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 u->cache_valid = 0;
00245 }
00246
00247 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00248
00249 u->u.rail.user_def_data = GetVehicleProperty(u, 0x25, u->u.rail.user_def_data);
00250 u->cache_valid = 0;
00251 }
00252
00253 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00254 const Engine *e_u = GetEngine(u->engine_type);
00255 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00256
00257 if (!HasBit(EngInfo(u->engine_type)->misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00258
00259
00260 u->u.rail.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->u.rail.first_engine);
00261
00262
00263 u->colourmap = PAL_NONE;
00264
00265 if (rvi_u->visual_effect != 0) {
00266 u->u.rail.cached_vis_effect = rvi_u->visual_effect;
00267 } else {
00268 if (IsTrainWagon(u) || IsArticulatedPart(u)) {
00269
00270 u->u.rail.cached_vis_effect = 0x40;
00271 } else if (rvi_u->engclass == 0) {
00272
00273 u->u.rail.cached_vis_effect = 4;
00274 } else {
00275
00276 u->u.rail.cached_vis_effect = 8;
00277 }
00278 }
00279
00280
00281 if (HasBit(EngInfo(u->engine_type)->callbackmask, CBM_TRAIN_WAGON_POWER)) {
00282 uint16 callback = GetVehicleCallback(CBID_TRAIN_WAGON_POWER, 0, 0, u->engine_type, u);
00283
00284 if (callback != CALLBACK_FAILED) u->u.rail.cached_vis_effect = GB(callback, 0, 8);
00285 }
00286
00287 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00288 UsesWagonOverride(u) && !HasBit(u->u.rail.cached_vis_effect, 7)) {
00289
00290 SetBit(u->u.rail.flags, VRF_POWEREDWAGON);
00291 } else {
00292 ClrBit(u->u.rail.flags, VRF_POWEREDWAGON);
00293 }
00294
00295 if (!IsArticulatedPart(u)) {
00296
00297
00298 if (rvi_u->power > 0) {
00299 v->u.rail.compatible_railtypes |= GetRailTypeInfo(u->u.rail.railtype)->powered_railtypes;
00300 }
00301
00302
00303
00304 if (HasBit(u->u.rail.flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00305 u->u.rail.railtype = RAILTYPE_RAIL;
00306 u->u.rail.compatible_railtypes |= RAILTYPES_RAIL;
00307 }
00308
00309
00310 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00311 uint16 speed = GetVehicleProperty(u, 0x09, rvi_u->max_speed);
00312 if (speed != 0) max_speed = min(speed, max_speed);
00313 }
00314 }
00315
00316 if (e_u->CanCarryCargo() && u->cargo_type == e_u->GetDefaultCargoType() && u->cargo_subtype == 0) {
00317
00318 u->cargo_cap = GetVehicleProperty(u, 0x14, rvi_u->capacity);
00319 }
00320
00321
00322 uint16 veh_len = CALLBACK_FAILED;
00323 if (HasBit(EngInfo(u->engine_type)->callbackmask, CBM_VEHICLE_LENGTH)) {
00324 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00325 }
00326 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00327 veh_len = 8 - Clamp(veh_len, 0, u->Next() == NULL ? 7 : 5);
00328
00329
00330 if (same_length && veh_len != u->u.rail.cached_veh_length) RailVehicleLengthChanged(u);
00331
00332
00333 if (!same_length) u->u.rail.cached_veh_length = veh_len;
00334
00335 v->u.rail.cached_total_length += u->u.rail.cached_veh_length;
00336 u->cache_valid = 0;
00337 }
00338
00339
00340 v->u.rail.cached_max_speed = max_speed;
00341 v->u.rail.cached_tilt = train_can_tilt;
00342
00343
00344 TrainCargoChanged(v);
00345
00346 if (IsFrontEngine(v)) {
00347 UpdateTrainAcceleration(v);
00348 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
00349 }
00350 }
00351
00352 enum AccelType {
00353 AM_ACCEL,
00354 AM_BRAKE
00355 };
00356
00358 static int GetTrainAcceleration(Vehicle *v, bool mode)
00359 {
00360 static const int absolute_max_speed = UINT16_MAX;
00361 int max_speed = absolute_max_speed;
00362 int speed = v->cur_speed * 10 / 16;
00363 int curvecount[2] = {0, 0};
00364
00365
00366 int numcurve = 0;
00367 int sum = 0;
00368 int pos = 0;
00369 int lastpos = -1;
00370 for (const Vehicle *u = v; u->Next() != NULL; u = u->Next(), pos++) {
00371 Direction this_dir = u->direction;
00372 Direction next_dir = u->Next()->direction;
00373
00374 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00375 if (dirdiff == DIRDIFF_SAME) continue;
00376
00377 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00378 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00379 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00380 if (lastpos != -1) {
00381 numcurve++;
00382 sum += pos - lastpos;
00383 if (pos - lastpos == 1) {
00384 max_speed = 88;
00385 }
00386 }
00387 lastpos = pos;
00388 }
00389
00390
00391 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00392 max_speed = 61;
00393 }
00394 }
00395
00396 if ((curvecount[0] != 0 || curvecount[1] != 0) && max_speed > 88) {
00397 int total = curvecount[0] + curvecount[1];
00398
00399 if (curvecount[0] == 1 && curvecount[1] == 1) {
00400 max_speed = absolute_max_speed;
00401 } else if (total > 1) {
00402 if (numcurve > 0) sum /= numcurve;
00403 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00404 }
00405 }
00406
00407 if (max_speed != absolute_max_speed) {
00408
00409 const RailtypeInfo *rti = GetRailTypeInfo(v->u.rail.railtype);
00410 max_speed += (max_speed / 2) * rti->curve_speed;
00411
00412 if (v->u.rail.cached_tilt) {
00413
00414 max_speed += max_speed / 5;
00415 }
00416 }
00417
00418 if (IsTileType(v->tile, MP_STATION) && IsFrontEngine(v)) {
00419 if (v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) {
00420 int station_length = GetStationByTile(v->tile)->GetPlatformLength(v->tile, DirToDiagDir(v->direction));
00421
00422 int st_max_speed = 120;
00423
00424 int delta_v = v->cur_speed / (station_length + 1);
00425 if (v->max_speed > (v->cur_speed - delta_v)) {
00426 st_max_speed = v->cur_speed - (delta_v / 10);
00427 }
00428
00429 st_max_speed = max(st_max_speed, 25 * station_length);
00430 max_speed = min(max_speed, st_max_speed);
00431 }
00432 }
00433
00434 int mass = v->u.rail.cached_weight;
00435 int power = v->u.rail.cached_power * 746;
00436 max_speed = min(max_speed, v->u.rail.cached_max_speed);
00437
00438 int num = 0;
00439 int incl = 0;
00440 int drag_coeff = 20;
00441 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
00442 num++;
00443 drag_coeff += 3;
00444
00445 if (u->u.rail.track == TRACK_BIT_DEPOT) max_speed = min(max_speed, 61);
00446
00447 if (HasBit(u->u.rail.flags, VRF_GOINGUP)) {
00448 incl += u->u.rail.cached_veh_weight * 60;
00449 } else if (HasBit(u->u.rail.flags, VRF_GOINGDOWN)) {
00450 incl -= u->u.rail.cached_veh_weight * 60;
00451 }
00452 }
00453
00454 v->max_speed = max_speed;
00455
00456 const int area = 120;
00457 const int friction = 35;
00458 int resistance;
00459 if (v->u.rail.railtype != RAILTYPE_MAGLEV) {
00460 resistance = 13 * mass / 10;
00461 resistance += 60 * num;
00462 resistance += friction * mass * speed / 1000;
00463 resistance += (area * drag_coeff * speed * speed) / 10000;
00464 } else {
00465 resistance = (area * (drag_coeff / 2) * speed * speed) / 10000;
00466 }
00467 resistance += incl;
00468 resistance *= 4;
00469
00470 const int max_te = v->u.rail.cached_max_te;
00471 int force;
00472 if (speed > 0) {
00473 switch (v->u.rail.railtype) {
00474 case RAILTYPE_RAIL:
00475 case RAILTYPE_ELECTRIC:
00476 case RAILTYPE_MONO:
00477 force = power / speed;
00478 force *= 22;
00479 force /= 10;
00480 if (mode == AM_ACCEL && force > max_te) force = max_te;
00481 break;
00482
00483 default: NOT_REACHED();
00484 case RAILTYPE_MAGLEV:
00485 force = power / 25;
00486 break;
00487 }
00488 } else {
00489
00490 force = (mode == AM_ACCEL && v->u.rail.railtype != RAILTYPE_MAGLEV) ? min(max_te, power) : power;
00491 force = max(force, (mass * 8) + resistance);
00492 }
00493
00494 if (mode == AM_ACCEL) {
00495 return (force - resistance) / (mass * 2);
00496 } else {
00497 return min(-force - resistance, -10000) / mass;
00498 }
00499 }
00500
00501 void UpdateTrainAcceleration(Vehicle *v)
00502 {
00503 assert(IsFrontEngine(v));
00504
00505 v->max_speed = v->u.rail.cached_max_speed;
00506
00507 uint power = v->u.rail.cached_power;
00508 uint weight = v->u.rail.cached_weight;
00509 assert(weight != 0);
00510 v->acceleration = Clamp(power / weight * 4, 1, 255);
00511 }
00512
00513 SpriteID Train::GetImage(Direction direction) const
00514 {
00515 uint8 spritenum = this->spritenum;
00516 SpriteID sprite;
00517
00518 if (HasBit(this->u.rail.flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00519
00520 if (is_custom_sprite(spritenum)) {
00521 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00522 if (sprite != 0) return sprite;
00523
00524 spritenum = GetEngine(this->engine_type)->image_index;
00525 }
00526
00527 sprite = _engine_sprite_base[spritenum] + ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]);
00528
00529 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00530
00531 return sprite;
00532 }
00533
00534 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00535 {
00536 Direction dir = rear_head ? DIR_E : DIR_W;
00537 uint8 spritenum = RailVehInfo(engine)->image_index;
00538
00539 if (is_custom_sprite(spritenum)) {
00540 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00541 if (sprite != 0) {
00542 y += _traininfo_vehicle_pitch;
00543 return sprite;
00544 }
00545
00546 spritenum = GetEngine(engine)->image_index;
00547 }
00548
00549 if (rear_head) spritenum++;
00550
00551 return ((6 + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00552 }
00553
00554 void DrawTrainEngine(int x, int y, EngineID engine, SpriteID pal)
00555 {
00556 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00557 int yf = y;
00558 int yr = y;
00559
00560 SpriteID spritef = GetRailIcon(engine, false, yf);
00561 SpriteID spriter = GetRailIcon(engine, true, yr);
00562 DrawSprite(spritef, pal, x - 14, yf);
00563 DrawSprite(spriter, pal, x + 15, yr);
00564 } else {
00565 SpriteID sprite = GetRailIcon(engine, false, y);
00566 DrawSprite(sprite, pal, x, y);
00567 }
00568 }
00569
00570 static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, DoCommandFlag flags)
00571 {
00572 const Engine *e = GetEngine(engine);
00573 const RailVehicleInfo *rvi = &e->u.rail;
00574 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00575
00576
00577 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00578
00579 if (flags & DC_QUERY_COST) return value;
00580
00581
00582 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00583
00584 uint num_vehicles = 1 + CountArticulatedParts(engine, false);
00585
00586
00587 Vehicle **vl = AllocaM(Vehicle*, num_vehicles + 1);
00588 memset(vl, 0, sizeof(*vl) * (num_vehicles + 1));
00589
00590 if (!Vehicle::AllocateList(vl, num_vehicles)) {
00591 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00592 }
00593
00594 if (flags & DC_EXEC) {
00595 Vehicle *v = vl[0];
00596 v->spritenum = rvi->image_index;
00597
00598 Vehicle *u = NULL;
00599
00600 Vehicle *w;
00601 FOR_ALL_VEHICLES(w) {
00602 if (w->type == VEH_TRAIN && w->tile == tile &&
00603 IsFreeWagon(w) && w->engine_type == engine &&
00604 !HASBITS(w->vehstatus, VS_CRASHED)) {
00605 u = GetLastVehicleInChain(w);
00606 break;
00607 }
00608 }
00609
00610 v = new (v) Train();
00611 v->engine_type = engine;
00612
00613 DiagDirection dir = GetRailDepotDirection(tile);
00614
00615 v->direction = DiagDirToDir(dir);
00616 v->tile = tile;
00617
00618 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00619 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00620
00621 v->x_pos = x;
00622 v->y_pos = y;
00623 v->z_pos = GetSlopeZ(x, y);
00624 v->owner = _current_company;
00625 v->u.rail.track = TRACK_BIT_DEPOT;
00626 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00627
00628
00629 SetTrainWagon(v);
00630
00631 if (u != NULL) {
00632 u->SetNext(v);
00633 } else {
00634 SetFreeWagon(v);
00635 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00636 }
00637
00638 v->cargo_type = e->GetDefaultCargoType();
00639
00640 v->cargo_cap = rvi->capacity;
00641 v->value = value.GetCost();
00642
00643
00644 v->u.rail.railtype = rvi->railtype;
00645
00646 v->build_year = _cur_year;
00647 v->cur_image = 0xAC2;
00648 v->random_bits = VehicleRandomBits();
00649
00650 v->group_id = DEFAULT_GROUP;
00651
00652 AddArticulatedParts(vl, VEH_TRAIN);
00653
00654 _new_vehicle_id = v->index;
00655
00656 VehicleMove(v, false);
00657 TrainConsistChanged(v->First(), false);
00658 UpdateTrainGroupID(v->First());
00659
00660 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
00661 if (IsLocalCompany()) {
00662 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00663 }
00664 GetCompany(_current_company)->num_engines[engine]++;
00665
00666 CheckConsistencyOfArticulatedVehicle(v);
00667 }
00668
00669 return value;
00670 }
00671
00673 static void NormalizeTrainVehInDepot(const Vehicle *u)
00674 {
00675 const Vehicle *v;
00676
00677 FOR_ALL_VEHICLES(v) {
00678 if (v->type == VEH_TRAIN && IsFreeWagon(v) &&
00679 v->tile == u->tile &&
00680 v->u.rail.track == TRACK_BIT_DEPOT) {
00681 if (CmdFailed(DoCommand(0, v->index | (u->index << 16), 1, DC_EXEC,
00682 CMD_MOVE_RAIL_VEHICLE)))
00683 break;
00684 }
00685 }
00686 }
00687
00688 static void AddRearEngineToMultiheadedTrain(Vehicle *v, Vehicle *u, bool building)
00689 {
00690 u = new (u) Train();
00691 u->direction = v->direction;
00692 u->owner = v->owner;
00693 u->tile = v->tile;
00694 u->x_pos = v->x_pos;
00695 u->y_pos = v->y_pos;
00696 u->z_pos = v->z_pos;
00697 u->u.rail.track = TRACK_BIT_DEPOT;
00698 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00699
00700 SetMultiheaded(u);
00701 u->spritenum = v->spritenum + 1;
00702 u->cargo_type = v->cargo_type;
00703 u->cargo_subtype = v->cargo_subtype;
00704 u->cargo_cap = v->cargo_cap;
00705 u->u.rail.railtype = v->u.rail.railtype;
00706 if (building) v->SetNext(u);
00707 u->engine_type = v->engine_type;
00708 u->build_year = v->build_year;
00709 if (building) v->value >>= 1;
00710 u->value = v->value;
00711 u->cur_image = 0xAC2;
00712 u->random_bits = VehicleRandomBits();
00713 VehicleMove(u, false);
00714 }
00715
00722 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00723 {
00724
00725 if (!IsEngineBuildable(p1, VEH_TRAIN, _current_company)) return_cmd_error(STR_RAIL_VEHICLE_NOT_AVAILABLE);
00726
00727 const Engine *e = GetEngine(p1);
