00001
00002
00005 #include "stdafx.h"
00006 #include "gui.h"
00007 #include "articulated_vehicles.h"
00008 #include "command_func.h"
00009 #include "npf.h"
00010 #include "news_func.h"
00011 #include "engine_func.h"
00012 #include "engine_base.h"
00013 #include "company_func.h"
00014 #include "depot_base.h"
00015 #include "vehicle_gui.h"
00016 #include "train.h"
00017 #include "newgrf_engine.h"
00018 #include "newgrf_sound.h"
00019 #include "newgrf_text.h"
00020 #include "yapf/follow_track.hpp"
00021 #include "group.h"
00022 #include "table/sprites.h"
00023 #include "strings_func.h"
00024 #include "functions.h"
00025 #include "window_func.h"
00026 #include "vehicle_func.h"
00027 #include "sound_func.h"
00028 #include "variables.h"
00029 #include "autoreplace_gui.h"
00030 #include "gfx_func.h"
00031 #include "ai/ai.hpp"
00032 #include "newgrf_station.h"
00033 #include "effectvehicle_func.h"
00034 #include "gamelog.h"
00035 #include "network/network.h"
00036
00037 #include "table/strings.h"
00038 #include "table/train_cmd.h"
00039
00040 static Track ChooseTrainTrack(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck);
00041 static bool TrainCheckIfLineEnds(Vehicle *v);
00042 static void TrainController(Vehicle *v, Vehicle *nomove);
00043 static TileIndex TrainApproachingCrossingTile(const Vehicle *v);
00044 static void CheckIfTrainNeedsService(Vehicle *v);
00045 static void CheckNextTrainTile(Vehicle *v);
00046
00047 static const byte _vehicle_initial_x_fract[4] = {10, 8, 4, 8};
00048 static const byte _vehicle_initial_y_fract[4] = { 8, 4, 8, 10};
00049
00050
00058 static inline DiagDirection TrainExitDir(Direction direction, TrackBits track)
00059 {
00060 static const TrackBits state_dir_table[DIAGDIR_END] = { TRACK_BIT_RIGHT, TRACK_BIT_LOWER, TRACK_BIT_LEFT, TRACK_BIT_UPPER };
00061
00062 DiagDirection diagdir = DirToDiagDir(direction);
00063
00064
00065 if (!HasBit(direction, 0) && track != state_dir_table[diagdir]) {
00066 diagdir = ChangeDiagDir(diagdir, DIAGDIRDIFF_90LEFT);
00067 }
00068
00069 return diagdir;
00070 }
00071
00072
00077 byte FreightWagonMult(CargoID cargo)
00078 {
00079 if (!GetCargo(cargo)->is_freight) return 1;
00080 return _settings_game.vehicle.freight_trains;
00081 }
00082
00083
00088 void TrainPowerChanged(Vehicle *v)
00089 {
00090 uint32 total_power = 0;
00091 uint32 max_te = 0;
00092
00093 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
00094 RailType railtype = GetRailType(u->tile);
00095
00096
00097 if (!IsArticulatedPart(u)) {
00098 bool engine_has_power = HasPowerOnRail(u->u.rail.railtype, railtype);
00099
00100 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00101
00102 if (engine_has_power) {
00103 uint16 power = GetVehicleProperty(u, 0x0B, rvi_u->power);
00104 if (power != 0) {
00105
00106 if (IsMultiheaded(u)) power /= 2;
00107
00108 total_power += power;
00109
00110 max_te += (u->u.rail.cached_veh_weight * 10000 * GetVehicleProperty(u, 0x1F, rvi_u->tractive_effort)) / 256;
00111 }
00112 }
00113 }
00114
00115 if (HasBit(u->u.rail.flags, VRF_POWEREDWAGON) && HasPowerOnRail(v->u.rail.railtype, railtype)) {
00116 total_power += RailVehInfo(u->u.rail.first_engine)->pow_wag_power;
00117 }
00118 }
00119
00120 if (v->u.rail.cached_power != total_power || v->u.rail.cached_max_te != max_te) {
00121
00122 if (total_power == 0) v->vehstatus |= VS_STOPPED;
00123
00124 v->u.rail.cached_power = total_power;
00125 v->u.rail.cached_max_te = max_te;
00126 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
00127 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
00128 }
00129 }
00130
00131
00137 static void TrainCargoChanged(Vehicle *v)
00138 {
00139 uint32 weight = 0;
00140
00141 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00142 uint32 vweight = GetCargo(u->cargo_type)->weight * u->cargo.Count() * FreightWagonMult(u->cargo_type) / 16;
00143
00144
00145 if (!IsArticulatedPart(u)) {
00146
00147 vweight += GetVehicleProperty(u, 0x16, RailVehInfo(u->engine_type)->weight);
00148 }
00149
00150
00151 if (HasBit(u->u.rail.flags, VRF_POWEREDWAGON)) {
00152 vweight += RailVehInfo(u->u.rail.first_engine)->pow_wag_weight;
00153 }
00154
00155
00156 weight += vweight;
00157
00158
00159 u->u.rail.cached_veh_weight = vweight;
00160 }
00161
00162
00163 v->u.rail.cached_weight = weight;
00164
00165
00166 TrainPowerChanged(v);
00167 }
00168
00169
00174 static void RailVehicleLengthChanged(const Vehicle *u)
00175 {
00176
00177 const Engine *engine = GetEngine(u->engine_type);
00178 uint32 grfid = engine->grffile->grfid;
00179 GRFConfig *grfconfig = GetGRFConfig(grfid);
00180 if (GamelogGRFBugReverse(grfid, engine->internal_id) || !HasBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH)) {
00181 ShowNewGrfVehicleError(u->engine_type, STR_NEWGRF_BROKEN, STR_NEWGRF_BROKEN_VEHICLE_LENGTH, GBUG_VEH_LENGTH, true);
00182 }
00183 }
00184
00186 void CheckTrainsLengths()
00187 {
00188 const Vehicle *v;
00189
00190 FOR_ALL_VEHICLES(v) {
00191 if (v->type == VEH_TRAIN && v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00192 for (const Vehicle *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00193 if (u->u.rail.track != TRACK_BIT_DEPOT) {
00194 if ((w->u.rail.track != TRACK_BIT_DEPOT &&
00195 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->u.rail.cached_veh_length) ||
00196 (w->u.rail.track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00197 SetDParam(0, v->index);
00198 SetDParam(1, v->owner);
00199 ShowErrorMessage(INVALID_STRING_ID, STR_BROKEN_VEHICLE_LENGTH, 0, 0);
00200
00201 if (!_networking) _pause_game = -1;
00202 }
00203 }
00204 }
00205 }
00206 }
00207 }
00208
00216 void TrainConsistChanged(Vehicle *v, bool same_length)
00217 {
00218 uint16 max_speed = UINT16_MAX;
00219
00220 assert(v->type == VEH_TRAIN);
00221 assert(IsFrontEngine(v) || IsFreeWagon(v));
00222
00223 const RailVehicleInfo *rvi_v = RailVehInfo(v->engine_type);
00224 EngineID first_engine = IsFrontEngine(v) ? v->engine_type : INVALID_ENGINE;
00225 v->u.rail.cached_total_length = 0;
00226 v->u.rail.compatible_railtypes = RAILTYPES_NONE;
00227
00228 bool train_can_tilt = true;
00229
00230 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00231 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00232
00233
00234 assert(u->First() == v);
00235
00236
00237 u->u.rail.first_engine = v == u ? INVALID_ENGINE : first_engine;
00238 u->u.rail.railtype = rvi_u->railtype;
00239
00240 if (IsTrainEngine(u)) first_engine = u->engine_type;
00241
00242
00243 u->u.rail.user_def_data = rvi_u->user_def_data;
00244 v->InvalidateNewGRFCache();
00245 u->InvalidateNewGRFCache();
00246 }
00247
00248 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00249
00250 u->u.rail.user_def_data = GetVehicleProperty(u, 0x25, u->u.rail.user_def_data);
00251 v->InvalidateNewGRFCache();
00252 u->InvalidateNewGRFCache();
00253 }
00254
00255 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00256 const Engine *e_u = GetEngine(u->engine_type);
00257 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00258
00259 if (!HasBit(EngInfo(u->engine_type)->misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00260
00261
00262 u->u.rail.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->u.rail.first_engine);
00263
00264
00265 u->colourmap = PAL_NONE;
00266
00267 if (rvi_u->visual_effect != 0) {
00268 u->u.rail.cached_vis_effect = rvi_u->visual_effect;
00269 } else {
00270 if (IsTrainWagon(u) || IsArticulatedPart(u)) {
00271
00272 u->u.rail.cached_vis_effect = 0x40;
00273 } else if (rvi_u->engclass == 0) {
00274
00275 u->u.rail.cached_vis_effect = 4;
00276 } else {
00277
00278 u->u.rail.cached_vis_effect = 8;
00279 }
00280 }
00281
00282
00283 if (HasBit(EngInfo(u->engine_type)->callbackmask, CBM_TRAIN_WAGON_POWER)) {
00284 uint16 callback = GetVehicleCallback(CBID_TRAIN_WAGON_POWER, 0, 0, u->engine_type, u);
00285
00286 if (callback != CALLBACK_FAILED) u->u.rail.cached_vis_effect = GB(callback, 0, 8);
00287 }
00288
00289 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00290 UsesWagonOverride(u) && !HasBit(u->u.rail.cached_vis_effect, 7)) {
00291
00292 SetBit(u->u.rail.flags, VRF_POWEREDWAGON);
00293 } else {
00294 ClrBit(u->u.rail.flags, VRF_POWEREDWAGON);
00295 }
00296
00297 if (!IsArticulatedPart(u)) {
00298
00299
00300 if (rvi_u->power > 0) {
00301 v->u.rail.compatible_railtypes |= GetRailTypeInfo(u->u.rail.railtype)->powered_railtypes;
00302 }
00303
00304
00305
00306 if (HasBit(u->u.rail.flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00307 u->u.rail.railtype = RAILTYPE_RAIL;
00308 u->u.rail.compatible_railtypes |= RAILTYPES_RAIL;
00309 }
00310
00311
00312 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00313 uint16 speed = GetVehicleProperty(u, 0x09, rvi_u->max_speed);
00314 if (speed != 0) max_speed = min(speed, max_speed);
00315 }
00316 }
00317
00318 if (e_u->CanCarryCargo() && u->cargo_type == e_u->GetDefaultCargoType() && u->cargo_subtype == 0) {
00319
00320 u->cargo_cap = GetVehicleProperty(u, 0x14, rvi_u->capacity);
00321 }
00322
00323
00324 uint16 veh_len = CALLBACK_FAILED;
00325 if (HasBit(EngInfo(u->engine_type)->callbackmask, CBM_VEHICLE_LENGTH)) {
00326 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00327 }
00328 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00329 veh_len = 8 - Clamp(veh_len, 0, u->Next() == NULL ? 7 : 5);
00330
00331
00332 if (same_length && veh_len != u->u.rail.cached_veh_length) RailVehicleLengthChanged(u);
00333
00334
00335 if (!same_length) u->u.rail.cached_veh_length = veh_len;
00336
00337 v->u.rail.cached_total_length += u->u.rail.cached_veh_length;
00338 v->InvalidateNewGRFCache();
00339 u->InvalidateNewGRFCache();
00340 }
00341
00342
00343 v->u.rail.cached_max_speed = max_speed;
00344 v->u.rail.cached_tilt = train_can_tilt;
00345
00346
00347 TrainCargoChanged(v);
00348
00349 if (IsFrontEngine(v)) {
00350 UpdateTrainAcceleration(v);
00351 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
00352 }
00353 }
00354
00355 enum AccelType {
00356 AM_ACCEL,
00357 AM_BRAKE
00358 };
00359
00361 static int GetTrainAcceleration(Vehicle *v, bool mode)
00362 {
00363 static const int absolute_max_speed = UINT16_MAX;
00364 int max_speed = absolute_max_speed;
00365 int speed = v->cur_speed * 10 / 16;
00366 int curvecount[2] = {0, 0};
00367
00368
00369 int numcurve = 0;
00370 int sum = 0;
00371 int pos = 0;
00372 int lastpos = -1;
00373 for (const Vehicle *u = v; u->Next() != NULL; u = u->Next(), pos++) {
00374 Direction this_dir = u->direction;
00375 Direction next_dir = u->Next()->direction;
00376
00377 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00378 if (dirdiff == DIRDIFF_SAME) continue;
00379
00380 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00381 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00382 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00383 if (lastpos != -1) {
00384 numcurve++;
00385 sum += pos - lastpos;
00386 if (pos - lastpos == 1) {
00387 max_speed = 88;
00388 }
00389 }
00390 lastpos = pos;
00391 }
00392
00393
00394 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00395 max_speed = 61;
00396 }
00397 }
00398
00399 if ((curvecount[0] != 0 || curvecount[1] != 0) && max_speed > 88) {
00400 int total = curvecount[0] + curvecount[1];
00401
00402 if (curvecount[0] == 1 && curvecount[1] == 1) {
00403 max_speed = absolute_max_speed;
00404 } else if (total > 1) {
00405 if (numcurve > 0) sum /= numcurve;
00406 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00407 }
00408 }
00409
00410 if (max_speed != absolute_max_speed) {
00411
00412 const RailtypeInfo *rti = GetRailTypeInfo(v->u.rail.railtype);
00413 max_speed += (max_speed / 2) * rti->curve_speed;
00414
00415 if (v->u.rail.cached_tilt) {
00416
00417 max_speed += max_speed / 5;
00418 }
00419 }
00420
00421 if (IsTileType(v->tile, MP_STATION) && IsFrontEngine(v)) {
00422 if (v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) {
00423 int station_length = GetStationByTile(v->tile)->GetPlatformLength(v->tile, DirToDiagDir(v->direction));
00424
00425 int st_max_speed = 120;
00426
00427 int delta_v = v->cur_speed / (station_length + 1);
00428 if (v->max_speed > (v->cur_speed - delta_v)) {
00429 st_max_speed = v->cur_speed - (delta_v / 10);
00430 }
00431
00432 st_max_speed = max(st_max_speed, 25 * station_length);
00433 max_speed = min(max_speed, st_max_speed);
00434 }
00435 }
00436
00437 int mass = v->u.rail.cached_weight;
00438 int power = v->u.rail.cached_power * 746;
00439 max_speed = min(max_speed, v->u.rail.cached_max_speed);
00440
00441 int num = 0;
00442 int incl = 0;
00443 int drag_coeff = 20;
00444 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
00445 num++;
00446 drag_coeff += 3;
00447
00448 if (u->u.rail.track == TRACK_BIT_DEPOT) max_speed = min(max_speed, 61);
00449
00450 if (HasBit(u->u.rail.flags, VRF_GOINGUP)) {
00451 incl += u->u.rail.cached_veh_weight * 60;
00452 } else if (HasBit(u->u.rail.flags, VRF_GOINGDOWN)) {
00453 incl -= u->u.rail.cached_veh_weight * 60;
00454 }
00455 }
00456
00457 v->max_speed = max_speed;
00458
00459 const int area = 120;
00460 const int friction = 35;
00461 int resistance;
00462 if (v->u.rail.railtype != RAILTYPE_MAGLEV) {
00463 resistance = 13 * mass / 10;
00464 resistance += 60 * num;
00465 resistance += friction * mass * speed / 1000;
00466 resistance += (area * drag_coeff * speed * speed) / 10000;
00467 } else {
00468 resistance = (area * (drag_coeff / 2) * speed * speed) / 10000;
00469 }
00470 resistance += incl;
00471 resistance *= 4;
00472
00473 const int max_te = v->u.rail.cached_max_te;
00474 int force;
00475 if (speed > 0) {
00476 switch (v->u.rail.railtype) {
00477 case RAILTYPE_RAIL:
00478 case RAILTYPE_ELECTRIC:
00479 case RAILTYPE_MONO:
00480 force = power / speed;
00481 force *= 22;
00482 force /= 10;
00483 if (mode == AM_ACCEL && force > max_te) force = max_te;
00484 break;
00485
00486 default: NOT_REACHED();
00487 case RAILTYPE_MAGLEV:
00488 force = power / 25;
00489 break;
00490 }
00491 } else {
00492
00493 force = (mode == AM_ACCEL && v->u.rail.railtype != RAILTYPE_MAGLEV) ? min(max_te, power) : power;
00494 force = max(force, (mass * 8) + resistance);
00495 }
00496
00497 if (mode == AM_ACCEL) {
00498 return (force - resistance) / (mass * 2);
00499 } else {
00500 return min(-force - resistance, -10000) / mass;
00501 }
00502 }
00503
00504 void UpdateTrainAcceleration(Vehicle *v)
00505 {
00506 assert(IsFrontEngine(v));
00507
00508 v->max_speed = v->u.rail.cached_max_speed;
00509
00510 uint power = v->u.rail.cached_power;
00511 uint weight = v->u.rail.cached_weight;
00512 assert(weight != 0);
00513 v->acceleration = Clamp(power / weight * 4, 1, 255);
00514 }
00515
00516 SpriteID Train::GetImage(Direction direction) const
00517 {
