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 (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->u.rail.force_proceed == 0) {
02388
02389 InvalidateWindowClasses(WC_TRAINS_LIST);
02390 MarkTrainAsStuck(v);
02391 return true;
02392 }
02393
02394 SetDepotWaypointReservation(v->tile, true);
02395 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02396
02397 VehicleServiceInDepot(v);
02398 InvalidateWindowClasses(WC_TRAINS_LIST);
02399 v->PlayLeaveStationSound();
02400
02401 v->u.rail.track = TRACK_BIT_X;
02402 if (v->direction & 2) v->u.rail.track = TRACK_BIT_Y;
02403
02404 v->vehstatus &= ~VS_HIDDEN;
02405 v->cur_speed = 0;
02406
02407 v->UpdateDeltaXY(v->direction);
02408 v->cur_image = v->GetImage(v->direction);
02409 VehicleMove(v, false);
02410 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02411 UpdateTrainAcceleration(v);
02412 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02413
02414 return false;
02415 }
02416
02418 static void ClearPathReservation(const Vehicle *v, TileIndex tile, Trackdir track_dir)
02419 {
02420 DiagDirection dir = TrackdirToExitdir(track_dir);
02421
02422 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02423
02424 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02425 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02426
02427 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02428
02429 SetTunnelBridgeReservation(tile, false);
02430 SetTunnelBridgeReservation(end, false);
02431
02432 if (_settings_client.gui.show_track_reservation) {
02433 MarkTileDirtyByTile(tile);
02434 MarkTileDirtyByTile(end);
02435 }
02436 }
02437 }
02438 } else if (IsRailwayStationTile(tile)) {
02439 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02440
02441
02442 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02443 SetRailwayStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02444 }
02445 } else {
02446
02447 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02448 }
02449 }
02450
02452 void FreeTrainTrackReservation(const Vehicle *v, TileIndex origin, Trackdir orig_td)
02453 {
02454 assert(IsFrontEngine(v));
02455
02456 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02457 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : GetVehicleTrackdir(v);
02458 bool free_tile = tile != v->tile || !(IsRailwayStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02459 StationID station_id = IsRailwayStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02460
02461
02462 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02463
02464 CFollowTrackRail ft(v, GetRailTypeInfo(v->u.rail.railtype)->compatible_railtypes);
02465 while (ft.Follow(tile, td)) {
02466 tile = ft.m_new_tile;
02467 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02468 td = RemoveFirstTrackdir(&bits);
02469 assert(bits == TRACKDIR_BIT_NONE);
02470
02471 if (!IsValidTrackdir(td)) break;
02472
02473 if (IsTileType(tile, MP_RAILWAY)) {
02474 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02475
02476 UnreserveRailTrack(tile, TrackdirToTrack(td));
02477 break;
02478 }
02479 if (HasPbsSignalOnTrackdir(tile, td)) {
02480 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02481
02482 break;
02483 } else {
02484
02485 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02486 MarkTileDirtyByTile(tile);
02487 }
02488 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02489 break;
02490 }
02491 }
02492
02493
02494 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);
02495
02496 free_tile = true;
02497 }
02498 }
02499
02501 struct TrainTrackFollowerData {
02502 TileIndex dest_coords;
02503 StationID station_index;
02504 uint best_bird_dist;
02505 uint best_track_dist;
02506 TrackdirByte best_track;
02507 };
02508
02509 static bool NtpCallbFindStation(TileIndex tile, TrainTrackFollowerData *ttfd, Trackdir track, uint length)
02510 {
02511
02512 if (ttfd->dest_coords == 0) return false;
02513
02514
02515 if ((ttfd->station_index == INVALID_STATION && tile == ttfd->dest_coords) || (
02516 IsTileType(tile, MP_STATION) &&
02517 IsRailwayStation(tile) &&
02518 GetStationIndex(tile) == ttfd->station_index
02519 )) {
02520
02521
02522
02523
02524
02525 ttfd->best_track = track;
02526 ttfd->best_bird_dist = 0;
02527 return true;
02528 } else {
02529
02530 uint dist = DistanceManhattan(tile, ttfd->dest_coords);
02531 if (dist < ttfd->best_bird_dist) {
02532 ttfd->best_bird_dist = dist;
02533 ttfd->best_track = track;
02534 }
02535 return false;
02536 }
02537 }
02538
02539 static void FillWithStationData(TrainTrackFollowerData *fd, const Vehicle *v)
02540 {
02541 fd->dest_coords = v->dest_tile;
02542 fd->station_index = v->current_order.IsType(OT_GOTO_STATION) ? v->current_order.GetDestination() : INVALID_STATION;
02543 }
02544
02545 static const byte _initial_tile_subcoord[6][4][3] = {
02546 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02547 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02548 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02549 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02550 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02551 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02552 };
02553
02554 static const byte _search_directions[6][4] = {
02555 { 0, 9, 2, 9 },
02556 { 9, 1, 9, 3 },
02557 { 9, 0, 3, 9 },
02558 { 1, 9, 9, 2 },
02559 { 3, 2, 9, 9 },
02560 { 9, 9, 1, 0 },
02561 };
02562
02563 static const byte _pick_track_table[6] = {1, 3, 2, 2, 0, 0};
02564
02577 static Track DoTrainPathfind(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02578 {
02579 Track best_track;
02580
02581 #ifdef PF_BENCHMARK
02582 TIC()
02583 #endif
02584
02585 if (path_not_found) *path_not_found = false;
02586
02587 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02588 if (do_track_reservation && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02589
02590 switch (pathfinder) {
02591 case VPF_YAPF: {
02592 Trackdir trackdir = YapfChooseRailTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02593 if (trackdir != INVALID_TRACKDIR) {
02594 best_track = TrackdirToTrack(trackdir);
02595 } else {
02596 best_track = FindFirstTrack(tracks);
02597 }
02598 } break;
02599
02600 case VPF_NPF: {
02601 void *perf = NpfBeginInterval();
02602
02603 NPFFindStationOrTileData fstd;
02604 NPFFillWithOrderData(&fstd, v, do_track_reservation);
02605
02606 PBSTileInfo origin = FollowTrainReservation(v);
02607 assert(IsValidTrackdir(origin.trackdir));
02608
02609 NPFFoundTargetData ftd = NPFRouteToStationOrTile(origin.tile, origin.trackdir, true, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
02610
02611 if (dest != NULL) {
02612 dest->tile = ftd.node.tile;
02613 dest->trackdir = (Trackdir)ftd.node.direction;
02614 dest->okay = ftd.res_okay;
02615 }
02616
02617 if (ftd.best_trackdir == INVALID_TRACKDIR) {
02618
02619
02620
02621 best_track = FindFirstTrack(tracks);
02622 } else {
02623
02624
02625
02626
02627 if (ftd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02628
02629 best_track = TrackdirToTrack(ftd.best_trackdir);
02630 }
02631
02632 int time = NpfEndInterval(perf);
02633 DEBUG(yapf, 4, "[NPFT] %d us - %d rounds - %d open - %d closed -- ", time, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
02634 } break;
02635
02636 default:
02637 case VPF_NTP: {
02638 void *perf = NpfBeginInterval();
