063 }
03064
03065 VehicleMove(v, true);
03066 return old_z;
03067 }
03068
03069
03070 static inline bool CheckCompatibleRail(const Train *v, TileIndex tile)
03071 {
03072 return
03073 IsTileOwner(tile, v->owner) && (
03074 !v->IsFrontEngine() ||
03075 HasBit(v->compatible_railtypes, GetRailType(tile))
03076 );
03077 }
03078
03079 struct RailtypeSlowdownParams {
03080 byte small_turn, large_turn;
03081 byte z_up;
03082 byte z_down;
03083 };
03084
03085 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03086
03087 {256 / 4, 256 / 2, 256 / 4, 2},
03088 {256 / 4, 256 / 2, 256 / 4, 2},
03089 {256 / 4, 256 / 2, 256 / 4, 2},
03090 {0, 256 / 2, 256 / 4, 2},
03091 };
03092
03094 static inline void AffectSpeedByZChange(Train *v, byte old_z)
03095 {
03096 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != AM_ORIGINAL) return;
03097
03098 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03099
03100 if (old_z < v->z_pos) {
03101 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03102 } else {
03103 uint16 spd = v->cur_speed + rsp->z_down;
03104 if (spd <= v->max_speed) v->cur_speed = spd;
03105 }
03106 }
03107
03108 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03109 {
03110 if (IsTileType(tile, MP_RAILWAY) &&
03111 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03112 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03113 Trackdir trackdir = FindFirstTrackdir(tracks);
03114 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03115
03116 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03117 }
03118 }
03119 return false;
03120 }
03121
03125 void Train::ReserveTrackUnderConsist() const
03126 {
03127 for (const Train *u = this; u != NULL; u = u->Next()) {
03128 switch (u->track) {
03129 case TRACK_BIT_WORMHOLE:
03130 TryReserveRailTrack(u->tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(u->tile)));
03131 break;
03132 case TRACK_BIT_DEPOT:
03133 break;
03134 default:
03135 TryReserveRailTrack(u->tile, TrackBitsToTrack(u->track));
03136 break;
03137 }
03138 }
03139 }
03140
03141 uint Train::Crash(bool flooded)
03142 {
03143 uint pass = 0;
03144 if (this->IsFrontEngine()) {
03145 pass += 4;
03146
03147
03148
03149 if (!HasBit(this->flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(this);
03150 for (const Train *v = this; v != NULL; v = v->Next()) {
03151 ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03152 if (IsTileType(v->tile, MP_TUNNELBRIDGE)) {
03153
03154
03155 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(v->tile), false);
03156 }
03157 }
03158
03159
03160
03161 TileIndex crossing = TrainApproachingCrossingTile(this);
03162 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03163
03164
03165 HideFillingPercent(&this->fill_percent_te_id);
03166 }
03167
03168 pass += Vehicle::Crash(flooded);
03169
03170 this->crash_anim_pos = flooded ? 4000 : 1;
03171 return pass;
03172 }
03173
03180 static uint TrainCrashed(Train *v)
03181 {
03182 uint num = 0;
03183
03184
03185 if (!(v->vehstatus & VS_CRASHED)) {
03186 num = v->Crash();
03187 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03188 }
03189
03190
03191
03192 v->ReserveTrackUnderConsist();
03193
03194 return num;
03195 }
03196
03197 struct TrainCollideChecker {
03198 Train *v;
03199 uint num;
03200 };
03201
03202 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03203 {
03204 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03205
03206
03207 if (v->type != VEH_TRAIN || Train::From(v)->track == TRACK_BIT_DEPOT) return NULL;
03208
03209
03210 if (v->owner != tcc->v->owner) return NULL;
03211
03212
03213 Train *coll = Train::From(v)->First();
03214
03215
03216 if (coll == tcc->v) return NULL;
03217
03218 int x_diff = v->x_pos - tcc->v->x_pos;
03219 int y_diff = v->y_pos - tcc->v->y_pos;
03220
03221
03222
03223
03224
03225 uint hash = (y_diff + 7) | (x_diff + 7);
03226 if (hash & ~15) return NULL;
03227
03228
03229 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03230
03231
03232 if (abs(v->z_pos - tcc->v->z_pos) > 5) return NULL;
03233
03234
03235 tcc->num += TrainCrashed(tcc->v);
03236 tcc->num += TrainCrashed(coll);
03237
03238 return NULL;
03239 }
03240
03247 static bool CheckTrainCollision(Train *v)
03248 {
03249
