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
01065
01066 if (HasBit(p2, 0)) {
01067 const Vehicle *u;
01068 for (u = src_head; u != src && u != NULL; u = GetNextVehicle(u))
01069 src_len--;
01070 } else {
01071
01072 src_len = 1;
01073 }
01074
01075 if (src_len + dst_len > max_len) {
01076
01077 if (dst_head != NULL && IsFrontEngine(dst_head)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01078
01079 if (dst_head == NULL && IsTrainEngine(src)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01080 }
01081 } else {
01082
01083 if (src_len > max_len && src == src_head && IsTrainEngine(GetNextVehicle(src_head)))
01084 return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01085 }
01086 }
01087
01088
01089 if (dst == NULL && !IsFrontEngine(src) && IsTrainEngine(src)) {
01090 UnitID unit_num = ((flags & DC_AUTOREPLACE) != 0 ? 0 : GetFreeUnitNumber(VEH_TRAIN));
01091 if (unit_num > _settings_game.vehicle.max_trains)
01092 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01093
01094 if (flags & DC_EXEC) src->unitnumber = unit_num;
01095 }
01096
01097
01098 if (!HasBit(p2, 0) && (IsFreeWagon(src) || (IsFrontEngine(src) && dst == NULL)) && (flags & DC_AUTOREPLACE) == 0) {
01099 Vehicle *second = GetNextUnit(src);
01100 if (second != NULL && IsTrainEngine(second) && GetFreeUnitNumber(VEH_TRAIN) > _settings_game.vehicle.max_trains) {
01101 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01102 }
01103 }
01104
01105
01106
01107
01108
01109
01110
01111
01112 bool src_in_dst = false;
01113 for (Vehicle *v = dst_head; !src_in_dst && v != NULL; v = v->Next()) src_in_dst = v == src;
01114
01115
01116
01117
01118
01119
01120
01121
01122
01123 if (dst_head != NULL && !src_in_dst && (flags & DC_AUTOREPLACE) == 0) {
01124
01125
01126
01127
01128
01129
01130
01131
01132
01133 Vehicle *dst_tail = dst_head;
01134 while (dst_tail->Next() != NULL) dst_tail = dst_tail->Next();
01135
01136 Vehicle *orig_tail = dst_tail;
01137 Vehicle *next_to_attach = src;
01138 Vehicle *src_previous = src->Previous();
01139
01140 while (next_to_attach != NULL) {
01141
01142 if (!IsArticulatedPart(next_to_attach) && !IsRearDualheaded(next_to_attach)) {
01143
01144 EngineID first_engine = next_to_attach->u.rail.first_engine;
01145 next_to_attach->u.rail.first_engine = INVALID_ENGINE;
01146
01147 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, dst_head->engine_type, next_to_attach, dst_head);
01148
01149
01150 next_to_attach->u.rail.first_engine = first_engine;
01151
01152 if (callback != CALLBACK_FAILED) {
01153 StringID error = STR_NULL;
01154
01155 if (callback == 0xFD) error = STR_INCOMPATIBLE_RAIL_TYPES;
01156 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(dst_head->engine_type), 0xD000 + callback);
01157
01158 if (error != STR_NULL) {
01159
01160
01161
01162
01163
01164
01165
01166
01167
01168 dst_tail->SetNext(next_to_attach);
01169 orig_tail->SetNext(NULL);
01170 if (src_previous != NULL) src_previous->SetNext(src);
01171
01172 return_cmd_error(error);
01173 }
01174 }
01175 }
01176
01177
01178 if (!HasBit(p2, 0)) break;
01179
01180
01181
01182
01183
01184
01185
01186 Vehicle *to_add = next_to_attach;
01187 next_to_attach = next_to_attach->Next();
01188
01189 to_add->SetNext(NULL);
01190 dst_tail->SetNext(to_add);
01191 dst_tail = dst_tail->Next();
01192 }
01193
01194
01195
01196
01197
01198
01199
01200
01201 orig_tail->SetNext(NULL);
01202 if (src_previous != NULL) src_previous->SetNext(src);
01203 }
01204
01205
01206 if (flags & DC_EXEC) {
01207
01208
01209 if (IsFrontEngine(src) && !IsDefaultGroupID(src->group_id)) {
01210 Vehicle *v = GetNextVehicle(src);
01211
01212 if (v != NULL && IsTrainEngine(v)) {
01213 v->group_id = src->group_id;
01214 src->group_id = DEFAULT_GROUP;
01215 }
01216 }
01217
01218 if (HasBit(p2, 0)) {
01219
01220 if (src != src_head) {
01221 Vehicle *v = src_head;
01222 while (GetNextVehicle(v) != src) v = GetNextVehicle(v);
01223 GetLastEnginePart(v)->SetNext(NULL);
01224 } else {
01225 InvalidateWindowData(WC_VEHICLE_DEPOT, src_head->tile);
01226 src_head = NULL;
01227 }
01228 } else {
01229
01230 if (src_head == dst_head) dst_head = NULL;
01231
01232 src_head = UnlinkWagon(src, src_head);
01233 GetLastEnginePart(src)->SetNext(NULL);
01234 }
01235
01236 if (dst == NULL) {
01237
01238 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01239
01240
01241 if (IsTrainEngine(src)) {
01242 if (!IsFrontEngine(src)) {
01243
01244 SetFrontEngine(src);
01245 assert(src->orders.list == NULL);
01246
01247
01248 if (!IsDefaultGroupID(src->group_id) && IsValidGroupID(src->group_id)) {
01249 GetGroup(src->group_id)->num_engines[src->engine_type]--;
01250 }
01251
01252
01253 src->group_id = DEFAULT_GROUP;
01254 }
01255 } else {
01256 SetFreeWagon(src);
01257 }
01258 dst_head = src;
01259 } else {
01260 if (IsFrontEngine(src)) {
01261
01262 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01263 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01264 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01265 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01266 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01267 DeleteVehicleOrders(src);
01268 RemoveVehicleFromGroup(src);
01269 }
01270
01271 if (IsFrontEngine(src) || IsFreeWagon(src)) {
01272 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01273 ClearFrontEngine(src);
01274 ClearFreeWagon(src);
01275 src->unitnumber = 0;
01276 }
01277
01278
01279 {
01280 Vehicle *v;
01281
01282 for (v = src; GetNextVehicle(v) != NULL; v = GetNextVehicle(v)) {}
01283 GetLastEnginePart(v)->SetNext(dst->Next());
01284 }
01285 dst->SetNext(src);
01286 }
01287
01288 if (src->u.rail.other_multiheaded_part != NULL) {
01289 if (src->u.rail.other_multiheaded_part == src_head) {
01290 src_head = src_head->Next();
01291 }
01292 AddWagonToConsist(src->u.rail.other_multiheaded_part, src);
01293 }
01294
01295
01296
01297
01298 if (src_head != NULL && !IsFrontEngine(src_head) && IsTrainEngine(src_head)) {
01299
01300
01301 const GroupID tmp_g = src_head->group_id;
01302 CmdMoveRailVehicle(0, flags, src_head->index | (INVALID_VEHICLE << 16), 1, text);
01303 SetTrainGroupID(src_head, tmp_g);
01304 src_head = NULL;
01305 }
01306
01307 if (src_head != NULL) {
01308 NormaliseTrainConsist(src_head);
01309 TrainConsistChanged(src_head, false);
01310 UpdateTrainGroupID(src_head);
01311 if (IsFrontEngine(src_head)) {
01312
01313 InvalidateWindow(WC_VEHICLE_REFIT, src_head->index);
01314 InvalidateWindowWidget(WC_VEHICLE_VIEW, src_head->index, VVW_WIDGET_REFIT_VEH);
01315 }
01316
01317 InvalidateWindow(WC_VEHICLE_DEPOT, src_head->tile);
01318 }
01319
01320 if (dst_head != NULL) {
01321 NormaliseTrainConsist(dst_head);
01322 TrainConsistChanged(dst_head, false);
01323 UpdateTrainGroupID(dst_head);
01324 if (IsFrontEngine(dst_head)) {
01325
01326 InvalidateWindowWidget(WC_VEHICLE_VIEW, dst_head->index, VVW_WIDGET_REFIT_VEH);
01327 InvalidateWindow(WC_VEHICLE_REFIT, dst_head->index);
01328 }
01329
01330 InvalidateWindow(WC_VEHICLE_DEPOT, dst_head->tile);
01331 }
01332
01333 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01334 }
01335
01336 return CommandCost();
01337 }
01338
01348 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01349 {
01350
01351 Window *w = NULL;
01352
01353 if (!IsValidVehicleID(p1) || p2 > 1) return CMD_ERROR;
01354
01355 Vehicle *v = GetVehicle(p1);
01356
01357 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01358
01359 if (HASBITS(v->vehstatus, VS_CRASHED)) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
01360
01361 while (IsArticulatedPart(v)) v = v->Previous();
01362 Vehicle *first = v->First();
01363
01364
01365 if (CheckTrainStoppedInDepot(first) < 0) {
01366 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01367 }
01368
01369 if (IsRearDualheaded(v)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01370
01371 if (flags & DC_EXEC) {
01372 if (v == first && IsFrontEngine(first)) {
01373 DeleteWindowById(WC_VEHICLE_VIEW, first->index);
01374 DeleteWindowById(WC_VEHICLE_ORDERS, first->index);
01375 DeleteWindowById(WC_VEHICLE_REFIT, first->index);
01376 DeleteWindowById(WC_VEHICLE_DETAILS, first->index);
01377 DeleteWindowById(WC_VEHICLE_TIMETABLE, first->index);
01378 }
01379 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
01380 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01381 }
01382
01383 CommandCost cost(EXPENSES_NEW_VEHICLES);
01384 switch (p2) {
01385 case 0: {
01386 bool switch_engine = false;
01387
01388
01389
01390 Vehicle *rear = (IsMultiheaded(v) &&
01391 IsTrainEngine(v)) ? v->u.rail.other_multiheaded_part : NULL;
01392
01393 if (rear != NULL) {
01394 cost.AddCost(-rear->value);
01395 if (flags & DC_EXEC) {
01396 UnlinkWagon(rear, first);
01397 delete rear;
01398 }
01399 }
01400
01401
01402
01403 if (v == first) {
01404 Vehicle *new_f = GetNextVehicle(first);
01405
01406
01407
01408
01409 if (new_f != NULL && IsTrainEngine(new_f)) {
01410 if (IsTrainEngine(first)) {
01411
01412 switch_engine = true;
01413
01414 if (flags & DC_EXEC) {
01415
01416 new_f->group_id = first->group_id;
01417 first->group_id = DEFAULT_GROUP;
01418
01419
01420 new_f->orders.list = first->orders.list;
01421 new_f->AddToShared(first);
01422 DeleteVehicleOrders(first);
01423
01424
01425 new_f->CopyVehicleConfigAndStatistics(first);
01426
01427
01428 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_f);
01429 }
01430 } else {
01431
01432
01433
01434 cost.AddCost(DoCommand(0, new_f->index | INVALID_VEHICLE << 16, 1, flags, CMD_MOVE_RAIL_VEHICLE));
01435 if (cost.Failed()) return cost;
01436 }
01437 }
01438 }
01439
01440
01441 cost.AddCost(-v->value);
01442 if (flags & DC_EXEC) {
01443 first = UnlinkWagon(v, first);
01444 delete v;
01445
01446
01447
01448 if (switch_engine) SetFrontEngine(first);
01449
01450
01451 if (first != NULL) {
01452 NormaliseTrainConsist(first);
01453 TrainConsistChanged(first, false);
01454 UpdateTrainGroupID(first);
01455 if (IsFrontEngine(first)) InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01456 }
01457
01458 }
01459 } break;
01460 case 1: {
01461
01462
01463
01464 for (Vehicle *tmp; v != NULL; v = tmp) {
01465 tmp = GetNextVehicle(v);
01466
01467 if (IsMultiheaded(v)) {
01468 if (IsTrainEngine(v)) {
01469
01470 Vehicle *rear = v->u.rail.other_multiheaded_part;
01471
01472 if (rear != NULL) {
01473 cost.AddCost(-rear->value);
01474
01475
01476
01477
01478
01479
01480
01481 if (tmp == rear) tmp = GetNextVehicle(tmp);
01482
01483 if (flags & DC_EXEC) {
01484 first = UnlinkWagon(rear, first);
01485 delete rear;
01486 }
01487 }
01488 } else if (v->u.rail.other_multiheaded_part != NULL) {
01489
01490 continue;
01491 }
01492 }
01493
01494 cost.AddCost(-v->value);
01495 if (flags & DC_EXEC) {
01496 first = UnlinkWagon(v, first);
01497 delete v;
01498 }
01499 }
01500
01501
01502 if (flags & DC_EXEC && first != NULL) {
01503 NormaliseTrainConsist(first);
01504 TrainConsistChanged(first, false);
01505 UpdateTrainGroupID(first);
01506 InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01507 }
01508 } break;
01509 }
01510 return cost;
01511 }