02639
02640 TrainTrackFollowerData fd;
02641 FillWithStationData(&fd, v);
02642
02643
02644 fd.best_bird_dist = UINT_MAX;
02645 fd.best_track_dist = UINT_MAX;
02646 fd.best_track = INVALID_TRACKDIR;
02647
02648 NewTrainPathfind(tile - TileOffsByDiagDir(enterdir), v->dest_tile,
02649 v->u.rail.compatible_railtypes, enterdir, (NTPEnumProc*)NtpCallbFindStation, &fd);
02650
02651
02652 if (fd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02653
02654 if (fd.best_track == INVALID_TRACKDIR) {
02655
02656 best_track = FindFirstTrack(tracks);
02657 } else {
02658 best_track = TrackdirToTrack(fd.best_track);
02659 }
02660
02661 int time = NpfEndInterval(perf);
02662 DEBUG(yapf, 4, "[NTPT] %d us - %d rounds - %d open - %d closed -- ", time, 0, 0, 0);
02663 } break;
02664 }
02665
02666 #ifdef PF_BENCHMARK
02667 TOC("PF time = ", 1)
02668 #endif
02669
02670 return best_track;
02671 }
02672
02678 static PBSTileInfo ExtendTrainReservation(const Vehicle *v, TrackBits *new_tracks, DiagDirection *enterdir)
02679 {
02680 bool no_90deg_turns = _settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg;
02681 PBSTileInfo origin = FollowTrainReservation(v);
02682
02683 CFollowTrackRail ft(v);
02684
02685 TileIndex tile = origin.tile;
02686 Trackdir cur_td = origin.trackdir;
02687 while (ft.Follow(tile, cur_td)) {
02688 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02689
02690 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02691 }
02692
02693 if (no_90deg_turns) {
02694 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02695 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02696 }
02697
02698
02699 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRailTile(ft.m_new_tile));
02700 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02701
02702
02703
02704
02705
02706
02707 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02708
02709
02710
02711 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02712
02713
02714 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02715 if (enterdir) *enterdir = ft.m_exitdir;
02716 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02717 }
02718
02719 tile = ft.m_new_tile;
02720 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02721
02722 if (IsSafeWaitingPosition(v, tile, cur_td, true, no_90deg_turns)) {
02723 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, no_90deg_turns);
02724 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02725
02726 return PBSTileInfo(tile, cur_td, true);
02727 }
02728
02729 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02730 }
02731
02732 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02733
02734 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02735 }
02736
02737
02738 tile = origin.tile;
02739 cur_td = origin.trackdir;
02740 TileIndex stopped = ft.m_old_tile;
02741 Trackdir stopped_td = ft.m_old_td;
02742 while (tile != stopped || cur_td != stopped_td) {
02743 if (!ft.Follow(tile, cur_td)) break;
02744
02745 if (no_90deg_turns) {
02746 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02747 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02748 }
02749 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02750
02751 tile = ft.m_new_tile;
02752 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02753
02754 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02755 }
02756
02757
02758 return PBSTileInfo();
02759 }
02760
02771 static bool TryReserveSafeTrack(const Vehicle *v, TileIndex tile, Trackdir td, bool override_tailtype)
02772 {
02773 if (_settings_game.pf.pathfinder_for_trains == VPF_YAPF) {
02774 return YapfRailFindNearestSafeTile(v, tile, td, override_tailtype);
02775 } else {
02776 return NPFRouteToSafeTile(v, tile, td, override_tailtype).res_okay;
02777 }
02778 }
02779
02781 class VehicleOrderSaver
02782 {
02783 private:
02784 Vehicle *v;
02785 Order old_order;
02786 TileIndex old_dest_tile;
02787 StationID old_last_station_visited;
02788 VehicleOrderID index;
02789
02790 public:
02791 VehicleOrderSaver(Vehicle *_v) :
02792 v(_v),
02793 old_order(_v->current_order),
02794 old_dest_tile(_v->dest_tile),
02795 old_last_station_visited(_v->last_station_visited),
02796 index(_v->cur_order_index)
02797 {
02798 }
02799
02800 ~VehicleOrderSaver()
02801 {
02802 this->v->current_order = this->old_order;
02803 this->v->dest_tile = this->old_dest_tile;
02804 this->v->last_station_visited = this->old_last_station_visited;
02805 }
02806
02812 bool SwitchToNextOrder(bool skip_first)
02813 {
02814 if (this->v->GetNumOrders() == 0) return false;
02815
02816 if (skip_first) ++this->index;
02817
02818 int conditional_depth = 0;
02819
02820 do {
02821
02822 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02823
02824 Order *order = GetVehicleOrder(this->v, this->index);
02825 assert(order != NULL);
02826
02827 switch (order->GetType()) {
02828 case OT_GOTO_DEPOT:
02829
02830 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02831 case OT_GOTO_STATION:
02832 case OT_GOTO_WAYPOINT:
02833 this->v->current_order = *order;
02834 UpdateOrderDest(this->v, order);
02835 return true;
02836 case OT_CONDITIONAL: {
02837 if (conditional_depth > this->v->GetNumOrders()) return false;
02838 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02839 if (next != INVALID_VEH_ORDER_ID) {
02840 conditional_depth++;
02841 this->index = next;
02842
02843 continue;
02844 }
02845 break;
02846 }
02847 default:
02848 break;
02849 }
02850
02851
02852 ++this->index;
02853 } while (this->index != this->v->cur_order_index);
02854
02855 return false;
02856 }
02857 };
02858
02859
02860 static Track ChooseTrainTrack(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02861 {
02862 Track best_track = INVALID_TRACK;
02863 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02864 bool changed_signal = false;
02865
02866 assert((tracks & ~TRACK_BIT_MASK) == 0);
02867
02868 if (got_reservation != NULL) *got_reservation = false;
02869
02870
02871 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02872
02873 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02874
02875
02876 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02877 Track track = FindFirstTrack(tracks);
02878
02879 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02880 do_track_reservation = true;
02881 changed_signal = true;
02882 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02883 } else if (!do_track_reservation) {
02884 return track;
02885 }
02886 best_track = track;
02887 }
02888
02889 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02890 DiagDirection dest_enterdir = enterdir;
02891 if (do_track_reservation) {
02892
02893
02894
02895 CheckIfTrainNeedsService(v);
02896 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02897
02898 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02899 if (res_dest.tile == INVALID_TILE) {
02900
02901 if (mark_stuck) MarkTrainAsStuck(v);
02902 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02903 return FindFirstTrack(tracks);
02904 }
02905 }
02906
02907
02908 VehicleOrderSaver orders(v);
02909
02910
02911
02912
02913
02914
02915
02916 if (v->current_order.IsType(OT_LEAVESTATION)) {
02917 orders.SwitchToNextOrder(false);
02918 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02919 v->current_order.IsType(OT_GOTO_STATION) ?