00518 uint8 spritenum = this->spritenum;
00519 SpriteID sprite;
00520
00521 if (HasBit(this->u.rail.flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00522
00523 if (is_custom_sprite(spritenum)) {
00524 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00525 if (sprite != 0) return sprite;
00526
00527 spritenum = GetEngine(this->engine_type)->image_index;
00528 }
00529
00530 sprite = _engine_sprite_base[spritenum] + ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]);
00531
00532 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00533
00534 return sprite;
00535 }
00536
00537 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00538 {
00539 Direction dir = rear_head ? DIR_E : DIR_W;
00540 uint8 spritenum = RailVehInfo(engine)->image_index;
00541
00542 if (is_custom_sprite(spritenum)) {
00543 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00544 if (sprite != 0) {
00545 y += _traininfo_vehicle_pitch;
00546 return sprite;
00547 }
00548
00549 spritenum = GetEngine(engine)->image_index;
00550 }
00551
00552 if (rear_head) spritenum++;
00553
00554 return ((6 + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00555 }
00556
00557 void DrawTrainEngine(int x, int y, EngineID engine, SpriteID pal)
00558 {
00559 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00560 int yf = y;
00561 int yr = y;
00562
00563 SpriteID spritef = GetRailIcon(engine, false, yf);
00564 SpriteID spriter = GetRailIcon(engine, true, yr);
00565 DrawSprite(spritef, pal, x - 14, yf);
00566 DrawSprite(spriter, pal, x + 15, yr);
00567 } else {
00568 SpriteID sprite = GetRailIcon(engine, false, y);
00569 DrawSprite(sprite, pal, x, y);
00570 }
00571 }
00572
00573 static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, DoCommandFlag flags)
00574 {
00575 const Engine *e = GetEngine(engine);
00576 const RailVehicleInfo *rvi = &e->u.rail;
00577 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00578
00579
00580 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00581
00582 if (flags & DC_QUERY_COST) return value;
00583
00584
00585 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00586
00587 uint num_vehicles = 1 + CountArticulatedParts(engine, false);
00588
00589
00590 Vehicle **vl = AllocaM(Vehicle*, num_vehicles + 1);
00591 memset(vl, 0, sizeof(*vl) * (num_vehicles + 1));
00592
00593 if (!Vehicle::AllocateList(vl, num_vehicles)) {
00594 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00595 }
00596
00597 if (flags & DC_EXEC) {
00598 Vehicle *v = vl[0];
00599 v->spritenum = rvi->image_index;
00600
00601 Vehicle *u = NULL;
00602
00603 Vehicle *w;
00604 FOR_ALL_VEHICLES(w) {
00605 if (w->type == VEH_TRAIN && w->tile == tile &&
00606 IsFreeWagon(w) && w->engine_type == engine &&
00607 !HASBITS(w->vehstatus, VS_CRASHED)) {
00608 u = GetLastVehicleInChain(w);
00609 break;
00610 }
00611 }
00612
00613 v = new (v) Train();
00614 v->engine_type = engine;
00615
00616 DiagDirection dir = GetRailDepotDirection(tile);
00617
00618 v->direction = DiagDirToDir(dir);
00619 v->tile = tile;
00620
00621 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00622 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00623
00624 v->x_pos = x;
00625 v->y_pos = y;
00626 v->z_pos = GetSlopeZ(x, y);
00627 v->owner = _current_company;
00628 v->u.rail.track = TRACK_BIT_DEPOT;
00629 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00630
00631
00632 SetTrainWagon(v);
00633
00634 if (u != NULL) {
00635 u->SetNext(v);
00636 } else {
00637 SetFreeWagon(v);
00638 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00639 }
00640
00641 v->cargo_type = e->GetDefaultCargoType();
00642
00643 v->cargo_cap = rvi->capacity;
00644 v->value = value.GetCost();
00645
00646
00647 v->u.rail.railtype = rvi->railtype;
00648
00649 v->build_year = _cur_year;
00650 v->cur_image = 0xAC2;
00651 v->random_bits = VehicleRandomBits();
00652
00653 v->group_id = DEFAULT_GROUP;
00654
00655 AddArticulatedParts(vl, VEH_TRAIN);
00656
00657 _new_vehicle_id = v->index;
00658
00659 VehicleMove(v, false);
00660 TrainConsistChanged(v->First(), false);
00661 UpdateTrainGroupID(v->First());
00662
00663 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
00664 if (IsLocalCompany()) {
00665 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00666 }
00667 GetCompany(_current_company)->num_engines[engine]++;
00668
00669 CheckConsistencyOfArticulatedVehicle(v);
00670 }
00671
00672 return value;
00673 }
00674
00676 static void NormalizeTrainVehInDepot(const Vehicle *u)
00677 {
00678 const Vehicle *v;
00679
00680 FOR_ALL_VEHICLES(v) {
00681 if (v->type == VEH_TRAIN && IsFreeWagon(v) &&
00682 v->tile == u->tile &&
00683 v->u.rail.track == TRACK_BIT_DEPOT) {
00684 if (CmdFailed(DoCommand(0, v->index | (u->index << 16), 1, DC_EXEC,
00685 CMD_MOVE_RAIL_VEHICLE)))
00686 break;
00687 }
00688 }
00689 }
00690
00691 static void AddRearEngineToMultiheadedTrain(Vehicle *v, Vehicle *u, bool building)
00692 {
00693 u = new (u) Train();
00694 u->direction = v->direction;
00695 u->owner = v->owner;
00696 u->tile = v->tile;
00697 u->x_pos = v->x_pos;
00698 u->y_pos = v->y_pos;
00699 u->z_pos = v->z_pos;
00700 u->u.rail.track = TRACK_BIT_DEPOT;
00701 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00702
00703 SetMultiheaded(u);
00704 u->spritenum = v->spritenum + 1;
00705 u->cargo_type = v->cargo_type;
00706 u->cargo_subtype = v->cargo_subtype;
00707 u->cargo_cap = v->cargo_cap;
00708 u->u.rail.railtype = v->u.rail.railtype;
00709 if (building) v->SetNext(u);
00710 u->engine_type = v->engine_type;
00711 u->build_year = v->build_year;
00712 if (building) v->value >>= 1;
00713 u->value = v->value;
00714 u->cur_image = 0xAC2;
00715 u->random_bits = VehicleRandomBits();
00716 VehicleMove(u, false);
00717 }
00718
00725 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00726 {
00727
00728 if (!IsEngineBuildable(p1, VEH_TRAIN, _current_company)) return_cmd_error(STR_RAIL_VEHICLE_NOT_AVAILABLE);
00729
00730 const Engine *e = GetEngine(p1);
00731 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00732
00733
00734 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00735
00736 if (flags & DC_QUERY_COST) return value;
00737
00738
00739
00740 if (!IsRailDepotTile(tile)) return CMD_ERROR;
00741 if (!IsTileOwner(tile, _current_company)) return CMD_ERROR;
00742
00743 const RailVehicleInfo *rvi = RailVehInfo(p1);
00744 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(p1, tile, flags);
00745
00746 uint num_vehicles =
00747 (rvi->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1) +
00748 CountArticulatedParts(p1, false);
00749
00750
00751
00752 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00753
00754
00755 Vehicle **vl = AllocaM(Vehicle*, num_vehicles + 1);
00756 memset(vl, 0, sizeof(*vl) * (num_vehicles + 1));
00757
00758 if (!Vehicle::AllocateList(vl, num_vehicles)) {
00759 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00760 }
00761
00762 Vehicle *v = vl[0];
00763
00764 UnitID unit_num = (flags & DC_AUTOREPLACE) ? 0 : GetFreeUnitNumber(VEH_TRAIN);
00765 if (unit_num > _settings_game.vehicle.max_trains) {
00766 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00767 }
00768
00769 if (flags & DC_EXEC) {
00770 DiagDirection dir = GetRailDepotDirection(tile);
00771 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00772 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00773
00774 v = new (v) Train();
00775 v->unitnumber = unit_num;
00776 v->direction = DiagDirToDir(dir);
00777 v->tile = tile;
00778 v->owner = _current_company;
00779 v->x_pos = x;
00780 v->y_pos = y;
00781 v->z_pos = GetSlopeZ(x, y);
00782
00783 v->u.rail.track = TRACK_BIT_DEPOT;
00784 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00785 v->spritenum = rvi->image_index;
00786 v->cargo_type = e->GetDefaultCargoType();
00787
00788 v->cargo_cap = rvi->capacity;
00789 v->max_speed = rvi->max_speed;
00790 v->value = value.GetCost();
00791 v->last_station_visited = INVALID_STATION;
00792
00793
00794 v->engine_type = p1;
00795
00796 v->reliability = e->reliability;
00797 v->reliability_spd_dec = e->reliability_spd_dec;
00798 v->max_age = e->lifelength * DAYS_IN_LEAP_YEAR;
00799
00800 v->name = NULL;
00801 v->u.rail.railtype = rvi->railtype;
00802 _new_vehicle_id = v->index;
00803
00804 v->service_interval = _settings_game.vehicle.servint_trains;
00805 v->date_of_last_service = _date;
00806 v->build_year = _cur_year;
00807 v->cur_image = 0xAC2;
00808 v->random_bits = VehicleRandomBits();
00809
00810
00811 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00812
00813 v->group_id = DEFAULT_GROUP;
00814
00815
00816 SetFrontEngine(v);
00817 SetTrainEngine(v);
00818
00819 VehicleMove(v, false);
00820
00821 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00822 SetMultiheaded(v);
00823 AddRearEngineToMultiheadedTrain(vl[0], vl[1], true);
00824
00825
00826
00827
00828 vl[0]->u.rail.other_multiheaded_part = vl[1];
00829 vl[1]->u.rail.other_multiheaded_part = vl[0];
00830 } else {
00831 AddArticulatedParts(vl, VEH_TRAIN);
00832 }
00833
00834 TrainConsistChanged(v, false);
00835 UpdateTrainGroupID(v);
00836
00837 if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) {
00838 NormalizeTrainVehInDepot(v);
00839 }
00840
00841 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00842 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
00843 InvalidateWindow(WC_COMPANY, v->owner);
00844 if (IsLocalCompany()) {
00845 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00846 }
00847
00848 GetCompany(_current_company)->num_engines[p1]++;
00849
00850 CheckConsistencyOfArticulatedVehicle(v);
00851 }
00852
00853 return value;
00854 }
00855
00856
00857
00858
00859 int CheckTrainInDepot(const Vehicle *v, bool needs_to_be_stopped)
00860 {
00861 TileIndex tile = v->tile;
00862
00863
00864 if (!IsRailDepotTile(tile) || v->cur_speed != 0) return -1;
00865
00866 int count = 0;
00867 for (; v != NULL; v = v->Next()) {
00868
00869
00870
00871
00872
00873 if (!IsArticulatedPart(v) && !IsRearDualheaded(v)) count++;
00874 if (v->u.rail.track != TRACK_BIT_DEPOT || v->tile != tile ||
00875 (IsFrontEngine(v) && needs_to_be_stopped && !(v->vehstatus & VS_STOPPED))) {
00876 return -1;
00877 }
00878 }
00879
00880 return count;
00881 }
00882
00883
00884 int CheckTrainStoppedInDepot(const Vehicle *v)
00885 {
00886 return CheckTrainInDepot(v, true);
00887 }
00888
00889
00890 inline bool CheckTrainIsInsideDepot(const Vehicle *v)
00891 {
00892 return CheckTrainInDepot(v, false) > 0;
00893 }
00894
00901 static Vehicle *UnlinkWagon(Vehicle *v, Vehicle *first)
00902 {
00903
00904 if (v == first) {
00905 v = GetNextVehicle(v);
00906 if (v == NULL) return NULL;
00907
00908 if (IsTrainWagon(v)) SetFreeWagon(v);
00909
00910
00911
00912
00913 v->Previous()->SetNext(NULL);
00914
00915 return v;
00916 }
00917
00918 Vehicle *u;
00919 for (u = first; GetNextVehicle(u) != v; u = GetNextVehicle(u)) {}
00920 GetLastEnginePart(u)->SetNext(GetNextVehicle(v));
00921 return first;
00922 }
00923
00924 static Vehicle *FindGoodVehiclePos(const Vehicle *src)
00925 {
00926 Vehicle *dst;
00927 EngineID eng = src->engine_type;
00928 TileIndex tile = src->tile;
00929
00930 FOR_ALL_VEHICLES(dst) {
00931 if (dst->type == VEH_TRAIN && IsFreeWagon(dst) && dst->tile == tile && !HASBITS(dst->vehstatus, VS_CRASHED)) {
00932
00933 Vehicle *v = dst;
00934
00935 while (v->engine_type == eng) {
00936 v = v->Next();
00937 if (v == NULL) return dst;
00938 }
00939 }
00940 }
00941
00942 return NULL;
00943 }
00944
00945
00946
00947
00948
00949 static void AddWagonToConsist(Vehicle *v, Vehicle *dest)
00950 {
00951 UnlinkWagon(v, v->First());
00952 if (dest == NULL) return;
00953
00954 Vehicle *next = dest->Next();
00955 v->SetNext(NULL);
00956 dest->SetNext(v);
00957 v->SetNext(next);
00958 ClearFreeWagon(v);
00959 ClearFrontEngine(v);
00960 }
00961
00962
00963
00964
00965
00966 static void NormaliseTrainConsist(Vehicle *v)
00967 {
00968 for (; v != NULL; v = GetNextVehicle(v)) {
00969 if (!IsMultiheaded(v) || !IsTrainEngine(v)) continue;
00970
00971
00972 Vehicle *u;
00973 for (u = v; u->Next() != NULL && !IsTrainEngine(u->Next()); u = u->Next()) {}
00974
00975 if (u == v->u.rail.other_multiheaded_part) continue;
00976 AddWagonToConsist(v->u.rail.other_multiheaded_part, u);
00977 }
00978 }
00979
00989 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00990 {
00991 VehicleID s = GB(p1, 0, 16);
00992 VehicleID d = GB(p1, 16, 16);
00993
00994 if (!IsValidVehicleID(s)) return CMD_ERROR;
00995
00996 Vehicle *src = GetVehicle(s);
00997
00998 if (src->type != VEH_TRAIN || !CheckOwnership(src->owner)) return CMD_ERROR;
00999
01000
01001 if (HASBITS(src->vehstatus, VS_CRASHED)) return CMD_ERROR;
01002
01003
01004 Vehicle *dst;
01005 if (d == INVALID_VEHICLE) {
01006 dst = IsTrainEngine(src) ? NULL : FindGoodVehiclePos(src);
01007 } else {
01008 if (!IsValidVehicleID(d)) return CMD_ERROR;
01009 dst = GetVehicle(d);
01010 if (dst->type != VEH_TRAIN || !CheckOwnership(dst->owner)) return CMD_ERROR;
01011
01012
01013 if (HASBITS(dst->vehstatus, VS_CRASHED)) return CMD_ERROR;
01014 }
01015
01016
01017 while (IsArticulatedPart(src)) src = src->Previous();
01018 if (dst != NULL) {
01019 while (IsArticulatedPart(dst)) dst = dst->Previous();
01020 }
01021
01022
01023 if (src == dst) return CommandCost();
01024
01025
01026 Vehicle *src_head = src->First();
01027 Vehicle *dst_head;
01028 if (dst != NULL) {
01029 dst_head = dst->First();
01030 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01031
01032 dst = GetLastEnginePart(dst);
01033 } else {
01034 dst_head = NULL;
01035 }
01036
01037 if (IsRearDualheaded(src)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01038
01039
01040 if (HasBit(p2, 0) && src_head == dst_head) return CommandCost();
01041
01042
01043 int src_len = CheckTrainStoppedInDepot(src_head);
01044 if (src_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01045
01046 if ((flags & DC_AUTOREPLACE) == 0) {
01047
01048 int max_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
01049
01050
01051 if (src_head != dst_head) {
01052 int dst_len = 0;
01053
01054 if (dst_head != NULL) {
01055
01056 dst_len = CheckTrainStoppedInDepot(dst_head);
01057 if (dst_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01058 }
01059
01060 if (src_head == src && !HasBit(p2, 0)) {
01061
01062
01063
01064
01065 const Vehicle *u = GetNextVehicle(src_head);
01066 if (u != NULL && IsTrainEngine(u) && (src_len - 1) > max_len) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01067 }
01068
01069
01070
01071 if (HasBit(p2, 0)) {
01072 const Vehicle *u;
01073 for (u = src_head; u != src && u != NULL; u = GetNextVehicle(u))
01074 src_len--;
01075 } else {
01076
01077 src_len = 1;
01078 }
01079
01080 if (src_len + dst_len > max_len) {
01081