00728 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00729
00730
00731 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00732
00733 if (flags & DC_QUERY_COST) return value;
00734
00735
00736
00737 if (!IsRailDepotTile(tile)) return CMD_ERROR;
00738 if (!IsTileOwner(tile, _current_company)) return CMD_ERROR;
00739
00740 const RailVehicleInfo *rvi = RailVehInfo(p1);
00741 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(p1, tile, flags);
00742
00743 uint num_vehicles =
00744 (rvi->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1) +
00745 CountArticulatedParts(p1, false);
00746
00747
00748
00749 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00750
00751
00752 Vehicle **vl = AllocaM(Vehicle*, num_vehicles + 1);
00753 memset(vl, 0, sizeof(*vl) * (num_vehicles + 1));
00754
00755 if (!Vehicle::AllocateList(vl, num_vehicles)) {
00756 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00757 }
00758
00759 Vehicle *v = vl[0];
00760
00761 UnitID unit_num = (flags & DC_AUTOREPLACE) ? 0 : GetFreeUnitNumber(VEH_TRAIN);
00762 if (unit_num > _settings_game.vehicle.max_trains) {
00763 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00764 }
00765
00766 if (flags & DC_EXEC) {
00767 DiagDirection dir = GetRailDepotDirection(tile);
00768 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00769 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00770
00771 v = new (v) Train();
00772 v->unitnumber = unit_num;
00773 v->direction = DiagDirToDir(dir);
00774 v->tile = tile;
00775 v->owner = _current_company;
00776 v->x_pos = x;
00777 v->y_pos = y;
00778 v->z_pos = GetSlopeZ(x, y);
00779
00780 v->u.rail.track = TRACK_BIT_DEPOT;
00781 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00782 v->spritenum = rvi->image_index;
00783 v->cargo_type = e->GetDefaultCargoType();
00784
00785 v->cargo_cap = rvi->capacity;
00786 v->max_speed = rvi->max_speed;
00787 v->value = value.GetCost();
00788 v->last_station_visited = INVALID_STATION;
00789
00790
00791 v->engine_type = p1;
00792
00793 v->reliability = e->reliability;
00794 v->reliability_spd_dec = e->reliability_spd_dec;
00795 v->max_age = e->lifelength * DAYS_IN_LEAP_YEAR;
00796
00797 v->name = NULL;
00798 v->u.rail.railtype = rvi->railtype;
00799 _new_vehicle_id = v->index;
00800
00801 v->service_interval = _settings_game.vehicle.servint_trains;
00802 v->date_of_last_service = _date;
00803 v->build_year = _cur_year;
00804 v->cur_image = 0xAC2;
00805 v->random_bits = VehicleRandomBits();
00806
00807
00808 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00809
00810 v->group_id = DEFAULT_GROUP;
00811
00812
00813 SetFrontEngine(v);
00814 SetTrainEngine(v);
00815
00816 VehicleMove(v, false);
00817
00818 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00819 SetMultiheaded(v);
00820 AddRearEngineToMultiheadedTrain(vl[0], vl[1], true);
00821
00822
00823
00824
00825 vl[0]->u.rail.other_multiheaded_part = vl[1];
00826 vl[1]->u.rail.other_multiheaded_part = vl[0];
00827 } else {
00828 AddArticulatedParts(vl, VEH_TRAIN);
00829 }
00830
00831 TrainConsistChanged(v, false);
00832 UpdateTrainGroupID(v);
00833
00834 if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) {
00835 NormalizeTrainVehInDepot(v);
00836 }
00837
00838 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00839 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
00840 InvalidateWindow(WC_COMPANY, v->owner);
00841 if (IsLocalCompany()) {
00842 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00843 }
00844
00845 GetCompany(_current_company)->num_engines[p1]++;
00846
00847 CheckConsistencyOfArticulatedVehicle(v);
00848 }
00849
00850 return value;
00851 }
00852
00853
00854
00855
00856 int CheckTrainInDepot(const Vehicle *v, bool needs_to_be_stopped)
00857 {
00858 TileIndex tile = v->tile;
00859
00860
00861 if (!IsRailDepotTile(tile) || v->cur_speed != 0) return -1;
00862
00863 int count = 0;
00864 for (; v != NULL; v = v->Next()) {
00865
00866
00867
00868
00869
00870 if (!IsArticulatedPart(v) && !IsRearDualheaded(v)) count++;
00871 if (v->u.rail.track != TRACK_BIT_DEPOT || v->tile != tile ||
00872 (IsFrontEngine(v) && needs_to_be_stopped && !(v->vehstatus & VS_STOPPED))) {
00873 return -1;
00874 }
00875 }
00876
00877 return count;
00878 }
00879
00880
00881 int CheckTrainStoppedInDepot(const Vehicle *v)
00882 {
00883 return CheckTrainInDepot(v, true);
00884 }
00885
00886
00887 inline bool CheckTrainIsInsideDepot(const Vehicle *v)
00888 {
00889 return CheckTrainInDepot(v, false) > 0;
00890 }
00891
00898 static Vehicle *UnlinkWagon(Vehicle *v, Vehicle *first)
00899 {
00900
00901 if (v == first) {
00902 v = GetNextVehicle(v);
00903 if (v == NULL) return NULL;
00904
00905 if (IsTrainWagon(v)) SetFreeWagon(v);
00906
00907
00908
00909
00910 v->Previous()->SetNext(NULL);
00911
00912 return v;
00913 }
00914
00915 Vehicle *u;
00916 for (u = first; GetNextVehicle(u) != v; u = GetNextVehicle(u)) {}
00917 GetLastEnginePart(u)->SetNext(GetNextVehicle(v));
00918 return first;
00919 }
00920
00921 static Vehicle *FindGoodVehiclePos(const Vehicle *src)
00922 {
00923 Vehicle *dst;
00924 EngineID eng = src->engine_type;
00925 TileIndex tile = src->tile;
00926
00927 FOR_ALL_VEHICLES(dst) {
00928 if (dst->type == VEH_TRAIN && IsFreeWagon(dst) && dst->tile == tile && !HASBITS(dst->vehstatus, VS_CRASHED)) {
00929
00930 Vehicle *v = dst;
00931
00932 while (v->engine_type == eng) {
00933 v = v->Next();
00934 if (v == NULL) return dst;
00935 }
00936 }
00937 }
00938
00939 return NULL;
00940 }
00941
00942
00943
00944
00945
00946 static void AddWagonToConsist(Vehicle *v, Vehicle *dest)
00947 {
00948 UnlinkWagon(v, v->First());
00949 if (dest == NULL) return;
00950
00951 Vehicle *next = dest->Next();
00952 v->SetNext(NULL);
00953 dest->SetNext(v);
00954 v->SetNext(next);
00955 ClearFreeWagon(v);
00956 ClearFrontEngine(v);
00957 }
00958
00959
00960
00961
00962
00963 static void NormaliseTrainConsist(Vehicle *v)
00964 {
00965 if (IsFreeWagon(v)) return;
00966
00967 assert(IsFrontEngine(v));
00968
00969 for (; v != NULL; v = GetNextVehicle(v)) {
00970 if (!IsMultiheaded(v) || !IsTrainEngine(v)) continue;
00971
00972
00973 Vehicle *u;
00974 for (u = v; u->Next() != NULL && !IsTrainEngine(u->Next()); u = u->Next()) {}
00975
00976 if (u == v->u.rail.other_multiheaded_part) continue;
00977 AddWagonToConsist(v->u.rail.other_multiheaded_part, u);
00978 }
00979 }
00980
00990 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00991 {
00992 VehicleID s = GB(p1, 0, 16);
00993 VehicleID d = GB(p1, 16, 16);
00994
00995 if (!IsValidVehicleID(s)) return CMD_ERROR;
00996
00997 Vehicle *src = GetVehicle(s);
00998
00999 if (src->type != VEH_TRAIN || !CheckOwnership(src->owner)) return CMD_ERROR;
01000
01001
01002 if (HASBITS(src->vehstatus, VS_CRASHED)) return CMD_ERROR;
01003
01004
01005 Vehicle *dst;
01006 if (d == INVALID_VEHICLE) {
01007 dst = IsTrainEngine(src) ? NULL : FindGoodVehiclePos(src);
01008 } else {
01009 if (!IsValidVehicleID(d)) return CMD_ERROR;
01010 dst = GetVehicle(d);
01011 if (dst->type != VEH_TRAIN || !CheckOwnership(dst->owner)) return CMD_ERROR;
01012
01013
01014 if (HASBITS(dst->vehstatus, VS_CRASHED)) return CMD_ERROR;
01015 }
01016
01017
01018 while (IsArticulatedPart(src)) src = src->Previous();
01019 if (dst != NULL) {
01020 while (IsArticulatedPart(dst)) dst = dst->Previous();
01021 }
01022
01023
01024 if (src == dst) return CommandCost();
01025
01026
01027 Vehicle *src_head = src->First();
01028 Vehicle *dst_head;
01029 if (dst != NULL) {
01030 dst_head = dst->First();
01031 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01032
01033 dst = GetLastEnginePart(dst);
01034 } else {
01035 dst_head = NULL;
01036 }
01037
01038 if (IsRearDualheaded(src)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01039
01040
01041 if (HasBit(p2, 0) && src_head == dst_head) return CommandCost();
01042
01043
01044 int src_len = CheckTrainStoppedInDepot(src_head);
01045 if (src_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01046
01047 if ((flags & DC_AUTOREPLACE) == 0) {
01048
01049 int max_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
01050
01051
01052 if (src_head != dst_head) {
01053 int dst_len = 0;
01054
01055 if (dst_head != NULL) {
01056
01057 dst_len = CheckTrainStoppedInDepot(dst_head);
01058 if (dst_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01059 }
01060
01061
01062
01063 if (HasBit(p2, 0)) {
01064 const Vehicle *u;
01065 for (u = src_head; u != src && u != NULL; u = GetNextVehicle(u))
01066 src_len--;
01067 } else {
01068
01069 src_len = 1;
01070 }
01071
01072 if (src_len + dst_len > max_len) {
01073
01074 if (dst_head != NULL && IsFrontEngine(dst_head)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01075
01076 if (dst_head == NULL && IsTrainEngine(src)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01077 }
01078 } else {
01079
01080 if (src_len > max_len && src == src_head && IsTrainEngine(GetNextVehicle(src_head)))
01081 return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01082 }
01083 }
01084
01085
01086 if (dst == NULL && !IsFrontEngine(src) && IsTrainEngine(src)) {
01087 UnitID unit_num = ((flags & DC_AUTOREPLACE) != 0 ? 0 : GetFreeUnitNumber(VEH_TRAIN));
01088 if (unit_num > _settings_game.vehicle.max_trains)
01089 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01090
01091 if (flags & DC_EXEC) src->unitnumber = unit_num;
01092 }
01093
01094
01095 if (!HasBit(p2, 0) && (IsFreeWagon(src) || (IsFrontEngine(src) && dst == NULL)) && (flags & DC_AUTOREPLACE) == 0) {
01096 Vehicle *second = GetNextUnit(src);
01097 if (second != NULL && IsTrainEngine(second) && GetFreeUnitNumber(VEH_TRAIN) > _settings_game.vehicle.max_trains) {
01098 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01099 }
01100 }
01101
01102
01103
01104
01105
01106
01107
01108
01109 bool src_in_dst = false;
01110 for (Vehicle *v = dst_head; !src_in_dst && v != NULL; v = v->Next()) src_in_dst = v == src;
01111
01112
01113
01114
01115
01116
01117
01118
01119
01120 if (dst_head != NULL && !src_in_dst && (flags & DC_AUTOREPLACE) == 0) {
01121
01122
01123
01124
01125
01126
01127
01128
01129
01130 Vehicle *dst_tail = dst_head;
01131 while (dst_tail->Next() != NULL) dst_tail = dst_tail->Next();
01132
01133 Vehicle *orig_tail = dst_tail;
01134 Vehicle *next_to_attach = src;
01135 Vehicle *src_previous = src->Previous();
01136
01137 while (next_to_attach != NULL) {
01138
01139 if (!IsArticulatedPart(next_to_attach) && !IsRearDualheaded(next_to_attach)) {
01140
01141 EngineID first_engine = next_to_attach->u.rail.first_engine;
01142 next_to_attach->u.rail.first_engine = INVALID_ENGINE;
01143
01144 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, dst_head->engine_type, next_to_attach, dst_head);
01145
01146
01147 next_to_attach->u.rail.first_engine = first_engine;
01148
01149 if (callback != CALLBACK_FAILED) {
01150 StringID error = STR_NULL;
01151
01152 if (callback == 0xFD) error = STR_INCOMPATIBLE_RAIL_TYPES;
01153 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(dst_head->engine_type), 0xD000 + callback);
01154
01155 if (error != STR_NULL) {
01156
01157
01158
01159
01160
01161
01162
01163
01164
01165 dst_tail->SetNext(next_to_attach);
01166 orig_tail->SetNext(NULL);
01167 if (src_previous != NULL) src_previous->SetNext(src);
01168
01169 return_cmd_error(error);
01170 }
01171 }
01172 }
01173
01174
01175 if (!HasBit(p2, 0)) break;
01176
01177
01178
01179
01180
01181
01182
01183 Vehicle *to_add = next_to_attach;
01184 next_to_attach = next_to_attach->Next();
01185
01186 to_add->SetNext(NULL);
01187 dst_tail->SetNext(to_add);
01188 dst_tail = dst_tail->Next();
01189 }
01190
01191
01192
01193
01194
01195
01196
01197
01198 orig_tail->SetNext(NULL);
01199 if (src_previous != NULL) src_previous->SetNext(src);
01200 }
01201
01202
01203 if (flags & DC_EXEC) {
01204
01205
01206 if (IsFrontEngine(src) && !IsDefaultGroupID(src->group_id)) {
01207 Vehicle *v = GetNextVehicle(src);
01208
01209 if (v != NULL && IsTrainEngine(v)) {
01210 v->group_id = src->group_id;
01211 src->group_id = DEFAULT_GROUP;
01212 }
01213 }
01214
01215 if (HasBit(p2, 0)) {
01216
01217 if (src != src_head) {
01218 Vehicle *v = src_head;
01219 while (GetNextVehicle(v) != src) v = GetNextVehicle(v);
01220 GetLastEnginePart(v)->SetNext(NULL);
01221 } else {
01222 InvalidateWindowData(WC_VEHICLE_DEPOT, src_head->tile);
01223 src_head = NULL;
01224 }
01225 } else {
01226
01227 if (src_head == dst_head) dst_head = NULL;
01228
01229 src_head = UnlinkWagon(src, src_head);
01230 GetLastEnginePart(src)->SetNext(NULL);
01231 }
01232
01233 if (dst == NULL) {
01234
01235 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01236
01237
01238 if (IsTrainEngine(src)) {
01239 if (!IsFrontEngine(src)) {
01240
01241 SetFrontEngine(src);
01242 assert(src->orders.list == NULL);
01243
01244
01245 if (!IsDefaultGroupID(src->group_id) && IsValidGroupID(src->group_id)) {
01246 GetGroup(src->group_id)->num_engines[src->engine_type]--;
01247 }
01248
01249
01250 src->group_id = DEFAULT_GROUP;
01251 }
01252 } else {
01253 SetFreeWagon(src);
01254 }
01255 dst_head = src;
01256 } else {
01257 if (IsFrontEngine(src)) {
01258
01259 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01260 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01261 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01262 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01263 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01264 DeleteVehicleOrders(src);
01265 RemoveVehicleFromGroup(src);
01266 }
01267
01268 if (IsFrontEngine(src) || IsFreeWagon(src)) {
01269 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01270 ClearFrontEngine(src);
01271 ClearFreeWagon(src);
01272 src->unitnumber = 0;
01273 }
01274
01275
01276 {
01277 Vehicle *v;
01278
01279 for (v = src; GetNextVehicle(v) != NULL; v = GetNextVehicle(v)) {}
01280 GetLastEnginePart(v)->SetNext(dst->Next());
01281 }
01282 dst->SetNext(src);
01283 }
01284
01285 if (src->u.rail.other_multiheaded_part != NULL) {
01286 if (src->u.rail.other_multiheaded_part == src_head) {