02920 IsRailwayStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02921 v->tile == v->dest_tile))) {
02922 orders.SwitchToNextOrder(true);
02923 }
02924
02925 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02926
02927 bool path_not_found = false;
02928 TileIndex new_tile = res_dest.tile;
02929
02930 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02931 if (new_tile == tile) best_track = next_track;
02932
02933
02934 if (path_not_found) {
02935
02936 if (!HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02937
02938 SetBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02939
02940 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02941 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02942 SetDParam(0, v->index);
02943 AddNewsItem(
02944 STR_TRAIN_IS_LOST,
02945 NS_ADVICE,
02946 v->index,
02947 0);
02948 }
02949 }
02950 } else {
02951
02952 if (HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02953
02954 ClrBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02955
02956 }
02957 }
02958 }
02959
02960
02961 if (!do_track_reservation) return best_track;
02962
02963
02964 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02965 if (mark_stuck) MarkTrainAsStuck(v);
02966 FreeTrainTrackReservation(v);
02967 return best_track;
02968 }
02969
02970
02971 if (res_dest.tile == INVALID_TILE) {
02972
02973 PBSTileInfo origin = FollowTrainReservation(v);
02974 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02975 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02976 best_track = FindFirstTrack(res);
02977 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
02978 if (got_reservation != NULL) *got_reservation = true;
02979 if (changed_signal) MarkTileDirtyByTile(tile);
02980 } else {
02981 FreeTrainTrackReservation(v);
02982 if (mark_stuck) MarkTrainAsStuck(v);
02983 }
02984 return best_track;
02985 }
02986
02987 if (got_reservation != NULL) *got_reservation = true;
02988
02989
02990 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02991
02992 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02993 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02994 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02995 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
02996 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
02997 }
02998
02999
03000 if (orders.SwitchToNextOrder(true)) {
03001 PBSTileInfo cur_dest;
03002 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
03003 if (cur_dest.tile != INVALID_TILE) {
03004 res_dest = cur_dest;
03005 if (res_dest.okay) continue;
03006
03007 FreeTrainTrackReservation(v);
03008 if (mark_stuck) MarkTrainAsStuck(v);
03009 if (got_reservation != NULL) *got_reservation = false;
03010 changed_signal = false;
03011 break;
03012 }
03013 }
03014
03015 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
03016 FreeTrainTrackReservation(v);
03017 if (mark_stuck) MarkTrainAsStuck(v);
03018 if (got_reservation != NULL) *got_reservation = false;
03019 changed_signal = false;
03020 }
03021 break;
03022 }
03023
03024 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
03025
03026 if (changed_signal) MarkTileDirtyByTile(tile);
03027
03028 return best_track;
03029 }
03030
03039 bool TryPathReserve(Vehicle *v, bool mark_as_stuck, bool first_tile_okay)
03040 {
03041 assert(v->type == VEH_TRAIN && IsFrontEngine(v));
03042
03043
03044
03045
03046 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03047 if (GetDepotWaypointReservation(v->tile)) {
03048 if (mark_as_stuck) MarkTrainAsStuck(v);
03049 return false;
03050 } else {
03051
03052 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
03053 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
03054 }
03055 }
03056
03057
03058 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
03059 TileIndex next_tile = TileAddByDiagDir(v->tile, dir);
03060 if (IsTileType(next_tile, MP_RAILWAY) && HasReservedTracks(next_tile, DiagdirReachesTracks(dir))) {
03061
03062 Trackdir td = FindFirstTrackdir(TrackBitsToTrackdirBits(GetReservedTrackbits(next_tile)) & DiagdirReachesTrackdirs(dir));
03063 if (HasSignalOnTrackdir(next_tile, td) && HasSignalOnTrackdir(next_tile, ReverseTrackdir(td)) &&
03064 !IsPbsSignal(GetSignalType(next_tile, TrackdirToTrack(td)))) {
03065
03066 if (mark_as_stuck) MarkTrainAsStuck(v);
03067 return false;
03068 }
03069 }
03070
03071 bool other_train = false;
03072 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
03073
03074 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
03075
03076 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03077 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03078 return true;
03079 }
03080
03081
03082
03083
03084 if (other_train && v->tile != origin.tile) {
03085 if (mark_as_stuck) MarkTrainAsStuck(v);
03086 return false;
03087 }
03088
03089
03090 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03091 SetDepotWaypointReservation(v->tile, true);
03092 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
03093 }
03094
03095 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
03096 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
03097 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
03098
03099 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
03100
03101 bool res_made = false;
03102 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
03103
03104 if (!res_made) {
03105
03106 if (v->u.rail.track & TRACK_BIT_DEPOT) SetDepotWaypointReservation(v->tile, false);
03107 return false;
03108 }
03109
03110 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03111 v->load_unload_time_rem = 0;
03112 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03113 }
03114 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03115 return true;
03116 }
03117
03118
03119 static bool CheckReverseTrain(Vehicle *v)
03120 {
03121 if (_settings_game.difficulty.line_reverse_mode != 0 ||
03122 v->u.rail.track == TRACK_BIT_DEPOT || v->u.rail.track == TRACK_BIT_WORMHOLE ||
03123 !(v->direction & 1)) {
03124 return false;
03125 }
03126
03127 uint reverse_best = 0;
03128
03129 assert(v->u.rail.track);
03130
03131 switch (_settings_game.pf.pathfinder_for_trains) {
03132 case VPF_YAPF:
03133 reverse_best = YapfCheckReverseTrain(v);
03134 break;
03135
03136 case VPF_NPF: {
03137 NPFFindStationOrTileData fstd;
03138 NPFFoundTargetData ftd;
03139 Vehicle *last = GetLastVehicleInChain(v);
03140
03141 NPFFillWithOrderData(&fstd, v);
03142
03143 Trackdir trackdir = GetVehicleTrackdir(v);
03144 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
03145 assert(trackdir != INVALID_TRACKDIR);
03146 assert(trackdir_rev != INVALID_TRACKDIR);
03147
03148 ftd = NPFRouteToStationOrTileTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
03149 if (ftd.best_bird_dist != 0) {
03150
