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, bool update_image);
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 SetBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH);
00182 SetDParamStr(0, grfconfig->name);
00183 SetDParam(1, u->engine_type);
00184 ShowErrorMessage(STR_NEWGRF_BROKEN_VEHICLE_LENGTH, STR_NEWGRF_BROKEN, 0, 0);
00185
00186
00187 char buffer[512];
00188
00189 SetDParamStr(0, grfconfig->name);
00190 GetString(buffer, STR_NEWGRF_BROKEN, lastof(buffer));
00191 DEBUG(grf, 0, "%s", buffer + 3);
00192
00193 SetDParam(1, u->engine_type);
00194 GetString(buffer, STR_NEWGRF_BROKEN_VEHICLE_LENGTH, lastof(buffer));
00195 DEBUG(grf, 0, "%s", buffer + 3);
00196
00197 if (!_networking) _pause_game = -1;
00198 }
00199 }
00200
00202 void CheckTrainsLengths()
00203 {
00204 const Vehicle *v;
00205
00206 FOR_ALL_VEHICLES(v) {
00207 if (v->type == VEH_TRAIN && v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00208 for (const Vehicle *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00209 if (u->u.rail.track != TRACK_BIT_DEPOT) {
00210 if ((w->u.rail.track != TRACK_BIT_DEPOT &&
00211 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->u.rail.cached_veh_length) ||
00212 (w->u.rail.track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00213 SetDParam(0, v->index);
00214 SetDParam(1, v->owner);
00215 ShowErrorMessage(INVALID_STRING_ID, STR_BROKEN_VEHICLE_LENGTH, 0, 0);
00216
00217 if (!_networking) _pause_game = -1;
00218 }
00219 }
00220 }
00221 }
00222 }
00223 }
00224
00232 void TrainConsistChanged(Vehicle *v, bool same_length)
00233 {
00234 uint16 max_speed = UINT16_MAX;
00235
00236 assert(v->type == VEH_TRAIN);
00237 assert(IsFrontEngine(v) || IsFreeWagon(v));
00238
00239 const RailVehicleInfo *rvi_v = RailVehInfo(v->engine_type);
00240 EngineID first_engine = IsFrontEngine(v) ? v->engine_type : INVALID_ENGINE;
00241 v->u.rail.cached_total_length = 0;
00242 v->u.rail.compatible_railtypes = RAILTYPES_NONE;
00243
00244 bool train_can_tilt = true;
00245
00246 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00247 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00248
00249
00250 assert(u->First() == v);
00251
00252
00253 u->u.rail.first_engine = v == u ? INVALID_ENGINE : first_engine;
00254 u->u.rail.railtype = rvi_u->railtype;
00255
00256 if (IsTrainEngine(u)) first_engine = u->engine_type;
00257
00258
00259 u->u.rail.user_def_data = rvi_u->user_def_data;
00260 u->cache_valid = 0;
00261 }
00262
00263 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00264
00265 u->u.rail.user_def_data = GetVehicleProperty(u, 0x25, u->u.rail.user_def_data);
00266 u->cache_valid = 0;
00267 }
00268
00269 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00270 const Engine *e_u = GetEngine(u->engine_type);
00271 const RailVehicleInfo *rvi_u = &e_u->u.rail;
00272
00273 if (!HasBit(EngInfo(u->engine_type)->misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00274
00275
00276 u->u.rail.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->u.rail.first_engine);
00277
00278
00279 u->colourmap = PAL_NONE;
00280
00281 if (rvi_u->visual_effect != 0) {
00282 u->u.rail.cached_vis_effect = rvi_u->visual_effect;
00283 } else {
00284 if (IsTrainWagon(u) || IsArticulatedPart(u)) {
00285
00286 u->u.rail.cached_vis_effect = 0x40;
00287 } else if (rvi_u->engclass == 0) {
00288
00289 u->u.rail.cached_vis_effect = 4;
00290 } else {
00291
00292 u->u.rail.cached_vis_effect = 8;
00293 }
00294 }
00295
00296
00297 if (HasBit(EngInfo(u->engine_type)->callbackmask, CBM_TRAIN_WAGON_POWER)) {
00298 uint16 callback = GetVehicleCallback(CBID_TRAIN_WAGON_POWER, 0, 0, u->engine_type, u);
00299
00300 if (callback != CALLBACK_FAILED) u->u.rail.cached_vis_effect = GB(callback, 0, 8);
00301 }
00302
00303 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00304 UsesWagonOverride(u) && !HasBit(u->u.rail.cached_vis_effect, 7)) {
00305
00306 SetBit(u->u.rail.flags, VRF_POWEREDWAGON);
00307 } else {
00308 ClrBit(u->u.rail.flags, VRF_POWEREDWAGON);
00309 }
00310
00311 if (!IsArticulatedPart(u)) {
00312
00313
00314 if (rvi_u->power > 0) {
00315 v->u.rail.compatible_railtypes |= GetRailTypeInfo(u->u.rail.railtype)->powered_railtypes;
00316 }
00317
00318
00319
00320 if (HasBit(u->u.rail.flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00321 u->u.rail.railtype = RAILTYPE_RAIL;
00322 u->u.rail.compatible_railtypes |= RAILTYPES_RAIL;
00323 }
00324
00325
00326 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00327 uint16 speed = GetVehicleProperty(u, 0x09, rvi_u->max_speed);
00328 if (speed != 0) max_speed = min(speed, max_speed);
00329 }
00330 }
00331
00332 if (e_u->CanCarryCargo() && u->cargo_type == e_u->GetDefaultCargoType() && u->cargo_subtype == 0) {
00333
00334 u->cargo_cap = GetVehicleProperty(u, 0x14, rvi_u->capacity);
00335 }
00336
00337
00338 uint16 veh_len = CALLBACK_FAILED;
00339 if (HasBit(EngInfo(u->engine_type)->callbackmask, CBM_VEHICLE_LENGTH)) {
00340 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00341 }
00342 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00343 veh_len = 8 - Clamp(veh_len, 0, u->Next() == NULL ? 7 : 5);
00344
00345
00346 if (same_length && veh_len != u->u.rail.cached_veh_length) RailVehicleLengthChanged(u);
00347
00348
00349 if (!same_length) u->u.rail.cached_veh_length = veh_len;
00350
00351 v->u.rail.cached_total_length += u->u.rail.cached_veh_length;
00352 u->cache_valid = 0;
00353 }
00354
00355
00356 v->u.rail.cached_max_speed = max_speed;
00357 v->u.rail.cached_tilt = train_can_tilt;
00358
00359
00360 TrainCargoChanged(v);
00361
00362 if (IsFrontEngine(v)) {
00363 UpdateTrainAcceleration(v);
00364 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
00365 }
00366 }
00367
00368 enum AccelType {
00369 AM_ACCEL,
00370 AM_BRAKE
00371 };
00372
00374 static int GetTrainAcceleration(Vehicle *v, bool mode)
00375 {
00376 static const int absolute_max_speed = UINT16_MAX;
00377 int max_speed = absolute_max_speed;
00378 int speed = v->cur_speed * 10 / 16;
00379 int curvecount[2] = {0, 0};
00380
00381
00382 int numcurve = 0;
00383 int sum = 0;
00384 int pos = 0;
00385 int lastpos = -1;
00386 for (const Vehicle *u = v; u->Next() != NULL; u = u->Next(), pos++) {
00387 Direction this_dir = u->direction;
00388 Direction next_dir = u->Next()->direction;
00389
00390 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00391 if (dirdiff == DIRDIFF_SAME) continue;
00392
00393 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00394 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00395 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00396 if (lastpos != -1) {
00397 numcurve++;
00398 sum += pos - lastpos;
00399 if (pos - lastpos == 1) {
00400 max_speed = 88;
00401 }
00402 }
00403 lastpos = pos;
00404 }
00405
00406
00407 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00408 max_speed = 61;
00409 }
00410 }
00411
00412 if ((curvecount[0] != 0 || curvecount[1] != 0) && max_speed > 88) {
00413 int total = curvecount[0] + curvecount[1];
00414
00415 if (curvecount[0] == 1 && curvecount[1] == 1) {
00416 max_speed = absolute_max_speed;
00417 } else if (total > 1) {
00418 if (numcurve > 0) sum /= numcurve;
00419 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00420 }
00421 }
00422
00423 if (max_speed != absolute_max_speed) {
00424
00425 const RailtypeInfo *rti = GetRailTypeInfo(v->u.rail.railtype);
00426 max_speed += (max_speed / 2) * rti->curve_speed;
00427
00428 if (v->u.rail.cached_tilt) {
00429
00430 max_speed += max_speed / 5;
00431 }
00432 }
00433
00434 if (IsTileType(v->tile, MP_STATION) && IsFrontEngine(v)) {
00435 if (v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) {
00436 int station_length = GetStationByTile(v->tile)->GetPlatformLength(v->tile, DirToDiagDir(v->direction));
00437
00438 int st_max_speed = 120;
00439
00440 int delta_v = v->cur_speed / (station_length + 1);
00441 if (v->max_speed > (v->cur_speed - delta_v)) {
00442 st_max_speed = v->cur_speed - (delta_v / 10);
00443 }
00444
00445 st_max_speed = max(st_max_speed, 25 * station_length);
00446 max_speed = min(max_speed, st_max_speed);
00447 }
00448 }
00449
00450 int mass = v->u.rail.cached_weight;
00451 int power = v->u.rail.cached_power * 746;
00452 max_speed = min(max_speed, v->u.rail.cached_max_speed);
00453
00454 int num = 0;
00455 int incl = 0;
00456 int drag_coeff = 20;
00457 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
00458 num++;
00459 drag_coeff += 3;
00460
00461 if (u->u.rail.track == TRACK_BIT_DEPOT) max_speed = min(max_speed, 61);
00462
00463 if (HasBit(u->u.rail.flags, VRF_GOINGUP)) {
00464 incl += u->u.rail.cached_veh_weight * 60;
00465 } else if (HasBit(u->u.rail.flags, VRF_GOINGDOWN)) {
00466 incl -= u->u.rail.cached_veh_weight * 60;
00467 }
00468 }
00469
00470 v->max_speed = max_speed;
00471
00472 const int area = 120;
00473 const int friction = 35;
00474 int resistance;
00475 if (v->u.rail.railtype != RAILTYPE_MAGLEV) {
00476 resistance = 13 * mass / 10;
00477 resistance += 60 * num;
00478 resistance += friction * mass * speed / 1000;
00479 resistance += (area * drag_coeff * speed * speed) / 10000;
00480 } else {
00481 resistance = (area * (drag_coeff / 2) * speed * speed) / 10000;
00482 }
00483 resistance += incl;
00484 resistance *= 4;
00485
00486 const int max_te = v->u.rail.cached_max_te;
00487 int force;
00488 if (speed > 0) {
00489 switch (v->u.rail.railtype) {
00490 case RAILTYPE_RAIL:
00491 case RAILTYPE_ELECTRIC:
00492 case RAILTYPE_MONO:
00493 force = power / speed;
00494 force *= 22;
00495 force /= 10;
00496 if (mode == AM_ACCEL && force > max_te) force = max_te;
00497 break;
00498
00499 default: NOT_REACHED();
00500 case RAILTYPE_MAGLEV:
00501 force = power / 25;
00502 break;
00503 }
00504 } else {
00505
00506 force = (mode == AM_ACCEL && v->u.rail.railtype != RAILTYPE_MAGLEV) ? min(max_te, power) : power;
00507 force = max(force, (mass * 8) + resistance);
00508 }
00509
00510 if (mode == AM_ACCEL) {
00511 return (force - resistance) / (mass * 2);
00512 } else {
00513 return min(-force - resistance, -10000) / mass;
00514 }
00515 }
00516
00517 void UpdateTrainAcceleration(Vehicle *v)
00518 {
00519 assert(IsFrontEngine(v));
00520
00521 v->max_speed = v->u.rail.cached_max_speed;
00522
00523 uint power = v->u.rail.cached_power;
00524 uint weight = v->u.rail.cached_weight;
00525 assert(weight != 0);
00526 v->acceleration = Clamp(power / weight * 4, 1, 255);
00527 }
00528
00529 SpriteID Train::GetImage(Direction direction) const
00530 {
00531 uint8 spritenum = this->spritenum;
00532 SpriteID sprite;
00533
00534 if (HasBit(this->u.rail.flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00535
00536 if (is_custom_sprite(spritenum)) {
00537 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00538 if (sprite != 0) return sprite;
00539
00540 spritenum = GetEngine(this->engine_type)->image_index;
00541 }
00542
00543 sprite = _engine_sprite_base[spritenum] + ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]);
00544
00545 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00546
00547 return sprite;
00548 }
00549
00550 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00551 {
00552 Direction dir = rear_head ? DIR_E : DIR_W;
00553 uint8 spritenum = RailVehInfo(engine)->image_index;
00554
00555 if (is_custom_sprite(spritenum)) {
00556 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00557 if (sprite != 0) {
00558 y += _traininfo_vehicle_pitch;
00559 return sprite;
00560 }
00561
00562 spritenum = GetEngine(engine)->image_index;
00563 }
00564
00565 if (rear_head) spritenum++;
00566
00567 return ((6 + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00568 }
00569
00570 void DrawTrainEngine(int x, int y, EngineID engine, SpriteID pal)
00571 {
00572 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00573 int yf = y;
00574 int yr = y;
00575
00576 SpriteID spritef = GetRailIcon(engine, false, yf);
00577 SpriteID spriter = GetRailIcon(engine, true, yr);
00578 DrawSprite(spritef, pal, x - 14, yf);
00579 DrawSprite(spriter, pal, x + 15, yr);
00580 } else {
00581 SpriteID sprite = GetRailIcon(engine, false, y);
00582 DrawSprite(sprite, pal, x, y);
00583 }
00584 }
00585
00586 static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, DoCommandFlag flags)
00587 {
00588 const Engine *e = GetEngine(engine);
00589 const RailVehicleInfo *rvi = &e->u.rail;
00590 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00591
00592
00593 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00594
00595 if (flags & DC_QUERY_COST) return value;
00596
00597
00598 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00599
00600 uint num_vehicles = 1 + CountArticulatedParts(engine, false);
00601
00602
00603 Vehicle **vl = AllocaM(Vehicle*, num_vehicles + 1);
00604 memset(vl, 0, sizeof(*vl) * (num_vehicles + 1));
00605
00606 if (!Vehicle::AllocateList(vl, num_vehicles)) {
00607 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00608 }
00609
00610 if (flags & DC_EXEC) {
00611 Vehicle *v = vl[0];
00612 v->spritenum = rvi->image_index;
00613
00614 Vehicle *u = NULL;
00615
00616 Vehicle *w;
00617 FOR_ALL_VEHICLES(w) {
00618 if (w->type == VEH_TRAIN && w->tile == tile &&
00619 IsFreeWagon(w) && w->engine_type == engine &&
00620 !HASBITS(w->vehstatus, VS_CRASHED)) {
00621 u = GetLastVehicleInChain(w);
00622 break;
00623 }
00624 }
00625
00626 v = new (v) Train();
00627 v->engine_type = engine;
00628
00629 DiagDirection dir = GetRailDepotDirection(tile);
00630
00631 v->direction = DiagDirToDir(dir);
00632 v->tile = tile;
00633
00634 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00635 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00636
00637 v->x_pos = x;
00638 v->y_pos = y;
00639 v->z_pos = GetSlopeZ(x, y);
00640 v->owner = _current_company;
00641 v->u.rail.track = TRACK_BIT_DEPOT;
00642 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00643
00644
00645 SetTrainWagon(v);
00646
00647 if (u != NULL) {
00648 u->SetNext(v);
00649 } else {
00650 SetFreeWagon(v);
00651 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00652 }
00653
00654 v->cargo_type = e->GetDefaultCargoType();
00655
00656 v->cargo_cap = rvi->capacity;
00657 v->value = value.GetCost();
00658
00659
00660 v->u.rail.railtype = rvi->railtype;
00661
00662 v->build_year = _cur_year;
00663 v->cur_image = 0xAC2;
00664 v->random_bits = VehicleRandomBits();
00665
00666 v->group_id = DEFAULT_GROUP;
00667
00668 AddArticulatedParts(vl, VEH_TRAIN);
00669
00670 _new_vehicle_id = v->index;