01512
01513 void Train::UpdateDeltaXY(Direction direction)
01514 {
01515 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01516 static const uint32 _delta_xy_table[8] = {
01517 MKIT(3, 3, -1, -1),
01518 MKIT(3, 7, -1, -3),
01519 MKIT(3, 3, -1, -1),
01520 MKIT(7, 3, -3, -1),
01521 MKIT(3, 3, -1, -1),
01522 MKIT(3, 7, -1, -3),
01523 MKIT(3, 3, -1, -1),
01524 MKIT(7, 3, -3, -1),
01525 };
01526 #undef MKIT
01527
01528 uint32 x = _delta_xy_table[direction];
01529 this->x_offs = GB(x, 0, 8);
01530 this->y_offs = GB(x, 8, 8);
01531 this->x_extent = GB(x, 16, 8);
01532 this->y_extent = GB(x, 24, 8);
01533 this->z_extent = 6;
01534 }
01535
01536 static inline void SetLastSpeed(Vehicle *v, int spd)
01537 {
01538 int old = v->u.rail.last_speed;
01539 if (spd != old) {
01540 v->u.rail.last_speed = spd;
01541 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01542 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01543 }
01544 }
01545 }
01546
01548 static void MarkTrainAsStuck(Vehicle *v)
01549 {
01550 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01551
01552 SetBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01553
01554
01555 if (v->current_order.IsType(OT_LOADING)) return;
01556
01557 v->load_unload_time_rem = 0;
01558
01559
01560 v->cur_speed = 0;
01561 v->subspeed = 0;
01562 SetLastSpeed(v, 0);
01563
01564 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01565 }
01566 }
01567
01568 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01569 {
01570 uint16 flag1 = *swap_flag1;
01571 uint16 flag2 = *swap_flag2;
01572
01573
01574 ClrBit(*swap_flag1, VRF_GOINGUP);
01575 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01576 ClrBit(*swap_flag2, VRF_GOINGUP);
01577 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01578
01579
01580 if (HasBit(flag1, VRF_GOINGUP)) {
01581 SetBit(*swap_flag2, VRF_GOINGDOWN);
01582 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01583 SetBit(*swap_flag2, VRF_GOINGUP);
01584 }
01585 if (HasBit(flag2, VRF_GOINGUP)) {
01586 SetBit(*swap_flag1, VRF_GOINGDOWN);
01587 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01588 SetBit(*swap_flag1, VRF_GOINGUP);
01589 }
01590 }
01591
01592 static void ReverseTrainSwapVeh(Vehicle *v, int l, int r)
01593 {
01594 Vehicle *a, *b;
01595
01596
01597 for (a = v; l != 0; l--) a = a->Next();
01598 for (b = v; r != 0; r--) b = b->Next();
01599
01600 if (a != b) {
01601
01602 {
01603 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01604 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01605 a->vehstatus = tmp;
01606 }
01607
01608 Swap(a->u.rail.track, b->u.rail.track);
01609 Swap(a->direction, b->direction);
01610
01611
01612 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01613 if (b->u.rail.track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01614
01615 Swap(a->x_pos, b->x_pos);
01616 Swap(a->y_pos, b->y_pos);
01617 Swap(a->tile, b->tile);
01618 Swap(a->z_pos, b->z_pos);
01619
01620 SwapTrainFlags(&a->u.rail.flags, &b->u.rail.flags);
01621
01622
01623 a->UpdateViewport(true, true);
01624 b->UpdateViewport(true, true);
01625
01626
01627 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01628 if (b->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01629 } else {
01630 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01631 a->UpdateViewport(true, true);
01632
01633 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01634 }
01635
01636
01637 TrainPowerChanged(v);
01638 }
01639
01640
01646 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01647 {
01648 return (v->type == VEH_TRAIN) ? v : NULL;
01649 }
01650
01651
01658 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01659 {
01660
01661 if (v->type != VEH_TRAIN || !IsFrontEngine(v) || v->vehstatus & VS_CRASHED) return NULL;
01662
01663 TileIndex tile = *(TileIndex*)data;
01664
01665 if (TrainApproachingCrossingTile(v) != tile) return NULL;
01666
01667 return v;
01668 }
01669
01670
01677 static bool TrainApproachingCrossing(TileIndex tile)
01678 {
01679 assert(IsLevelCrossingTile(tile));
01680
01681 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01682 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01683
01684 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01685
01686 dir = ReverseDiagDir(dir);
01687 tile_from = tile + TileOffsByDiagDir(dir);
01688
01689 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01690 }
01691
01692
01699 void UpdateLevelCrossing(TileIndex tile, bool sound)
01700 {
01701 assert(IsLevelCrossingTile(tile));
01702
01703
01704 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || GetCrossingReservation(tile);
01705
01706 if (new_state != IsCrossingBarred(tile)) {
01707 if (new_state && sound) {
01708 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01709 }
01710 SetCrossingBarred(tile, new_state);
01711 MarkTileDirtyByTile(tile);
01712 }
01713 }
01714
01715
01721 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01722 {
01723 if (!IsCrossingBarred(tile)) {
01724 BarCrossing(tile);
01725 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01726 MarkTileDirtyByTile(tile);
01727 }
01728 }
01729
01730
01736 static void AdvanceWagonsBeforeSwap(Vehicle *v)
01737 {
01738 Vehicle *base = v;
01739 Vehicle *first = base;
01740 Vehicle *last = GetLastVehicleInChain(v);
01741 uint length = CountVehiclesInChain(v);
01742
01743 while (length > 2) {
01744 last = last->Previous();
01745 first = first->Next();
01746
01747 int differential = base->u.rail.cached_veh_length - last->u.rail.cached_veh_length;
01748
01749
01750
01751 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01752
01753 base = first;
01754 length -= 2;
01755 }
01756 }
01757
01758
01764 static void AdvanceWagonsAfterSwap(Vehicle *v)
01765 {
01766
01767 Vehicle *dep = v;
01768 while (dep->Next() != NULL && (dep->u.rail.track == TRACK_BIT_DEPOT || dep->Next()->u.rail.track != TRACK_BIT_DEPOT)) {
01769 dep = dep->Next();
01770 }
01771
01772 Vehicle *leave = dep->Next();
01773
01774 if (leave != NULL) {
01775
01776 int d = TicksToLeaveDepot(dep);
01777
01778 if (d <= 0) {
01779 leave->vehstatus &= ~VS_HIDDEN;
01780 leave->u.rail.track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01781 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01782 }
01783 } else {
01784 dep = NULL;
01785 }
01786
01787 Vehicle *base = v;
01788 Vehicle *first = base;
01789 Vehicle *last = GetLastVehicleInChain(v);
01790 uint length = CountVehiclesInChain(v);
01791
01792
01793
01794 bool nomove = (dep == NULL);
01795
01796 while (length > 2) {
01797
01798
01799 if (base == dep) break;
01800
01801
01802 if (last == dep) nomove = true;
01803
01804 last = last->Previous();
01805 first = first->Next();
01806
01807 int differential = last->u.rail.cached_veh_length - base->u.rail.cached_veh_length;
01808
01809
01810 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01811
01812 base = first;
01813 length -= 2;
01814 }
01815 }
01816
01817
01818 static void ReverseTrainDirection(Vehicle *v)
01819 {
01820 if (IsRailDepotTile(v->tile)) {
01821 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01822 }
01823
01824
01825 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
01826
01827
01828 TileIndex crossing = TrainApproachingCrossingTile(v);
01829
01830
01831 int r = CountVehiclesInChain(v) - 1;
01832
01833 AdvanceWagonsBeforeSwap(v);
01834
01835
01836 int l = 0;
01837 do {
01838 ReverseTrainSwapVeh(v, l++, r--);
01839 } while (l <= r);
01840
01841 AdvanceWagonsAfterSwap(v);
01842
01843 if (IsRailDepotTile(v->tile)) {
01844 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01845 }
01846
01847 ToggleBit(v->u.rail.flags, VRF_TOGGLE_REVERSE);
01848
01849 ClrBit(v->u.rail.flags, VRF_REVERSING);
01850
01851
01852 TrainConsistChanged(v, true);
01853
01854
01855 for (Vehicle *u = v; u != NULL; u = u->Next()) u->UpdateViewport(false, false);
01856
01857
01858 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01859
01860
01861 crossing = TrainApproachingCrossingTile(v);
01862 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01863
01864
01865 if (v->u.rail.track & TRACK_BIT_DEPOT) {
01866
01867 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01868 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01869 return;
01870 }
01871
01872
01873
01874 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
01875 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01876
01877 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01878
01879
01880 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01881 HasSignalOnTrackdir(v->tile, GetVehicleTrackdir(v)) &&
01882 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->u.rail.track))));
01883
01884 if (IsRailwayStationTile(v->tile)) SetRailwayStationPlatformReservation(v->tile, TrackdirToExitdir(GetVehicleTrackdir(v)), true);
01885 if (TryPathReserve(v, false, first_tile_okay)) {
01886
01887 CheckNextTrainTile(v);
01888 } else if (v->current_order.GetType() != OT_LOADING) {
01889
01890 MarkTrainAsStuck(v);
01891 }
01892 } else if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01893
01894 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01895 v->load_unload_time_rem = 0;
01896 }
01897 }
01898
01905 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01906 {
01907 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01908
01909 Vehicle *v = GetVehicle(p1);
01910
01911 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01912
01913 if (p2 != 0) {
01914
01915
01916 if (IsMultiheaded(v) || HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) {
01917 return_cmd_error(STR_ERROR_CAN_T_REVERSE_DIRECTION_RAIL_VEHICLE_MULTIPLE_UNITS);
01918 }
01919
01920 Vehicle *front = v->First();
01921
01922 if (CheckTrainStoppedInDepot(front) < 0) {
01923 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01924 }
01925
01926 if (flags & DC_EXEC) {
01927 ToggleBit(v->u.rail.flags, VRF_REVERSE_DIRECTION);
01928 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
01929 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
01930 }
01931 } else {
01932
01933 if (v->vehstatus & VS_CRASHED || v->breakdown_ctr != 0) return CMD_ERROR;
01934
01935 if (flags & DC_EXEC) {
01936
01937 if (v->current_order.IsType(OT_LOADING)) {
01938 const Vehicle *last = v;
01939 while (last->Next() != NULL) last = last->Next();
01940
01941
01942 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01943 v->LeaveStation();
01944 }
01945 }
01946
01947 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL && v->cur_speed != 0) {
01948 ToggleBit(v->u.rail.flags, VRF_REVERSING);
01949 } else {
01950 v->cur_speed = 0;
01951 SetLastSpeed(v, 0);
01952 HideFillingPercent(&v->fill_percent_te_id);
01953 ReverseTrainDirection(v);
01954 }
01955 }
01956 }
01957 return CommandCost();
01958 }
01959
01966 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01967 {
01968 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01969
01970 Vehicle *v = GetVehicle(p1);
01971
01972 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01973
01974 if (flags & DC_EXEC) v->u.rail.force_proceed = 0x50;
01975
01976 return CommandCost();