01082 if (dst_head != NULL && IsFrontEngine(dst_head)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01083
01084 if (dst_head == NULL && IsTrainEngine(src)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01085 }
01086 } else {
01087
01088 if (src_len > max_len && src == src_head && IsTrainEngine(GetNextVehicle(src_head)))
01089 return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01090 }
01091 }
01092
01093
01094 if (dst == NULL && !IsFrontEngine(src) && IsTrainEngine(src)) {
01095 UnitID unit_num = ((flags & DC_AUTOREPLACE) != 0 ? 0 : GetFreeUnitNumber(VEH_TRAIN));
01096 if (unit_num > _settings_game.vehicle.max_trains)
01097 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01098
01099 if (flags & DC_EXEC) src->unitnumber = unit_num;
01100 }
01101
01102
01103 if (!HasBit(p2, 0) && (IsFreeWagon(src) || (IsFrontEngine(src) && dst == NULL)) && (flags & DC_AUTOREPLACE) == 0) {
01104 Vehicle *second = GetNextUnit(src);
01105 if (second != NULL && IsTrainEngine(second) && GetFreeUnitNumber(VEH_TRAIN) > _settings_game.vehicle.max_trains) {
01106 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01107 }
01108 }
01109
01110
01111
01112
01113
01114
01115
01116
01117 bool src_in_dst = false;
01118 for (Vehicle *v = dst_head; !src_in_dst && v != NULL; v = v->Next()) src_in_dst = v == src;
01119
01120
01121
01122
01123
01124
01125
01126
01127
01128 if (dst_head != NULL && !src_in_dst && (flags & DC_AUTOREPLACE) == 0) {
01129
01130
01131
01132
01133
01134
01135
01136
01137
01138 Vehicle *dst_tail = dst_head;
01139 while (dst_tail->Next() != NULL) dst_tail = dst_tail->Next();
01140
01141 Vehicle *orig_tail = dst_tail;
01142 Vehicle *next_to_attach = src;
01143 Vehicle *src_previous = src->Previous();
01144
01145 while (next_to_attach != NULL) {
01146
01147 if (!IsArticulatedPart(next_to_attach) && !IsRearDualheaded(next_to_attach)) {
01148
01149 EngineID first_engine = next_to_attach->u.rail.first_engine;
01150 next_to_attach->u.rail.first_engine = INVALID_ENGINE;
01151
01152 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, dst_head->engine_type, next_to_attach, dst_head);
01153
01154
01155 next_to_attach->u.rail.first_engine = first_engine;
01156
01157 if (callback != CALLBACK_FAILED) {
01158 StringID error = STR_NULL;
01159
01160 if (callback == 0xFD) error = STR_INCOMPATIBLE_RAIL_TYPES;
01161 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(dst_head->engine_type), 0xD000 + callback);
01162
01163 if (error != STR_NULL) {
01164
01165
01166
01167
01168
01169
01170
01171
01172
01173 dst_tail->SetNext(next_to_attach);
01174 orig_tail->SetNext(NULL);
01175 if (src_previous != NULL) src_previous->SetNext(src);
01176
01177 return_cmd_error(error);
01178 }
01179 }
01180 }
01181
01182
01183 if (!HasBit(p2, 0)) break;
01184
01185
01186
01187
01188
01189
01190
01191 Vehicle *to_add = next_to_attach;
01192 next_to_attach = next_to_attach->Next();
01193
01194 to_add->SetNext(NULL);
01195 dst_tail->SetNext(to_add);
01196 dst_tail = dst_tail->Next();
01197 }
01198
01199
01200
01201
01202
01203
01204
01205
01206 orig_tail->SetNext(NULL);
01207 if (src_previous != NULL) src_previous->SetNext(src);
01208 }
01209
01210
01211 if (flags & DC_EXEC) {
01212
01213
01214 if (IsFrontEngine(src) && !IsDefaultGroupID(src->group_id)) {
01215 Vehicle *v = GetNextVehicle(src);
01216
01217 if (v != NULL && IsTrainEngine(v)) {
01218 v->group_id = src->group_id;
01219 src->group_id = DEFAULT_GROUP;
01220 }
01221 }
01222
01223 if (HasBit(p2, 0)) {
01224
01225 if (src != src_head) {
01226 Vehicle *v = src_head;
01227 while (GetNextVehicle(v) != src) v = GetNextVehicle(v);
01228 GetLastEnginePart(v)->SetNext(NULL);
01229 } else {
01230 InvalidateWindowData(WC_VEHICLE_DEPOT, src_head->tile);
01231 src_head = NULL;
01232 }
01233 } else {
01234
01235 if (src_head == dst_head) dst_head = NULL;
01236
01237 src_head = UnlinkWagon(src, src_head);
01238 GetLastEnginePart(src)->SetNext(NULL);
01239 }
01240
01241 if (dst == NULL) {
01242
01243 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01244
01245
01246 if (IsTrainEngine(src)) {
01247 if (!IsFrontEngine(src)) {
01248
01249 SetFrontEngine(src);
01250 assert(src->orders.list == NULL);
01251
01252
01253 if (!IsDefaultGroupID(src->group_id) && IsValidGroupID(src->group_id)) {
01254 GetGroup(src->group_id)->num_engines[src->engine_type]--;
01255 }
01256
01257
01258 src->group_id = DEFAULT_GROUP;
01259 }
01260 } else {
01261 SetFreeWagon(src);
01262 }
01263 dst_head = src;
01264 } else {
01265 if (IsFrontEngine(src)) {
01266
01267 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01268 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01269 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01270 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01271 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01272 DeleteVehicleOrders(src);
01273 RemoveVehicleFromGroup(src);
01274 }
01275
01276 if (IsFrontEngine(src) || IsFreeWagon(src)) {
01277 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01278 ClearFrontEngine(src);
01279 ClearFreeWagon(src);
01280 src->unitnumber = 0;
01281 }
01282
01283
01284 {
01285 Vehicle *v;
01286
01287 for (v = src; GetNextVehicle(v) != NULL; v = GetNextVehicle(v)) {}
01288 GetLastEnginePart(v)->SetNext(dst->Next());
01289 }
01290 dst->SetNext(src);
01291 }
01292
01293 if (src->u.rail.other_multiheaded_part != NULL) {
01294 if (src->u.rail.other_multiheaded_part == src_head) {
01295 src_head = src_head->Next();
01296 }
01297 AddWagonToConsist(src->u.rail.other_multiheaded_part, src);
01298 }
01299
01300
01301
01302
01303 if (src_head != NULL && !IsFrontEngine(src_head) && IsTrainEngine(src_head)) {
01304
01305
01306 const GroupID tmp_g = src_head->group_id;
01307 CmdMoveRailVehicle(0, flags, src_head->index | (INVALID_VEHICLE << 16), 1, text);
01308 SetTrainGroupID(src_head, tmp_g);
01309 src_head = NULL;
01310 }
01311
01312 if (src_head != NULL) {
01313 NormaliseTrainConsist(src_head);
01314 TrainConsistChanged(src_head, false);
01315 UpdateTrainGroupID(src_head);
01316 if (IsFrontEngine(src_head)) {
01317
01318 InvalidateWindow(WC_VEHICLE_REFIT, src_head->index);
01319 InvalidateWindowWidget(WC_VEHICLE_VIEW, src_head->index, VVW_WIDGET_REFIT_VEH);
01320 }
01321
01322 InvalidateWindow(WC_VEHICLE_DEPOT, src_head->tile);
01323 }
01324
01325 if (dst_head != NULL) {
01326 NormaliseTrainConsist(dst_head);
01327 TrainConsistChanged(dst_head, false);
01328 UpdateTrainGroupID(dst_head);
01329 if (IsFrontEngine(dst_head)) {
01330
01331 InvalidateWindowWidget(WC_VEHICLE_VIEW, dst_head->index, VVW_WIDGET_REFIT_VEH);
01332 InvalidateWindow(WC_VEHICLE_REFIT, dst_head->index);
01333 }
01334
01335 InvalidateWindow(WC_VEHICLE_DEPOT, dst_head->tile);
01336 }
01337
01338 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01339 }
01340
01341 return CommandCost();
01342 }
01343
01353 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01354 {
01355
01356 Window *w = NULL;
01357
01358 if (!IsValidVehicleID(p1) || p2 > 1) return CMD_ERROR;
01359
01360 Vehicle *v = GetVehicle(p1);
01361
01362 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01363
01364 if (HASBITS(v->vehstatus, VS_CRASHED)) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
01365
01366 while (IsArticulatedPart(v)) v = v->Previous();
01367 Vehicle *first = v->First();
01368
01369
01370 if (CheckTrainStoppedInDepot(first) < 0) {
01371 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01372 }
01373
01374 if (IsRearDualheaded(v)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01375
01376 if (flags & DC_EXEC) {
01377 if (v == first && IsFrontEngine(first)) {
01378 DeleteWindowById(WC_VEHICLE_VIEW, first->index);
01379 DeleteWindowById(WC_VEHICLE_ORDERS, first->index);
01380 DeleteWindowById(WC_VEHICLE_REFIT, first->index);
01381 DeleteWindowById(WC_VEHICLE_DETAILS, first->index);
01382 DeleteWindowById(WC_VEHICLE_TIMETABLE, first->index);
01383 }
01384 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
01385 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01386 }
01387
01388 CommandCost cost(EXPENSES_NEW_VEHICLES);
01389 switch (p2) {
01390 case 0: {
01391 bool switch_engine = false;
01392
01393
01394
01395 Vehicle *rear = (IsMultiheaded(v) &&
01396 IsTrainEngine(v)) ? v->u.rail.other_multiheaded_part : NULL;
01397
01398 if (rear != NULL) {
01399 cost.AddCost(-rear->value);
01400 if (flags & DC_EXEC) {
01401 UnlinkWagon(rear, first);
01402 delete rear;
01403 }
01404 }
01405
01406
01407
01408 if (v == first) {
01409 Vehicle *new_f = GetNextVehicle(first);
01410
01411
01412
01413
01414 if (new_f != NULL && IsTrainEngine(new_f)) {
01415 if (IsTrainEngine(first)) {
01416
01417 switch_engine = true;
01418
01419 if (flags & DC_EXEC) {
01420
01421 new_f->group_id = first->group_id;
01422 first->group_id = DEFAULT_GROUP;
01423
01424
01425 new_f->orders.list = first->orders.list;
01426 new_f->AddToShared(first);
01427 DeleteVehicleOrders(first);
01428
01429
01430 new_f->CopyVehicleConfigAndStatistics(first);
01431
01432
01433 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_f);
01434 }
01435 } else {
01436
01437
01438
01439 cost.AddCost(DoCommand(0, new_f->index | INVALID_VEHICLE << 16, 1, flags, CMD_MOVE_RAIL_VEHICLE));
01440 if (cost.Failed()) return cost;
01441 }
01442 }
01443 }
01444
01445
01446 cost.AddCost(-v->value);
01447 if (flags & DC_EXEC) {
01448 first = UnlinkWagon(v, first);
01449 delete v;
01450
01451
01452
01453 if (switch_engine) SetFrontEngine(first);
01454
01455
01456 if (first != NULL) {
01457 NormaliseTrainConsist(first);
01458 TrainConsistChanged(first, false);
01459 UpdateTrainGroupID(first);
01460 if (IsFrontEngine(first)) InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01461 }
01462
01463 }
01464 } break;
01465 case 1: {
01466
01467
01468
01469 for (Vehicle *tmp; v != NULL; v = tmp) {
01470 tmp = GetNextVehicle(v);
01471
01472 if (IsMultiheaded(v)) {
01473 if (IsTrainEngine(v)) {
01474
01475 Vehicle *rear = v->u.rail.other_multiheaded_part;
01476
01477 if (rear != NULL) {
01478 cost.AddCost(-rear->value);
01479
01480
01481
01482
01483
01484
01485
01486 if (tmp == rear) tmp = GetNextVehicle(tmp);
01487
01488 if (flags & DC_EXEC) {
01489 first = UnlinkWagon(rear, first);
01490 delete rear;
01491 }
01492 }
01493 } else if (v->u.rail.other_multiheaded_part != NULL) {
01494
01495 continue;
01496 }
01497 }
01498
01499 cost.AddCost(-v->value);
01500 if (flags & DC_EXEC) {
01501 first = UnlinkWagon(v, first);
01502 delete v;
01503 }
01504 }
01505
01506
01507 if (flags & DC_EXEC && first != NULL) {
01508 NormaliseTrainConsist(first);
01509 TrainConsistChanged(first, false);
01510 UpdateTrainGroupID(first);
01511 InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01512 }
01513 } break;
01514 }
01515 return cost;
01516 }
01517
01518 void Train::UpdateDeltaXY(Direction direction)
01519 {
01520 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01521 static const uint32 _delta_xy_table[8] = {
01522 MKIT(3, 3, -1, -1),
01523 MKIT(3, 7, -1, -3),
01524 MKIT(3, 3, -1, -1),
01525 MKIT(7, 3, -3, -1),
01526 MKIT(3, 3, -1, -1),
01527 MKIT(3, 7, -1, -3),
01528 MKIT(3, 3, -1, -1),
01529 MKIT(7, 3, -3, -1),
01530 };
01531 #undef MKIT
01532
01533 uint32 x = _delta_xy_table[direction];
01534 this->x_offs = GB(x, 0, 8);
01535 this->y_offs = GB(x, 8, 8);
01536 this->x_extent = GB(x, 16, 8);
01537 this->y_extent = GB(x, 24, 8);
01538 this->z_extent = 6;
01539 }
01540
01541 static inline void SetLastSpeed(Vehicle *v, int spd)
01542 {
01543 int old = v->u.rail.last_speed;
01544 if (spd != old) {
01545 v->u.rail.last_speed = spd;
01546 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01547 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01548 }
01549 }
01550 }
01551
01553 static void MarkTrainAsStuck(Vehicle *v)
01554 {
01555 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01556
01557 SetBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01558
01559
01560 if (v->current_order.IsType(OT_LOADING)) return;
01561
01562 v->load_unload_time_rem = 0;
01563
01564
01565 v->cur_speed = 0;
01566 v->subspeed = 0;
01567 SetLastSpeed(v, 0);
01568
01569 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01570 }
01571 }
01572
01573 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01574 {
01575 uint16 flag1 = *swap_flag1;
01576 uint16 flag2 = *swap_flag2;
01577
01578
01579 ClrBit(*swap_flag1, VRF_GOINGUP);
01580 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01581 ClrBit(*swap_flag2, VRF_GOINGUP);
01582 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01583
01584
01585 if (HasBit(flag1, VRF_GOINGUP)) {
01586 SetBit(*swap_flag2, VRF_GOINGDOWN);
01587 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01588 SetBit(*swap_flag2, VRF_GOINGUP);
01589 }
01590 if (HasBit(flag2, VRF_GOINGUP)) {
01591 SetBit(*swap_flag1, VRF_GOINGDOWN);
01592 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01593 SetBit(*swap_flag1, VRF_GOINGUP);
01594 }
01595 }
01596
01597 static void ReverseTrainSwapVeh(Vehicle *v, int l, int r)
01598 {
01599 Vehicle *a, *b;
01600
01601
01602 for (a = v; l != 0; l--) a = a->Next();
01603 for (b = v; r != 0; r--) b = b->Next();
01604
01605 if (a != b) {
01606
01607 {
01608 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01609 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01610 a->vehstatus = tmp;
01611 }
01612
01613 Swap(a->u.rail.track, b->u.rail.track);
01614 Swap(a->direction, b->direction);
01615
01616
01617 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01618 if (b->u.rail.track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01619
01620 Swap(a->x_pos, b->x_pos);
01621 Swap(a->y_pos, b->y_pos);
01622 Swap(a->tile, b->tile);
01623 Swap(a->z_pos, b->z_pos);
01624
01625 SwapTrainFlags(&a->u.rail.flags, &b->u.rail.flags);
01626
01627
01628 a->UpdateViewport(true, true);
01629 b->UpdateViewport(true, true);
01630
01631
01632 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01633 if (b->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01634 } else {
01635 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01636 a->UpdateViewport(true, true);
01637
01638 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01639 }
01640
01641
01642 TrainPowerChanged(v);
01643 }
01644
01645
01651 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01652 {
01653 return (v->type == VEH_TRAIN) ? v : NULL;
01654 }
01655
01656
01663 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01664 {
01665
01666 if (v->type != VEH_TRAIN || !IsFrontEngine(v) || v->vehstatus & VS_CRASHED) return NULL;
01667
01668 TileIndex tile = *(TileIndex*)data;
01669
01670 if (TrainApproachingCrossingTile(v) != tile) return NULL;
01671
01672 return v;
01673 }
01674
01675
01682 static bool TrainApproachingCrossing(TileIndex tile)