00671
00672 VehiclePositionChanged(v);
00673 TrainConsistChanged(v->First(), false);
00674 UpdateTrainGroupID(v->First());
00675
00676 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
00677 if (IsLocalCompany()) {
00678 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00679 }
00680 GetCompany(_current_company)->num_engines[engine]++;
00681 }
00682
00683 return value;
00684 }
00685
00687 static void NormalizeTrainVehInDepot(const Vehicle *u)
00688 {
00689 const Vehicle *v;
00690
00691 FOR_ALL_VEHICLES(v) {
00692 if (v->type == VEH_TRAIN && IsFreeWagon(v) &&
00693 v->tile == u->tile &&
00694 v->u.rail.track == TRACK_BIT_DEPOT) {
00695 if (CmdFailed(DoCommand(0, v->index | (u->index << 16), 1, DC_EXEC,
00696 CMD_MOVE_RAIL_VEHICLE)))
00697 break;
00698 }
00699 }
00700 }
00701
00702 static void AddRearEngineToMultiheadedTrain(Vehicle *v, Vehicle *u, bool building)
00703 {
00704 u = new (u) Train();
00705 u->direction = v->direction;
00706 u->owner = v->owner;
00707 u->tile = v->tile;
00708 u->x_pos = v->x_pos;
00709 u->y_pos = v->y_pos;
00710 u->z_pos = v->z_pos;
00711 u->u.rail.track = TRACK_BIT_DEPOT;
00712 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00713
00714 SetMultiheaded(u);
00715 u->spritenum = v->spritenum + 1;
00716 u->cargo_type = v->cargo_type;
00717 u->cargo_subtype = v->cargo_subtype;
00718 u->cargo_cap = v->cargo_cap;
00719 u->u.rail.railtype = v->u.rail.railtype;
00720 if (building) v->SetNext(u);
00721 u->engine_type = v->engine_type;
00722 u->build_year = v->build_year;
00723 if (building) v->value >>= 1;
00724 u->value = v->value;
00725 u->cur_image = 0xAC2;
00726 u->random_bits = VehicleRandomBits();
00727 VehiclePositionChanged(u);
00728 }
00729
00736 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00737 {
00738
00739 if (!IsEngineBuildable(p1, VEH_TRAIN, _current_company)) return_cmd_error(STR_RAIL_VEHICLE_NOT_AVAILABLE);
00740
00741 const Engine *e = GetEngine(p1);
00742 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00743
00744
00745 if (e->GetDefaultCargoType() == CT_INVALID) return CMD_ERROR;
00746
00747 if (flags & DC_QUERY_COST) return value;
00748
00749
00750
00751 if (!IsRailDepotTile(tile)) return CMD_ERROR;
00752 if (!IsTileOwner(tile, _current_company)) return CMD_ERROR;
00753
00754 const RailVehicleInfo *rvi = RailVehInfo(p1);
00755 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(p1, tile, flags);
00756
00757 uint num_vehicles =
00758 (rvi->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1) +
00759 CountArticulatedParts(p1, false);
00760
00761
00762
00763 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00764
00765
00766 Vehicle **vl = AllocaM(Vehicle*, num_vehicles + 1);
00767 memset(vl, 0, sizeof(*vl) * (num_vehicles + 1));
00768
00769 if (!Vehicle::AllocateList(vl, num_vehicles)) {
00770 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00771 }
00772
00773 Vehicle *v = vl[0];
00774
00775 UnitID unit_num = (flags & DC_AUTOREPLACE) ? 0 : GetFreeUnitNumber(VEH_TRAIN);
00776 if (unit_num > _settings_game.vehicle.max_trains) {
00777 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00778 }
00779
00780 if (flags & DC_EXEC) {
00781 DiagDirection dir = GetRailDepotDirection(tile);
00782 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00783 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00784
00785 v = new (v) Train();
00786 v->unitnumber = unit_num;
00787 v->direction = DiagDirToDir(dir);
00788 v->tile = tile;
00789 v->owner = _current_company;
00790 v->x_pos = x;
00791 v->y_pos = y;
00792 v->z_pos = GetSlopeZ(x, y);
00793
00794 v->u.rail.track = TRACK_BIT_DEPOT;
00795 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00796 v->spritenum = rvi->image_index;
00797 v->cargo_type = e->GetDefaultCargoType();
00798
00799 v->cargo_cap = rvi->capacity;
00800 v->max_speed = rvi->max_speed;
00801 v->value = value.GetCost();
00802 v->last_station_visited = INVALID_STATION;
00803
00804
00805 v->engine_type = p1;
00806
00807 v->reliability = e->reliability;
00808 v->reliability_spd_dec = e->reliability_spd_dec;
00809 v->max_age = e->lifelength * DAYS_IN_LEAP_YEAR;
00810
00811 v->name = NULL;
00812 v->u.rail.railtype = rvi->railtype;
00813 _new_vehicle_id = v->index;
00814
00815 v->service_interval = _settings_game.vehicle.servint_trains;
00816 v->date_of_last_service = _date;
00817 v->build_year = _cur_year;
00818 v->cur_image = 0xAC2;
00819 v->random_bits = VehicleRandomBits();
00820
00821
00822 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00823
00824 v->group_id = DEFAULT_GROUP;
00825
00826
00827 SetFrontEngine(v);
00828 SetTrainEngine(v);
00829
00830 VehiclePositionChanged(v);
00831
00832 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00833 SetMultiheaded(v);
00834 AddRearEngineToMultiheadedTrain(vl[0], vl[1], true);
00835
00836
00837
00838
00839 vl[0]->u.rail.other_multiheaded_part = vl[1];
00840 vl[1]->u.rail.other_multiheaded_part = vl[0];
00841 } else {
00842 AddArticulatedParts(vl, VEH_TRAIN);
00843 }
00844
00845 TrainConsistChanged(v, false);
00846 UpdateTrainGroupID(v);
00847
00848 if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) {
00849 NormalizeTrainVehInDepot(v);
00850 }
00851
00852 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00853 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
00854 InvalidateWindow(WC_COMPANY, v->owner);
00855 if (IsLocalCompany()) {
00856 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00857 }
00858
00859 GetCompany(_current_company)->num_engines[p1]++;
00860 }
00861
00862 return value;
00863 }
00864
00865
00866
00867
00868 int CheckTrainInDepot(const Vehicle *v, bool needs_to_be_stopped)
00869 {
00870 TileIndex tile = v->tile;
00871
00872
00873 if (!IsRailDepotTile(tile) || v->cur_speed != 0) return -1;
00874
00875 int count = 0;
00876 for (; v != NULL; v = v->Next()) {
00877
00878
00879
00880
00881
00882 if (!IsArticulatedPart(v) && !IsRearDualheaded(v)) count++;
00883 if (v->u.rail.track != TRACK_BIT_DEPOT || v->tile != tile ||
00884 (IsFrontEngine(v) && needs_to_be_stopped && !(v->vehstatus & VS_STOPPED))) {
00885 return -1;
00886 }
00887 }
00888
00889 return count;
00890 }
00891
00892
00893 int CheckTrainStoppedInDepot(const Vehicle *v)
00894 {
00895 return CheckTrainInDepot(v, true);
00896 }
00897
00898
00899 inline bool CheckTrainIsInsideDepot(const Vehicle *v)
00900 {
00901 return CheckTrainInDepot(v, false) > 0;
00902 }
00903
00910 static Vehicle *UnlinkWagon(Vehicle *v, Vehicle *first)
00911 {
00912
00913 if (v == first) {
00914 v = GetNextVehicle(v);
00915 if (v == NULL) return NULL;
00916
00917 if (IsTrainWagon(v)) SetFreeWagon(v);
00918
00919
00920
00921
00922 v->Previous()->SetNext(NULL);
00923
00924 return v;
00925 }
00926
00927 Vehicle *u;
00928 for (u = first; GetNextVehicle(u) != v; u = GetNextVehicle(u)) {}
00929 GetLastEnginePart(u)->SetNext(GetNextVehicle(v));
00930 return first;
00931 }
00932
00933 static Vehicle *FindGoodVehiclePos(const Vehicle *src)
00934 {
00935 Vehicle *dst;
00936 EngineID eng = src->engine_type;
00937 TileIndex tile = src->tile;
00938
00939 FOR_ALL_VEHICLES(dst) {
00940 if (dst->type == VEH_TRAIN && IsFreeWagon(dst) && dst->tile == tile && !HASBITS(dst->vehstatus, VS_CRASHED)) {
00941
00942 Vehicle *v = dst;
00943
00944 while (v->engine_type == eng) {
00945 v = v->Next();
00946 if (v == NULL) return dst;
00947 }
00948 }
00949 }
00950
00951 return NULL;
00952 }
00953
00954
00955
00956
00957
00958 static void AddWagonToConsist(Vehicle *v, Vehicle *dest)
00959 {
00960 UnlinkWagon(v, v->First());
00961 if (dest == NULL) return;
00962
00963 Vehicle *next = dest->Next();
00964 v->SetNext(NULL);
00965 dest->SetNext(v);
00966 v->SetNext(next);
00967 ClearFreeWagon(v);
00968 ClearFrontEngine(v);
00969 }
00970
00971
00972
00973
00974
00975 static void NormaliseTrainConsist(Vehicle *v)
00976 {
00977 if (IsFreeWagon(v)) return;
00978
00979 assert(IsFrontEngine(v));
00980
00981 for (; v != NULL; v = GetNextVehicle(v)) {
00982 if (!IsMultiheaded(v) || !IsTrainEngine(v)) continue;
00983
00984
00985 Vehicle *u;
00986 for (u = v; u->Next() != NULL && !IsTrainEngine(u->Next()); u = u->Next()) {}
00987
00988 if (u == v->u.rail.other_multiheaded_part) continue;
00989 AddWagonToConsist(v->u.rail.other_multiheaded_part, u);
00990 }
00991 }
00992
01002 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01003 {
01004 VehicleID s = GB(p1, 0, 16);
01005 VehicleID d = GB(p1, 16, 16);
01006
01007 if (!IsValidVehicleID(s)) return CMD_ERROR;
01008
01009 Vehicle *src = GetVehicle(s);
01010
01011 if (src->type != VEH_TRAIN || !CheckOwnership(src->owner)) return CMD_ERROR;
01012
01013
01014 if (HASBITS(src->vehstatus, VS_CRASHED)) return CMD_ERROR;
01015
01016
01017 Vehicle *dst;
01018 if (d == INVALID_VEHICLE) {
01019 dst = IsTrainEngine(src) ? NULL : FindGoodVehiclePos(src);
01020 } else {
01021 if (!IsValidVehicleID(d)) return CMD_ERROR;
01022 dst = GetVehicle(d);
01023 if (dst->type != VEH_TRAIN || !CheckOwnership(dst->owner)) return CMD_ERROR;
01024
01025
01026 if (HASBITS(dst->vehstatus, VS_CRASHED)) return CMD_ERROR;
01027 }
01028
01029
01030 while (IsArticulatedPart(src)) src = src->Previous();
01031 if (dst != NULL) {
01032 while (IsArticulatedPart(dst)) dst = dst->Previous();
01033 }
01034
01035
01036 if (src == dst) return CommandCost();
01037
01038
01039 Vehicle *src_head = src->First();
01040 Vehicle *dst_head;
01041 if (dst != NULL) {
01042 dst_head = dst->First();
01043 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01044
01045 dst = GetLastEnginePart(dst);
01046 } else {
01047 dst_head = NULL;
01048 }
01049
01050 if (IsRearDualheaded(src)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01051
01052
01053 if (HasBit(p2, 0) && src_head == dst_head) return CommandCost();
01054
01055
01056 int src_len = CheckTrainStoppedInDepot(src_head);
01057 if (src_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01058
01059 if ((flags & DC_AUTOREPLACE) == 0) {
01060
01061 int max_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
01062
01063
01064 if (src_head != dst_head) {
01065 int dst_len = 0;
01066
01067 if (dst_head != NULL) {
01068
01069 dst_len = CheckTrainStoppedInDepot(dst_head);
01070 if (dst_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01071 }
01072
01073
01074
01075 if (HasBit(p2, 0)) {
01076 const Vehicle *u;
01077 for (u = src_head; u != src && u != NULL; u = GetNextVehicle(u))
01078 src_len--;
01079 } else {
01080
01081 src_len = 1;
01082 }
01083
01084 if (src_len + dst_len > max_len) {
01085
01086 if (dst_head != NULL && IsFrontEngine(dst_head)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01087
01088 if (dst_head == NULL && IsTrainEngine(src)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01089 }
01090 } else {
01091
01092 if (src_len > max_len && src == src_head && IsTrainEngine(GetNextVehicle(src_head)))
01093 return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01094 }
01095 }
01096
01097
01098 if (dst == NULL && !IsFrontEngine(src) && IsTrainEngine(src)) {
01099 UnitID unit_num = ((flags & DC_AUTOREPLACE) != 0 ? 0 : GetFreeUnitNumber(VEH_TRAIN));
01100 if (unit_num > _settings_game.vehicle.max_trains)
01101 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01102
01103 if (flags & DC_EXEC) src->unitnumber = unit_num;
01104 }
01105
01106
01107 if (!HasBit(p2, 0) && (IsFreeWagon(src) || (IsFrontEngine(src) && dst == NULL)) && (flags & DC_AUTOREPLACE) == 0) {
01108 Vehicle *second = GetNextUnit(src);
01109 if (second != NULL && IsTrainEngine(second) && GetFreeUnitNumber(VEH_TRAIN) > _settings_game.vehicle.max_trains) {
01110 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01111 }
01112 }
01113
01114
01115
01116
01117
01118
01119
01120
01121 bool src_in_dst = false;
01122 for (Vehicle *v = dst_head; !src_in_dst && v != NULL; v = v->Next()) src_in_dst = v == src;
01123
01124
01125
01126
01127
01128
01129
01130
01131
01132 if (dst_head != NULL && !src_in_dst && (flags & DC_AUTOREPLACE) == 0) {
01133
01134
01135
01136
01137
01138
01139
01140
01141
01142 Vehicle *dst_tail = dst_head;
01143 while (dst_tail->Next() != NULL) dst_tail = dst_tail->Next();
01144
01145 Vehicle *orig_tail = dst_tail;
01146 Vehicle *next_to_attach = src;
01147 Vehicle *src_previous = src->Previous();
01148
01149 while (next_to_attach != NULL) {
01150
01151 if (!IsArticulatedPart(next_to_attach) && !IsRearDualheaded(next_to_attach)) {
01152
01153 EngineID first_engine = next_to_attach->u.rail.first_engine;
01154 next_to_attach->u.rail.first_engine = INVALID_ENGINE;
01155
01156 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, dst_head->engine_type, next_to_attach, dst_head);
01157
01158
01159 next_to_attach->u.rail.first_engine = first_engine;
01160
01161 if (callback != CALLBACK_FAILED) {
01162 StringID error = STR_NULL;
01163
01164 if (callback == 0xFD) error = STR_INCOMPATIBLE_RAIL_TYPES;
01165 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(dst_head->engine_type), 0xD000 + callback);
01166
01167 if (error != STR_NULL) {
01168
01169
01170
01171
01172
01173
01174
01175
01176
01177 dst_tail->SetNext(next_to_attach);
01178 orig_tail->SetNext(NULL);
01179 if (src_previous != NULL) src_previous->SetNext(src);
01180
01181 return_cmd_error(error);
01182 }
01183 }
01184 }
01185
01186
01187 if (!HasBit(p2, 0)) break;
01188
01189
01190
01191
01192
01193
01194
01195 Vehicle *to_add = next_to_attach;
01196 next_to_attach = next_to_attach->Next();
01197
01198 to_add->SetNext(NULL);
01199 dst_tail->SetNext(to_add);
01200 dst_tail = dst_tail->Next();
01201 }
01202
01203
01204
01205
01206
01207
01208
01209
01210 orig_tail->SetNext(NULL);
01211 if (src_previous != NULL) src_previous->SetNext(src);
01212 }
01213
01214
01215 if (flags & DC_EXEC) {
01216
01217
01218 if (IsFrontEngine(src) && !IsDefaultGroupID(src->group_id)) {
01219 Vehicle *v = GetNextVehicle(src);
01220
01221 if (v != NULL && IsTrainEngine(v)) {
01222 v->group_id = src->group_id;
01223 src->group_id = DEFAULT_GROUP;
01224 }
01225 }
01226
01227 if (HasBit(p2, 0)) {
01228
01229 if (src != src_head) {
01230 Vehicle *v = src_head;
01231 while (GetNextVehicle(v) != src) v = GetNextVehicle(v);
01232 GetLastEnginePart(v)->SetNext(NULL);
01233 } else {
01234 InvalidateWindowData(WC_VEHICLE_DEPOT, src_head->tile);
01235 src_head = NULL;
01236 }
01237 } else {
01238
01239 if (src_head == dst_head) dst_head = NULL;
01240
01241 src_head = UnlinkWagon(src, src_head);
01242 GetLastEnginePart(src)->SetNext(NULL);