03250 if (v->track == TRACK_BIT_DEPOT) return false;
03251
03252 assert(v->track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03253
03254 TrainCollideChecker tcc;
03255 tcc.v = v;
03256 tcc.num = 0;
03257
03258
03259 if (v->track == TRACK_BIT_WORMHOLE) {
03260 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03261 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03262 } else {
03263 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03264 }
03265
03266
03267 if (tcc.num == 0) return false;
03268
03269 SetDParam(0, tcc.num);
03270 AddVehicleNewsItem(STR_NEWS_TRAIN_CRASH,
03271 NS_ACCIDENT,
03272 v->index
03273 );
03274
03275 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03276 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03277 return true;
03278 }
03279
03280 static Vehicle *CheckTrainAtSignal(Vehicle *v, void *data)
03281 {
03282 if (v->type != VEH_TRAIN || (v->vehstatus & VS_CRASHED)) return NULL;
03283
03284 Train *t = Train::From(v);
03285 DiagDirection exitdir = *(DiagDirection *)data;
03286
03287
03288 if (!t->IsFrontEngine() || !(t->track & TRACK_BIT_MASK)) return NULL;
03289
03290 if (t->cur_speed > 5 || TrainExitDir(t->direction, t->track) != exitdir) return NULL;
03291
03292 return t;
03293 }
03294
03295 static void TrainController(Train *v, Vehicle *nomove)
03296 {
03297 Train *first = v->First();
03298 Train *prev;
03299 bool direction_changed = false;
03300
03301
03302 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03303 DiagDirection enterdir = DIAGDIR_BEGIN;
03304 bool update_signals_crossing = false;
03305
03306 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03307 if (v->track != TRACK_BIT_WORMHOLE) {
03308
03309 if (gp.old_tile == gp.new_tile) {
03310
03311 if (v->track == TRACK_BIT_DEPOT) {
03312
03313 gp.x = v->x_pos;
03314 gp.y = v->y_pos;
03315 } else {
03316
03317
03318
03319 if (v->IsFrontEngine() && !TrainCheckIfLineEnds(v)) return;
03320
03321 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03322 if (HasBit(r, VETS_CANNOT_ENTER)) {
03323 goto invalid_rail;
03324 }
03325 if (HasBit(r, VETS_ENTERED_STATION)) {
03326
03327 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03328 }
03329 }
03330 } else {
03331
03332
03333
03334 enterdir = DiagdirBetweenTiles(gp.old_tile, gp.new_tile);
03335 assert(IsValidDiagDirection(enterdir));
03336
03337
03338
03339 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03340 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03341
03342 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03343 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03344
03345 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03346 if (_settings_game.pf.forbid_90_deg && prev == NULL) {
03347
03348
03349 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03350 }
03351
03352 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03353
03354
03355
03356 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03357
03358 TrackBits chosen_track;
03359 if (prev == NULL) {
03360
03361
03362 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03363 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03364
03365 if (v->force_proceed != 0 && IsPlainRailTile(gp.new_tile) && HasSignals(gp.new_tile)) {
03366
03367
03368
03369
03370 Trackdir dir = FindFirstTrackdir(trackdirbits);
03371 if (GetSignalType(gp.new_tile, TrackdirToTrack(dir)) != SIGTYPE_PBS ||
03372 !HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(dir))) {
03373
03374
03375 v->force_proceed--;
03376 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03377 }
03378 }
03379
03380
03381 if ((red_signals & chosen_track) && v->force_proceed == 0) {
03382
03383 Trackdir i = FindFirstTrackdir(trackdirbits);
03384
03385
03386 if (HasBit(v->flags, VRF_TRAIN_STUCK)) return;
03387
03388 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03389 v->cur_speed = 0;
03390 v->subspeed = 0;
03391 v->progress = 255 - 100;
03392 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->wait_counter < _settings_game.pf.wait_oneway_signal * 20) return;
03393 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03394 v->cur_speed = 0;
03395 v->subspeed = 0;
03396 v->progress = 255 - 10;