03151 reverse_best = false;
03152 } else {
03153 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) {
03154 reverse_best = true;
03155 } else {
03156 reverse_best = false;
03157 }
03158 }
03159 } break;
03160
03161 default:
03162 case VPF_NTP: {
03163 TrainTrackFollowerData fd;
03164 FillWithStationData(&fd, v);
03165
03166 int i = _search_directions[FindFirstTrack(v->u.rail.track)][DirToDiagDir(v->direction)];
03167
03168 int best_track = -1;
03169 uint reverse = 0;
03170 uint best_bird_dist = 0;
03171 uint best_track_dist = 0;
03172
03173 for (;;) {
03174 fd.best_bird_dist = UINT_MAX;
03175 fd.best_track_dist = UINT_MAX;
03176
03177 NewTrainPathfind(v->tile, v->dest_tile, v->u.rail.compatible_railtypes, (DiagDirection)(reverse ^ i), (NTPEnumProc*)NtpCallbFindStation, &fd);
03178
03179 if (best_track != -1) {
03180 if (best_bird_dist != 0) {
03181 if (fd.best_bird_dist != 0) {
03182
03183 if (fd.best_bird_dist > best_bird_dist) goto bad;
03184 if (fd.best_bird_dist < best_bird_dist) goto good;
03185 } else {
03186
03187 goto good;
03188 }
03189 } else {
03190 if (fd.best_bird_dist != 0) {
03191
03192 goto bad;
03193 } else {
03194
03195 if (fd.best_track_dist > best_track_dist) goto bad;
03196 if (fd.best_track_dist < best_track_dist) goto good;
03197 }
03198 }
03199
03200
03201
03202 int r = GB(Random(), 0, 8);
03203 if (_pick_track_table[i] == (v->direction & 3)) r += 80;
03204 if (_pick_track_table[best_track] == (v->direction & 3)) r -= 80;
03205 if (r <= 127) goto bad;
03206 }
03207 good:;
03208 best_track = i;
03209 best_bird_dist = fd.best_bird_dist;
03210 best_track_dist = fd.best_track_dist;
03211 reverse_best = reverse;
03212 bad:;
03213 if (reverse != 0) break;
03214 reverse = 2;
03215 }
03216 } break;
03217 }
03218
03219 return reverse_best != 0;
03220 }
03221
03222 TileIndex Train::GetOrderStationLocation(StationID station)
03223 {
03224 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
03225
03226 const Station *st = GetStation(station);
03227 if (!(st->facilities & FACIL_TRAIN)) {
03228
03229 this->cur_order_index++;
03230 return 0;
03231 }
03232
03233 return st->xy;
03234 }
03235
03236 void Train::MarkDirty()
03237 {
03238 Vehicle *v = this;
03239 do {
03240 v->cur_image = v->GetImage(v->direction);
03241 MarkSingleVehicleDirty(v);
03242 } while ((v = v->Next()) != NULL);
03243
03244
03245 TrainCargoChanged(this);
03246 UpdateTrainAcceleration(this);
03247 }
03248
03259 static int UpdateTrainSpeed(Vehicle *v)
03260 {
03261 uint accel;
03262
03263 if (v->vehstatus & VS_STOPPED || HasBit(v->u.rail.flags, VRF_REVERSING) || HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03264 switch (_settings_game.vehicle.train_acceleration_model) {
03265 default: NOT_REACHED();
03266 case TAM_ORIGINAL: accel = v->acceleration * -4; break;
03267 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_BRAKE); break;
03268 }
03269 } else {
03270 switch (_settings_game.vehicle.train_acceleration_model) {
03271 default: NOT_REACHED();
03272 case TAM_ORIGINAL: accel = v->acceleration * 2; break;
03273 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_ACCEL); break;
03274 }
03275 }
03276
03277 uint spd = v->subspeed + accel;
03278 v->subspeed = (byte)spd;
03279 {
03280 int tempmax = v->max_speed;
03281 if (v->cur_speed > v->max_speed)
03282 tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
03283 v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
03284 }
03285
03286
03287
03288
03289
03290
03291
03292
03293
03294
03295
03296
03297 int scaled_spd = spd * 3 >> 2;
03298
03299 scaled_spd += v->progress;
03300 v->progress = 0;
03301 return scaled_spd;
03302 }
03303
03304 static void TrainEnterStation(Vehicle *v, StationID station)
03305 {
03306 v->last_station_visited = station;
03307
03308
03309 Station *st = GetStation(station);
03310 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
03311 st->had_vehicle_of_type |= HVOT_TRAIN;
03312 SetDParam(0, st->index);
03313 AddNewsItem(
03314 STR_8801_CITIZENS_CELEBRATE_FIRST,
03315 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
03316 v->index,
03317 st->index
03318 );
03319 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
03320 }
03321
03322 v->BeginLoading();
03323
03324 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03325 }
03326
03327 static byte AfterSetTrainPos(Vehicle *v, bool new_tile)
03328 {
03329 byte old_z = v->z_pos;
03330 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03331
03332 if (new_tile) {
03333 ClrBit(v->u.rail.flags, VRF_GOINGUP);
03334 ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
03335
03336 if (v->u.rail.track == TRACK_BIT_X || v->u.rail.track == TRACK_BIT_Y) {
03337
03338
03339
03340
03341
03342 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03343 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03344
03345 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03346
03347
03348
03349 if (middle_z != v->z_pos && !IsTunnelTile(TileVirtXY(v->x_pos, v->y_pos))) {
03350 SetBit(v->u.rail.flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03351 }
03352 }
03353 }
03354
03355 VehicleMove(v, true);
03356 return old_z;
03357 }
03358
03359 static const Direction _new_vehicle_direction_table[11] = {
03360 DIR_N , DIR_NW, DIR_W , INVALID_DIR,
03361 DIR_NE, DIR_N , DIR_SW, INVALID_DIR,
03362 DIR_E , DIR_SE, DIR_S
03363 };
03364
03365 static inline Direction GetNewVehicleDirectionByTile(TileIndex new_tile, TileIndex old_tile)
03366 {
03367 uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
03368 TileX(new_tile) - TileX(old_tile) + 1;
03369 assert(offs < 11);
03370 return _new_vehicle_direction_table[offs];
03371 }
03372
03373 static inline int GetDirectionToVehicle(const Vehicle *v, int x, int y)
03374 {
03375 byte offs;
03376
03377 x -= v->x_pos;
03378 if (x >= 0) {
03379 offs = (x > 2) ? 0 : 1;
03380 } else {
03381 offs = (x < -2) ? 2 : 1;
03382 }
03383
03384 y -= v->y_pos;
03385 if (y >= 0) {
03386 offs += ((y > 2) ? 0 : 1) * 4;
03387 } else {
03388 offs += ((y < -2) ? 2 : 1) * 4;
03389 }
03390
03391 assert(offs < 11);
03392 return _new_vehicle_direction_table[offs];
03393 }
03394
03395
03396 static inline bool CheckCompatibleRail(const Vehicle *v, TileIndex tile)
03397 {
03398 return
03399 IsTileOwner(tile, v->owner) && (
03400 !IsFrontEngine(v) ||
03401 HasBit(v->u.rail.compatible_railtypes, GetRailType(tile))
03402 );
03403 }
03404
03405 struct RailtypeSlowdownParams {
03406 byte small_turn, large_turn;
03407 byte z_up;
03408 byte z_down;
03409 };
03410
03411 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03412
03413 {256 / 4, 256 / 2, 256 / 4, 2},
03414 {256 / 4, 256 / 2, 256 / 4, 2},
03415 {256 / 4, 256 / 2, 256 / 4, 2},
03416 {0, 256 / 2, 256 / 4, 2},
03417 };
03418
03420 static inline void AffectSpeedByDirChange(Vehicle *v, Direction new_dir)
