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 if (IsFreeWagon(v)) return;
00969
00970 assert(IsFrontEngine(v));
00971
00972 for (; v != NULL; v = GetNextVehicle(v)) {
00973 if (!IsMultiheaded(v) || !IsTrainEngine(v)) continue;
00974
00975
00976 Vehicle *u;
00977 for (u = v; u->Next() != NULL && !IsTrainEngine(u->Next()); u = u->Next()) {}
00978
00979 if (u == v->u.rail.other_multiheaded_part) continue;
00980 AddWagonToConsist(v->u.rail.other_multiheaded_part, u);
00981 }
00982 }
00983
00993 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00994 {
00995 VehicleID s = GB(p1, 0, 16);
00996 VehicleID d = GB(p1, 16, 16);
00997
00998 if (!IsValidVehicleID(s)) return CMD_ERROR;
00999
01000 Vehicle *src = GetVehicle(s);
01001
01002 if (src->type != VEH_TRAIN || !CheckOwnership(src->owner)) return CMD_ERROR;
01003
01004
01005 if (HASBITS(src->vehstatus, VS_CRASHED)) return CMD_ERROR;
01006
01007
01008 Vehicle *dst;
01009 if (d == INVALID_VEHICLE) {
01010 dst = IsTrainEngine(src) ? NULL : FindGoodVehiclePos(src);
01011 } else {
01012 if (!IsValidVehicleID(d)) return CMD_ERROR;
01013 dst = GetVehicle(d);
01014 if (dst->type != VEH_TRAIN || !CheckOwnership(dst->owner)) return CMD_ERROR;
01015
01016
01017 if (HASBITS(dst->vehstatus, VS_CRASHED)) return CMD_ERROR;
01018 }
01019
01020
01021 while (IsArticulatedPart(src)) src = src->Previous();
01022 if (dst != NULL) {
01023 while (IsArticulatedPart(dst)) dst = dst->Previous();
01024 }
01025
01026
01027 if (src == dst) return CommandCost();
01028
01029
01030 Vehicle *src_head = src->First();
01031 Vehicle *dst_head;
01032 if (dst != NULL) {
01033 dst_head = dst->First();
01034 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01035
01036 dst = GetLastEnginePart(dst);
01037 } else {
01038 dst_head = NULL;
01039 }
01040
01041 if (IsRearDualheaded(src)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01042
01043
01044 if (HasBit(p2, 0) && src_head == dst_head) return CommandCost();
01045
01046
01047 int src_len = CheckTrainStoppedInDepot(src_head);
01048 if (src_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01049
01050 if ((flags & DC_AUTOREPLACE) == 0) {
01051
01052 int max_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
01053
01054
01055 if (src_head != dst_head) {
01056 int dst_len = 0;
01057
01058 if (dst_head != NULL) {
01059
01060 dst_len = CheckTrainStoppedInDepot(dst_head);
01061 if (dst_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01062 }
01063
01064 if (src_head == src && !HasBit(p2, 0)) {
01065
01066
01067
01068
01069 const Vehicle *u = GetNextVehicle(src_head);
01070 if (u != NULL && IsTrainEngine(u) && (src_len - 1) > max_len) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01071 }
01072
01073
01074
01075 if (HasBit(p2, 0)) {
01076 const Vehicle *u;
01077 for (u = src_head; u != src && u != NULL; u = GetNextVehicle(u))
01078 src_len--;
01079 } else {
01080
01081 src_len = 1;
01082 }
01083
01084 if (src_len + dst_len > max_len) {
01085
01086 if (dst_head != NULL && IsFrontEngine(dst_head)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01087
01088 if (dst_head == NULL && IsTrainEngine(src)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01089 }
01090 } else {
01091
01092 if (src_len > max_len && src == src_head && IsTrainEngine(GetNextVehicle(src_head)))
01093 return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01094 }
01095 }
01096
01097
01098 if (dst == NULL && !IsFrontEngine(src) && IsTrainEngine(src)) {
01099 UnitID unit_num = ((flags & DC_AUTOREPLACE) != 0 ? 0 : GetFreeUnitNumber(VEH_TRAIN));
01100 if (unit_num > _settings_game.vehicle.max_trains)
01101 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01102
01103 if (flags & DC_EXEC) src->unitnumber = unit_num;
01104 }
01105
01106
01107 if (!HasBit(p2, 0) && (IsFreeWagon(src) || (IsFrontEngine(src) && dst == NULL)) && (flags & DC_AUTOREPLACE) == 0) {
01108 Vehicle *second = GetNextUnit(src);
01109 if (second != NULL && IsTrainEngine(second) && GetFreeUnitNumber(VEH_TRAIN) > _settings_game.vehicle.max_trains) {
01110 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01111 }
01112 }
01113
01114
01115
01116
01117
01118
01119
01120
01121 bool src_in_dst = false;
01122 for (Vehicle *v = dst_head; !src_in_dst && v != NULL; v = v->Next()) src_in_dst = v == src;
01123
01124
01125
01126
01127
01128
01129
01130
01131
01132 if (dst_head != NULL && !src_in_dst && (flags & DC_AUTOREPLACE) == 0) {
01133
01134
01135
01136
01137
01138
01139
01140
01141
01142 Vehicle *dst_tail = dst_head;
01143 while (dst_tail->Next() != NULL) dst_tail = dst_tail->Next();
01144
01145 Vehicle *orig_tail = dst_tail;
01146 Vehicle *next_to_attach = src;
01147 Vehicle *src_previous = src->Previous();
01148
01149 while (next_to_attach != NULL) {
01150
01151 if (!IsArticulatedPart(next_to_attach) && !IsRearDualheaded(next_to_attach)) {
01152
01153 EngineID first_engine = next_to_attach->u.rail.first_engine;
01154 next_to_attach->u.rail.first_engine = INVALID_ENGINE;
01155
01156 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, dst_head->engine_type, next_to_attach, dst_head);
01157
01158
01159 next_to_attach->u.rail.first_engine = first_engine;
01160
01161 if (callback != CALLBACK_FAILED) {
01162 StringID error = STR_NULL;
01163
01164 if (callback == 0xFD) error = STR_INCOMPATIBLE_RAIL_TYPES;
01165 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(dst_head->engine_type), 0xD000 + callback);
01166
01167 if (error != STR_NULL) {
01168
01169
01170
01171
01172
01173
01174
01175
01176
01177 dst_tail->SetNext(next_to_attach);
01178 orig_tail->SetNext(NULL);
01179 if (src_previous != NULL) src_previous->SetNext(src);
01180
01181 return_cmd_error(error);
01182 }
01183 }
01184 }
01185
01186
01187 if (!HasBit(p2, 0)) break;
01188
01189
01190
01191
01192
01193
01194
01195 Vehicle *to_add = next_to_attach;
01196 next_to_attach = next_to_attach->Next();
01197
01198 to_add->SetNext(NULL);
01199 dst_tail->SetNext(to_add);
01200 dst_tail = dst_tail->Next();
01201 }
01202
01203
01204
01205
01206
01207
01208
01209
01210 orig_tail->SetNext(NULL);
01211 if (src_previous != NULL) src_previous->SetNext(src);
01212 }
01213
01214
01215 if (flags & DC_EXEC) {
01216
01217
01218 if (IsFrontEngine(src) && !IsDefaultGroupID(src->group_id)) {
01219 Vehicle *v = GetNextVehicle(src);
01220
01221 if (v != NULL && IsTrainEngine(v)) {
01222 v->group_id = src->group_id;
01223 src->group_id = DEFAULT_GROUP;
01224 }
01225 }
01226
01227 if (HasBit(p2, 0)) {
01228
01229 if (src != src_head) {
01230 Vehicle *v = src_head;
01231 while (GetNextVehicle(v) != src) v = GetNextVehicle(v);
01232 GetLastEnginePart(v)->SetNext(NULL);
01233 } else {
01234 InvalidateWindowData(WC_VEHICLE_DEPOT, src_head->tile);
01235 src_head = NULL;
01236 }
01237 } else {
01238
01239 if (src_head == dst_head) dst_head = NULL;
01240
01241 src_head = UnlinkWagon(src, src_head);
01242 GetLastEnginePart(src)->SetNext(NULL);
01243 }
01244
01245 if (dst == NULL) {
01246
01247 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01248
01249
01250 if (IsTrainEngine(src)) {
01251 if (!IsFrontEngine(src)) {
01252
01253 SetFrontEngine(src);
01254 assert(src->orders.list == NULL);
01255
01256
01257 if (!IsDefaultGroupID(src->group_id) && IsValidGroupID(src->group_id)) {
01258 GetGroup(src->group_id)->num_engines[src->engine_type]--;
01259 }
01260
01261
01262 src->group_id = DEFAULT_GROUP;
01263 }
01264 } else {
01265 SetFreeWagon(src);
01266 }
01267 dst_head = src;
01268 } else {
01269 if (IsFrontEngine(src)) {
01270
01271 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01272 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01273 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01274 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01275 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01276 DeleteVehicleOrders(src);
01277 RemoveVehicleFromGroup(src);
01278 }
01279
01280 if (IsFrontEngine(src) || IsFreeWagon(src)) {
01281 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01282 ClearFrontEngine(src);
01283 ClearFreeWagon(src);
01284 src->unitnumber = 0;
01285 }
01286
01287
01288 {
01289 Vehicle *v;
01290
01291 for (v = src; GetNextVehicle(v) != NULL; v = GetNextVehicle(v)) {}
01292 GetLastEnginePart(v)->SetNext(dst->Next());
01293 }
01294 dst->SetNext(src);
01295 }
01296
01297 if (src->u.rail.other_multiheaded_part != NULL) {
01298 if (src->u.rail.other_multiheaded_part == src_head) {
01299 src_head = src_head->Next();
01300 }
01301 AddWagonToConsist(src->u.rail.other_multiheaded_part, src);
01302 }
01303
01304
01305
01306
01307 if (src_head != NULL && !IsFrontEngine(src_head) && IsTrainEngine(src_head)) {
01308
01309
01310 const GroupID tmp_g = src_head->group_id;
01311 CmdMoveRailVehicle(0, flags, src_head->index | (INVALID_VEHICLE << 16), 1, text);
01312 SetTrainGroupID(src_head, tmp_g);
01313 src_head = NULL;
01314 }
01315
01316 if (src_head != NULL) {
01317 NormaliseTrainConsist(src_head);
01318 TrainConsistChanged(src_head, false);
01319 UpdateTrainGroupID(src_head);
01320 if (IsFrontEngine(src_head)) {
01321
01322 InvalidateWindow(WC_VEHICLE_REFIT, src_head->index);
01323 InvalidateWindowWidget(WC_VEHICLE_VIEW, src_head->index, VVW_WIDGET_REFIT_VEH);
01324 }
01325
01326 InvalidateWindow(WC_VEHICLE_DEPOT, src_head->tile);
01327 }
01328
01329 if (dst_head != NULL) {
01330 NormaliseTrainConsist(dst_head);
01331 TrainConsistChanged(dst_head, false);
01332 UpdateTrainGroupID(dst_head);
01333 if (IsFrontEngine(dst_head)) {
01334
01335 InvalidateWindowWidget(WC_VEHICLE_VIEW, dst_head->index, VVW_WIDGET_REFIT_VEH);
01336 InvalidateWindow(WC_VEHICLE_REFIT, dst_head->index);
01337 }
01338
01339 InvalidateWindow(WC_VEHICLE_DEPOT, dst_head->tile);
01340 }
01341
01342 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01343 }
01344
01345 return CommandCost();
01346 }
01347
01357 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01358 {
01359
01360 Window *w = NULL;
01361
01362 if (!IsValidVehicleID(p1) || p2 > 1) return CMD_ERROR;
01363
01364 Vehicle *v = GetVehicle(p1);
01365
01366 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01367
01368 if (HASBITS(v->vehstatus, VS_CRASHED)) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
01369
01370 while (IsArticulatedPart(v)) v = v->Previous();
01371 Vehicle *first = v->First();
01372
01373
01374 if (CheckTrainStoppedInDepot(first) < 0) {
01375 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01376 }
01377
01378 if (IsRearDualheaded(v)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01379
01380 if (flags & DC_EXEC) {
01381 if (v == first && IsFrontEngine(first)) {
01382 DeleteWindowById(WC_VEHICLE_VIEW, first->index);
01383 DeleteWindowById(WC_VEHICLE_ORDERS, first->index);
01384 DeleteWindowById(WC_VEHICLE_REFIT, first->index);
01385 DeleteWindowById(WC_VEHICLE_DETAILS, first->index);
01386 DeleteWindowById(WC_VEHICLE_TIMETABLE, first->index);
01387 }
01388 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
01389 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01390 }
01391
01392 CommandCost cost(EXPENSES_NEW_VEHICLES);
01393 switch (p2) {
01394 case 0: {
01395 bool switch_engine = false;
01396
01397
01398
01399 Vehicle *rear = (IsMultiheaded(v) &&
01400 IsTrainEngine(v)) ? v->u.rail.other_multiheaded_part : NULL;
01401
01402 if (rear != NULL) {
01403 cost.AddCost(-rear->value);
01404 if (flags & DC_EXEC) {
01405 UnlinkWagon(rear, first);
