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 void UpdateVarsAfterSwap(Vehicle *v)
01537 {
01538 v->UpdateDeltaXY(v->direction);
01539 v->cur_image = v->GetImage(v->direction);
01540 VehicleMove(v, true);
01541 }
01542
01543 static inline void SetLastSpeed(Vehicle *v, int spd)
01544 {
01545 int old = v->u.rail.last_speed;
01546 if (spd != old) {
01547 v->u.rail.last_speed = spd;
01548 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01549 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01550 }
01551 }
01552 }
01553
01555 static void MarkTrainAsStuck(Vehicle *v)
01556 {
01557 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01558
01559 SetBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01560 v->load_unload_time_rem = 0;
01561
01562
01563 v->cur_speed = 0;
01564 v->subspeed = 0;
01565 SetLastSpeed(v, 0);
01566
01567 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01568 }
01569 }
01570
01571 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01572 {
01573 uint16 flag1 = *swap_flag1;
01574 uint16 flag2 = *swap_flag2;
01575
01576
01577 ClrBit(*swap_flag1, VRF_GOINGUP);
01578 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01579 ClrBit(*swap_flag2, VRF_GOINGUP);
01580 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01581
01582
01583 if (HasBit(flag1, VRF_GOINGUP)) {
01584 SetBit(*swap_flag2, VRF_GOINGDOWN);
01585 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01586 SetBit(*swap_flag2, VRF_GOINGUP);
01587 }
01588 if (HasBit(flag2, VRF_GOINGUP)) {
01589 SetBit(*swap_flag1, VRF_GOINGDOWN);
01590 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01591 SetBit(*swap_flag1, VRF_GOINGUP);
01592 }
01593 }
01594
01595 static void ReverseTrainSwapVeh(Vehicle *v, int l, int r)
01596 {
01597 Vehicle *a, *b;
01598
01599
01600 for (a = v; l != 0; l--) a = a->Next();
01601 for (b = v; r != 0; r--) b = b->Next();
01602
01603 if (a != b) {
01604
01605 {
01606 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01607 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01608 a->vehstatus = tmp;
01609 }
01610
01611 Swap(a->u.rail.track, b->u.rail.track);
01612 Swap(a->direction, b->direction);
01613
01614
01615 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01616 if (b->u.rail.track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01617
01618 Swap(a->x_pos, b->x_pos);
01619 Swap(a->y_pos, b->y_pos);
01620 Swap(a->tile, b->tile);
01621 Swap(a->z_pos, b->z_pos);
01622
01623 SwapTrainFlags(&a->u.rail.flags, &b->u.rail.flags);
01624
01625
01626 UpdateVarsAfterSwap(a);
01627 UpdateVarsAfterSwap(b);
01628
01629
01630 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01631 if (b->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01632 } else {
01633 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01634 UpdateVarsAfterSwap(a);
01635
01636 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01637 }
01638
01639
01640 TrainPowerChanged(v);
01641 }
01642
01643
01649 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01650 {
01651 return (v->type == VEH_TRAIN) ? v : NULL;
01652 }
01653
01654
01661 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01662 {
01663
01664 if (v->type != VEH_TRAIN || !IsFrontEngine(v) || v->vehstatus & VS_CRASHED) return NULL;
01665
01666 TileIndex tile = *(TileIndex*)data;
01667
01668 if (TrainApproachingCrossingTile(v) != tile) return NULL;
01669
01670 return v;
01671 }
01672
01673
01680 static bool TrainApproachingCrossing(TileIndex tile)
01681 {
01682 assert(IsLevelCrossingTile(tile));
01683
01684 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01685 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01686
01687 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01688
01689 dir = ReverseDiagDir(dir);
01690 tile_from = tile + TileOffsByDiagDir(dir);
01691
01692 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01693 }
01694
01695
01702 void UpdateLevelCrossing(TileIndex tile, bool sound)
01703 {
01704 assert(IsLevelCrossingTile(tile));
01705
01706
01707 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || GetCrossingReservation(tile);
01708
01709 if (new_state != IsCrossingBarred(tile)) {
01710 if (new_state && sound) {
01711 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01712 }
01713 SetCrossingBarred(tile, new_state);
01714 MarkTileDirtyByTile(tile);
01715 }
01716 }
01717
01718
01724 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01725 {
01726 if (!IsCrossingBarred(tile)) {
01727 BarCrossing(tile);
01728 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01729 MarkTileDirtyByTile(tile);
01730 }
01731 }
01732
01733
01739 static void AdvanceWagonsBeforeSwap(Vehicle *v)
01740 {
01741 Vehicle *base = v;
01742 Vehicle *first = base;
01743 Vehicle *last = GetLastVehicleInChain(v);
01744 uint length = CountVehiclesInChain(v);
01745
01746 while (length > 2) {
01747 last = last->Previous();
01748 first = first->Next();
01749
01750 int differential = base->u.rail.cached_veh_length - last->u.rail.cached_veh_length;
01751
01752
01753
01754 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01755
01756 base = first;
01757 length -= 2;
01758 }
01759 }
01760
01761
01767 static void AdvanceWagonsAfterSwap(Vehicle *v)
01768 {
01769
01770 Vehicle *dep = v;
01771 while (dep->Next() != NULL && (dep->u.rail.track == TRACK_BIT_DEPOT || dep->Next()->u.rail.track != TRACK_BIT_DEPOT)) {
01772 dep = dep->Next();
01773 }
01774
01775 Vehicle *leave = dep->Next();
01776
01777 if (leave != NULL) {
01778
01779 int d = TicksToLeaveDepot(dep);
01780
01781 if (d <= 0) {
01782 leave->vehstatus &= ~VS_HIDDEN;
01783 leave->u.rail.track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01784 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01785 }
01786 } else {
01787 dep = NULL;
01788 }
01789
01790 Vehicle *base = v;
01791 Vehicle *first = base;
01792 Vehicle *last = GetLastVehicleInChain(v);
01793 uint length = CountVehiclesInChain(v);
01794
01795
01796
01797 bool nomove = (dep == NULL);
01798
01799 while (length > 2) {
01800
01801
01802 if (base == dep) break;
01803
01804
01805 if (last == dep) nomove = true;
01806
01807 last = last->Previous();
01808 first = first->Next();
01809
01810 int differential = last->u.rail.cached_veh_length - base->u.rail.cached_veh_length;
01811
01812
01813 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01814
01815 base = first;
01816 length -= 2;
01817 }
01818 }
01819
01820
01821 static void ReverseTrainDirection(Vehicle *v)
01822 {
01823 if (IsRailDepotTile(v->tile)) {
01824 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01825 }
01826
01827
01828 FreeTrainTrackReservation(v);
01829
01830
01831 TileIndex crossing = TrainApproachingCrossingTile(v);
01832
01833
01834 int r = CountVehiclesInChain(v) - 1;
01835
01836 AdvanceWagonsBeforeSwap(v);
01837
01838
01839 int l = 0;
01840 do {
01841 ReverseTrainSwapVeh(v, l++, r--);
01842 } while (l <= r);
01843
01844 AdvanceWagonsAfterSwap(v);
01845
01846 if (IsRailDepotTile(v->tile)) {
01847 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01848 }
01849
01850 ToggleBit(v->u.rail.flags, VRF_TOGGLE_REVERSE);
01851
01852 ClrBit(v->u.rail.flags, VRF_REVERSING);
01853
01854
01855 TrainConsistChanged(v, true);
01856
01857
01858 for (Vehicle *u = v; u != NULL; u = u->Next()) u->cur_image = u->GetImage(u->direction);
01859
01860
01861 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01862
01863
01864 crossing = TrainApproachingCrossingTile(v);
01865 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01866
01867
01868 if (v->u.rail.track & TRACK_BIT_DEPOT) {
01869
01870 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01871 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01872 return;
01873 }
01874
01875
01876
01877 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
01878 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01879
01880 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01881
01882
01883 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01884 HasSignalOnTrackdir(v->tile, GetVehicleTrackdir(v)) &&
01885 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->u.rail.track))));
01886
01887 if (IsRailwayStationTile(v->tile)) SetRailwayStationPlatformReservation(v->tile, TrackdirToExitdir(GetVehicleTrackdir(v)), true);
01888 if (TryPathReserve(v, false, first_tile_okay)) {
01889
01890 CheckNextTrainTile(v);
01891 } else if (v->current_order.GetType() != OT_LOADING) {
01892
01893 MarkTrainAsStuck(v);
01894 }
01895 } else if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01896
01897 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01898 v->load_unload_time_rem = 0;
01899 }
01900 }
01901
01908 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01909 {
01910 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01911
01912 Vehicle *v = GetVehicle(p1);
01913
01914 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01915
01916 if (p2 != 0) {
01917
01918
01919 if (IsMultiheaded(v) || HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) {