03421 {
03422 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03423
03424 DirDiff diff = DirDifference(v->direction, new_dir);
03425 if (diff == DIRDIFF_SAME) return;
03426
03427 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03428 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03429 }
03430
03432 static inline void AffectSpeedByZChange(Vehicle *v, byte old_z)
03433 {
03434 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03435
03436 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03437
03438 if (old_z < v->z_pos) {
03439 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03440 } else {
03441 uint16 spd = v->cur_speed + rsp->z_down;
03442 if (spd <= v->max_speed) v->cur_speed = spd;
03443 }
03444 }
03445
03446 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03447 {
03448 if (IsTileType(tile, MP_RAILWAY) &&
03449 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03450 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03451 Trackdir trackdir = FindFirstTrackdir(tracks);
03452 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03453
03454 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03455 }
03456 }
03457 return false;
03458 }
03459
03460
03461 static void SetVehicleCrashed(Vehicle *v)
03462 {
03463 if (v->u.rail.crash_anim_pos != 0) return;
03464
03465
03466 if (IsFrontEngine(v)) {
03467
03468
03469 FreeTrainTrackReservation(v);
03470 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
03471 ClearPathReservation(u, u->tile, GetVehicleTrackdir(u));
03472 if (IsTileType(u->tile, MP_TUNNELBRIDGE)) {
03473
03474
03475 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(u->tile), false);
03476 }
03477 }
03478 }
03479
03480
03481 TileIndex crossing = TrainApproachingCrossingTile(v);
03482
03483 v->u.rail.crash_anim_pos++;
03484
03485 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03486 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
03487
03488 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03489 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
03490 }
03491
03492 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
03493
03494 for (; v != NULL; v = v->Next()) {
03495 v->vehstatus |= VS_CRASHED;
03496 MarkSingleVehicleDirty(v);
03497 }
03498
03499
03500 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03501 }
03502
03503 static uint CountPassengersInTrain(const Vehicle *v)
03504 {
03505 uint num = 0;
03506
03507 for (; v != NULL; v = v->Next()) {
03508 if (IsCargoInClass(v->cargo_type, CC_PASSENGERS)) num += v->cargo.Count();
03509 }
03510
03511 return num;
03512 }
03513
03520 static uint TrainCrashed(Vehicle *v)
03521 {
03522
03523 if (v->vehstatus & VS_CRASHED) return 0;
03524
03525
03526 uint num = 2 + CountPassengersInTrain(v);
03527
03528 SetVehicleCrashed(v);
03529 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03530
03531 return num;
03532 }
03533
03534 struct TrainCollideChecker {
03535 Vehicle *v;
03536 uint num;
03537 };
03538
03539 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03540 {
03541 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03542
03543 if (v->type != VEH_TRAIN) return NULL;
03544
03545
03546 Vehicle *coll = v->First();
03547
03548
03549 if (coll != tcc->v && v->u.rail.track != TRACK_BIT_DEPOT && abs(v->z_pos - tcc->v->z_pos) < 6) {
03550 int x_diff = v->x_pos - tcc->v->x_pos;
03551 int y_diff = v->y_pos - tcc->v->y_pos;
03552
03553
03554 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03555
03556
03557 tcc->num += TrainCrashed(tcc->v);
03558 tcc->num += TrainCrashed(coll);
03559
03560
03561
03562 const Vehicle *u;
03563 FOR_ALL_VEHICLES(u) {
03564 if (u->type == VEH_TRAIN && HASBITS(u->vehstatus, VS_CRASHED) && (u->u.rail.track & TRACK_BIT_DEPOT) == TRACK_BIT_NONE) {
03565 TrackBits trackbits = u->u.rail.track;
03566 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03567
03568 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(u->tile));
03569 }
03570 TryReserveRailTrack(u->tile, TrackBitsToTrack(trackbits));
03571 }
03572 }
03573 }
03574
03575 return NULL;
03576 }
03577
03584 static bool CheckTrainCollision(Vehicle *v)
03585 {
03586
03587 if (v->u.rail.track == TRACK_BIT_DEPOT) return false;
03588
03589 assert(v->u.rail.track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03590
03591 TrainCollideChecker tcc;
03592 tcc.v = v;
03593 tcc.num = 0;
03594
03595
03596 if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
03597 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03598 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03599 } else {
03600 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03601 }
03602
03603
03604 if (tcc.num == 0) return false;
03605
03606 SetDParam(0, tcc.num);
03607 AddNewsItem(STR_8868_TRAIN_CRASH_DIE_IN_FIREBALL,
03608 NS_ACCIDENT_VEHICLE,
03609 v->index,
03610 0
03611 );
03612
03613 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03614 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03615 return true;
03616 }
03617
03618 static Vehicle *CheckVehicleAtSignal(Vehicle *v, void *data)
03619 {
03620 DiagDirection exitdir = *(DiagDirection *)data;
03621
03622
03623 if (v->type == VEH_TRAIN && IsFrontEngine(v) && (v->u.rail.track & TRACK_BIT_MASK) != 0 && !(v->vehstatus & VS_CRASHED)) {
03624 if (v->cur_speed <= 5 && TrainExitDir(v->direction, v->u.rail.track) == exitdir) return v;
03625 }
03626
03627 return NULL;
03628 }
03629
03630 static void TrainController(Vehicle *v, Vehicle *nomove)
03631 {
03632 Vehicle *prev;
03633
03634
03635 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03636 DiagDirection enterdir = DIAGDIR_BEGIN;
03637 bool update_signals_crossing = false;
03638
03639 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03640 if (v->u.rail.track != TRACK_BIT_WORMHOLE) {
03641
03642 if (gp.old_tile == gp.new_tile) {
03643
03644 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03645
03646 gp.x = v->x_pos;
03647 gp.y = v->y_pos;
03648 } else {
03649
03650
03651
03652 if (IsFrontEngine(v) && !TrainCheckIfLineEnds(v)) return;
03653
03654 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03655 if (HasBit(r, VETS_CANNOT_ENTER)) {
03656 goto invalid_rail;
03657 }
03658 if (HasBit(r, VETS_ENTERED_STATION)) {
03659
03660 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03661 }
03662 }
03663 } else {
03664
03665
03666
03667 Direction dir = GetNewVehicleDirectionByTile(gp.new_tile, gp.old_tile);
03668 enterdir = DirToDiagDir(dir);
03669 assert(IsValidDiagDirection(enterdir));
03670
03671
03672
03673 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03674 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03675
03676 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03677 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03678