01406 delete rear;
01407 }
01408 }
01409
01410
01411
01412 if (v == first) {
01413 Vehicle *new_f = GetNextVehicle(first);
01414
01415
01416
01417
01418 if (new_f != NULL && IsTrainEngine(new_f)) {
01419 if (IsTrainEngine(first)) {
01420
01421 switch_engine = true;
01422
01423 if (flags & DC_EXEC) {
01424
01425 new_f->group_id = first->group_id;
01426 first->group_id = DEFAULT_GROUP;
01427
01428
01429 new_f->orders.list = first->orders.list;
01430 new_f->AddToShared(first);
01431 DeleteVehicleOrders(first);
01432
01433
01434 new_f->CopyVehicleConfigAndStatistics(first);
01435
01436
01437 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_f);
01438 }
01439 } else {
01440
01441
01442
01443 cost.AddCost(DoCommand(0, new_f->index | INVALID_VEHICLE << 16, 1, flags, CMD_MOVE_RAIL_VEHICLE));
01444 if (cost.Failed()) return cost;
01445 }
01446 }
01447 }
01448
01449
01450 cost.AddCost(-v->value);
01451 if (flags & DC_EXEC) {
01452 first = UnlinkWagon(v, first);
01453 delete v;
01454
01455
01456
01457 if (switch_engine) SetFrontEngine(first);
01458
01459
01460 if (first != NULL) {
01461 NormaliseTrainConsist(first);
01462 TrainConsistChanged(first, false);
01463 UpdateTrainGroupID(first);
01464 if (IsFrontEngine(first)) InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01465 }
01466
01467 }
01468 } break;
01469 case 1: {
01470
01471
01472
01473 for (Vehicle *tmp; v != NULL; v = tmp) {
01474 tmp = GetNextVehicle(v);
01475
01476 if (IsMultiheaded(v)) {
01477 if (IsTrainEngine(v)) {
01478
01479 Vehicle *rear = v->u.rail.other_multiheaded_part;
01480
01481 if (rear != NULL) {
01482 cost.AddCost(-rear->value);
01483
01484
01485
01486
01487
01488
01489
01490 if (tmp == rear) tmp = GetNextVehicle(tmp);
01491
01492 if (flags & DC_EXEC) {
01493 first = UnlinkWagon(rear, first);
01494 delete rear;
01495 }
01496 }
01497 } else if (v->u.rail.other_multiheaded_part != NULL) {
01498
01499 continue;
01500 }
01501 }
01502
01503 cost.AddCost(-v->value);
01504 if (flags & DC_EXEC) {
01505 first = UnlinkWagon(v, first);
01506 delete v;
01507 }
01508 }
01509
01510
01511 if (flags & DC_EXEC && first != NULL) {
01512 NormaliseTrainConsist(first);
01513 TrainConsistChanged(first, false);
01514 UpdateTrainGroupID(first);
01515 InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01516 }
01517 } break;
01518 }
01519 return cost;
01520 }
01521
01522 void Train::UpdateDeltaXY(Direction direction)
01523 {
01524 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01525 static const uint32 _delta_xy_table[8] = {
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 MKIT(3, 3, -1, -1),
01531 MKIT(3, 7, -1, -3),
01532 MKIT(3, 3, -1, -1),
01533 MKIT(7, 3, -3, -1),
01534 };
01535 #undef MKIT
01536
01537 uint32 x = _delta_xy_table[direction];
01538 this->x_offs = GB(x, 0, 8);
01539 this->y_offs = GB(x, 8, 8);
01540 this->x_extent = GB(x, 16, 8);
01541 this->y_extent = GB(x, 24, 8);
01542 this->z_extent = 6;
01543 }
01544
01545 static inline void SetLastSpeed(Vehicle *v, int spd)
01546 {
01547 int old = v->u.rail.last_speed;
01548 if (spd != old) {
01549 v->u.rail.last_speed = spd;
01550 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01551 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01552 }
01553 }
01554 }
01555
01557 static void MarkTrainAsStuck(Vehicle *v)
01558 {
01559 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01560
01561 SetBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01562
01563
01564 if (v->current_order.IsType(OT_LOADING)) return;
01565
01566 v->load_unload_time_rem = 0;
01567
01568
01569 v->cur_speed = 0;
01570 v->subspeed = 0;
01571 SetLastSpeed(v, 0);
01572
01573 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01574 }
01575 }
01576
01577 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01578 {
01579 uint16 flag1 = *swap_flag1;
01580 uint16 flag2 = *swap_flag2;
01581
01582
01583 ClrBit(*swap_flag1, VRF_GOINGUP);
01584 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01585 ClrBit(*swap_flag2, VRF_GOINGUP);
01586 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01587
01588
01589 if (HasBit(flag1, VRF_GOINGUP)) {
01590 SetBit(*swap_flag2, VRF_GOINGDOWN);
01591 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01592 SetBit(*swap_flag2, VRF_GOINGUP);
01593 }
01594 if (HasBit(flag2, VRF_GOINGUP)) {
01595 SetBit(*swap_flag1, VRF_GOINGDOWN);
01596 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01597 SetBit(*swap_flag1, VRF_GOINGUP);
01598 }
01599 }
01600
01601 static void ReverseTrainSwapVeh(Vehicle *v, int l, int r)
01602 {
01603 Vehicle *a, *b;
01604
01605
01606 for (a = v; l != 0; l--) a = a->Next();
01607 for (b = v; r != 0; r--) b = b->Next();
01608
01609 if (a != b) {
01610
01611 {
01612 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01613 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01614 a->vehstatus = tmp;
01615 }
01616
01617 Swap(a->u.rail.track, b->u.rail.track);
01618 Swap(a->direction, b->direction);
01619
01620
01621 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01622 if (b->u.rail.track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01623
01624 Swap(a->x_pos, b->x_pos);
01625 Swap(a->y_pos, b->y_pos);
01626 Swap(a->tile, b->tile);
01627 Swap(a->z_pos, b->z_pos);
01628
01629 SwapTrainFlags(&a->u.rail.flags, &b->u.rail.flags);
01630
01631
01632 a->UpdateViewport(true, true);
01633 b->UpdateViewport(true, true);
01634
01635
01636 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01637 if (b->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01638 } else {
01639 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01640 a->UpdateViewport(true, true);
01641
01642 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01643 }
01644
01645
01646 TrainPowerChanged(v);
01647 }
01648
01649
01655 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01656 {
01657 return (v->type == VEH_TRAIN) ? v : NULL;
01658 }
01659
01660
01667 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01668 {
01669
01670 if (v->type != VEH_TRAIN || !IsFrontEngine(v) || v->vehstatus & VS_CRASHED) return NULL;
01671
01672 TileIndex tile = *(TileIndex*)data;
01673
01674 if (TrainApproachingCrossingTile(v) != tile) return NULL;
01675
01676 return v;
01677 }
01678
01679
01686 static bool TrainApproachingCrossing(TileIndex tile)
01687 {
01688 assert(IsLevelCrossingTile(tile));
01689
01690 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01691 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01692
01693 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01694
01695 dir = ReverseDiagDir(dir);
01696 tile_from = tile + TileOffsByDiagDir(dir);
01697
01698 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01699 }
01700
01701
01708 void UpdateLevelCrossing(TileIndex tile, bool sound)
01709 {
01710 assert(IsLevelCrossingTile(tile));
01711
01712
01713 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || GetCrossingReservation(tile);
01714
01715 if (new_state != IsCrossingBarred(tile)) {
01716 if (new_state && sound) {
01717 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01718 }
01719 SetCrossingBarred(tile, new_state);
01720 MarkTileDirtyByTile(tile);
01721 }
01722 }
01723
01724
01730 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01731 {
01732 if (!IsCrossingBarred(tile)) {
01733 BarCrossing(tile);
01734 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01735 MarkTileDirtyByTile(tile);
01736 }
01737 }
01738
01739
01745 static void AdvanceWagonsBeforeSwap(Vehicle *v)
01746 {
01747 Vehicle *base = v;
01748 Vehicle *first = base;
01749 Vehicle *last = GetLastVehicleInChain(v);
01750 uint length = CountVehiclesInChain(v);
01751
01752 while (length > 2) {
01753 last = last->Previous();
01754 first = first->Next();
01755
01756 int differential = base->u.rail.cached_veh_length - last->u.rail.cached_veh_length;
01757
01758
01759
01760 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01761
01762 base = first;
01763 length -= 2;
01764 }
01765 }
01766
01767
01773 static void AdvanceWagonsAfterSwap(Vehicle *v)
01774 {
01775
01776 Vehicle *dep = v;
01777 while (dep->Next() != NULL && (dep->u.rail.track == TRACK_BIT_DEPOT || dep->Next()->u.rail.track != TRACK_BIT_DEPOT)) {
01778 dep = dep->Next();
01779 }
01780
01781 Vehicle *leave = dep->Next();
01782
01783 if (leave != NULL) {
01784
01785 int d = TicksToLeaveDepot(dep);
01786
01787 if (d <= 0) {
01788 leave->vehstatus &= ~VS_HIDDEN;
01789 leave->u.rail.track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01790 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01791 }
01792 } else {
01793 dep = NULL;
01794 }
01795
01796 Vehicle *base = v;
01797 Vehicle *first = base;
01798 Vehicle *last = GetLastVehicleInChain(v);
01799 uint length = CountVehiclesInChain(v);
01800
01801
01802
01803 bool nomove = (dep == NULL);
01804
01805 while (length > 2) {
01806
01807
01808 if (base == dep) break;
01809
01810
01811 if (last == dep) nomove = true;
01812
01813 last = last->Previous();
01814 first = first->Next();
01815
01816 int differential = last->u.rail.cached_veh_length - base->u.rail.cached_veh_length;
01817
01818
01819 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01820
01821 base = first;
01822 length -= 2;
01823 }
01824 }
01825
01826
01827 static void ReverseTrainDirection(Vehicle *v)
01828 {
01829 if (IsRailDepotTile(v->tile)) {
01830 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01831 }
01832
01833
01834 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01835
01836
01837 TileIndex crossing = TrainApproachingCrossingTile(v);
01838
01839
01840 int r = CountVehiclesInChain(v) - 1;
01841
01842 AdvanceWagonsBeforeSwap(v);
01843
01844
01845 int l = 0;
01846 do {
01847 ReverseTrainSwapVeh(v, l++, r--);
01848 } while (l <= r);
01849
01850 AdvanceWagonsAfterSwap(v);
01851
01852 if (IsRailDepotTile(v->tile)) {
01853 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01854 }
01855
01856 ToggleBit(v->u.rail.flags, VRF_TOGGLE_REVERSE);
01857
01858 ClrBit(v->u.rail.flags, VRF_REVERSING);
01859
01860
01861 TrainConsistChanged(v, true);
01862
01863
01864 for (Vehicle *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01865
01866
01867 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01868
01869
01870 crossing = TrainApproachingCrossingTile(v);
01871 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01872
01873
01874 if (v->u.rail.track & TRACK_BIT_DEPOT) {
01875
01876 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01877 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01878 return;
01879 }
01880
01881
01882
01883 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
01884 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01885
01886 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01887
01888
01889 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01890 HasSignalOnTrackdir(v->tile, GetVehicleTrackdir(v)) &&
01891 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->u.rail.track))));
01892
01893 if (IsRailwayStationTile(v->tile)) SetRailwayStationPlatformReservation(v->tile, TrackdirToExitdir(GetVehicleTrackdir(v)), true);
01894 if (TryPathReserve(v, false, first_tile_okay)) {
01895
01896 CheckNextTrainTile(v);
01897 } else if (v->current_order.GetType() != OT_LOADING) {
01898
01899 MarkTrainAsStuck(v);
01900 }
01901 } else if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01902
01903 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01904 v->load_unload_time_rem = 0;