03397 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->wait_counter < _settings_game.pf.wait_twoway_signal * 73) {
03398 DiagDirection exitdir = TrackdirToExitdir(i);
03399 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03400
03401 exitdir = ReverseDiagDir(exitdir);
03402
03403
03404 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckTrainAtSignal)) return;
03405 }
03406 }
03407
03408
03409
03410
03411
03412 if (_settings_game.pf.wait_for_pbs_path == 255 && !HasOnewaySignalBlockingTrackdir(gp.new_tile, i) &&
03413 UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03414 v->wait_counter = 0;
03415 return;
03416 }
03417 goto reverse_train_direction;
03418 } else {
03419 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03420 }
03421 } else {
03422
03423 if (prev->tile == gp.new_tile) {
03424
03425 if (prev->track == TRACK_BIT_WORMHOLE) {
03426
03427
03428 assert(IsTunnel(prev->tile));
03429 chosen_track = bits;
03430 } else {
03431 chosen_track = prev->track;
03432 }
03433 } else {
03434
03435
03436
03437
03438
03439
03440
03441 static const TrackBits _connecting_track[DIAGDIR_END][DIAGDIR_END] = {
03442 {TRACK_BIT_X, TRACK_BIT_LOWER, TRACK_BIT_NONE, TRACK_BIT_LEFT },
03443 {TRACK_BIT_UPPER, TRACK_BIT_Y, TRACK_BIT_LEFT, TRACK_BIT_NONE },
03444 {TRACK_BIT_NONE, TRACK_BIT_RIGHT, TRACK_BIT_X, TRACK_BIT_UPPER},
03445 {TRACK_BIT_RIGHT, TRACK_BIT_NONE, TRACK_BIT_LOWER, TRACK_BIT_Y }
03446 };
03447 DiagDirection exitdir = DiagdirBetweenTiles(gp.new_tile, prev->tile);
03448 assert(IsValidDiagDirection(exitdir));
03449 chosen_track = _connecting_track[enterdir][exitdir];
03450 }
03451 chosen_track &= bits;
03452 }
03453
03454
03455 assert(
03456 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03457 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03458 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03459
03460
03461 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03462 gp.x = (gp.x & ~0xF) | b[0];
03463 gp.y = (gp.y & ~0xF) | b[1];
03464 Direction chosen_dir = (Direction)b[2];
03465
03466
03467 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03468 if (HasBit(r, VETS_CANNOT_ENTER)) {
03469 goto invalid_rail;
03470 }
03471
03472 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03473 Track track = FindFirstTrack(chosen_track);
03474 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03475 if (v->IsFrontEngine() && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03476 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03477 MarkTileDirtyByTile(gp.new_tile);
03478 }
03479
03480
03481 if (v->Next() == NULL) ClearPathReservation(v, v->tile, v->GetVehicleTrackdir());
03482
03483 v->tile = gp.new_tile;
03484
03485 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03486 v->First()->RailtypeChanged();
03487 }
03488
03489 v->track = chosen_track;
03490 assert(v->track);
03491 }
03492
03493
03494
03495 update_signals_crossing = true;
03496
03497 if (chosen_dir != v->direction) {
03498 if (prev == NULL && _settings_game.vehicle.train_acceleration_model == AM_ORIGINAL) {
03499 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->railtype];
03500 DirDiff diff = DirDifference(v->direction, chosen_dir);
03501 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03502 }
03503 direction_changed = true;
03504 v->direction = chosen_dir;
03505 }
03506
03507 if (v->IsFrontEngine()) {
03508 v->wait_counter = 0;
03509
03510
03511 TileIndex crossing = TrainApproachingCrossingTile(v);
03512 if (crossing != INVALID_TILE && HasCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03513
03514
03515 CheckNextTrainTile(v);
03516 }
03517
03518 if (HasBit(r, VETS_ENTERED_STATION)) {
03519
03520 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03521 }
03522 }
03523 } else {
03524
03525
03526
03527 if (!(v->vehstatus & VS_HIDDEN)) {
03528 v->cur_speed =
03529 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03530 }
03531
03532 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03533
03534 if (v->IsFrontEngine()) {
03535 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03536 CheckNextTrainTile(v);
03537 }
03538 } else {
03539 v->x_pos = gp.x;
03540 v->y_pos = gp.y;
03541 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03542 continue;