01683 {
01684 assert(IsLevelCrossingTile(tile));
01685
01686 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01687 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01688
01689 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01690
01691 dir = ReverseDiagDir(dir);
01692 tile_from = tile + TileOffsByDiagDir(dir);
01693
01694 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01695 }
01696
01697
01704 void UpdateLevelCrossing(TileIndex tile, bool sound)
01705 {
01706 assert(IsLevelCrossingTile(tile));
01707
01708
01709 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || GetCrossingReservation(tile);
01710
01711 if (new_state != IsCrossingBarred(tile)) {
01712 if (new_state && sound) {
01713 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01714 }
01715 SetCrossingBarred(tile, new_state);
01716 MarkTileDirtyByTile(tile);
01717 }
01718 }
01719
01720
01726 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01727 {
01728 if (!IsCrossingBarred(tile)) {
01729 BarCrossing(tile);
01730 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01731 MarkTileDirtyByTile(tile);
01732 }
01733 }
01734
01735
01741 static void AdvanceWagonsBeforeSwap(Vehicle *v)
01742 {
01743 Vehicle *base = v;
01744 Vehicle *first = base;
01745 Vehicle *last = GetLastVehicleInChain(v);
01746 uint length = CountVehiclesInChain(v);
01747
01748 while (length > 2) {
01749 last = last->Previous();
01750 first = first->Next();
01751
01752 int differential = base->u.rail.cached_veh_length - last->u.rail.cached_veh_length;
01753
01754
01755
01756 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01757
01758 base = first;
01759 length -= 2;
01760 }
01761 }
01762
01763
01769 static void AdvanceWagonsAfterSwap(Vehicle *v)
01770 {
01771
01772 Vehicle *dep = v;
01773 while (dep->Next() != NULL && (dep->u.rail.track == TRACK_BIT_DEPOT || dep->Next()->u.rail.track != TRACK_BIT_DEPOT)) {
01774 dep = dep->Next();
01775 }
01776
01777 Vehicle *leave = dep->Next();
01778
01779 if (leave != NULL) {
01780
01781 int d = TicksToLeaveDepot(dep);
01782
01783 if (d <= 0) {
01784 leave->vehstatus &= ~VS_HIDDEN;
01785 leave->u.rail.track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01786 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01787 }
01788 } else {
01789 dep = NULL;
01790 }
01791
01792 Vehicle *base = v;
01793 Vehicle *first = base;
01794 Vehicle *last = GetLastVehicleInChain(v);
01795 uint length = CountVehiclesInChain(v);
01796
01797
01798
01799 bool nomove = (dep == NULL);
01800
01801 while (length > 2) {
01802
01803
01804 if (base == dep) break;
01805
01806
01807 if (last == dep) nomove = true;
01808
01809 last = last->Previous();
01810 first = first->Next();
01811
01812 int differential = last->u.rail.cached_veh_length - base->u.rail.cached_veh_length;
01813
01814
01815 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01816
01817 base = first;
01818 length -= 2;
01819 }
01820 }
01821
01822
01823 static void ReverseTrainDirection(Vehicle *v)
01824 {
01825 if (IsRailDepotTile(v->tile)) {
01826 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01827 }
01828
01829
01830 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01831
01832
01833 TileIndex crossing = TrainApproachingCrossingTile(v);
01834
01835
01836 int r = CountVehiclesInChain(v) - 1;
01837
01838 AdvanceWagonsBeforeSwap(v);
01839
01840
01841 int l = 0;
01842 do {
01843 ReverseTrainSwapVeh(v, l++, r--);
01844 } while (l <= r);
01845
01846 AdvanceWagonsAfterSwap(v);
01847
01848 if (IsRailDepotTile(v->tile)) {
01849 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01850 }
01851
01852 ToggleBit(v->u.rail.flags, VRF_TOGGLE_REVERSE);
01853
01854 ClrBit(v->u.rail.flags, VRF_REVERSING);
01855
01856
01857 TrainConsistChanged(v, true);
01858
01859
01860 for (Vehicle *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01861
01862
01863 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01864
01865
01866 crossing = TrainApproachingCrossingTile(v);
01867 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01868
01869
01870 if (v->u.rail.track & TRACK_BIT_DEPOT) {
01871
01872 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01873 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01874 return;
01875 }
01876
01877
01878
01879 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
01880 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01881
01882 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01883
01884
01885 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01886 HasSignalOnTrackdir(v->tile, GetVehicleTrackdir(v)) &&
01887 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->u.rail.track))));
01888
01889 if (IsRailwayStationTile(v->tile)) SetRailwayStationPlatformReservation(v->tile, TrackdirToExitdir(GetVehicleTrackdir(v)), true);
01890 if (TryPathReserve(v, false, first_tile_okay)) {
01891
01892 CheckNextTrainTile(v);
01893 } else if (v->current_order.GetType() != OT_LOADING) {
01894
01895 MarkTrainAsStuck(v);
01896 }
01897 } else if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01898
01899 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01900 v->load_unload_time_rem = 0;
01901 }
01902 }
01903
01910 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01911 {
01912 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01913
01914 Vehicle *v = GetVehicle(p1);
01915
01916 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01917
01918 if (p2 != 0) {
01919
01920
01921 if (IsMultiheaded(v) || HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) {
01922 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01923 }
01924
01925 Vehicle *front = v->First();
01926
01927 if (CheckTrainStoppedInDepot(front) < 0) {
01928 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01929 }
01930
01931 if (flags & DC_EXEC) {
01932 ToggleBit(v->u.rail.flags, VRF_REVERSE_DIRECTION);
01933 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
01934 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
01935 }
01936 } else {
01937
01938 if (v->vehstatus & VS_CRASHED || v->breakdown_ctr != 0) return CMD_ERROR;
01939
01940 if (flags & DC_EXEC) {
01941
01942 if (v->current_order.IsType(OT_LOADING)) {
01943 const Vehicle *last = v;
01944 while (last->Next() != NULL) last = last->Next();
01945
01946
01947 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01948 v->LeaveStation();
01949 }
01950 }
01951
01952 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL && v->cur_speed != 0) {
01953 ToggleBit(v->u.rail.flags, VRF_REVERSING);
01954 } else {
01955 v->cur_speed = 0;
01956 SetLastSpeed(v, 0);
01957 HideFillingPercent(&v->fill_percent_te_id);
01958 ReverseTrainDirection(v);
01959 }
01960 }
01961 }
01962 return CommandCost();
01963 }
01964
01971 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01972 {
01973 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01974
01975 Vehicle *v = GetVehicle(p1);
01976
01977 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01978
01979 if (flags & DC_EXEC) v->u.rail.force_proceed = 0x50;
01980
01981 return CommandCost();
01982 }
01983
01994 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01995 {
01996 CargoID new_cid = GB(p2, 0, 8);
01997 byte new_subtype = GB(p2, 8, 8);
01998 bool only_this = HasBit(p2, 16);
01999
02000 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02001
02002 Vehicle *v = GetVehicle(p1);
02003
02004 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
02005 if (CheckTrainStoppedInDepot(v) < 0) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02006 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_REFIT_DESTROYED_VEHICLE);
02007
02008
02009 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02010
02011 CommandCost cost(EXPENSES_TRAIN_RUN);
02012 uint num = 0;
02013
02014 do {
02015
02016
02017
02018 if (!CanRefitTo(v->engine_type, new_cid)) continue;
02019
02020 const Engine *e = GetEngine(v->engine_type);
02021 if (e->CanCarryCargo()) {
02022 uint16 amount = CALLBACK_FAILED;
02023
02024 if (HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_REFIT_CAPACITY)) {
02025
02026 CargoID temp_cid = v->cargo_type;
02027 byte temp_subtype = v->cargo_subtype;
02028 v->cargo_type = new_cid;
02029 v->cargo_subtype = new_subtype;
02030
02031 amount = GetVehicleCallback(CBID_VEHICLE_REFIT_CAPACITY, 0, 0, v->engine_type, v);
02032
02033 v->cargo_type = temp_cid;
02034 v->cargo_subtype = temp_subtype;
02035 }
02036
02037 if (amount == CALLBACK_FAILED) {
02038 CargoID old_cid = e->GetDefaultCargoType();
02039
02040
02041
02042
02043 amount = e->u.rail.capacity;
02044 switch (old_cid) {
02045 case CT_PASSENGERS: break;
02046 case CT_MAIL:
02047 case CT_GOODS: amount *= 2; break;
02048 default: amount *= 4; break;
02049 }
02050 switch (new_cid) {
02051 case CT_PASSENGERS: break;
02052 case CT_MAIL:
02053 case CT_GOODS: amount /= 2; break;
02054 default: amount /= 4; break;
02055 }
02056 }
02057
02058 if (new_cid != v->cargo_type) {
02059 cost.AddCost(GetRefitCost(v->engine_type));
02060 }
02061
02062 num += amount;
02063 if (flags & DC_EXEC) {
02064 v->cargo.Truncate((v->cargo_type == new_cid) ? amount : 0);
02065 v->cargo_type = new_cid;
02066 v->cargo_cap = amount;
02067 v->cargo_subtype = new_subtype;
02068 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
02069 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02070 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02071 }
02072 }
02073 } while ((v = v->Next()) != NULL && !only_this);
02074
02075 _returned_refit_capacity = num;
02076
02077
02078 if (flags & DC_EXEC) TrainConsistChanged(GetVehicle(p1)->First(), false);
02079
02080 return cost;
02081 }
02082
02083 struct TrainFindDepotData {
02084 uint best_length;
02085 TileIndex tile;
02086 Owner owner;
02091 bool reverse;
02092 };
02093
02094 static bool NtpCallbFindDepot(TileIndex tile, TrainFindDepotData *tfdd, int track, uint length)
02095 {
02096 if (IsTileType(tile, MP_RAILWAY) &&
02097 IsTileOwner(tile, tfdd->owner) &&
02098 IsRailDepot(tile)) {
02099
02100 tfdd->best_length = length / DIAG_FACTOR;
02101 tfdd->tile = tile;
02102 return true;
02103 }
02104
02105 return false;
02106 }
02107
02110 static TrainFindDepotData FindClosestTrainDepot(Vehicle *v, int max_distance)
02111 {
02112 assert(!(v->vehstatus & VS_CRASHED));
02113
02114 TrainFindDepotData tfdd;
02115 tfdd.owner = v->owner;
02116 tfdd.reverse = false;
02117
02118 if (IsRailDepotTile(v->tile)) {
02119 tfdd.tile = v->tile;
02120 tfdd.best_length = 0;
02121 return tfdd;
02122 }
02123
02124 PBSTileInfo origin = FollowTrainReservation(v);
02125 if (IsRailDepotTile(origin.tile)) {
02126 tfdd.tile = origin.tile;
02127 tfdd.best_length = 0;
02128 return tfdd;
02129 }
02130
02131 tfdd.best_length = UINT_MAX;
02132
02133 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02134 if ((_settings_game.pf.reserve_paths || HasReservedTracks(v->tile, v->u.rail.track)) && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02135
02136 switch (pathfinder) {
02137 case VPF_YAPF: {
02138 bool found = YapfFindNearestRailDepotTwoWay(v, max_distance, NPF_INFINITE_PENALTY, &tfdd.tile, &tfdd.reverse);
02139 tfdd.best_length = found ? max_distance / 2 : UINT_MAX;
02140 } break;
02141
02142 case VPF_NPF: {
02143 const Vehicle *last = GetLastVehicleInChain(v);
02144 Trackdir trackdir = GetVehicleTrackdir(v);
02145 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
02146
02147 assert(trackdir != INVALID_TRACKDIR);
02148 NPFFoundTargetData ftd = NPFRouteToDepotBreadthFirstTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes, NPF_INFINITE_PENALTY);
02149 if (ftd.best_bird_dist == 0) {
02150
02151 tfdd.tile = ftd.node.tile;
02152
02153
02154
02155
02156 tfdd.best_length = ftd.best_path_dist / NPF_TILE_LENGTH;
02157 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) tfdd.reverse = true;
02158 }
02159 } break;
02160
02161 default:
02162 case VPF_NTP: {
02163
02164 DiagDirection i = TrainExitDir(v->direction, v->u.rail.track);
02165 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02166 if (tfdd.best_length == UINT_MAX){
02167 tfdd.reverse = true;
02168
02169 i = TrainExitDir(ReverseDir(v->direction), v->u.rail.track);
02170 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02171 }
02172 } break;
02173 }
02174
02175 return tfdd;
02176 }
02177
02178 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02179 {
02180 TrainFindDepotData tfdd = FindClosestTrainDepot(this, 0);
02181 if (tfdd.best_length == UINT_MAX) return false;
02182
02183 if (location != NULL) *location = tfdd.tile;
02184 if (destination != NULL) *destination = GetDepotByTile(tfdd.tile)->index;
02185 if (reverse != NULL) *reverse = tfdd.reverse;
02186
02187 return true;
02188 }
02189
02198 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02199 {
02200 if (p2 & DEPOT_MASS_SEND) {
02201
02202 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02203 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02204 }
02205
02206 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02207
02208 Vehicle *v = GetVehicle(p1);
02209
02210 if (v->type != VEH_TRAIN) return CMD_ERROR;
02211
02212 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02213 }
02214
02215
02216 void OnTick_Train()
02217 {
02218 _age_cargo_skip_counter = (_age_cargo_skip_counter == 0) ? 184 : (_age_cargo_skip_counter - 1);
02219 }
02220
02221 static const int8 _vehicle_smoke_pos[8] = {
02222 1, 1, 1, 0, -1, -1, -1, 0
02223 };
02224
02225 static void HandleLocomotiveSmokeCloud(const Vehicle *v)
02226 {
02227 bool sound = false;
02228
02229 if (v->vehstatus & VS_TRAIN_SLOWING || v->load_unload_time_rem != 0 || v->cur_speed < 2) {
02230 return;
02231 }
02232
02233 const Vehicle *u = v;
02234
02235 do {
02236 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02237 int effect_offset = GB(v->u.rail.cached_vis_effect, 0, 4) - 8;
02238 byte effect_type = GB(v->u.rail.cached_vis_effect, 4, 2);
02239 bool disable_effect = HasBit(v->u.rail.cached_vis_effect, 6);
02240
02241
02242 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02243 disable_effect ||
02244 v->vehstatus & VS_HIDDEN) {
02245 continue;
02246 }
02247
02248
02249 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02250
02251
02252 if (!HasPowerOnRail(v->u.rail.railtype, GetTileRailType(v->tile))) continue;
02253
02254 if (effect_type == 0) {
02255
02256 effect_type = rvi->engclass;
02257 } else {
02258 effect_type--;
02259 }
02260
02261 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02262 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02263
02264 if (HasBit(v->u.rail.flags, VRF_REVERSE_DIRECTION)) {
02265 x = -x;
02266 y = -y;
02267 }
02268
02269 switch (effect_type) {
02270 case 0:
02271
02272 if (GB(v->tick_counter, 0, 4) == 0) {