01905 }
01906 }
01907
01914 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01915 {
01916 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01917
01918 Vehicle *v = GetVehicle(p1);
01919
01920 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01921
01922 if (p2 != 0) {
01923
01924
01925 if (IsMultiheaded(v) || HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) {
01926 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01927 }
01928
01929 Vehicle *front = v->First();
01930
01931 if (CheckTrainStoppedInDepot(front) < 0) {
01932 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01933 }
01934
01935 if (flags & DC_EXEC) {
01936 ToggleBit(v->u.rail.flags, VRF_REVERSE_DIRECTION);
01937 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
01938 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
01939 }
01940 } else {
01941
01942 if (v->vehstatus & VS_CRASHED || v->breakdown_ctr != 0) return CMD_ERROR;
01943
01944 if (flags & DC_EXEC) {
01945
01946 if (v->current_order.IsType(OT_LOADING)) {
01947 const Vehicle *last = v;
01948 while (last->Next() != NULL) last = last->Next();
01949
01950
01951 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01952 v->LeaveStation();
01953 }
01954 }
01955
01956 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL && v->cur_speed != 0) {
01957 ToggleBit(v->u.rail.flags, VRF_REVERSING);
01958 } else {
01959 v->cur_speed = 0;
01960 SetLastSpeed(v, 0);
01961 HideFillingPercent(&v->fill_percent_te_id);
01962 ReverseTrainDirection(v);
01963 }
01964 }
01965 }
01966 return CommandCost();
01967 }
01968
01975 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01976 {
01977 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01978
01979 Vehicle *v = GetVehicle(p1);
01980
01981 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01982
01983 if (flags & DC_EXEC) v->u.rail.force_proceed = 0x50;
01984
01985 return CommandCost();
01986 }
01987
01998 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01999 {
02000 CargoID new_cid = GB(p2, 0, 8);
02001 byte new_subtype = GB(p2, 8, 8);
02002 bool only_this = HasBit(p2, 16);
02003
02004 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02005
02006 Vehicle *v = GetVehicle(p1);
02007
02008 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
02009 if (CheckTrainStoppedInDepot(v) < 0) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02010 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_REFIT_DESTROYED_VEHICLE);
02011
02012
02013 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02014
02015 CommandCost cost(EXPENSES_TRAIN_RUN);
02016 uint num = 0;
02017
02018 do {
02019
02020
02021
02022 if (!CanRefitTo(v->engine_type, new_cid)) continue;
02023
02024 const Engine *e = GetEngine(v->engine_type);
02025 if (e->CanCarryCargo()) {
02026 uint16 amount = CALLBACK_FAILED;
02027
02028 if (HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_REFIT_CAPACITY)) {
02029
02030 CargoID temp_cid = v->cargo_type;
02031 byte temp_subtype = v->cargo_subtype;
02032 v->cargo_type = new_cid;
02033 v->cargo_subtype = new_subtype;
02034
02035 amount = GetVehicleCallback(CBID_VEHICLE_REFIT_CAPACITY, 0, 0, v->engine_type, v);
02036
02037 v->cargo_type = temp_cid;
02038 v->cargo_subtype = temp_subtype;
02039 }
02040
02041 if (amount == CALLBACK_FAILED) {
02042 CargoID old_cid = e->GetDefaultCargoType();
02043
02044
02045
02046
02047 amount = e->u.rail.capacity;
02048 switch (old_cid) {
02049 case CT_PASSENGERS: break;
02050 case CT_MAIL:
02051 case CT_GOODS: amount *= 2; break;
02052 default: amount *= 4; break;
02053 }
02054 switch (new_cid) {
02055 case CT_PASSENGERS: break;
02056 case CT_MAIL:
02057 case CT_GOODS: amount /= 2; break;
02058 default: amount /= 4; break;
02059 }
02060 }
02061
02062 if (new_cid != v->cargo_type) {
02063 cost.AddCost(GetRefitCost(v->engine_type));
02064 }
02065
02066 num += amount;
02067 if (flags & DC_EXEC) {
02068 v->cargo.Truncate((v->cargo_type == new_cid) ? amount : 0);
02069 v->cargo_type = new_cid;
02070 v->cargo_cap = amount;
02071 v->cargo_subtype = new_subtype;
02072 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
02073 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02074 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02075 }
02076 }
02077 } while ((v = v->Next()) != NULL && !only_this);
02078
02079 _returned_refit_capacity = num;
02080
02081
02082 if (flags & DC_EXEC) TrainConsistChanged(GetVehicle(p1)->First(), false);
02083
02084 return cost;
02085 }
02086
02087 struct TrainFindDepotData {
02088 uint best_length;
02089 TileIndex tile;
02090 Owner owner;
02095 bool reverse;
02096 };
02097
02098 static bool NtpCallbFindDepot(TileIndex tile, TrainFindDepotData *tfdd, int track, uint length)
02099 {
02100 if (IsTileType(tile, MP_RAILWAY) &&
02101 IsTileOwner(tile, tfdd->owner) &&
02102 IsRailDepot(tile)) {
02103
02104 tfdd->best_length = length / DIAG_FACTOR;
02105 tfdd->tile = tile;
02106 return true;
02107 }
02108
02109 return false;
02110 }
02111
02114 static TrainFindDepotData FindClosestTrainDepot(Vehicle *v, int max_distance)
02115 {
02116 assert(!(v->vehstatus & VS_CRASHED));
02117
02118 TrainFindDepotData tfdd;
02119 tfdd.owner = v->owner;
02120 tfdd.reverse = false;
02121
02122 if (IsRailDepotTile(v->tile)) {
02123 tfdd.tile = v->tile;
02124 tfdd.best_length = 0;
02125 return tfdd;
02126 }
02127
02128 PBSTileInfo origin = FollowTrainReservation(v);
02129 if (IsRailDepotTile(origin.tile)) {
02130 tfdd.tile = origin.tile;
02131 tfdd.best_length = 0;
02132 return tfdd;
02133 }
02134
02135 tfdd.best_length = UINT_MAX;
02136
02137 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02138 if ((_settings_game.pf.reserve_paths || HasReservedTracks(v->tile, v->u.rail.track)) && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02139
02140 switch (pathfinder) {
02141 case VPF_YAPF: {
02142 bool found = YapfFindNearestRailDepotTwoWay(v, max_distance, NPF_INFINITE_PENALTY, &tfdd.tile, &tfdd.reverse);
02143 tfdd.best_length = found ? max_distance / 2 : UINT_MAX;
02144 } break;
02145
02146 case VPF_NPF: {
02147 const Vehicle *last = GetLastVehicleInChain(v);
02148 Trackdir trackdir = GetVehicleTrackdir(v);
02149 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
02150
02151 assert(trackdir != INVALID_TRACKDIR);
02152 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);
02153 if (ftd.best_bird_dist == 0) {
02154
02155 tfdd.tile = ftd.node.tile;
02156
02157
02158
02159
02160 tfdd.best_length = ftd.best_path_dist / NPF_TILE_LENGTH;
02161 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) tfdd.reverse = true;
02162 }
02163 } break;
02164
02165 default:
02166 case VPF_NTP: {
02167
02168 DiagDirection i = TrainExitDir(v->direction, v->u.rail.track);
02169 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02170 if (tfdd.best_length == UINT_MAX){
02171 tfdd.reverse = true;
02172
02173 i = TrainExitDir(ReverseDir(v->direction), v->u.rail.track);
02174 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02175 }
02176 } break;
02177 }
02178
02179 return tfdd;
02180 }
02181
02182 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02183 {
02184 TrainFindDepotData tfdd = FindClosestTrainDepot(this, 0);
02185 if (tfdd.best_length == UINT_MAX) return false;
02186
02187 if (location != NULL) *location = tfdd.tile;
02188 if (destination != NULL) *destination = GetDepotByTile(tfdd.tile)->index;
02189 if (reverse != NULL) *reverse = tfdd.reverse;
02190
02191 return true;
02192 }
02193
02202 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02203 {
02204 if (p2 & DEPOT_MASS_SEND) {
02205
02206 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02207 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02208 }
02209
02210 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02211
02212 Vehicle *v = GetVehicle(p1);
02213
02214 if (v->type != VEH_TRAIN) return CMD_ERROR;
02215
02216 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02217 }
02218
02219
02220 void OnTick_Train()
02221 {
02222 _age_cargo_skip_counter = (_age_cargo_skip_counter == 0) ? 184 : (_age_cargo_skip_counter - 1);
02223 }
02224
02225 static const int8 _vehicle_smoke_pos[8] = {
02226 1, 1, 1, 0, -1, -1, -1, 0
02227 };
02228
02229 static void HandleLocomotiveSmokeCloud(const Vehicle *v)
02230 {
02231 bool sound = false;
02232
02233 if (v->vehstatus & VS_TRAIN_SLOWING || v->load_unload_time_rem != 0 || v->cur_speed < 2) {
02234 return;
02235 }
02236
02237 const Vehicle *u = v;
02238
02239 do {
02240 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02241 int effect_offset = GB(v->u.rail.cached_vis_effect, 0, 4) - 8;
02242 byte effect_type = GB(v->u.rail.cached_vis_effect, 4, 2);
02243 bool disable_effect = HasBit(v->u.rail.cached_vis_effect, 6);
02244
02245
02246 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02247 disable_effect ||
02248 v->vehstatus & VS_HIDDEN) {
02249 continue;
02250 }
02251
02252
02253 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02254
02255
02256 if (!HasPowerOnRail(v->u.rail.railtype, GetTileRailType(v->tile))) continue;
02257
02258 if (effect_type == 0) {
02259
02260 effect_type = rvi->engclass;
02261 } else {
02262 effect_type--;
02263 }
02264
02265 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02266 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02267
02268 if (HasBit(v->u.rail.flags, VRF_REVERSE_DIRECTION)) {
02269 x = -x;
02270 y = -y;
02271 }
02272
02273 switch (effect_type) {
02274 case 0:
02275
02276 if (GB(v->tick_counter, 0, 4) == 0) {
02277 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02278 sound = true;
02279 }
02280 break;
02281
02282 case 1:
02283
02284 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02285 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02286 sound = true;
02287 }
02288 break;
02289
02290 case 2:
02291
02292 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02293 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02294 sound = true;
02295 }
02296 break;
02297
02298 default:
02299 break;
02300 }
02301 } while ((v = v->Next()) != NULL);
02302
02303 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02304 }
02305
02306 void Train::PlayLeaveStationSound() const
02307 {
02308 static const SoundFx sfx[] = {
02309 SND_04_TRAIN,
02310 SND_0A_TRAIN_HORN,
02311 SND_0A_TRAIN_HORN,
02312 SND_47_MAGLEV_2,
02313 SND_41_MAGLEV
02314 };
02315
02316 if (PlayVehicleSound(this, VSE_START)) return;
02317
02318 EngineID engtype = this->engine_type;
02319 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02320 }
02321
02323 static void CheckNextTrainTile(Vehicle *v)
02324 {
02325
02326 if (_settings_game.pf.path_backoff_interval == 255) return;
02327
02328
02329 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->u.rail.track & TRACK_BIT_DEPOT) return;
02330
02331 if (IsRailwayStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02332
02333 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02334
02335 Trackdir td = GetVehicleTrackdir(v);
02336
02337
02338 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02339 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02340 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02341
02342 CFollowTrackRail ft(v);
02343 if (!ft.Follow(v->tile, td)) return;
02344
02345 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02346
02347 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02348 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02349