03543 }
03544 }
03545
03546
03547 v->UpdateDeltaXY(v->direction);
03548
03549 v->x_pos = gp.x;
03550 v->y_pos = gp.y;
03551
03552
03553 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03554
03555 if (prev == NULL) {
03556
03557 AffectSpeedByZChange(v, old_z);
03558 }
03559
03560 if (update_signals_crossing) {
03561 if (v->IsFrontEngine()) {
03562 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03563
03564
03565
03566
03567
03568
03569
03570
03571 if ((!HasReservedTracks(gp.new_tile, v->track) &&
03572 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->track))) ||
03573 !TryPathReserve(v)) {
03574 MarkTrainAsStuck(v);
03575 }
03576 }
03577 }
03578
03579
03580
03581 if (v->Next() == NULL) {
03582 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03583 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03584 }
03585 }
03586
03587
03588 if (v->IsFrontEngine() && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03589 }
03590
03591 if (direction_changed) first->tcache.cached_max_curve_speed = first->GetCurveSpeedLimit();
03592
03593 return;
03594
03595 invalid_rail:
03596
03597 if (prev != NULL) error("Disconnecting train");
03598
03599 reverse_train_direction:
03600 v->wait_counter = 0;
03601 v->cur_speed = 0;
03602 v->subspeed = 0;
03603 ReverseTrainDirection(v);
03604 }
03605
03611 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03612 {
03613 TrackBits *trackbits = (TrackBits *)data;
03614
03615 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03616 if (Train::From(v)->track == TRACK_BIT_WORMHOLE) {
03617
03618 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03619 } else {
03620 *trackbits |= Train::From(v)->track;
03621 }
03622 }
03623
03624 return NULL;
03625 }
03626
03634 static void DeleteLastWagon(Train *v)
03635 {
03636 Train *first = v->First();
03637
03638
03639
03640
03641 Train *u = v;
03642 for (; v->Next() != NULL; v = v->Next()) u = v;
03643 u->SetNext(NULL);
03644
03645 if (first != v) {
03646
03647 first->ConsistChanged(false);
03648
03649
03650 if (first->track == TRACK_BIT_DEPOT) {
03651 SetWindowDirty(WC_VEHICLE_DEPOT, first->tile);
03652 }
03653 }
03654
03655
03656 TrackBits trackbits = v->track;
03657 TileIndex tile = v->tile;
03658 Owner owner = v->owner;
03659
03660 delete v;
03661 v = NULL;
03662
03663 if (trackbits == TRACK_BIT_WORMHOLE) {
03664
03665 trackbits = DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03666 }
03667
03668 Track track = TrackBitsToTrack(trackbits);
03669 if (HasReservedTracks(tile, trackbits)) {
03670 UnreserveRailTrack(tile, track);
03671
03672
03673 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03674 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03675
03676
03677 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03678 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03679 if (HasBit(remaining_trackbits, t)) {
03680 TryReserveRailTrack(tile, t);
03681 }
03682 }
03683 }
03684
03685
03686 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03687
03688
03689 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03690 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03691 } else {
03692 SetSignalsOnBothDir(tile, track, owner);
03693 }
03694 }
03695
03696 static void ChangeTrainDirRandomly(Train *v)
03697 {
03698 static const DirDiff delta[] = {
03699 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03700 };
03701
03702 do {
03703
03704 if (!(v->vehstatus & VS_HIDDEN)) {
03705 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03706 v->UpdateDeltaXY(v->direction);
03707 v->cur_image = v->GetImage(v->direction);
03708
03709
03710
03711 if (v->track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
03712 }
03713 } while ((v = v->Next()) != NULL);
03714 }
03715
03716 static bool HandleCrashedTrain(Train *v)
03717 {
03718 int state = ++v->crash_anim_pos;
03719
03720 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03721 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03722 }
03723
03724 uint32 r;
03725 if (state <= 200 && Chance16R(1, 7, r)) {
03726 int index = (r * 10 >> 16);
03727
03728 Vehicle *u = v;
03729 do {
03730 if (--index < 0) {
03731 r = Random();
03732
03733 CreateEffectVehicleRel(u,