01977 }
01978
01989 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01990 {
01991 CargoID new_cid = GB(p2, 0, 8);
01992 byte new_subtype = GB(p2, 8, 8);
01993 bool only_this = HasBit(p2, 16);
01994
01995 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01996
01997 Vehicle *v = GetVehicle(p1);
01998
01999 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
02000 if (CheckTrainStoppedInDepot(v) < 0) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02001 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_REFIT_DESTROYED_VEHICLE);
02002
02003
02004 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02005
02006 CommandCost cost(EXPENSES_TRAIN_RUN);
02007 uint num = 0;
02008
02009 do {
02010
02011
02012
02013 if (!CanRefitTo(v->engine_type, new_cid)) continue;
02014
02015 const Engine *e = GetEngine(v->engine_type);
02016 if (e->CanCarryCargo()) {
02017 uint16 amount = CALLBACK_FAILED;
02018
02019 if (HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_REFIT_CAPACITY)) {
02020
02021 CargoID temp_cid = v->cargo_type;
02022 byte temp_subtype = v->cargo_subtype;
02023 v->cargo_type = new_cid;
02024 v->cargo_subtype = new_subtype;
02025
02026 amount = GetVehicleCallback(CBID_VEHICLE_REFIT_CAPACITY, 0, 0, v->engine_type, v);
02027
02028 v->cargo_type = temp_cid;
02029 v->cargo_subtype = temp_subtype;
02030 }
02031
02032 if (amount == CALLBACK_FAILED) {
02033 CargoID old_cid = e->GetDefaultCargoType();
02034
02035
02036
02037
02038 amount = e->u.rail.capacity;
02039 switch (old_cid) {
02040 case CT_PASSENGERS: break;
02041 case CT_MAIL:
02042 case CT_GOODS: amount *= 2; break;
02043 default: amount *= 4; break;
02044 }
02045 switch (new_cid) {
02046 case CT_PASSENGERS: break;
02047 case CT_MAIL:
02048 case CT_GOODS: amount /= 2; break;
02049 default: amount /= 4; break;
02050 }
02051 }
02052
02053 if (new_cid != v->cargo_type) {
02054 cost.AddCost(GetRefitCost(v->engine_type));
02055 }
02056
02057 num += amount;
02058 if (flags & DC_EXEC) {
02059 v->cargo.Truncate((v->cargo_type == new_cid) ? amount : 0);
02060 v->cargo_type = new_cid;
02061 v->cargo_cap = amount;
02062 v->cargo_subtype = new_subtype;
02063 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
02064 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02065 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02066 }
02067 }
02068 } while ((v = v->Next()) != NULL && !only_this);
02069
02070 _returned_refit_capacity = num;
02071
02072
02073 if (flags & DC_EXEC) TrainConsistChanged(GetVehicle(p1)->First(), false);
02074
02075 return cost;
02076 }
02077
02078 struct TrainFindDepotData {
02079 uint best_length;
02080 TileIndex tile;
02081 Owner owner;
02086 bool reverse;
02087 };
02088
02089 static bool NtpCallbFindDepot(TileIndex tile, TrainFindDepotData *tfdd, int track, uint length)
02090 {
02091 if (IsTileType(tile, MP_RAILWAY) &&
02092 IsTileOwner(tile, tfdd->owner) &&
02093 IsRailDepot(tile)) {
02094
02095 tfdd->best_length = length / DIAG_FACTOR;
02096 tfdd->tile = tile;
02097 return true;
02098 }
02099
02100 return false;
02101 }
02102
02105 static TrainFindDepotData FindClosestTrainDepot(Vehicle *v, int max_distance)
02106 {
02107 assert(!(v->vehstatus & VS_CRASHED));
02108
02109 TrainFindDepotData tfdd;
02110 tfdd.owner = v->owner;
02111 tfdd.reverse = false;
02112
02113 if (IsRailDepotTile(v->tile)) {
02114 tfdd.tile = v->tile;
02115 tfdd.best_length = 0;
02116 return tfdd;
02117 }
02118
02119 PBSTileInfo origin = FollowTrainReservation(v);
02120 if (IsRailDepotTile(origin.tile)) {
02121 tfdd.tile = origin.tile;
02122 tfdd.best_length = 0;
02123 return tfdd;
02124 }
02125
02126 tfdd.best_length = UINT_MAX;
02127
02128 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02129 if ((_settings_game.pf.reserve_paths || HasReservedTracks(v->tile, v->u.rail.track)) && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02130
02131 switch (pathfinder) {
02132 case VPF_YAPF: {
02133 bool found = YapfFindNearestRailDepotTwoWay(v, max_distance, NPF_INFINITE_PENALTY, &tfdd.tile, &tfdd.reverse);
02134 tfdd.best_length = found ? max_distance / 2 : UINT_MAX;
02135 } break;
02136
02137 case VPF_NPF: {
02138 const Vehicle *last = GetLastVehicleInChain(v);
02139 Trackdir trackdir = GetVehicleTrackdir(v);
02140 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
02141
02142 assert(trackdir != INVALID_TRACKDIR);
02143 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);
02144 if (ftd.best_bird_dist == 0) {
02145
02146 tfdd.tile = ftd.node.tile;
02147
02148
02149
02150
02151 tfdd.best_length = ftd.best_path_dist / NPF_TILE_LENGTH;
02152 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) tfdd.reverse = true;
02153 }
02154 } break;
02155
02156 default:
02157 case VPF_NTP: {
02158
02159 DiagDirection i = TrainExitDir(v->direction, v->u.rail.track);
02160 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02161 if (tfdd.best_length == UINT_MAX){
02162 tfdd.reverse = true;
02163
02164 i = TrainExitDir(ReverseDir(v->direction), v->u.rail.track);
02165 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02166 }
02167 } break;
02168 }
02169
02170 return tfdd;
02171 }
02172
02173 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02174 {
02175 TrainFindDepotData tfdd = FindClosestTrainDepot(this, 0);
02176 if (tfdd.best_length == UINT_MAX) return false;
02177
02178 if (location != NULL) *location = tfdd.tile;
02179 if (destination != NULL) *destination = GetDepotByTile(tfdd.tile)->index;
02180 if (reverse != NULL) *reverse = tfdd.reverse;
02181
02182 return true;
02183 }
02184
02193 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02194 {
02195 if (p2 & DEPOT_MASS_SEND) {
02196
02197 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02198 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02199 }
02200
02201 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02202
02203 Vehicle *v = GetVehicle(p1);
02204
02205 if (v->type != VEH_TRAIN) return CMD_ERROR;
02206
02207 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02208 }
02209
02210
02211 void OnTick_Train()
02212 {
02213 _age_cargo_skip_counter = (_age_cargo_skip_counter == 0) ? 184 : (_age_cargo_skip_counter - 1);
02214 }
02215
02216 static const int8 _vehicle_smoke_pos[8] = {
02217 1, 1, 1, 0, -1, -1, -1, 0
02218 };
02219
02220 static void HandleLocomotiveSmokeCloud(const Vehicle *v)
02221 {
02222 bool sound = false;
02223
02224 if (v->vehstatus & VS_TRAIN_SLOWING || v->load_unload_time_rem != 0 || v->cur_speed < 2) {
02225 return;
02226 }
02227
02228 const Vehicle *u = v;
02229
02230 do {
02231 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02232 int effect_offset = GB(v->u.rail.cached_vis_effect, 0, 4) - 8;
02233 byte effect_type = GB(v->u.rail.cached_vis_effect, 4, 2);
02234 bool disable_effect = HasBit(v->u.rail.cached_vis_effect, 6);
02235
02236
02237 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02238 disable_effect ||
02239 v->vehstatus & VS_HIDDEN) {
02240 continue;
02241 }
02242
02243
02244 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02245
02246
02247 if (!HasPowerOnRail(v->u.rail.railtype, GetTileRailType(v->tile))) continue;
02248
02249 if (effect_type == 0) {
02250
02251 effect_type = rvi->engclass;
02252 } else {
02253 effect_type--;
02254 }
02255
02256 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02257 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02258
02259 if (HasBit(v->u.rail.flags, VRF_REVERSE_DIRECTION)) {
02260 x = -x;
02261 y = -y;
02262 }
02263
02264 switch (effect_type) {
02265 case 0:
02266
02267 if (GB(v->tick_counter, 0, 4) == 0) {
02268 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02269 sound = true;
02270 }
02271 break;
02272
02273 case 1:
02274
02275 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02276 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02277 sound = true;
02278 }
02279 break;
02280
02281 case 2:
02282
02283 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02284 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02285 sound = true;
02286 }
02287 break;
02288
02289 default:
02290 break;
02291 }
02292 } while ((v = v->Next()) != NULL);
02293
02294 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02295 }
02296
02297 void Train::PlayLeaveStationSound() const
02298 {
02299 static const SoundFx sfx[] = {
02300 SND_04_TRAIN,
02301 SND_0A_TRAIN_HORN,
02302 SND_0A_TRAIN_HORN,
02303 SND_47_MAGLEV_2,
02304 SND_41_MAGLEV
02305 };
02306
02307 if (PlayVehicleSound(this, VSE_START)) return;
02308
02309 EngineID engtype = this->engine_type;
02310 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02311 }
02312
02314 static void CheckNextTrainTile(Vehicle *v)
02315 {
02316
02317 if (_settings_game.pf.path_backoff_interval == 255) return;
02318
02319
02320 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->u.rail.track & TRACK_BIT_DEPOT) return;
02321
02322 if (IsRailwayStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02323
02324 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02325
02326 Trackdir td = GetVehicleTrackdir(v);
02327
02328
02329 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02330 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02331 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02332
02333 CFollowTrackRail ft(v);
02334 if (!ft.Follow(v->tile, td)) return;
02335
02336 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02337
02338 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02339 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02340
02341 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02342 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
02343 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02344 }
02345 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02346 }
02347 }
02348 }
02349 }
02350
02351 static bool CheckTrainStayInDepot(Vehicle *v)
02352 {
02353
02354 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
02355 if (u->u.rail.track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02356 }
02357
02358
02359 if (v->u.rail.cached_power == 0) {
02360 v->vehstatus |= VS_STOPPED;
02361 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02362 return true;
02363 }
02364
02365 SigSegState seg_state;
02366
02367 if (v->u.rail.force_proceed == 0) {
02368
02369 if (++v->load_unload_time_rem < 37) {
02370 InvalidateWindowClasses(WC_TRAINS_LIST);
02371 return true;
02372 }
02373
02374 v->load_unload_time_rem = 0;
02375
02376 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02377 if (seg_state == SIGSEG_FULL || GetDepotWaypointReservation(v->tile)) {
02378
02379 InvalidateWindowClasses(WC_TRAINS_LIST);
02380 return true;
02381 }
02382 } else {
02383 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02384 }
02385
02386
02387 if (v->current_order.IsType(OT_GOTO_DEPOT) && v->tile == v->dest_tile) {
02388
02389 if (GetDepotWaypointReservation(v->tile)) return true;
02390 SetDepotWaypointReservation(v->tile, true);
02391 VehicleEnterDepot(v);
02392 return true;
02393 }
02394
02395
02396 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->u.rail.force_proceed == 0) {