02350 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02351 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
02352 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02353 }
02354 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02355 }
02356 }
02357 }
02358 }
02359
02360 static bool CheckTrainStayInDepot(Vehicle *v)
02361 {
02362
02363 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
02364 if (u->u.rail.track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02365 }
02366
02367
02368 if (v->u.rail.cached_power == 0) {
02369 v->vehstatus |= VS_STOPPED;
02370 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02371 return true;
02372 }
02373
02374 SigSegState seg_state;
02375
02376 if (v->u.rail.force_proceed == 0) {
02377
02378 if (++v->load_unload_time_rem < 37) {
02379 InvalidateWindowClasses(WC_TRAINS_LIST);
02380 return true;
02381 }
02382
02383 v->load_unload_time_rem = 0;
02384
02385 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02386 if (seg_state == SIGSEG_FULL || GetDepotWaypointReservation(v->tile)) {
02387
02388 InvalidateWindowClasses(WC_TRAINS_LIST);
02389 return true;
02390 }
02391 } else {
02392 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02393 }
02394
02395
02396 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02397
02398 if (GetDepotWaypointReservation(v->tile)) return true;
02399 SetDepotWaypointReservation(v->tile, true);
02400 VehicleEnterDepot(v);
02401 return true;
02402 }
02403
02404
02405 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->u.rail.force_proceed == 0) {
02406
02407 InvalidateWindowClasses(WC_TRAINS_LIST);
02408 MarkTrainAsStuck(v);
02409 return true;
02410 }
02411
02412 SetDepotWaypointReservation(v->tile, true);
02413 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02414
02415 VehicleServiceInDepot(v);
02416 InvalidateWindowClasses(WC_TRAINS_LIST);
02417 v->PlayLeaveStationSound();
02418
02419 v->u.rail.track = TRACK_BIT_X;
02420 if (v->direction & 2) v->u.rail.track = TRACK_BIT_Y;
02421
02422 v->vehstatus &= ~VS_HIDDEN;
02423 v->cur_speed = 0;
02424
02425 v->UpdateDeltaXY(v->direction);
02426 v->cur_image = v->GetImage(v->direction);
02427 VehicleMove(v, false);
02428 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02429 UpdateTrainAcceleration(v);
02430 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02431
02432 return false;
02433 }
02434
02436 static void ClearPathReservation(const Vehicle *v, TileIndex tile, Trackdir track_dir)
02437 {
02438 DiagDirection dir = TrackdirToExitdir(track_dir);
02439
02440 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02441
02442 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02443 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02444
02445 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02446
02447 SetTunnelBridgeReservation(tile, false);
02448 SetTunnelBridgeReservation(end, false);
02449
02450 if (_settings_client.gui.show_track_reservation) {
02451 MarkTileDirtyByTile(tile);
02452 MarkTileDirtyByTile(end);
02453 }
02454 }
02455 }
02456 } else if (IsRailwayStationTile(tile)) {
02457 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02458
02459
02460 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02461 SetRailwayStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02462 }
02463 } else {
02464
02465 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02466 }
02467 }
02468
02470 void FreeTrainTrackReservation(const Vehicle *v, TileIndex origin, Trackdir orig_td)
02471 {
02472 assert(IsFrontEngine(v));
02473
02474 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02475 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : GetVehicleTrackdir(v);
02476 bool free_tile = tile != v->tile || !(IsRailwayStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02477 StationID station_id = IsRailwayStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02478
02479
02480 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02481
02482 CFollowTrackRail ft(v, GetRailTypeInfo(v->u.rail.railtype)->compatible_railtypes);
02483 while (ft.Follow(tile, td)) {
02484 tile = ft.m_new_tile;
02485 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02486 td = RemoveFirstTrackdir(&bits);
02487 assert(bits == TRACKDIR_BIT_NONE);
02488
02489 if (!IsValidTrackdir(td)) break;
02490
02491 if (IsTileType(tile, MP_RAILWAY)) {
02492 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02493
02494 UnreserveRailTrack(tile, TrackdirToTrack(td));
02495 break;
02496 }
02497 if (HasPbsSignalOnTrackdir(tile, td)) {
02498 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02499
02500 break;
02501 } else {
02502
02503 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02504 MarkTileDirtyByTile(tile);
02505 }
02506 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02507 break;
02508 }
02509 }
02510
02511
02512 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);
02513
02514 free_tile = true;
02515 }
02516 }
02517
02519 struct TrainTrackFollowerData {
02520 TileIndex dest_coords;
02521 StationID station_index;
02522 uint best_bird_dist;
02523 uint best_track_dist;
02524 TrackdirByte best_track;
02525 };
02526
02527 static bool NtpCallbFindStation(TileIndex tile, TrainTrackFollowerData *ttfd, Trackdir track, uint length)
02528 {
02529
02530 if (ttfd->dest_coords == 0) return false;
02531
02532
02533 if ((ttfd->station_index == INVALID_STATION && tile == ttfd->dest_coords) || (
02534 IsTileType(tile, MP_STATION) &&
02535 IsRailwayStation(tile) &&
02536 GetStationIndex(tile) == ttfd->station_index
02537 )) {
02538
02539
02540
02541
02542
02543 ttfd->best_track = track;
02544 ttfd->best_bird_dist = 0;
02545 return true;
02546 } else {
02547
02548 uint dist = DistanceManhattan(tile, ttfd->dest_coords);
02549 if (dist < ttfd->best_bird_dist) {
02550 ttfd->best_bird_dist = dist;
02551 ttfd->best_track = track;
02552 }
02553 return false;
02554 }
02555 }
02556
02557 static void FillWithStationData(TrainTrackFollowerData *fd, const Vehicle *v)
02558 {
02559 fd->dest_coords = v->dest_tile;
02560 fd->station_index = v->current_order.IsType(OT_GOTO_STATION) ? v->current_order.GetDestination() : INVALID_STATION;
02561 }
02562
02563 static const byte _initial_tile_subcoord[6][4][3] = {
02564 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02565 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02566 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02567 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02568 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02569 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02570 };
02571
02572 static const byte _search_directions[6][4] = {
02573 { 0, 9, 2, 9 },
02574 { 9, 1, 9, 3 },
02575 { 9, 0, 3, 9 },
02576 { 1, 9, 9, 2 },
02577 { 3, 2, 9, 9 },
02578 { 9, 9, 1, 0 },
02579 };
02580
02581 static const byte _pick_track_table[6] = {1, 3, 2, 2, 0, 0};
02582
02595 static Track DoTrainPathfind(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02596 {
02597 Track best_track;
02598
02599 #ifdef PF_BENCHMARK
02600 TIC()
02601 #endif
02602
02603 if (path_not_found) *path_not_found = false;
02604
02605 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02606 if (do_track_reservation && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02607
02608 switch (pathfinder) {
02609 case VPF_YAPF: {
02610 Trackdir trackdir = YapfChooseRailTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02611 if (trackdir != INVALID_TRACKDIR) {
02612 best_track = TrackdirToTrack(trackdir);
02613 } else {
02614 best_track = FindFirstTrack(tracks);
02615 }
02616 } break;
02617
02618 case VPF_NPF: {
02619 void *perf = NpfBeginInterval();
02620
02621 NPFFindStationOrTileData fstd;
02622 NPFFillWithOrderData(&fstd, v, do_track_reservation);
02623
02624 PBSTileInfo origin = FollowTrainReservation(v);
02625 assert(IsValidTrackdir(origin.trackdir));
02626
02627 NPFFoundTargetData ftd = NPFRouteToStationOrTile(origin.tile, origin.trackdir, true, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
02628
02629 if (dest != NULL) {
02630 dest->tile = ftd.node.tile;
02631 dest->trackdir = (Trackdir)ftd.node.direction;
02632 dest->okay = ftd.res_okay;
02633 }
02634
02635 if (ftd.best_trackdir == INVALID_TRACKDIR) {
02636
02637
02638
02639 best_track = FindFirstTrack(tracks);
02640 } else {
02641
02642
02643
02644
02645 if (ftd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02646
02647 best_track = TrackdirToTrack(ftd.best_trackdir);
02648 }
02649
02650 int time = NpfEndInterval(perf);
02651 DEBUG(yapf, 4, "[NPFT] %d us - %d rounds - %d open - %d closed -- ", time, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
02652 } break;
02653
02654 default:
02655 case VPF_NTP: {
02656 void *perf = NpfBeginInterval();
02657
02658 TrainTrackFollowerData fd;
02659 FillWithStationData(&fd, v);
02660
02661
02662 fd.best_bird_dist = UINT_MAX;
02663 fd.best_track_dist = UINT_MAX;
02664 fd.best_track = INVALID_TRACKDIR;
02665
02666 NewTrainPathfind(tile - TileOffsByDiagDir(enterdir), v->dest_tile,
02667 v->u.rail.compatible_railtypes, enterdir, (NTPEnumProc*)NtpCallbFindStation, &fd);
02668
02669
02670 if (fd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02671
02672 if (fd.best_track == INVALID_TRACKDIR) {
02673
02674 best_track = FindFirstTrack(tracks);
02675 } else {
02676 best_track = TrackdirToTrack(fd.best_track);
02677 }
02678
02679 int time = NpfEndInterval(perf);
02680 DEBUG(yapf, 4, "[NTPT] %d us - %d rounds - %d open - %d closed -- ", time, 0, 0, 0);
02681 } break;
02682 }
02683
02684 #ifdef PF_BENCHMARK
02685 TOC("PF time = ", 1)
02686 #endif
02687
02688 return best_track;
02689 }
02690
02696 static PBSTileInfo ExtendTrainReservation(const Vehicle *v, TrackBits *new_tracks, DiagDirection *enterdir)
02697 {
02698 bool no_90deg_turns = _settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg;
02699 PBSTileInfo origin = FollowTrainReservation(v);
02700
02701 CFollowTrackRail ft(v);
02702
02703 TileIndex tile = origin.tile;
02704 Trackdir cur_td = origin.trackdir;
02705 while (ft.Follow(tile, cur_td)) {
02706 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02707
02708 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02709 }
02710
02711 if (no_90deg_turns) {
02712 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02713 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02714 }
02715
02716
02717 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02718 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02719
02720
02721
02722
02723
02724
02725 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02726
02727
02728
02729 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02730
02731
02732 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02733 if (enterdir) *enterdir = ft.m_exitdir;
02734 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02735 }
02736
02737 tile = ft.m_new_tile;
02738 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02739
02740 if (IsSafeWaitingPosition(v, tile, cur_td, true, no_90deg_turns)) {
02741 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, no_90deg_turns);
02742 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02743
02744 return PBSTileInfo(tile, cur_td, true);
02745 }
02746
02747 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02748 }
02749
02750 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02751
