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 }
00261
00262 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00263
00264 u->u.rail.user_def_data = GetVehicleProperty(u, 0x25, u->u.rail.user_def_data);
00265 }
00266
00267 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00268 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00269
00270 if (!HasBit(EngInfo(u->engine_type)->misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00271
00272
00273 u->u.rail.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->u.rail.first_engine);
00274
00275
00276 u->colourmap = PAL_NONE;
00277
00278 if (rvi_u->visual_effect != 0) {
00279 u->u.rail.cached_vis_effect = rvi_u->visual_effect;
00280 } else {
00281 if (IsTrainWagon(u) || IsArticulatedPart(u)) {
00282
00283 u->u.rail.cached_vis_effect = 0x40;
00284 } else if (rvi_u->engclass == 0) {
00285
00286 u->u.rail.cached_vis_effect = 4;
00287 } else {
00288
00289 u->u.rail.cached_vis_effect = 8;
00290 }
00291 }
00292
00293
00294 if (HasBit(EngInfo(u->engine_type)->callbackmask, CBM_TRAIN_WAGON_POWER)) {
00295 uint16 callback = GetVehicleCallback(CBID_TRAIN_WAGON_POWER, 0, 0, u->engine_type, u);
00296
00297 if (callback != CALLBACK_FAILED) u->u.rail.cached_vis_effect = GB(callback, 0, 8);
00298 }
00299
00300 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00301 UsesWagonOverride(u) && !HasBit(u->u.rail.cached_vis_effect, 7)) {
00302
00303 SetBit(u->u.rail.flags, VRF_POWEREDWAGON);
00304 } else {
00305 ClrBit(u->u.rail.flags, VRF_POWEREDWAGON);
00306 }
00307
00308 if (!IsArticulatedPart(u)) {
00309
00310
00311 if (rvi_u->power > 0) {
00312 v->u.rail.compatible_railtypes |= GetRailTypeInfo(u->u.rail.railtype)->powered_railtypes;
00313 }
00314
00315
00316
00317 if (HasBit(u->u.rail.flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00318 u->u.rail.railtype = RAILTYPE_RAIL;
00319 u->u.rail.compatible_railtypes |= RAILTYPES_RAIL;
00320 }
00321
00322
00323 if ((rvi_u->railveh_type != RAILVEH_WAGON || _settings_game.vehicle.wagon_speed_limits) && !UsesWagonOverride(u)) {
00324 uint16 speed = GetVehicleProperty(u, 0x09, rvi_u->max_speed);
00325 if (speed != 0) max_speed = min(speed, max_speed);
00326 }
00327 }
00328
00329 if (u->cargo_type == rvi_u->cargo_type && u->cargo_subtype == 0) {
00330
00331 u->cargo_cap = GetVehicleProperty(u, 0x14, rvi_u->capacity);
00332 }
00333
00334
00335 uint16 veh_len = CALLBACK_FAILED;
00336 if (HasBit(EngInfo(u->engine_type)->callbackmask, CBM_VEHICLE_LENGTH)) {
00337 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00338 }
00339 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00340 veh_len = 8 - Clamp(veh_len, 0, u->Next() == NULL ? 7 : 5);
00341
00342
00343 if (same_length && veh_len != u->u.rail.cached_veh_length) RailVehicleLengthChanged(u);
00344
00345
00346 if (!same_length) u->u.rail.cached_veh_length = veh_len;
00347
00348 v->u.rail.cached_total_length += u->u.rail.cached_veh_length;
00349 }
00350
00351
00352 v->u.rail.cached_max_speed = max_speed;
00353 v->u.rail.cached_tilt = train_can_tilt;
00354
00355
00356 TrainCargoChanged(v);
00357
00358 if (IsFrontEngine(v)) {
00359 UpdateTrainAcceleration(v);
00360 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
00361 }
00362 }
00363
00364 enum AccelType {
00365 AM_ACCEL,
00366 AM_BRAKE
00367 };
00368
00370 static int GetTrainAcceleration(Vehicle *v, bool mode)
00371 {
00372 static const int absolute_max_speed = UINT16_MAX;
00373 int max_speed = absolute_max_speed;
00374 int speed = v->cur_speed * 10 / 16;
00375 int curvecount[2] = {0, 0};
00376
00377
00378 int numcurve = 0;
00379 int sum = 0;
00380 int pos = 0;
00381 int lastpos = -1;
00382 for (const Vehicle *u = v; u->Next() != NULL; u = u->Next(), pos++) {
00383 Direction this_dir = u->direction;
00384 Direction next_dir = u->Next()->direction;
00385
00386 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00387 if (dirdiff == DIRDIFF_SAME) continue;
00388