01243 }
01244
01245 if (dst == NULL) {
01246
01247 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01248
01249
01250 if (IsTrainEngine(src)) {
01251 if (!IsFrontEngine(src)) {
01252
01253 SetFrontEngine(src);
01254 assert(src->orders.list == NULL);
01255
01256
01257 if (!IsDefaultGroupID(src->group_id) && IsValidGroupID(src->group_id)) {
01258 GetGroup(src->group_id)->num_engines[src->engine_type]--;
01259 }
01260
01261
01262 src->group_id = DEFAULT_GROUP;
01263 }
01264 } else {
01265 SetFreeWagon(src);
01266 }
01267 dst_head = src;
01268 } else {
01269 if (IsFrontEngine(src)) {
01270
01271 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01272 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01273 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01274 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01275 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01276 DeleteVehicleOrders(src);
01277 RemoveVehicleFromGroup(src);
01278 }
01279
01280 if (IsFrontEngine(src) || IsFreeWagon(src)) {
01281 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01282 ClearFrontEngine(src);
01283 ClearFreeWagon(src);
01284 src->unitnumber = 0;
01285 }
01286
01287
01288 {
01289 Vehicle *v;
01290
01291 for (v = src; GetNextVehicle(v) != NULL; v = GetNextVehicle(v)) {}
01292 GetLastEnginePart(v)->SetNext(dst->Next());
01293 }
01294 dst->SetNext(src);
01295 }
01296
01297 if (src->u.rail.other_multiheaded_part != NULL) {
01298 if (src->u.rail.other_multiheaded_part == src_head) {
01299 src_head = src_head->Next();
01300 }
01301 AddWagonToConsist(src->u.rail.other_multiheaded_part, src);
01302 }
01303
01304
01305
01306
01307 if (src_head != NULL && !IsFrontEngine(src_head) && IsTrainEngine(src_head)) {
01308
01309
01310 const GroupID tmp_g = src_head->group_id;
01311 CmdMoveRailVehicle(0, flags, src_head->index | (INVALID_VEHICLE << 16), 1, text);
01312 SetTrainGroupID(src_head, tmp_g);
01313 src_head = NULL;
01314 }
01315
01316 if (src_head != NULL) {
01317 NormaliseTrainConsist(src_head);
01318 TrainConsistChanged(src_head, false);
01319 UpdateTrainGroupID(src_head);
01320 if (IsFrontEngine(src_head)) {
01321
01322 InvalidateWindow(WC_VEHICLE_REFIT, src_head->index);
01323 InvalidateWindowWidget(WC_VEHICLE_VIEW, src_head->index, VVW_WIDGET_REFIT_VEH);
01324 }
01325
01326 InvalidateWindow(WC_VEHICLE_DEPOT, src_head->tile);
01327 }
01328
01329 if (dst_head != NULL) {
01330 NormaliseTrainConsist(dst_head);
01331 TrainConsistChanged(dst_head, false);
01332 UpdateTrainGroupID(dst_head);
01333 if (IsFrontEngine(dst_head)) {
01334
01335 InvalidateWindowWidget(WC_VEHICLE_VIEW, dst_head->index, VVW_WIDGET_REFIT_VEH);
01336 InvalidateWindow(WC_VEHICLE_REFIT, dst_head->index);
01337 }
01338
01339 InvalidateWindow(WC_VEHICLE_DEPOT, dst_head->tile);
01340 }
01341
01342 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01343 }
01344
01345 return CommandCost();
01346 }
01347
01357 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01358 {
01359
01360 Window *w = NULL;
01361
01362 if (!IsValidVehicleID(p1) || p2 > 1) return CMD_ERROR;
01363
01364 Vehicle *v = GetVehicle(p1);
01365
01366 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01367
01368 if (HASBITS(v->vehstatus, VS_CRASHED)) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
01369
01370 while (IsArticulatedPart(v)) v = v->Previous();
01371 Vehicle *first = v->First();
01372
01373
01374 if (CheckTrainStoppedInDepot(first) < 0) {
01375 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01376 }
01377
01378 if (IsRearDualheaded(v)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01379
01380 if (flags & DC_EXEC) {
01381 if (v == first && IsFrontEngine(first)) {
01382 DeleteWindowById(WC_VEHICLE_VIEW, first->index);
01383 DeleteWindowById(WC_VEHICLE_ORDERS, first->index);
01384 DeleteWindowById(WC_VEHICLE_REFIT, first->index);
01385 DeleteWindowById(WC_VEHICLE_DETAILS, first->index);
01386 DeleteWindowById(WC_VEHICLE_TIMETABLE, first->index);
01387 }
01388 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
01389 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01390 }
01391
01392 CommandCost cost(EXPENSES_NEW_VEHICLES);
01393 switch (p2) {
01394 case 0: {
01395 bool switch_engine = false;
01396
01397
01398
01399 Vehicle *rear = (IsMultiheaded(v) &&
01400 IsTrainEngine(v)) ? v->u.rail.other_multiheaded_part : NULL;
01401
01402 if (rear != NULL) {
01403 cost.AddCost(-rear->value);
01404 if (flags & DC_EXEC) {
01405 UnlinkWagon(rear, first);
01406 delete rear;
01407 }
01408 }
01409
01410
01411
01412 if (v == first) {
01413 Vehicle *new_f = GetNextVehicle(first);
01414
01415
01416
01417
01418 if (new_f != NULL && IsTrainEngine(new_f)) {
01419 if (IsTrainEngine(first)) {
01420
01421 switch_engine = true;
01422
01423 if (flags & DC_EXEC) {
01424
01425 new_f->group_id = first->group_id;
01426 first->group_id = DEFAULT_GROUP;
01427
01428
01429 new_f->orders.list = first->orders.list;
01430 new_f->AddToShared(first);
01431 DeleteVehicleOrders(first);
01432
01433
01434 new_f->CopyVehicleConfigAndStatistics(first);
01435
01436
01437 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_f);
01438 }
01439 } else {
01440
01441
01442
01443 cost.AddCost(DoCommand(0, new_f->index | INVALID_VEHICLE << 16, 1, flags, CMD_MOVE_RAIL_VEHICLE));
01444 if (cost.Failed()) return cost;
01445 }
01446 }
01447 }
01448
01449
01450 cost.AddCost(-v->value);
01451 if (flags & DC_EXEC) {
01452 first = UnlinkWagon(v, first);
01453 delete v;
01454
01455
01456
01457 if (switch_engine) SetFrontEngine(first);
01458
01459
01460 if (first != NULL) {
01461 NormaliseTrainConsist(first);
01462 TrainConsistChanged(first, false);
01463 UpdateTrainGroupID(first);
01464 if (IsFrontEngine(first)) InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01465 }
01466
01467 }
01468 } break;
01469 case 1: {
01470
01471
01472
01473 for (Vehicle *tmp; v != NULL; v = tmp) {
01474 tmp = GetNextVehicle(v);
01475
01476 if (IsMultiheaded(v)) {
01477 if (IsTrainEngine(v)) {
01478
01479 Vehicle *rear = v->u.rail.other_multiheaded_part;
01480
01481 if (rear != NULL) {
01482 cost.AddCost(-rear->value);
01483
01484
01485
01486
01487
01488
01489
01490 if (tmp == rear) tmp = GetNextVehicle(tmp);
01491
01492 if (flags & DC_EXEC) {
01493 first = UnlinkWagon(rear, first);
01494 delete rear;
01495 }
01496 }
01497 } else if (v->u.rail.other_multiheaded_part != NULL) {
01498
01499 continue;
01500 }
01501 }
01502
01503 cost.AddCost(-v->value);
01504 if (flags & DC_EXEC) {
01505 first = UnlinkWagon(v, first);
01506 delete v;
01507 }
01508 }
01509
01510
01511 if (flags & DC_EXEC && first != NULL) {
01512 NormaliseTrainConsist(first);
01513 TrainConsistChanged(first, false);
01514 UpdateTrainGroupID(first);
01515 InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01516 }
01517 } break;
01518 }
01519 return cost;
01520 }
01521
01522 void Train::UpdateDeltaXY(Direction direction)
01523 {
01524 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01525 static const uint32 _delta_xy_table[8] = {
01526 MKIT(3, 3, -1, -1),
01527 MKIT(3, 7, -1, -3),
01528 MKIT(3, 3, -1, -1),
01529 MKIT(7, 3, -3, -1),
01530 MKIT(3, 3, -1, -1),
01531 MKIT(3, 7, -1, -3),
01532 MKIT(3, 3, -1, -1),
01533 MKIT(7, 3, -3, -1),
01534 };
01535 #undef MKIT
01536
01537 uint32 x = _delta_xy_table[direction];
01538 this->x_offs = GB(x, 0, 8);
01539 this->y_offs = GB(x, 8, 8);
01540 this->x_extent = GB(x, 16, 8);
01541 this->y_extent = GB(x, 24, 8);
01542 this->z_extent = 6;
01543 }
01544
01545 static void UpdateVarsAfterSwap(Vehicle *v)
01546 {
01547 v->UpdateDeltaXY(v->direction);
01548 v->cur_image = v->GetImage(v->direction);
01549 BeginVehicleMove(v);
01550 VehiclePositionChanged(v);
01551 EndVehicleMove(v);
01552 }
01553
01554 static inline void SetLastSpeed(Vehicle *v, int spd)
01555 {
01556 int old = v->u.rail.last_speed;
01557 if (spd != old) {
01558 v->u.rail.last_speed = spd;
01559 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01560 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01561 }
01562 }
01563 }
01564
01566 static void MarkTrainAsStuck(Vehicle *v)
01567 {
01568 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01569
01570 SetBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01571 v->load_unload_time_rem = 0;
01572
01573
01574 v->cur_speed = 0;
01575 v->subspeed = 0;
01576 SetLastSpeed(v, 0);
01577
01578 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01579 }
01580 }
01581
01582 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01583 {
01584 uint16 flag1 = *swap_flag1;
01585 uint16 flag2 = *swap_flag2;
01586
01587
01588 ClrBit(*swap_flag1, VRF_GOINGUP);
01589 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01590 ClrBit(*swap_flag2, VRF_GOINGUP);
01591 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01592
01593
01594 if (HasBit(flag1, VRF_GOINGUP)) {
01595 SetBit(*swap_flag2, VRF_GOINGDOWN);
01596 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01597 SetBit(*swap_flag2, VRF_GOINGUP);
01598 }
01599 if (HasBit(flag2, VRF_GOINGUP)) {
01600 SetBit(*swap_flag1, VRF_GOINGDOWN);
01601 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01602 SetBit(*swap_flag1, VRF_GOINGUP);
01603 }
01604 }
01605
01606 static void ReverseTrainSwapVeh(Vehicle *v, int l, int r)
01607 {
01608 Vehicle *a, *b;
01609
01610
01611 for (a = v; l != 0; l--) a = a->Next();
01612 for (b = v; r != 0; r--) b = b->Next();
01613
01614 if (a != b) {
01615
01616 {
01617 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01618 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01619 a->vehstatus = tmp;
01620 }
01621
01622 Swap(a->u.rail.track, b->u.rail.track);
01623 Swap(a->direction, b->direction);
01624
01625
01626 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01627 if (b->u.rail.track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01628
01629 Swap(a->x_pos, b->x_pos);
01630 Swap(a->y_pos, b->y_pos);
01631 Swap(a->tile, b->tile);
01632 Swap(a->z_pos, b->z_pos);
01633
01634 SwapTrainFlags(&a->u.rail.flags, &b->u.rail.flags);
01635
01636
01637 UpdateVarsAfterSwap(a);
01638 UpdateVarsAfterSwap(b);
01639
01640
01641 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01642 if (b->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01643 } else {
01644 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01645 UpdateVarsAfterSwap(a);
01646
01647 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01648 }
01649
01650
01651 TrainPowerChanged(v);
01652 }
01653
01654
01660 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01661 {
01662 return (v->type == VEH_TRAIN) ? v : NULL;
01663 }
01664
01665
01672 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01673 {
01674
01675 if (v->type != VEH_TRAIN || !IsFrontEngine(v) || v->vehstatus & VS_CRASHED) return NULL;
01676
01677 TileIndex tile = *(TileIndex*)data;
01678
01679 if (TrainApproachingCrossingTile(v) != tile) return NULL;
01680
01681 return v;
01682 }
01683
01684
01691 static bool TrainApproachingCrossing(TileIndex tile)
01692 {
01693 assert(IsLevelCrossingTile(tile));
01694
01695 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01696 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01697
01698 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01699
01700 dir = ReverseDiagDir(dir);
01701 tile_from = tile + TileOffsByDiagDir(dir);
01702
01703 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01704 }
01705
01706
01713 void UpdateLevelCrossing(TileIndex tile, bool sound)
01714 {
01715 assert(IsLevelCrossingTile(tile));
01716
01717
01718 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || GetCrossingReservation(tile);
01719
01720 if (new_state != IsCrossingBarred(tile)) {
01721 if (new_state && sound) {
01722 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01723 }
01724 SetCrossingBarred(tile, new_state);
01725 MarkTileDirtyByTile(tile);
01726 }
01727 }
01728
01729
01735 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01736 {
01737 if (!IsCrossingBarred(tile)) {
01738 BarCrossing(tile);
01739 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01740 MarkTileDirtyByTile(tile);
01741 }
01742 }
01743
01744
01750 static void AdvanceWagonsBeforeSwap(Vehicle *v)
01751 {
01752 Vehicle *base = v;
01753 Vehicle *first = base;
01754 Vehicle *last = GetLastVehicleInChain(v);
01755 uint length = CountVehiclesInChain(v);
01756
01757 while (length > 2) {
01758 last = last->Previous();
01759 first = first->Next();
01760
01761 int differential = base->u.rail.cached_veh_length - last->u.rail.cached_veh_length;
01762
01763
01764
01765 for (int i = 0; i < differential; i++) TrainController(first, last->Next(), false);
01766
01767 base = first;
01768 length -= 2;
01769 }
01770 }
01771
01772
01778 static void AdvanceWagonsAfterSwap(Vehicle *v)
01779 {
01780
01781 Vehicle *dep = v;
01782 while (dep->Next() != NULL && (dep->u.rail.track == TRACK_BIT_DEPOT || dep->Next()->u.rail.track != TRACK_BIT_DEPOT)) {
01783 dep = dep->Next();
01784 }
01785
01786 Vehicle *leave = dep->Next();
01787
01788 if (leave != NULL) {
01789
01790 int d = TicksToLeaveDepot(dep);
01791
01792 if (d <= 0) {
01793 leave->vehstatus &= ~VS_HIDDEN;
01794 leave->u.rail.track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01795 for (int i = 0; i >= d; i--) TrainController(leave, NULL, false);
01796 }
01797 } else {
01798 dep = NULL;
01799 }
01800
01801 Vehicle *base = v;
01802 Vehicle *first = base;
01803 Vehicle *last = GetLastVehicleInChain(v);
01804 uint length = CountVehiclesInChain(v);
01805
01806
01807
01808 bool nomove = (dep == NULL);
01809
01810 while (length > 2) {
01811
01812
01813 if (base == dep) break;
01814
01815
01816 if (last == dep) nomove = true;
01817
01818 last = last->Previous();
01819 first = first->Next();
01820
01821 int differential = last->u.rail.cached_veh_length - base->u.rail.cached_veh_length;
01822
01823
01824 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL), false);
01825
01826 base = first;
01827 length -= 2;
01828 }
01829 }
01830
01831
01832 static void ReverseTrainDirection(Vehicle *v)
01833 {
01834 if (IsRailDepotTile(v->tile)) {
01835 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01836 }
01837
01838
01839 FreeTrainTrackReservation(v);
01840
01841
01842 TileIndex crossing = TrainApproachingCrossingTile(v);
01843
01844
01845 int r = CountVehiclesInChain(v) - 1;
01846
01847 AdvanceWagonsBeforeSwap(v);
01848
01849
01850 int l = 0;
01851 do {
01852 ReverseTrainSwapVeh(v, l++, r--);
01853 } while (l <= r);
01854