03734 GB(r, 8, 3) + 2,
03735 GB(r, 16, 3) + 2,
03736 GB(r, 0, 3) + 5,
03737 EV_EXPLOSION_SMALL);
03738 break;
03739 }
03740 } while ((u = u->Next()) != NULL);
03741 }
03742
03743 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03744
03745 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
03746 bool ret = v->Next() != NULL;
03747 DeleteLastWagon(v);
03748 return ret;
03749 }
03750
03751 return true;
03752 }
03753
03754 static void HandleBrokenTrain(Train *v)
03755 {
03756 if (v->breakdown_ctr != 1) {
03757 v->breakdown_ctr = 1;
03758 v->cur_speed = 0;
03759
03760 if (v->breakdowns_since_last_service != 255)
03761 v->breakdowns_since_last_service++;
03762
03763 v->MarkDirty();
03764 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03765 SetWindowDirty(WC_VEHICLE_DETAILS, v->index);
03766
03767 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
03768 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
03769 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
03770 }
03771
03772 if (!(v->vehstatus & VS_HIDDEN)) {
03773 EffectVehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
03774 if (u != NULL) u->animation_state = v->breakdown_delay * 2;
03775 }
03776 }
03777
03778 if (!(v->tick_counter & 3)) {
03779 if (!--v->breakdown_delay) {
03780 v->breakdown_ctr = 0;
03781 v->MarkDirty();
03782 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
03783 }
03784 }
03785 }
03786
03788 static const uint16 _breakdown_speeds[16] = {
03789 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03790 };
03791
03792
03800 static bool TrainApproachingLineEnd(Train *v, bool signal)
03801 {
03802
03803 uint x = v->x_pos & 0xF;
03804 uint y = v->y_pos & 0xF;
03805
03806
03807
03808 switch (v->direction) {
03809 case DIR_N : x = ~x + ~y + 25; break;
03810 case DIR_NW: x = y;
03811 case DIR_NE: x = ~x + 16; break;
03812 case DIR_E : x = ~x + y + 9; break;
03813 case DIR_SE: x = y; break;
03814 case DIR_S : x = x + y - 7; break;
03815 case DIR_W : x = ~y + x + 9; break;
03816 default: break;
03817 }
03818
03819
03820 if (!signal && x + (v->tcache.cached_veh_length + 1) / 2 >= TILE_SIZE) {
03821
03822 v->cur_speed = 0;
03823 ReverseTrainDirection(v);
03824 return false;
03825 }
03826
03827
03828 v->vehstatus |= VS_TRAIN_SLOWING;
03829 uint16 break_speed = _breakdown_speeds[x & 0xF];
03830 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03831
03832 return true;
03833 }
03834
03835
03841 static bool TrainCanLeaveTile(const Train *v)
03842 {
03843
03844 if (v->track == TRACK_BIT_WORMHOLE || v->track == TRACK_BIT_DEPOT) return false;
03845
03846 TileIndex tile = v->tile;
03847
03848
03849 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03850 DiagDirection dir = GetTunnelBridgeDirection(tile);
03851 if (DiagDirToDir(dir) == v->direction) return false;
03852 }
03853
03854
03855 if (IsRailDepotTile(tile)) {
03856 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03857 if (DiagDirToDir(dir) == v->direction) return false;
03858 }
03859
03860 return true;
03861 }
03862
03863
03871 static TileIndex TrainApproachingCrossingTile(const Train *v)
03872 {
03873 assert(v->IsFrontEngine());
03874 assert(!(v->vehstatus & VS_CRASHED));
03875
03876 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03877
03878 DiagDirection dir = TrainExitDir(v->direction, v->track);
03879 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03880
03881
03882 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03883 !CheckCompatibleRail(v, tile)) {
03884 return INVALID_TILE;
03885 }
03886
03887 return tile;
03888 }
03889
03890
03897 static bool TrainCheckIfLineEnds(Train *v)
03898 {
03899
03900
03901 int t = v->breakdown_ctr;
03902 if (t > 1) {
03903 v->vehstatus |= VS_TRAIN_SLOWING;
03904
03905 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03906 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03907 } else {
03908 v->vehstatus &= ~VS_TRAIN_SLOWING;
03909 }
03910
03911 if (!TrainCanLeaveTile(v)) return true;
03912
03913
03914 DiagDirection dir = TrainExitDir(v->direction, v->track);
03915
03916 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03917
03918
03919 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
03920 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