01287 src_head = src_head->Next();
01288 }
01289 AddWagonToConsist(src->u.rail.other_multiheaded_part, src);
01290 }
01291
01292
01293
01294
01295 if (src_head != NULL && !IsFrontEngine(src_head) && IsTrainEngine(src_head)) {
01296
01297
01298 const GroupID tmp_g = src_head->group_id;
01299 CmdMoveRailVehicle(0, flags, src_head->index | (INVALID_VEHICLE << 16), 1, text);
01300 SetTrainGroupID(src_head, tmp_g);
01301 src_head = NULL;
01302 }
01303
01304 if (src_head != NULL) {
01305 NormaliseTrainConsist(src_head);
01306 TrainConsistChanged(src_head, false);
01307 UpdateTrainGroupID(src_head);
01308 if (IsFrontEngine(src_head)) {
01309
01310 InvalidateWindow(WC_VEHICLE_REFIT, src_head->index);
01311 InvalidateWindowWidget(WC_VEHICLE_VIEW, src_head->index, VVW_WIDGET_REFIT_VEH);
01312 }
01313
01314 InvalidateWindow(WC_VEHICLE_DEPOT, src_head->tile);
01315 }
01316
01317 if (dst_head != NULL) {
01318 NormaliseTrainConsist(dst_head);
01319 TrainConsistChanged(dst_head, false);
01320 UpdateTrainGroupID(dst_head);
01321 if (IsFrontEngine(dst_head)) {
01322
01323 InvalidateWindowWidget(WC_VEHICLE_VIEW, dst_head->index, VVW_WIDGET_REFIT_VEH);
01324 InvalidateWindow(WC_VEHICLE_REFIT, dst_head->index);
01325 }
01326
01327 InvalidateWindow(WC_VEHICLE_DEPOT, dst_head->tile);
01328 }
01329
01330 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01331 }
01332
01333 return CommandCost();
01334 }
01335
01345 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01346 {
01347
01348 Window *w = NULL;
01349
01350 if (!IsValidVehicleID(p1) || p2 > 1) return CMD_ERROR;
01351
01352 Vehicle *v = GetVehicle(p1);
01353
01354 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01355
01356 if (HASBITS(v->vehstatus, VS_CRASHED)) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
01357
01358 while (IsArticulatedPart(v)) v = v->Previous();
01359 Vehicle *first = v->First();
01360
01361
01362 if (CheckTrainStoppedInDepot(first) < 0) {
01363 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01364 }
01365
01366 if (IsRearDualheaded(v)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01367
01368 if (flags & DC_EXEC) {
01369 if (v == first && IsFrontEngine(first)) {
01370 DeleteWindowById(WC_VEHICLE_VIEW, first->index);
01371 DeleteWindowById(WC_VEHICLE_ORDERS, first->index);
01372 DeleteWindowById(WC_VEHICLE_REFIT, first->index);
01373 DeleteWindowById(WC_VEHICLE_DETAILS, first->index);
01374 DeleteWindowById(WC_VEHICLE_TIMETABLE, first->index);
01375 }
01376 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
01377 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01378 }
01379
01380 CommandCost cost(EXPENSES_NEW_VEHICLES);
01381 switch (p2) {
01382 case 0: {
01383 bool switch_engine = false;
01384
01385
01386
01387 Vehicle *rear = (IsMultiheaded(v) &&
01388 IsTrainEngine(v)) ? v->u.rail.other_multiheaded_part : NULL;
01389
01390 if (rear != NULL) {
01391 cost.AddCost(-rear->value);
01392 if (flags & DC_EXEC) {
01393 UnlinkWagon(rear, first);
01394 delete rear;
01395 }
01396 }
01397
01398
01399
01400 if (v == first) {
01401 Vehicle *new_f = GetNextVehicle(first);
01402
01403
01404
01405
01406 if (new_f != NULL && IsTrainEngine(new_f)) {
01407 if (IsTrainEngine(first)) {
01408
01409 switch_engine = true;
01410
01411 if (flags & DC_EXEC) {
01412
01413 new_f->group_id = first->group_id;
01414 first->group_id = DEFAULT_GROUP;
01415
01416
01417 new_f->orders.list = first->orders.list;
01418 new_f->AddToShared(first);
01419 DeleteVehicleOrders(first);
01420
01421
01422 new_f->CopyVehicleConfigAndStatistics(first);
01423
01424
01425 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_f);
01426 }
01427 } else {
01428
01429
01430
01431 cost.AddCost(DoCommand(0, new_f->index | INVALID_VEHICLE << 16, 1, flags, CMD_MOVE_RAIL_VEHICLE));
01432 if (cost.Failed()) return cost;
01433 }
01434 }
01435 }
01436
01437
01438 cost.AddCost(-v->value);
01439 if (flags & DC_EXEC) {
01440 first = UnlinkWagon(v, first);
01441 delete v;
01442
01443
01444
01445 if (switch_engine) SetFrontEngine(first);
01446
01447
01448 if (first != NULL) {
01449 NormaliseTrainConsist(first);
01450 TrainConsistChanged(first, false);
01451 UpdateTrainGroupID(first);
01452 if (IsFrontEngine(first)) InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01453 }
01454
01455 }
01456 } break;
01457 case 1: {
01458
01459
01460
01461 for (Vehicle *tmp; v != NULL; v = tmp) {
01462 tmp = GetNextVehicle(v);
01463
01464 if (IsMultiheaded(v)) {
01465 if (IsTrainEngine(v)) {
01466
01467 Vehicle *rear = v->u.rail.other_multiheaded_part;
01468
01469 if (rear != NULL) {
01470 cost.AddCost(-rear->value);
01471
01472
01473
01474
01475
01476
01477
01478 if (tmp == rear) tmp = GetNextVehicle(tmp);
01479
01480 if (flags & DC_EXEC) {
01481 first = UnlinkWagon(rear, first);
01482 delete rear;
01483 }
01484 }
01485 } else if (v->u.rail.other_multiheaded_part != NULL) {
01486
01487 continue;
01488 }
01489 }
01490
01491 cost.AddCost(-v->value);
01492 if (flags & DC_EXEC) {
01493 first = UnlinkWagon(v, first);
01494 delete v;
01495 }
01496 }
01497
01498
01499 if (flags & DC_EXEC && first != NULL) {
01500 NormaliseTrainConsist(first);
01501 TrainConsistChanged(first, false);
01502 UpdateTrainGroupID(first);
01503 InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01504 }
01505 } break;
01506 }
01507 return cost;
01508 }
01509
01510 void Train::UpdateDeltaXY(Direction direction)
01511 {
01512 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01513 static const uint32 _delta_xy_table[8] = {
01514 MKIT(3, 3, -1, -1),
01515 MKIT(3, 7, -1, -3),
01516 MKIT(3, 3, -1, -1),
01517 MKIT(7, 3, -3, -1),
01518 MKIT(3, 3, -1, -1),
01519 MKIT(3, 7, -1, -3),
01520 MKIT(3, 3, -1, -1),
01521 MKIT(7, 3, -3, -1),
01522 };
01523 #undef MKIT
01524
01525 uint32 x = _delta_xy_table[direction];
01526 this->x_offs = GB(x, 0, 8);
01527 this->y_offs = GB(x, 8, 8);
01528 this->x_extent = GB(x, 16, 8);
01529 this->y_extent = GB(x, 24, 8);
01530 this->z_extent = 6;
01531 }
01532
01533 static void UpdateVarsAfterSwap(Vehicle *v)
01534 {
01535 v->UpdateDeltaXY(v->direction);
01536 v->cur_image = v->GetImage(v->direction);
01537 VehicleMove(v, true);
01538 }
01539
01540 static inline void SetLastSpeed(Vehicle *v, int spd)
01541 {
01542 int old = v->u.rail.last_speed;
01543 if (spd != old) {
01544 v->u.rail.last_speed = spd;
01545 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01546 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01547 }
01548 }
01549 }
01550
01552 static void MarkTrainAsStuck(Vehicle *v)
01553 {
01554 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01555
01556 SetBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01557 v->load_unload_time_rem = 0;
01558
01559
01560 v->cur_speed = 0;
01561 v->subspeed = 0;
01562 SetLastSpeed(v, 0);
01563
01564 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01565 }
01566 }
01567
01568 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01569 {
01570 uint16 flag1 = *swap_flag1;
01571 uint16 flag2 = *swap_flag2;
01572
01573
01574 ClrBit(*swap_flag1, VRF_GOINGUP);
01575 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01576 ClrBit(*swap_flag2, VRF_GOINGUP);
01577 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01578
01579
01580 if (HasBit(flag1, VRF_GOINGUP)) {
01581 SetBit(*swap_flag2, VRF_GOINGDOWN);
01582 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01583 SetBit(*swap_flag2, VRF_GOINGUP);
01584 }
01585 if (HasBit(flag2, VRF_GOINGUP)) {
01586 SetBit(*swap_flag1, VRF_GOINGDOWN);
01587 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01588 SetBit(*swap_flag1, VRF_GOINGUP);
01589 }
01590 }
01591
01592 static void ReverseTrainSwapVeh(Vehicle *v, int l, int r)
01593 {
01594 Vehicle *a, *b;
01595
01596
01597 for (a = v; l != 0; l--) a = a->Next();
01598 for (b = v; r != 0; r--) b = b->Next();
01599
01600 if (a != b) {
01601
01602 {
01603 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01604 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01605 a->vehstatus = tmp;
01606 }
01607
01608 Swap(a->u.rail.track, b->u.rail.track);
01609 Swap(a->direction, b->direction);
01610
01611
01612 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01613 if (b->u.rail.track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01614
01615 Swap(a->x_pos, b->x_pos);
01616 Swap(a->y_pos, b->y_pos);
01617 Swap(a->tile, b->tile);
01618 Swap(a->z_pos, b->z_pos);
01619
01620 SwapTrainFlags(&a->u.rail.flags, &b->u.rail.flags);
01621
01622
01623 UpdateVarsAfterSwap(a);
01624 UpdateVarsAfterSwap(b);
01625
01626
01627 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01628 if (b->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01629 } else {
01630 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01631 UpdateVarsAfterSwap(a);
01632
01633 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01634 }
01635
01636
01637 TrainPowerChanged(v);
01638 }
01639
01640
01646 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01647 {
01648 return (v->type == VEH_TRAIN) ? v : NULL;
01649 }
01650
01651
01658 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01659 {
01660
01661 if (v->type != VEH_TRAIN || !IsFrontEngine(v) || v->vehstatus & VS_CRASHED) return NULL;
01662
01663 TileIndex tile = *(TileIndex*)data;
01664
01665 if (TrainApproachingCrossingTile(v) != tile) return NULL;
01666
01667 return v;
01668 }
01669
01670
01677 static bool TrainApproachingCrossing(TileIndex tile)
01678 {
01679 assert(IsLevelCrossingTile(tile));
01680
01681 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01682 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01683
01684 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01685
01686 dir = ReverseDiagDir(dir);
01687 tile_from = tile + TileOffsByDiagDir(dir);
01688
01689 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01690 }
01691
01692
01699 void UpdateLevelCrossing(TileIndex tile, bool sound)
01700 {
01701 assert(IsLevelCrossingTile(tile));
01702
01703
01704 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || GetCrossingReservation(tile);
01705
01706 if (new_state != IsCrossingBarred(tile)) {
01707 if (new_state && sound) {
01708 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01709 }
01710 SetCrossingBarred(tile, new_state);
01711 MarkTileDirtyByTile(tile);
01712 }
01713 }
01714
01715
01721 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01722 {
01723 if (!IsCrossingBarred(tile)) {
01724 BarCrossing(tile);
01725 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01726 MarkTileDirtyByTile(tile);
01727 }
01728 }
01729
01730
01736 static void AdvanceWagonsBeforeSwap(Vehicle *v)
01737 {
01738 Vehicle *base = v;
01739 Vehicle *first = base;
01740 Vehicle *last = GetLastVehicleInChain(v);
01741 uint length = CountVehiclesInChain(v);
01742
01743 while (length > 2) {
01744 last = last->Previous();
01745 first = first->Next();
01746
01747 int differential = base->u.rail.cached_veh_length - last->u.rail.cached_veh_length;
01748
01749
01750
01751 for (int i = 0; i < differential; i++) TrainController(first, last->Next());
01752
01753 base = first;
01754 length -= 2;
01755 }
01756 }
01757
01758
01764 static void AdvanceWagonsAfterSwap(Vehicle *v)
01765 {
01766
01767 Vehicle *dep = v;
01768 while (dep->Next() != NULL && (dep->u.rail.track == TRACK_BIT_DEPOT || dep->Next()->u.rail.track != TRACK_BIT_DEPOT)) {
01769 dep = dep->Next();
01770 }
01771
01772 Vehicle *leave = dep->Next();
01773
01774 if (leave != NULL) {
01775
01776 int d = TicksToLeaveDepot(dep);
01777
01778 if (d <= 0) {
01779 leave->vehstatus &= ~VS_HIDDEN;
01780 leave->u.rail.track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01781 for (int i = 0; i >= d; i--) TrainController(leave, NULL);
01782 }
01783 } else {
01784 dep = NULL;
01785 }
01786
01787 Vehicle *base = v;
01788 Vehicle *first = base;
01789 Vehicle *last = GetLastVehicleInChain(v);
01790 uint length = CountVehiclesInChain(v);
01791
01792
01793
01794 bool nomove = (dep == NULL);
01795
01796 while (length > 2) {
01797
01798
01799 if (base == dep) break;
01800
01801
01802 if (last == dep) nomove = true;
01803
01804 last = last->Previous();
01805 first = first->Next();
01806
01807 int differential = last->u.rail.cached_veh_length - base->u.rail.cached_veh_length;
01808
01809
01810 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL));
01811
01812 base = first;
01813 length -= 2;
01814 }
01815 }
01816
01817
01818 static void ReverseTrainDirection(Vehicle *v)
01819 {
01820 if (IsRailDepotTile(v->tile)) {
01821 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01822 }
01823
01824
01825 FreeTrainTrackReservation(v);
01826
01827
01828 TileIndex crossing = TrainApproachingCrossingTile(v);
01829
01830
01831 int r = CountVehiclesInChain(v) - 1;
01832
01833 AdvanceWagonsBeforeSwap(v);
01834
01835
01836 int l = 0;
01837 do {
01838 ReverseTrainSwapVeh(v, l++, r--);
01839 } while (l <= r);
01840
01841 AdvanceWagonsAfterSwap(v);
01842
01843 if (IsRailDepotTile(v->tile)) {
01844 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01845 }
01846
01847 ToggleBit(v->u.rail.flags, VRF_TOGGLE_REVERSE);
01848
01849 ClrBit(v->u.rail.flags, VRF_REVERSING);
01850
01851
01852 TrainConsistChanged(v, true);
01853
01854
01855 for (Vehicle *u = v; u != NULL; u = u->Next()) u->cur_image = u->GetImage(u->direction);
01856
01857
01858 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01859
01860
01861 crossing = TrainApproachingCrossingTile(v);
01862 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01863
01864
01865 if (v->u.rail.track & TRACK_BIT_DEPOT) {
01866
01867 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01868 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01869 return;
01870 }
01871
01872
01873
01874 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
01875 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01876
01877 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01878
01879
01880 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01881 HasSignalOnTrackdir(v->tile, GetVehicleTrackdir(v)) &&
01882 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->u.rail.track))));