01855 AdvanceWagonsAfterSwap(v);
01856
01857 if (IsRailDepotTile(v->tile)) {
01858 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01859 }
01860
01861 ToggleBit(v->u.rail.flags, VRF_TOGGLE_REVERSE);
01862
01863 ClrBit(v->u.rail.flags, VRF_REVERSING);
01864
01865
01866 TrainConsistChanged(v, true);
01867
01868
01869 for (Vehicle *u = v; u != NULL; u = u->Next()) u->cur_image = u->GetImage(u->direction);
01870
01871
01872 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01873
01874
01875 crossing = TrainApproachingCrossingTile(v);
01876 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01877
01878
01879 if (v->u.rail.track & TRACK_BIT_DEPOT) {
01880
01881 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01882 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01883 return;
01884 }
01885
01886
01887
01888 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
01889 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01890
01891 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01892
01893
01894 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01895 HasSignalOnTrackdir(v->tile, GetVehicleTrackdir(v)) &&
01896 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->u.rail.track))));
01897
01898 if (IsRailwayStationTile(v->tile)) SetRailwayStationPlatformReservation(v->tile, TrackdirToExitdir(GetVehicleTrackdir(v)), true);
01899 if (TryPathReserve(v, false, first_tile_okay)) {
01900
01901 CheckNextTrainTile(v);
01902 } else if (v->current_order.GetType() != OT_LOADING) {
01903
01904 MarkTrainAsStuck(v);
01905 }
01906 } else if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01907
01908 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01909 v->load_unload_time_rem = 0;
01910 }
01911 }
01912
01919 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01920 {
01921 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01922
01923 Vehicle *v = GetVehicle(p1);
01924
01925 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01926
01927 if (p2 != 0) {
01928
01929
01930 if (IsMultiheaded(v) || HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) {
01931 return_cmd_error(STR_ONLY_TURN_SINGLE_UNIT);
01932 }
01933
01934 Vehicle *front = v->First();
01935
01936 if (CheckTrainStoppedInDepot(front) < 0) {
01937 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01938 }
01939
01940 if (flags & DC_EXEC) {
01941 ToggleBit(v->u.rail.flags, VRF_REVERSE_DIRECTION);
01942 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
01943 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
01944 }
01945 } else {
01946
01947 if (v->vehstatus & VS_CRASHED || v->breakdown_ctr != 0) return CMD_ERROR;
01948
01949 if (flags & DC_EXEC) {
01950
01951 if (v->current_order.IsType(OT_LOADING)) {
01952 const Vehicle *last = v;
01953 while (last->Next() != NULL) last = last->Next();
01954
01955
01956 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01957 v->LeaveStation();
01958 }
01959 }
01960
01961 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL && v->cur_speed != 0) {
01962 ToggleBit(v->u.rail.flags, VRF_REVERSING);
01963 } else {
01964 v->cur_speed = 0;
01965 SetLastSpeed(v, 0);
01966 HideFillingPercent(&v->fill_percent_te_id);
01967 ReverseTrainDirection(v);
01968 }
01969 }
01970 }
01971 return CommandCost();
01972 }
01973
01980 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01981 {
01982 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01983
01984 Vehicle *v = GetVehicle(p1);
01985
01986 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01987
01988 if (flags & DC_EXEC) v->u.rail.force_proceed = 0x50;
01989
01990 return CommandCost();
01991 }
01992
02003 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02004 {
02005 CargoID new_cid = GB(p2, 0, 8);
02006 byte new_subtype = GB(p2, 8, 8);
02007 bool only_this = HasBit(p2, 16);
02008
02009 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02010
02011 Vehicle *v = GetVehicle(p1);
02012
02013 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
02014 if (CheckTrainStoppedInDepot(v) < 0) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02015 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_REFIT_DESTROYED_VEHICLE);
02016
02017
02018 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02019
02020 CommandCost cost(EXPENSES_TRAIN_RUN);
02021 uint num = 0;
02022
02023 do {
02024
02025
02026
02027 if (!CanRefitTo(v->engine_type, new_cid)) continue;
02028
02029 const Engine *e = GetEngine(v->engine_type);
02030 if (e->CanCarryCargo()) {
02031 uint16 amount = CALLBACK_FAILED;
02032
02033 if (HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_REFIT_CAPACITY)) {
02034
02035 CargoID temp_cid = v->cargo_type;
02036 byte temp_subtype = v->cargo_subtype;
02037 v->cargo_type = new_cid;
02038 v->cargo_subtype = new_subtype;
02039
02040 amount = GetVehicleCallback(CBID_VEHICLE_REFIT_CAPACITY, 0, 0, v->engine_type, v);
02041
02042 v->cargo_type = temp_cid;
02043 v->cargo_subtype = temp_subtype;
02044 }
02045
02046 if (amount == CALLBACK_FAILED) {
02047 CargoID old_cid = e->GetDefaultCargoType();
02048
02049
02050
02051
02052 amount = e->u.rail.capacity;
02053 switch (old_cid) {
02054 case CT_PASSENGERS: break;
02055 case CT_MAIL:
02056 case CT_GOODS: amount *= 2; break;
02057 default: amount *= 4; break;
02058 }
02059 switch (new_cid) {
02060 case CT_PASSENGERS: break;
02061 case CT_MAIL:
02062 case CT_GOODS: amount /= 2; break;
02063 default: amount /= 4; break;
02064 }
02065 }
02066
02067 if (new_cid != v->cargo_type) {
02068 cost.AddCost(GetRefitCost(v->engine_type));
02069 }
02070
02071 num += amount;
02072 if (flags & DC_EXEC) {
02073 v->cargo.Truncate((v->cargo_type == new_cid) ? amount : 0);
02074 v->cargo_type = new_cid;
02075 v->cargo_cap = amount;
02076 v->cargo_subtype = new_subtype;
02077 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
02078 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02079 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02080 }
02081 }
02082 } while ((v = v->Next()) != NULL && !only_this);
02083
02084 _returned_refit_capacity = num;
02085
02086
02087 if (flags & DC_EXEC) TrainConsistChanged(GetVehicle(p1)->First(), false);
02088
02089 return cost;
02090 }
02091
02092 struct TrainFindDepotData {
02093 uint best_length;
02094 TileIndex tile;
02095 Owner owner;
02100 bool reverse;
02101 };
02102
02103 static bool NtpCallbFindDepot(TileIndex tile, TrainFindDepotData *tfdd, int track, uint length)
02104 {
02105 if (IsTileType(tile, MP_RAILWAY) &&
02106 IsTileOwner(tile, tfdd->owner) &&
02107 IsRailDepot(tile)) {
02108
02109 tfdd->best_length = length / DIAG_FACTOR;
02110 tfdd->tile = tile;
02111 return true;
02112 }
02113
02114 return false;
02115 }
02116
02119 static TrainFindDepotData FindClosestTrainDepot(Vehicle *v, int max_distance)
02120 {
02121 assert(!(v->vehstatus & VS_CRASHED));
02122
02123 TrainFindDepotData tfdd;
02124 tfdd.owner = v->owner;
02125 tfdd.reverse = false;
02126
02127 if (IsRailDepotTile(v->tile)) {
02128 tfdd.tile = v->tile;
02129 tfdd.best_length = 0;
02130 return tfdd;
02131 }
02132
02133 PBSTileInfo origin = FollowTrainReservation(v);
02134 if (IsRailDepotTile(origin.tile)) {
02135 tfdd.tile = origin.tile;
02136 tfdd.best_length = 0;
02137 return tfdd;
02138 }
02139
02140 tfdd.best_length = UINT_MAX;
02141
02142 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02143 if ((_settings_game.pf.reserve_paths || HasReservedTracks(v->tile, v->u.rail.track)) && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02144
02145 switch (pathfinder) {
02146 case VPF_YAPF: {
02147 bool found = YapfFindNearestRailDepotTwoWay(v, max_distance, NPF_INFINITE_PENALTY, &tfdd.tile, &tfdd.reverse);
02148 tfdd.best_length = found ? max_distance / 2 : UINT_MAX;
02149 } break;
02150
02151 case VPF_NPF: {
02152 const Vehicle *last = GetLastVehicleInChain(v);
02153 Trackdir trackdir = GetVehicleTrackdir(v);
02154 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
02155
02156 assert(trackdir != INVALID_TRACKDIR);
02157 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);
02158 if (ftd.best_bird_dist == 0) {
02159
02160 tfdd.tile = ftd.node.tile;
02161
02162
02163
02164
02165 tfdd.best_length = ftd.best_path_dist / NPF_TILE_LENGTH;
02166 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) tfdd.reverse = true;
02167 }
02168 } break;
02169
02170 default:
02171 case VPF_NTP: {
02172
02173 DiagDirection i = TrainExitDir(v->direction, v->u.rail.track);
02174 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02175 if (tfdd.best_length == UINT_MAX){
02176 tfdd.reverse = true;
02177
02178 i = TrainExitDir(ReverseDir(v->direction), v->u.rail.track);
02179 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02180 }
02181 } break;
02182 }
02183
02184 return tfdd;
02185 }
02186
02187 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02188 {
02189 TrainFindDepotData tfdd = FindClosestTrainDepot(this, 0);
02190 if (tfdd.best_length == UINT_MAX) return false;
02191
02192 if (location != NULL) *location = tfdd.tile;
02193 if (destination != NULL) *destination = GetDepotByTile(tfdd.tile)->index;
02194 if (reverse != NULL) *reverse = tfdd.reverse;
02195
02196 return true;
02197 }
02198
02207 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02208 {
02209 if (p2 & DEPOT_MASS_SEND) {
02210
02211 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02212 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02213 }
02214
02215 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02216
02217 Vehicle *v = GetVehicle(p1);
02218
02219 if (v->type != VEH_TRAIN) return CMD_ERROR;
02220
02221 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02222 }
02223
02224
02225 void OnTick_Train()
02226 {
02227 _age_cargo_skip_counter = (_age_cargo_skip_counter == 0) ? 184 : (_age_cargo_skip_counter - 1);
02228 }
02229
02230 static const int8 _vehicle_smoke_pos[8] = {
02231 1, 1, 1, 0, -1, -1, -1, 0
02232 };
02233
02234 static void HandleLocomotiveSmokeCloud(const Vehicle *v)
02235 {
02236 bool sound = false;
02237
02238 if (v->vehstatus & VS_TRAIN_SLOWING || v->load_unload_time_rem != 0 || v->cur_speed < 2) {
02239 return;
02240 }
02241
02242 const Vehicle *u = v;
02243
02244 do {
02245 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02246 int effect_offset = GB(v->u.rail.cached_vis_effect, 0, 4) - 8;
02247 byte effect_type = GB(v->u.rail.cached_vis_effect, 4, 2);
02248 bool disable_effect = HasBit(v->u.rail.cached_vis_effect, 6);
02249
02250
02251 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02252 disable_effect ||
02253 v->vehstatus & VS_HIDDEN) {
02254 continue;
02255 }
02256
02257
02258 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02259
02260
02261 if (!HasPowerOnRail(v->u.rail.railtype, GetTileRailType(v->tile))) continue;
02262
02263 if (effect_type == 0) {
02264
02265 effect_type = rvi->engclass;
02266 } else {
02267 effect_type--;
02268 }
02269
02270 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02271 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02272
02273 if (HasBit(v->u.rail.flags, VRF_REVERSE_DIRECTION)) {
02274 x = -x;
02275 y = -y;
02276 }
02277
02278 switch (effect_type) {
02279 case 0:
02280
02281 if (GB(v->tick_counter, 0, 4) == 0) {
02282 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02283 sound = true;
02284 }
02285 break;
02286
02287 case 1:
02288
02289 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02290 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02291 sound = true;
02292 }
02293 break;
02294
02295 case 2:
02296
02297 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02298 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02299 sound = true;
02300 }
02301 break;
02302
02303 default:
02304 break;
02305 }
02306 } while ((v = v->Next()) != NULL);
02307
02308 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02309 }
02310
02311 void Train::PlayLeaveStationSound() const
02312 {
02313 static const SoundFx sfx[] = {
02314 SND_04_TRAIN,
02315 SND_0A_TRAIN_HORN,
02316 SND_0A_TRAIN_HORN,
02317 SND_47_MAGLEV_2,
02318 SND_41_MAGLEV
02319 };
02320
02321 if (PlayVehicleSound(this, VSE_START)) return;
02322
02323 EngineID engtype = this->engine_type;
02324 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02325 }
02326
02328 static void CheckNextTrainTile(Vehicle *v)
02329 {
02330
02331 if (_settings_game.pf.path_backoff_interval == 255) return;
02332
02333
02334 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->u.rail.track & TRACK_BIT_DEPOT) return;
02335
02336 if (IsRailwayStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02337
02338 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02339
02340 Trackdir td = GetVehicleTrackdir(v);
02341
02342
02343 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02344 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02345 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02346
02347 CFollowTrackRail ft(v);
02348 if (!ft.Follow(v->tile, td)) return;
02349
02350 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02351
02352 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02353 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02354
02355 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02356 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
02357 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02358 }
02359 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02360 }
02361 }
02362 }
02363 }
02364
02365 static bool CheckTrainStayInDepot(Vehicle *v)
02366 {
02367
02368 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
02369 if (u->u.rail.track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02370 }
02371
02372
02373 if (v->u.rail.cached_power == 0) {
02374 v->vehstatus |= VS_STOPPED;
02375 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02376 return true;
02377 }
02378
02379 SigSegState seg_state;
02380
02381 if (v->u.rail.force_proceed == 0) {
02382
02383 if (++v->load_unload_time_rem < 37) {
02384 InvalidateWindowClasses(WC_TRAINS_LIST);
02385 return true;
02386 }
02387
02388 v->load_unload_time_rem = 0;
02389
02390 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02391 if (seg_state == SIGSEG_FULL || GetDepotWaypointReservation(v->tile)) {
02392
02393 InvalidateWindowClasses(WC_TRAINS_LIST);
02394 return true;
02395 }
02396 } else {
02397 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02398 }
02399
02400
02401 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->u.rail.force_proceed == 0) {