01920 return_cmd_error(STR_ONLY_TURN_SINGLE_UNIT);
01921 }
01922
01923 Vehicle *front = v->First();
01924
01925 if (CheckTrainStoppedInDepot(front) < 0) {
01926 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01927 }
01928
01929 if (flags & DC_EXEC) {
01930 ToggleBit(v->u.rail.flags, VRF_REVERSE_DIRECTION);
01931 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
01932 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
01933 }
01934 } else {
01935
01936 if (v->vehstatus & VS_CRASHED || v->breakdown_ctr != 0) return CMD_ERROR;
01937
01938 if (flags & DC_EXEC) {
01939
01940 if (v->current_order.IsType(OT_LOADING)) {
01941 const Vehicle *last = v;
01942 while (last->Next() != NULL) last = last->Next();
01943
01944
01945 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01946 v->LeaveStation();
01947 }
01948 }
01949
01950 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL && v->cur_speed != 0) {
01951 ToggleBit(v->u.rail.flags, VRF_REVERSING);
01952 } else {
01953 v->cur_speed = 0;
01954 SetLastSpeed(v, 0);
01955 HideFillingPercent(&v->fill_percent_te_id);
01956 ReverseTrainDirection(v);
01957 }
01958 }
01959 }
01960 return CommandCost();
01961 }
01962
01969 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01970 {
01971 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01972
01973 Vehicle *v = GetVehicle(p1);
01974
01975 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01976
01977 if (flags & DC_EXEC) v->u.rail.force_proceed = 0x50;
01978
01979 return CommandCost();
01980 }
01981
01992 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01993 {
01994 CargoID new_cid = GB(p2, 0, 8);
01995 byte new_subtype = GB(p2, 8, 8);
01996 bool only_this = HasBit(p2, 16);
01997
01998 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01999
02000 Vehicle *v = GetVehicle(p1);
02001
02002 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
02003 if (CheckTrainStoppedInDepot(v) < 0) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02004 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_REFIT_DESTROYED_VEHICLE);
02005
02006
02007 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02008
02009 CommandCost cost(EXPENSES_TRAIN_RUN);
02010 uint num = 0;
02011
02012 do {
02013
02014
02015
02016 if (!CanRefitTo(v->engine_type, new_cid)) continue;
02017
02018 const Engine *e = GetEngine(v->engine_type);
02019 if (e->CanCarryCargo()) {
02020 uint16 amount = CALLBACK_FAILED;
02021
02022 if (HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_REFIT_CAPACITY)) {
02023
02024 CargoID temp_cid = v->cargo_type;
02025 byte temp_subtype = v->cargo_subtype;
02026 v->cargo_type = new_cid;
02027 v->cargo_subtype = new_subtype;
02028
02029 amount = GetVehicleCallback(CBID_VEHICLE_REFIT_CAPACITY, 0, 0, v->engine_type, v);
02030
02031 v->cargo_type = temp_cid;
02032 v->cargo_subtype = temp_subtype;
02033 }
02034
02035 if (amount == CALLBACK_FAILED) {
02036 CargoID old_cid = e->GetDefaultCargoType();
02037
02038
02039
02040
02041 amount = e->u.rail.capacity;
02042 switch (old_cid) {
02043 case CT_PASSENGERS: break;
02044 case CT_MAIL:
02045 case CT_GOODS: amount *= 2; break;
02046 default: amount *= 4; break;
02047 }
02048 switch (new_cid) {
02049 case CT_PASSENGERS: break;
02050 case CT_MAIL:
02051 case CT_GOODS: amount /= 2; break;
02052 default: amount /= 4; break;
02053 }
02054 }
02055
02056 if (new_cid != v->cargo_type) {
02057 cost.AddCost(GetRefitCost(v->engine_type));
02058 }
02059
02060 num += amount;
02061 if (flags & DC_EXEC) {
02062 v->cargo.Truncate((v->cargo_type == new_cid) ? amount : 0);
02063 v->cargo_type = new_cid;
02064 v->cargo_cap = amount;
02065 v->cargo_subtype = new_subtype;
02066 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
02067 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02068 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02069 }
02070 }
02071 } while ((v = v->Next()) != NULL && !only_this);
02072
02073 _returned_refit_capacity = num;
02074
02075
02076 if (flags & DC_EXEC) TrainConsistChanged(GetVehicle(p1)->First(), false);
02077
02078 return cost;
02079 }
02080
02081 struct TrainFindDepotData {
02082 uint best_length;
02083 TileIndex tile;
02084 Owner owner;
02089 bool reverse;
02090 };
02091
02092 static bool NtpCallbFindDepot(TileIndex tile, TrainFindDepotData *tfdd, int track, uint length)
02093 {
02094 if (IsTileType(tile, MP_RAILWAY) &&
02095 IsTileOwner(tile, tfdd->owner) &&
02096 IsRailDepot(tile)) {
02097
02098 tfdd->best_length = length / DIAG_FACTOR;
02099 tfdd->tile = tile;
02100 return true;
02101 }
02102
02103 return false;
02104 }
02105
02108 static TrainFindDepotData FindClosestTrainDepot(Vehicle *v, int max_distance)
02109 {
02110 assert(!(v->vehstatus & VS_CRASHED));
02111
02112 TrainFindDepotData tfdd;
02113 tfdd.owner = v->owner;
02114 tfdd.reverse = false;
02115
02116 if (IsRailDepotTile(v->tile)) {
02117 tfdd.tile = v->tile;
02118 tfdd.best_length = 0;
02119 return tfdd;
02120 }
02121
02122 PBSTileInfo origin = FollowTrainReservation(v);
02123 if (IsRailDepotTile(origin.tile)) {
02124 tfdd.tile = origin.tile;
02125 tfdd.best_length = 0;
02126 return tfdd;
02127 }
02128
02129 tfdd.best_length = UINT_MAX;
02130
02131 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02132 if ((_settings_game.pf.reserve_paths || HasReservedTracks(v->tile, v->u.rail.track)) && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02133
02134 switch (pathfinder) {
02135 case VPF_YAPF: {
02136 bool found = YapfFindNearestRailDepotTwoWay(v, max_distance, NPF_INFINITE_PENALTY, &tfdd.tile, &tfdd.reverse);
02137 tfdd.best_length = found ? max_distance / 2 : UINT_MAX;
02138 } break;
02139
02140 case VPF_NPF: {
02141 const Vehicle *last = GetLastVehicleInChain(v);
02142 Trackdir trackdir = GetVehicleTrackdir(v);
02143 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
02144
02145 assert(trackdir != INVALID_TRACKDIR);
02146 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);
02147 if (ftd.best_bird_dist == 0) {
02148
02149 tfdd.tile = ftd.node.tile;
02150
02151
02152
02153
02154 tfdd.best_length = ftd.best_path_dist / NPF_TILE_LENGTH;
02155 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) tfdd.reverse = true;
02156 }
02157 } break;
02158
02159 default:
02160 case VPF_NTP: {
02161
02162 DiagDirection i = TrainExitDir(v->direction, v->u.rail.track);
02163 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02164 if (tfdd.best_length == UINT_MAX){
02165 tfdd.reverse = true;
02166
02167 i = TrainExitDir(ReverseDir(v->direction), v->u.rail.track);
02168 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02169 }
02170 } break;
02171 }
02172
02173 return tfdd;
02174 }
02175
02176 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02177 {
02178 TrainFindDepotData tfdd = FindClosestTrainDepot(this, 0);
02179 if (tfdd.best_length == UINT_MAX) return false;
02180
02181 if (location != NULL) *location = tfdd.tile;
02182 if (destination != NULL) *destination = GetDepotByTile(tfdd.tile)->index;
02183 if (reverse != NULL) *reverse = tfdd.reverse;
02184
02185 return true;
02186 }
02187
02196 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02197 {
02198 if (p2 & DEPOT_MASS_SEND) {
02199
02200 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02201 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02202 }
02203
02204 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02205
02206 Vehicle *v = GetVehicle(p1);
02207
02208 if (v->type != VEH_TRAIN) return CMD_ERROR;
02209
02210 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02211 }
02212
02213
02214 void OnTick_Train()
02215 {
02216 _age_cargo_skip_counter = (_age_cargo_skip_counter == 0) ? 184 : (_age_cargo_skip_counter - 1);
02217 }
02218
02219 static const int8 _vehicle_smoke_pos[8] = {
02220 1, 1, 1, 0, -1, -1, -1, 0
02221 };
02222
02223 static void HandleLocomotiveSmokeCloud(const Vehicle *v)
02224 {
02225 bool sound = false;
02226
02227 if (v->vehstatus & VS_TRAIN_SLOWING || v->load_unload_time_rem != 0 || v->cur_speed < 2) {
02228 return;
02229 }
02230
02231 const Vehicle *u = v;
02232
02233 do {
02234 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02235 int effect_offset = GB(v->u.rail.cached_vis_effect, 0, 4) - 8;
02236 byte effect_type = GB(v->u.rail.cached_vis_effect, 4, 2);
02237 bool disable_effect = HasBit(v->u.rail.cached_vis_effect, 6);
02238
02239
02240 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02241 disable_effect ||
02242 v->vehstatus & VS_HIDDEN) {
02243 continue;
02244 }
02245
02246
02247 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02248
02249
02250 if (!HasPowerOnRail(v->u.rail.railtype, GetTileRailType(v->tile))) continue;
02251
02252 if (effect_type == 0) {
02253
02254 effect_type = rvi->engclass;
02255 } else {
02256 effect_type--;
02257 }
02258
02259 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02260 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02261
02262 if (HasBit(v->u.rail.flags, VRF_REVERSE_DIRECTION)) {
02263 x = -x;
02264 y = -y;
02265 }
02266