02752 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02753 }
02754
02755
02756 tile = origin.tile;
02757 cur_td = origin.trackdir;
02758 TileIndex stopped = ft.m_old_tile;
02759 Trackdir stopped_td = ft.m_old_td;
02760 while (tile != stopped || cur_td != stopped_td) {
02761 if (!ft.Follow(tile, cur_td)) break;
02762
02763 if (no_90deg_turns) {
02764 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02765 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02766 }
02767 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02768
02769 tile = ft.m_new_tile;
02770 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02771
02772 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02773 }
02774
02775
02776 return PBSTileInfo();
02777 }
02778
02789 static bool TryReserveSafeTrack(const Vehicle *v, TileIndex tile, Trackdir td, bool override_tailtype)
02790 {
02791 if (_settings_game.pf.pathfinder_for_trains == VPF_YAPF) {
02792 return YapfRailFindNearestSafeTile(v, tile, td, override_tailtype);
02793 } else {
02794 return NPFRouteToSafeTile(v, tile, td, override_tailtype).res_okay;
02795 }
02796 }
02797
02799 class VehicleOrderSaver
02800 {
02801 private:
02802 Vehicle *v;
02803 Order old_order;
02804 TileIndex old_dest_tile;
02805 StationID old_last_station_visited;
02806 VehicleOrderID index;
02807
02808 public:
02809 VehicleOrderSaver(Vehicle *_v) :
02810 v(_v),
02811 old_order(_v->current_order),
02812 old_dest_tile(_v->dest_tile),
02813 old_last_station_visited(_v->last_station_visited),
02814 index(_v->cur_order_index)
02815 {
02816 }
02817
02818 ~VehicleOrderSaver()
02819 {
02820 this->v->current_order = this->old_order;
02821 this->v->dest_tile = this->old_dest_tile;
02822 this->v->last_station_visited = this->old_last_station_visited;
02823 }
02824
02830 bool SwitchToNextOrder(bool skip_first)
02831 {
02832 if (this->v->GetNumOrders() == 0) return false;
02833
02834 if (skip_first) ++this->index;
02835
02836 int conditional_depth = 0;
02837
02838 do {
02839
02840 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02841
02842 Order *order = GetVehicleOrder(this->v, this->index);
02843 assert(order != NULL);
02844
02845 switch (order->GetType()) {
02846 case OT_GOTO_DEPOT:
02847
02848 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02849 case OT_GOTO_STATION:
02850 case OT_GOTO_WAYPOINT:
02851 this->v->current_order = *order;
02852 UpdateOrderDest(this->v, order);
02853 return true;
02854 case OT_CONDITIONAL: {
02855 if (conditional_depth > this->v->GetNumOrders()) return false;
02856 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02857 if (next != INVALID_VEH_ORDER_ID) {
02858 conditional_depth++;
02859 this->index = next;
02860
02861 continue;
02862 }
02863 break;
02864 }
02865 default:
02866 break;
02867 }
02868
02869
02870 ++this->index;
02871 } while (this->index != this->v->cur_order_index);
02872
02873 return false;
02874 }
02875 };
02876
02877
02878 static Track ChooseTrainTrack(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02879 {
02880 Track best_track = INVALID_TRACK;
02881 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02882 bool changed_signal = false;
02883
02884 assert((tracks & ~TRACK_BIT_MASK) == 0);
02885
02886 if (got_reservation != NULL) *got_reservation = false;
02887
02888
02889 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02890
02891 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02892
02893
02894 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02895 Track track = FindFirstTrack(tracks);
02896
02897 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02898 do_track_reservation = true;
02899 changed_signal = true;
02900 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02901 } else if (!do_track_reservation) {
02902 return track;
02903 }
02904 best_track = track;
02905 }
02906
02907 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02908 DiagDirection dest_enterdir = enterdir;
02909 if (do_track_reservation) {
02910
02911
02912
02913 CheckIfTrainNeedsService(v);
02914 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02915
02916 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02917 if (res_dest.tile == INVALID_TILE) {
02918
02919 if (mark_stuck) MarkTrainAsStuck(v);
02920 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02921 return FindFirstTrack(tracks);
02922 }
02923 }
02924
02925
02926 VehicleOrderSaver orders(v);
02927
02928
02929
02930
02931
02932
02933
02934 if (v->current_order.IsType(OT_LEAVESTATION)) {
02935 orders.SwitchToNextOrder(false);
02936 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02937 v->current_order.IsType(OT_GOTO_STATION) ?
02938 IsRailwayStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02939 v->tile == v->dest_tile))) {
02940 orders.SwitchToNextOrder(true);
02941 }
02942
02943 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02944
02945 bool path_not_found = false;
02946 TileIndex new_tile = res_dest.tile;
02947
02948 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02949 if (new_tile == tile) best_track = next_track;
02950
02951
02952 if (path_not_found) {
02953
02954 if (!HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02955
02956 SetBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02957
02958 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02959 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02960 SetDParam(0, v->index);
02961 AddNewsItem(
02962 STR_TRAIN_IS_LOST,
02963 NS_ADVICE,
02964 v->index,
02965 0);
02966 }
02967 }
02968 } else {
02969
02970 if (HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02971
02972 ClrBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02973
02974 }
02975 }
02976 }
02977
02978
02979 if (!do_track_reservation) return best_track;
02980
02981
02982 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02983 if (mark_stuck) MarkTrainAsStuck(v);
02984 FreeTrainTrackReservation(v);
02985 return best_track;
02986 }
02987
02988
02989 if (res_dest.tile == INVALID_TILE) {
02990
02991 PBSTileInfo origin = FollowTrainReservation(v);
02992 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02993 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02994 best_track = FindFirstTrack(res);
02995 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
02996 if (got_reservation != NULL) *got_reservation = true;
02997 if (changed_signal) MarkTileDirtyByTile(tile);
02998 } else {
02999 FreeTrainTrackReservation(v);
03000 if (mark_stuck) MarkTrainAsStuck(v);
03001 }
03002 return best_track;
03003 }
03004
03005 if (got_reservation != NULL) *got_reservation = true;
03006
03007
03008 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
03009
03010 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
03011 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
03012 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
03013 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
03014 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
03015 }
03016
03017
03018 if (orders.SwitchToNextOrder(true)) {
03019 PBSTileInfo cur_dest;
03020 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
03021 if (cur_dest.tile != INVALID_TILE) {
03022 res_dest = cur_dest;
03023 if (res_dest.okay) continue;
03024
03025 FreeTrainTrackReservation(v);
03026 if (mark_stuck) MarkTrainAsStuck(v);
03027 if (got_reservation != NULL) *got_reservation = false;
03028 changed_signal = false;
03029 break;
03030 }
03031 }
03032
03033 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
03034 FreeTrainTrackReservation(v);
03035 if (mark_stuck) MarkTrainAsStuck(v);
03036 if (got_reservation != NULL) *got_reservation = false;
03037 changed_signal = false;
03038 }
03039 break;
03040 }
03041
03042 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
03043
03044 if (changed_signal) MarkTileDirtyByTile(tile);
03045
03046 return best_track;
03047 }
03048
03057 bool TryPathReserve(Vehicle *v, bool mark_as_stuck, bool first_tile_okay)
03058 {
03059 assert(v->type == VEH_TRAIN && IsFrontEngine(v));
03060
03061
03062
03063
03064 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03065 if (GetDepotWaypointReservation(v->tile)) {
03066 if (mark_as_stuck) MarkTrainAsStuck(v);
03067 return false;
03068 } else {
03069
03070 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
03071 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
03072 }
03073 }
03074
03075
03076 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
03077 TileIndex next_tile = TileAddByDiagDir(v->tile, dir);
03078 if (IsTileType(next_tile, MP_RAILWAY) && HasReservedTracks(next_tile, DiagdirReachesTracks(dir))) {
03079
03080 Trackdir td = FindFirstTrackdir(TrackBitsToTrackdirBits(GetReservedTrackbits(next_tile)) & DiagdirReachesTrackdirs(dir));
03081 if (HasSignalOnTrackdir(next_tile, td) && HasSignalOnTrackdir(next_tile, ReverseTrackdir(td)) &&
03082 !IsPbsSignal(GetSignalType(next_tile, TrackdirToTrack(td)))) {
03083
03084 if (mark_as_stuck) MarkTrainAsStuck(v);
03085 return false;
03086 }
03087 }
03088
03089 bool other_train = false;
03090 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
03091
03092
03093
03094
03095
03096 if (other_train && v->tile != origin.tile) {
03097 if (mark_as_stuck) MarkTrainAsStuck(v);
03098 return false;
03099 }
03100
03101 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
03102
03103 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03104 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03105 return true;
03106 }
03107
03108
03109 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03110 SetDepotWaypointReservation(v->tile, true);
03111 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
03112 }
03113
03114 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
03115 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
03116 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
03117
03118 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
03119
03120 bool res_made = false;
03121 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
03122
03123 if (!res_made) {
03124
03125 if (v->u.rail.track & TRACK_BIT_DEPOT) SetDepotWaypointReservation(v->tile, false);
03126 return false;
03127 }
03128
03129 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03130 v->load_unload_time_rem = 0;
03131 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03132 }
03133 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03134 return true;
03135 }
03136
03137
03138 static bool CheckReverseTrain(Vehicle *v)
03139 {
03140 if (_settings_game.difficulty.line_reverse_mode != 0 ||
03141 v->u.rail.track == TRACK_BIT_DEPOT || v->u.rail.track == TRACK_BIT_WORMHOLE ||
03142 !(v->direction & 1)) {
03143 return false;
03144 }
03145
03146 uint reverse_best = 0;
03147
03148 assert(v->u.rail.track);
03149
03150 switch (_settings_game.pf.pathfinder_for_trains) {
03151 case VPF_YAPF:
03152 reverse_best = YapfCheckReverseTrain(v);
03153 break;
03154
03155 case VPF_NPF: {
03156 NPFFindStationOrTileData fstd;
03157 NPFFoundTargetData ftd;
03158 Vehicle *last = GetLastVehicleInChain(v);
03159
03160 NPFFillWithOrderData(&fstd, v);
03161
03162 Trackdir trackdir = GetVehicleTrackdir(v);
03163 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
03164 assert(trackdir != INVALID_TRACKDIR);
03165 assert(trackdir_rev != INVALID_TRACKDIR);
03166
03167 ftd = NPFRouteToStationOrTileTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
03168 if (ftd.best_bird_dist != 0) {
03169