02402
02403 InvalidateWindowClasses(WC_TRAINS_LIST);
02404 MarkTrainAsStuck(v);
02405 return true;
02406 }
02407
02408 SetDepotWaypointReservation(v->tile, true);
02409 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02410
02411 VehicleServiceInDepot(v);
02412 InvalidateWindowClasses(WC_TRAINS_LIST);
02413 v->PlayLeaveStationSound();
02414
02415 v->u.rail.track = TRACK_BIT_X;
02416 if (v->direction & 2) v->u.rail.track = TRACK_BIT_Y;
02417
02418 v->vehstatus &= ~VS_HIDDEN;
02419 v->cur_speed = 0;
02420
02421 v->UpdateDeltaXY(v->direction);
02422 v->cur_image = v->GetImage(v->direction);
02423 VehiclePositionChanged(v);
02424 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02425 UpdateTrainAcceleration(v);
02426 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02427
02428 return false;
02429 }
02430
02432 static void ClearPathReservation(const Vehicle *v, TileIndex tile, Trackdir track_dir)
02433 {
02434 DiagDirection dir = TrackdirToExitdir(track_dir);
02435
02436 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02437
02438 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02439 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02440
02441 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02442
02443 SetTunnelBridgeReservation(tile, false);
02444 SetTunnelBridgeReservation(end, false);
02445
02446 if (_settings_client.gui.show_track_reservation) {
02447 MarkTileDirtyByTile(tile);
02448 MarkTileDirtyByTile(end);
02449 }
02450 }
02451 }
02452 } else if (IsRailwayStationTile(tile)) {
02453 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02454
02455
02456 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02457 SetRailwayStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02458 }
02459 } else {
02460
02461 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02462 }
02463 }
02464
02466 void FreeTrainTrackReservation(const Vehicle *v, TileIndex origin, Trackdir orig_td)
02467 {
02468 assert(IsFrontEngine(v));
02469
02470 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02471 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : GetVehicleTrackdir(v);
02472 bool free_tile = tile != v->tile || !(IsRailwayStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02473 StationID station_id = IsRailwayStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02474
02475
02476 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02477
02478 CFollowTrackRail ft(v, GetRailTypeInfo(v->u.rail.railtype)->compatible_railtypes);
02479 while (ft.Follow(tile, td)) {
02480 tile = ft.m_new_tile;
02481 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02482 td = RemoveFirstTrackdir(&bits);
02483 assert(bits == TRACKDIR_BIT_NONE);
02484
02485 if (!IsValidTrackdir(td)) break;
02486
02487 if (IsTileType(tile, MP_RAILWAY)) {
02488 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02489
02490 UnreserveRailTrack(tile, TrackdirToTrack(td));
02491 break;
02492 }
02493 if (HasPbsSignalOnTrackdir(tile, td)) {
02494 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02495
02496 break;
02497 } else {
02498
02499 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02500 MarkTileDirtyByTile(tile);
02501 }
02502 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02503 break;
02504 }
02505 }
02506
02507
02508 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);
02509
02510 free_tile = true;
02511 }
02512 }
02513
02515 struct TrainTrackFollowerData {
02516 TileIndex dest_coords;
02517 StationID station_index;
02518 uint best_bird_dist;
02519 uint best_track_dist;
02520 TrackdirByte best_track;
02521 };
02522
02523 static bool NtpCallbFindStation(TileIndex tile, TrainTrackFollowerData *ttfd, Trackdir track, uint length)
02524 {
02525
02526 if (ttfd->dest_coords == 0) return false;
02527
02528
02529 if ((ttfd->station_index == INVALID_STATION && tile == ttfd->dest_coords) || (
02530 IsTileType(tile, MP_STATION) &&
02531 IsRailwayStation(tile) &&
02532 GetStationIndex(tile) == ttfd->station_index
02533 )) {
02534
02535
02536
02537
02538
02539 ttfd->best_track = track;
02540 ttfd->best_bird_dist = 0;
02541 return true;
02542 } else {
02543
02544 uint dist = DistanceManhattan(tile, ttfd->dest_coords);
02545 if (dist < ttfd->best_bird_dist) {
02546 ttfd->best_bird_dist = dist;
02547 ttfd->best_track = track;
02548 }
02549 return false;
02550 }
02551 }
02552
02553 static void FillWithStationData(TrainTrackFollowerData *fd, const Vehicle *v)
02554 {
02555 fd->dest_coords = v->dest_tile;
02556 fd->station_index = v->current_order.IsType(OT_GOTO_STATION) ? v->current_order.GetDestination() : INVALID_STATION;
02557 }
02558
02559 static const byte _initial_tile_subcoord[6][4][3] = {
02560 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02561 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02562 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02563 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02564 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02565 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02566 };
02567
02568 static const byte _search_directions[6][4] = {
02569 { 0, 9, 2, 9 },
02570 { 9, 1, 9, 3 },
02571 { 9, 0, 3, 9 },
02572 { 1, 9, 9, 2 },
02573 { 3, 2, 9, 9 },
02574 { 9, 9, 1, 0 },
02575 };
02576
02577 static const byte _pick_track_table[6] = {1, 3, 2, 2, 0, 0};
02578
02591 static Track DoTrainPathfind(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02592 {
02593 Track best_track;
02594
02595 #ifdef PF_BENCHMARK
02596 TIC()
02597 #endif
02598
02599 if (path_not_found) *path_not_found = false;
02600
02601 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02602 if (do_track_reservation && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02603
02604 switch (pathfinder) {
02605 case VPF_YAPF: {
02606 Trackdir trackdir = YapfChooseRailTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02607 if (trackdir != INVALID_TRACKDIR) {
02608 best_track = TrackdirToTrack(trackdir);
02609 } else {
02610 best_track = FindFirstTrack(tracks);
02611 }
02612 } break;
02613
02614 case VPF_NPF: {
02615 void *perf = NpfBeginInterval();
02616
02617 NPFFindStationOrTileData fstd;
02618 NPFFillWithOrderData(&fstd, v, do_track_reservation);
02619
02620 PBSTileInfo origin = FollowTrainReservation(v);
02621 assert(IsValidTrackdir(origin.trackdir));
02622
02623 NPFFoundTargetData ftd = NPFRouteToStationOrTile(origin.tile, origin.trackdir, true, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
02624
02625 if (dest != NULL) {
02626 dest->tile = ftd.node.tile;
02627 dest->trackdir = (Trackdir)ftd.node.direction;
02628 dest->okay = ftd.res_okay;
02629 }
02630
02631 if (ftd.best_trackdir == INVALID_TRACKDIR) {
02632
02633
02634
02635 best_track = FindFirstTrack(tracks);
02636 } else {
02637
02638
02639
02640
02641 if (ftd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02642
02643 best_track = TrackdirToTrack(ftd.best_trackdir);
02644 }
02645
02646 int time = NpfEndInterval(perf);
02647 DEBUG(yapf, 4, "[NPFT] %d us - %d rounds - %d open - %d closed -- ", time, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
02648 } break;
02649
02650 default:
02651 case VPF_NTP: {
02652 void *perf = NpfBeginInterval();
02653
02654 TrainTrackFollowerData fd;
02655 FillWithStationData(&fd, v);
02656
02657
02658 fd.best_bird_dist = UINT_MAX;
02659 fd.best_track_dist = UINT_MAX;
02660 fd.best_track = INVALID_TRACKDIR;
02661
02662 NewTrainPathfind(tile - TileOffsByDiagDir(enterdir), v->dest_tile,
02663 v->u.rail.compatible_railtypes, enterdir, (NTPEnumProc*)NtpCallbFindStation, &fd);
02664
02665
02666 if (fd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02667
02668 if (fd.best_track == INVALID_TRACKDIR) {
02669
02670 best_track = FindFirstTrack(tracks);
02671 } else {
02672 best_track = TrackdirToTrack(fd.best_track);
02673 }
02674
02675 int time = NpfEndInterval(perf);
02676 DEBUG(yapf, 4, "[NTPT] %d us - %d rounds - %d open - %d closed -- ", time, 0, 0, 0);
02677 } break;
02678 }
02679
02680 #ifdef PF_BENCHMARK
02681 TOC("PF time = ", 1)
02682 #endif
02683
02684 return best_track;
02685 }
02686
02692 static PBSTileInfo ExtendTrainReservation(const Vehicle *v, TrackBits *new_tracks, DiagDirection *enterdir)
02693 {
02694 bool no_90deg_turns = _settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg;
02695 PBSTileInfo origin = FollowTrainReservation(v);
02696
02697 CFollowTrackRail ft(v);
02698
02699 TileIndex tile = origin.tile;
02700 Trackdir cur_td = origin.trackdir;
02701 while (ft.Follow(tile, cur_td)) {
02702 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02703
02704 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02705 }
02706
02707 if (no_90deg_turns) {
02708 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02709 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02710 }
02711
02712
02713 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRailTile(ft.m_new_tile));
02714 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02715
02716
02717
02718
02719
02720
02721 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02722
02723
02724
02725 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02726
02727
02728 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02729 if (enterdir) *enterdir = ft.m_exitdir;
02730 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02731 }
02732
02733 tile = ft.m_new_tile;
02734 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02735
02736 if (IsSafeWaitingPosition(v, tile, cur_td, true, no_90deg_turns)) {
02737 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, no_90deg_turns);
02738 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02739
02740 return PBSTileInfo(tile, cur_td, true);
02741 }
02742
02743 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02744 }
02745
02746 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02747
02748 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02749 }
02750
02751
02752 tile = origin.tile;
02753 cur_td = origin.trackdir;
02754 TileIndex stopped = ft.m_old_tile;
02755 Trackdir stopped_td = ft.m_old_td;
02756 while (tile != stopped || cur_td != stopped_td) {
02757 if (!ft.Follow(tile, cur_td)) break;
02758
02759 if (no_90deg_turns) {
02760 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02761 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02762 }
02763 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02764
02765 tile = ft.m_new_tile;
02766 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02767
02768 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02769 }
02770
02771
02772 return PBSTileInfo();
02773 }
02774
02785 static bool TryReserveSafeTrack(const Vehicle *v, TileIndex tile, Trackdir td, bool override_tailtype)
02786 {
02787 if (_settings_game.pf.pathfinder_for_trains == VPF_YAPF) {
02788 return YapfRailFindNearestSafeTile(v, tile, td, override_tailtype);
02789 } else {
02790 return NPFRouteToSafeTile(v, tile, td, override_tailtype).res_okay;
02791 }
02792 }
02793
02795 class VehicleOrderSaver
02796 {
02797 private:
02798 Vehicle *v;
02799 Order old_order;
02800 TileIndex old_dest_tile;
02801 StationID old_last_station_visited;
02802 VehicleOrderID index;
02803
02804 public:
02805 VehicleOrderSaver(Vehicle *_v) :
02806 v(_v),
02807 old_order(_v->current_order),
02808 old_dest_tile(_v->dest_tile),
02809 old_last_station_visited(_v->last_station_visited),
02810 index(_v->cur_order_index)
02811 {
02812 }
02813
02814 ~VehicleOrderSaver()
02815 {
02816 this->v->current_order = this->old_order;
02817 this->v->dest_tile = this->old_dest_tile;
02818 this->v->last_station_visited = this->old_last_station_visited;
02819 }
02820
02826 bool SwitchToNextOrder(bool skip_first)
02827 {
02828 if (this->v->GetNumOrders() == 0) return false;
02829
02830 if (skip_first) ++this->index;
02831
02832 int conditional_depth = 0;
02833
02834 do {
02835
02836 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02837
02838 Order *order = GetVehicleOrder(this->v, this->index);
02839 assert(order != NULL);
02840
02841 switch (order->GetType()) {
02842 case OT_GOTO_DEPOT:
02843
02844 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02845 case OT_GOTO_STATION:
02846 case OT_GOTO_WAYPOINT:
02847 this->v->current_order = *order;
02848 UpdateOrderDest(this->v, order);
02849 return true;
02850 case OT_CONDITIONAL: {
02851 if (conditional_depth > this->v->GetNumOrders()) return false;
02852 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02853 if (next != INVALID_VEH_ORDER_ID) {
02854 conditional_depth++;
02855 this->index = next;
02856
02857 continue;
02858 }
02859 break;
02860 }
02861 default:
02862 break;
02863 }
02864
02865
02866 ++this->index;
02867 } while (this->index != this->v->cur_order_index);
02868
02869 return false;
02870 }
02871 };
02872
02873
02874 static Track ChooseTrainTrack(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02875 {
02876 Track best_track = INVALID_TRACK;
02877 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02878 bool changed_signal = false;
02879
02880 assert((tracks & ~TRACK_BIT_MASK) == 0);
02881
02882 if (got_reservation != NULL) *got_reservation = false;
02883
02884
02885 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02886
02887 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02888
02889
02890 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02891 Track track = FindFirstTrack(tracks);
02892
02893 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02894 do_track_reservation = true;
02895 changed_signal = true;
02896 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02897 } else if (!do_track_reservation) {
02898 return track;
02899 }
02900 best_track = track;
02901 }
02902
02903 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02904 DiagDirection dest_enterdir = enterdir;
02905 if (do_track_reservation) {
02906
02907
02908
02909 CheckIfTrainNeedsService(v);
02910 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02911
02912 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02913 if (res_dest.tile == INVALID_TILE) {
02914
02915 if (mark_stuck) MarkTrainAsStuck(v);
02916 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02917 return FindFirstTrack(tracks);
02918 }
02919 }
02920
02921
02922 VehicleOrderSaver orders(v);
02923
02924
02925
02926
02927
02928
02929
02930 if (v->current_order.IsType(OT_LEAVESTATION)) {
02931 orders.SwitchToNextOrder(false);
02932 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02933 v->current_order.IsType(OT_GOTO_STATION) ?