02267 switch (effect_type) {
02268 case 0:
02269
02270 if (GB(v->tick_counter, 0, 4) == 0) {
02271 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02272 sound = true;
02273 }
02274 break;
02275
02276 case 1:
02277
02278 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02279 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02280 sound = true;
02281 }
02282 break;
02283
02284 case 2:
02285
02286 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02287 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02288 sound = true;
02289 }
02290 break;
02291
02292 default:
02293 break;
02294 }
02295 } while ((v = v->Next()) != NULL);
02296
02297 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02298 }
02299
02300 void Train::PlayLeaveStationSound() const
02301 {
02302 static const SoundFx sfx[] = {
02303 SND_04_TRAIN,
02304 SND_0A_TRAIN_HORN,
02305 SND_0A_TRAIN_HORN,
02306 SND_47_MAGLEV_2,
02307 SND_41_MAGLEV
02308 };
02309
02310 if (PlayVehicleSound(this, VSE_START)) return;
02311
02312 EngineID engtype = this->engine_type;
02313 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02314 }
02315
02317 static void CheckNextTrainTile(Vehicle *v)
02318 {
02319
02320 if (_settings_game.pf.path_backoff_interval == 255) return;
02321
02322
02323 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->u.rail.track & TRACK_BIT_DEPOT) return;
02324
02325 if (IsRailwayStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02326
02327 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02328
02329 Trackdir td = GetVehicleTrackdir(v);
02330
02331
02332 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02333 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02334 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02335
02336 CFollowTrackRail ft(v);
02337 if (!ft.Follow(v->tile, td)) return;
02338
02339 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02340
02341 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02342 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02343
02344 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02345 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
02346 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02347 }
02348 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02349 }
02350 }
02351 }
02352 }
02353
02354 static bool CheckTrainStayInDepot(Vehicle *v)
02355 {
02356
02357 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
02358 if (u->u.rail.track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02359 }
02360
02361
02362 if (v->u.rail.cached_power == 0) {
02363 v->vehstatus |= VS_STOPPED;
02364 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02365 return true;
02366 }
02367
02368 SigSegState seg_state;
02369
02370 if (v->u.rail.force_proceed == 0) {
02371
02372 if (++v->load_unload_time_rem < 37) {
02373 InvalidateWindowClasses(WC_TRAINS_LIST);
02374 return true;
02375 }
02376
02377 v->load_unload_time_rem = 0;
02378
02379 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02380 if (seg_state == SIGSEG_FULL || GetDepotWaypointReservation(v->tile)) {
02381
02382 InvalidateWindowClasses(WC_TRAINS_LIST);
02383 return true;
02384 }
02385 } else {
02386 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02387 }
02388
02389
02390 if (v->tile == v->dest_tile) {
02391
02392 if (GetDepotWaypointReservation(v->tile)) return true;
02393 SetDepotWaypointReservation(v->tile, true);
02394 VehicleEnterDepot(v);
02395 return true;
02396 }
02397
02398
02399 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->u.rail.force_proceed == 0) {
02400
02401 InvalidateWindowClasses(WC_TRAINS_LIST);
02402 MarkTrainAsStuck(v);
02403 return true;
02404 }
02405
02406 SetDepotWaypointReservation(v->tile, true);
02407 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02408
02409 VehicleServiceInDepot(v);
02410 InvalidateWindowClasses(WC_TRAINS_LIST);
02411 v->PlayLeaveStationSound();
02412
02413 v->u.rail.track = TRACK_BIT_X;
02414 if (v->direction & 2) v->u.rail.track = TRACK_BIT_Y;
02415
02416 v->vehstatus &= ~VS_HIDDEN;
02417 v->cur_speed = 0;
02418
02419 v->UpdateDeltaXY(v->direction);
02420 v->cur_image = v->GetImage(v->direction);
02421 VehicleMove(v, false);
02422 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02423 UpdateTrainAcceleration(v);
02424 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02425
02426 return false;
02427 }
02428
02430 static void ClearPathReservation(const Vehicle *v, TileIndex tile, Trackdir track_dir)
02431 {
02432 DiagDirection dir = TrackdirToExitdir(track_dir);
02433
02434 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02435
02436 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02437 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02438
02439 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02440
02441 SetTunnelBridgeReservation(tile, false);
02442 SetTunnelBridgeReservation(end, false);
02443
02444 if (_settings_client.gui.show_track_reservation) {
02445 MarkTileDirtyByTile(tile);
02446 MarkTileDirtyByTile(end);
02447 }
02448 }
02449 }
02450 } else if (IsRailwayStationTile(tile)) {
02451 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02452
02453
02454 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02455 SetRailwayStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02456 }
02457 } else {
02458
02459 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02460 }
02461 }
02462
02464 void FreeTrainTrackReservation(const Vehicle *v, TileIndex origin, Trackdir orig_td)
02465 {
02466 assert(IsFrontEngine(v));
02467
02468 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02469 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : GetVehicleTrackdir(v);
02470 bool free_tile = tile != v->tile || !(IsRailwayStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02471 StationID station_id = IsRailwayStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02472
02473
02474 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02475
02476 CFollowTrackRail ft(v, GetRailTypeInfo(v->u.rail.railtype)->compatible_railtypes);
02477 while (ft.Follow(tile, td)) {
02478 tile = ft.m_new_tile;
02479 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02480 td = RemoveFirstTrackdir(&bits);
02481 assert(bits == TRACKDIR_BIT_NONE);
02482
02483 if (!IsValidTrackdir(td)) break;
02484
02485 if (IsTileType(tile, MP_RAILWAY)) {
02486 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02487
02488 UnreserveRailTrack(tile, TrackdirToTrack(td));
02489 break;
02490 }
02491 if (HasPbsSignalOnTrackdir(tile, td)) {
02492 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02493
02494 break;
02495 } else {
02496
02497 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02498 MarkTileDirtyByTile(tile);
02499 }
02500 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02501 break;
02502 }
02503 }
02504
02505
02506 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);
02507
02508 free_tile = true;
02509 }
02510 }
02511
02513 struct TrainTrackFollowerData {
02514 TileIndex dest_coords;
02515 StationID station_index;
02516 uint best_bird_dist;
02517 uint best_track_dist;
02518 TrackdirByte best_track;
02519 };
02520
02521 static bool NtpCallbFindStation(TileIndex tile, TrainTrackFollowerData *ttfd, Trackdir track, uint length)
02522 {
02523
02524 if (ttfd->dest_coords == 0) return false;
02525
02526
02527 if ((ttfd->station_index == INVALID_STATION && tile == ttfd->dest_coords) || (
02528 IsTileType(tile, MP_STATION) &&
02529 IsRailwayStation(tile) &&
02530 GetStationIndex(tile) == ttfd->station_index
02531 )) {
02532
02533
02534
02535
02536
02537 ttfd->best_track = track;
02538 ttfd->best_bird_dist = 0;
02539 return true;
02540 } else {
02541
02542 uint dist = DistanceManhattan(tile, ttfd->dest_coords);
02543 if (dist < ttfd->best_bird_dist) {
02544 ttfd->best_bird_dist = dist;
02545 ttfd->best_track = track;
02546 }
02547 return false;
02548 }
02549 }
02550
02551 static void FillWithStationData(TrainTrackFollowerData *fd, const Vehicle *v)
02552 {
02553 fd->dest_coords = v->dest_tile;
02554 fd->station_index = v->current_order.IsType(OT_GOTO_STATION) ? v->current_order.GetDestination() : INVALID_STATION;
02555 }
02556
02557 static const byte _initial_tile_subcoord[6][4][3] = {
02558 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02559 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02560 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02561 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02562 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02563 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02564 };
02565
02566 static const byte _search_directions[6][4] = {
02567 { 0, 9, 2, 9 },
02568 { 9, 1, 9, 3 },
02569 { 9, 0, 3, 9 },
02570 { 1, 9, 9, 2 },
02571 { 3, 2, 9, 9 },
02572 { 9, 9, 1, 0 },
02573 };
02574
02575 static const byte _pick_track_table[6] = {1, 3, 2, 2, 0, 0};
02576
02589 static Track DoTrainPathfind(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02590 {
02591 Track best_track;
02592