02397
02398 InvalidateWindowClasses(WC_TRAINS_LIST);
02399 MarkTrainAsStuck(v);
02400 return true;
02401 }
02402
02403 SetDepotWaypointReservation(v->tile, true);
02404 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02405
02406 VehicleServiceInDepot(v);
02407 InvalidateWindowClasses(WC_TRAINS_LIST);
02408 v->PlayLeaveStationSound();
02409
02410 v->u.rail.track = TRACK_BIT_X;
02411 if (v->direction & 2) v->u.rail.track = TRACK_BIT_Y;
02412
02413 v->vehstatus &= ~VS_HIDDEN;
02414 v->cur_speed = 0;
02415
02416 v->UpdateDeltaXY(v->direction);
02417 v->cur_image = v->GetImage(v->direction);
02418 VehicleMove(v, false);
02419 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02420 UpdateTrainAcceleration(v);
02421 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02422
02423 return false;
02424 }
02425
02427 static void ClearPathReservation(const Vehicle *v, TileIndex tile, Trackdir track_dir)
02428 {
02429 DiagDirection dir = TrackdirToExitdir(track_dir);
02430
02431 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02432
02433 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02434 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02435
02436 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02437
02438 SetTunnelBridgeReservation(tile, false);
02439 SetTunnelBridgeReservation(end, false);
02440
02441 if (_settings_client.gui.show_track_reservation) {
02442 MarkTileDirtyByTile(tile);
02443 MarkTileDirtyByTile(end);
02444 }
02445 }
02446 }
02447 } else if (IsRailwayStationTile(tile)) {
02448 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02449
02450
02451 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02452 SetRailwayStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02453 }
02454 } else {
02455
02456 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02457 }
02458 }
02459
02461 void FreeTrainTrackReservation(const Vehicle *v, TileIndex origin, Trackdir orig_td)
02462 {
02463 assert(IsFrontEngine(v));
02464
02465 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02466 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : GetVehicleTrackdir(v);
02467 bool free_tile = tile != v->tile || !(IsRailwayStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02468 StationID station_id = IsRailwayStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02469
02470
02471 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02472
02473 CFollowTrackRail ft(v, GetRailTypeInfo(v->u.rail.railtype)->compatible_railtypes);
02474 while (ft.Follow(tile, td)) {
02475 tile = ft.m_new_tile;
02476 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02477 td = RemoveFirstTrackdir(&bits);
02478 assert(bits == TRACKDIR_BIT_NONE);
02479
02480 if (!IsValidTrackdir(td)) break;
02481
02482 if (IsTileType(tile, MP_RAILWAY)) {
02483 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02484
02485 UnreserveRailTrack(tile, TrackdirToTrack(td));
02486 break;
02487 }
02488 if (HasPbsSignalOnTrackdir(tile, td)) {
02489 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02490
02491 break;
02492 } else {
02493
02494 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02495 MarkTileDirtyByTile(tile);
02496 }
02497 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02498 break;
02499 }
02500 }
02501
02502
02503 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);
02504
02505 free_tile = true;
02506 }
02507 }
02508
02510 struct TrainTrackFollowerData {
02511 TileIndex dest_coords;
02512 StationID station_index;
02513 uint best_bird_dist;
02514 uint best_track_dist;
02515 TrackdirByte best_track;
02516 };
02517
02518 static bool NtpCallbFindStation(TileIndex tile, TrainTrackFollowerData *ttfd, Trackdir track, uint length)
02519 {
02520
02521 if (ttfd->dest_coords == 0) return false;
02522
02523
02524 if ((ttfd->station_index == INVALID_STATION && tile == ttfd->dest_coords) || (
02525 IsTileType(tile, MP_STATION) &&
02526 IsRailwayStation(tile) &&
02527 GetStationIndex(tile) == ttfd->station_index
02528 )) {
02529
02530
02531
02532
02533
02534 ttfd->best_track = track;
02535 ttfd->best_bird_dist = 0;
02536 return true;
02537 } else {
02538
02539 uint dist = DistanceManhattan(tile, ttfd->dest_coords);
02540 if (dist < ttfd->best_bird_dist) {
02541 ttfd->best_bird_dist = dist;
02542 ttfd->best_track = track;
02543 }
02544 return false;
02545 }
02546 }
02547
02548 static void FillWithStationData(TrainTrackFollowerData *fd, const Vehicle *v)
02549 {
02550 fd->dest_coords = v->dest_tile;
02551 fd->station_index = v->current_order.IsType(OT_GOTO_STATION) ? v->current_order.GetDestination() : INVALID_STATION;
02552 }
02553
02554 static const byte _initial_tile_subcoord[6][4][3] = {
02555 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02556 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02557 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02558 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02559 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02560 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02561 };
02562
02563 static const byte _search_directions[6][4] = {
02564 { 0, 9, 2, 9 },
02565 { 9, 1, 9, 3 },
02566 { 9, 0, 3, 9 },
02567 { 1, 9, 9, 2 },
02568 { 3, 2, 9, 9 },
02569 { 9, 9, 1, 0 },
02570 };
02571
02572 static const byte _pick_track_table[6] = {1, 3, 2, 2, 0, 0};
02573
02586 static Track DoTrainPathfind(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02587 {
02588 Track best_track;
02589
02590 #ifdef PF_BENCHMARK
02591 TIC()
02592 #endif
02593
02594 if (path_not_found) *path_not_found = false;
02595
02596 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02597 if (do_track_reservation && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02598
02599 switch (pathfinder) {
02600 case VPF_YAPF: {
02601 Trackdir trackdir = YapfChooseRailTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02602 if (trackdir != INVALID_TRACKDIR) {
02603 best_track = TrackdirToTrack(trackdir);
02604 } else {
02605 best_track = FindFirstTrack(tracks);
02606 }
02607 } break;
02608
02609 case VPF_NPF: {
02610 void *perf = NpfBeginInterval();
02611
02612 NPFFindStationOrTileData fstd;
02613 NPFFillWithOrderData(&fstd, v, do_track_reservation);
02614
02615 PBSTileInfo origin = FollowTrainReservation(v);
02616 assert(IsValidTrackdir(origin.trackdir));
02617
02618 NPFFoundTargetData ftd = NPFRouteToStationOrTile(origin.tile, origin.trackdir, true, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
02619
02620 if (dest != NULL) {
02621 dest->tile = ftd.node.tile;
02622 dest->trackdir = (Trackdir)ftd.node.direction;
02623 dest->okay = ftd.res_okay;
02624 }
02625
02626 if (ftd.best_trackdir == INVALID_TRACKDIR) {
02627
02628
02629
02630 best_track = FindFirstTrack(tracks);
02631 } else {
02632
02633
02634
02635
02636 if (ftd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02637
02638 best_track = TrackdirToTrack(ftd.best_trackdir);
02639 }
02640
02641 int time = NpfEndInterval(perf);
02642 DEBUG(yapf, 4, "[NPFT] %d us - %d rounds - %d open - %d closed -- ", time, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
02643 } break;
02644
02645 default:
02646 case VPF_NTP: {
02647 void *perf = NpfBeginInterval();
02648
02649 TrainTrackFollowerData fd;
02650 FillWithStationData(&fd, v);
02651
02652
02653 fd.best_bird_dist = UINT_MAX;
02654 fd.best_track_dist = UINT_MAX;
02655 fd.best_track = INVALID_TRACKDIR;
02656
02657 NewTrainPathfind(tile - TileOffsByDiagDir(enterdir), v->dest_tile,
02658 v->u.rail.compatible_railtypes, enterdir, (NTPEnumProc*)NtpCallbFindStation, &fd);
02659
02660
02661 if (fd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02662
02663 if (fd.best_track == INVALID_TRACKDIR) {
02664
02665 best_track = FindFirstTrack(tracks);
02666 } else {
02667 best_track = TrackdirToTrack(fd.best_track);
02668 }
02669
02670 int time = NpfEndInterval(perf);
02671 DEBUG(yapf, 4, "[NTPT] %d us - %d rounds - %d open - %d closed -- ", time, 0, 0, 0);
02672 } break;
02673 }
02674
02675 #ifdef PF_BENCHMARK
02676 TOC("PF time = ", 1)
02677 #endif
02678
02679 return best_track;
02680 }
02681
02687 static PBSTileInfo ExtendTrainReservation(const Vehicle *v, TrackBits *new_tracks, DiagDirection *enterdir)
02688 {
02689 bool no_90deg_turns = _settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg;
02690 PBSTileInfo origin = FollowTrainReservation(v);
02691
02692 CFollowTrackRail ft(v);
02693
02694 TileIndex tile = origin.tile;
02695 Trackdir cur_td = origin.trackdir;
02696 while (ft.Follow(tile, cur_td)) {
02697 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02698
02699 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02700 }
02701
02702 if (no_90deg_turns) {
02703 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02704 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02705 }
02706
02707
02708 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRail(ft.m_new_tile));
02709 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02710
02711
02712
02713
02714
02715
02716 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02717
02718
02719
02720 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02721
02722
02723 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02724 if (enterdir) *enterdir = ft.m_exitdir;
02725 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02726 }
02727
02728 tile = ft.m_new_tile;
02729 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02730
02731 if (IsSafeWaitingPosition(v, tile, cur_td, true, no_90deg_turns)) {
02732 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, no_90deg_turns);
02733 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02734
02735 return PBSTileInfo(tile, cur_td, true);
02736 }
02737
02738 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02739 }
02740
02741 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02742
02743 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02744 }
02745
02746
02747 tile = origin.tile;
02748 cur_td = origin.trackdir;
02749 TileIndex stopped = ft.m_old_tile;
02750 Trackdir stopped_td = ft.m_old_td;
02751 while (tile != stopped || cur_td != stopped_td) {
02752 if (!ft.Follow(tile, cur_td)) break;
02753
02754 if (no_90deg_turns) {
02755 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02756 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02757 }
02758 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02759
02760 tile = ft.m_new_tile;
02761 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02762
02763 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02764 }
02765
02766
02767 return PBSTileInfo();
02768 }
02769
02780 static bool TryReserveSafeTrack(const Vehicle *v, TileIndex tile, Trackdir td, bool override_tailtype)
02781 {
02782 if (_settings_game.pf.pathfinder_for_trains == VPF_YAPF) {
02783 return YapfRailFindNearestSafeTile(v, tile, td, override_tailtype);
02784 } else {
02785 return NPFRouteToSafeTile(v, tile, td, override_tailtype).res_okay;
02786 }
02787 }
02788
02790 class VehicleOrderSaver
02791 {
02792 private:
02793 Vehicle *v;
02794 Order old_order;
02795 TileIndex old_dest_tile;
02796 StationID old_last_station_visited;