01883
01884 if (IsRailwayStationTile(v->tile)) SetRailwayStationPlatformReservation(v->tile, TrackdirToExitdir(GetVehicleTrackdir(v)), true);
01885 if (TryPathReserve(v, false, first_tile_okay)) {
01886
01887 CheckNextTrainTile(v);
01888 } else if (v->current_order.GetType() != OT_LOADING) {
01889
01890 MarkTrainAsStuck(v);
01891 }
01892 } else if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01893
01894 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01895 v->load_unload_time_rem = 0;
01896 }
01897 }
01898
01905 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01906 {
01907 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01908
01909 Vehicle *v = GetVehicle(p1);
01910
01911 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01912
01913 if (p2 != 0) {
01914
01915
01916 if (IsMultiheaded(v) || HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) {
01917 return_cmd_error(STR_ONLY_TURN_SINGLE_UNIT);
01918 }
01919
01920 Vehicle *front = v->First();
01921
01922 if (CheckTrainStoppedInDepot(front) < 0) {
01923 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01924 }
01925
01926 if (flags & DC_EXEC) {
01927 ToggleBit(v->u.rail.flags, VRF_REVERSE_DIRECTION);
01928 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
01929 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
01930 }
01931 } else {
01932
01933 if (v->vehstatus & VS_CRASHED || v->breakdown_ctr != 0) return CMD_ERROR;
01934
01935 if (flags & DC_EXEC) {
01936
01937 if (v->current_order.IsType(OT_LOADING)) {
01938 const Vehicle *last = v;
01939 while (last->Next() != NULL) last = last->Next();
01940
01941
01942 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01943 v->LeaveStation();
01944 }
01945 }
01946
01947 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL && v->cur_speed != 0) {
01948 ToggleBit(v->u.rail.flags, VRF_REVERSING);
01949 } else {
01950 v->cur_speed = 0;
01951 SetLastSpeed(v, 0);
01952 HideFillingPercent(&v->fill_percent_te_id);
01953 ReverseTrainDirection(v);
01954 }
01955 }
01956 }
01957 return CommandCost();
01958 }
01959
01966 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01967 {
01968 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01969
01970 Vehicle *v = GetVehicle(p1);
01971
01972 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01973
01974 if (flags & DC_EXEC) v->u.rail.force_proceed = 0x50;
01975
01976 return CommandCost();
01977 }
01978
01989 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01990 {
01991 CargoID new_cid = GB(p2, 0, 8);
01992 byte new_subtype = GB(p2, 8, 8);
01993 bool only_this = HasBit(p2, 16);
01994
01995 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01996
01997 Vehicle *v = GetVehicle(p1);
01998
01999 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
02000 if (CheckTrainStoppedInDepot(v) < 0) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02001 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_REFIT_DESTROYED_VEHICLE);
02002
02003
02004 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02005
02006 CommandCost cost(EXPENSES_TRAIN_RUN);
02007 uint num = 0;
02008
02009 do {
02010
02011
02012
02013 if (!CanRefitTo(v->engine_type, new_cid)) continue;
02014
02015 const Engine *e = GetEngine(v->engine_type);
02016 if (e->CanCarryCargo()) {
02017 uint16 amount = CALLBACK_FAILED;
02018
02019 if (HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_REFIT_CAPACITY)) {
02020
02021 CargoID temp_cid = v->cargo_type;
02022 byte temp_subtype = v->cargo_subtype;
02023 v->cargo_type = new_cid;
02024 v->cargo_subtype = new_subtype;
02025
02026 amount = GetVehicleCallback(CBID_VEHICLE_REFIT_CAPACITY, 0, 0, v->engine_type, v);
02027
02028 v->cargo_type = temp_cid;
02029 v->cargo_subtype = temp_subtype;
02030 }
02031
02032 if (amount == CALLBACK_FAILED) {
02033 CargoID old_cid = e->GetDefaultCargoType();
02034
02035
02036
02037
02038 amount = e->u.rail.capacity;
02039 switch (old_cid) {
02040 case CT_PASSENGERS: break;
02041 case CT_MAIL:
02042 case CT_GOODS: amount *= 2; break;
02043 default: amount *= 4; break;
02044 }
02045 switch (new_cid) {
02046 case CT_PASSENGERS: break;
02047 case CT_MAIL:
02048 case CT_GOODS: amount /= 2; break;
02049 default: amount /= 4; break;
02050 }
02051 }
02052
02053 if (new_cid != v->cargo_type) {
02054 cost.AddCost(GetRefitCost(v->engine_type));
02055 }
02056
02057 num += amount;
02058 if (flags & DC_EXEC) {
02059 v->cargo.Truncate((v->cargo_type == new_cid) ? amount : 0);
02060 v->cargo_type = new_cid;
02061 v->cargo_cap = amount;
02062 v->cargo_subtype = new_subtype;
02063 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
02064 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02065 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02066 }
02067 }
02068 } while ((v = v->Next()) != NULL && !only_this);
02069
02070 _returned_refit_capacity = num;
02071
02072
02073 if (flags & DC_EXEC) TrainConsistChanged(GetVehicle(p1)->First(), false);
02074
02075 return cost;
02076 }
02077
02078 struct TrainFindDepotData {
02079 uint best_length;
02080 TileIndex tile;
02081 Owner owner;
02086 bool reverse;
02087 };
02088
02089 static bool NtpCallbFindDepot(TileIndex tile, TrainFindDepotData *tfdd, int track, uint length)
02090 {
02091 if (IsTileType(tile, MP_RAILWAY) &&
02092 IsTileOwner(tile, tfdd->owner) &&
02093 IsRailDepot(tile)) {
02094
02095 tfdd->best_length = length / DIAG_FACTOR;
02096 tfdd->tile = tile;
02097 return true;
02098 }
02099
02100 return false;
02101 }
02102
02105 static TrainFindDepotData FindClosestTrainDepot(Vehicle *v, int max_distance)
02106 {
02107 assert(!(v->vehstatus & VS_CRASHED));
02108
02109 TrainFindDepotData tfdd;
02110 tfdd.owner = v->owner;
02111 tfdd.reverse = false;
02112
02113 if (IsRailDepotTile(v->tile)) {
02114 tfdd.tile = v->tile;
02115 tfdd.best_length = 0;
02116 return tfdd;
02117 }
02118
02119 PBSTileInfo origin = FollowTrainReservation(v);
02120 if (IsRailDepotTile(origin.tile)) {
02121 tfdd.tile = origin.tile;
02122 tfdd.best_length = 0;
02123 return tfdd;
02124 }
02125
02126 tfdd.best_length = UINT_MAX;
02127
02128 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02129 if ((_settings_game.pf.reserve_paths || HasReservedTracks(v->tile, v->u.rail.track)) && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02130
02131 switch (pathfinder) {
02132 case VPF_YAPF: {
02133 bool found = YapfFindNearestRailDepotTwoWay(v, max_distance, NPF_INFINITE_PENALTY, &tfdd.tile, &tfdd.reverse);
02134 tfdd.best_length = found ? max_distance / 2 : UINT_MAX;
02135 } break;
02136
02137 case VPF_NPF: {
02138 const Vehicle *last = GetLastVehicleInChain(v);
02139 Trackdir trackdir = GetVehicleTrackdir(v);
02140 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
02141
02142 assert(trackdir != INVALID_TRACKDIR);
02143 NPFFoundTargetData ftd = NPFRouteToDepotBreadthFirstTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes, NPF_INFINITE_PENALTY);
02144 if (ftd.best_bird_dist == 0) {
02145
02146 tfdd.tile = ftd.node.tile;
02147
02148
02149
02150
02151 tfdd.best_length = ftd.best_path_dist / NPF_TILE_LENGTH;
02152 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) tfdd.reverse = true;
02153 }
02154 } break;
02155
02156 default:
02157 case VPF_NTP: {
02158
02159 DiagDirection i = TrainExitDir(v->direction, v->u.rail.track);
02160 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02161 if (tfdd.best_length == UINT_MAX){
02162 tfdd.reverse = true;
02163
02164 i = TrainExitDir(ReverseDir(v->direction), v->u.rail.track);
02165 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02166 }
02167 } break;
02168 }
02169
02170 return tfdd;
02171 }
02172
02173 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02174 {
02175 TrainFindDepotData tfdd = FindClosestTrainDepot(this, 0);
02176 if (tfdd.best_length == UINT_MAX) return false;
02177
02178 if (location != NULL) *location = tfdd.tile;
02179 if (destination != NULL) *destination = GetDepotByTile(tfdd.tile)->index;
02180 if (reverse != NULL) *reverse = tfdd.reverse;
02181
02182 return true;
02183 }
02184
02193 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02194 {
02195 if (p2 & DEPOT_MASS_SEND) {
02196
02197 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02198 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02199 }
02200
02201 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02202
02203 Vehicle *v = GetVehicle(p1);
02204
02205 if (v->type != VEH_TRAIN) return CMD_ERROR;
02206
02207 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02208 }
02209
02210
02211 void OnTick_Train()
02212 {
02213 _age_cargo_skip_counter = (_age_cargo_skip_counter == 0) ? 184 : (_age_cargo_skip_counter - 1);
02214 }
02215
02216 static const int8 _vehicle_smoke_pos[8] = {
02217 1, 1, 1, 0, -1, -1, -1, 0
02218 };
02219
02220 static void HandleLocomotiveSmokeCloud(const Vehicle *v)
02221 {
02222 bool sound = false;
02223
02224 if (v->vehstatus & VS_TRAIN_SLOWING || v->load_unload_time_rem != 0 || v->cur_speed < 2) {
02225 return;
02226 }
02227
02228 const Vehicle *u = v;
02229
02230 do {
02231 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02232 int effect_offset = GB(v->u.rail.cached_vis_effect, 0, 4) - 8;
02233 byte effect_type = GB(v->u.rail.cached_vis_effect, 4, 2);
02234 bool disable_effect = HasBit(v->u.rail.cached_vis_effect, 6);
02235
02236
02237 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02238 disable_effect ||
02239 v->vehstatus & VS_HIDDEN) {
02240 continue;
02241 }
02242
02243
02244 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02245
02246
02247 if (!HasPowerOnRail(v->u.rail.railtype, GetTileRailType(v->tile))) continue;
02248
02249 if (effect_type == 0) {
02250
02251 effect_type = rvi->engclass;
02252 } else {
02253 effect_type--;
02254 }
02255
02256 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02257 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02258
02259 if (HasBit(v->u.rail.flags, VRF_REVERSE_DIRECTION)) {
02260 x = -x;
02261 y = -y;
02262 }
02263
02264 switch (effect_type) {
02265 case 0:
02266
02267 if (GB(v->tick_counter, 0, 4) == 0) {
02268 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02269 sound = true;
02270 }
02271 break;
02272
02273 case 1:
02274
02275 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02276 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02277 sound = true;
02278 }
02279 break;
02280
02281 case 2:
02282
02283 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02284 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02285 sound = true;
02286 }
02287 break;
02288
02289 default:
02290 break;
02291 }
02292 } while ((v = v->Next()) != NULL);
02293
02294 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02295 }
02296
02297 void Train::PlayLeaveStationSound() const
02298 {
02299 static const SoundFx sfx[] = {
02300 SND_04_TRAIN,
02301 SND_0A_TRAIN_HORN,
02302 SND_0A_TRAIN_HORN,
02303 SND_47_MAGLEV_2,
02304 SND_41_MAGLEV
02305 };
02306
02307 if (PlayVehicleSound(this, VSE_START)) return;
02308
02309 EngineID engtype = this->engine_type;
02310 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02311 }
02312
02314 static void CheckNextTrainTile(Vehicle *v)
02315 {
02316
02317 if (_settings_game.pf.path_backoff_interval == 255) return;
02318
02319
02320 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->u.rail.track & TRACK_BIT_DEPOT) return;
02321
02322 if (IsRailwayStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02323
02324 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02325
02326 Trackdir td = GetVehicleTrackdir(v);
02327
02328
02329 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02330 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02331 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02332
02333 CFollowTrackRail ft(v);
02334 if (!ft.Follow(v->tile, td)) return;
02335
02336 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02337
02338 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02339 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02340
02341 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02342 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
02343 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02344 }
02345 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02346 }
02347 }
02348 }
02349 }
02350
02351 static bool CheckTrainStayInDepot(Vehicle *v)
02352 {
02353
02354 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
02355 if (u->u.rail.track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02356 }
02357
02358
02359 if (v->u.rail.cached_power == 0) {
02360 v->vehstatus |= VS_STOPPED;
02361 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02362 return true;
02363 }
02364
02365 SigSegState seg_state;
02366
02367 if (v->u.rail.force_proceed == 0) {
02368
02369 if (++v->load_unload_time_rem < 37) {
02370 InvalidateWindowClasses(WC_TRAINS_LIST);
02371 return true;
02372 }
02373
02374 v->load_unload_time_rem = 0;
02375
02376 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02377 if (seg_state == SIGSEG_FULL || GetDepotWaypointReservation(v->tile)) {
02378
02379 InvalidateWindowClasses(WC_TRAINS_LIST);
02380 return true;
02381 }
02382 } else {
02383 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02384 }
02385
02386
02387 if (v->tile == v->dest_tile) {
02388
02389 if (GetDepotWaypointReservation(v->tile)) return true;
02390 SetDepotWaypointReservation(v->tile, true);
02391 VehicleEnterDepot(v);
02392 return true;
02393 }
02394
02395
02396 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->u.rail.force_proceed == 0) {
02397
02398 InvalidateWindowClasses(WC_TRAINS_LIST);
02399 MarkTrainAsStuck(v);
02400 return true;
02401 }
02402
02403 SetDepotWaypointReservation(v->tile, true);
02404 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02405
02406 VehicleServiceInDepot(v);
02407 InvalidateWindowClasses(WC_TRAINS_LIST);
02408 v->PlayLeaveStationSound();
02409
02410 v->u.rail.track = TRACK_BIT_X;
02411 if (v->direction & 2) v->u.rail.track = TRACK_BIT_Y;
02412
02413 v->vehstatus &= ~VS_HIDDEN;