02273 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02274 sound = true;
02275 }
02276 break;
02277
02278 case 1:
02279
02280 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02281 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02282 sound = true;
02283 }
02284 break;
02285
02286 case 2:
02287
02288 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02289 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02290 sound = true;
02291 }
02292 break;
02293
02294 default:
02295 break;
02296 }
02297 } while ((v = v->Next()) != NULL);
02298
02299 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02300 }
02301
02302 void Train::PlayLeaveStationSound() const
02303 {
02304 static const SoundFx sfx[] = {
02305 SND_04_TRAIN,
02306 SND_0A_TRAIN_HORN,
02307 SND_0A_TRAIN_HORN,
02308 SND_47_MAGLEV_2,
02309 SND_41_MAGLEV
02310 };
02311
02312 if (PlayVehicleSound(this, VSE_START)) return;
02313
02314 EngineID engtype = this->engine_type;
02315 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02316 }
02317
02319 static void CheckNextTrainTile(Vehicle *v)
02320 {
02321
02322 if (_settings_game.pf.path_backoff_interval == 255) return;
02323
02324
02325 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->u.rail.track & TRACK_BIT_DEPOT) return;
02326
02327 if (IsRailwayStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02328
02329 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02330
02331 Trackdir td = GetVehicleTrackdir(v);
02332
02333
02334 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02335 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02336 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02337
02338 CFollowTrackRail ft(v);
02339 if (!ft.Follow(v->tile, td)) return;
02340
02341 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02342
02343 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02344 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02345
02346 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02347 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
02348 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02349 }
02350 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02351 }
02352 }
02353 }
02354 }
02355
02356 static bool CheckTrainStayInDepot(Vehicle *v)
02357 {
02358
02359 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
02360 if (u->u.rail.track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02361 }
02362
02363
02364 if (v->u.rail.cached_power == 0) {
02365 v->vehstatus |= VS_STOPPED;
02366 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02367 return true;
02368 }
02369
02370 SigSegState seg_state;
02371
02372 if (v->u.rail.force_proceed == 0) {
02373
02374 if (++v->load_unload_time_rem < 37) {
02375 InvalidateWindowClasses(WC_TRAINS_LIST);
02376 return true;
02377 }
02378
02379 v->load_unload_time_rem = 0;
02380
02381 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02382 if (seg_state == SIGSEG_FULL || GetDepotWaypointReservation(v->tile)) {
02383
02384 InvalidateWindowClasses(WC_TRAINS_LIST);
02385 return true;
02386 }
02387 } else {
02388 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02389 }
02390
02391
02392 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02393
02394 if (GetDepotWaypointReservation(v->tile)) return true;
02395 SetDepotWaypointReservation(v->tile, true);
02396 VehicleEnterDepot(v);
02397 return true;
02398 }
02399
02400
02401 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->u.rail.force_proceed == 0) {
02402
02403 InvalidateWindowClasses(WC_TRAINS_LIST);
02404 MarkTrainAsStuck(v);
02405 return true;
02406 }
02407
02408 SetDepotWaypointReservation(v->tile, true);
02409 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02410
02411 VehicleServiceInDepot(v);
02412 InvalidateWindowClasses(WC_TRAINS_LIST);
02413 v->PlayLeaveStationSound();
02414
02415 v->u.rail.track = TRACK_BIT_X;
02416 if (v->direction & 2) v->u.rail.track = TRACK_BIT_Y;
02417
02418 v->vehstatus &= ~VS_HIDDEN;
02419 v->cur_speed = 0;
02420
02421 v->UpdateDeltaXY(v->direction);
02422 v->cur_image = v->GetImage(v->direction);
02423 VehicleMove(v, false);
02424 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02425 UpdateTrainAcceleration(v);
02426 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02427
02428 return false;
02429 }
02430
02432 static void ClearPathReservation(const Vehicle *v, TileIndex tile, Trackdir track_dir)
02433 {
02434 DiagDirection dir = TrackdirToExitdir(track_dir);
02435
02436 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02437
02438 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02439 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02440
02441 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02442
02443 SetTunnelBridgeReservation(tile, false);
02444 SetTunnelBridgeReservation(end, false);
02445
02446 if (_settings_client.gui.show_track_reservation) {
02447 MarkTileDirtyByTile(tile);
02448 MarkTileDirtyByTile(end);
02449 }
02450 }
02451 }
02452 } else if (IsRailwayStationTile(tile)) {
02453 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02454
02455
02456 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02457 SetRailwayStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02458 }
02459 } else {
02460
02461 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02462 }
02463 }
02464
02466 void FreeTrainTrackReservation(const Vehicle *v, TileIndex origin, Trackdir orig_td)
02467 {
02468 assert(IsFrontEngine(v));
02469
02470 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02471 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : GetVehicleTrackdir(v);
02472 bool free_tile = tile != v->tile || !(IsRailwayStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02473 StationID station_id = IsRailwayStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02474
02475
02476 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02477
02478 CFollowTrackRail ft(v, GetRailTypeInfo(v->u.rail.railtype)->compatible_railtypes);
02479 while (ft.Follow(tile, td)) {
02480 tile = ft.m_new_tile;
02481 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02482 td = RemoveFirstTrackdir(&bits);
02483 assert(bits == TRACKDIR_BIT_NONE);
02484
02485 if (!IsValidTrackdir(td)) break;
02486
02487 if (IsTileType(tile, MP_RAILWAY)) {
02488 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02489
02490 UnreserveRailTrack(tile, TrackdirToTrack(td));
02491 break;
02492 }
02493 if (HasPbsSignalOnTrackdir(tile, td)) {
02494 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02495
02496 break;
02497 } else {
02498
02499 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02500 MarkTileDirtyByTile(tile);
02501 }
02502 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02503 break;
02504 }
02505 }
02506
02507
02508 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);
02509
02510 free_tile = true;
02511 }
02512 }
02513
02515 struct TrainTrackFollowerData {
02516 TileIndex dest_coords;
02517 StationID station_index;
02518 uint best_bird_dist;
02519 uint best_track_dist;
02520 TrackdirByte best_track;
02521 };
02522
02523 static bool NtpCallbFindStation(TileIndex tile, TrainTrackFollowerData *ttfd, Trackdir track, uint length)
02524 {
02525
02526 if (ttfd->dest_coords == 0) return false;
02527
02528
02529 if ((ttfd->station_index == INVALID_STATION && tile == ttfd->dest_coords) || (
02530 IsTileType(tile, MP_STATION) &&
02531 IsRailwayStation(tile) &&
02532 GetStationIndex(tile) == ttfd->station_index
02533 )) {
02534
02535
02536
02537
02538
02539 ttfd->best_track = track;
02540 ttfd->best_bird_dist = 0;
02541 return true;
02542 } else {
02543
02544 uint dist = DistanceManhattan(tile, ttfd->dest_coords);
02545 if (dist < ttfd->best_bird_dist) {
02546 ttfd->best_bird_dist = dist;
02547 ttfd->best_track = track;
02548 }
02549 return false;
02550 }
02551 }
02552
02553 static void FillWithStationData(TrainTrackFollowerData *fd, const Vehicle *v)
02554 {
02555 fd->dest_coords = v->dest_tile;
02556 fd->station_index = v->current_order.IsType(OT_GOTO_STATION) ? v->current_order.GetDestination() : INVALID_STATION;
02557 }
02558
02559 static const byte _initial_tile_subcoord[6][4][3] = {
02560 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02561 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02562 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02563 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02564 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02565 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02566 };
02567
02568 static const byte _search_directions[6][4] = {
02569 { 0, 9, 2, 9 },
02570 { 9, 1, 9, 3 },
02571 { 9, 0, 3, 9 },
02572 { 1, 9, 9, 2 },
02573 { 3, 2, 9, 9 },
02574 { 9, 9, 1, 0 },
02575 };
02576
02577 static const byte _pick_track_table[6] = {1, 3, 2, 2, 0, 0};
02578
02591 static Track DoTrainPathfind(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02592 {
02593 Track best_track;
02594
02595 #ifdef PF_BENCHMARK
02596 TIC()
02597 #endif
02598
02599 if (path_not_found) *path_not_found = false;
02600
02601 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02602 if (do_track_reservation && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02603
02604 switch (pathfinder) {
02605 case VPF_YAPF: {
02606 Trackdir trackdir = YapfChooseRailTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02607 if (trackdir != INVALID_TRACKDIR) {
02608 best_track = TrackdirToTrack(trackdir);
02609 } else {
02610 best_track = FindFirstTrack(tracks);
02611 }
02612 } break;
02613
02614 case VPF_NPF: {
02615 void *perf = NpfBeginInterval();
02616
02617 NPFFindStationOrTileData fstd;
02618 NPFFillWithOrderData(&fstd, v, do_track_reservation);
02619
02620 PBSTileInfo origin = FollowTrainReservation(v);
02621 assert(IsValidTrackdir(origin.trackdir));
02622
02623 NPFFoundTargetData ftd = NPFRouteToStationOrTile(origin.tile, origin.trackdir, true, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
02624
02625 if (dest != NULL) {
02626 dest->tile = ftd.node.tile;
02627 dest->trackdir = (Trackdir)ftd.node.direction;
02628 dest->okay = ftd.res_okay;
02629 }
02630
02631 if (ftd.best_trackdir == INVALID_TRACKDIR) {
02632
02633
02634
02635 best_track = FindFirstTrack(tracks);
02636 } else {
02637
02638
02639
02640
02641 if (ftd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02642
02643 best_track = TrackdirToTrack(ftd.best_trackdir);
02644 }
02645
02646 int time = NpfEndInterval(perf);
02647 DEBUG(yapf, 4, "[NPFT] %d us - %d rounds - %d open - %d closed -- ", time, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
02648 } break;
02649
02650 default:
02651 case VPF_NTP: {
02652 void *perf = NpfBeginInterval();
02653
02654 TrainTrackFollowerData fd;
02655 FillWithStationData(&fd, v);
02656
02657
02658 fd.best_bird_dist = UINT_MAX;
02659 fd.best_track_dist = UINT_MAX;
02660 fd.best_track = INVALID_TRACKDIR;
02661
02662 NewTrainPathfind(tile - TileOffsByDiagDir(enterdir), v->dest_tile,
02663 v->u.rail.compatible_railtypes, enterdir, (NTPEnumProc*)NtpCallbFindStation, &fd);
02664
02665
02666 if (fd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02667
02668 if (fd.best_track == INVALID_TRACKDIR) {
02669
02670 best_track = FindFirstTrack(tracks);
02671 } else {
02672 best_track = TrackdirToTrack(fd.best_track);
02673 }
02674
02675 int time = NpfEndInterval(perf);
02676 DEBUG(yapf, 4, "[NTPT] %d us - %d rounds - %d open - %d closed -- ", time, 0, 0, 0);
02677 } break;
02678 }
02679
02680 #ifdef PF_BENCHMARK
02681 TOC("PF time = ", 1)
02682 #endif
02683
02684 return best_track;
02685 }
02686
02692 static PBSTileInfo ExtendTrainReservation(const Vehicle *v, TrackBits *new_tracks, DiagDirection *enterdir)
02693 {
02694 bool no_90deg_turns = _settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg;
02695 PBSTileInfo origin = FollowTrainReservation(v);
02696
02697 CFollowTrackRail ft(v);
02698
02699 TileIndex tile = origin.tile;
02700 Trackdir cur_td = origin.trackdir;
02701 while (ft.Follow(tile, cur_td)) {
02702 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02703
02704 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02705 }
02706
02707 if (no_90deg_turns) {
02708 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02709 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02710 }
02711
02712
02713 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02714 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02715
02716
02717
02718
02719
02720
02721 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02722
02723
02724
02725 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02726
02727
02728 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02729 if (enterdir) *enterdir = ft.m_exitdir;
02730 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02731 }
02732
02733 tile = ft.m_new_tile;
02734 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02735
02736 if (IsSafeWaitingPosition(v, tile, cur_td, true, no_90deg_turns)) {
02737 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, no_90deg_turns);
02738 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02739
02740 return PBSTileInfo(tile, cur_td, true);
02741 }
02742
02743 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02744 }
02745
02746 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02747
02748 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02749 }
02750
02751
02752 tile = origin.tile;
02753 cur_td = origin.trackdir;
02754 TileIndex stopped = ft.m_old_tile;
02755 Trackdir stopped_td = ft.m_old_td;
02756 while (tile != stopped || cur_td != stopped_td) {
02757 if (!ft.Follow(tile, cur_td)) break;
02758
02759 if (no_90deg_turns) {
02760 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02761 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02762 }
02763 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02764
02765 tile = ft.m_new_tile;
02766 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02767
02768 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02769 }
02770
02771
02772 return PBSTileInfo();
02773 }
02774
02785 static bool TryReserveSafeTrack(const Vehicle *v, TileIndex tile, Trackdir td, bool override_tailtype)
02786 {
02787 if (_settings_game.pf.pathfinder_for_trains == VPF_YAPF) {
02788 return YapfRailFindNearestSafeTile(v, tile, td, override_tailtype);
02789 } else {
02790 return NPFRouteToSafeTile(v, tile, td, override_tailtype).res_okay;
02791 }
02792 }
02793
02795 class VehicleOrderSaver
02796 {
02797 private:
02798 Vehicle *v;
02799 Order old_order;
02800 TileIndex old_dest_tile;
02801 StationID old_last_station_visited;
02802 VehicleOrderID index;
02803
02804 public:
02805 VehicleOrderSaver(Vehicle *_v) :
02806 v(_v),
02807 old_order(_v->current_order),
02808 old_dest_tile(_v->dest_tile),