02797 VehicleOrderID index;
02798
02799 public:
02800 VehicleOrderSaver(Vehicle *_v) :
02801 v(_v),
02802 old_order(_v->current_order),
02803 old_dest_tile(_v->dest_tile),
02804 old_last_station_visited(_v->last_station_visited),
02805 index(_v->cur_order_index)
02806 {
02807 }
02808
02809 ~VehicleOrderSaver()
02810 {
02811 this->v->current_order = this->old_order;
02812 this->v->dest_tile = this->old_dest_tile;
02813 this->v->last_station_visited = this->old_last_station_visited;
02814 }
02815
02821 bool SwitchToNextOrder(bool skip_first)
02822 {
02823 if (this->v->GetNumOrders() == 0) return false;
02824
02825 if (skip_first) ++this->index;
02826
02827 int conditional_depth = 0;
02828
02829 do {
02830
02831 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02832
02833 Order *order = GetVehicleOrder(this->v, this->index);
02834 assert(order != NULL);
02835
02836 switch (order->GetType()) {
02837 case OT_GOTO_DEPOT:
02838
02839 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02840 case OT_GOTO_STATION:
02841 case OT_GOTO_WAYPOINT:
02842 this->v->current_order = *order;
02843 UpdateOrderDest(this->v, order);
02844 return true;
02845 case OT_CONDITIONAL: {
02846 if (conditional_depth > this->v->GetNumOrders()) return false;
02847 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02848 if (next != INVALID_VEH_ORDER_ID) {
02849 conditional_depth++;
02850 this->index = next;
02851
02852 continue;
02853 }
02854 break;
02855 }
02856 default:
02857 break;
02858 }
02859
02860
02861 ++this->index;
02862 } while (this->index != this->v->cur_order_index);
02863
02864 return false;
02865 }
02866 };
02867
02868
02869 static Track ChooseTrainTrack(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02870 {
02871 Track best_track = INVALID_TRACK;
02872 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02873 bool changed_signal = false;
02874
02875 assert((tracks & ~TRACK_BIT_MASK) == 0);
02876
02877 if (got_reservation != NULL) *got_reservation = false;
02878
02879
02880 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02881
02882 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02883
02884
02885 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02886 Track track = FindFirstTrack(tracks);
02887
02888 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02889 do_track_reservation = true;
02890 changed_signal = true;
02891 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02892 } else if (!do_track_reservation) {
02893 return track;
02894 }
02895 best_track = track;
02896 }
02897
02898 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02899 DiagDirection dest_enterdir = enterdir;
02900 if (do_track_reservation) {
02901
02902
02903
02904 CheckIfTrainNeedsService(v);
02905 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02906
02907 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02908 if (res_dest.tile == INVALID_TILE) {
02909
02910 if (mark_stuck) MarkTrainAsStuck(v);
02911 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02912 return FindFirstTrack(tracks);
02913 }
02914 }
02915
02916
02917 VehicleOrderSaver orders(v);
02918
02919
02920
02921
02922
02923
02924
02925 if (v->current_order.IsType(OT_LEAVESTATION)) {
02926 orders.SwitchToNextOrder(false);
02927 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02928 v->current_order.IsType(OT_GOTO_STATION) ?
02929 IsRailwayStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02930 v->tile == v->dest_tile))) {
02931 orders.SwitchToNextOrder(true);
02932 }
02933
02934 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02935
02936 bool path_not_found = false;
02937 TileIndex new_tile = res_dest.tile;
02938
02939 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02940 if (new_tile == tile) best_track = next_track;
02941
02942
02943 if (path_not_found) {
02944
02945 if (!HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02946
02947 SetBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02948
02949 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02950 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02951 SetDParam(0, v->index);
02952 AddNewsItem(
02953 STR_TRAIN_IS_LOST,
02954 NS_ADVICE,
02955 v->index,
02956 0);
02957 }
02958 }
02959 } else {
02960
02961 if (HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02962
02963 ClrBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02964
02965 }
02966 }
02967 }
02968
02969
02970 if (!do_track_reservation) return best_track;
02971
02972
02973 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02974 if (mark_stuck) MarkTrainAsStuck(v);
02975 FreeTrainTrackReservation(v);
02976 return best_track;
02977 }
02978
02979
02980 if (res_dest.tile == INVALID_TILE) {
02981
02982 PBSTileInfo origin = FollowTrainReservation(v);
02983 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02984 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02985 best_track = FindFirstTrack(res);
02986 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
02987 if (got_reservation != NULL) *got_reservation = true;
02988 if (changed_signal) MarkTileDirtyByTile(tile);
02989 } else {
02990 FreeTrainTrackReservation(v);
02991 if (mark_stuck) MarkTrainAsStuck(v);
02992 }
02993 return best_track;
02994 }
02995
02996 if (got_reservation != NULL) *got_reservation = true;
02997
02998
02999 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
03000
03001 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
03002 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
03003 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
03004 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
03005 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
03006 }
03007
03008
03009 if (orders.SwitchToNextOrder(true)) {
03010 PBSTileInfo cur_dest;
03011 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
03012 if (cur_dest.tile != INVALID_TILE) {
03013 res_dest = cur_dest;
03014 if (res_dest.okay) continue;
03015
03016 FreeTrainTrackReservation(v);
03017 if (mark_stuck) MarkTrainAsStuck(v);
03018 if (got_reservation != NULL) *got_reservation = false;
03019 changed_signal = false;
03020 break;
03021 }
03022 }
03023
03024 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
03025 FreeTrainTrackReservation(v);
03026 if (mark_stuck) MarkTrainAsStuck(v);
03027 if (got_reservation != NULL) *got_reservation = false;
03028 changed_signal = false;
03029 }
03030 break;
03031 }
03032
03033 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
03034
03035 if (changed_signal) MarkTileDirtyByTile(tile);
03036
03037 return best_track;
03038 }
03039
03048 bool TryPathReserve(Vehicle *v, bool mark_as_stuck, bool first_tile_okay)
03049 {
03050 assert(v->type == VEH_TRAIN && IsFrontEngine(v));
03051
03052
03053
03054
03055 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03056 if (GetDepotWaypointReservation(v->tile)) {
03057 if (mark_as_stuck) MarkTrainAsStuck(v);
03058 return false;
03059 } else {
03060
03061 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
03062 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
03063 }
03064 }
03065
03066
03067 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
03068 TileIndex next_tile = TileAddByDiagDir(v->tile, dir);
03069 if (IsTileType(next_tile, MP_RAILWAY) && HasReservedTracks(next_tile, DiagdirReachesTracks(dir))) {
03070
03071 Trackdir td = FindFirstTrackdir(TrackBitsToTrackdirBits(GetReservedTrackbits(next_tile)) & DiagdirReachesTrackdirs(dir));
03072 if (HasSignalOnTrackdir(next_tile, td) && HasSignalOnTrackdir(next_tile, ReverseTrackdir(td)) &&
03073 !IsPbsSignal(GetSignalType(next_tile, TrackdirToTrack(td)))) {
03074
03075 if (mark_as_stuck) MarkTrainAsStuck(v);
03076 return false;
03077 }
03078 }
03079
03080 bool other_train = false;
03081 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
03082
03083
03084
03085
03086
03087 if (other_train && v->tile != origin.tile) {
03088 if (mark_as_stuck) MarkTrainAsStuck(v);
03089 return false;
03090 }
03091
03092 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
03093
03094 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03095 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03096 return true;
03097 }
03098
03099
03100 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03101 SetDepotWaypointReservation(v->tile, true);
03102 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
03103 }
03104
03105 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
03106 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
03107 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
03108
03109 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
03110
03111 bool res_made = false;
03112 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
03113
03114 if (!res_made) {
03115
03116 if (v->u.rail.track & TRACK_BIT_DEPOT) SetDepotWaypointReservation(v->tile, false);
03117 return false;
03118 }
03119
03120 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03121 v->load_unload_time_rem = 0;
03122 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03123 }
03124 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03125 return true;
03126 }
03127
03128
03129 static bool CheckReverseTrain(Vehicle *v)
03130 {
03131 if (_settings_game.difficulty.line_reverse_mode != 0 ||
03132 v->u.rail.track == TRACK_BIT_DEPOT || v->u.rail.track == TRACK_BIT_WORMHOLE ||
03133 !(v->direction & 1)) {
03134 return false;
03135 }
03136
03137 uint reverse_best = 0;
03138
03139 assert(v->u.rail.track);
03140
03141 switch (_settings_game.pf.pathfinder_for_trains) {
03142 case VPF_YAPF:
03143 reverse_best = YapfCheckReverseTrain(v);
03144 break;
03145
03146 case VPF_NPF: {
03147 NPFFindStationOrTileData fstd;
03148 NPFFoundTargetData ftd;
03149 Vehicle *last = GetLastVehicleInChain(v);
03150
03151 NPFFillWithOrderData(&fstd, v);
03152
03153 Trackdir trackdir = GetVehicleTrackdir(v);
03154 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
03155 assert(trackdir != INVALID_TRACKDIR);
03156 assert(trackdir_rev != INVALID_TRACKDIR);
03157
03158 ftd = NPFRouteToStationOrTileTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
03159 if (ftd.best_bird_dist != 0) {
03160
03161 reverse_best = false;
03162 } else {
03163 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) {
03164 reverse_best = true;
03165 } else {
03166 reverse_best = false;
03167 }
03168 }
03169 } break;
03170
03171 default:
03172 case VPF_NTP: {
03173 TrainTrackFollowerData fd;
03174 FillWithStationData(&fd, v);
03175
03176 int i = _search_directions[FindFirstTrack(v->u.rail.track)][DirToDiagDir(v->direction)];
03177
03178 int best_track = -1;
03179 uint reverse = 0;
03180 uint best_bird_dist = 0;
03181 uint best_track_dist = 0;
03182
03183 for (;;) {
03184 fd.best_bird_dist = UINT_MAX;
03185 fd.best_track_dist = UINT_MAX;
03186
03187 NewTrainPathfind(v->tile, v->dest_tile, v->u.rail.compatible_railtypes, (DiagDirection)(reverse ^ i), (NTPEnumProc*)NtpCallbFindStation, &fd);
03188
03189 if (best_track != -1) {
03190 if (best_bird_dist != 0) {
03191 if (fd.best_bird_dist != 0) {
03192
03193 if (fd.best_bird_dist > best_bird_dist) goto bad;