02414 v->cur_speed = 0;
02415
02416 v->UpdateDeltaXY(v->direction);
02417 v->cur_image = v->GetImage(v->direction);
02418 VehicleMove(v, false);
02419 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02420 UpdateTrainAcceleration(v);
02421 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02422
02423 return false;
02424 }
02425
02427 static void ClearPathReservation(const Vehicle *v, TileIndex tile, Trackdir track_dir)
02428 {
02429 DiagDirection dir = TrackdirToExitdir(track_dir);
02430
02431 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02432
02433 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02434 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02435
02436 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02437
02438 SetTunnelBridgeReservation(tile, false);
02439 SetTunnelBridgeReservation(end, false);
02440
02441 if (_settings_client.gui.show_track_reservation) {
02442 MarkTileDirtyByTile(tile);
02443 MarkTileDirtyByTile(end);
02444 }
02445 }
02446 }
02447 } else if (IsRailwayStationTile(tile)) {
02448 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02449
02450
02451 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02452 SetRailwayStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02453 }
02454 } else {
02455
02456 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02457 }
02458 }
02459
02461 void FreeTrainTrackReservation(const Vehicle *v, TileIndex origin, Trackdir orig_td)
02462 {
02463 assert(IsFrontEngine(v));
02464
02465 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02466 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : GetVehicleTrackdir(v);
02467 bool free_tile = tile != v->tile || !(IsRailwayStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02468 StationID station_id = IsRailwayStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02469
02470
02471 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02472
02473 CFollowTrackRail ft(v, GetRailTypeInfo(v->u.rail.railtype)->compatible_railtypes);
02474 while (ft.Follow(tile, td)) {
02475 tile = ft.m_new_tile;
02476 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02477 td = RemoveFirstTrackdir(&bits);
02478 assert(bits == TRACKDIR_BIT_NONE);
02479
02480 if (!IsValidTrackdir(td)) break;
02481
02482 if (IsTileType(tile, MP_RAILWAY)) {
02483 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02484
02485 UnreserveRailTrack(tile, TrackdirToTrack(td));
02486 break;
02487 }
02488 if (HasPbsSignalOnTrackdir(tile, td)) {
02489 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02490
02491 break;
02492 } else {
02493
02494 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02495 MarkTileDirtyByTile(tile);
02496 }
02497 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02498 break;
02499 }
02500 }
02501
02502
02503 if (free_tile || (!(ft.m_is_station && GetStationIndex(ft.m_new_tile) == station_id) && !ft.m_is_tunnel && !ft.m_is_bridge)) ClearPathReservation(v, tile, td);
02504
02505 free_tile = true;
02506 }
02507 }
02508
02510 struct TrainTrackFollowerData {
02511 TileIndex dest_coords;
02512 StationID station_index;
02513 uint best_bird_dist;
02514 uint best_track_dist;
02515 TrackdirByte best_track;
02516 };
02517
02518 static bool NtpCallbFindStation(TileIndex tile, TrainTrackFollowerData *ttfd, Trackdir track, uint length)
02519 {
02520
02521 if (ttfd->dest_coords == 0) return false;
02522
02523
02524 if ((ttfd->station_index == INVALID_STATION && tile == ttfd->dest_coords) || (
02525 IsTileType(tile, MP_STATION) &&
02526 IsRailwayStation(tile) &&
02527 GetStationIndex(tile) == ttfd->station_index
02528 )) {
02529
02530
02531
02532
02533
02534 ttfd->best_track = track;
02535 ttfd->best_bird_dist = 0;
02536 return true;
02537 } else {
02538
02539 uint dist = DistanceManhattan(tile, ttfd->dest_coords);
02540 if (dist < ttfd->best_bird_dist) {
02541 ttfd->best_bird_dist = dist;
02542 ttfd->best_track = track;
02543 }
02544 return false;
02545 }
02546 }
02547
02548 static void FillWithStationData(TrainTrackFollowerData *fd, const Vehicle *v)
02549 {
02550 fd->dest_coords = v->dest_tile;
02551 fd->station_index = v->current_order.IsType(OT_GOTO_STATION) ? v->current_order.GetDestination() : INVALID_STATION;
02552 }
02553
02554 static const byte _initial_tile_subcoord[6][4][3] = {
02555 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02556 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02557 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02558 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02559 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02560 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02561 };
02562
02563 static const byte _search_directions[6][4] = {
02564 { 0, 9, 2, 9 },
02565 { 9, 1, 9, 3 },
02566 { 9, 0, 3, 9 },
02567 { 1, 9, 9, 2 },
02568 { 3, 2, 9, 9 },
02569 { 9, 9, 1, 0 },
02570 };
02571
02572 static const byte _pick_track_table[6] = {1, 3, 2, 2, 0, 0};
02573
02586 static Track DoTrainPathfind(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02587 {
02588 Track best_track;
02589
02590 #ifdef PF_BENCHMARK
02591 TIC()
02592 #endif
02593
02594 if (path_not_found) *path_not_found = false;
02595
02596 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02597 if (do_track_reservation && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02598
02599 switch (pathfinder) {
02600 case VPF_YAPF: {
02601 Trackdir trackdir = YapfChooseRailTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02602 if (trackdir != INVALID_TRACKDIR) {
02603 best_track = TrackdirToTrack(trackdir);
02604 } else {
02605 best_track = FindFirstTrack(tracks);
02606 }
02607 } break;
02608
02609 case VPF_NPF: {
02610 void *perf = NpfBeginInterval();
02611
02612 NPFFindStationOrTileData fstd;
02613 NPFFillWithOrderData(&fstd, v, do_track_reservation);
02614
02615 PBSTileInfo origin = FollowTrainReservation(v);
02616 assert(IsValidTrackdir(origin.trackdir));
02617
02618 NPFFoundTargetData ftd = NPFRouteToStationOrTile(origin.tile, origin.trackdir, true, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
02619
02620 if (dest != NULL) {
02621 dest->tile = ftd.node.tile;
02622 dest->trackdir = (Trackdir)ftd.node.direction;
02623 dest->okay = ftd.res_okay;
02624 }
02625
02626 if (ftd.best_trackdir == INVALID_TRACKDIR) {
02627
02628
02629
02630 best_track = FindFirstTrack(tracks);
02631 } else {
02632
02633
02634
02635
02636 if (ftd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02637
02638 best_track = TrackdirToTrack(ftd.best_trackdir);
02639 }
02640
02641 int time = NpfEndInterval(perf);
02642 DEBUG(yapf, 4, "[NPFT] %d us - %d rounds - %d open - %d closed -- ", time, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
02643 } break;
02644
02645 default:
02646 case VPF_NTP: {
02647 void *perf = NpfBeginInterval();
02648
02649 TrainTrackFollowerData fd;
02650 FillWithStationData(&fd, v);
02651
02652
02653 fd.best_bird_dist = UINT_MAX;
02654 fd.best_track_dist = UINT_MAX;
02655 fd.best_track = INVALID_TRACKDIR;
02656
02657 NewTrainPathfind(tile - TileOffsByDiagDir(enterdir), v->dest_tile,
02658 v->u.rail.compatible_railtypes, enterdir, (NTPEnumProc*)NtpCallbFindStation, &fd);
02659
02660
02661 if (fd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02662
02663 if (fd.best_track == INVALID_TRACKDIR) {
02664
02665 best_track = FindFirstTrack(tracks);
02666 } else {
02667 best_track = TrackdirToTrack(fd.best_track);
02668 }
02669
02670 int time = NpfEndInterval(perf);
02671 DEBUG(yapf, 4, "[NTPT] %d us - %d rounds - %d open - %d closed -- ", time, 0, 0, 0);
02672 } break;
02673 }
02674
02675 #ifdef PF_BENCHMARK
02676 TOC("PF time = ", 1)
02677 #endif
02678
02679 return best_track;
02680 }
02681
02687 static PBSTileInfo ExtendTrainReservation(const Vehicle *v, TrackBits *new_tracks, DiagDirection *enterdir)
02688 {
02689 bool no_90deg_turns = _settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg;
02690 PBSTileInfo origin = FollowTrainReservation(v);
02691
02692 CFollowTrackRail ft(v);
02693
02694 TileIndex tile = origin.tile;
02695 Trackdir cur_td = origin.trackdir;
02696 while (ft.Follow(tile, cur_td)) {
02697 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02698
02699 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02700 }
02701
02702 if (no_90deg_turns) {
02703 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02704 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02705 }
02706
02707
02708 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRailTile(ft.m_new_tile));
02709 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02710
02711
02712
02713
02714
02715
02716 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02717
02718
02719
02720 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02721
02722
02723 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02724 if (enterdir) *enterdir = ft.m_exitdir;
02725 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02726 }
02727
02728 tile = ft.m_new_tile;
02729 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02730
02731 if (IsSafeWaitingPosition(v, tile, cur_td, true, no_90deg_turns)) {
02732 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, no_90deg_turns);
02733 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02734
02735 return PBSTileInfo(tile, cur_td, true);
02736 }
02737
02738 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02739 }
02740
02741 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02742
02743 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02744 }
02745
02746
02747 tile = origin.tile;
02748 cur_td = origin.trackdir;
02749 TileIndex stopped = ft.m_old_tile;
02750 Trackdir stopped_td = ft.m_old_td;
02751 while (tile != stopped || cur_td != stopped_td) {
02752 if (!ft.Follow(tile, cur_td)) break;
02753
02754 if (no_90deg_turns) {
02755 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02756 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02757 }
02758 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02759
02760 tile = ft.m_new_tile;
02761 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02762
02763 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02764 }
02765
02766
02767 return PBSTileInfo();
02768 }
02769
02780 static bool TryReserveSafeTrack(const Vehicle *v, TileIndex tile, Trackdir td, bool override_tailtype)
02781 {
02782 if (_settings_game.pf.pathfinder_for_trains == VPF_YAPF) {
02783 return YapfRailFindNearestSafeTile(v, tile, td, override_tailtype);
02784 } else {
02785 return NPFRouteToSafeTile(v, tile, td, override_tailtype).res_okay;
02786 }
02787 }
02788
02790 class VehicleOrderSaver
02791 {
02792 private:
02793 Vehicle *v;
02794 Order old_order;
02795 TileIndex old_dest_tile;
02796 StationID old_last_station_visited;
02797 VehicleOrderID index;
02798
02799 public:
02800 VehicleOrderSaver(Vehicle *_v) :
02801 v(_v),
02802 old_order(_v->current_order),
02803 old_dest_tile(_v->dest_tile),
02804 old_last_station_visited(_v->last_station_visited),
02805 index(_v->cur_order_index)
02806 {
02807 }
02808
02809 ~VehicleOrderSaver()
02810 {
02811 this->v->current_order = this->old_order;
02812 this->v->dest_tile = this->old_dest_tile;
02813 this->v->last_station_visited = this->old_last_station_visited;
02814 }
02815
02821 bool SwitchToNextOrder(bool skip_first)
02822 {
02823 if (this->v->GetNumOrders() == 0) return false;
02824
02825 if (skip_first) ++this->index;
02826
02827 int conditional_depth = 0;
02828
02829 do {
02830
02831 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02832
02833 Order *order = GetVehicleOrder(this->v, this->index);
02834 assert(order != NULL);
02835
02836 switch (order->GetType()) {
02837 case OT_GOTO_DEPOT:
02838
02839 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02840 case OT_GOTO_STATION:
02841 case OT_GOTO_WAYPOINT:
02842 this->v->current_order = *order;
02843 UpdateOrderDest(this->v, order);
02844 return true;
02845 case OT_CONDITIONAL: {
02846 if (conditional_depth > this->v->GetNumOrders()) return false;
02847 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02848 if (next != INVALID_VEH_ORDER_ID) {
02849 conditional_depth++;
02850 this->index = next;
02851
02852 continue;
02853 }
02854 break;
02855 }
02856 default:
02857 break;
02858 }
02859
02860
02861 ++this->index;
02862 } while (this->index != this->v->cur_order_index);
02863
02864 return false;
02865 }
02866 };
02867
02868
02869 static Track ChooseTrainTrack(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02870 {
02871 Track best_track = INVALID_TRACK;
02872 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02873 bool changed_signal = false;
02874
02875 assert((tracks & ~TRACK_BIT_MASK) == 0);
02876
02877 if (got_reservation != NULL) *got_reservation = false;
02878
02879
02880 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02881
02882 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02883
02884
02885 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02886 Track track = FindFirstTrack(tracks);
02887
02888 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02889 do_track_reservation = true;
02890 changed_signal = true;
02891 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02892 } else if (!do_track_reservation) {
02893 return track;
02894 }
02895 best_track = track;
02896 }
02897
02898 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02899 DiagDirection dest_enterdir = enterdir;
02900 if (do_track_reservation) {
02901
02902
02903
02904 CheckIfTrainNeedsService(v);
02905 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02906
02907 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02908 if (res_dest.tile == INVALID_TILE) {
02909
02910 if (mark_stuck) MarkTrainAsStuck(v);
02911 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02912 return FindFirstTrack(tracks);
02913 }
02914 }
02915
02916
02917 VehicleOrderSaver orders(v);
02918
02919
02920
02921
02922
02923
02924
02925 if (v->current_order.IsType(OT_LEAVESTATION)) {
02926 orders.SwitchToNextOrder(false);
02927 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02928 v->current_order.IsType(OT_GOTO_STATION) ?