03921
03922 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03923 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
03924
03925
03926
03927
03928 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03929 if (_settings_game.pf.forbid_90_deg) {
03930 bits &= ~TrackCrossesTracks(FindFirstTrack(v->track));
03931 }
03932
03933
03934 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03935 return TrainApproachingLineEnd(v, false);
03936 }
03937
03938
03939 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
03940
03941
03942 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03943
03944 return true;
03945 }
03946
03947
03948 static bool TrainLocoHandler(Train *v, bool mode)
03949 {
03950
03951 if (v->vehstatus & VS_CRASHED) {
03952 return mode ? true : HandleCrashedTrain(v);
03953 }
03954
03955 if (v->force_proceed != 0) {
03956 ClrBit(v->flags, VRF_TRAIN_STUCK);
03957 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03958 }
03959
03960
03961 if (v->breakdown_ctr != 0) {
03962 if (v->breakdown_ctr <= 2) {
03963 HandleBrokenTrain(v);
03964 return true;
03965 }
03966 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
03967 }
03968
03969 if (HasBit(v->flags, VRF_REVERSING) && v->cur_speed == 0) {
03970 ReverseTrainDirection(v);
03971 }
03972
03973
03974 if ((v->vehstatus & VS_STOPPED) && v->cur_speed == 0) return true;
03975
03976 bool valid_order = !v->current_order.IsType(OT_NOTHING) && v->current_order.GetType() != OT_CONDITIONAL;
03977 if (ProcessOrders(v) && CheckReverseTrain(v)) {
03978 v->wait_counter = 0;
03979 v->cur_speed = 0;
03980 v->subspeed = 0;
03981 ReverseTrainDirection(v);
03982 return true;
03983 }
03984
03985 v->HandleLoading(mode);
03986
03987 if (v->current_order.IsType(OT_LOADING)) return true;
03988
03989 if (CheckTrainStayInDepot(v)) return true;
03990
03991 if (!mode) HandleLocomotiveSmokeCloud(v);
03992
03993
03994 if (!valid_order && !v->current_order.IsType(OT_NOTHING)) {
03995 CheckNextTrainTile(v);
03996 }
03997
03998
03999 if (!mode && HasBit(v->flags, VRF_TRAIN_STUCK)) {
04000 ++v->wait_counter;
04001
04002
04003 bool turn_around = v->wait_counter % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.wait_for_pbs_path < 255;
04004
04005 if (!turn_around && v->wait_counter % _settings_game.pf.path_backoff_interval != 0 && v->force_proceed == 0) return true;
04006 if (!TryPathReserve(v)) {
04007
04008 if (turn_around) ReverseTrainDirection(v);
04009
04010 if (HasBit(v->flags, VRF_TRAIN_STUCK) && v->wait_counter > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
04011
04012 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
04013 SetDParam(0, v->index);
04014 AddVehicleNewsItem(
04015 STR_NEWS_TRAIN_IS_STUCK,
04016 NS_ADVICE,
04017 v->index
04018 );
04019 }
04020 v->wait_counter = 0;
04021 }
04022
04023 if (v->force_proceed == 0) return true;
04024 ClrBit(v->flags, VRF_TRAIN_STUCK);
04025 v->wait_counter = 0;
04026 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04027 }
04028 }
04029
04030 if (v->current_order.IsType(OT_LEAVESTATION)) {
04031 v->current_order.Free();
04032 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04033 return true;
04034 }
04035
04036 int j = v->UpdateSpeed();
04037
04038
04039 if (v->cur_speed == 0 && (v->vehstatus & VS_STOPPED)) {
04040
04041 v->force_proceed = 0;
04042 SetWindowDirty(WC_VEHICLE_VIEW, v->index);
04043 }
04044
04045 int adv_spd = (v->direction & 1) ? 192 : 256;
04046 if (j < adv_spd) {
04047
04048 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04049 } else {
04050 TrainCheckIfLineEnds(v);
04051
04052 for (;;) {
04053 j -= adv_spd;
04054 TrainController(v, NULL);
04055
04056 if (CheckTrainCollision(v)) break;
04057
04058 adv_spd = (v->direction & 1) ? 192 : 256;
04059
04060
04061 if (j < adv_spd || v->cur_speed == 0) break;
04062
04063 OrderType order_type = v->current_order.GetType();
04064
04065 if ((order_type == OT_GOTO_WAYPOINT || order_type == OT_GOTO_STATION) &&
04066 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
04067 IsTileType(v->tile, MP_STATION) &&
04068 v->current_order.GetDestination() == GetStationIndex(v->tile)) {
04069 ProcessOrders(v);
04070 }
04071 }
04072 SetLastSpeed(v, v->cur_speed);