03194 if (fd.best_bird_dist < best_bird_dist) goto good;
03195 } else {
03196
03197 goto good;
03198 }
03199 } else {
03200 if (fd.best_bird_dist != 0) {
03201
03202 goto bad;
03203 } else {
03204
03205 if (fd.best_track_dist > best_track_dist) goto bad;
03206 if (fd.best_track_dist < best_track_dist) goto good;
03207 }
03208 }
03209
03210
03211
03212 int r = GB(Random(), 0, 8);
03213 if (_pick_track_table[i] == (v->direction & 3)) r += 80;
03214 if (_pick_track_table[best_track] == (v->direction & 3)) r -= 80;
03215 if (r <= 127) goto bad;
03216 }
03217 good:;
03218 best_track = i;
03219 best_bird_dist = fd.best_bird_dist;
03220 best_track_dist = fd.best_track_dist;
03221 reverse_best = reverse;
03222 bad:;
03223 if (reverse != 0) break;
03224 reverse = 2;
03225 }
03226 } break;
03227 }
03228
03229 return reverse_best != 0;
03230 }
03231
03232 TileIndex Train::GetOrderStationLocation(StationID station)
03233 {
03234 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
03235
03236 const Station *st = GetStation(station);
03237 if (!(st->facilities & FACIL_TRAIN)) {
03238
03239 this->cur_order_index++;
03240 return 0;
03241 }
03242
03243 return st->xy;
03244 }
03245
03246 void Train::MarkDirty()
03247 {
03248 Vehicle *v = this;
03249 do {
03250 v->UpdateViewport(false, false);
03251 } while ((v = v->Next()) != NULL);
03252
03253
03254 TrainCargoChanged(this);
03255 UpdateTrainAcceleration(this);
03256 }
03257
03268 static int UpdateTrainSpeed(Vehicle *v)
03269 {
03270 uint accel;
03271
03272 if (v->vehstatus & VS_STOPPED || HasBit(v->u.rail.flags, VRF_REVERSING) || HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03273 switch (_settings_game.vehicle.train_acceleration_model) {
03274 default: NOT_REACHED();
03275 case TAM_ORIGINAL: accel = v->acceleration * -4; break;
03276 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_BRAKE); break;
03277 }
03278 } else {
03279 switch (_settings_game.vehicle.train_acceleration_model) {
03280 default: NOT_REACHED();
03281 case TAM_ORIGINAL: accel = v->acceleration * 2; break;
03282 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_ACCEL); break;
03283 }
03284 }
03285
03286 uint spd = v->subspeed + accel;
03287 v->subspeed = (byte)spd;
03288 {
03289 int tempmax = v->max_speed;
03290 if (v->cur_speed > v->max_speed)
03291 tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
03292 v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
03293 }
03294
03295
03296
03297
03298
03299
03300
03301
03302
03303
03304
03305
03306 int scaled_spd = spd * 3 >> 2;
03307
03308 scaled_spd += v->progress;
03309 v->progress = 0;
03310 return scaled_spd;
03311 }
03312
03313 static void TrainEnterStation(Vehicle *v, StationID station)
03314 {
03315 v->last_station_visited = station;
03316
03317
03318 Station *st = GetStation(station);
03319 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
03320 st->had_vehicle_of_type |= HVOT_TRAIN;
03321 SetDParam(0, st->index);
03322 AddNewsItem(
03323 STR_8801_CITIZENS_CELEBRATE_FIRST,
03324 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
03325 v->index,
03326 st->index
03327 );
03328 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
03329 }
03330
03331 v->BeginLoading();
03332
03333 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03334 }
03335
03336 static byte AfterSetTrainPos(Vehicle *v, bool new_tile)
03337 {
03338 byte old_z = v->z_pos;
03339 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03340
03341 if (new_tile) {
03342 ClrBit(v->u.rail.flags, VRF_GOINGUP);
03343 ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
03344
03345 if (v->u.rail.track == TRACK_BIT_X || v->u.rail.track == TRACK_BIT_Y) {
03346
03347
03348
03349
03350
03351 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03352 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03353
03354 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03355
03356
03357
03358 if (middle_z != v->z_pos && !IsTunnelTile(TileVirtXY(v->x_pos, v->y_pos))) {
03359 SetBit(v->u.rail.flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03360 }
03361 }
03362 }
03363
03364 VehicleMove(v, true);
03365 return old_z;
03366 }
03367
03368 static const Direction _new_vehicle_direction_table[11] = {
03369 DIR_N , DIR_NW, DIR_W , INVALID_DIR,
03370 DIR_NE, DIR_N , DIR_SW, INVALID_DIR,
03371 DIR_E , DIR_SE, DIR_S
03372 };
03373
03374 static inline Direction GetNewVehicleDirectionByTile(TileIndex new_tile, TileIndex old_tile)
03375 {
03376 uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
03377 TileX(new_tile) - TileX(old_tile) + 1;
03378 assert(offs < 11);
03379 return _new_vehicle_direction_table[offs];
03380 }
03381
03382 static inline int GetDirectionToVehicle(const Vehicle *v, int x, int y)
03383 {
03384 byte offs;
03385
03386 x -= v->x_pos;
03387 if (x >= 0) {
03388 offs = (x > 2) ? 0 : 1;
03389 } else {
03390 offs = (x < -2) ? 2 : 1;
03391 }
03392
03393 y -= v->y_pos;
03394 if (y >= 0) {
03395 offs += ((y > 2) ? 0 : 1) * 4;
03396 } else {
03397 offs += ((y < -2) ? 2 : 1) * 4;
03398 }
03399
03400 assert(offs < 11);
03401 return _new_vehicle_direction_table[offs];
03402 }
03403
03404
03405 static inline bool CheckCompatibleRail(const Vehicle *v, TileIndex tile)
03406 {
03407 return
03408 IsTileOwner(tile, v->owner) && (
03409 !IsFrontEngine(v) ||
03410 HasBit(v->u.rail.compatible_railtypes, GetRailType(tile))
03411 );
03412 }
03413
03414 struct RailtypeSlowdownParams {
03415 byte small_turn, large_turn;
03416 byte z_up;
03417 byte z_down;
03418 };
03419
03420 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03421
03422 {256 / 4, 256 / 2, 256 / 4, 2},
03423 {256 / 4, 256 / 2, 256 / 4, 2},
03424 {256 / 4, 256 / 2, 256 / 4, 2},
03425 {0, 256 / 2, 256 / 4, 2},
03426 };
03427
03429 static inline void AffectSpeedByDirChange(Vehicle *v, Direction new_dir)
03430 {
03431 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03432
03433 DirDiff diff = DirDifference(v->direction, new_dir);
03434 if (diff == DIRDIFF_SAME) return;
03435
03436 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03437 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03438 }
03439
03441 static inline void AffectSpeedByZChange(Vehicle *v, byte old_z)
03442 {
03443 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03444
03445 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03446
03447 if (old_z < v->z_pos) {
03448 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03449 } else {
03450 uint16 spd = v->cur_speed + rsp->z_down;
03451 if (spd <= v->max_speed) v->cur_speed = spd;
03452 }
03453 }
03454
03455 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03456 {
03457 if (IsTileType(tile, MP_RAILWAY) &&
03458 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03459 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03460 Trackdir trackdir = FindFirstTrackdir(tracks);
03461 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03462
03463 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03464 }
03465 }
03466 return false;
03467 }
03468
03469
03470 static void SetVehicleCrashed(Vehicle *v)
03471 {
03472 if (v->u.rail.crash_anim_pos != 0) return;
03473
03474 if (IsFrontEngine(v)) {
03475
03476
03477 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) FreeTrainTrackReservation(v);
03478 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
03479 ClearPathReservation(u, u->tile, GetVehicleTrackdir(u));
03480 if (IsTileType(u->tile, MP_TUNNELBRIDGE)) {
03481
03482
03483 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(u->tile), false);
03484 }
03485 }
03486 }
03487
03488
03489 TileIndex crossing = TrainApproachingCrossingTile(v);
03490
03491 v->u.rail.crash_anim_pos++;
03492
03493 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03494 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
03495
03496 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03497 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
03498 }
03499
03500 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
03501
03502 for (; v != NULL; v = v->Next()) {
03503 v->vehstatus |= VS_CRASHED;
03504 MarkSingleVehicleDirty(v);
03505 }
03506
03507
03508 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03509 }
03510
03511 static uint CountPassengersInTrain(const Vehicle *v)
03512 {
03513 uint num = 0;
03514
03515 for (; v != NULL; v = v->Next()) {
03516 if (IsCargoInClass(v->cargo_type, CC_PASSENGERS)) num += v->cargo.Count();
03517 }
03518
03519 return num;
03520 }
03521
03528 static uint TrainCrashed(Vehicle *v)
03529 {
03530
03531 if (v->vehstatus & VS_CRASHED) return 0;
03532
03533
03534 uint num = 2 + CountPassengersInTrain(v);
03535
03536 SetVehicleCrashed(v);
03537 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03538
03539 return num;
03540 }
03541
03542 struct TrainCollideChecker {
03543 Vehicle *v;
03544 uint num;
03545 };
03546
03547 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03548 {
03549 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03550
03551 if (v->type != VEH_TRAIN) return NULL;
03552
03553
03554 Vehicle *coll = v->First();
03555
03556
03557 if (coll != tcc->v && v->u.rail.track != TRACK_BIT_DEPOT && abs(v->z_pos - tcc->v->z_pos) < 6) {
03558 int x_diff = v->x_pos - tcc->v->x_pos;
03559 int y_diff = v->y_pos - tcc->v->y_pos;
03560
03561
03562 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03563
03564
03565 tcc->num += TrainCrashed(tcc->v);
03566 tcc->num += TrainCrashed(coll);
03567
03568
03569
03570 const Vehicle *u;
03571 FOR_ALL_VEHICLES(u) {
03572 if (u->type == VEH_TRAIN && HASBITS(u->vehstatus, VS_CRASHED) && (u->u.rail.track & TRACK_BIT_DEPOT) == TRACK_BIT_NONE) {
03573 TrackBits trackbits = u->u.rail.track;
03574 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03575
03576 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(u->tile));
03577 }
03578 TryReserveRailTrack(u->tile, TrackBitsToTrack(trackbits));
03579 }
03580 }
03581 }
03582
03583 return NULL;
03584 }
03585
03592 static bool CheckTrainCollision(Vehicle *v)
03593 {
03594
03595 if (v->u.rail.track == TRACK_BIT_DEPOT) return false;
03596
03597 assert(v->u.rail.track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03598
03599 TrainCollideChecker tcc;
03600 tcc.v = v;
03601 tcc.num = 0;
03602
03603
03604 if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
03605 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03606 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03607 } else {
03608 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03609 }
03610
03611
03612 if (tcc.num == 0) return false;
03613
03614 SetDParam(0, tcc.num);
03615 AddNewsItem(STR_8868_TRAIN_CRASH_DIE_IN_FIREBALL,
03616 NS_ACCIDENT_VEHICLE,
03617 v->index,
03618 0
03619 );
03620
03621 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03622 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03623 return true;
03624 }
03625
03626 static Vehicle *CheckVehicleAtSignal(Vehicle *v, void *data)
03627 {
03628 DiagDirection exitdir = *(DiagDirection *)data;
03629
03630
03631 if (v->type == VEH_TRAIN && IsFrontEngine(v) && (v->u.rail.track & TRACK_BIT_MASK) != 0 && !(v->vehstatus & VS_CRASHED)) {