02593 #ifdef PF_BENCHMARK
02594 TIC()
02595 #endif
02596
02597 if (path_not_found) *path_not_found = false;
02598
02599 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02600 if (do_track_reservation && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02601
02602 switch (pathfinder) {
02603 case VPF_YAPF: {
02604 Trackdir trackdir = YapfChooseRailTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02605 if (trackdir != INVALID_TRACKDIR) {
02606 best_track = TrackdirToTrack(trackdir);
02607 } else {
02608 best_track = FindFirstTrack(tracks);
02609 }
02610 } break;
02611
02612 case VPF_NPF: {
02613 void *perf = NpfBeginInterval();
02614
02615 NPFFindStationOrTileData fstd;
02616 NPFFillWithOrderData(&fstd, v, do_track_reservation);
02617
02618 PBSTileInfo origin = FollowTrainReservation(v);
02619 assert(IsValidTrackdir(origin.trackdir));
02620
02621 NPFFoundTargetData ftd = NPFRouteToStationOrTile(origin.tile, origin.trackdir, true, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
02622
02623 if (dest != NULL) {
02624 dest->tile = ftd.node.tile;
02625 dest->trackdir = (Trackdir)ftd.node.direction;
02626 dest->okay = ftd.res_okay;
02627 }
02628
02629 if (ftd.best_trackdir == INVALID_TRACKDIR) {
02630
02631
02632
02633 best_track = FindFirstTrack(tracks);
02634 } else {
02635
02636
02637
02638
02639 if (ftd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02640
02641 best_track = TrackdirToTrack(ftd.best_trackdir);
02642 }
02643
02644 int time = NpfEndInterval(perf);
02645 DEBUG(yapf, 4, "[NPFT] %d us - %d rounds - %d open - %d closed -- ", time, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
02646 } break;
02647
02648 default:
02649 case VPF_NTP: {
02650 void *perf = NpfBeginInterval();
02651
02652 TrainTrackFollowerData fd;
02653 FillWithStationData(&fd, v);
02654
02655
02656 fd.best_bird_dist = UINT_MAX;
02657 fd.best_track_dist = UINT_MAX;
02658 fd.best_track = INVALID_TRACKDIR;
02659
02660 NewTrainPathfind(tile - TileOffsByDiagDir(enterdir), v->dest_tile,
02661 v->u.rail.compatible_railtypes, enterdir, (NTPEnumProc*)NtpCallbFindStation, &fd);
02662
02663
02664 if (fd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02665
02666 if (fd.best_track == INVALID_TRACKDIR) {
02667
02668 best_track = FindFirstTrack(tracks);
02669 } else {
02670 best_track = TrackdirToTrack(fd.best_track);
02671 }
02672
02673 int time = NpfEndInterval(perf);
02674 DEBUG(yapf, 4, "[NTPT] %d us - %d rounds - %d open - %d closed -- ", time, 0, 0, 0);
02675 } break;
02676 }
02677
02678 #ifdef PF_BENCHMARK
02679 TOC("PF time = ", 1)
02680 #endif
02681
02682 return best_track;
02683 }
02684
02690 static PBSTileInfo ExtendTrainReservation(const Vehicle *v, TrackBits *new_tracks, DiagDirection *enterdir)
02691 {
02692 bool no_90deg_turns = _settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg;
02693 PBSTileInfo origin = FollowTrainReservation(v);
02694
02695 CFollowTrackRail ft(v);
02696
02697 TileIndex tile = origin.tile;
02698 Trackdir cur_td = origin.trackdir;
02699 while (ft.Follow(tile, cur_td)) {
02700 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02701
02702 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02703 }
02704
02705 if (no_90deg_turns) {
02706 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02707 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02708 }
02709
02710
02711 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRailTile(ft.m_new_tile));
02712 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02713
02714
02715
02716
02717
02718
02719 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02720
02721
02722
02723 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02724
02725
02726 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02727 if (enterdir) *enterdir = ft.m_exitdir;
02728 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02729 }
02730
02731 tile = ft.m_new_tile;
02732 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02733
02734 if (IsSafeWaitingPosition(v, tile, cur_td, true, no_90deg_turns)) {
02735 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, no_90deg_turns);
02736 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02737
02738 return PBSTileInfo(tile, cur_td, true);
02739 }
02740
02741 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02742 }
02743
02744 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02745
02746 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02747 }
02748
02749
02750 tile = origin.tile;
02751 cur_td = origin.trackdir;
02752 TileIndex stopped = ft.m_old_tile;
02753 Trackdir stopped_td = ft.m_old_td;
02754 while (tile != stopped || cur_td != stopped_td) {
02755 if (!ft.Follow(tile, cur_td)) break;
02756
02757 if (no_90deg_turns) {
02758 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02759 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02760 }
02761 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02762
02763 tile = ft.m_new_tile;
02764 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02765
02766 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02767 }
02768
02769
02770 return PBSTileInfo();
02771 }
02772
02783 static bool TryReserveSafeTrack(const Vehicle *v, TileIndex tile, Trackdir td, bool override_tailtype)
02784 {
02785 if (_settings_game.pf.pathfinder_for_trains == VPF_YAPF) {
02786 return YapfRailFindNearestSafeTile(v, tile, td, override_tailtype);
02787 } else {
02788 return NPFRouteToSafeTile(v, tile, td, override_tailtype).res_okay;
02789 }
02790 }
02791
02793 class VehicleOrderSaver
02794 {
02795 private:
02796 Vehicle *v;
02797 Order old_order;
02798 TileIndex old_dest_tile;
02799 StationID old_last_station_visited;
02800 VehicleOrderID index;
02801
02802 public:
02803 VehicleOrderSaver(Vehicle *_v) :
02804 v(_v),
02805 old_order(_v->current_order),
02806 old_dest_tile(_v->dest_tile),
02807 old_last_station_visited(_v->last_station_visited),
02808 index(_v->cur_order_index)
02809 {
02810 }
02811
02812 ~VehicleOrderSaver()
02813 {
02814 this->v->current_order = this->old_order;
02815 this->v->dest_tile = this->old_dest_tile;
02816 this->v->last_station_visited = this->old_last_station_visited;
02817 }
02818
02824 bool SwitchToNextOrder(bool skip_first)
02825 {
02826 if (this->v->GetNumOrders() == 0) return false;
02827
02828 if (skip_first) ++this->index;
02829
02830 int conditional_depth = 0;
02831
02832 do {
02833
02834 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02835
02836 Order *order = GetVehicleOrder(this->v, this->index);
02837 assert(order != NULL);
02838
02839 switch (order->GetType()) {
02840 case OT_GOTO_DEPOT:
02841
02842 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02843 case OT_GOTO_STATION:
02844 case OT_GOTO_WAYPOINT:
02845 this->v->current_order = *order;
02846 UpdateOrderDest(this->v, order);
02847 return true;
02848 case OT_CONDITIONAL: {
02849 if (conditional_depth > this->v->GetNumOrders()) return false;
02850 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02851 if (next != INVALID_VEH_ORDER_ID) {
02852 conditional_depth++;
02853 this->index = next;
02854
02855 continue;
02856 }
02857 break;
02858 }
02859 default:
02860 break;
02861 }
02862
02863
02864 ++this->index;
02865 } while (this->index != this->v->cur_order_index);
02866
02867 return false;
02868 }
02869 };
02870
02871
02872 static Track ChooseTrainTrack(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02873 {
02874 Track best_track = INVALID_TRACK;
02875 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02876 bool changed_signal = false;
02877
02878 assert((tracks & ~TRACK_BIT_MASK) == 0);
02879
02880 if (got_reservation != NULL) *got_reservation = false;
02881
02882
02883 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02884
02885 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02886
02887
02888 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02889 Track track = FindFirstTrack(tracks);
02890
02891 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02892 do_track_reservation = true;
02893 changed_signal = true;
02894 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02895 } else if (!do_track_reservation) {
02896 return track;
02897 }
02898 best_track = track;
02899 }
02900
02901 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02902 DiagDirection dest_enterdir = enterdir;
02903 if (do_track_reservation) {
02904
02905
02906
02907 CheckIfTrainNeedsService(v);
02908 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02909
02910 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02911 if (res_dest.tile == INVALID_TILE) {
02912
02913 if (mark_stuck) MarkTrainAsStuck(v);
02914 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02915 return FindFirstTrack(tracks);
02916 }
02917 }
02918
02919
02920 VehicleOrderSaver orders(v);
02921
02922
02923
02924
02925
02926
02927
02928 if (v->current_order.IsType(OT_LEAVESTATION)) {
02929 orders.SwitchToNextOrder(false);
02930 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02931 v->current_order.IsType(OT_GOTO_STATION) ?