03679 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03680 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg && prev == NULL) {
03681
03682
03683 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
03684 }
03685
03686 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03687
03688
03689
03690 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03691
03692 TrackBits chosen_track;
03693 if (prev == NULL) {
03694
03695
03696 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03697 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03698
03699
03700 if (red_signals & chosen_track && v->u.rail.force_proceed == 0) {
03701
03702 Trackdir i = FindFirstTrackdir(trackdirbits);
03703
03704
03705 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) return;
03706
03707 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03708 v->cur_speed = 0;
03709 v->subspeed = 0;
03710 v->progress = 255 - 100;
03711 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_oneway_signal * 20) return;
03712 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03713 v->cur_speed = 0;
03714 v->subspeed = 0;
03715 v->progress = 255 - 10;
03716 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_twoway_signal * 73) {
03717 DiagDirection exitdir = TrackdirToExitdir(i);
03718 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03719
03720 exitdir = ReverseDiagDir(exitdir);
03721
03722
03723 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckVehicleAtSignal)) return;
03724 }
03725 }
03726
03727
03728
03729 if (_settings_game.pf.wait_for_pbs_path == 255 && UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03730 v->load_unload_time_rem = 0;
03731 return;
03732 }
03733 goto reverse_train_direction;
03734 } else {
03735 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03736 }
03737 } else {
03738 static const TrackBits _matching_tracks[8] = {
03739 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03740 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y,
03741 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03742 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y
03743 };
03744
03745
03746 chosen_track = (TrackBits)(byte)(_matching_tracks[GetDirectionToVehicle(prev, gp.x, gp.y)] & bits);
03747 }
03748
03749
03750 assert(
03751 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03752 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03753 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03754
03755
03756 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03757 gp.x = (gp.x & ~0xF) | b[0];
03758 gp.y = (gp.y & ~0xF) | b[1];
03759 Direction chosen_dir = (Direction)b[2];
03760
03761
03762 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03763 if (HasBit(r, VETS_CANNOT_ENTER)) {
03764 goto invalid_rail;
03765 }
03766
03767 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03768 Track track = FindFirstTrack(chosen_track);
03769 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03770 if (IsFrontEngine(v) && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03771 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03772 MarkTileDirtyByTile(gp.new_tile);
03773 }
03774
03775
03776 if (v->Next() == NULL) ClearPathReservation(v, v->tile, GetVehicleTrackdir(v));
03777
03778 v->tile = gp.new_tile;
03779
03780 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03781 TrainPowerChanged(v->First());
03782 }
03783
03784 v->u.rail.track = chosen_track;
03785 assert(v->u.rail.track);
03786 }
03787
03788
03789
03790 update_signals_crossing = true;
03791
03792 if (prev == NULL) AffectSpeedByDirChange(v, chosen_dir);
03793
03794 v->direction = chosen_dir;
03795
03796 if (IsFrontEngine(v)) {
03797 v->load_unload_time_rem = 0;
03798
03799
03800 TileIndex crossing = TrainApproachingCrossingTile(v);
03801 if (crossing != INVALID_TILE && GetCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03802
03803
03804 CheckNextTrainTile(v);
03805 }
03806 }
03807 } else {
03808
03809
03810
03811 if (!(v->vehstatus & VS_HIDDEN)) {
03812 v->cur_speed =
03813 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03814 }
03815
03816 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03817
03818 if (IsFrontEngine(v)) {
03819 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03820 CheckNextTrainTile(v);
03821 }
03822 } else {
03823 v->x_pos = gp.x;
03824 v->y_pos = gp.y;
03825 VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
03826 continue;
03827 }
03828 }
03829
03830
03831 v->UpdateDeltaXY(v->direction);
03832
03833 v->x_pos = gp.x;
03834 v->y_pos = gp.y;
03835
03836
03837 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03838
03839 if (prev == NULL) {
03840
03841 AffectSpeedByZChange(v, old_z);
03842 }
03843
03844 if (update_signals_crossing) {
03845 if (IsFrontEngine(v)) {
03846 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03847
03848
03849
03850
03851
03852
03853
03854
03855 if ((!HasReservedTracks(gp.new_tile, v->u.rail.track) &&
03856 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->u.rail.track))) ||
03857 !TryPathReserve(v)) {
03858 MarkTrainAsStuck(v);
03859 }
03860 }
03861 }
03862
03863
03864
03865 if (v->Next() == NULL) {
03866 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03867 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03868 }
03869 }
03870
03871
03872 if (IsFrontEngine(v) && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03873 }
03874 return;
03875
03876 invalid_rail:
03877
03878 if (prev != NULL) error("Disconnecting train");
03879
03880 reverse_train_direction:
03881 v->load_unload_time_rem = 0;
03882 v->cur_speed = 0;
03883 v->subspeed = 0;
03884 ReverseTrainDirection(v);
03885 }
03886
03892 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03893 {
03894 TrackBits *trackbits = (TrackBits *)data;
03895
03896 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03897 if ((v->u.rail.track & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03898
03899 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03900 } else {
03901 *trackbits |= v->u.rail.track;
03902 }
03903 }
03904
03905 return NULL;
03906 }
03907
03915 static void DeleteLastWagon(Vehicle *v)
03916 {
03917 Vehicle *first = v->First();
03918
03919
03920
03921
03922 Vehicle *u = v;
03923 for (; v->Next() != NULL; v = v->Next()) u = v;
03924 u->SetNext(NULL);
03925
03926 if (first != v) {
03927
03928 TrainConsistChanged(first, false);
03929
03930
03931 if (first->u.rail.track == TRACK_BIT_DEPOT) {
03932 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
03933 }
03934 }
03935
03936
03937 TrackBits trackbits = v->u.rail.track;
03938 TileIndex tile = v->tile;
03939 Owner owner = v->owner;
03940
03941 delete v;
03942 v = NULL;
03943
03944 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03945