03170 reverse_best = false;
03171 } else {
03172 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) {
03173 reverse_best = true;
03174 } else {
03175 reverse_best = false;
03176 }
03177 }
03178 } break;
03179
03180 default:
03181 case VPF_NTP: {
03182 TrainTrackFollowerData fd;
03183 FillWithStationData(&fd, v);
03184
03185 int i = _search_directions[FindFirstTrack(v->u.rail.track)][DirToDiagDir(v->direction)];
03186
03187 int best_track = -1;
03188 uint reverse = 0;
03189 uint best_bird_dist = 0;
03190 uint best_track_dist = 0;
03191
03192 for (;;) {
03193 fd.best_bird_dist = UINT_MAX;
03194 fd.best_track_dist = UINT_MAX;
03195
03196 NewTrainPathfind(v->tile, v->dest_tile, v->u.rail.compatible_railtypes, (DiagDirection)(reverse ^ i), (NTPEnumProc*)NtpCallbFindStation, &fd);
03197
03198 if (best_track != -1) {
03199 if (best_bird_dist != 0) {
03200 if (fd.best_bird_dist != 0) {
03201
03202 if (fd.best_bird_dist > best_bird_dist) goto bad;
03203 if (fd.best_bird_dist < best_bird_dist) goto good;
03204 } else {
03205
03206 goto good;
03207 }
03208 } else {
03209 if (fd.best_bird_dist != 0) {
03210
03211 goto bad;
03212 } else {
03213
03214 if (fd.best_track_dist > best_track_dist) goto bad;
03215 if (fd.best_track_dist < best_track_dist) goto good;
03216 }
03217 }
03218
03219
03220
03221 int r = GB(Random(), 0, 8);
03222 if (_pick_track_table[i] == (v->direction & 3)) r += 80;
03223 if (_pick_track_table[best_track] == (v->direction & 3)) r -= 80;
03224 if (r <= 127) goto bad;
03225 }
03226 good:;
03227 best_track = i;
03228 best_bird_dist = fd.best_bird_dist;
03229 best_track_dist = fd.best_track_dist;
03230 reverse_best = reverse;
03231 bad:;
03232 if (reverse != 0) break;
03233 reverse = 2;
03234 }
03235 } break;
03236 }
03237
03238 return reverse_best != 0;
03239 }
03240
03241 TileIndex Train::GetOrderStationLocation(StationID station)
03242 {
03243 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
03244
03245 const Station *st = GetStation(station);
03246 if (!(st->facilities & FACIL_TRAIN)) {
03247
03248 this->cur_order_index++;
03249 return 0;
03250 }
03251
03252 return st->xy;
03253 }
03254
03255 void Train::MarkDirty()
03256 {
03257 Vehicle *v = this;
03258 do {
03259 v->UpdateViewport(false, false);
03260 } while ((v = v->Next()) != NULL);
03261
03262
03263 TrainCargoChanged(this);
03264 UpdateTrainAcceleration(this);
03265 }
03266
03277 static int UpdateTrainSpeed(Vehicle *v)
03278 {
03279 uint accel;
03280
03281 if (v->vehstatus & VS_STOPPED || HasBit(v->u.rail.flags, VRF_REVERSING) || HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03282 switch (_settings_game.vehicle.train_acceleration_model) {
03283 default: NOT_REACHED();
03284 case TAM_ORIGINAL: accel = v->acceleration * -4; break;
03285 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_BRAKE); break;
03286 }
03287 } else {
03288 switch (_settings_game.vehicle.train_acceleration_model) {
03289 default: NOT_REACHED();
03290 case TAM_ORIGINAL: accel = v->acceleration * 2; break;
03291 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_ACCEL); break;
03292 }
03293 }
03294
03295 uint spd = v->subspeed + accel;
03296 v->subspeed = (byte)spd;
03297 {
03298 int tempmax = v->max_speed;
03299 if (v->cur_speed > v->max_speed)
03300 tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
03301 v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
03302 }
03303
03304
03305
03306
03307
03308
03309
03310
03311
03312
03313
03314
03315 int scaled_spd = spd * 3 >> 2;
03316
03317 scaled_spd += v->progress;
03318 v->progress = 0;
03319 return scaled_spd;
03320 }
03321
03322 static void TrainEnterStation(Vehicle *v, StationID station)
03323 {
03324 v->last_station_visited = station;
03325
03326
03327 Station *st = GetStation(station);
03328 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
03329 st->had_vehicle_of_type |= HVOT_TRAIN;
03330 SetDParam(0, st->index);
03331 AddNewsItem(
03332 STR_8801_CITIZENS_CELEBRATE_FIRST,
03333 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
03334 v->index,
03335 st->index
03336 );
03337 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
03338 }
03339
03340 v->BeginLoading();
03341
03342 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03343 }
03344
03345 static byte AfterSetTrainPos(Vehicle *v, bool new_tile)
03346 {
03347 byte old_z = v->z_pos;
03348 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03349
03350 if (new_tile) {
03351 ClrBit(v->u.rail.flags, VRF_GOINGUP);
03352 ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
03353
03354 if (v->u.rail.track == TRACK_BIT_X || v->u.rail.track == TRACK_BIT_Y) {
03355
03356
03357
03358
03359
03360 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03361 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03362
03363 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03364
03365
03366
03367 if (middle_z != v->z_pos && !IsTunnelTile(TileVirtXY(v->x_pos, v->y_pos))) {
03368 SetBit(v->u.rail.flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03369 }
03370 }
03371 }
03372
03373 VehicleMove(v, true);
03374 return old_z;
03375 }
03376
03377 static const Direction _new_vehicle_direction_table[11] = {
03378 DIR_N , DIR_NW, DIR_W , INVALID_DIR,
03379 DIR_NE, DIR_N , DIR_SW, INVALID_DIR,
03380 DIR_E , DIR_SE, DIR_S
03381 };
03382
03383 static inline Direction GetNewVehicleDirectionByTile(TileIndex new_tile, TileIndex old_tile)
03384 {
03385 uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
03386 TileX(new_tile) - TileX(old_tile) + 1;
03387 assert(offs < 11);
03388 return _new_vehicle_direction_table[offs];
03389 }
03390
03391 static inline int GetDirectionToVehicle(const Vehicle *v, int x, int y)
03392 {
03393 byte offs;
03394
03395 x -= v->x_pos;
03396 if (x >= 0) {
03397 offs = (x > 2) ? 0 : 1;
03398 } else {
03399 offs = (x < -2) ? 2 : 1;
03400 }
03401
03402 y -= v->y_pos;
03403 if (y >= 0) {
03404 offs += ((y > 2) ? 0 : 1) * 4;
03405 } else {
03406 offs += ((y < -2) ? 2 : 1) * 4;
03407 }
03408
03409 assert(offs < 11);
03410 return _new_vehicle_direction_table[offs];
03411 }
03412
03413
03414 static inline bool CheckCompatibleRail(const Vehicle *v, TileIndex tile)
03415 {
03416 return
03417 IsTileOwner(tile, v->owner) && (
03418 !IsFrontEngine(v) ||
03419 HasBit(v->u.rail.compatible_railtypes, GetRailType(tile))
03420 );
03421 }
03422
03423 struct RailtypeSlowdownParams {
03424 byte small_turn, large_turn;
03425 byte z_up;
03426 byte z_down;
03427 };
03428
03429 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03430
03431 {256 / 4, 256 / 2, 256 / 4, 2},
03432 {256 / 4, 256 / 2, 256 / 4, 2},
03433 {256 / 4, 256 / 2, 256 / 4, 2},
03434 {0, 256 / 2, 256 / 4, 2},
03435 };
03436
03438 static inline void AffectSpeedByDirChange(Vehicle *v, Direction new_dir)
03439 {
03440 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03441
03442 DirDiff diff = DirDifference(v->direction, new_dir);
03443 if (diff == DIRDIFF_SAME) return;
03444
03445 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03446 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03447 }
03448
03450 static inline void AffectSpeedByZChange(Vehicle *v, byte old_z)
03451 {
03452 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03453
03454 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03455
03456 if (old_z < v->z_pos) {
03457 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03458 } else {
03459 uint16 spd = v->cur_speed + rsp->z_down;
03460 if (spd <= v->max_speed) v->cur_speed = spd;
03461 }
03462 }
03463
03464 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03465 {
03466 if (IsTileType(tile, MP_RAILWAY) &&
03467 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03468 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03469 Trackdir trackdir = FindFirstTrackdir(tracks);
03470 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03471
03472 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03473 }
03474 }
03475 return false;
03476 }
03477
03478
03479 static void SetVehicleCrashed(Vehicle *v)
03480 {
03481 if (v->u.rail.crash_anim_pos != 0) return;
03482
03483 if (IsFrontEngine(v)) {
03484
03485
03486 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
03487 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
03488 ClearPathReservation(u, u->tile, GetVehicleTrackdir(u));
03489 if (IsTileType(u->tile, MP_TUNNELBRIDGE)) {
03490
03491
03492 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(u->tile), false);
03493 }
03494 }
03495 }
03496
03497
03498 TileIndex crossing = TrainApproachingCrossingTile(v);
03499
03500 v->u.rail.crash_anim_pos++;
03501
03502 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03503 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
03504
03505 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03506 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
03507 }
03508
03509 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
03510
03511 for (; v != NULL; v = v->Next()) {
03512 v->vehstatus |= VS_CRASHED;
03513 MarkSingleVehicleDirty(v);
03514 }
03515
03516
03517 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03518 }
03519
03520 static uint CountPassengersInTrain(const Vehicle *v)
03521 {
03522 uint num = 0;
03523
03524 for (; v != NULL; v = v->Next()) {
03525 if (IsCargoInClass(v->cargo_type, CC_PASSENGERS)) num += v->cargo.Count();
03526 }
03527
03528 return num;
03529 }
03530
03537 static uint TrainCrashed(Vehicle *v)
03538 {
03539
03540 if (v->vehstatus & VS_CRASHED) return 0;
03541
03542
03543 uint num = 2 + CountPassengersInTrain(v);
03544
03545 SetVehicleCrashed(v);
03546 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03547
03548 return num;
03549 }
03550
03551 struct TrainCollideChecker {
03552 Vehicle *v;
03553 uint num;
03554 };
03555
03556 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03557 {
03558 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03559
03560 if (v->type != VEH_TRAIN) return NULL;
03561
03562
03563 Vehicle *coll = v->First();
03564
03565
03566 if (coll != tcc->v && v->u.rail.track != TRACK_BIT_DEPOT && abs(v->z_pos - tcc->v->z_pos) < 6) {
03567 int x_diff = v->x_pos - tcc->v->x_pos;
03568 int y_diff = v->y_pos - tcc->v->y_pos;
03569
03570
03571 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03572
03573
03574 tcc->num += TrainCrashed(tcc->v);
03575 tcc->num += TrainCrashed(coll);
03576
03577
03578
03579 const Vehicle *u;
03580 FOR_ALL_VEHICLES(u) {
03581 if (u->type == VEH_TRAIN && HASBITS(u->vehstatus, VS_CRASHED) && (u->u.rail.track & TRACK_BIT_DEPOT) == TRACK_BIT_NONE) {
03582 TrackBits trackbits = u->u.rail.track;
03583 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03584
03585 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(u->tile));
03586 }
03587 TryReserveRailTrack(u->tile, TrackBitsToTrack(trackbits));
03588 }
03589 }
03590 }
03591
03592 return NULL;
03593 }
03594
03601 static bool CheckTrainCollision(Vehicle *v)
03602 {
03603
03604 if (v->u.rail.track == TRACK_BIT_DEPOT) return false;
03605
03606 assert(v->u.rail.track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03607
03608 TrainCollideChecker tcc;
03609 tcc.v = v;
03610 tcc.num = 0;
03611
03612
03613 if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
03614 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03615 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03616 } else {
03617 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03618 }