02929 IsRailwayStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02930 v->tile == v->dest_tile))) {
02931 orders.SwitchToNextOrder(true);
02932 }
02933
02934 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02935
02936 bool path_not_found = false;
02937 TileIndex new_tile = res_dest.tile;
02938
02939 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02940 if (new_tile == tile) best_track = next_track;
02941
02942
02943 if (path_not_found) {
02944
02945 if (!HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02946
02947 SetBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02948
02949 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02950 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02951 SetDParam(0, v->index);
02952 AddNewsItem(
02953 STR_TRAIN_IS_LOST,
02954 NS_ADVICE,
02955 v->index,
02956 0);
02957 }
02958 }
02959 } else {
02960
02961 if (HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02962
02963 ClrBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02964
02965 }
02966 }
02967 }
02968
02969
02970 if (!do_track_reservation) return best_track;
02971
02972
02973 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02974 if (mark_stuck) MarkTrainAsStuck(v);
02975 FreeTrainTrackReservation(v);
02976 return best_track;
02977 }
02978
02979
02980 if (res_dest.tile == INVALID_TILE) {
02981
02982 PBSTileInfo origin = FollowTrainReservation(v);
02983 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02984 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02985 best_track = FindFirstTrack(res);
02986 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
02987 if (got_reservation != NULL) *got_reservation = true;
02988 if (changed_signal) MarkTileDirtyByTile(tile);
02989 } else {
02990 FreeTrainTrackReservation(v);
02991 if (mark_stuck) MarkTrainAsStuck(v);
02992 }
02993 return best_track;
02994 }
02995
02996 if (got_reservation != NULL) *got_reservation = true;
02997
02998
02999 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
03000
03001 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
03002 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
03003 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
03004 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
03005 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
03006 }
03007
03008
03009 if (orders.SwitchToNextOrder(true)) {
03010 PBSTileInfo cur_dest;
03011 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
03012 if (cur_dest.tile != INVALID_TILE) {
03013 res_dest = cur_dest;
03014 if (res_dest.okay) continue;
03015
03016 FreeTrainTrackReservation(v);
03017 if (mark_stuck) MarkTrainAsStuck(v);
03018 if (got_reservation != NULL) *got_reservation = false;
03019 changed_signal = false;
03020 break;
03021 }
03022 }
03023
03024 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
03025 FreeTrainTrackReservation(v);
03026 if (mark_stuck) MarkTrainAsStuck(v);
03027 if (got_reservation != NULL) *got_reservation = false;
03028 changed_signal = false;
03029 }
03030 break;
03031 }
03032
03033 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
03034
03035 if (changed_signal) MarkTileDirtyByTile(tile);
03036
03037 return best_track;
03038 }
03039
03048 bool TryPathReserve(Vehicle *v, bool mark_as_stuck, bool first_tile_okay)
03049 {
03050 assert(v->type == VEH_TRAIN && IsFrontEngine(v));
03051
03052
03053
03054
03055 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03056 if (GetDepotWaypointReservation(v->tile)) {
03057 if (mark_as_stuck) MarkTrainAsStuck(v);
03058 return false;
03059 } else {
03060
03061 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
03062 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
03063 }
03064 }
03065
03066
03067 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
03068 TileIndex next_tile = TileAddByDiagDir(v->tile, dir);
03069 if (IsTileType(next_tile, MP_RAILWAY) && HasReservedTracks(next_tile, DiagdirReachesTracks(dir))) {
03070
03071 Trackdir td = FindFirstTrackdir(TrackBitsToTrackdirBits(GetReservedTrackbits(next_tile)) & DiagdirReachesTrackdirs(dir));
03072 if (HasSignalOnTrackdir(next_tile, td) && HasSignalOnTrackdir(next_tile, ReverseTrackdir(td)) &&
03073 !IsPbsSignal(GetSignalType(next_tile, TrackdirToTrack(td)))) {
03074
03075 if (mark_as_stuck) MarkTrainAsStuck(v);
03076 return false;
03077 }
03078 }
03079
03080 bool other_train = false;
03081 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
03082
03083 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
03084
03085 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03086 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03087 return true;
03088 }
03089
03090
03091
03092
03093 if (other_train && v->tile != origin.tile) {
03094 if (mark_as_stuck) MarkTrainAsStuck(v);
03095 return false;
03096 }
03097
03098
03099 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03100 SetDepotWaypointReservation(v->tile, true);
03101 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
03102 }
03103
03104 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
03105 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
03106 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
03107
03108 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
03109
03110 bool res_made = false;
03111 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
03112
03113 if (!res_made) {
03114
03115 if (v->u.rail.track & TRACK_BIT_DEPOT) SetDepotWaypointReservation(v->tile, false);
03116 return false;
03117 }
03118
03119 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03120 v->load_unload_time_rem = 0;
03121 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03122 }
03123 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03124 return true;
03125 }
03126
03127
03128 static bool CheckReverseTrain(Vehicle *v)
03129 {
03130 if (_settings_game.difficulty.line_reverse_mode != 0 ||
03131 v->u.rail.track == TRACK_BIT_DEPOT || v->u.rail.track == TRACK_BIT_WORMHOLE ||
03132 !(v->direction & 1)) {
03133 return false;
03134 }
03135
03136 uint reverse_best = 0;
03137
03138 assert(v->u.rail.track);
03139
03140 switch (_settings_game.pf.pathfinder_for_trains) {
03141 case VPF_YAPF:
03142 reverse_best = YapfCheckReverseTrain(v);
03143 break;
03144
03145 case VPF_NPF: {
03146 NPFFindStationOrTileData fstd;
03147 NPFFoundTargetData ftd;
03148 Vehicle *last = GetLastVehicleInChain(v);
03149
03150 NPFFillWithOrderData(&fstd, v);
03151
03152 Trackdir trackdir = GetVehicleTrackdir(v);
03153 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
03154 assert(trackdir != INVALID_TRACKDIR);
03155 assert(trackdir_rev != INVALID_TRACKDIR);
03156
03157 ftd = NPFRouteToStationOrTileTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
03158 if (ftd.best_bird_dist != 0) {
03159
03160 reverse_best = false;
03161 } else {
03162 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) {
03163 reverse_best = true;
03164 } else {
03165 reverse_best = false;
03166 }
03167 }
03168 } break;
03169
03170 default:
03171 case VPF_NTP: {
03172 TrainTrackFollowerData fd;
03173 FillWithStationData(&fd, v);
03174
03175 int i = _search_directions[FindFirstTrack(v->u.rail.track)][DirToDiagDir(v->direction)];
03176
03177 int best_track = -1;
03178 uint reverse = 0;
03179 uint best_bird_dist = 0;
03180 uint best_track_dist = 0;
03181
03182 for (;;) {
03183 fd.best_bird_dist = UINT_MAX;
03184 fd.best_track_dist = UINT_MAX;
03185
03186 NewTrainPathfind(v->tile, v->dest_tile, v->u.rail.compatible_railtypes, (DiagDirection)(reverse ^ i), (NTPEnumProc*)NtpCallbFindStation, &fd);
03187
03188 if (best_track != -1) {
03189 if (best_bird_dist != 0) {
03190 if (fd.best_bird_dist != 0) {
03191
03192 if (fd.best_bird_dist > best_bird_dist) goto bad;
03193 if (fd.best_bird_dist < best_bird_dist) goto good;
03194 } else {
03195
03196 goto good;
03197 }
03198 } else {
03199 if (fd.best_bird_dist != 0) {
03200
03201 goto bad;
03202 } else {
03203
03204 if (fd.best_track_dist > best_track_dist) goto bad;
03205 if (fd.best_track_dist < best_track_dist) goto good;
03206 }
03207 }
03208
03209
03210
03211 int r = GB(Random(), 0, 8);
03212 if (_pick_track_table[i] == (v->direction & 3)) r += 80;
03213 if (_pick_track_table[best_track] == (v->direction & 3)) r -= 80;
03214 if (r <= 127) goto bad;
03215 }
03216 good:;
03217 best_track = i;
03218 best_bird_dist = fd.best_bird_dist;
03219 best_track_dist = fd.best_track_dist;
03220 reverse_best = reverse;
03221 bad:;
03222 if (reverse != 0) break;
03223 reverse = 2;
03224 }
03225 } break;
03226 }
03227
03228 return reverse_best != 0;
03229 }
03230
03231 TileIndex Train::GetOrderStationLocation(StationID station)
03232 {
03233 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
03234
03235 const Station *st = GetStation(station);
03236 if (!(st->facilities & FACIL_TRAIN)) {
03237
03238 this->cur_order_index++;
03239 return 0;
03240 }
03241
03242 return st->xy;
03243 }
03244
03245 void Train::MarkDirty()
03246 {
03247 Vehicle *v = this;
03248 do {
03249 v->cur_image = v->GetImage(v->direction);
03250 MarkSingleVehicleDirty(v);
03251 } while ((v = v->Next()) != NULL);
03252
03253
03254 TrainCargoChanged(this);
03255 UpdateTrainAcceleration(this);
03256 }
03257
03268 static int UpdateTrainSpeed(Vehicle *v)
03269 {
03270 uint accel;
03271
03272 if (v->vehstatus & VS_STOPPED || HasBit(v->u.rail.flags, VRF_REVERSING) || HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03273 switch (_settings_game.vehicle.train_acceleration_model) {
03274 default: NOT_REACHED();
03275 case TAM_ORIGINAL: accel = v->acceleration * -4; break;
03276 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_BRAKE); break;
03277 }
03278 } else {
03279 switch (_settings_game.vehicle.train_acceleration_model) {
03280 default: NOT_REACHED();
03281 case TAM_ORIGINAL: accel = v->acceleration * 2; break;
03282 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_ACCEL); break;
03283 }
03284 }
03285
03286 uint spd = v->subspeed + accel;
03287 v->subspeed = (byte)spd;
03288 {
03289 int tempmax = v->max_speed;
03290 if (v->cur_speed > v->max_speed)
03291 tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
03292 v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
03293 }
03294
03295
03296
03297
03298
03299
03300
03301
03302
03303
03304
03305
03306 int scaled_spd = spd * 3 >> 2;
03307
03308 scaled_spd += v->progress;
03309 v->progress = 0;
03310 return scaled_spd;
03311 }
03312
03313 static void TrainEnterStation(Vehicle *v, StationID station)
03314 {
03315 v->last_station_visited = station;
03316
03317
03318 Station *st = GetStation(station);
03319 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
03320 st->had_vehicle_of_type |= HVOT_TRAIN;
03321 SetDParam(0, st->index);
03322 AddNewsItem(
03323 STR_8801_CITIZENS_CELEBRATE_FIRST,
03324 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
03325 v->index,
03326 st->index
03327 );
03328 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
03329 }
03330
03331 v->BeginLoading();
03332
03333 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03334 }
03335
03336 static byte AfterSetTrainPos(Vehicle *v, bool new_tile)
03337 {
03338 byte old_z = v->z_pos;
03339 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03340
03341 if (new_tile) {
03342 ClrBit(v->u.rail.flags, VRF_GOINGUP);
03343 ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
03344
03345 if (v->u.rail.track == TRACK_BIT_X || v->u.rail.track == TRACK_BIT_Y) {
03346
03347
03348
03349
03350
03351 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03352 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03353
03354 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03355
03356
03357
03358 if (middle_z != v->z_pos && !IsTunnelTile(TileVirtXY(v->x_pos, v->y_pos))) {
03359 SetBit(v->u.rail.flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03360 }
03361 }
03362 }
03363
03364 VehicleMove(v, true);
03365 return old_z;
03366 }
03367
03368 static const Direction _new_vehicle_direction_table[11] = {
03369 DIR_N , DIR_NW, DIR_W , INVALID_DIR,
03370 DIR_NE, DIR_N , DIR_SW, INVALID_DIR,
03371 DIR_E , DIR_SE, DIR_S
03372 };
03373
03374 static inline Direction GetNewVehicleDirectionByTile(TileIndex new_tile, TileIndex old_tile)
03375 {
03376 uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
03377 TileX(new_tile) - TileX(old_tile) + 1;
03378 assert(offs < 11);
03379 return _new_vehicle_direction_table[offs];
03380 }
03381
03382 static inline int GetDirectionToVehicle(const Vehicle *v, int x, int y)
03383 {
03384 byte offs;
03385
03386 x -= v->x_pos;
03387 if (x >= 0) {
03388 offs = (x > 2) ? 0 : 1;
03389 } else {
03390 offs = (x < -2) ? 2 : 1;
03391 }
03392
03393 y -= v->y_pos;
03394 if (y >= 0) {
03395 offs += ((y > 2) ? 0 : 1) * 4;
03396 } else {
03397 offs += ((y < -2) ? 2 : 1) * 4;
03398 }
03399
03400 assert(offs < 11);
03401 return _new_vehicle_direction_table[offs];
03402 }
03403
03404
03405 static inline bool CheckCompatibleRail(const Vehicle *v, TileIndex tile)
03406 {
03407 return
03408 IsTileOwner(tile, v->owner) && (
03409 !IsFrontEngine(v) ||
03410 HasBit(v->u.rail.compatible_railtypes, GetRailType(tile))
03411 );
03412 }
03413
03414 struct RailtypeSlowdownParams {
03415 byte small_turn, large_turn;
03416 byte z_up;
03417 byte z_down;
03418 };
03419
03420 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03421
03422 {256 / 4, 256 / 2, 256 / 4, 2},
03423 {256 / 4, 256 / 2, 256 / 4, 2},
03424 {256 / 4, 256 / 2, 256 / 4, 2},
03425 {0, 256 / 2, 256 / 4, 2},
03426 };
03427
03429 static inline void AffectSpeedByDirChange(Vehicle *v, Direction new_dir)
03430 {
03431 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03432
03433 DirDiff diff = DirDifference(v->direction, new_dir);