02934 IsRailwayStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02935 v->tile == v->dest_tile))) {
02936 orders.SwitchToNextOrder(true);
02937 }
02938
02939 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02940
02941 bool path_not_found = false;
02942 TileIndex new_tile = res_dest.tile;
02943
02944 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02945 if (new_tile == tile) best_track = next_track;
02946
02947
02948 if (path_not_found) {
02949
02950 if (!HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02951
02952 SetBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02953
02954 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02955 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02956 SetDParam(0, v->index);
02957 AddNewsItem(
02958 STR_TRAIN_IS_LOST,
02959 NS_ADVICE,
02960 v->index,
02961 0);
02962 }
02963 }
02964 } else {
02965
02966 if (HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02967
02968 ClrBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02969
02970 }
02971 }
02972 }
02973
02974
02975 if (!do_track_reservation) return best_track;
02976
02977
02978 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02979 if (mark_stuck) MarkTrainAsStuck(v);
02980 FreeTrainTrackReservation(v);
02981 return best_track;
02982 }
02983
02984
02985 if (res_dest.tile == INVALID_TILE) {
02986
02987 PBSTileInfo origin = FollowTrainReservation(v);
02988 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02989 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02990 best_track = FindFirstTrack(res);
02991 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
02992 if (got_reservation != NULL) *got_reservation = true;
02993 if (changed_signal) MarkTileDirtyByTile(tile);
02994 } else {
02995 FreeTrainTrackReservation(v);
02996 if (mark_stuck) MarkTrainAsStuck(v);
02997 }
02998 return best_track;
02999 }
03000
03001 if (got_reservation != NULL) *got_reservation = true;
03002
03003
03004 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
03005
03006 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
03007 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
03008 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
03009 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
03010 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
03011 }
03012
03013
03014 if (orders.SwitchToNextOrder(true)) {
03015 PBSTileInfo cur_dest;
03016 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
03017 if (cur_dest.tile != INVALID_TILE) {
03018 res_dest = cur_dest;
03019 if (res_dest.okay) continue;
03020
03021 FreeTrainTrackReservation(v);
03022 if (mark_stuck) MarkTrainAsStuck(v);
03023 if (got_reservation != NULL) *got_reservation = false;
03024 changed_signal = false;
03025 break;
03026 }
03027 }
03028
03029 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
03030 FreeTrainTrackReservation(v);
03031 if (mark_stuck) MarkTrainAsStuck(v);
03032 if (got_reservation != NULL) *got_reservation = false;
03033 changed_signal = false;
03034 }
03035 break;
03036 }
03037
03038 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
03039
03040 if (changed_signal) MarkTileDirtyByTile(tile);
03041
03042 return best_track;
03043 }
03044
03053 bool TryPathReserve(Vehicle *v, bool mark_as_stuck, bool first_tile_okay)
03054 {
03055 assert(v->type == VEH_TRAIN && IsFrontEngine(v));
03056
03057
03058
03059
03060 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03061 if (GetDepotWaypointReservation(v->tile)) {
03062 if (mark_as_stuck) MarkTrainAsStuck(v);
03063 return false;
03064 } else {
03065
03066 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
03067 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
03068 }
03069 }
03070
03071
03072 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
03073 TileIndex next_tile = TileAddByDiagDir(v->tile, dir);
03074 if (IsTileType(next_tile, MP_RAILWAY) && HasReservedTracks(next_tile, DiagdirReachesTracks(dir))) {
03075
03076 Trackdir td = FindFirstTrackdir(TrackBitsToTrackdirBits(GetReservedTrackbits(next_tile)) & DiagdirReachesTrackdirs(dir));
03077 if (HasSignalOnTrackdir(next_tile, td) && HasSignalOnTrackdir(next_tile, ReverseTrackdir(td)) &&
03078 !IsPbsSignal(GetSignalType(next_tile, TrackdirToTrack(td)))) {
03079
03080 if (mark_as_stuck) MarkTrainAsStuck(v);
03081 return false;
03082 }
03083 }
03084
03085 bool other_train = false;
03086 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
03087
03088 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
03089
03090 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03091 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03092 return true;
03093 }
03094
03095
03096
03097
03098 if (other_train && v->tile != origin.tile) {
03099 if (mark_as_stuck) MarkTrainAsStuck(v);
03100 return false;
03101 }
03102
03103
03104 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03105 SetDepotWaypointReservation(v->tile, true);
03106 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
03107 }
03108
03109 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
03110 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
03111 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
03112
03113 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
03114
03115 bool res_made = false;
03116 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
03117
03118 if (!res_made) {
03119
03120 if (v->u.rail.track & TRACK_BIT_DEPOT) SetDepotWaypointReservation(v->tile, false);
03121 return false;
03122 }
03123
03124 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03125 v->load_unload_time_rem = 0;
03126 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03127 }
03128 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03129 return true;
03130 }
03131
03132
03133 static bool CheckReverseTrain(Vehicle *v)
03134 {
03135 if (_settings_game.difficulty.line_reverse_mode != 0 ||
03136 v->u.rail.track == TRACK_BIT_DEPOT || v->u.rail.track == TRACK_BIT_WORMHOLE ||
03137 !(v->direction & 1)) {
03138 return false;
03139 }
03140
03141 uint reverse_best = 0;
03142
03143 assert(v->u.rail.track);
03144
03145 switch (_settings_game.pf.pathfinder_for_trains) {
03146 case VPF_YAPF:
03147 reverse_best = YapfCheckReverseTrain(v);
03148 break;
03149
03150 case VPF_NPF: {
03151 NPFFindStationOrTileData fstd;
03152 NPFFoundTargetData ftd;
03153 Vehicle *last = GetLastVehicleInChain(v);
03154
03155 NPFFillWithOrderData(&fstd, v);
03156
03157 Trackdir trackdir = GetVehicleTrackdir(v);
03158 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
03159 assert(trackdir != INVALID_TRACKDIR);
03160 assert(trackdir_rev != INVALID_TRACKDIR);
03161
03162 ftd = NPFRouteToStationOrTileTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
03163 if (ftd.best_bird_dist != 0) {
03164
03165 reverse_best = false;
03166 } else {
03167 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) {
03168 reverse_best = true;
03169 } else {
03170 reverse_best = false;
03171 }
03172 }
03173 } break;
03174
03175 default:
03176 case VPF_NTP: {
03177 TrainTrackFollowerData fd;
03178 FillWithStationData(&fd, v);
03179
03180 int i = _search_directions[FindFirstTrack(v->u.rail.track)][DirToDiagDir(v->direction)];
03181
03182 int best_track = -1;
03183 uint reverse = 0;
03184 uint best_bird_dist = 0;
03185 uint best_track_dist = 0;
03186
03187 for (;;) {
03188 fd.best_bird_dist = UINT_MAX;
03189 fd.best_track_dist = UINT_MAX;
03190
03191 NewTrainPathfind(v->tile, v->dest_tile, v->u.rail.compatible_railtypes, (DiagDirection)(reverse ^ i), (NTPEnumProc*)NtpCallbFindStation, &fd);
03192
03193 if (best_track != -1) {
03194 if (best_bird_dist != 0) {
03195 if (fd.best_bird_dist != 0) {
03196
03197 if (fd.best_bird_dist > best_bird_dist) goto bad;
03198 if (fd.best_bird_dist < best_bird_dist) goto good;
03199 } else {
03200
03201 goto good;
03202 }
03203 } else {
03204 if (fd.best_bird_dist != 0) {
03205
03206 goto bad;
03207 } else {
03208
03209 if (fd.best_track_dist > best_track_dist) goto bad;
03210 if (fd.best_track_dist < best_track_dist) goto good;
03211 }
03212 }
03213
03214
03215
03216 int r = GB(Random(), 0, 8);
03217 if (_pick_track_table[i] == (v->direction & 3)) r += 80;
03218 if (_pick_track_table[best_track] == (v->direction & 3)) r -= 80;
03219 if (r <= 127) goto bad;
03220 }
03221 good:;
03222 best_track = i;
03223 best_bird_dist = fd.best_bird_dist;
03224 best_track_dist = fd.best_track_dist;
03225 reverse_best = reverse;
03226 bad:;
03227 if (reverse != 0) break;
03228 reverse = 2;
03229 }
03230 } break;
03231 }
03232
03233 return reverse_best != 0;
03234 }
03235
03236 TileIndex Train::GetOrderStationLocation(StationID station)
03237 {
03238 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
03239
03240 const Station *st = GetStation(station);
03241 if (!(st->facilities & FACIL_TRAIN)) {
03242
03243 this->cur_order_index++;
03244 return 0;
03245 }
03246
03247 return st->xy;
03248 }
03249
03250 void Train::MarkDirty()
03251 {
03252 Vehicle *v = this;
03253 do {
03254 v->cur_image = v->GetImage(v->direction);
03255 MarkSingleVehicleDirty(v);
03256 } while ((v = v->Next()) != NULL);
03257
03258
03259 TrainCargoChanged(this);
03260 UpdateTrainAcceleration(this);
03261 }
03262
03273 static int UpdateTrainSpeed(Vehicle *v)
03274 {
03275 uint accel;
03276
03277 if (v->vehstatus & VS_STOPPED || HasBit(v->u.rail.flags, VRF_REVERSING) || HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03278 switch (_settings_game.vehicle.train_acceleration_model) {
03279 default: NOT_REACHED();
03280 case TAM_ORIGINAL: accel = v->acceleration * -4; break;
03281 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_BRAKE); break;
03282 }
03283 } else {
03284 switch (_settings_game.vehicle.train_acceleration_model) {
03285 default: NOT_REACHED();
03286 case TAM_ORIGINAL: accel = v->acceleration * 2; break;
03287 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_ACCEL); break;
03288 }
03289 }
03290
03291 uint spd = v->subspeed + accel;
03292 v->subspeed = (byte)spd;
03293 {
03294 int tempmax = v->max_speed;
03295 if (v->cur_speed > v->max_speed)
03296 tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
03297 v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
03298 }
03299
03300
03301
03302
03303
03304
03305
03306
03307
03308
03309
03310
03311 int scaled_spd = spd * 3 >> 2;
03312
03313 scaled_spd += v->progress;
03314 v->progress = 0;
03315 return scaled_spd;
03316 }
03317
03318 static void TrainEnterStation(Vehicle *v, StationID station)
03319 {
03320 v->last_station_visited = station;
03321
03322
03323 Station *st = GetStation(station);
03324 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
03325 st->had_vehicle_of_type |= HVOT_TRAIN;
03326 SetDParam(0, st->index);
03327 AddNewsItem(
03328 STR_8801_CITIZENS_CELEBRATE_FIRST,
03329 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
03330 v->index,
03331 st->index
03332 );
03333 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
03334 }
03335
03336 v->BeginLoading();
03337
03338 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03339 }
03340
03341 static byte AfterSetTrainPos(Vehicle *v, bool new_tile)
03342 {
03343 byte old_z = v->z_pos;
03344 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03345
03346 if (new_tile) {
03347 ClrBit(v->u.rail.flags, VRF_GOINGUP);
03348 ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
03349
03350 if (v->u.rail.track == TRACK_BIT_X || v->u.rail.track == TRACK_BIT_Y) {
03351
03352
03353
03354
03355
03356 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03357 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03358
03359 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03360
03361
03362
03363 if (middle_z != v->z_pos && !IsTunnelTile(TileVirtXY(v->x_pos, v->y_pos))) {
03364 SetBit(v->u.rail.flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03365 }
03366 }
03367 }
03368
03369 VehiclePositionChanged(v);
03370 EndVehicleMove(v);
03371 return old_z;
03372 }
03373
03374 static const Direction _new_vehicle_direction_table[11] = {
03375 DIR_N , DIR_NW, DIR_W , INVALID_DIR,
03376 DIR_NE, DIR_N , DIR_SW, INVALID_DIR,
03377 DIR_E , DIR_SE, DIR_S
03378 };
03379
03380 static inline Direction GetNewVehicleDirectionByTile(TileIndex new_tile, TileIndex old_tile)
03381 {
03382 uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
03383 TileX(new_tile) - TileX(old_tile) + 1;
03384 assert(offs < 11);
03385 return _new_vehicle_direction_table[offs];
03386 }
03387
03388 static inline int GetDirectionToVehicle(const Vehicle *v, int x, int y)
03389 {
03390 byte offs;
03391
03392 x -= v->x_pos;
03393 if (x >= 0) {
03394 offs = (x > 2) ? 0 : 1;
03395 } else {
03396 offs = (x < -2) ? 2 : 1;
03397 }
03398
03399 y -= v->y_pos;
03400 if (y >= 0) {
03401 offs += ((y > 2) ? 0 : 1) * 4;
03402 } else {
03403 offs += ((y < -2) ? 2 : 1) * 4;
03404 }
03405
03406 assert(offs < 11);
03407 return _new_vehicle_direction_table[offs];
03408 }
03409
03410
03411 static inline bool CheckCompatibleRail(const Vehicle *v, TileIndex tile)
03412 {
03413 return
03414 IsTileOwner(tile, v->owner) && (
03415 !IsFrontEngine(v) ||
03416 HasBit(v->u.rail.compatible_railtypes, GetRailType(tile))
03417 );
03418 }
03419
03420 struct RailtypeSlowdownParams {
03421 byte small_turn, large_turn;
03422 byte z_up;
03423 byte z_down;
03424 };
03425
03426 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03427
03428 {256 / 4, 256 / 2, 256 / 4, 2},
03429 {256 / 4, 256 / 2, 256 / 4, 2},
03430 {256 / 4, 256 / 2, 256 / 4, 2},
03431 {0, 256 / 2, 256 / 4, 2},
03432 };
03433