04073 }
04074
04075 for (Train *u = v; u != NULL; u = u->Next()) {
04076 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04077
04078 u->UpdateViewport(false, false);
04079 }
04080
04081 if (v->progress == 0) v->progress = j;
04082
04083 return true;
04084 }
04085
04086
04087
04088 Money Train::GetRunningCost() const
04089 {
04090 Money cost = 0;
04091 const Train *v = this;
04092
04093 do {
04094 const Engine *e = Engine::Get(v->engine_type);
04095 if (e->u.rail.running_cost_class == INVALID_PRICE) continue;
04096
04097 uint cost_factor = GetVehicleProperty(v, PROP_TRAIN_RUNNING_COST_FACTOR, e->u.rail.running_cost);
04098 if (cost_factor == 0) continue;
04099
04100
04101 if (v->IsMultiheaded()) cost_factor /= 2;
04102
04103 cost += GetPrice(e->u.rail.running_cost_class, cost_factor, e->grffile);
04104 } while ((v = v->GetNextVehicle()) != NULL);
04105
04106 return cost;
04107 }
04108
04109
04110 bool Train::Tick()
04111 {
04112 this->tick_counter++;
04113
04114 if (this->IsFrontEngine()) {
04115 if (!(this->vehstatus & VS_STOPPED) || this->cur_speed > 0) this->running_ticks++;
04116
04117 this->current_order_time++;
04118
04119 if (!TrainLocoHandler(this, false)) return false;
04120
04121 return TrainLocoHandler(this, true);
04122 } else if (this->IsFreeWagon() && (this->vehstatus & VS_CRASHED)) {
04123
04124 if (++this->crash_anim_pos >= 4400) {
04125 delete this;
04126 return false;
04127 }
04128 }
04129
04130 return true;
04131 }
04132
04133 static void CheckIfTrainNeedsService(Train *v)
04134 {
04135 if (Company::Get(v->owner)->settings.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04136 if (v->IsInDepot()) {
04137 VehicleServiceInDepot(v);
04138 return;
04139 }
04140
04141 uint max_penalty;
04142 switch (_settings_game.pf.pathfinder_for_trains) {
04143 case VPF_NPF: max_penalty = _settings_game.pf.npf.maximum_go_to_depot_penalty; break;
04144 case VPF_YAPF: max_penalty = _settings_game.pf.yapf.maximum_go_to_depot_penalty; break;
04145 default: NOT_REACHED();
04146 }
04147
04148 FindDepotData tfdd = FindClosestTrainDepot(v, max_penalty);
04149
04150 if (tfdd.best_length == UINT_MAX || tfdd.best_length > max_penalty) {
04151 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04152
04153
04154
04155 v->current_order.MakeDummy();
04156 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04157 }
04158 return;
04159 }
04160
04161 DepotID depot = GetDepotIndex(tfdd.tile);
04162
04163 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04164 v->current_order.GetDestination() != depot &&
04165 !Chance16(3, 16)) {
04166 return;
04167 }
04168
04169 v->current_order.MakeGoToDepot(depot, ODTFB_SERVICE);
04170 v->dest_tile = tfdd.tile;
04171 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04172 }
04173
04174 void Train::OnNewDay()
04175 {
04176 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04177
04178 if (this->IsFrontEngine()) {
04179 CheckVehicleBreakdown(this);
04180 AgeVehicle(this);
04181
04182 CheckIfTrainNeedsService(this);
04183
04184 CheckOrders(this);
04185
04186
04187 if (this->current_order.IsType(OT_GOTO_STATION)) {
04188 TileIndex tile = Station::Get(this->current_order.GetDestination())->train_station.tile;
04189 if (tile != INVALID_TILE) this->dest_tile = tile;
04190 }
04191
04192 if (this->running_ticks != 0) {
04193
04194 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04195
04196 this->profit_this_year -= cost.GetCost();
04197 this->running_ticks = 0;
04198
04199 SubtractMoneyFromCompanyFract(this->owner, cost);
04200
04201 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
04202 SetWindowClassesDirty(WC_TRAINS_LIST);
04203 }
04204 } else if (this->IsEngine()) {
04205
04206 AgeVehicle(this);
04207 }
04208 }
04209
04210 Trackdir Train::GetVehicleTrackdir() const
04211 {
04212 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
04213
04214 if (this->track == TRACK_BIT_DEPOT) {
04215
04216 return DiagDirToDiagTrackdir(GetRailDepotDirection(this->tile));
04217 }
04218
04219 if (this->track == TRACK_BIT_WORMHOLE) {
04220
04221 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
04222 }
04223
04224 return TrackDirectionToTrackdir(FindFirstTrack(this->track), this->direction);
04225 }