03434 if (diff == DIRDIFF_SAME) return;
03435
03436 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03437 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03438 }
03439
03441 static inline void AffectSpeedByZChange(Vehicle *v, byte old_z)
03442 {
03443 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03444
03445 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03446
03447 if (old_z < v->z_pos) {
03448 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03449 } else {
03450 uint16 spd = v->cur_speed + rsp->z_down;
03451 if (spd <= v->max_speed) v->cur_speed = spd;
03452 }
03453 }
03454
03455 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03456 {
03457 if (IsTileType(tile, MP_RAILWAY) &&
03458 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03459 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03460 Trackdir trackdir = FindFirstTrackdir(tracks);
03461 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03462
03463 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03464 }
03465 }
03466 return false;
03467 }
03468
03469
03470 static void SetVehicleCrashed(Vehicle *v)
03471 {
03472 if (v->u.rail.crash_anim_pos != 0) return;
03473
03474
03475 if (IsFrontEngine(v)) {
03476
03477
03478 FreeTrainTrackReservation(v);
03479 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
03480 ClearPathReservation(u, u->tile, GetVehicleTrackdir(u));
03481 if (IsTileType(u->tile, MP_TUNNELBRIDGE)) {
03482
03483
03484 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(u->tile), false);
03485 }
03486 }
03487 }
03488
03489
03490 TileIndex crossing = TrainApproachingCrossingTile(v);
03491
03492 v->u.rail.crash_anim_pos++;
03493
03494 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03495 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
03496
03497 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03498 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
03499 }
03500
03501 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
03502
03503 for (; v != NULL; v = v->Next()) {
03504 v->vehstatus |= VS_CRASHED;
03505 MarkSingleVehicleDirty(v);
03506 }
03507
03508
03509 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03510 }
03511
03512 static uint CountPassengersInTrain(const Vehicle *v)
03513 {
03514 uint num = 0;
03515
03516 for (; v != NULL; v = v->Next()) {
03517 if (IsCargoInClass(v->cargo_type, CC_PASSENGERS)) num += v->cargo.Count();
03518 }
03519
03520 return num;
03521 }
03522
03529 static uint TrainCrashed(Vehicle *v)
03530 {
03531
03532 if (v->vehstatus & VS_CRASHED) return 0;
03533
03534
03535 uint num = 2 + CountPassengersInTrain(v);
03536
03537 SetVehicleCrashed(v);
03538 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03539
03540 return num;
03541 }
03542
03543 struct TrainCollideChecker {
03544 Vehicle *v;
03545 uint num;
03546 };
03547
03548 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03549 {
03550 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03551
03552 if (v->type != VEH_TRAIN) return NULL;
03553
03554
03555 Vehicle *coll = v->First();
03556
03557
03558 if (coll != tcc->v && v->u.rail.track != TRACK_BIT_DEPOT && abs(v->z_pos - tcc->v->z_pos) < 6) {
03559 int x_diff = v->x_pos - tcc->v->x_pos;
03560 int y_diff = v->y_pos - tcc->v->y_pos;
03561
03562
03563 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03564
03565
03566 tcc->num += TrainCrashed(tcc->v);
03567 tcc->num += TrainCrashed(coll);
03568
03569
03570
03571 const Vehicle *u;
03572 FOR_ALL_VEHICLES(u) {
03573 if (u->type == VEH_TRAIN && HASBITS(u->vehstatus, VS_CRASHED) && (u->u.rail.track & TRACK_BIT_DEPOT) == TRACK_BIT_NONE) {
03574 TrackBits trackbits = u->u.rail.track;
03575 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03576
03577 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(u->tile));
03578 }
03579 TryReserveRailTrack(u->tile, TrackBitsToTrack(trackbits));
03580 }
03581 }
03582 }
03583
03584 return NULL;
03585 }
03586
03593 static bool CheckTrainCollision(Vehicle *v)
03594 {
03595
03596 if (v->u.rail.track == TRACK_BIT_DEPOT) return false;
03597
03598 assert(v->u.rail.track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03599
03600 TrainCollideChecker tcc;
03601 tcc.v = v;
03602 tcc.num = 0;
03603
03604
03605 if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
03606 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03607 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03608 } else {
03609 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03610 }
03611
03612
03613 if (tcc.num == 0) return false;
03614
03615 SetDParam(0, tcc.num);
03616 AddNewsItem(STR_8868_TRAIN_CRASH_DIE_IN_FIREBALL,
03617 NS_ACCIDENT_VEHICLE,
03618 v->index,
03619 0
03620 );
03621
03622 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03623 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03624 return true;
03625 }
03626
03627 static Vehicle *CheckVehicleAtSignal(Vehicle *v, void *data)
03628 {
03629 DiagDirection exitdir = *(DiagDirection *)data;
03630
03631
03632 if (v->type == VEH_TRAIN && IsFrontEngine(v) && (v->u.rail.track & TRACK_BIT_MASK) != 0 && !(v->vehstatus & VS_CRASHED)) {
03633 if (v->cur_speed <= 5 && TrainExitDir(v->direction, v->u.rail.track) == exitdir) return v;
03634 }
03635
03636 return NULL;
03637 }
03638
03639 static void TrainController(Vehicle *v, Vehicle *nomove)
03640 {
03641 Vehicle *prev;
03642
03643
03644 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03645 DiagDirection enterdir = DIAGDIR_BEGIN;
03646 bool update_signals_crossing = false;
03647
03648 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03649 if (v->u.rail.track != TRACK_BIT_WORMHOLE) {
03650
03651 if (gp.old_tile == gp.new_tile) {
03652
03653 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03654
03655 gp.x = v->x_pos;
03656 gp.y = v->y_pos;
03657 } else {
03658
03659
03660
03661 if (IsFrontEngine(v) && !TrainCheckIfLineEnds(v)) return;
03662
03663 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03664 if (HasBit(r, VETS_CANNOT_ENTER)) {
03665 goto invalid_rail;
03666 }
03667 if (HasBit(r, VETS_ENTERED_STATION)) {
03668
03669 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03670 }
03671 }
03672 } else {
03673
03674
03675
03676 Direction dir = GetNewVehicleDirectionByTile(gp.new_tile, gp.old_tile);
03677 enterdir = DirToDiagDir(dir);
03678 assert(IsValidDiagDirection(enterdir));
03679
03680
03681
03682 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03683 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03684
03685 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03686 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03687
03688 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03689 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg && prev == NULL) {
03690
03691
03692 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
03693 }
03694
03695 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03696
03697
03698
03699 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03700
03701 TrackBits chosen_track;
03702 if (prev == NULL) {
03703
03704
03705 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03706 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03707
03708
03709 if (red_signals & chosen_track && v->u.rail.force_proceed == 0) {
03710
03711 Trackdir i = FindFirstTrackdir(trackdirbits);
03712
03713
03714 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) return;
03715
03716 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03717 v->cur_speed = 0;
03718 v->subspeed = 0;
03719 v->progress = 255 - 100;
03720 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_oneway_signal * 20) return;
03721 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03722 v->cur_speed = 0;
03723 v->subspeed = 0;
03724 v->progress = 255 - 10;
03725 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_twoway_signal * 73) {
03726 DiagDirection exitdir = TrackdirToExitdir(i);
03727 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03728
03729 exitdir = ReverseDiagDir(exitdir);
03730
03731
03732 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckVehicleAtSignal)) return;
03733 }
03734 }
03735
03736
03737
03738 if (_settings_game.pf.wait_for_pbs_path == 255 && UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03739 v->load_unload_time_rem = 0;
03740 return;
03741 }
03742 goto reverse_train_direction;
03743 } else {
03744 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03745 }
03746 } else {
03747 static const TrackBits _matching_tracks[8] = {
03748 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03749 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y,
03750 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03751 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y
03752 };
03753
03754
03755 chosen_track = (TrackBits)(byte)(_matching_tracks[GetDirectionToVehicle(prev, gp.x, gp.y)] & bits);
03756 }
03757
03758
03759 assert(
03760 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03761 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03762 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03763
03764
03765 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03766 gp.x = (gp.x & ~0xF) | b[0];
03767 gp.y = (gp.y & ~0xF) | b[1];
03768 Direction chosen_dir = (Direction)b[2];
03769
03770
03771 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03772 if (HasBit(r, VETS_CANNOT_ENTER)) {
03773 goto invalid_rail;
03774 }
03775
03776 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03777 Track track = FindFirstTrack(chosen_track);
03778 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03779 if (IsFrontEngine(v) && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03780 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03781 MarkTileDirtyByTile(gp.new_tile);
03782 }
03783
03784
03785 if (v->Next() == NULL) ClearPathReservation(v, v->tile, GetVehicleTrackdir(v));
03786
03787 v->tile = gp.new_tile;
03788
03789 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03790 TrainPowerChanged(v->First());
03791 }
03792
03793 v->u.rail.track = chosen_track;
03794 assert(v->u.rail.track);
03795 }
03796
03797
03798
03799 update_signals_crossing = true;
03800
03801 if (prev == NULL) AffectSpeedByDirChange(v, chosen_dir);
03802
03803 v->direction = chosen_dir;
03804
03805 if (IsFrontEngine(v)) {
03806 v->load_unload_time_rem = 0;
03807
03808
03809 TileIndex crossing = TrainApproachingCrossingTile(v);
03810 if (crossing != INVALID_TILE && GetCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03811
03812
03813 CheckNextTrainTile(v);
03814 }
03815 }
03816 } else {
03817
03818
03819
03820 if (!(v->vehstatus & VS_HIDDEN)) {
03821 v->cur_speed =
03822 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03823 }
03824
03825 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03826
03827 if (IsFrontEngine(v)) {
03828 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03829 CheckNextTrainTile(v);
03830 }
03831 } else {
03832 v->x_pos = gp.x;
03833 v->y_pos = gp.y;
03834 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03835 continue;
03836 }
03837 }
03838
03839
03840 v->UpdateDeltaXY(v->direction);
03841
03842 v->x_pos = gp.x;
03843 v->y_pos = gp.y;
03844
03845
03846 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03847
03848 if (prev == NULL) {
03849
03850 AffectSpeedByZChange(v, old_z);
03851 }
03852
03853 if (update_signals_crossing) {
03854 if (IsFrontEngine(v)) {
03855 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03856
03857
03858
03859
03860
03861
03862
03863
03864 if ((!HasReservedTracks(gp.new_tile, v->u.rail.track) &&
03865 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->u.rail.track))) ||
03866 !TryPathReserve(v)) {
03867 MarkTrainAsStuck(v);
03868 }
03869 }
03870 }
03871
03872
03873
03874 if (v->Next() == NULL) {
03875 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03876 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03877 }
03878 }
03879
03880
03881 if (IsFrontEngine(v) && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03882 }
03883 return;
03884
03885 invalid_rail:
03886
03887 if (prev != NULL) error("Disconnecting train");
03888
03889 reverse_train_direction:
03890 v->load_unload_time_rem = 0;
03891 v->cur_speed = 0;
03892 v->subspeed = 0;
03893 ReverseTrainDirection(v);
03894 }
03895
03901 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03902 {
03903 TrackBits *trackbits = (TrackBits *)data;
03904
03905 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03906 if ((v->u.rail.track & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03907
03908 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03909 } else {
03910 *trackbits |= v->u.rail.track;
03911 }
03912 }
03913
03914 return NULL;
03915 }
03916
03924 static void DeleteLastWagon(Vehicle *v)
03925 {
03926 Vehicle *first = v->First();
03927
03928
03929
03930
03931 Vehicle *u = v;
03932 for (; v->Next() != NULL; v = v->Next()) u = v;
03933 u->SetNext(NULL);
03934
03935 if (first != v) {
03936
03937 TrainConsistChanged(first, false);
03938
03939
03940 if (first->u.rail.track == TRACK_BIT_DEPOT) {
03941 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
03942 }
03943 }
03944
03945
03946 TrackBits trackbits = v->u.rail.track;
03947 TileIndex tile = v->tile;
03948 Owner owner = v->owner;
03949
03950 delete v;
03951 v = NULL;
03952
03953 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03954
03955 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03956 }
03957
03958 Track track = TrackBitsToTrack(trackbits);
03959 if (HasReservedTracks(tile, trackbits)) {
03960 UnreserveRailTrack(tile, track);
03961
03962
03963 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03964 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03965