03435 static inline void AffectSpeedByDirChange(Vehicle *v, Direction new_dir)
03436 {
03437 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03438
03439 DirDiff diff = DirDifference(v->direction, new_dir);
03440 if (diff == DIRDIFF_SAME) return;
03441
03442 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03443 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03444 }
03445
03447 static inline void AffectSpeedByZChange(Vehicle *v, byte old_z)
03448 {
03449 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03450
03451 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03452
03453 if (old_z < v->z_pos) {
03454 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03455 } else {
03456 uint16 spd = v->cur_speed + rsp->z_down;
03457 if (spd <= v->max_speed) v->cur_speed = spd;
03458 }
03459 }
03460
03461 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03462 {
03463 if (IsTileType(tile, MP_RAILWAY) &&
03464 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03465 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03466 Trackdir trackdir = FindFirstTrackdir(tracks);
03467 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03468
03469 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03470 }
03471 }
03472 return false;
03473 }
03474
03475
03476 static void SetVehicleCrashed(Vehicle *v)
03477 {
03478 if (v->u.rail.crash_anim_pos != 0) return;
03479
03480
03481 if (IsFrontEngine(v)) {
03482
03483
03484 FreeTrainTrackReservation(v);
03485 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
03486 ClearPathReservation(u, u->tile, GetVehicleTrackdir(u));
03487 if (IsTileType(u->tile, MP_TUNNELBRIDGE)) {
03488
03489
03490 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(u->tile), false);
03491 }
03492 }
03493 }
03494
03495
03496 TileIndex crossing = TrainApproachingCrossingTile(v);
03497
03498 v->u.rail.crash_anim_pos++;
03499
03500 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03501 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
03502
03503 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03504 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
03505 }
03506
03507 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
03508
03509 for (; v != NULL; v = v->Next()) {
03510 v->vehstatus |= VS_CRASHED;
03511 MarkSingleVehicleDirty(v);
03512 }
03513
03514
03515 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03516 }
03517
03518 static uint CountPassengersInTrain(const Vehicle *v)
03519 {
03520 uint num = 0;
03521
03522 for (; v != NULL; v = v->Next()) {
03523 if (IsCargoInClass(v->cargo_type, CC_PASSENGERS)) num += v->cargo.Count();
03524 }
03525
03526 return num;
03527 }
03528
03535 static uint TrainCrashed(Vehicle *v)
03536 {
03537
03538 if (v->vehstatus & VS_CRASHED) return 0;
03539
03540
03541 uint num = 2 + CountPassengersInTrain(v);
03542
03543 SetVehicleCrashed(v);
03544 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03545
03546 return num;
03547 }
03548
03549 struct TrainCollideChecker {
03550 Vehicle *v;
03551 uint num;
03552 };
03553
03554 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03555 {
03556 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03557
03558 if (v->type != VEH_TRAIN) return NULL;
03559
03560
03561 Vehicle *coll = v->First();
03562
03563
03564 if (coll != tcc->v && v->u.rail.track != TRACK_BIT_DEPOT && abs(v->z_pos - tcc->v->z_pos) < 6) {
03565 int x_diff = v->x_pos - tcc->v->x_pos;
03566 int y_diff = v->y_pos - tcc->v->y_pos;
03567
03568
03569 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03570
03571
03572 tcc->num += TrainCrashed(tcc->v);
03573 tcc->num += TrainCrashed(coll);
03574
03575
03576
03577 const Vehicle *u;
03578 FOR_ALL_VEHICLES(u) {
03579 if (u->type == VEH_TRAIN && HASBITS(u->vehstatus, VS_CRASHED) && (u->u.rail.track & TRACK_BIT_DEPOT) == TRACK_BIT_NONE) {
03580 TrackBits trackbits = u->u.rail.track;
03581 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03582
03583 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(u->tile));
03584 }
03585 TryReserveRailTrack(u->tile, TrackBitsToTrack(trackbits));
03586 }
03587 }
03588 }
03589
03590 return NULL;
03591 }
03592
03599 static bool CheckTrainCollision(Vehicle *v)
03600 {
03601
03602 if (v->u.rail.track == TRACK_BIT_DEPOT) return false;
03603
03604 assert(v->u.rail.track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03605
03606 TrainCollideChecker tcc;
03607 tcc.v = v;
03608 tcc.num = 0;
03609
03610
03611 if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
03612 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03613 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03614 } else {
03615 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03616 }
03617
03618
03619 if (tcc.num == 0) return false;
03620
03621 SetDParam(0, tcc.num);
03622 AddNewsItem(STR_8868_TRAIN_CRASH_DIE_IN_FIREBALL,
03623 NS_ACCIDENT_VEHICLE,
03624 v->index,
03625 0
03626 );
03627
03628 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03629 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03630 return true;
03631 }
03632
03633 static Vehicle *CheckVehicleAtSignal(Vehicle *v, void *data)
03634 {
03635 DiagDirection exitdir = *(DiagDirection *)data;
03636
03637
03638 if (v->type == VEH_TRAIN && IsFrontEngine(v) && (v->u.rail.track & TRACK_BIT_MASK) != 0 && !(v->vehstatus & VS_CRASHED)) {
03639 if (v->cur_speed <= 5 && TrainExitDir(v->direction, v->u.rail.track) == exitdir) return v;
03640 }
03641
03642 return NULL;
03643 }
03644
03645 static void TrainController(Vehicle *v, Vehicle *nomove, bool update_image)
03646 {
03647 Vehicle *prev;
03648
03649
03650 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03651 DiagDirection enterdir = DIAGDIR_BEGIN;
03652 bool update_signals_crossing = false;
03653 BeginVehicleMove(v);
03654
03655 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03656 if (v->u.rail.track != TRACK_BIT_WORMHOLE) {
03657
03658 if (gp.old_tile == gp.new_tile) {
03659
03660 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03661
03662 gp.x = v->x_pos;
03663 gp.y = v->y_pos;
03664 } else {
03665
03666
03667
03668 if (IsFrontEngine(v) && !TrainCheckIfLineEnds(v)) return;
03669
03670 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03671 if (HasBit(r, VETS_CANNOT_ENTER)) {
03672 goto invalid_rail;
03673 }
03674 if (HasBit(r, VETS_ENTERED_STATION)) {
03675
03676 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03677 }
03678 }
03679 } else {
03680
03681
03682
03683 Direction dir = GetNewVehicleDirectionByTile(gp.new_tile, gp.old_tile);
03684 enterdir = DirToDiagDir(dir);
03685 assert(IsValidDiagDirection(enterdir));
03686
03687
03688
03689 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03690 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03691
03692 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03693 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03694
03695 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03696 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg && prev == NULL) {
03697
03698
03699 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
03700 }
03701
03702 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03703
03704
03705
03706 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03707
03708 TrackBits chosen_track;
03709 if (prev == NULL) {
03710
03711
03712 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03713 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03714
03715
03716 if (red_signals & chosen_track && v->u.rail.force_proceed == 0) {
03717
03718 Trackdir i = FindFirstTrackdir(trackdirbits);
03719
03720
03721 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) return;
03722
03723 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03724 v->cur_speed = 0;
03725 v->subspeed = 0;
03726 v->progress = 255 - 100;
03727 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_oneway_signal * 20) return;
03728 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03729 v->cur_speed = 0;
03730 v->subspeed = 0;
03731 v->progress = 255 - 10;
03732 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_twoway_signal * 73) {
03733 DiagDirection exitdir = TrackdirToExitdir(i);
03734 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03735
03736 exitdir = ReverseDiagDir(exitdir);
03737
03738
03739 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckVehicleAtSignal)) return;
03740 }
03741 }
03742
03743
03744
03745 if (_settings_game.pf.wait_for_pbs_path == 255 && UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03746 v->load_unload_time_rem = 0;
03747 return;
03748 }
03749 goto reverse_train_direction;
03750 } else {
03751 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03752 }
03753 } else {
03754 static const TrackBits _matching_tracks[8] = {
03755 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03756 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y,
03757 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03758 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y
03759 };
03760
03761
03762 chosen_track = (TrackBits)(byte)(_matching_tracks[GetDirectionToVehicle(prev, gp.x, gp.y)] & bits);
03763 }
03764
03765
03766 assert(
03767 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03768 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03769 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03770
03771
03772 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03773 gp.x = (gp.x & ~0xF) | b[0];
03774 gp.y = (gp.y & ~0xF) | b[1];
03775 Direction chosen_dir = (Direction)b[2];
03776
03777
03778 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03779 if (HasBit(r, VETS_CANNOT_ENTER)) {
03780 goto invalid_rail;
03781 }
03782
03783 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03784 Track track = FindFirstTrack(chosen_track);
03785 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03786 if (IsFrontEngine(v) && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03787 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03788 MarkTileDirtyByTile(gp.new_tile);
03789 }
03790
03791
03792 if (v->Next() == NULL) ClearPathReservation(v, v->tile, GetVehicleTrackdir(v));
03793
03794 v->tile = gp.new_tile;
03795
03796 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03797 TrainPowerChanged(v->First());
03798 }
03799
03800 v->u.rail.track = chosen_track;
03801 assert(v->u.rail.track);
03802 }
03803
03804
03805
03806 update_signals_crossing = true;
03807
03808 if (prev == NULL) AffectSpeedByDirChange(v, chosen_dir);
03809
03810 v->direction = chosen_dir;
03811
03812 if (IsFrontEngine(v)) {
03813 v->load_unload_time_rem = 0;
03814
03815
03816 TileIndex crossing = TrainApproachingCrossingTile(v);
03817 if (crossing != INVALID_TILE && GetCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03818
03819
03820 CheckNextTrainTile(v);
03821 }
03822 }
03823 } else {
03824
03825
03826
03827 if (!(v->vehstatus & VS_HIDDEN)) {
03828 v->cur_speed =
03829 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03830 }
03831
03832 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03833
03834 if (IsFrontEngine(v)) {
03835 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03836 CheckNextTrainTile(v);
03837 }
03838 } else {
03839 v->x_pos = gp.x;
03840 v->y_pos = gp.y;
03841 VehiclePositionChanged(v);
03842 if (!(v->vehstatus & VS_HIDDEN)) EndVehicleMove(v);
03843 continue;
03844 }
03845 }
03846
03847
03848 v->UpdateDeltaXY(v->direction);
03849 if (update_image) v->cur_image = v->GetImage(v->direction);
03850
03851 v->x_pos = gp.x;
03852 v->y_pos = gp.y;
03853
03854
03855 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03856
03857 if (prev == NULL) {
03858
03859 AffectSpeedByZChange(v, old_z);
03860 }
03861
03862 if (update_signals_crossing) {
03863 if (IsFrontEngine(v)) {
03864 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03865
03866
03867
03868
03869
03870
03871
03872
03873 if ((!HasReservedTracks(gp.new_tile, v->u.rail.track) &&
03874 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->u.rail.track))) ||
03875 !TryPathReserve(v)) {
03876 MarkTrainAsStuck(v);
03877 }
03878 }
03879 }
03880
03881
03882
03883 if (v->Next() == NULL) {
03884 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03885 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03886 }
03887 }
03888
03889
03890 if (IsFrontEngine(v) && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03891 }
03892 return;
03893
03894 invalid_rail:
03895
03896 if (prev != NULL) error("Disconnecting train");
03897
03898 reverse_train_direction:
03899 v->load_unload_time_rem = 0;
03900 v->cur_speed = 0;
03901 v->subspeed = 0;
03902 ReverseTrainDirection(v);
03903 }
03904
03910 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03911 {
03912 TrackBits *trackbits = (TrackBits *)data;
03913
03914 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03915 if ((v->u.rail.track & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03916
03917 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03918 } else {
03919 *trackbits |= v->u.rail.track;
03920 }
03921 }
03922
03923 return NULL;
03924 }
03925
03933 static void DeleteLastWagon(Vehicle *v)
03934 {
03935 Vehicle *first = v->First();
03936
03937
03938
03939
03940 Vehicle *u = v;
03941 for (; v->Next() != NULL; v = v->Next()) u = v;
03942 u->SetNext(NULL);
03943
03944 if (first != v) {
03945
03946 TrainConsistChanged(first, false);
03947
03948
03949 if (first->u.rail.track == TRACK_BIT_DEPOT) {
03950 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
03951 }
03952 }
03953
03954
03955 TrackBits trackbits = v->u.rail.track;