03946 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03947 }
03948
03949 Track track = TrackBitsToTrack(trackbits);
03950 if (HasReservedTracks(tile, trackbits)) {
03951 UnreserveRailTrack(tile, track);
03952
03953
03954 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03955 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03956
03957
03958 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03959 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03960 if (HasBit(remaining_trackbits, t)) {
03961 TryReserveRailTrack(tile, t);
03962 }
03963 }
03964 }
03965
03966
03967 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03968
03969
03970 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03971 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03972 } else {
03973 SetSignalsOnBothDir(tile, track, owner);
03974 }
03975 }
03976
03977 static void ChangeTrainDirRandomly(Vehicle *v)
03978 {
03979 static const DirDiff delta[] = {
03980 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03981 };
03982
03983 do {
03984
03985 if (!(v->vehstatus & VS_HIDDEN)) {
03986 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03987 v->UpdateDeltaXY(v->direction);
03988 v->cur_image = v->GetImage(v->direction);
03989
03990
03991
03992 if (v->u.rail.track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
03993 }
03994 } while ((v = v->Next()) != NULL);
03995 }
03996
03997 static void HandleCrashedTrain(Vehicle *v)
03998 {
03999 int state = ++v->u.rail.crash_anim_pos;
04000
04001 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
04002 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
04003 }
04004
04005 uint32 r;
04006 if (state <= 200 && Chance16R(1, 7, r)) {
04007 int index = (r * 10 >> 16);
04008
04009 Vehicle *u = v;
04010 do {
04011 if (--index < 0) {
04012 r = Random();
04013
04014 CreateEffectVehicleRel(u,
04015 GB(r, 8, 3) + 2,
04016 GB(r, 16, 3) + 2,
04017 GB(r, 0, 3) + 5,
04018 EV_EXPLOSION_SMALL);
04019 break;
04020 }
04021 } while ((u = u->Next()) != NULL);
04022 }
04023
04024 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
04025
04026 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
04027 DeleteLastWagon(v);
04028 InvalidateWindow(WC_REPLACE_VEHICLE, (v->group_id << 16) | VEH_TRAIN);
04029 }
04030 }
04031
04032 static void HandleBrokenTrain(Vehicle *v)
04033 {
04034 if (v->breakdown_ctr != 1) {
04035 v->breakdown_ctr = 1;
04036 v->cur_speed = 0;
04037
04038 if (v->breakdowns_since_last_service != 255)
04039 v->breakdowns_since_last_service++;
04040
04041 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04042 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
04043
04044 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
04045 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
04046 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
04047 }
04048
04049 if (!(v->vehstatus & VS_HIDDEN)) {
04050 Vehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
04051 if (u != NULL) u->u.effect.animation_state = v->breakdown_delay * 2;
04052 }
04053 }
04054
04055 if (!(v->tick_counter & 3)) {
04056 if (!--v->breakdown_delay) {
04057 v->breakdown_ctr = 0;
04058 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04059 }
04060 }
04061 }
04062
04064 static const uint16 _breakdown_speeds[16] = {
04065 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
04066 };
04067
04068
04076 static bool TrainApproachingLineEnd(Vehicle *v, bool signal)
04077 {
04078
04079 uint x = v->x_pos & 0xF;
04080 uint y = v->y_pos & 0xF;
04081
04082
04083
04084 switch (v->direction) {
04085 case DIR_N : x = ~x + ~y + 25; break;
04086 case DIR_NW: x = y;
04087 case DIR_NE: x = ~x + 16; break;
04088 case DIR_E : x = ~x + y + 9; break;
04089 case DIR_SE: x = y; break;
04090 case DIR_S : x = x + y - 7; break;
04091 case DIR_W : x = ~y + x + 9; break;
04092 default: break;
04093 }
04094
04095
04096 if (!signal && x + (v->u.rail.cached_veh_length + 1) / 2 >= TILE_SIZE) {
04097
04098 v->cur_speed = 0;
04099 ReverseTrainDirection(v);
04100 return false;
04101 }
04102
04103
04104 v->vehstatus |= VS_TRAIN_SLOWING;
04105 uint16 break_speed = _breakdown_speeds[x & 0xF];
04106 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04107
04108 return true;
04109 }
04110
04111
04117 static bool TrainCanLeaveTile(const Vehicle *v)
04118 {
04119
04120 if (v->u.rail.track == TRACK_BIT_WORMHOLE || v->u.rail.track == TRACK_BIT_DEPOT) return false;
04121
04122 TileIndex tile = v->tile;
04123
04124
04125 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
04126 DiagDirection dir = GetTunnelBridgeDirection(tile);
04127 if (DiagDirToDir(dir) == v->direction) return false;
04128 }
04129
04130
04131 if (IsRailDepotTile(tile)) {
04132 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
04133 if (DiagDirToDir(dir) == v->direction) return false;
04134 }
04135
04136 return true;
04137 }
04138
04139
04147 static TileIndex TrainApproachingCrossingTile(const Vehicle *v)
04148 {
04149 assert(IsFrontEngine(v));
04150 assert(!(v->vehstatus & VS_CRASHED));
04151
04152 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
04153
04154 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04155 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04156
04157
04158 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
04159 !CheckCompatibleRail(v, tile)) {
04160 return INVALID_TILE;
04161 }
04162
04163 return tile;
04164 }
04165
04166
04173 static bool TrainCheckIfLineEnds(Vehicle *v)
04174 {
04175
04176
04177 int t = v->breakdown_ctr;
04178 if (t > 1) {
04179 v->vehstatus |= VS_TRAIN_SLOWING;
04180
04181 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
04182 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04183 } else {
04184 v->vehstatus &= ~VS_TRAIN_SLOWING;
04185 }
04186
04187 if (!TrainCanLeaveTile(v)) return true;
04188
04189
04190 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04191
04192 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04193
04194
04195 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
04196 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
04197
04198 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
04199 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
04200
04201
04202
04203
04204 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
04205 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
04206 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
04207 }
04208
04209
04210 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
04211 return TrainApproachingLineEnd(v, false);
04212 }
04213
04214
04215 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
04216
04217
04218 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
04219
04220 return true;
04221 }
04222
04223
04224 static void TrainLocoHandler(Vehicle *v, bool mode)