02932 IsRailwayStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02933 v->tile == v->dest_tile))) {
02934 orders.SwitchToNextOrder(true);
02935 }
02936
02937 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02938
02939 bool path_not_found = false;
02940 TileIndex new_tile = res_dest.tile;
02941
02942 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02943 if (new_tile == tile) best_track = next_track;
02944
02945
02946 if (path_not_found) {
02947
02948 if (!HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02949
02950 SetBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02951
02952 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02953 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02954 SetDParam(0, v->index);
02955 AddNewsItem(
02956 STR_TRAIN_IS_LOST,
02957 NS_ADVICE,
02958 v->index,
02959 0);
02960 }
02961 }
02962 } else {
02963
02964 if (HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02965
02966 ClrBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02967
02968 }
02969 }
02970 }
02971
02972
02973 if (!do_track_reservation) return best_track;
02974
02975
02976 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02977 if (mark_stuck) MarkTrainAsStuck(v);
02978 FreeTrainTrackReservation(v);
02979 return best_track;
02980 }
02981
02982
02983 if (res_dest.tile == INVALID_TILE) {
02984
02985 PBSTileInfo origin = FollowTrainReservation(v);
02986 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02987 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02988 best_track = FindFirstTrack(res);
02989 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
02990 if (got_reservation != NULL) *got_reservation = true;
02991 if (changed_signal) MarkTileDirtyByTile(tile);
02992 } else {
02993 FreeTrainTrackReservation(v);
02994 if (mark_stuck) MarkTrainAsStuck(v);
02995 }
02996 return best_track;
02997 }
02998
02999 if (got_reservation != NULL) *got_reservation = true;
03000
03001
03002 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
03003
03004 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
03005 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
03006 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
03007 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
03008 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
03009 }
03010
03011
03012 if (orders.SwitchToNextOrder(true)) {
03013 PBSTileInfo cur_dest;
03014 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
03015 if (cur_dest.tile != INVALID_TILE) {
03016 res_dest = cur_dest;
03017 if (res_dest.okay) continue;
03018
03019 FreeTrainTrackReservation(v);
03020 if (mark_stuck) MarkTrainAsStuck(v);
03021 if (got_reservation != NULL) *got_reservation = false;
03022 changed_signal = false;
03023 break;
03024 }
03025 }
03026
03027 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
03028 FreeTrainTrackReservation(v);
03029 if (mark_stuck) MarkTrainAsStuck(v);
03030 if (got_reservation != NULL) *got_reservation = false;
03031 changed_signal = false;
03032 }
03033 break;
03034 }
03035
03036 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
03037
03038 if (changed_signal) MarkTileDirtyByTile(tile);
03039
03040 return best_track;
03041 }
03042
03051 bool TryPathReserve(Vehicle *v, bool mark_as_stuck, bool first_tile_okay)
03052 {
03053 assert(v->type == VEH_TRAIN && IsFrontEngine(v));
03054
03055
03056
03057
03058 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03059 if (GetDepotWaypointReservation(v->tile)) {
03060 if (mark_as_stuck) MarkTrainAsStuck(v);
03061 return false;
03062 } else {
03063
03064 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
03065 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
03066 }
03067 }
03068
03069
03070 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
03071 TileIndex next_tile = TileAddByDiagDir(v->tile, dir);
03072 if (IsTileType(next_tile, MP_RAILWAY) && HasReservedTracks(next_tile, DiagdirReachesTracks(dir))) {
03073
03074 Trackdir td = FindFirstTrackdir(TrackBitsToTrackdirBits(GetReservedTrackbits(next_tile)) & DiagdirReachesTrackdirs(dir));
03075 if (HasSignalOnTrackdir(next_tile, td) && HasSignalOnTrackdir(next_tile, ReverseTrackdir(td)) &&
03076 !IsPbsSignal(GetSignalType(next_tile, TrackdirToTrack(td)))) {
03077
03078 if (mark_as_stuck) MarkTrainAsStuck(v);
03079 return false;
03080 }
03081 }
03082
03083 bool other_train = false;
03084 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
03085
03086 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
03087
03088 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03089 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03090 return true;
03091 }
03092
03093
03094
03095
03096 if (other_train && v->tile != origin.tile) {
03097 if (mark_as_stuck) MarkTrainAsStuck(v);
03098 return false;
03099 }
03100
03101
03102 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03103 SetDepotWaypointReservation(v->tile, true);
03104 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
03105 }
03106
03107 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
03108 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
03109 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
03110
03111 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
03112
03113 bool res_made = false;
03114 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
03115
03116 if (!res_made) {
03117
03118 if (v->u.rail.track & TRACK_BIT_DEPOT) SetDepotWaypointReservation(v->tile, false);
03119 return false;
03120 }
03121
03122 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03123 v->load_unload_time_rem = 0;
03124 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03125 }
03126 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03127 return true;
03128 }
03129
03130
03131 static bool CheckReverseTrain(Vehicle *v)
03132 {
03133 if (_settings_game.difficulty.line_reverse_mode != 0 ||
03134 v->u.rail.track == TRACK_BIT_DEPOT || v->u.rail.track == TRACK_BIT_WORMHOLE ||
03135 !(v->direction & 1)) {
03136 return false;
03137 }
03138
03139 uint reverse_best = 0;
03140
03141 assert(v->u.rail.track);
03142
03143 switch (_settings_game.pf.pathfinder_for_trains) {
03144 case VPF_YAPF:
03145 reverse_best = YapfCheckReverseTrain(v);
03146 break;
03147
03148 case VPF_NPF: {
03149 NPFFindStationOrTileData fstd;
03150 NPFFoundTargetData ftd;
03151 Vehicle *last = GetLastVehicleInChain(v);
03152
03153 NPFFillWithOrderData(&fstd, v);
03154
03155 Trackdir trackdir = GetVehicleTrackdir(v);
03156 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
03157 assert(trackdir != INVALID_TRACKDIR);
03158 assert(trackdir_rev != INVALID_TRACKDIR);
03159
03160 ftd = NPFRouteToStationOrTileTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
03161 if (ftd.best_bird_dist != 0) {
03162
03163 reverse_best = false;
03164 } else {
03165 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) {
03166 reverse_best = true;
03167 } else {
03168 reverse_best = false;
03169 }
03170 }
03171 } break;
03172
03173 default:
03174 case VPF_NTP: {
03175 TrainTrackFollowerData fd;
03176 FillWithStationData(&fd, v);
03177
03178 int i = _search_directions[FindFirstTrack(v->u.rail.track)][DirToDiagDir(v->direction)];
03179
03180 int best_track = -1;
03181 uint reverse = 0;
03182 uint best_bird_dist = 0;
03183 uint best_track_dist = 0;
03184
03185 for (;;) {
03186 fd.best_bird_dist = UINT_MAX;
03187 fd.best_track_dist = UINT_MAX;
03188
03189 NewTrainPathfind(v->tile, v->dest_tile, v->u.rail.compatible_railtypes, (DiagDirection)(reverse ^ i), (NTPEnumProc*)NtpCallbFindStation, &fd);
03190
03191 if (best_track != -1) {
03192 if (best_bird_dist != 0) {
03193 if (fd.best_bird_dist != 0) {
03194
03195 if (fd.best_bird_dist > best_bird_dist) goto bad;
03196 if (fd.best_bird_dist < best_bird_dist) goto good;
03197 } else {
03198
03199 goto good;
03200 }
03201 } else {
03202 if (fd.best_bird_dist != 0) {
03203
03204 goto bad;
03205 } else {
03206
03207 if (fd.best_track_dist > best_track_dist) goto bad;
03208 if (fd.best_track_dist < best_track_dist) goto good;
03209 }
03210 }
03211
03212
03213
03214 int r = GB(Random(), 0, 8);
03215 if (_pick_track_table[i] == (v->direction & 3)) r += 80;
03216 if (_pick_track_table[best_track] == (v->direction & 3)) r -= 80;
03217 if (r <= 127) goto bad;
03218 }
03219 good:;
03220 best_track = i;
03221 best_bird_dist = fd.best_bird_dist;
03222 best_track_dist = fd.best_track_dist;
03223 reverse_best = reverse;
03224 bad:;
03225 if (reverse != 0) break;
03226 reverse = 2;
03227 }
03228 } break;
03229 }
03230
03231 return reverse_best != 0;
03232 }
03233
03234 TileIndex Train::GetOrderStationLocation(StationID station)
03235 {
03236 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
03237
03238 const Station *st = GetStation(station);
03239 if (!(st->facilities & FACIL_TRAIN)) {
03240
03241 this->cur_order_index++;
03242 return 0;
03243 }
03244
03245 return st->xy;
03246 }
03247
03248 void Train::MarkDirty()
03249 {
03250 Vehicle *v = this;
03251 do {
03252 v->cur_image = v->GetImage(v->direction);
03253 MarkSingleVehicleDirty(v);
03254 } while ((v = v->Next()) != NULL);
03255
03256
03257 TrainCargoChanged(this);
03258 UpdateTrainAcceleration(this);
03259 }
03260
03271 static int UpdateTrainSpeed(Vehicle *v)
03272 {
03273 uint accel;
03274
03275 if (v->vehstatus & VS_STOPPED || HasBit(v->u.rail.flags, VRF_REVERSING) || HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03276 switch (_settings_game.vehicle.train_acceleration_model) {
03277 default: NOT_REACHED();
03278 case TAM_ORIGINAL: accel = v->acceleration * -4; break;
03279 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_BRAKE); break;
03280 }
03281 } else {
03282 switch (_settings_game.vehicle.train_acceleration_model) {
03283 default: NOT_REACHED();
03284 case TAM_ORIGINAL: accel = v->acceleration * 2; break;
03285 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_ACCEL); break;
03286 }
03287 }
03288
03289 uint spd = v->subspeed + accel;
03290 v->subspeed = (byte)spd;
03291 {
03292 int tempmax = v->max_speed;
03293 if (v->cur_speed > v->max_speed)
03294 tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
03295 v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
03296 }
03297
03298
03299
03300
03301
03302
03303
03304
03305
03306