03619
03620
03621 if (tcc.num == 0) return false;
03622
03623 SetDParam(0, tcc.num);
03624 AddNewsItem(STR_8868_TRAIN_CRASH_DIE_IN_FIREBALL,
03625 NS_ACCIDENT_VEHICLE,
03626 v->index,
03627 0
03628 );
03629
03630 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03631 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03632 return true;
03633 }
03634
03635 static Vehicle *CheckVehicleAtSignal(Vehicle *v, void *data)
03636 {
03637 DiagDirection exitdir = *(DiagDirection *)data;
03638
03639
03640 if (v->type == VEH_TRAIN && IsFrontEngine(v) && (v->u.rail.track & TRACK_BIT_MASK) != 0 && !(v->vehstatus & VS_CRASHED)) {
03641 if (v->cur_speed <= 5 && TrainExitDir(v->direction, v->u.rail.track) == exitdir) return v;
03642 }
03643
03644 return NULL;
03645 }
03646
03647 static void TrainController(Vehicle *v, Vehicle *nomove)
03648 {
03649 Vehicle *prev;
03650
03651
03652 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03653 DiagDirection enterdir = DIAGDIR_BEGIN;
03654 bool update_signals_crossing = false;
03655
03656 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03657 if (v->u.rail.track != TRACK_BIT_WORMHOLE) {
03658
03659 if (gp.old_tile == gp.new_tile) {
03660
03661 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03662
03663 gp.x = v->x_pos;
03664 gp.y = v->y_pos;
03665 } else {
03666
03667
03668
03669 if (IsFrontEngine(v) && !TrainCheckIfLineEnds(v)) return;
03670
03671 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03672 if (HasBit(r, VETS_CANNOT_ENTER)) {
03673 goto invalid_rail;
03674 }
03675 if (HasBit(r, VETS_ENTERED_STATION)) {
03676
03677 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03678 }
03679 }
03680 } else {
03681
03682
03683
03684 Direction dir = GetNewVehicleDirectionByTile(gp.new_tile, gp.old_tile);
03685 enterdir = DirToDiagDir(dir);
03686 assert(IsValidDiagDirection(enterdir));
03687
03688
03689
03690 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03691 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03692
03693 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03694 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03695
03696 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03697 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg && prev == NULL) {
03698
03699
03700 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
03701 }
03702
03703 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03704
03705
03706
03707 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03708
03709 TrackBits chosen_track;
03710 if (prev == NULL) {
03711
03712
03713 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03714 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03715
03716
03717 if (red_signals & chosen_track && v->u.rail.force_proceed == 0) {
03718
03719 Trackdir i = FindFirstTrackdir(trackdirbits);
03720
03721
03722 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) return;
03723
03724 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03725 v->cur_speed = 0;
03726 v->subspeed = 0;
03727 v->progress = 255 - 100;
03728 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_oneway_signal * 20) return;
03729 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03730 v->cur_speed = 0;
03731 v->subspeed = 0;
03732 v->progress = 255 - 10;
03733 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_twoway_signal * 73) {
03734 DiagDirection exitdir = TrackdirToExitdir(i);
03735 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03736
03737 exitdir = ReverseDiagDir(exitdir);
03738
03739
03740 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckVehicleAtSignal)) return;
03741 }
03742 }
03743
03744
03745
03746 if (_settings_game.pf.wait_for_pbs_path == 255 && UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03747 v->load_unload_time_rem = 0;
03748 return;
03749 }
03750 goto reverse_train_direction;
03751 } else {
03752 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03753 }
03754 } else {
03755 static const TrackBits _matching_tracks[8] = {
03756 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03757 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y,
03758 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03759 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y
03760 };
03761
03762
03763 chosen_track = (TrackBits)(byte)(_matching_tracks[GetDirectionToVehicle(prev, gp.x, gp.y)] & bits);
03764 }
03765
03766
03767 assert(
03768 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03769 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03770 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03771
03772
03773 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03774 gp.x = (gp.x & ~0xF) | b[0];
03775 gp.y = (gp.y & ~0xF) | b[1];
03776 Direction chosen_dir = (Direction)b[2];
03777
03778
03779 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03780 if (HasBit(r, VETS_CANNOT_ENTER)) {
03781 goto invalid_rail;
03782 }
03783
03784 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03785 Track track = FindFirstTrack(chosen_track);
03786 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03787 if (IsFrontEngine(v) && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03788 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03789 MarkTileDirtyByTile(gp.new_tile);
03790 }
03791
03792
03793 if (v->Next() == NULL) ClearPathReservation(v, v->tile, GetVehicleTrackdir(v));
03794
03795 v->tile = gp.new_tile;
03796
03797 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03798 TrainPowerChanged(v->First());
03799 }
03800
03801 v->u.rail.track = chosen_track;
03802 assert(v->u.rail.track);
03803 }
03804
03805
03806
03807 update_signals_crossing = true;
03808
03809 if (prev == NULL) AffectSpeedByDirChange(v, chosen_dir);
03810
03811 v->direction = chosen_dir;
03812
03813 if (IsFrontEngine(v)) {
03814 v->load_unload_time_rem = 0;
03815
03816
03817 TileIndex crossing = TrainApproachingCrossingTile(v);
03818 if (crossing != INVALID_TILE && GetCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03819
03820
03821 CheckNextTrainTile(v);
03822 }
03823 }
03824 } else {
03825
03826
03827
03828 if (!(v->vehstatus & VS_HIDDEN)) {
03829 v->cur_speed =
03830 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03831 }
03832
03833 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03834
03835 if (IsFrontEngine(v)) {
03836 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03837 CheckNextTrainTile(v);
03838 }
03839 } else {
03840 v->x_pos = gp.x;
03841 v->y_pos = gp.y;
03842 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03843 continue;
03844 }
03845 }
03846
03847
03848 v->UpdateDeltaXY(v->direction);
03849
03850 v->x_pos = gp.x;
03851 v->y_pos = gp.y;
03852
03853
03854 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03855
03856 if (prev == NULL) {
03857
03858 AffectSpeedByZChange(v, old_z);
03859 }
03860
03861 if (update_signals_crossing) {
03862 if (IsFrontEngine(v)) {
03863 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03864
03865
03866
03867
03868
03869
03870
03871
03872 if ((!HasReservedTracks(gp.new_tile, v->u.rail.track) &&
03873 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->u.rail.track))) ||
03874 !TryPathReserve(v)) {
03875 MarkTrainAsStuck(v);
03876 }
03877 }
03878 }
03879
03880
03881
03882 if (v->Next() == NULL) {
03883 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03884 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03885 }
03886 }
03887
03888
03889 if (IsFrontEngine(v) && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03890 }
03891 return;
03892
03893 invalid_rail:
03894
03895 if (prev != NULL) error("Disconnecting train");
03896
03897 reverse_train_direction:
03898 v->load_unload_time_rem = 0;
03899 v->cur_speed = 0;
03900 v->subspeed = 0;
03901 ReverseTrainDirection(v);
03902 }
03903
03909 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03910 {
03911 TrackBits *trackbits = (TrackBits *)data;
03912
03913 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03914 if ((v->u.rail.track & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03915
03916 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03917 } else {
03918 *trackbits |= v->u.rail.track;
03919 }
03920 }
03921
03922 return NULL;
03923 }
03924
03932 static void DeleteLastWagon(Vehicle *v)
03933 {
03934 Vehicle *first = v->First();
03935
03936
03937
03938
03939 Vehicle *u = v;
03940 for (; v->Next() != NULL; v = v->Next()) u = v;
03941 u->SetNext(NULL);
03942
03943 if (first != v) {
03944
03945 TrainConsistChanged(first, false);
03946
03947
03948 if (first->u.rail.track == TRACK_BIT_DEPOT) {
03949 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
03950 }
03951 }
03952
03953
03954 TrackBits trackbits = v->u.rail.track;
03955 TileIndex tile = v->tile;
03956 Owner owner = v->owner;
03957
03958 delete v;
03959 v = NULL;
03960
03961 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03962
03963 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03964 }
03965
03966 Track track = TrackBitsToTrack(trackbits);
03967 if (HasReservedTracks(tile, trackbits)) {
03968 UnreserveRailTrack(tile, track);
03969
03970
03971 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03972 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03973
03974
03975 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03976 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03977 if (HasBit(remaining_trackbits, t)) {
03978 TryReserveRailTrack(tile, t);
03979 }
03980 }
03981 }
03982
03983
03984 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03985
03986
03987 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03988 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03989 } else {
03990 SetSignalsOnBothDir(tile, track, owner);
03991 }
03992 }
03993
03994 static void ChangeTrainDirRandomly(Vehicle *v)
03995 {
03996 static const DirDiff delta[] = {
03997 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03998 };
03999
04000 do {
04001
04002 if (!(v->vehstatus & VS_HIDDEN)) {
04003 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
04004 v->UpdateDeltaXY(v->direction);
04005 v->cur_image = v->GetImage(v->direction);
04006
04007
04008
04009 if (v->u.rail.track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
04010 }
04011 } while ((v = v->Next()) != NULL);
04012 }
04013
04014 static void HandleCrashedTrain(Vehicle *v)
04015 {
04016 int state = ++v->u.rail.crash_anim_pos;
04017
04018 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
04019 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
04020 }
04021
04022 uint32 r;
04023 if (state <= 200 && Chance16R(1, 7, r)) {
04024 int index = (r * 10 >> 16);
04025
04026 Vehicle *u = v;
04027 do {
04028 if (--index < 0) {
04029 r = Random();
04030
04031 CreateEffectVehicleRel(u,
04032 GB(r, 8, 3) + 2,
04033 GB(r, 16, 3) + 2,
04034 GB(r, 0, 3) + 5,
04035 EV_EXPLOSION_SMALL);
04036 break;
04037 }
04038 } while ((u = u->Next()) != NULL);
04039 }
04040
04041 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
04042
04043 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
04044 DeleteLastWagon(v);
04045 InvalidateWindow(WC_REPLACE_VEHICLE, (v->group_id << 16) | VEH_TRAIN);
04046 }
04047 }
04048
04049 static void HandleBrokenTrain(Vehicle *v)
04050 {
04051 if (v->breakdown_ctr != 1) {
04052 v->breakdown_ctr = 1;
04053 v->cur_speed = 0;
04054
04055 if (v->breakdowns_since_last_service != 255)
04056 v->breakdowns_since_last_service++;