00389 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00390 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00391 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00392 if (lastpos != -1) {
00393 numcurve++;
00394 sum += pos - lastpos;
00395 if (pos - lastpos == 1) {
00396 max_speed = 88;
00397 }
00398 }
00399 lastpos = pos;
00400 }
00401
00402
00403 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00404 max_speed = 61;
00405 }
00406 }
00407
00408 if ((curvecount[0] != 0 || curvecount[1] != 0) && max_speed > 88) {
00409 int total = curvecount[0] + curvecount[1];
00410
00411 if (curvecount[0] == 1 && curvecount[1] == 1) {
00412 max_speed = absolute_max_speed;
00413 } else if (total > 1) {
00414 if (numcurve > 0) sum /= numcurve;
00415 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00416 }
00417 }
00418
00419 if (max_speed != absolute_max_speed) {
00420
00421 const RailtypeInfo *rti = GetRailTypeInfo(v->u.rail.railtype);
00422 max_speed += (max_speed / 2) * rti->curve_speed;
00423
00424 if (v->u.rail.cached_tilt) {
00425
00426 max_speed += max_speed / 5;
00427 }
00428 }
00429
00430 if (IsTileType(v->tile, MP_STATION) && IsFrontEngine(v)) {
00431 if (v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) {
00432 int station_length = GetStationByTile(v->tile)->GetPlatformLength(v->tile, DirToDiagDir(v->direction));
00433
00434 int st_max_speed = 120;
00435
00436 int delta_v = v->cur_speed / (station_length + 1);
00437 if (v->max_speed > (v->cur_speed - delta_v)) {
00438 st_max_speed = v->cur_speed - (delta_v / 10);
00439 }
00440
00441 st_max_speed = max(st_max_speed, 25 * station_length);
00442 max_speed = min(max_speed, st_max_speed);
00443 }
00444 }
00445
00446 int mass = v->u.rail.cached_weight;
00447 int power = v->u.rail.cached_power * 746;
00448 max_speed = min(max_speed, v->u.rail.cached_max_speed);
00449
00450 int num = 0;
00451 int incl = 0;
00452 int drag_coeff = 20;
00453 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
00454 num++;
00455 drag_coeff += 3;
00456
00457 if (u->u.rail.track == TRACK_BIT_DEPOT) max_speed = min(max_speed, 61);
00458
00459 if (HasBit(u->u.rail.flags, VRF_GOINGUP)) {
00460 incl += u->u.rail.cached_veh_weight * 60;
00461 } else if (HasBit(u->u.rail.flags, VRF_GOINGDOWN)) {
00462 incl -= u->u.rail.cached_veh_weight * 60;
00463 }
00464 }
00465
00466 v->max_speed = max_speed;
00467
00468 const int area = 120;
00469 const int friction = 35;
00470 int resistance;
00471 if (v->u.rail.railtype != RAILTYPE_MAGLEV) {
00472 resistance = 13 * mass / 10;
00473 resistance += 60 * num;
00474 resistance += friction * mass * speed / 1000;
00475 resistance += (area * drag_coeff * speed * speed) / 10000;
00476 } else {
00477 resistance = (area * (drag_coeff / 2) * speed * speed) / 10000;
00478 }
00479 resistance += incl;
00480 resistance *= 4;
00481
00482 const int max_te = v->u.rail.cached_max_te;
00483 int force;
00484 if (speed > 0) {
00485 switch (v->u.rail.railtype) {
00486 case RAILTYPE_RAIL:
00487 case RAILTYPE_ELECTRIC:
00488 case RAILTYPE_MONO:
00489 force = power / speed;
00490 force *= 22;
00491 force /= 10;
00492 if (mode == AM_ACCEL && force > max_te) force = max_te;
00493 break;
00494
00495 default: NOT_REACHED();
00496 case RAILTYPE_MAGLEV:
00497 force = power / 25;
00498 break;
00499 }
00500 } else {
00501
00502 force = (mode == AM_ACCEL && v->u.rail.railtype != RAILTYPE_MAGLEV) ? min(max_te, power) : power;
00503 force = max(force, (mass * 8) + resistance);
00504 }
00505
00506 if (mode == AM_ACCEL) {
00507 return (force - resistance) / (mass * 2);
00508 } else {
00509 return min(-force - resistance, -10000) / mass;
00510 }
00511 }
00512
00513 void UpdateTrainAcceleration(Vehicle *v)
00514 {
00515 assert(IsFrontEngine(v));
00516
00517 v->max_speed = v->u.rail.cached_max_speed;
00518
00519 uint power = v->u.rail.cached_power;
00520 uint weight = v->u.rail.cached_weight;
00521 assert(weight != 0);
00522 v->acceleration = Clamp(power / weight * 4, 1, 255);
00523 }
00524
00525 SpriteID Train::GetImage(Direction direction) const
00526 {