03307
03308
03309 int scaled_spd = spd * 3 >> 2;
03310
03311 scaled_spd += v->progress;
03312 v->progress = 0;
03313 return scaled_spd;
03314 }
03315
03316 static void TrainEnterStation(Vehicle *v, StationID station)
03317 {
03318 v->last_station_visited = station;
03319
03320
03321 Station *st = GetStation(station);
03322 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
03323 st->had_vehicle_of_type |= HVOT_TRAIN;
03324 SetDParam(0, st->index);
03325 AddNewsItem(
03326 STR_8801_CITIZENS_CELEBRATE_FIRST,
03327 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
03328 v->index,
03329 st->index
03330 );
03331 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
03332 }
03333
03334 v->BeginLoading();
03335
03336 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03337 }
03338
03339 static byte AfterSetTrainPos(Vehicle *v, bool new_tile)
03340 {
03341 byte old_z = v->z_pos;
03342 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03343
03344 if (new_tile) {
03345 ClrBit(v->u.rail.flags, VRF_GOINGUP);
03346 ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
03347
03348 if (v->u.rail.track == TRACK_BIT_X || v->u.rail.track == TRACK_BIT_Y) {
03349
03350
03351
03352
03353
03354 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03355 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03356
03357 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03358
03359
03360
03361 if (middle_z != v->z_pos && !IsTunnelTile(TileVirtXY(v->x_pos, v->y_pos))) {
03362 SetBit(v->u.rail.flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03363 }
03364 }
03365 }
03366
03367 VehicleMove(v, true);
03368 return old_z;
03369 }
03370
03371 static const Direction _new_vehicle_direction_table[11] = {
03372 DIR_N , DIR_NW, DIR_W , INVALID_DIR,
03373 DIR_NE, DIR_N , DIR_SW, INVALID_DIR,
03374 DIR_E , DIR_SE, DIR_S
03375 };
03376
03377 static inline Direction GetNewVehicleDirectionByTile(TileIndex new_tile, TileIndex old_tile)
03378 {
03379 uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
03380 TileX(new_tile) - TileX(old_tile) + 1;
03381 assert(offs < 11);
03382 return _new_vehicle_direction_table[offs];
03383 }
03384
03385 static inline int GetDirectionToVehicle(const Vehicle *v, int x, int y)
03386 {
03387 byte offs;
03388
03389 x -= v->x_pos;
03390 if (x >= 0) {
03391 offs = (x > 2) ? 0 : 1;
03392 } else {
03393 offs = (x < -2) ? 2 : 1;
03394 }
03395
03396 y -= v->y_pos;
03397 if (y >= 0) {
03398 offs += ((y > 2) ? 0 : 1) * 4;
03399 } else {
03400 offs += ((y < -2) ? 2 : 1) * 4;
03401 }
03402
03403 assert(offs < 11);
03404 return _new_vehicle_direction_table[offs];
03405 }
03406
03407
03408 static inline bool CheckCompatibleRail(const Vehicle *v, TileIndex tile)
03409 {
03410 return
03411 IsTileOwner(tile, v->owner) && (
03412 !IsFrontEngine(v) ||
03413 HasBit(v->u.rail.compatible_railtypes, GetRailType(tile))
03414 );
03415 }
03416
03417 struct RailtypeSlowdownParams {
03418 byte small_turn, large_turn;
03419 byte z_up;
03420 byte z_down;
03421 };
03422
03423 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03424
03425 {256 / 4, 256 / 2, 256 / 4, 2},
03426 {256 / 4, 256 / 2, 256 / 4, 2},
03427 {256 / 4, 256 / 2, 256 / 4, 2},
03428 {0, 256 / 2, 256 / 4, 2},
03429 };
03430
03432 static inline void AffectSpeedByDirChange(Vehicle *v, Direction new_dir)
03433 {
03434 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03435
03436 DirDiff diff = DirDifference(v->direction, new_dir);
03437 if (diff == DIRDIFF_SAME) return;
03438
03439 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03440 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03441 }
03442
03444 static inline void AffectSpeedByZChange(Vehicle *v, byte old_z)
03445 {
03446 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03447
03448 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03449
03450 if (old_z < v->z_pos) {
03451 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03452 } else {
03453 uint16 spd = v->cur_speed + rsp->z_down;
03454 if (spd <= v->max_speed) v->cur_speed = spd;
03455 }
03456 }
03457
03458 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03459 {
03460 if (IsTileType(tile, MP_RAILWAY) &&
03461 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03462 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03463 Trackdir trackdir = FindFirstTrackdir(tracks);
03464 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03465
03466 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03467 }
03468 }
03469 return false;
03470 }
03471
03472
03473 static void SetVehicleCrashed(Vehicle *v)
03474 {
03475 if (v->u.rail.crash_anim_pos != 0) return;
03476
03477
03478 if (IsFrontEngine(v)) {
03479
03480
03481 FreeTrainTrackReservation(v);
03482 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
03483 ClearPathReservation(u, u->tile, GetVehicleTrackdir(u));
03484 if (IsTileType(u->tile, MP_TUNNELBRIDGE)) {
03485
03486
03487 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(u->tile), false);
03488 }
03489 }
03490 }
03491
03492
03493 TileIndex crossing = TrainApproachingCrossingTile(v);
03494
03495 v->u.rail.crash_anim_pos++;
03496
03497 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03498 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
03499
03500 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03501 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
03502 }
03503
03504 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
03505
03506 for (; v != NULL; v = v->Next()) {
03507 v->vehstatus |= VS_CRASHED;
03508 MarkSingleVehicleDirty(v);
03509 }
03510
03511
03512 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03513 }
03514
03515 static uint CountPassengersInTrain(const Vehicle *v)
03516 {
03517 uint num = 0;
03518
03519 for (; v != NULL; v = v->Next()) {
03520 if (IsCargoInClass(v->cargo_type, CC_PASSENGERS)) num += v->cargo.Count();
03521 }
03522
03523 return num;
03524 }
03525
03532 static uint TrainCrashed(Vehicle *v)
03533 {
03534
03535 if (v->vehstatus & VS_CRASHED) return 0;
03536
03537
03538 uint num = 2 + CountPassengersInTrain(v);
03539
03540 SetVehicleCrashed(v);
03541 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03542
03543 return num;
03544 }
03545
03546 struct TrainCollideChecker {
03547 Vehicle *v;
03548 uint num;
03549 };
03550
03551 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03552 {
03553 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03554
03555 if (v->type != VEH_TRAIN) return NULL;
03556
03557
03558 Vehicle *coll = v->First();
03559
03560
03561 if (coll != tcc->v && v->u.rail.track != TRACK_BIT_DEPOT && abs(v->z_pos - tcc->v->z_pos) < 6) {
03562 int x_diff = v->x_pos - tcc->v->x_pos;
03563 int y_diff = v->y_pos - tcc->v->y_pos;
03564
03565
03566 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03567
03568
03569 tcc->num += TrainCrashed(tcc->v);
03570 tcc->num += TrainCrashed(coll);
03571
03572
03573
03574 const Vehicle *u;
03575 FOR_ALL_VEHICLES(u) {
03576 if (u->type == VEH_TRAIN && HASBITS(u->vehstatus, VS_CRASHED) && (u->u.rail.track & TRACK_BIT_DEPOT) == TRACK_BIT_NONE) {
03577 TrackBits trackbits = u->u.rail.track;
03578 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03579
03580 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(u->tile));
03581 }
03582 TryReserveRailTrack(u->tile, TrackBitsToTrack(trackbits));
03583 }
03584 }
03585 }
03586
03587 return NULL;
03588 }
03589
03596 static bool CheckTrainCollision(Vehicle *v)
03597 {
03598
03599 if (v->u.rail.track == TRACK_BIT_DEPOT) return false;
03600
03601 assert(v->u.rail.track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03602
03603 TrainCollideChecker tcc;
03604 tcc.v = v;
03605 tcc.num = 0;
03606
03607
03608 if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
03609 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03610 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03611 } else {
03612 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03613 }
03614
03615
03616 if (tcc.num == 0) return false;
03617
03618 SetDParam(0, tcc.num);
03619 AddNewsItem(STR_8868_TRAIN_CRASH_DIE_IN_FIREBALL,
03620 NS_ACCIDENT_VEHICLE,
03621 v->index,
03622 0
03623 );
03624
03625 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03626 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03627 return true;
03628 }
03629
03630 static Vehicle *CheckVehicleAtSignal(Vehicle *v, void *data)
03631 {
03632 DiagDirection exitdir = *(DiagDirection *)data;
03633
03634
03635 if (v->type == VEH_TRAIN && IsFrontEngine(v) && (v->u.rail.track & TRACK_BIT_MASK) != 0 && !(v->vehstatus & VS_CRASHED)) {
03636 if (v->cur_speed <= 5 && TrainExitDir(v->direction, v->u.rail.track) == exitdir) return v;
03637 }
03638
03639 return NULL;
03640 }
03641
03642 static void TrainController(Vehicle *v, Vehicle *nomove)
03643 {
03644 Vehicle *prev;
03645
03646
03647 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03648 DiagDirection enterdir = DIAGDIR_BEGIN;
03649 bool update_signals_crossing = false;
03650
03651 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03652 if (v->u.rail.track != TRACK_BIT_WORMHOLE) {
03653
03654 if (gp.old_tile == gp.new_tile) {
03655
03656 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03657
03658 gp.x = v->x_pos;
03659 gp.y = v->y_pos;
03660 } else {
03661
03662
03663
03664 if (IsFrontEngine(v) && !TrainCheckIfLineEnds(v)) return;
03665
03666 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03667 if (HasBit(r, VETS_CANNOT_ENTER)) {
03668 goto invalid_rail;
03669 }
03670 if (HasBit(r, VETS_ENTERED_STATION)) {
03671
03672 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03673 }
03674 }
03675 } else {
03676
03677
03678
03679 Direction dir = GetNewVehicleDirectionByTile(gp.new_tile, gp.old_tile);
03680 enterdir = DirToDiagDir(dir);
03681 assert(IsValidDiagDirection(enterdir));
03682
03683
03684
03685 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03686 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03687
03688 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03689 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03690
03691 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03692 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg && prev == NULL) {
03693
03694
03695 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