03966
03967 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03968 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03969 if (HasBit(remaining_trackbits, t)) {
03970 TryReserveRailTrack(tile, t);
03971 }
03972 }
03973 }
03974
03975
03976 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03977
03978
03979 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03980 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03981 } else {
03982 SetSignalsOnBothDir(tile, track, owner);
03983 }
03984 }
03985
03986 static void ChangeTrainDirRandomly(Vehicle *v)
03987 {
03988 static const DirDiff delta[] = {
03989 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03990 };
03991
03992 do {
03993
03994 if (!(v->vehstatus & VS_HIDDEN)) {
03995 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03996 v->UpdateDeltaXY(v->direction);
03997 v->cur_image = v->GetImage(v->direction);
03998
03999
04000
04001 if (v->u.rail.track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
04002 }
04003 } while ((v = v->Next()) != NULL);
04004 }
04005
04006 static void HandleCrashedTrain(Vehicle *v)
04007 {
04008 int state = ++v->u.rail.crash_anim_pos;
04009
04010 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
04011 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
04012 }
04013
04014 uint32 r;
04015 if (state <= 200 && Chance16R(1, 7, r)) {
04016 int index = (r * 10 >> 16);
04017
04018 Vehicle *u = v;
04019 do {
04020 if (--index < 0) {
04021 r = Random();
04022
04023 CreateEffectVehicleRel(u,
04024 GB(r, 8, 3) + 2,
04025 GB(r, 16, 3) + 2,
04026 GB(r, 0, 3) + 5,
04027 EV_EXPLOSION_SMALL);
04028 break;
04029 }
04030 } while ((u = u->Next()) != NULL);
04031 }
04032
04033 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
04034
04035 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
04036 DeleteLastWagon(v);
04037 InvalidateWindow(WC_REPLACE_VEHICLE, (v->group_id << 16) | VEH_TRAIN);
04038 }
04039 }
04040
04041 static void HandleBrokenTrain(Vehicle *v)
04042 {
04043 if (v->breakdown_ctr != 1) {
04044 v->breakdown_ctr = 1;
04045 v->cur_speed = 0;
04046
04047 if (v->breakdowns_since_last_service != 255)
04048 v->breakdowns_since_last_service++;
04049
04050 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04051 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
04052
04053 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
04054 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
04055 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
04056 }
04057
04058 if (!(v->vehstatus & VS_HIDDEN)) {
04059 Vehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
04060 if (u != NULL) u->u.effect.animation_state = v->breakdown_delay * 2;
04061 }
04062 }
04063
04064 if (!(v->tick_counter & 3)) {
04065 if (!--v->breakdown_delay) {
04066 v->breakdown_ctr = 0;
04067 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04068 }
04069 }
04070 }
04071
04073 static const uint16 _breakdown_speeds[16] = {
04074 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
04075 };
04076
04077
04085 static bool TrainApproachingLineEnd(Vehicle *v, bool signal)
04086 {
04087
04088 uint x = v->x_pos & 0xF;
04089 uint y = v->y_pos & 0xF;
04090
04091
04092
04093 switch (v->direction) {
04094 case DIR_N : x = ~x + ~y + 25; break;
04095 case DIR_NW: x = y;
04096 case DIR_NE: x = ~x + 16; break;
04097 case DIR_E : x = ~x + y + 9; break;
04098 case DIR_SE: x = y; break;
04099 case DIR_S : x = x + y - 7; break;
04100 case DIR_W : x = ~y + x + 9; break;
04101 default: break;
04102 }
04103
04104
04105 if (!signal && x + (v->u.rail.cached_veh_length + 1) / 2 >= TILE_SIZE) {
04106
04107 v->cur_speed = 0;
04108 ReverseTrainDirection(v);
04109 return false;
04110 }
04111
04112
04113 v->vehstatus |= VS_TRAIN_SLOWING;
04114 uint16 break_speed = _breakdown_speeds[x & 0xF];
04115 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04116
04117 return true;
04118 }
04119
04120
04126 static bool TrainCanLeaveTile(const Vehicle *v)
04127 {
04128
04129 if (v->u.rail.track == TRACK_BIT_WORMHOLE || v->u.rail.track == TRACK_BIT_DEPOT) return false;
04130
04131 TileIndex tile = v->tile;
04132
04133
04134 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
04135 DiagDirection dir = GetTunnelBridgeDirection(tile);
04136 if (DiagDirToDir(dir) == v->direction) return false;
04137 }
04138
04139
04140 if (IsRailDepotTile(tile)) {
04141 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
04142 if (DiagDirToDir(dir) == v->direction) return false;
04143 }
04144
04145 return true;
04146 }
04147
04148
04156 static TileIndex TrainApproachingCrossingTile(const Vehicle *v)
04157 {
04158 assert(IsFrontEngine(v));
04159 assert(!(v->vehstatus & VS_CRASHED));
04160
04161 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
04162
04163 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04164 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04165
04166
04167 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
04168 !CheckCompatibleRail(v, tile)) {
04169 return INVALID_TILE;
04170 }
04171
04172 return tile;
04173 }
04174
04175
04182 static bool TrainCheckIfLineEnds(Vehicle *v)
04183 {
04184
04185
04186 int t = v->breakdown_ctr;
04187 if (t > 1) {
04188 v->vehstatus |= VS_TRAIN_SLOWING;
04189
04190 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
04191 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04192 } else {
04193 v->vehstatus &= ~VS_TRAIN_SLOWING;
04194 }
04195
04196 if (!TrainCanLeaveTile(v)) return true;
04197
04198
04199 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04200
04201 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04202
04203
04204 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
04205 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
04206
04207 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
04208 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
04209
04210
04211
04212
04213 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
04214 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
04215 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
04216 }
04217
04218
04219 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
04220 return TrainApproachingLineEnd(v, false);
04221 }
04222
04223
04224 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
04225
04226
04227 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
04228
04229 return true;
04230 }
04231
04232
04233 static void TrainLocoHandler(Vehicle *v, bool mode)
04234 {
04235
04236 if (v->vehstatus & VS_CRASHED) {
04237 if (!mode) HandleCrashedTrain(v);
04238 return;
04239 }
04240
04241 if (v->u.rail.force_proceed != 0) {
04242 v->u.rail.force_proceed--;
04243 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04244 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04245 }
04246
04247
04248 if (v->breakdown_ctr != 0) {
04249 if (v->breakdown_ctr <= 2) {
04250 HandleBrokenTrain(v);
04251 return;
04252 }
04253 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
04254 }
04255
04256 if (HasBit(v->u.rail.flags, VRF_REVERSING) && v->cur_speed == 0) {
04257 ReverseTrainDirection(v);
04258 }
04259
04260
04261 if (v->vehstatus & VS_STOPPED && v->cur_speed == 0) return;
04262
04263 bool valid_order = v->current_order.IsValid() && v->current_order.GetType() != OT_CONDITIONAL;
04264 if (ProcessOrders(v) && CheckReverseTrain(v)) {
04265 v->load_unload_time_rem = 0;
04266 v->cur_speed = 0;
04267 v->subspeed = 0;
04268 ReverseTrainDirection(v);
04269 return;
04270 }
04271
04272 v->HandleLoading(mode);
04273
04274 if (v->current_order.IsType(OT_LOADING)) return;
04275
04276 if (CheckTrainStayInDepot(v)) return;
04277
04278 if (!mode) HandleLocomotiveSmokeCloud(v);
04279
04280
04281 if (!valid_order && v->current_order.IsValid()) {
04282 CheckNextTrainTile(v);
04283 }
04284
04285
04286 if (!mode && HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
04287 ++v->load_unload_time_rem;
04288
04289
04290 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;
04291
04292 if (!turn_around && v->load_unload_time_rem % _settings_game.pf.path_backoff_interval != 0 && v->u.rail.force_proceed == 0) return;
04293 if (!TryPathReserve(v)) {
04294
04295 if (turn_around) ReverseTrainDirection(v);
04296
04297 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK) && v->load_unload_time_rem > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
04298
04299 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
04300 SetDParam(0, v->index);
04301 AddNewsItem(
04302 STR_TRAIN_IS_STUCK,
04303 NS_ADVICE,
04304 v->index,
04305 0);
04306 }
04307 v->load_unload_time_rem = 0;
04308 }
04309
04310 if (v->u.rail.force_proceed == 0) return;
04311 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04312 v->load_unload_time_rem = 0;
04313 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04314 }
04315 }
04316
04317 if (v->current_order.IsType(OT_LEAVESTATION)) {
04318 v->current_order.Free();
04319 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04320 return;
04321 }
04322
04323 int j = UpdateTrainSpeed(v);
04324
04325
04326 if (v->cur_speed == 0 && v->u.rail.last_speed == 0 && v->vehstatus & VS_STOPPED) {
04327 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04328 }
04329
04330 int adv_spd = (v->direction & 1) ? 192 : 256;
04331 if (j < adv_spd) {
04332
04333 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04334 } else {
04335 TrainCheckIfLineEnds(v);
04336
04337 for (;;) {
04338 j -= adv_spd;
04339 TrainController(v, NULL);
04340
04341 if (CheckTrainCollision(v)) break;
04342
04343 adv_spd = (v->direction & 1) ? 192 : 256;
04344
04345
04346 if (j < adv_spd || v->cur_speed == 0) break;
04347
04348 OrderType order_type = v->current_order.GetType();
04349
04350 if ((order_type == OT_GOTO_WAYPOINT &&
04351 v->dest_tile == v->tile) ||
04352 (order_type == OT_GOTO_STATION &&
04353 (v->current_order.GetNonStopType() & ONSF_NO_STOP_AT_DESTINATION_STATION) &&
04354 IsTileType(v->tile, MP_STATION) &&
04355 v->current_order.GetDestination() == GetStationIndex(v->tile))) {
04356 ProcessOrders(v);
04357 }
04358 }
04359 SetLastSpeed(v, v->cur_speed);
04360 }
04361
04362 for (Vehicle *u = v; u != NULL; u = u->Next()) {
04363 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04364
04365 uint16 old_image = u->cur_image;
04366 u->cur_image = u->GetImage(u->direction);
04367 if (old_image != u->cur_image) VehicleMove(u, true);
04368 }
04369
04370 if (v->progress == 0) v->progress = j;
04371 }
04372
04373
04374
04375 Money Train::GetRunningCost() const
04376 {
04377 Money cost = 0;
04378 const Vehicle *v = this;
04379
04380 do {
04381 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
04382
04383 byte cost_factor = GetVehicleProperty(v, 0x0D, rvi->running_cost);
04384 if (cost_factor == 0) continue;
04385
04386
04387 if (IsMultiheaded(v)) cost_factor /= 2;
04388
04389 cost += cost_factor * GetPriceByIndex(rvi->running_cost_class);
04390 } while ((v = GetNextVehicle(v)) != NULL);
04391
04392 return cost;
04393 }
04394
04395
04396 void Train::Tick()
04397 {
04398 if (_age_cargo_skip_counter == 0) this->cargo.AgeCargo();
04399
04400 this->tick_counter++;
04401
04402 if (IsFrontEngine(this)) {
04403 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04404 this->current_order_time++;
04405
04406 TrainLocoHandler(this, false);
04407
04408
04409 if (this->type == VEH_TRAIN && IsFrontEngine(this))
04410 TrainLocoHandler(this, true);
04411 } else if (IsFreeWagon(this) && HASBITS(this->vehstatus, VS_CRASHED)) {
04412
04413 if (++this->u.rail.crash_anim_pos >= 4400) delete this;
04414 }
04415 }
04416
04417 static void CheckIfTrainNeedsService(Vehicle *v)
04418 {
04419 static const uint MAX_ACCEPTABLE_DEPOT_DIST = 16;
04420
04421 if (_settings_game.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04422 if (v->IsInDepot()) {
04423 VehicleServiceInDepot(v);
04424 return;
04425 }
04426
04427 TrainFindDepotData tfdd = FindClosestTrainDepot(v, MAX_ACCEPTABLE_DEPOT_DIST);
04428
04429 if (tfdd.best_length == UINT_MAX || tfdd.best_length > MAX_ACCEPTABLE_DEPOT_DIST) {
04430 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04431
04432
04433
04434 v->current_order.MakeDummy();
04435 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04436 }
04437 return;
04438 }
04439
04440 const Depot *depot = GetDepotByTile(tfdd.tile);
04441
04442 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04443 v->current_order.GetDestination() != depot->index &&
04444 !Chance16(3, 16)) {
04445 return;
04446 }
04447
04448 v->current_order.MakeGoToDepot(depot->index, ODTFB_SERVICE);
04449 v->dest_tile = tfdd.tile;
04450 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04451 }
04452
04453 void Train::OnNewDay()
04454 {
04455 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04456
04457 if (IsFrontEngine(this)) {
04458 CheckVehicleBreakdown(this);
04459 AgeVehicle(this);
04460
04461 CheckIfTrainNeedsService(this);
04462
04463 CheckOrders(this);
04464
04465
04466 if (this->current_order.IsType(OT_GOTO_STATION)) {
04467 TileIndex tile = GetStation(this->current_order.GetDestination())->train_tile;
04468 if (tile != INVALID_TILE) this->dest_tile = tile;
04469 }
04470
04471 if (this->running_ticks != 0) {
04472
04473 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04474
04475 this->profit_this_year -= cost.GetCost();
04476 this->running_ticks = 0;
04477
04478 SubtractMoneyFromCompanyFract(this->owner, cost);
04479
04480 InvalidateWindow(WC_VEHICLE_DETAILS, this->index);
04481 InvalidateWindowClasses(WC_TRAINS_LIST);
04482 }
04483 } else if (IsTrainEngine(this)) {
04484
04485 AgeVehicle(this);
04486 }
04487 }
04488
04489 void InitializeTrains()
04490 {
04491 _age_cargo_skip_counter = 1;
04492 }