02809 old_last_station_visited(_v->last_station_visited),
02810 index(_v->cur_order_index)
02811 {
02812 }
02813
02814 ~VehicleOrderSaver()
02815 {
02816 this->v->current_order = this->old_order;
02817 this->v->dest_tile = this->old_dest_tile;
02818 this->v->last_station_visited = this->old_last_station_visited;
02819 }
02820
02826 bool SwitchToNextOrder(bool skip_first)
02827 {
02828 if (this->v->GetNumOrders() == 0) return false;
02829
02830 if (skip_first) ++this->index;
02831
02832 int conditional_depth = 0;
02833
02834 do {
02835
02836 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02837
02838 Order *order = GetVehicleOrder(this->v, this->index);
02839 assert(order != NULL);
02840
02841 switch (order->GetType()) {
02842 case OT_GOTO_DEPOT:
02843
02844 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02845 case OT_GOTO_STATION:
02846 case OT_GOTO_WAYPOINT:
02847 this->v->current_order = *order;
02848 UpdateOrderDest(this->v, order);
02849 return true;
02850 case OT_CONDITIONAL: {
02851 if (conditional_depth > this->v->GetNumOrders()) return false;
02852 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02853 if (next != INVALID_VEH_ORDER_ID) {
02854 conditional_depth++;
02855 this->index = next;
02856
02857 continue;
02858 }
02859 break;
02860 }
02861 default:
02862 break;
02863 }
02864
02865
02866 ++this->index;
02867 } while (this->index != this->v->cur_order_index);
02868
02869 return false;
02870 }
02871 };
02872
02873
02874 static Track ChooseTrainTrack(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02875 {
02876 Track best_track = INVALID_TRACK;
02877 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02878 bool changed_signal = false;
02879
02880 assert((tracks & ~TRACK_BIT_MASK) == 0);
02881
02882 if (got_reservation != NULL) *got_reservation = false;
02883
02884
02885 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02886
02887 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02888
02889
02890 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02891 Track track = FindFirstTrack(tracks);
02892
02893 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02894 do_track_reservation = true;
02895 changed_signal = true;
02896 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02897 } else if (!do_track_reservation) {
02898 return track;
02899 }
02900 best_track = track;
02901 }
02902
02903 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02904 DiagDirection dest_enterdir = enterdir;
02905 if (do_track_reservation) {
02906
02907
02908
02909 CheckIfTrainNeedsService(v);
02910 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02911
02912 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02913 if (res_dest.tile == INVALID_TILE) {
02914
02915 if (mark_stuck) MarkTrainAsStuck(v);
02916 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02917 return FindFirstTrack(tracks);
02918 }
02919 }
02920
02921
02922 VehicleOrderSaver orders(v);
02923
02924
02925
02926
02927
02928
02929
02930 if (v->current_order.IsType(OT_LEAVESTATION)) {
02931 orders.SwitchToNextOrder(false);
02932 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02933 v->current_order.IsType(OT_GOTO_STATION) ?
02934 IsRailwayStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02935 v->tile == v->dest_tile))) {
02936 orders.SwitchToNextOrder(true);
02937 }
02938
02939 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02940
02941 bool path_not_found = false;
02942 TileIndex new_tile = res_dest.tile;
02943
02944 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02945 if (new_tile == tile) best_track = next_track;
02946
02947
02948 if (path_not_found) {
02949
02950 if (!HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02951
02952 SetBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02953
02954 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02955 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02956 SetDParam(0, v->index);
02957 AddNewsItem(
02958 STR_TRAIN_IS_LOST,
02959 NS_ADVICE,
02960 v->index,
02961 0);
02962 }
02963 }
02964 } else {
02965
02966 if (HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02967
02968 ClrBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02969
02970 }
02971 }
02972 }
02973
02974
02975 if (!do_track_reservation) return best_track;
02976
02977
02978 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02979 if (mark_stuck) MarkTrainAsStuck(v);
02980 FreeTrainTrackReservation(v);
02981 return best_track;
02982 }
02983
02984
02985 if (res_dest.tile == INVALID_TILE) {
02986
02987 PBSTileInfo origin = FollowTrainReservation(v);
02988 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02989 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02990 best_track = FindFirstTrack(res);
02991 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
02992 if (got_reservation != NULL) *got_reservation = true;
02993 if (changed_signal) MarkTileDirtyByTile(tile);
02994 } else {
02995 FreeTrainTrackReservation(v);
02996 if (mark_stuck) MarkTrainAsStuck(v);
02997 }
02998 return best_track;
02999 }
03000
03001 if (got_reservation != NULL) *got_reservation = true;
03002
03003
03004 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
03005
03006 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
03007 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
03008 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
03009 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
03010 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
03011 }
03012
03013
03014 if (orders.SwitchToNextOrder(true)) {
03015 PBSTileInfo cur_dest;
03016 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
03017 if (cur_dest.tile != INVALID_TILE) {
03018 res_dest = cur_dest;
03019 if (res_dest.okay) continue;
03020
03021 FreeTrainTrackReservation(v);
03022 if (mark_stuck) MarkTrainAsStuck(v);
03023 if (got_reservation != NULL) *got_reservation = false;
03024 changed_signal = false;
03025 break;
03026 }
03027 }
03028
03029 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
03030 FreeTrainTrackReservation(v);
03031 if (mark_stuck) MarkTrainAsStuck(v);
03032 if (got_reservation != NULL) *got_reservation = false;
03033 changed_signal = false;
03034 }
03035 break;
03036 }
03037
03038 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
03039
03040 if (changed_signal) MarkTileDirtyByTile(tile);
03041
03042 return best_track;
03043 }
03044
03053 bool TryPathReserve(Vehicle *v, bool mark_as_stuck, bool first_tile_okay)
03054 {
03055 assert(v->type == VEH_TRAIN && IsFrontEngine(v));
03056
03057
03058
03059
03060 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03061 if (GetDepotWaypointReservation(v->tile)) {
03062 if (mark_as_stuck) MarkTrainAsStuck(v);
03063 return false;
03064 } else {
03065
03066 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
03067 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
03068 }
03069 }
03070
03071
03072 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
03073 TileIndex next_tile = TileAddByDiagDir(v->tile, dir);
03074 if (IsTileType(next_tile, MP_RAILWAY) && HasReservedTracks(next_tile, DiagdirReachesTracks(dir))) {
03075
03076 Trackdir td = FindFirstTrackdir(TrackBitsToTrackdirBits(GetReservedTrackbits(next_tile)) & DiagdirReachesTrackdirs(dir));
03077 if (HasSignalOnTrackdir(next_tile, td) && HasSignalOnTrackdir(next_tile, ReverseTrackdir(td)) &&
03078 !IsPbsSignal(GetSignalType(next_tile, TrackdirToTrack(td)))) {
03079
03080 if (mark_as_stuck) MarkTrainAsStuck(v);
03081 return false;
03082 }
03083 }
03084
03085 bool other_train = false;
03086 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
03087
03088
03089
03090
03091
03092 if (other_train && v->tile != origin.tile) {
03093 if (mark_as_stuck) MarkTrainAsStuck(v);
03094 return false;
03095 }
03096
03097 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
03098
03099 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03100 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03101 return true;
03102 }
03103
03104
03105 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03106 SetDepotWaypointReservation(v->tile, true);
03107 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
03108 }
03109
03110 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
03111 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
03112 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
03113
03114 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
03115
03116 bool res_made = false;
03117 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
03118
03119 if (!res_made) {
03120
03121 if (v->u.rail.track & TRACK_BIT_DEPOT) SetDepotWaypointReservation(v->tile, false);
03122 return false;
03123 }
03124
03125 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03126 v->load_unload_time_rem = 0;
03127 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03128 }
03129 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03130 return true;
03131 }
03132
03133
03134 static bool CheckReverseTrain(Vehicle *v)
03135 {
03136 if (_settings_game.difficulty.line_reverse_mode != 0 ||
03137 v->u.rail.track == TRACK_BIT_DEPOT || v->u.rail.track == TRACK_BIT_WORMHOLE ||
03138 !(v->direction & 1)) {
03139 return false;
03140 }
03141
03142 uint reverse_best = 0;
03143
03144 assert(v->u.rail.track);
03145
03146 switch (_settings_game.pf.pathfinder_for_trains) {
03147 case VPF_YAPF:
03148 reverse_best = YapfCheckReverseTrain(v);
03149 break;
03150
03151 case VPF_NPF: {
03152 NPFFindStationOrTileData fstd;
03153 NPFFoundTargetData ftd;
03154 Vehicle *last = GetLastVehicleInChain(v);
03155
03156 NPFFillWithOrderData(&fstd, v);
03157
03158 Trackdir trackdir = GetVehicleTrackdir(v);
03159 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
03160 assert(trackdir != INVALID_TRACKDIR);
03161 assert(trackdir_rev != INVALID_TRACKDIR);
03162
03163 ftd = NPFRouteToStationOrTileTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
03164 if (ftd.best_bird_dist != 0) {
03165
03166 reverse_best = false;
03167 } else {
03168 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) {
03169 reverse_best = true;
03170 } else {
03171 reverse_best = false;
03172 }
03173 }
03174 } break;
03175
03176 default:
03177 case VPF_NTP: {
03178 TrainTrackFollowerData fd;
03179 FillWithStationData(&fd, v);
03180
03181 int i = _search_directions[FindFirstTrack(v->u.rail.track)][DirToDiagDir(v->direction)];
03182
03183 int best_track = -1;
03184 uint reverse = 0;
03185 uint best_bird_dist = 0;
03186 uint best_track_dist = 0;
03187
03188 for (;;) {
03189 fd.best_bird_dist = UINT_MAX;
03190 fd.best_track_dist = UINT_MAX;
03191
03192 NewTrainPathfind(v->tile, v->dest_tile, v->u.rail.compatible_railtypes, (DiagDirection)(reverse ^ i), (NTPEnumProc*)NtpCallbFindStation, &fd);
03193
03194 if (best_track != -1) {
03195 if (best_bird_dist != 0) {
03196 if (fd.best_bird_dist != 0) {
03197
03198 if (fd.best_bird_dist > best_bird_dist) goto bad;
03199 if (fd.best_bird_dist < best_bird_dist) goto good;
03200 } else {
03201
03202 goto good;
03203 }
03204 } else {
03205 if (fd.best_bird_dist != 0) {
03206
03207 goto bad;
03208 } else {
03209
03210 if (fd.best_track_dist > best_track_dist) goto bad;
03211 if (fd.best_track_dist < best_track_dist) goto good;
03212 }
03213 }
03214
03215
03216
03217 int r = GB(Random(), 0, 8);
03218 if (_pick_track_table[i] == (v->direction & 3)) r += 80;
03219 if (_pick_track_table[best_track] == (v->direction & 3)) r -= 80;
03220 if (r <= 127) goto bad;
03221 }
03222 good:;
03223 best_track = i;
03224 best_bird_dist = fd.best_bird_dist;
03225 best_track_dist = fd.best_track_dist;
03226 reverse_best = reverse;
03227 bad:;
03228 if (reverse != 0) break;
03229 reverse = 2;
03230 }
03231 } break;
03232 }
03233
03234 return reverse_best != 0;
03235 }
03236
03237 TileIndex Train::GetOrderStationLocation(StationID station)
03238 {
03239 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
03240
03241 const Station *st = GetStation(station);
03242 if (!(st->facilities & FACIL_TRAIN)) {
03243
03244 this->cur_order_index++;
03245 return 0;
03246 }
03247
03248 return st->xy;
03249 }
03250
03251 void Train::MarkDirty()
03252 {
03253 Vehicle *v = this;
03254 do {
03255 v->UpdateViewport(false, false);
03256 } while ((v = v->Next()) != NULL);
03257
03258
03259 TrainCargoChanged(this);
03260 UpdateTrainAcceleration(this);
03261 }
03262
03273 static int UpdateTrainSpeed(Vehicle *v)
03274 {
03275 uint accel;
03276
03277 if (v->vehstatus & VS_STOPPED || HasBit(v->u.rail.flags, VRF_REVERSING) || HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03278 switch (_settings_game.vehicle.train_acceleration_model) {
03279 default: NOT_REACHED();
03280 case TAM_ORIGINAL: accel = v->acceleration * -4; break;
03281 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_BRAKE); break;
03282 }
03283 } else {
03284 switch (_settings_game.vehicle.train_acceleration_model) {
03285 default: NOT_REACHED();
03286 case TAM_ORIGINAL: accel = v->acceleration * 2; break;
03287 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_ACCEL); break;
03288 }
03289 }
03290
03291 uint spd = v->subspeed + accel;
03292 v->subspeed = (byte)spd;
03293 {
03294 int tempmax = v->max_speed;
03295 if (v->cur_speed > v->max_speed)
03296 tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
03297 v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
03298 }
03299
03300
03301
03302
03303
03304
03305
03306
03307
03308
03309
03310
03311 int scaled_spd = spd * 3 >> 2;
03312
03313 scaled_spd += v->progress;
03314 v->progress = 0;
03315 return scaled_spd;
03316 }
03317
03318 static void TrainEnterStation(Vehicle *v, StationID station)
03319 {
03320 v->last_station_visited = station;
03321
03322
03323 Station *st = GetStation(station);
03324 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
03325 st->had_vehicle_of_type |= HVOT_TRAIN;
03326 SetDParam(0, st->index);
03327 AddNewsItem(
03328 STR_8801_CITIZENS_CELEBRATE_FIRST,
03329 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
03330 v->index,
03331 st->index
03332 );
03333 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
03334 }
03335
03336 v->BeginLoading();
03337
03338 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03339 }
03340
03341 static byte AfterSetTrainPos(Vehicle *v, bool new_tile)
03342 {
03343 byte old_z = v->z_pos;
03344 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03345
03346 if (new_tile) {
03347 ClrBit(v->u.rail.flags, VRF_GOINGUP);
03348 ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
03349
03350 if (v->u.rail.track == TRACK_BIT_X || v->u.rail.track == TRACK_BIT_Y) {
03351
03352
03353
03354
03355
03356 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03357 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03358