03696 }
03697
03698 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03699
03700
03701
03702 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03703
03704 TrackBits chosen_track;
03705 if (prev == NULL) {
03706
03707
03708 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03709 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03710
03711
03712 if (red_signals & chosen_track && v->u.rail.force_proceed == 0) {
03713
03714 Trackdir i = FindFirstTrackdir(trackdirbits);
03715
03716
03717 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) return;
03718
03719 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03720 v->cur_speed = 0;
03721 v->subspeed = 0;
03722 v->progress = 255 - 100;
03723 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_oneway_signal * 20) return;
03724 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03725 v->cur_speed = 0;
03726 v->subspeed = 0;
03727 v->progress = 255 - 10;
03728 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_twoway_signal * 73) {
03729 DiagDirection exitdir = TrackdirToExitdir(i);
03730 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03731
03732 exitdir = ReverseDiagDir(exitdir);
03733
03734
03735 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckVehicleAtSignal)) return;
03736 }
03737 }
03738
03739
03740
03741 if (_settings_game.pf.wait_for_pbs_path == 255 && UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03742 v->load_unload_time_rem = 0;
03743 return;
03744 }
03745 goto reverse_train_direction;
03746 } else {
03747 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03748 }
03749 } else {
03750 static const TrackBits _matching_tracks[8] = {
03751 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03752 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y,
03753 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03754 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y
03755 };
03756
03757
03758 chosen_track = (TrackBits)(byte)(_matching_tracks[GetDirectionToVehicle(prev, gp.x, gp.y)] & bits);
03759 }
03760
03761
03762 assert(
03763 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03764 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03765 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03766
03767
03768 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03769 gp.x = (gp.x & ~0xF) | b[0];
03770 gp.y = (gp.y & ~0xF) | b[1];
03771 Direction chosen_dir = (Direction)b[2];
03772
03773
03774 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03775 if (HasBit(r, VETS_CANNOT_ENTER)) {
03776 goto invalid_rail;
03777 }
03778
03779 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03780 Track track = FindFirstTrack(chosen_track);
03781 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03782 if (IsFrontEngine(v) && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03783 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03784 MarkTileDirtyByTile(gp.new_tile);
03785 }
03786
03787
03788 if (v->Next() == NULL) ClearPathReservation(v, v->tile, GetVehicleTrackdir(v));
03789
03790 v->tile = gp.new_tile;
03791
03792 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03793 TrainPowerChanged(v->First());
03794 }
03795
03796 v->u.rail.track = chosen_track;
03797 assert(v->u.rail.track);
03798 }
03799
03800
03801
03802 update_signals_crossing = true;
03803
03804 if (prev == NULL) AffectSpeedByDirChange(v, chosen_dir);
03805
03806 v->direction = chosen_dir;
03807
03808 if (IsFrontEngine(v)) {
03809 v->load_unload_time_rem = 0;
03810
03811
03812 TileIndex crossing = TrainApproachingCrossingTile(v);
03813 if (crossing != INVALID_TILE && GetCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03814
03815
03816 CheckNextTrainTile(v);
03817 }
03818 }
03819 } else {
03820
03821
03822
03823 if (!(v->vehstatus & VS_HIDDEN)) {
03824 v->cur_speed =
03825 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03826 }
03827
03828 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03829
03830 if (IsFrontEngine(v)) {
03831 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03832 CheckNextTrainTile(v);
03833 }
03834 } else {
03835 v->x_pos = gp.x;
03836 v->y_pos = gp.y;
03837 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03838 continue;
03839 }
03840 }
03841
03842
03843 v->UpdateDeltaXY(v->direction);
03844
03845 v->x_pos = gp.x;
03846 v->y_pos = gp.y;
03847
03848
03849 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03850
03851 if (prev == NULL) {
03852
03853 AffectSpeedByZChange(v, old_z);
03854 }
03855
03856 if (update_signals_crossing) {
03857 if (IsFrontEngine(v)) {
03858 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03859
03860
03861
03862
03863
03864
03865
03866
03867 if ((!HasReservedTracks(gp.new_tile, v->u.rail.track) &&
03868 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->u.rail.track))) ||
03869 !TryPathReserve(v)) {
03870 MarkTrainAsStuck(v);
03871 }
03872 }
03873 }
03874
03875
03876
03877 if (v->Next() == NULL) {
03878 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03879 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03880 }
03881 }
03882
03883
03884 if (IsFrontEngine(v) && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03885 }
03886 return;
03887
03888 invalid_rail:
03889
03890 if (prev != NULL) error("Disconnecting train");
03891
03892 reverse_train_direction:
03893 v->load_unload_time_rem = 0;
03894 v->cur_speed = 0;
03895 v->subspeed = 0;
03896 ReverseTrainDirection(v);
03897 }
03898
03904 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03905 {
03906 TrackBits *trackbits = (TrackBits *)data;
03907
03908 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03909 if ((v->u.rail.track & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03910
03911 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03912 } else {
03913 *trackbits |= v->u.rail.track;
03914 }
03915 }
03916
03917 return NULL;
03918 }
03919
03927 static void DeleteLastWagon(Vehicle *v)
03928 {
03929 Vehicle *first = v->First();
03930
03931
03932
03933
03934 Vehicle *u = v;
03935 for (; v->Next() != NULL; v = v->Next()) u = v;
03936 u->SetNext(NULL);
03937
03938 if (first != v) {
03939
03940 TrainConsistChanged(first, false);
03941
03942
03943 if (first->u.rail.track == TRACK_BIT_DEPOT) {
03944 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
03945 }
03946 }
03947
03948
03949 TrackBits trackbits = v->u.rail.track;
03950 TileIndex tile = v->tile;
03951 Owner owner = v->owner;
03952
03953 delete v;
03954 v = NULL;
03955
03956 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03957
03958 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03959 }
03960
03961 Track track = TrackBitsToTrack(trackbits);
03962 if (HasReservedTracks(tile, trackbits)) {
03963 UnreserveRailTrack(tile, track);
03964
03965
03966 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03967 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03968
03969
03970 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03971 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03972 if (HasBit(remaining_trackbits, t)) {
03973 TryReserveRailTrack(tile, t);
03974 }
03975 }
03976 }
03977
03978
03979 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03980
03981
03982 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03983 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03984 } else {
03985 SetSignalsOnBothDir(tile, track, owner);
03986 }
03987 }
03988
03989 static void ChangeTrainDirRandomly(Vehicle *v)
03990 {
03991 static const DirDiff delta[] = {
03992 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03993 };
03994
03995 do {
03996
03997 if (!(v->vehstatus & VS_HIDDEN)) {
03998 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03999 v->UpdateDeltaXY(v->direction);
04000 v->cur_image = v->GetImage(v->direction);
04001
04002
04003
04004 if (v->u.rail.track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
04005 }
04006 } while ((v = v->Next()) != NULL);
04007 }
04008
04009 static void HandleCrashedTrain(Vehicle *v)
04010 {
04011 int state = ++v->u.rail.crash_anim_pos;
04012
04013 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
04014 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
04015 }
04016
04017 uint32 r;
04018 if (state <= 200 && Chance16R(1, 7, r)) {
04019 int index = (r * 10 >> 16);
04020
04021 Vehicle *u = v;
04022 do {
04023 if (--index < 0) {
04024 r = Random();
04025
04026 CreateEffectVehicleRel(u,
04027 GB(r, 8, 3) + 2,
04028 GB(r, 16, 3) + 2,
04029 GB(r, 0, 3) + 5,
04030 EV_EXPLOSION_SMALL);
04031 break;
04032 }
04033 } while ((u = u->Next()) != NULL);
04034 }
04035
04036 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
04037
04038 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
04039 DeleteLastWagon(v);
04040 InvalidateWindow(WC_REPLACE_VEHICLE, (v->group_id << 16) | VEH_TRAIN);
04041 }
04042 }
04043
04044 static void HandleBrokenTrain(Vehicle *v)
04045 {
04046 if (v->breakdown_ctr != 1) {
04047 v->breakdown_ctr = 1;
04048 v->cur_speed = 0;
04049
04050 if (v->breakdowns_since_last_service != 255)
04051 v->breakdowns_since_last_service++;
04052
04053 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04054 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
04055
04056 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
04057 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
04058 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
04059 }
04060
04061 if (!(v->vehstatus & VS_HIDDEN)) {
04062 Vehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
04063 if (u != NULL) u->u.effect.animation_state = v->breakdown_delay * 2;
04064 }
04065 }
04066
04067 if (!(v->tick_counter & 3)) {
04068 if (!--v->breakdown_delay) {
04069 v->breakdown_ctr = 0;
04070 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04071 }
04072 }
04073 }
04074
04076 static const uint16 _breakdown_speeds[16] = {
04077 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
04078 };
04079
04080
04088 static bool TrainApproachingLineEnd(Vehicle *v, bool signal)
04089 {
04090
04091 uint x = v->x_pos & 0xF;
04092 uint y = v->y_pos & 0xF;
04093
04094
04095
04096 switch (v->direction) {
04097 case DIR_N : x = ~x + ~y + 25; break;
04098 case DIR_NW: x = y;
04099 case DIR_NE: x = ~x + 16; break;
04100 case DIR_E : x = ~x + y + 9; break;