03632 if (v->cur_speed <= 5 && TrainExitDir(v->direction, v->u.rail.track) == exitdir) return v;
03633 }
03634
03635 return NULL;
03636 }
03637
03638 static void TrainController(Vehicle *v, Vehicle *nomove)
03639 {
03640 Vehicle *prev;
03641
03642
03643 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03644 DiagDirection enterdir = DIAGDIR_BEGIN;
03645 bool update_signals_crossing = false;
03646
03647 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03648 if (v->u.rail.track != TRACK_BIT_WORMHOLE) {
03649
03650 if (gp.old_tile == gp.new_tile) {
03651
03652 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03653
03654 gp.x = v->x_pos;
03655 gp.y = v->y_pos;
03656 } else {
03657
03658
03659
03660 if (IsFrontEngine(v) && !TrainCheckIfLineEnds(v)) return;
03661
03662 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03663 if (HasBit(r, VETS_CANNOT_ENTER)) {
03664 goto invalid_rail;
03665 }
03666 if (HasBit(r, VETS_ENTERED_STATION)) {
03667
03668 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03669 }
03670 }
03671 } else {
03672
03673
03674
03675 Direction dir = GetNewVehicleDirectionByTile(gp.new_tile, gp.old_tile);
03676 enterdir = DirToDiagDir(dir);
03677 assert(IsValidDiagDirection(enterdir));
03678
03679
03680
03681 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03682 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03683
03684 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03685 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03686
03687 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03688 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg && prev == NULL) {
03689
03690
03691 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
03692 }
03693
03694 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03695
03696
03697
03698 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03699
03700 TrackBits chosen_track;
03701 if (prev == NULL) {
03702
03703
03704 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03705 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03706
03707
03708 if (red_signals & chosen_track && v->u.rail.force_proceed == 0) {
03709
03710 Trackdir i = FindFirstTrackdir(trackdirbits);
03711
03712
03713 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) return;
03714
03715 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03716 v->cur_speed = 0;
03717 v->subspeed = 0;
03718 v->progress = 255 - 100;
03719 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_oneway_signal * 20) return;
03720 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03721 v->cur_speed = 0;
03722 v->subspeed = 0;
03723 v->progress = 255 - 10;
03724 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_twoway_signal * 73) {
03725 DiagDirection exitdir = TrackdirToExitdir(i);
03726 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03727
03728 exitdir = ReverseDiagDir(exitdir);
03729
03730
03731 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckVehicleAtSignal)) return;
03732 }
03733 }
03734
03735
03736
03737 if (_settings_game.pf.wait_for_pbs_path == 255 && UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03738 v->load_unload_time_rem = 0;
03739 return;
03740 }
03741 goto reverse_train_direction;
03742 } else {
03743 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03744 }
03745 } else {
03746 static const TrackBits _matching_tracks[8] = {
03747 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03748 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y,
03749 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03750 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y
03751 };
03752
03753
03754 chosen_track = (TrackBits)(byte)(_matching_tracks[GetDirectionToVehicle(prev, gp.x, gp.y)] & bits);
03755 }
03756
03757
03758 assert(
03759 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03760 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03761 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03762
03763
03764 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03765 gp.x = (gp.x & ~0xF) | b[0];
03766 gp.y = (gp.y & ~0xF) | b[1];
03767 Direction chosen_dir = (Direction)b[2];
03768
03769
03770 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03771 if (HasBit(r, VETS_CANNOT_ENTER)) {
03772 goto invalid_rail;
03773 }
03774
03775 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03776 Track track = FindFirstTrack(chosen_track);
03777 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03778 if (IsFrontEngine(v) && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03779 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03780 MarkTileDirtyByTile(gp.new_tile);
03781 }
03782
03783
03784 if (v->Next() == NULL) ClearPathReservation(v, v->tile, GetVehicleTrackdir(v));
03785
03786 v->tile = gp.new_tile;
03787
03788 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03789 TrainPowerChanged(v->First());
03790 }
03791
03792 v->u.rail.track = chosen_track;
03793 assert(v->u.rail.track);
03794 }
03795
03796
03797
03798 update_signals_crossing = true;
03799
03800 if (prev == NULL) AffectSpeedByDirChange(v, chosen_dir);
03801
03802 v->direction = chosen_dir;
03803
03804 if (IsFrontEngine(v)) {
03805 v->load_unload_time_rem = 0;
03806
03807
03808 TileIndex crossing = TrainApproachingCrossingTile(v);
03809 if (crossing != INVALID_TILE && GetCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03810
03811
03812 CheckNextTrainTile(v);
03813 }
03814 }
03815 } else {
03816
03817
03818
03819 if (!(v->vehstatus & VS_HIDDEN)) {
03820 v->cur_speed =
03821 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03822 }
03823
03824 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03825
03826 if (IsFrontEngine(v)) {
03827 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03828 CheckNextTrainTile(v);
03829 }
03830 } else {
03831 v->x_pos = gp.x;
03832 v->y_pos = gp.y;
03833 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03834 continue;
03835 }
03836 }
03837
03838
03839 v->UpdateDeltaXY(v->direction);
03840
03841 v->x_pos = gp.x;
03842 v->y_pos = gp.y;
03843
03844
03845 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03846
03847 if (prev == NULL) {
03848
03849 AffectSpeedByZChange(v, old_z);
03850 }
03851
03852 if (update_signals_crossing) {
03853 if (IsFrontEngine(v)) {
03854 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03855
03856
03857
03858
03859
03860
03861
03862
03863 if ((!HasReservedTracks(gp.new_tile, v->u.rail.track) &&
03864 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->u.rail.track))) ||
03865 !TryPathReserve(v)) {
03866 MarkTrainAsStuck(v);
03867 }
03868 }
03869 }
03870
03871
03872
03873 if (v->Next() == NULL) {
03874 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03875 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03876 }
03877 }
03878
03879
03880 if (IsFrontEngine(v) && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03881 }
03882 return;
03883
03884 invalid_rail:
03885
03886 if (prev != NULL) error("Disconnecting train");
03887
03888 reverse_train_direction:
03889 v->load_unload_time_rem = 0;
03890 v->cur_speed = 0;
03891 v->subspeed = 0;
03892 ReverseTrainDirection(v);
03893 }
03894
03900 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03901 {
03902 TrackBits *trackbits = (TrackBits *)data;
03903
03904 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03905 if ((v->u.rail.track & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03906
03907 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03908 } else {
03909 *trackbits |= v->u.rail.track;
03910 }
03911 }
03912
03913 return NULL;
03914 }
03915
03923 static void DeleteLastWagon(Vehicle *v)
03924 {
03925 Vehicle *first = v->First();
03926
03927
03928
03929
03930 Vehicle *u = v;
03931 for (; v->Next() != NULL; v = v->Next()) u = v;
03932 u->SetNext(NULL);
03933
03934 if (first != v) {
03935
03936 TrainConsistChanged(first, false);
03937
03938
03939 if (first->u.rail.track == TRACK_BIT_DEPOT) {
03940 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
03941 }
03942 }
03943
03944
03945 TrackBits trackbits = v->u.rail.track;
03946 TileIndex tile = v->tile;
03947 Owner owner = v->owner;
03948
03949 delete v;
03950 v = NULL;
03951
03952 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03953
03954 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03955 }
03956
03957 Track track = TrackBitsToTrack(trackbits);
03958 if (HasReservedTracks(tile, trackbits)) {
03959 UnreserveRailTrack(tile, track);
03960
03961
03962 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03963 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03964
03965
03966 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03967 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03968 if (HasBit(remaining_trackbits, t)) {
03969 TryReserveRailTrack(tile, t);
03970 }
03971 }
03972 }
03973
03974
03975 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03976
03977
03978 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03979 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03980 } else {
03981 SetSignalsOnBothDir(tile, track, owner);
03982 }
03983 }
03984
03985 static void ChangeTrainDirRandomly(Vehicle *v)
03986 {
03987 static const DirDiff delta[] = {
03988 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03989 };
03990
03991 do {
03992
03993 if (!(v->vehstatus & VS_HIDDEN)) {
03994 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03995 v->UpdateDeltaXY(v->direction);
03996 v->cur_image = v->GetImage(v->direction);
03997
03998
03999
04000 if (v->u.rail.track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
04001 }
04002 } while ((v = v->Next()) != NULL);
04003 }
04004
04005 static void HandleCrashedTrain(Vehicle *v)
04006 {
04007 int state = ++v->u.rail.crash_anim_pos;
04008
04009 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
04010 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
04011 }
04012
04013 uint32 r;
04014 if (state <= 200 && Chance16R(1, 7, r)) {
04015 int index = (r * 10 >> 16);
04016
04017 Vehicle *u = v;
04018 do {
04019 if (--index < 0) {
04020 r = Random();
04021
04022 CreateEffectVehicleRel(u,
04023 GB(r, 8, 3) + 2,
04024 GB(r, 16, 3) + 2,
04025 GB(r, 0, 3) + 5,
04026 EV_EXPLOSION_SMALL);
04027 break;
04028 }
04029 } while ((u = u->Next()) != NULL);
04030 }
04031
04032 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
04033
04034 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
04035 DeleteLastWagon(v);
04036 InvalidateWindow(WC_REPLACE_VEHICLE, (v->group_id << 16) | VEH_TRAIN);
04037 }
04038 }
04039
04040 static void HandleBrokenTrain(Vehicle *v)
04041 {
04042 if (v->breakdown_ctr != 1) {
04043 v->breakdown_ctr = 1;
04044 v->cur_speed = 0;
04045
04046 if (v->breakdowns_since_last_service != 255)
04047 v->breakdowns_since_last_service++;
04048
04049 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04050 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
04051
04052 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
04053 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