03956 TileIndex tile = v->tile;
03957 Owner owner = v->owner;
03958
03959 delete v;
03960 v = NULL;
03961
03962 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03963
03964 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03965 }
03966
03967 Track track = TrackBitsToTrack(trackbits);
03968 if (HasReservedTracks(tile, trackbits)) {
03969 UnreserveRailTrack(tile, track);
03970
03971
03972 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03973 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03974
03975
03976 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03977 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03978 if (HasBit(remaining_trackbits, t)) {
03979 TryReserveRailTrack(tile, t);
03980 }
03981 }
03982 }
03983
03984
03985 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03986
03987
03988 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03989 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03990 } else {
03991 SetSignalsOnBothDir(tile, track, owner);
03992 }
03993 }
03994
03995 static void ChangeTrainDirRandomly(Vehicle *v)
03996 {
03997 static const DirDiff delta[] = {
03998 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03999 };
04000
04001 do {
04002
04003 if (!(v->vehstatus & VS_HIDDEN)) {
04004 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
04005 BeginVehicleMove(v);
04006 v->UpdateDeltaXY(v->direction);
04007 v->cur_image = v->GetImage(v->direction);
04008
04009
04010
04011 if (v->u.rail.track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
04012 }
04013 } while ((v = v->Next()) != NULL);
04014 }
04015
04016 static void HandleCrashedTrain(Vehicle *v)
04017 {
04018 int state = ++v->u.rail.crash_anim_pos;
04019
04020 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
04021 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
04022 }
04023
04024 uint32 r;
04025 if (state <= 200 && Chance16R(1, 7, r)) {
04026 int index = (r * 10 >> 16);
04027
04028 Vehicle *u = v;
04029 do {
04030 if (--index < 0) {
04031 r = Random();
04032
04033 CreateEffectVehicleRel(u,
04034 GB(r, 8, 3) + 2,
04035 GB(r, 16, 3) + 2,
04036 GB(r, 0, 3) + 5,
04037 EV_EXPLOSION_SMALL);
04038 break;
04039 }
04040 } while ((u = u->Next()) != NULL);
04041 }
04042
04043 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
04044
04045 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
04046 DeleteLastWagon(v);
04047 InvalidateWindow(WC_REPLACE_VEHICLE, (v->group_id << 16) | VEH_TRAIN);
04048 }
04049 }
04050
04051 static void HandleBrokenTrain(Vehicle *v)
04052 {
04053 if (v->breakdown_ctr != 1) {
04054 v->breakdown_ctr = 1;
04055 v->cur_speed = 0;
04056
04057 if (v->breakdowns_since_last_service != 255)
04058 v->breakdowns_since_last_service++;
04059
04060 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04061 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
04062
04063 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
04064 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
04065 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
04066 }
04067
04068 if (!(v->vehstatus & VS_HIDDEN)) {
04069 Vehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
04070 if (u != NULL) u->u.effect.animation_state = v->breakdown_delay * 2;
04071 }
04072 }
04073
04074 if (!(v->tick_counter & 3)) {
04075 if (!--v->breakdown_delay) {
04076 v->breakdown_ctr = 0;
04077 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04078 }
04079 }
04080 }
04081
04083 static const uint16 _breakdown_speeds[16] = {
04084 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
04085 };
04086
04087
04095 static bool TrainApproachingLineEnd(Vehicle *v, bool signal)
04096 {
04097
04098 uint x = v->x_pos & 0xF;
04099 uint y = v->y_pos & 0xF;
04100
04101
04102
04103 switch (v->direction) {
04104 case DIR_N : x = ~x + ~y + 25; break;
04105 case DIR_NW: x = y;
04106 case DIR_NE: x = ~x + 16; break;
04107 case DIR_E : x = ~x + y + 9; break;
04108 case DIR_SE: x = y; break;
04109 case DIR_S : x = x + y - 7; break;
04110 case DIR_W : x = ~y + x + 9; break;
04111 default: break;
04112 }
04113
04114
04115 if (!signal && x + (v->u.rail.cached_veh_length + 1) / 2 >= TILE_SIZE) {
04116
04117 v->cur_speed = 0;
04118 ReverseTrainDirection(v);
04119 return false;
04120 }
04121
04122
04123 v->vehstatus |= VS_TRAIN_SLOWING;
04124 uint16 break_speed = _breakdown_speeds[x & 0xF];
04125 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04126
04127 return true;
04128 }
04129
04130
04136 static bool TrainCanLeaveTile(const Vehicle *v)
04137 {
04138
04139 if (v->u.rail.track == TRACK_BIT_WORMHOLE || v->u.rail.track == TRACK_BIT_DEPOT) return false;
04140
04141 TileIndex tile = v->tile;
04142
04143
04144 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
04145 DiagDirection dir = GetTunnelBridgeDirection(tile);
04146 if (DiagDirToDir(dir) == v->direction) return false;
04147 }
04148
04149
04150 if (IsRailDepotTile(tile)) {
04151 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
04152 if (DiagDirToDir(dir) == v->direction) return false;
04153 }
04154
04155 return true;
04156 }
04157
04158
04166 static TileIndex TrainApproachingCrossingTile(const Vehicle *v)
04167 {
04168 assert(IsFrontEngine(v));
04169 assert(!(v->vehstatus & VS_CRASHED));
04170
04171 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
04172
04173 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04174 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04175
04176
04177 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
04178 !CheckCompatibleRail(v, tile)) {
04179 return INVALID_TILE;
04180 }
04181
04182 return tile;
04183 }
04184
04185
04192 static bool TrainCheckIfLineEnds(Vehicle *v)
04193 {
04194
04195
04196 int t = v->breakdown_ctr;
04197 if (t > 1) {
04198 v->vehstatus |= VS_TRAIN_SLOWING;
04199
04200 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
04201 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04202 } else {
04203 v->vehstatus &= ~VS_TRAIN_SLOWING;
04204 }
04205
04206 if (!TrainCanLeaveTile(v)) return true;
04207
04208
04209 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04210
04211 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04212
04213
04214 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
04215 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
04216
04217 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
04218 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
04219
04220
04221
04222
04223 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
04224 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
04225 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
04226 }
04227
04228
04229 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
04230 return TrainApproachingLineEnd(v, false);
04231 }
04232
04233
04234 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
04235
04236
04237 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
04238
04239 return true;
04240 }
04241
04242
04243 static void TrainLocoHandler(Vehicle *v, bool mode)
04244 {
04245
04246 if (v->vehstatus & VS_CRASHED) {
04247 if (!mode) HandleCrashedTrain(v);
04248 return;
04249 }
04250
04251 if (v->u.rail.force_proceed != 0) {
04252 v->u.rail.force_proceed--;
04253 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04254 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04255 }
04256
04257
04258 if (v->breakdown_ctr != 0) {
04259 if (v->breakdown_ctr <= 2) {
04260 HandleBrokenTrain(v);
04261 return;
04262 }
04263 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
04264 }
04265
04266 if (HasBit(v->u.rail.flags, VRF_REVERSING) && v->cur_speed == 0) {
04267 ReverseTrainDirection(v);
04268 }
04269
04270
04271 if (v->vehstatus & VS_STOPPED && v->cur_speed == 0) return;
04272
04273 bool valid_order = v->current_order.IsValid() && v->current_order.GetType() != OT_CONDITIONAL;
04274 if (ProcessOrders(v) && CheckReverseTrain(v)) {
04275 v->load_unload_time_rem = 0;
04276 v->cur_speed = 0;
04277 v->subspeed = 0;
04278 ReverseTrainDirection(v);
04279 return;
04280 }
04281
04282 v->HandleLoading(mode);
04283
04284 if (v->current_order.IsType(OT_LOADING)) return;
04285
04286 if (CheckTrainStayInDepot(v)) return;
04287
04288 if (!mode) HandleLocomotiveSmokeCloud(v);
04289
04290
04291 if (!valid_order && v->current_order.IsValid()) {
04292 CheckNextTrainTile(v);
04293 }
04294
04295
04296 if (!mode && HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
04297 ++v->load_unload_time_rem;
04298
04299
04300 bool turn_around = v->load_unload_time_rem % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.wait_for_pbs_path < 255;
04301
04302 if (!turn_around && v->load_unload_time_rem % _settings_game.pf.path_backoff_interval != 0 && v->u.rail.force_proceed == 0) return;
04303 if (!TryPathReserve(v)) {
04304
04305 if (turn_around) ReverseTrainDirection(v);
04306
04307 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK) && v->load_unload_time_rem > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
04308
04309 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
04310 SetDParam(0, v->index);
04311 AddNewsItem(
04312 STR_TRAIN_IS_STUCK,
04313 NS_ADVICE,
04314 v->index,
04315 0);
04316 }
04317 v->load_unload_time_rem = 0;
04318 }
04319
04320 if (v->u.rail.force_proceed == 0) return;
04321 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04322 v->load_unload_time_rem = 0;
04323 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04324 }
04325 }
04326
04327 if (v->current_order.IsType(OT_LEAVESTATION)) {
04328 v->current_order.Free();
04329 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04330 return;
04331 }
04332
04333 int j = UpdateTrainSpeed(v);
04334
04335
04336 if (v->cur_speed == 0 && v->u.rail.last_speed == 0 && v->vehstatus & VS_STOPPED) {
04337 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04338 }
04339
04340 int adv_spd = (v->direction & 1) ? 192 : 256;
04341 if (j < adv_spd) {
04342
04343 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04344 } else {
04345 TrainCheckIfLineEnds(v);
04346
04347 do {
04348 j -= adv_spd;
04349 TrainController(v, NULL, true);
04350
04351 if (CheckTrainCollision(v)) break;
04352
04353 adv_spd = (v->direction & 1) ? 192 : 256;
04354 } while (j >= adv_spd);
04355 SetLastSpeed(v, v->cur_speed);
04356 }
04357
04358 if (v->progress == 0) v->progress = j;
04359 }
04360
04361
04362
04363 Money Train::GetRunningCost() const
04364 {
04365 Money cost = 0;
04366 const Vehicle *v = this;
04367
04368 do {
04369 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
04370
04371 byte cost_factor = GetVehicleProperty(v, 0x0D, rvi->running_cost);
04372 if (cost_factor == 0) continue;
04373
04374
04375 if (IsMultiheaded(v)) cost_factor /= 2;
04376
04377 cost += cost_factor * GetPriceByIndex(rvi->running_cost_class);
04378 } while ((v = GetNextVehicle(v)) != NULL);
04379
04380 return cost;
04381 }
04382
04383
04384 void Train::Tick()
04385 {
04386 if (_age_cargo_skip_counter == 0) this->cargo.AgeCargo();
04387
04388 this->tick_counter++;
04389
04390 if (IsFrontEngine(this)) {
04391 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04392 this->current_order_time++;
04393
04394 TrainLocoHandler(this, false);
04395
04396
04397 if (this->type == VEH_TRAIN && IsFrontEngine(this))
04398 TrainLocoHandler(this, true);
04399 } else if (IsFreeWagon(this) && HASBITS(this->vehstatus, VS_CRASHED)) {
04400
04401 if (++this->u.rail.crash_anim_pos >= 4400) delete this;
04402 }
04403 }
04404
04405 static void CheckIfTrainNeedsService(Vehicle *v)
04406 {
04407 static const uint MAX_ACCEPTABLE_DEPOT_DIST = 16;
04408
04409 if (_settings_game.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04410 if (v->IsInDepot()) {
04411 VehicleServiceInDepot(v);
04412 return;
04413 }
04414
04415 TrainFindDepotData tfdd = FindClosestTrainDepot(v, MAX_ACCEPTABLE_DEPOT_DIST);
04416
04417 if (tfdd.best_length == UINT_MAX || tfdd.best_length > MAX_ACCEPTABLE_DEPOT_DIST) {
04418 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04419
04420
04421
04422 v->current_order.MakeDummy();
04423 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04424 }
04425 return;
04426 }
04427
04428 const Depot *depot = GetDepotByTile(tfdd.tile);
04429
04430 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04431 v->current_order.GetDestination() != depot->index &&
04432 !Chance16(3, 16)) {
04433 return;
04434 }
04435
04436 v->current_order.MakeGoToDepot(depot->index, ODTFB_SERVICE);
04437 v->dest_tile = tfdd.tile;
04438 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04439 }
04440
04441 void Train::OnNewDay()
04442 {
04443 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04444
04445 if (IsFrontEngine(this)) {
04446 CheckVehicleBreakdown(this);
04447 AgeVehicle(this);
04448
04449 CheckIfTrainNeedsService(this);
04450
04451 CheckOrders(this);
04452
04453
04454 if (this->current_order.IsType(OT_GOTO_STATION)) {
04455 TileIndex tile = GetStation(this->current_order.GetDestination())->train_tile;
04456 if (tile != INVALID_TILE) this->dest_tile = tile;
04457 }
04458
04459 if (this->running_ticks != 0) {
04460
04461 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04462
04463 this->profit_this_year -= cost.GetCost();
04464 this->running_ticks = 0;
04465
04466 SubtractMoneyFromCompanyFract(this->owner, cost);
04467
04468 InvalidateWindow(WC_VEHICLE_DETAILS, this->index);
04469 InvalidateWindowClasses(WC_TRAINS_LIST);
04470 }
04471 } else if (IsTrainEngine(this)) {
04472
04473 AgeVehicle(this);
04474 }
04475 }
04476
04477 void InitializeTrains()
04478 {
04479 _age_cargo_skip_counter = 1;
04480 }