04101 case DIR_SE: x = y; break;
04102 case DIR_S : x = x + y - 7; break;
04103 case DIR_W : x = ~y + x + 9; break;
04104 default: break;
04105 }
04106
04107
04108 if (!signal && x + (v->u.rail.cached_veh_length + 1) / 2 >= TILE_SIZE) {
04109
04110 v->cur_speed = 0;
04111 ReverseTrainDirection(v);
04112 return false;
04113 }
04114
04115
04116 v->vehstatus |= VS_TRAIN_SLOWING;
04117 uint16 break_speed = _breakdown_speeds[x & 0xF];
04118 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04119
04120 return true;
04121 }
04122
04123
04129 static bool TrainCanLeaveTile(const Vehicle *v)
04130 {
04131
04132 if (v->u.rail.track == TRACK_BIT_WORMHOLE || v->u.rail.track == TRACK_BIT_DEPOT) return false;
04133
04134 TileIndex tile = v->tile;
04135
04136
04137 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
04138 DiagDirection dir = GetTunnelBridgeDirection(tile);
04139 if (DiagDirToDir(dir) == v->direction) return false;
04140 }
04141
04142
04143 if (IsRailDepotTile(tile)) {
04144 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
04145 if (DiagDirToDir(dir) == v->direction) return false;
04146 }
04147
04148 return true;
04149 }
04150
04151
04159 static TileIndex TrainApproachingCrossingTile(const Vehicle *v)
04160 {
04161 assert(IsFrontEngine(v));
04162 assert(!(v->vehstatus & VS_CRASHED));
04163
04164 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
04165
04166 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04167 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04168
04169
04170 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
04171 !CheckCompatibleRail(v, tile)) {
04172 return INVALID_TILE;
04173 }
04174
04175 return tile;
04176 }
04177
04178
04185 static bool TrainCheckIfLineEnds(Vehicle *v)
04186 {
04187
04188
04189 int t = v->breakdown_ctr;
04190 if (t > 1) {
04191 v->vehstatus |= VS_TRAIN_SLOWING;
04192
04193 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
04194 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04195 } else {
04196 v->vehstatus &= ~VS_TRAIN_SLOWING;
04197 }
04198
04199 if (!TrainCanLeaveTile(v)) return true;
04200
04201
04202 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04203
04204 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04205
04206
04207 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
04208 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
04209
04210 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
04211 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
04212
04213
04214
04215
04216 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
04217 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
04218 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
04219 }
04220
04221
04222 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
04223 return TrainApproachingLineEnd(v, false);
04224 }
04225
04226
04227 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
04228
04229
04230 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
04231
04232 return true;
04233 }
04234
04235
04236 static void TrainLocoHandler(Vehicle *v, bool mode)
04237 {
04238
04239 if (v->vehstatus & VS_CRASHED) {
04240 if (!mode) HandleCrashedTrain(v);
04241 return;
04242 }
04243
04244 if (v->u.rail.force_proceed != 0) {
04245 v->u.rail.force_proceed--;
04246 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04247 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04248 }
04249
04250
04251 if (v->breakdown_ctr != 0) {
04252 if (v->breakdown_ctr <= 2) {
04253 HandleBrokenTrain(v);
04254 return;
04255 }
04256 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
04257 }
04258
04259 if (HasBit(v->u.rail.flags, VRF_REVERSING) && v->cur_speed == 0) {
04260 ReverseTrainDirection(v);
04261 }
04262
04263
04264 if (v->vehstatus & VS_STOPPED && v->cur_speed == 0) return;
04265
04266 bool valid_order = v->current_order.IsValid() && v->current_order.GetType() != OT_CONDITIONAL;
04267 if (ProcessOrders(v) && CheckReverseTrain(v)) {
04268 v->load_unload_time_rem = 0;
04269 v->cur_speed = 0;
04270 v->subspeed = 0;
04271 ReverseTrainDirection(v);
04272 return;
04273 }
04274
04275 v->HandleLoading(mode);
04276
04277 if (v->current_order.IsType(OT_LOADING)) return;
04278
04279 if (CheckTrainStayInDepot(v)) return;
04280
04281 if (!mode) HandleLocomotiveSmokeCloud(v);
04282
04283
04284 if (!valid_order && v->current_order.IsValid()) {
04285 CheckNextTrainTile(v);
04286 }
04287
04288
04289 if (!mode && HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
04290 ++v->load_unload_time_rem;
04291
04292
04293 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;
04294
04295 if (!turn_around && v->load_unload_time_rem % _settings_game.pf.path_backoff_interval != 0 && v->u.rail.force_proceed == 0) return;
04296 if (!TryPathReserve(v)) {
04297
04298 if (turn_around) ReverseTrainDirection(v);
04299
04300 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK) && v->load_unload_time_rem > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
04301
04302 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
04303 SetDParam(0, v->index);
04304 AddNewsItem(
04305 STR_TRAIN_IS_STUCK,
04306 NS_ADVICE,
04307 v->index,
04308 0);
04309 }
04310 v->load_unload_time_rem = 0;
04311 }
04312
04313 if (v->u.rail.force_proceed == 0) return;
04314 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04315 v->load_unload_time_rem = 0;
04316 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04317 }
04318 }
04319
04320 if (v->current_order.IsType(OT_LEAVESTATION)) {
04321 v->current_order.Free();
04322 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04323 return;
04324 }
04325
04326 int j = UpdateTrainSpeed(v);
04327
04328
04329 if (v->cur_speed == 0 && v->u.rail.last_speed == 0 && v->vehstatus & VS_STOPPED) {
04330 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04331 }
04332
04333 int adv_spd = (v->direction & 1) ? 192 : 256;
04334 if (j < adv_spd) {
04335
04336 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04337 } else {
04338 TrainCheckIfLineEnds(v);
04339
04340 for (;;) {
04341 j -= adv_spd;
04342 TrainController(v, NULL);
04343
04344 if (CheckTrainCollision(v)) break;
04345
04346 adv_spd = (v->direction & 1) ? 192 : 256;
04347
04348
04349 if (j < adv_spd || v->cur_speed == 0) break;
04350
04351 OrderType order_type = v->current_order.GetType();
04352
04353 if ((order_type == OT_GOTO_WAYPOINT &&
04354 v->dest_tile == v->tile) ||
04355 (order_type == OT_GOTO_STATION &&
04356 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
04357 IsTileType(v->tile, MP_STATION) &&
04358 v->current_order.GetDestination() == GetStationIndex(v->tile))) {
04359 ProcessOrders(v);
04360 }
04361 }
04362 SetLastSpeed(v, v->cur_speed);
04363 }
04364
04365 for (Vehicle *u = v; u != NULL; u = u->Next()) {
04366 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04367
04368 uint16 old_image = u->cur_image;
04369 u->cur_image = u->GetImage(u->direction);
04370 if (old_image != u->cur_image) VehicleMove(u, true);
04371 }
04372
04373 if (v->progress == 0) v->progress = j;
04374 }
04375
04376
04377
04378 Money Train::GetRunningCost() const
04379 {
04380 Money cost = 0;
04381 const Vehicle *v = this;
04382
04383 do {
04384 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
04385
04386 byte cost_factor = GetVehicleProperty(v, 0x0D, rvi->running_cost);
04387 if (cost_factor == 0) continue;
04388
04389
04390 if (IsMultiheaded(v)) cost_factor /= 2;
04391
04392 cost += cost_factor * GetPriceByIndex(rvi->running_cost_class);
04393 } while ((v = GetNextVehicle(v)) != NULL);
04394
04395 return cost;
04396 }
04397
04398
04399 void Train::Tick()
04400 {
04401 if (_age_cargo_skip_counter == 0) this->cargo.AgeCargo();
04402
04403 this->tick_counter++;
04404
04405 if (IsFrontEngine(this)) {
04406 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04407 this->current_order_time++;
04408
04409 TrainLocoHandler(this, false);
04410
04411
04412 if (this->type == VEH_TRAIN && IsFrontEngine(this))
04413 TrainLocoHandler(this, true);
04414 } else if (IsFreeWagon(this) && HASBITS(this->vehstatus, VS_CRASHED)) {
04415
04416 if (++this->u.rail.crash_anim_pos >= 4400) delete this;
04417 }
04418 }
04419
04420 static void CheckIfTrainNeedsService(Vehicle *v)
04421 {
04422 static const uint MAX_ACCEPTABLE_DEPOT_DIST = 16;
04423
04424 if (_settings_game.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04425 if (v->IsInDepot()) {
04426 VehicleServiceInDepot(v);
04427 return;
04428 }
04429
04430 TrainFindDepotData tfdd = FindClosestTrainDepot(v, MAX_ACCEPTABLE_DEPOT_DIST);
04431
04432 if (tfdd.best_length == UINT_MAX || tfdd.best_length > MAX_ACCEPTABLE_DEPOT_DIST) {
04433 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04434
04435
04436
04437 v->current_order.MakeDummy();
04438 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04439 }
04440 return;
04441 }
04442
04443 const Depot *depot = GetDepotByTile(tfdd.tile);
04444
04445 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04446 v->current_order.GetDestination() != depot->index &&
04447 !Chance16(3, 16)) {
04448 return;
04449 }
04450
04451 v->current_order.MakeGoToDepot(depot->index, ODTFB_SERVICE);
04452 v->dest_tile = tfdd.tile;
04453 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04454 }
04455
04456 void Train::OnNewDay()
04457 {
04458 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04459
04460 if (IsFrontEngine(this)) {
04461 CheckVehicleBreakdown(this);
04462 AgeVehicle(this);
04463
04464 CheckIfTrainNeedsService(this);
04465
04466 CheckOrders(this);
04467
04468
04469 if (this->current_order.IsType(OT_GOTO_STATION)) {
04470 TileIndex tile = GetStation(this->current_order.GetDestination())->train_tile;
04471 if (tile != INVALID_TILE) this->dest_tile = tile;
04472 }
04473
04474 if (this->running_ticks != 0) {
04475
04476 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04477
04478 this->profit_this_year -= cost.GetCost();
04479 this->running_ticks = 0;
04480
04481 SubtractMoneyFromCompanyFract(this->owner, cost);
04482
04483 InvalidateWindow(WC_VEHICLE_DETAILS, this->index);
04484 InvalidateWindowClasses(WC_TRAINS_LIST);
04485 }
04486 } else if (IsTrainEngine(this)) {
04487
04488 AgeVehicle(this);
04489 }
04490 }
04491
04492 void InitializeTrains()
04493 {
04494 _age_cargo_skip_counter = 1;
04495 }