04054 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
04055 }
04056
04057 if (!(v->vehstatus & VS_HIDDEN)) {
04058 Vehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
04059 if (u != NULL) u->u.effect.animation_state = v->breakdown_delay * 2;
04060 }
04061 }
04062
04063 if (!(v->tick_counter & 3)) {
04064 if (!--v->breakdown_delay) {
04065 v->breakdown_ctr = 0;
04066 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04067 }
04068 }
04069 }
04070
04072 static const uint16 _breakdown_speeds[16] = {
04073 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
04074 };
04075
04076
04084 static bool TrainApproachingLineEnd(Vehicle *v, bool signal)
04085 {
04086
04087 uint x = v->x_pos & 0xF;
04088 uint y = v->y_pos & 0xF;
04089
04090
04091
04092 switch (v->direction) {
04093 case DIR_N : x = ~x + ~y + 25; break;
04094 case DIR_NW: x = y;
04095 case DIR_NE: x = ~x + 16; break;
04096 case DIR_E : x = ~x + y + 9; break;
04097 case DIR_SE: x = y; break;
04098 case DIR_S : x = x + y - 7; break;
04099 case DIR_W : x = ~y + x + 9; break;
04100 default: break;
04101 }
04102
04103
04104 if (!signal && x + (v->u.rail.cached_veh_length + 1) / 2 >= TILE_SIZE) {
04105
04106 v->cur_speed = 0;
04107 ReverseTrainDirection(v);
04108 return false;
04109 }
04110
04111
04112 v->vehstatus |= VS_TRAIN_SLOWING;
04113 uint16 break_speed = _breakdown_speeds[x & 0xF];
04114 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04115
04116 return true;
04117 }
04118
04119
04125 static bool TrainCanLeaveTile(const Vehicle *v)
04126 {
04127
04128 if (v->u.rail.track == TRACK_BIT_WORMHOLE || v->u.rail.track == TRACK_BIT_DEPOT) return false;
04129
04130 TileIndex tile = v->tile;
04131
04132
04133 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
04134 DiagDirection dir = GetTunnelBridgeDirection(tile);
04135 if (DiagDirToDir(dir) == v->direction) return false;
04136 }
04137
04138
04139 if (IsRailDepotTile(tile)) {
04140 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
04141 if (DiagDirToDir(dir) == v->direction) return false;
04142 }
04143
04144 return true;
04145 }
04146
04147
04155 static TileIndex TrainApproachingCrossingTile(const Vehicle *v)
04156 {
04157 assert(IsFrontEngine(v));
04158 assert(!(v->vehstatus & VS_CRASHED));
04159
04160 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
04161
04162 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04163 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04164
04165
04166 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
04167 !CheckCompatibleRail(v, tile)) {
04168 return INVALID_TILE;
04169 }
04170
04171 return tile;
04172 }
04173
04174
04181 static bool TrainCheckIfLineEnds(Vehicle *v)
04182 {
04183
04184
04185 int t = v->breakdown_ctr;
04186 if (t > 1) {
04187 v->vehstatus |= VS_TRAIN_SLOWING;
04188
04189 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
04190 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04191 } else {
04192 v->vehstatus &= ~VS_TRAIN_SLOWING;
04193 }
04194
04195 if (!TrainCanLeaveTile(v)) return true;
04196
04197
04198 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04199
04200 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04201
04202
04203 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
04204 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
04205
04206 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
04207 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
04208
04209
04210
04211
04212 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
04213 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
04214 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
04215 }
04216
04217
04218 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
04219 return TrainApproachingLineEnd(v, false);
04220 }
04221
04222
04223 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
04224
04225
04226 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
04227
04228 return true;
04229 }
04230
04231
04232 static void TrainLocoHandler(Vehicle *v, bool mode)
04233 {
04234
04235 if (v->vehstatus & VS_CRASHED) {
04236 if (!mode) HandleCrashedTrain(v);
04237 return;
04238 }
04239
04240 if (v->u.rail.force_proceed != 0) {
04241 v->u.rail.force_proceed--;
04242 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04243 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04244 }
04245
04246
04247 if (v->breakdown_ctr != 0) {
04248 if (v->breakdown_ctr <= 2) {
04249 HandleBrokenTrain(v);
04250 return;
04251 }
04252 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
04253 }
04254
04255 if (HasBit(v->u.rail.flags, VRF_REVERSING) && v->cur_speed == 0) {
04256 ReverseTrainDirection(v);
04257 }
04258
04259
04260 if (v->vehstatus & VS_STOPPED && v->cur_speed == 0) return;
04261
04262 bool valid_order = v->current_order.IsValid() && v->current_order.GetType() != OT_CONDITIONAL;
04263 if (ProcessOrders(v) && CheckReverseTrain(v)) {
04264 v->load_unload_time_rem = 0;
04265 v->cur_speed = 0;
04266 v->subspeed = 0;
04267 ReverseTrainDirection(v);
04268 return;
04269 }
04270
04271 v->HandleLoading(mode);
04272
04273 if (v->current_order.IsType(OT_LOADING)) return;
04274
04275 if (CheckTrainStayInDepot(v)) return;
04276
04277 if (!mode) HandleLocomotiveSmokeCloud(v);
04278
04279
04280 if (!valid_order && v->current_order.IsValid()) {
04281 CheckNextTrainTile(v);
04282 }
04283
04284
04285 if (!mode && HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
04286 ++v->load_unload_time_rem;
04287
04288
04289 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;
04290
04291 if (!turn_around && v->load_unload_time_rem % _settings_game.pf.path_backoff_interval != 0 && v->u.rail.force_proceed == 0) return;
04292 if (!TryPathReserve(v)) {
04293
04294 if (turn_around) ReverseTrainDirection(v);
04295
04296 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK) && v->load_unload_time_rem > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
04297
04298 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
04299 SetDParam(0, v->index);
04300 AddNewsItem(
04301 STR_TRAIN_IS_STUCK,
04302 NS_ADVICE,
04303 v->index,
04304 0);
04305 }
04306 v->load_unload_time_rem = 0;
04307 }
04308
04309 if (v->u.rail.force_proceed == 0) return;
04310 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04311 v->load_unload_time_rem = 0;
04312 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04313 }
04314 }
04315
04316 if (v->current_order.IsType(OT_LEAVESTATION)) {
04317 v->current_order.Free();
04318 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04319 return;
04320 }
04321
04322 int j = UpdateTrainSpeed(v);
04323
04324
04325 if (v->cur_speed == 0 && v->u.rail.last_speed == 0 && v->vehstatus & VS_STOPPED) {
04326 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04327 }
04328
04329 int adv_spd = (v->direction & 1) ? 192 : 256;
04330 if (j < adv_spd) {
04331
04332 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04333 } else {
04334 TrainCheckIfLineEnds(v);
04335
04336 for (;;) {
04337 j -= adv_spd;
04338 TrainController(v, NULL);
04339
04340 if (CheckTrainCollision(v)) break;
04341
04342 adv_spd = (v->direction & 1) ? 192 : 256;
04343
04344
04345 if (j < adv_spd || v->cur_speed == 0) break;
04346
04347 OrderType order_type = v->current_order.GetType();
04348
04349 if ((order_type == OT_GOTO_WAYPOINT &&
04350 v->dest_tile == v->tile) ||
04351 (order_type == OT_GOTO_STATION &&
04352 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
04353 IsTileType(v->tile, MP_STATION) &&
04354 v->current_order.GetDestination() == GetStationIndex(v->tile))) {
04355 ProcessOrders(v);
04356 }
04357 }
04358 SetLastSpeed(v, v->cur_speed);
04359 }
04360
04361 for (Vehicle *u = v; u != NULL; u = u->Next()) {
04362 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04363
04364 u->UpdateViewport(false, false);
04365 }
04366
04367 if (v->progress == 0) v->progress = j;
04368 }
04369
04370
04371
04372 Money Train::GetRunningCost() const
04373 {
04374 Money cost = 0;
04375 const Vehicle *v = this;
04376
04377 do {
04378 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
04379
04380 byte cost_factor = GetVehicleProperty(v, 0x0D, rvi->running_cost);
04381 if (cost_factor == 0) continue;
04382
04383
04384 if (IsMultiheaded(v)) cost_factor /= 2;
04385
04386 cost += cost_factor * GetPriceByIndex(rvi->running_cost_class);
04387 } while ((v = GetNextVehicle(v)) != NULL);
04388
04389 return cost;
04390 }
04391
04392
04393 void Train::Tick()
04394 {
04395 if (_age_cargo_skip_counter == 0) this->cargo.AgeCargo();
04396
04397 this->tick_counter++;
04398
04399 if (IsFrontEngine(this)) {
04400 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04401 this->current_order_time++;
04402
04403 TrainLocoHandler(this, false);
04404
04405
04406 if (this->type == VEH_TRAIN && IsFrontEngine(this))
04407 TrainLocoHandler(this, true);
04408 } else if (IsFreeWagon(this) && HASBITS(this->vehstatus, VS_CRASHED)) {
04409
04410 if (++this->u.rail.crash_anim_pos >= 4400) delete this;
04411 }
04412 }
04413
04414 static void CheckIfTrainNeedsService(Vehicle *v)
04415 {
04416 static const uint MAX_ACCEPTABLE_DEPOT_DIST = 16;
04417
04418 if (_settings_game.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04419 if (v->IsInDepot()) {
04420 VehicleServiceInDepot(v);
04421 return;
04422 }
04423
04424 TrainFindDepotData tfdd = FindClosestTrainDepot(v, MAX_ACCEPTABLE_DEPOT_DIST);
04425
04426 if (tfdd.best_length == UINT_MAX || tfdd.best_length > MAX_ACCEPTABLE_DEPOT_DIST) {
04427 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04428
04429
04430
04431 v->current_order.MakeDummy();
04432 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04433 }
04434 return;
04435 }
04436
04437 const Depot *depot = GetDepotByTile(tfdd.tile);
04438
04439 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04440 v->current_order.GetDestination() != depot->index &&
04441 !Chance16(3, 16)) {
04442 return;
04443 }
04444
04445 v->current_order.MakeGoToDepot(depot->index, ODTFB_SERVICE);
04446 v->dest_tile = tfdd.tile;
04447 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04448 }
04449
04450 void Train::OnNewDay()
04451 {
04452 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04453
04454 if (IsFrontEngine(this)) {
04455 CheckVehicleBreakdown(this);
04456 AgeVehicle(this);
04457
04458 CheckIfTrainNeedsService(this);
04459
04460 CheckOrders(this);
04461
04462
04463 if (this->current_order.IsType(OT_GOTO_STATION)) {
04464 TileIndex tile = GetStation(this->current_order.GetDestination())->train_tile;
04465 if (tile != INVALID_TILE) this->dest_tile = tile;
04466 }
04467
04468 if (this->running_ticks != 0) {
04469
04470 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04471
04472 this->profit_this_year -= cost.GetCost();
04473 this->running_ticks = 0;
04474
04475 SubtractMoneyFromCompanyFract(this->owner, cost);
04476
04477 InvalidateWindow(WC_VEHICLE_DETAILS, this->index);
04478 InvalidateWindowClasses(WC_TRAINS_LIST);
04479 }
04480 } else if (IsTrainEngine(this)) {
04481
04482 AgeVehicle(this);
04483 }
04484 }
04485
04486 void InitializeTrains()
04487 {
04488 _age_cargo_skip_counter = 1;
04489 }