04225 {
04226
04227 if (v->vehstatus & VS_CRASHED) {
04228 if (!mode) HandleCrashedTrain(v);
04229 return;
04230 }
04231
04232 if (v->u.rail.force_proceed != 0) {
04233 v->u.rail.force_proceed--;
04234 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04235 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04236 }
04237
04238
04239 if (v->breakdown_ctr != 0) {
04240 if (v->breakdown_ctr <= 2) {
04241 HandleBrokenTrain(v);
04242 return;
04243 }
04244 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
04245 }
04246
04247 if (HasBit(v->u.rail.flags, VRF_REVERSING) && v->cur_speed == 0) {
04248 ReverseTrainDirection(v);
04249 }
04250
04251
04252 if (v->vehstatus & VS_STOPPED && v->cur_speed == 0) return;
04253
04254 bool valid_order = v->current_order.IsValid() && v->current_order.GetType() != OT_CONDITIONAL;
04255 if (ProcessOrders(v) && CheckReverseTrain(v)) {
04256 v->load_unload_time_rem = 0;
04257 v->cur_speed = 0;
04258 v->subspeed = 0;
04259 ReverseTrainDirection(v);
04260 return;
04261 }
04262
04263 v->HandleLoading(mode);
04264
04265 if (v->current_order.IsType(OT_LOADING)) return;
04266
04267 if (CheckTrainStayInDepot(v)) return;
04268
04269 if (!mode) HandleLocomotiveSmokeCloud(v);
04270
04271
04272 if (!valid_order && v->current_order.IsValid()) {
04273 CheckNextTrainTile(v);
04274 }
04275
04276
04277 if (!mode && HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
04278 ++v->load_unload_time_rem;
04279
04280
04281 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;
04282
04283 if (!turn_around && v->load_unload_time_rem % _settings_game.pf.path_backoff_interval != 0 && v->u.rail.force_proceed == 0) return;
04284 if (!TryPathReserve(v)) {
04285
04286 if (turn_around) ReverseTrainDirection(v);
04287
04288 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK) && v->load_unload_time_rem > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
04289
04290 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
04291 SetDParam(0, v->index);
04292 AddNewsItem(
04293 STR_TRAIN_IS_STUCK,
04294 NS_ADVICE,
04295 v->index,
04296 0);
04297 }
04298 v->load_unload_time_rem = 0;
04299 }
04300
04301 if (v->u.rail.force_proceed == 0) return;
04302 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04303 v->load_unload_time_rem = 0;
04304 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04305 }
04306 }
04307
04308 if (v->current_order.IsType(OT_LEAVESTATION)) {
04309 v->current_order.Free();
04310 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04311 return;
04312 }
04313
04314 int j = UpdateTrainSpeed(v);
04315
04316
04317 if (v->cur_speed == 0 && v->u.rail.last_speed == 0 && v->vehstatus & VS_STOPPED) {
04318 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04319 }
04320
04321 int adv_spd = (v->direction & 1) ? 192 : 256;
04322 if (j < adv_spd) {
04323
04324 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04325 } else {
04326 TrainCheckIfLineEnds(v);
04327
04328 do {
04329 j -= adv_spd;
04330 TrainController(v, NULL);
04331
04332 if (CheckTrainCollision(v)) break;
04333
04334 adv_spd = (v->direction & 1) ? 192 : 256;
04335 } while (j >= adv_spd);
04336 SetLastSpeed(v, v->cur_speed);
04337 }
04338
04339 for (Vehicle *u = v; u != NULL; u = u->Next()) {
04340 if ((u->vehstatus & VS_HIDDEN) != 0) continue;
04341
04342 uint16 old_image = u->cur_image;
04343 u->cur_image = u->GetImage(u->direction);
04344 if (old_image != u->cur_image) VehicleMove(u, true);
04345 }
04346
04347 if (v->progress == 0) v->progress = j;
04348 }
04349
04350
04351
04352 Money Train::GetRunningCost() const
04353 {
04354 Money cost = 0;
04355 const Vehicle *v = this;
04356
04357 do {
04358 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
04359
04360 byte cost_factor = GetVehicleProperty(v, 0x0D, rvi->running_cost);
04361 if (cost_factor == 0) continue;
04362
04363
04364 if (IsMultiheaded(v)) cost_factor /= 2;
04365
04366 cost += cost_factor * GetPriceByIndex(rvi->running_cost_class);
04367 } while ((v = GetNextVehicle(v)) != NULL);
04368
04369 return cost;
04370 }
04371
04372
04373 void Train::Tick()
04374 {
04375 if (_age_cargo_skip_counter == 0) this->cargo.AgeCargo();
04376
04377 this->tick_counter++;
04378
04379 if (IsFrontEngine(this)) {
04380 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04381 this->current_order_time++;
04382
04383 TrainLocoHandler(this, false);
04384
04385
04386 if (this->type == VEH_TRAIN && IsFrontEngine(this))
04387 TrainLocoHandler(this, true);
04388 } else if (IsFreeWagon(this) && HASBITS(this->vehstatus, VS_CRASHED)) {
04389
04390 if (++this->u.rail.crash_anim_pos >= 4400) delete this;
04391 }
04392 }
04393
04394 static void CheckIfTrainNeedsService(Vehicle *v)
04395 {
04396 static const uint MAX_ACCEPTABLE_DEPOT_DIST = 16;
04397
04398 if (_settings_game.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04399 if (v->IsInDepot()) {
04400 VehicleServiceInDepot(v);
04401 return;
04402 }
04403
04404 TrainFindDepotData tfdd = FindClosestTrainDepot(v, MAX_ACCEPTABLE_DEPOT_DIST);
04405
04406 if (tfdd.best_length == UINT_MAX || tfdd.best_length > MAX_ACCEPTABLE_DEPOT_DIST) {
04407 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04408
04409
04410
04411 v->current_order.MakeDummy();
04412 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04413 }
04414 return;
04415 }
04416
04417 const Depot *depot = GetDepotByTile(tfdd.tile);
04418
04419 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04420 v->current_order.GetDestination() != depot->index &&
04421 !Chance16(3, 16)) {
04422 return;
04423 }
04424
04425 v->current_order.MakeGoToDepot(depot->index, ODTFB_SERVICE);
04426 v->dest_tile = tfdd.tile;
04427 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04428 }
04429
04430 void Train::OnNewDay()
04431 {
04432 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04433
04434 if (IsFrontEngine(this)) {
04435 CheckVehicleBreakdown(this);
04436 AgeVehicle(this);
04437
04438 CheckIfTrainNeedsService(this);
04439
04440 CheckOrders(this);
04441
04442
04443 if (this->current_order.IsType(OT_GOTO_STATION)) {
04444 TileIndex tile = GetStation(this->current_order.GetDestination())->train_tile;
04445 if (tile != INVALID_TILE) this->dest_tile = tile;
04446 }
04447
04448 if (this->running_ticks != 0) {
04449
04450 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04451
04452 this->profit_this_year -= cost.GetCost();
04453 this->running_ticks = 0;
04454
04455 SubtractMoneyFromCompanyFract(this->owner, cost);
04456
04457 InvalidateWindow(WC_VEHICLE_DETAILS, this->index);
04458 InvalidateWindowClasses(WC_TRAINS_LIST);
04459 }
04460 } else if (IsTrainEngine(this)) {
04461
04462 AgeVehicle(this);
04463 }
04464 }
04465
04466 void InitializeTrains()
04467 {
04468 _age_cargo_skip_counter = 1;
04469 }