04057
04058 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04059 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
04060 v->MarkDirty();
04061
04062 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
04063 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
04064 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
04065 }
04066
04067 if (!(v->vehstatus & VS_HIDDEN)) {
04068 Vehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
04069 if (u != NULL) u->u.effect.animation_state = v->breakdown_delay * 2;
04070 }
04071 }
04072
04073 if (!(v->tick_counter & 3)) {
04074 if (!--v->breakdown_delay) {
04075 v->breakdown_ctr = 0;
04076 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04077 v->MarkDirty();
04078 }
04079 }
04080 }
04081
04083 static const uint16 _breakdown_speeds[16] = {
04084 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
04085 };
04086
04087
04095 static bool TrainApproachingLineEnd(Vehicle *v, bool signal)
04096 {
04097
04098 uint x = v->x_pos & 0xF;
04099 uint y = v->y_pos & 0xF;
04100
04101
04102
04103 switch (v->direction) {
04104 case DIR_N : x = ~x + ~y + 25; break;
04105 case DIR_NW: x = y;
04106 case DIR_NE: x = ~x + 16; break;
04107 case DIR_E : x = ~x + y + 9; break;
04108 case DIR_SE: x = y; break;
04109 case DIR_S : x = x + y - 7; break;
04110 case DIR_W : x = ~y + x + 9; break;
04111 default: break;
04112 }
04113
04114
04115 if (!signal && x + (v->u.rail.cached_veh_length + 1) / 2 >= TILE_SIZE) {
04116
04117 v->cur_speed = 0;
04118 ReverseTrainDirection(v);
04119 return false;
04120 }
04121
04122
04123 v->vehstatus |= VS_TRAIN_SLOWING;
04124 uint16 break_speed = _breakdown_speeds[x & 0xF];
04125 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04126
04127 return true;
04128 }
04129
04130
04136 static bool TrainCanLeaveTile(const Vehicle *v)
04137 {
04138
04139 if (v->u.rail.track == TRACK_BIT_WORMHOLE || v->u.rail.track == TRACK_BIT_DEPOT) return false;
04140
04141 TileIndex tile = v->tile;
04142
04143
04144 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
04145 DiagDirection dir = GetTunnelBridgeDirection(tile);
04146 if (DiagDirToDir(dir) == v->direction) return false;
04147 }
04148
04149
04150 if (IsRailDepotTile(tile)) {
04151 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
04152 if (DiagDirToDir(dir) == v->direction) return false;
04153 }
04154
04155 return true;
04156 }
04157
04158
04166 static TileIndex TrainApproachingCrossingTile(const Vehicle *v)
04167 {
04168 assert(IsFrontEngine(v));
04169 assert(!(v->vehstatus & VS_CRASHED));
04170
04171 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
04172
04173 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04174 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04175
04176
04177 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
04178 !CheckCompatibleRail(v, tile)) {
04179 return INVALID_TILE;
04180 }
04181
04182 return tile;
04183 }
04184
04185
04192 static bool TrainCheckIfLineEnds(Vehicle *v)
04193 {
04194
04195
04196 int t = v->breakdown_ctr;
04197 if (t > 1) {
04198 v->vehstatus |= VS_TRAIN_SLOWING;
04199
04200 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
04201 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04202 } else {
04203 v->vehstatus &= ~VS_TRAIN_SLOWING;
04204 }
04205
04206 if (!TrainCanLeaveTile(v)) return true;
04207
04208
04209 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04210
04211 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04212
04213
04214 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
04215 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
04216
04217 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
04218 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
04219
04220
04221
04222
04223 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
04224 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
04225 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
04226 }
04227
04228
04229 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
04230 return TrainApproachingLineEnd(v, false);
04231 }
04232
04233
04234 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
04235
04236
04237 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
04238
04239 return true;
04240 }
04241
04242
04243 static void TrainLocoHandler(Vehicle *v, bool mode)
04244 {
04245
04246 if (v->vehstatus & VS_CRASHED) {
04247 if (!mode) HandleCrashedTrain(v);
04248 return;
04249 }
04250
04251 if (v->u.rail.force_proceed != 0) {
04252 v->u.rail.force_proceed--;
04253 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04254 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04255 }
04256
04257
04258 if (v->breakdown_ctr != 0) {
04259 if (v->breakdown_ctr <= 2) {
04260 HandleBrokenTrain(v);
04261 return;
04262 }
04263 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
04264 }
04265
04266 if (HasBit(v->u.rail.flags, VRF_REVERSING) && v->cur_speed == 0) {
04267 ReverseTrainDirection(v);
04268 }
04269
04270
04271 if (v->vehstatus & VS_STOPPED && v->cur_speed == 0) return;
04272
04273 bool valid_order = v->current_order.IsValid() && v->current_order.GetType() != OT_CONDITIONAL;
04274 if (ProcessOrders(v) && CheckReverseTrain(v)) {
04275 v->load_unload_time_rem = 0;
04276 v->cur_speed = 0;
04277 v->subspeed = 0;
04278 ReverseTrainDirection(v);
04279 return;
04280 }
04281
04282 v->HandleLoading(mode);
04283
04284 if (v->current_order.IsType(OT_LOADING)) return;
04285
04286 if (CheckTrainStayInDepot(v)) return;
04287
04288 if (!mode) HandleLocomotiveSmokeCloud(v);
04289
04290
04291 if (!valid_order && v->current_order.IsValid()) {
04292 CheckNextTrainTile(v);
04293 }
04294
04295
04296 if (!mode && HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
04297 ++v->load_unload_time_rem;
04298
04299
04300 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;
04301
04302 if (!turn_around && v->load_unload_time_rem % _settings_game.pf.path_backoff_interval != 0 && v->u.rail.force_proceed == 0) return;
04303 if (!TryPathReserve(v)) {
04304
04305 if (turn_around) ReverseTrainDirection(v);
04306
04307 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK) && v->load_unload_time_rem > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
04308
04309 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
04310 SetDParam(0, v->index);
04311 AddNewsItem(
04312 STR_TRAIN_IS_STUCK,
04313 NS_ADVICE,
04314 v->index,
04315 0);
04316 }
04317 v->load_unload_time_rem = 0;
04318 }
04319
04320 if (v->u.rail.force_proceed == 0) return;
04321 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04322 v->load_unload_time_rem = 0;
04323 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04324 }
04325 }
04326
04327 if (v->current_order.IsType(OT_LEAVESTATION)) {
04328 v->current_order.Free();
04329 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04330 return;
04331 }
04332
04333 int j = UpdateTrainSpeed(v);
04334
04335
04336 if (v->cur_speed == 0 && v->u.rail.last_speed == 0 && v->vehstatus & VS_STOPPED) {
04337 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04338 }
04339
04340 int adv_spd = (v->direction & 1) ? 192 : 256;
04341 if (j < adv_spd) {
04342
04343 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04344 } else {
04345 TrainCheckIfLineEnds(v);
04346
04347 for (;;) {
04348 j -= adv_spd;
04349 TrainController(v, NULL);
04350
04351 if (CheckTrainCollision(v)) break;
04352
04353 adv_spd = (v->direction & 1) ? 192 : 256;
04354
04355
04356 if (j < adv_spd || v->cur_speed == 0) break;
04357
04358 OrderType order_type = v->current_order.GetType();
04359
04360 if ((order_type == OT_GOTO_WAYPOINT &&
04361 v->dest_tile == v->tile) ||
04362 (order_type == OT_GOTO_STATION &&
04363 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
04364 IsTileType(v->tile, MP_STATION) &&
04365 v->current_order.GetDestination() == GetStationIndex(v->tile))) {
04366 ProcessOrders(v);
04367 }
04368 }
04369 SetLastSpeed(v, v->cur_speed);
04370 }
04371
04372 for (Vehicle *u = v; u != NULL; u = u->Next()) {
04373 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04374
04375 u->UpdateViewport(false, false);
04376 }
04377
04378 if (v->progress == 0) v->progress = j;
04379 }
04380
04381
04382
04383 Money Train::GetRunningCost() const
04384 {
04385 Money cost = 0;
04386 const Vehicle *v = this;
04387
04388 do {
04389 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
04390
04391 byte cost_factor = GetVehicleProperty(v, 0x0D, rvi->running_cost);
04392 if (cost_factor == 0) continue;
04393
04394
04395 if (IsMultiheaded(v)) cost_factor /= 2;
04396
04397 cost += cost_factor * GetPriceByIndex(rvi->running_cost_class);
04398 } while ((v = GetNextVehicle(v)) != NULL);
04399
04400 return cost;
04401 }
04402
04403
04404 void Train::Tick()
04405 {
04406 if (_age_cargo_skip_counter == 0) this->cargo.AgeCargo();
04407
04408 this->tick_counter++;
04409
04410 if (IsFrontEngine(this)) {
04411 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04412 this->current_order_time++;
04413
04414 TrainLocoHandler(this, false);
04415
04416
04417 if (this->type == VEH_TRAIN && IsFrontEngine(this))
04418 TrainLocoHandler(this, true);
04419 } else if (IsFreeWagon(this) && HASBITS(this->vehstatus, VS_CRASHED)) {
04420
04421 if (++this->u.rail.crash_anim_pos >= 4400) delete this;
04422 }
04423 }
04424
04425 static void CheckIfTrainNeedsService(Vehicle *v)
04426 {
04427 static const uint MAX_ACCEPTABLE_DEPOT_DIST = 16;
04428
04429 if (_settings_game.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04430 if (v->IsInDepot()) {
04431 VehicleServiceInDepot(v);
04432 return;
04433 }
04434
04435 TrainFindDepotData tfdd = FindClosestTrainDepot(v, MAX_ACCEPTABLE_DEPOT_DIST);
04436
04437 if (tfdd.best_length == UINT_MAX || tfdd.best_length > MAX_ACCEPTABLE_DEPOT_DIST) {
04438 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04439
04440
04441
04442 v->current_order.MakeDummy();
04443 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04444 }
04445 return;
04446 }
04447
04448 const Depot *depot = GetDepotByTile(tfdd.tile);
04449
04450 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04451 v->current_order.GetDestination() != depot->index &&
04452 !Chance16(3, 16)) {
04453 return;
04454 }
04455
04456 v->current_order.MakeGoToDepot(depot->index, ODTFB_SERVICE);
04457 v->dest_tile = tfdd.tile;
04458 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04459 }
04460
04461 void Train::OnNewDay()
04462 {
04463 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04464
04465 if (IsFrontEngine(this)) {
04466 CheckVehicleBreakdown(this);
04467 AgeVehicle(this);
04468
04469 CheckIfTrainNeedsService(this);
04470
04471 CheckOrders(this);
04472
04473
04474 if (this->current_order.IsType(OT_GOTO_STATION)) {
04475 TileIndex tile = GetStation(this->current_order.GetDestination())->train_tile;
04476 if (tile != INVALID_TILE) this->dest_tile = tile;
04477 }
04478
04479 if (this->running_ticks != 0) {
04480
04481 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04482
04483 this->profit_this_year -= cost.GetCost();
04484 this->running_ticks = 0;
04485
04486 SubtractMoneyFromCompanyFract(this->owner, cost);
04487
04488 InvalidateWindow(WC_VEHICLE_DETAILS, this->index);
04489 InvalidateWindowClasses(WC_TRAINS_LIST);
04490 }
04491 } else if (IsTrainEngine(this)) {
04492
04493 AgeVehicle(this);
04494 }
04495 }
04496
04497 void InitializeTrains()
04498 {
04499 _age_cargo_skip_counter = 1;
04500 }