03359 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03360
03361
03362
03363 if (middle_z != v->z_pos && !IsTunnelTile(TileVirtXY(v->x_pos, v->y_pos))) {
03364 SetBit(v->u.rail.flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03365 }
03366 }
03367 }
03368
03369 VehicleMove(v, true);
03370 return old_z;
03371 }
03372
03373 static const Direction _new_vehicle_direction_table[11] = {
03374 DIR_N , DIR_NW, DIR_W , INVALID_DIR,
03375 DIR_NE, DIR_N , DIR_SW, INVALID_DIR,
03376 DIR_E , DIR_SE, DIR_S
03377 };
03378
03379 static inline Direction GetNewVehicleDirectionByTile(TileIndex new_tile, TileIndex old_tile)
03380 {
03381 uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
03382 TileX(new_tile) - TileX(old_tile) + 1;
03383 assert(offs < 11);
03384 return _new_vehicle_direction_table[offs];
03385 }
03386
03387 static inline int GetDirectionToVehicle(const Vehicle *v, int x, int y)
03388 {
03389 byte offs;
03390
03391 x -= v->x_pos;
03392 if (x >= 0) {
03393 offs = (x > 2) ? 0 : 1;
03394 } else {
03395 offs = (x < -2) ? 2 : 1;
03396 }
03397
03398 y -= v->y_pos;
03399 if (y >= 0) {
03400 offs += ((y > 2) ? 0 : 1) * 4;
03401 } else {
03402 offs += ((y < -2) ? 2 : 1) * 4;
03403 }
03404
03405 assert(offs < 11);
03406 return _new_vehicle_direction_table[offs];
03407 }
03408
03409
03410 static inline bool CheckCompatibleRail(const Vehicle *v, TileIndex tile)
03411 {
03412 return
03413 IsTileOwner(tile, v->owner) && (
03414 !IsFrontEngine(v) ||
03415 HasBit(v->u.rail.compatible_railtypes, GetRailType(tile))
03416 );
03417 }
03418
03419 struct RailtypeSlowdownParams {
03420 byte small_turn, large_turn;
03421 byte z_up;
03422 byte z_down;
03423 };
03424
03425 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03426
03427 {256 / 4, 256 / 2, 256 / 4, 2},
03428 {256 / 4, 256 / 2, 256 / 4, 2},
03429 {256 / 4, 256 / 2, 256 / 4, 2},
03430 {0, 256 / 2, 256 / 4, 2},
03431 };
03432
03434 static inline void AffectSpeedByDirChange(Vehicle *v, Direction new_dir)
03435 {
03436 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03437
03438 DirDiff diff = DirDifference(v->direction, new_dir);
03439 if (diff == DIRDIFF_SAME) return;
03440
03441 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03442 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03443 }
03444
03446 static inline void AffectSpeedByZChange(Vehicle *v, byte old_z)
03447 {
03448 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03449
03450 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03451
03452 if (old_z < v->z_pos) {
03453 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03454 } else {
03455 uint16 spd = v->cur_speed + rsp->z_down;
03456 if (spd <= v->max_speed) v->cur_speed = spd;
03457 }
03458 }
03459
03460 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03461 {
03462 if (IsTileType(tile, MP_RAILWAY) &&
03463 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03464 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03465 Trackdir trackdir = FindFirstTrackdir(tracks);
03466 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03467
03468 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03469 }
03470 }
03471 return false;
03472 }
03473
03474
03475 static void SetVehicleCrashed(Vehicle *v)
03476 {
03477 if (v->u.rail.crash_anim_pos != 0) return;
03478
03479 if (IsFrontEngine(v)) {
03480
03481
03482 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
03483 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
03484 ClearPathReservation(u, u->tile, GetVehicleTrackdir(u));
03485 if (IsTileType(u->tile, MP_TUNNELBRIDGE)) {
03486
03487
03488 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(u->tile), false);
03489 }
03490 }
03491 }
03492
03493
03494 TileIndex crossing = TrainApproachingCrossingTile(v);
03495
03496 v->u.rail.crash_anim_pos++;
03497
03498 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03499 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
03500
03501 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03502 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
03503 }
03504
03505 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
03506
03507 for (; v != NULL; v = v->Next()) {
03508 v->vehstatus |= VS_CRASHED;
03509 MarkSingleVehicleDirty(v);
03510 }
03511
03512
03513 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03514 }
03515
03516 static uint CountPassengersInTrain(const Vehicle *v)
03517 {
03518 uint num = 0;
03519
03520 for (; v != NULL; v = v->Next()) {
03521 if (IsCargoInClass(v->cargo_type, CC_PASSENGERS)) num += v->cargo.Count();
03522 }
03523
03524 return num;
03525 }
03526
03533 static uint TrainCrashed(Vehicle *v)
03534 {
03535
03536 if (v->vehstatus & VS_CRASHED) return 0;
03537
03538
03539 uint num = 2 + CountPassengersInTrain(v);
03540
03541 SetVehicleCrashed(v);
03542 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03543
03544 return num;
03545 }
03546
03547 struct TrainCollideChecker {
03548 Vehicle *v;
03549 uint num;
03550 };
03551
03552 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03553 {
03554 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03555
03556 if (v->type != VEH_TRAIN) return NULL;
03557
03558
03559 Vehicle *coll = v->First();
03560
03561
03562 if (coll != tcc->v && v->u.rail.track != TRACK_BIT_DEPOT && abs(v->z_pos - tcc->v->z_pos) < 6) {
03563 int x_diff = v->x_pos - tcc->v->x_pos;
03564 int y_diff = v->y_pos - tcc->v->y_pos;
03565
03566
03567 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03568
03569
03570 tcc->num += TrainCrashed(tcc->v);
03571 tcc->num += TrainCrashed(coll);
03572
03573
03574
03575 const Vehicle *u;
03576 FOR_ALL_VEHICLES(u) {
03577 if (u->type == VEH_TRAIN && HASBITS(u->vehstatus, VS_CRASHED) && (u->u.rail.track & TRACK_BIT_DEPOT) == TRACK_BIT_NONE) {
03578 TrackBits trackbits = u->u.rail.track;
03579 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03580
03581 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(u->tile));
03582 }
03583 TryReserveRailTrack(u->tile, TrackBitsToTrack(trackbits));
03584 }
03585 }
03586 }
03587
03588 return NULL;
03589 }
03590
03597 static bool CheckTrainCollision(Vehicle *v)
03598 {
03599
03600 if (v->u.rail.track == TRACK_BIT_DEPOT) return false;
03601
03602 assert(v->u.rail.track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03603
03604 TrainCollideChecker tcc;
03605 tcc.v = v;
03606 tcc.num = 0;
03607
03608
03609 if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
03610 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03611 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03612 } else {
03613 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03614 }
03615
03616
03617 if (tcc.num == 0) return false;
03618
03619 SetDParam(0, tcc.num);
03620 AddNewsItem(STR_8868_TRAIN_CRASH_DIE_IN_FIREBALL,
03621 NS_ACCIDENT_VEHICLE,
03622 v->index,
03623 0
03624 );
03625
03626 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03627 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03628 return true;
03629 }
03630
03631 static Vehicle *CheckVehicleAtSignal(Vehicle *v, void *data)
03632 {
03633 DiagDirection exitdir = *(DiagDirection *)data;
03634
03635
03636 if (v->type == VEH_TRAIN && IsFrontEngine(v) && (v->u.rail.track & TRACK_BIT_MASK) != 0 && !(v->vehstatus & VS_CRASHED)) {
03637 if (v->cur_speed <= 5 && TrainExitDir(v->direction, v->u.rail.track) == exitdir) return v;
03638 }
03639
03640 return NULL;
03641 }
03642
03643 static void TrainController(Vehicle *v, Vehicle *nomove)
03644 {
03645 Vehicle *prev;
03646
03647
03648 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03649 DiagDirection enterdir = DIAGDIR_BEGIN;
03650 bool update_signals_crossing = false;
03651
03652 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03653 if (v->u.rail.track != TRACK_BIT_WORMHOLE) {
03654
03655 if (gp.old_tile == gp.new_tile) {
03656
03657 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03658
03659 gp.x = v->x_pos;
03660 gp.y = v->y_pos;
03661 } else {
03662
03663
03664
03665 if (IsFrontEngine(v) && !TrainCheckIfLineEnds(v)) return;
03666
03667 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03668 if (HasBit(r, VETS_CANNOT_ENTER)) {
03669 goto invalid_rail;
03670 }
03671 if (HasBit(r, VETS_ENTERED_STATION)) {
03672
03673 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03674 }
03675 }
03676 } else {
03677
03678
03679
03680 Direction dir = GetNewVehicleDirectionByTile(gp.new_tile, gp.old_tile);
03681 enterdir = DirToDiagDir(dir);
03682 assert(IsValidDiagDirection(enterdir));
03683
03684
03685
03686 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03687 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03688
03689 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03690 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03691
03692 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03693 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg && prev == NULL) {
03694
03695
03696 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
03697 }
03698
03699 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03700
03701
03702
03703 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03704
03705 TrackBits chosen_track;
03706 if (prev == NULL) {
03707
03708
03709 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03710 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03711
03712
03713 if (red_signals & chosen_track && v->u.rail.force_proceed == 0) {
03714
03715 Trackdir i = FindFirstTrackdir(trackdirbits);
03716
03717
03718 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) return;
03719
03720 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03721 v->cur_speed = 0;
03722 v->subspeed = 0;
03723 v->progress = 255 - 100;
03724 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_oneway_signal * 20) return;
03725 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03726 v->cur_speed = 0;
03727 v->subspeed = 0;
03728 v->progress = 255 - 10;
03729 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_twoway_signal * 73) {
03730 DiagDirection exitdir = TrackdirToExitdir(i);
03731 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03732
03733 exitdir = ReverseDiagDir(exitdir);
03734
03735
03736 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckVehicleAtSignal)) return;
03737 }
03738 }
03739
03740
03741
03742 if (_settings_game.pf.wait_for_pbs_path == 255 && UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03743 v->load_unload_time_rem = 0;
03744 return;
03745 }
03746 goto reverse_train_direction;
03747 } else {
03748 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03749 }
03750 } else {
03751 static const TrackBits _matching_tracks[8] = {
03752 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03753 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y,
03754 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03755 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y
03756 };
03757
03758
03759 chosen_track = (TrackBits)(byte)(_matching_tracks[GetDirectionToVehicle(prev, gp.x, gp.y)] & bits);
03760 }
03761
03762
03763 assert(
03764 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03765 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03766 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03767
03768
03769 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03770 gp.x = (gp.x & ~0xF) | b[0];
03771 gp.y = (gp.y & ~0xF) | b[1];
03772 Direction chosen_dir = (Direction)b[2];
03773
03774
03775 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03776 if (HasBit(r, VETS_CANNOT_ENTER)) {
03777 goto invalid_rail;
03778 }
03779
03780 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03781 Track track = FindFirstTrack(chosen_track);
03782 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03783 if (IsFrontEngine(v) && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03784 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03785 MarkTileDirtyByTile(gp.new_tile);
03786 }
03787
03788
03789 if (v->Next() == NULL) ClearPathReservation(v, v->tile, GetVehicleTrackdir(v));
03790
03791 v->tile = gp.new_tile;
03792
03793 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03794 TrainPowerChanged(v->First());
03795 }
03796
03797 v->u.rail.track = chosen_track;
03798 assert(v->u.rail.track);
03799 }
03800
03801
03802
03803 update_signals_crossing = true;
03804
03805 if (prev == NULL) AffectSpeedByDirChange(v, chosen_dir);
03806
03807 v->direction = chosen_dir;
03808
03809 if (IsFrontEngine(v)) {
03810 v->load_unload_time_rem = 0;
03811
03812
03813 TileIndex crossing = TrainApproachingCrossingTile(v);
03814 if (crossing != INVALID_TILE && GetCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03815
03816
03817 CheckNextTrainTile(v);
03818 }
03819 }
03820 } else {
03821
03822
03823
03824 if (!(v->vehstatus & VS_HIDDEN)) {
03825 v->cur_speed =
03826 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03827 }
03828
03829 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03830
03831 if (IsFrontEngine(v)) {
03832 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03833 CheckNextTrainTile(v);
03834 }
03835 } else {
03836 v->x_pos = gp.x;
03837 v->y_pos = gp.y;
03838 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03839 continue;
03840 }
03841 }
03842
03843
03844 v->UpdateDeltaXY(v->direction);
03845
03846 v->x_pos = gp.x;
03847 v->y_pos = gp.y;
03848
03849
03850 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03851
03852 if (prev == NULL) {
03853
03854 AffectSpeedByZChange(v, old_z);
03855 }
03856
03857 if (update_signals_crossing) {
03858 if (IsFrontEngine(v)) {
03859 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03860
03861
03862
03863
03864
03865
03866
03867
03868 if ((!HasReservedTracks(gp.new_tile, v->u.rail.track) &&
03869 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->u.rail.track))) ||
03870 !TryPathReserve(v)) {
03871 MarkTrainAsStuck(v);
03872 }
03873 }
03874 }
03875
03876
03877
03878 if (v->Next() == NULL) {
03879 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03880 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03881 }
03882 }
03883
03884
03885 if (IsFrontEngine(v) && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03886 }
03887 return;
03888
03889 invalid_rail:
03890
03891 if (prev != NULL) error("Disconnecting train");
03892
03893 reverse_train_direction:
03894 v->load_unload_time_rem = 0;
03895 v->cur_speed = 0;
03896 v->subspeed = 0;
03897 ReverseTrainDirection(v);
03898 }
03899
03905 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03906 {
03907 TrackBits *trackbits = (TrackBits *)data;
03908
03909 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03910 if ((v->u.rail.track & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03911
03912 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03913 } else {
03914 *trackbits |= v->u.rail.track;
03915 }
03916 }
03917
03918 return NULL;
03919 }
03920
03928 static void DeleteLastWagon(Vehicle *v)
03929 {
03930 Vehicle *first = v->First();
03931
03932
03933
03934
03935 Vehicle *u = v;
03936 for (; v->Next() != NULL; v = v->Next()) u = v;
03937 u->SetNext(NULL);
03938
03939 if (first != v) {
03940
03941 TrainConsistChanged(first, false);
03942
03943
03944 if (first->u.rail.track == TRACK_BIT_DEPOT) {
03945 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
03946 }
03947 }
03948
03949
03950 TrackBits trackbits = v->u.rail.track;
03951 TileIndex tile = v->tile;
03952 Owner owner = v->owner;
03953
03954 delete v;
03955 v = NULL;
03956
03957 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03958
03959 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03960 }
03961
03962 Track track = TrackBitsToTrack(trackbits);
03963 if (HasReservedTracks(tile, trackbits)) {
03964 UnreserveRailTrack(tile, track);
03965
03966
03967 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03968 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03969
03970
03971 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03972 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03973 if (HasBit(remaining_trackbits, t)) {
03974 TryReserveRailTrack(tile, t);
03975 }
03976 }
03977 }
03978
03979
03980 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03981
03982
03983 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03984 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03985 } else {
03986 SetSignalsOnBothDir(tile, track, owner);
03987 }
03988 }
03989
03990 static void ChangeTrainDirRandomly(Vehicle *v)
03991 {
03992 static const DirDiff delta[] = {
03993 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03994 };
03995
03996 do {
03997
03998 if (!(v->vehstatus & VS_HIDDEN)) {
03999 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
04000 v->UpdateDeltaXY(v->direction);
04001 v->cur_image = v->GetImage(v->direction);
04002
04003
04004
04005 if (v->u.rail.track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
04006 }
04007 } while ((v = v->Next()) != NULL);
04008 }
04009
04010 static void HandleCrashedTrain(Vehicle *v)
04011 {
04012 int state = ++v->u.rail.crash_anim_pos;
04013
04014 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
04015 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
04016 }
04017
04018 uint32 r;
04019 if (state <= 200 && Chance16R(1, 7, r)) {
04020 int index = (r * 10 >> 16);
04021
04022 Vehicle *u = v;
04023 do {
04024 if (--index < 0) {
04025 r = Random();
04026
04027 CreateEffectVehicleRel(u,
04028 GB(r, 8, 3) + 2,
04029 GB(r, 16, 3) + 2,
04030 GB(r, 0, 3) + 5,
04031 EV_EXPLOSION_SMALL);
04032 break;
04033 }
04034 } while ((u = u->Next()) != NULL);
04035 }
04036
04037 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
04038
04039 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
04040 DeleteLastWagon(v);
04041 InvalidateWindow(WC_REPLACE_VEHICLE, (v->group_id << 16) | VEH_TRAIN);
04042 }
04043 }
04044
04045 static void HandleBrokenTrain(Vehicle *v)
04046 {
04047 if (v->breakdown_ctr != 1) {
04048 v->breakdown_ctr = 1;
04049 v->cur_speed = 0;
04050
04051 if (v->breakdowns_since_last_service != 255)
04052 v->breakdowns_since_last_service++;
04053
04054 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04055 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
04056 v->MarkDirty();
04057
04058 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
04059 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
04060 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
04061 }
04062
04063 if (!(v->vehstatus & VS_HIDDEN)) {
04064 Vehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
04065 if (u != NULL) u->u.effect.animation_state = v->breakdown_delay * 2;
04066 }
04067 }
04068
04069 if (!(v->tick_counter & 3)) {
04070 if (!--v->breakdown_delay) {
04071 v->breakdown_ctr = 0;
04072 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04073 v->MarkDirty();
04074 }
04075 }
04076 }
04077
04079 static const uint16 _breakdown_speeds[16] = {
04080 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
04081 };
04082
04083
04091 static bool TrainApproachingLineEnd(Vehicle *v, bool signal)
04092 {
04093
04094 uint x = v->x_pos & 0xF;
04095 uint y = v->y_pos & 0xF;
04096
04097
04098
04099 switch (v->direction) {
04100 case DIR_N : x = ~x + ~y + 25; break;
04101 case DIR_NW: x = y;
04102 case DIR_NE: x = ~x + 16; break;
04103 case DIR_E : x = ~x + y + 9; break;
04104 case DIR_SE: x = y; break;
04105 case DIR_S : x = x + y - 7; break;
04106 case DIR_W : x = ~y + x + 9; break;
04107 default: break;
04108 }
04109
04110
04111 if (!signal && x + (v->u.rail.cached_veh_length + 1) / 2 >= TILE_SIZE) {
04112
04113 v->cur_speed = 0;
04114 ReverseTrainDirection(v);
04115 return false;
04116 }
04117
04118
04119 v->vehstatus |= VS_TRAIN_SLOWING;
04120 uint16 break_speed = _breakdown_speeds[x & 0xF];
04121 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04122
04123 return true;
04124 }
04125
04126
04132 static bool TrainCanLeaveTile(const Vehicle *v)
04133 {
04134
04135 if (v->u.rail.track == TRACK_BIT_WORMHOLE || v->u.rail.track == TRACK_BIT_DEPOT) return false;
04136
04137 TileIndex tile = v->tile;
04138
04139
04140 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
04141 DiagDirection dir = GetTunnelBridgeDirection(tile);
04142 if (DiagDirToDir(dir) == v->direction) return false;
04143 }
04144
04145
04146 if (IsRailDepotTile(tile)) {
04147 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
04148 if (DiagDirToDir(dir) == v->direction) return false;
04149 }
04150
04151 return true;
04152 }
04153
04154
04162 static TileIndex TrainApproachingCrossingTile(const Vehicle *v)
04163 {
04164 assert(IsFrontEngine(v));
04165 assert(!(v->vehstatus & VS_CRASHED));
04166
04167 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
04168
04169 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04170 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04171
04172
04173 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
04174 !CheckCompatibleRail(v, tile)) {
04175 return INVALID_TILE;
04176 }
04177
04178 return tile;
04179 }
04180
04181
04188 static bool TrainCheckIfLineEnds(Vehicle *v)
04189 {
04190
04191
04192 int t = v->breakdown_ctr;
04193 if (t > 1) {
04194 v->vehstatus |= VS_TRAIN_SLOWING;
04195
04196 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
04197 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04198 } else {
04199 v->vehstatus &= ~VS_TRAIN_SLOWING;
04200 }
04201
04202 if (!TrainCanLeaveTile(v)) return true;
04203
04204
04205 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04206
04207 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04208
04209
04210 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
04211 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
04212
04213 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
04214 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
04215
04216
04217
04218
04219 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
04220 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
04221 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
04222 }
04223
04224
04225 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
04226 return TrainApproachingLineEnd(v, false);
04227 }
04228
04229
04230 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
04231
04232
04233 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
04234
04235 return true;
04236 }
04237
04238
04239 static void TrainLocoHandler(Vehicle *v, bool mode)
04240 {
04241
04242 if (v->vehstatus & VS_CRASHED) {
04243 if (!mode) HandleCrashedTrain(v);
04244 return;
04245 }
04246
04247 if (v->u.rail.force_proceed != 0) {
04248 v->u.rail.force_proceed--;
04249 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04250 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04251 }
04252
04253
04254 if (v->breakdown_ctr != 0) {
04255 if (v->breakdown_ctr <= 2) {
04256 HandleBrokenTrain(v);
04257 return;
04258 }
04259 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
04260 }
04261
04262 if (HasBit(v->u.rail.flags, VRF_REVERSING) && v->cur_speed == 0) {
04263 ReverseTrainDirection(v);
04264 }
04265
04266
04267 if (v->vehstatus & VS_STOPPED && v->cur_speed == 0) return;
04268
04269 bool valid_order = v->current_order.IsValid() && v->current_order.GetType() != OT_CONDITIONAL;
04270 if (ProcessOrders(v) && CheckReverseTrain(v)) {
04271 v->load_unload_time_rem = 0;
04272 v->cur_speed = 0;
04273 v->subspeed = 0;
04274 ReverseTrainDirection(v);
04275 return;
04276 }
04277
04278 v->HandleLoading(mode);
04279
04280 if (v->current_order.IsType(OT_LOADING)) return;
04281
04282 if (CheckTrainStayInDepot(v)) return;
04283
04284 if (!mode) HandleLocomotiveSmokeCloud(v);
04285
04286
04287 if (!valid_order && v->current_order.IsValid()) {
04288 CheckNextTrainTile(v);
04289 }
04290
04291
04292 if (!mode && HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
04293 ++v->load_unload_time_rem;
04294
04295
04296 bool turn_around = v->load_unload_time_rem % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.wait_for_pbs_path < 255;
04297
04298 if (!turn_around && v->load_unload_time_rem % _settings_game.pf.path_backoff_interval != 0 && v->u.rail.force_proceed == 0) return;
04299 if (!TryPathReserve(v)) {
04300
04301 if (turn_around) ReverseTrainDirection(v);
04302
04303 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK) && v->load_unload_time_rem > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
04304
04305 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
04306 SetDParam(0, v->index);
04307 AddNewsItem(
04308 STR_TRAIN_IS_STUCK,
04309 NS_ADVICE,
04310 v->index,
04311 0);
04312 }
04313 v->load_unload_time_rem = 0;
04314 }
04315
04316 if (v->u.rail.force_proceed == 0) return;
04317 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04318 v->load_unload_time_rem = 0;
04319 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04320 }
04321 }
04322
04323 if (v->current_order.IsType(OT_LEAVESTATION)) {
04324 v->current_order.Free();
04325 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04326 return;
04327 }
04328
04329 int j = UpdateTrainSpeed(v);
04330
04331
04332 if (v->cur_speed == 0 && v->u.rail.last_speed == 0 && v->vehstatus & VS_STOPPED) {
04333 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04334 }
04335
04336 int adv_spd = (v->direction & 1) ? 192 : 256;
04337 if (j < adv_spd) {
04338
04339 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04340 } else {
04341 TrainCheckIfLineEnds(v);
04342
04343 for (;;) {
04344 j -= adv_spd;
04345 TrainController(v, NULL);
04346
04347 if (CheckTrainCollision(v)) break;
04348
04349 adv_spd = (v->direction & 1) ? 192 : 256;
04350
04351
04352 if (j < adv_spd || v->cur_speed == 0) break;
04353
04354 OrderType order_type = v->current_order.GetType();
04355
04356 if ((order_type == OT_GOTO_WAYPOINT &&
04357 v->dest_tile == v->tile) ||
04358 (order_type == OT_GOTO_STATION &&
04359 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
04360 IsTileType(v->tile, MP_STATION) &&
04361 v->current_order.GetDestination() == GetStationIndex(v->tile))) {
04362 ProcessOrders(v);
04363 }
04364 }
04365 SetLastSpeed(v, v->cur_speed);
04366 }
04367
04368 for (Vehicle *u = v; u != NULL; u = u->Next()) {
04369 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04370
04371 u->UpdateViewport(false, false);
04372 }
04373
04374 if (v->progress == 0) v->progress = j;
04375 }
04376
04377
04378
04379 Money Train::GetRunningCost() const
04380 {
04381 Money cost = 0;
04382 const Vehicle *v = this;
04383
04384 do {
04385 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
04386
04387 byte cost_factor = GetVehicleProperty(v, 0x0D, rvi->running_cost);
04388 if (cost_factor == 0) continue;
04389
04390
04391 if (IsMultiheaded(v)) cost_factor /= 2;
04392
04393 cost += cost_factor * GetPriceByIndex(rvi->running_cost_class);
04394 } while ((v = GetNextVehicle(v)) != NULL);
04395
04396 return cost;
04397 }
04398
04399
04400 void Train::Tick()
04401 {
04402 if (_age_cargo_skip_counter == 0) this->cargo.AgeCargo();
04403
04404 this->tick_counter++;
04405
04406 if (IsFrontEngine(this)) {
04407 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04408 this->current_order_time++;
04409
04410 TrainLocoHandler(this, false);
04411
04412
04413 if (this->type == VEH_TRAIN && IsFrontEngine(this))
04414 TrainLocoHandler(this, true);
04415 } else if (IsFreeWagon(this) && HASBITS(this->vehstatus, VS_CRASHED)) {
04416
04417 if (++this->u.rail.crash_anim_pos >= 4400) delete this;
04418 }
04419 }
04420
04421 static void CheckIfTrainNeedsService(Vehicle *v)
04422 {
04423 static const uint MAX_ACCEPTABLE_DEPOT_DIST = 16;
04424
04425 if (_settings_game.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04426 if (v->IsInDepot()) {
04427 VehicleServiceInDepot(v);
04428 return;
04429 }
04430
04431 TrainFindDepotData tfdd = FindClosestTrainDepot(v, MAX_ACCEPTABLE_DEPOT_DIST);
04432
04433 if (tfdd.best_length == UINT_MAX || tfdd.best_length > MAX_ACCEPTABLE_DEPOT_DIST) {
04434 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04435
04436
04437
04438 v->current_order.MakeDummy();
04439 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04440 }
04441 return;
04442 }
04443
04444 const Depot *depot = GetDepotByTile(tfdd.tile);
04445
04446 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04447 v->current_order.GetDestination() != depot->index &&
04448 !Chance16(3, 16)) {
04449 return;
04450 }
04451
04452 v->current_order.MakeGoToDepot(depot->index, ODTFB_SERVICE);
04453 v->dest_tile = tfdd.tile;
04454 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04455 }
04456
04457 void Train::OnNewDay()
04458 {
04459 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04460
04461 if (IsFrontEngine(this)) {
04462 CheckVehicleBreakdown(this);
04463 AgeVehicle(this);
04464
04465 CheckIfTrainNeedsService(this);
04466
04467 CheckOrders(this);
04468
04469
04470 if (this->current_order.IsType(OT_GOTO_STATION)) {
04471 TileIndex tile = GetStation(this->current_order.GetDestination())->train_tile;
04472 if (tile != INVALID_TILE) this->dest_tile = tile;
04473 }
04474
04475 if (this->running_ticks != 0) {
04476
04477 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04478
04479 this->profit_this_year -= cost.GetCost();
04480 this->running_ticks = 0;
04481
04482 SubtractMoneyFromCompanyFract(this->owner, cost);
04483
04484 InvalidateWindow(WC_VEHICLE_DETAILS, this->index);
04485 InvalidateWindowClasses(WC_TRAINS_LIST);
04486 }
04487 } else if (IsTrainEngine(this)) {
04488
04489 AgeVehicle(this);
04490 }
04491 }
04492
04493 void InitializeTrains()
04494 {
04495 _age_cargo_skip_counter = 1;
04496 }