00527 uint8 spritenum = this->spritenum;
00528 SpriteID sprite;
00529
00530 if (HasBit(this->u.rail.flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00531
00532 if (is_custom_sprite(spritenum)) {
00533 sprite = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(spritenum)));
00534 if (sprite != 0) return sprite;
00535
00536 spritenum = GetEngine(this->engine_type)->image_index;
00537 }
00538
00539 sprite = _engine_sprite_base[spritenum] + ((direction + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]);
00540
00541 if (this->cargo.Count() >= this->cargo_cap / 2U) sprite += _wagon_full_adder[spritenum];
00542
00543 return sprite;
00544 }
00545
00546 static SpriteID GetRailIcon(EngineID engine, bool rear_head, int &y)
00547 {
00548 Direction dir = rear_head ? DIR_E : DIR_W;
00549 uint8 spritenum = RailVehInfo(engine)->image_index;
00550
00551 if (is_custom_sprite(spritenum)) {
00552 SpriteID sprite = GetCustomVehicleIcon(engine, dir);
00553 if (sprite != 0) {
00554 y += _traininfo_vehicle_pitch;
00555 return sprite;
00556 }
00557
00558 spritenum = GetEngine(engine)->image_index;
00559 }
00560
00561 if (rear_head) spritenum++;
00562
00563 return ((6 + _engine_sprite_add[spritenum]) & _engine_sprite_and[spritenum]) + _engine_sprite_base[spritenum];
00564 }
00565
00566 void DrawTrainEngine(int x, int y, EngineID engine, SpriteID pal)
00567 {
00568 if (RailVehInfo(engine)->railveh_type == RAILVEH_MULTIHEAD) {
00569 int yf = y;
00570 int yr = y;
00571
00572 SpriteID spritef = GetRailIcon(engine, false, yf);
00573 SpriteID spriter = GetRailIcon(engine, true, yr);
00574 DrawSprite(spritef, pal, x - 14, yf);
00575 DrawSprite(spriter, pal, x + 15, yr);
00576 } else {
00577 SpriteID sprite = GetRailIcon(engine, false, y);
00578 DrawSprite(sprite, pal, x, y);
00579 }
00580 }
00581
00582 static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, DoCommandFlag flags)
00583 {
00584 const RailVehicleInfo *rvi = RailVehInfo(engine);
00585 CommandCost value(EXPENSES_NEW_VEHICLES, GetEngine(engine)->GetCost());
00586
00587 if (flags & DC_QUERY_COST) return value;
00588
00589
00590 if (!IsCompatibleRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00591
00592 uint num_vehicles = 1 + CountArticulatedParts(engine, false);
00593
00594
00595 Vehicle **vl = AllocaM(Vehicle*, num_vehicles + 1);
00596 memset(vl, 0, sizeof(*vl) * (num_vehicles + 1));
00597
00598 if (!Vehicle::AllocateList(vl, num_vehicles)) {
00599 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00600 }
00601
00602 if (flags & DC_EXEC) {
00603 Vehicle *v = vl[0];
00604 v->spritenum = rvi->image_index;
00605
00606 Vehicle *u = NULL;
00607
00608 Vehicle *w;
00609 FOR_ALL_VEHICLES(w) {
00610 if (w->type == VEH_TRAIN && w->tile == tile &&
00611 IsFreeWagon(w) && w->engine_type == engine &&
00612 !HASBITS(w->vehstatus, VS_CRASHED)) {
00613 u = GetLastVehicleInChain(w);
00614 break;
00615 }
00616 }
00617
00618 v = new (v) Train();
00619 v->engine_type = engine;
00620
00621 DiagDirection dir = GetRailDepotDirection(tile);
00622
00623 v->direction = DiagDirToDir(dir);
00624 v->tile = tile;
00625
00626 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00627 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00628
00629 v->x_pos = x;
00630 v->y_pos = y;
00631 v->z_pos = GetSlopeZ(x, y);
00632 v->owner = _current_company;
00633 v->u.rail.track = TRACK_BIT_DEPOT;
00634 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00635
00636
00637 SetTrainWagon(v);
00638
00639 if (u != NULL) {
00640 u->SetNext(v);
00641 } else {
00642 SetFreeWagon(v);
00643 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00644 }
00645
00646 v->cargo_type = rvi->cargo_type;
00647
00648 v->cargo_cap = rvi->capacity;
00649 v->value = value.GetCost();
00650
00651
00652 v->u.rail.railtype = rvi->railtype;
00653
00654 v->build_year = _cur_year;
00655 v->cur_image = 0xAC2;
00656 v->random_bits = VehicleRandomBits();
00657
00658 v->group_id = DEFAULT_GROUP;
00659
00660 AddArticulatedParts(vl, VEH_TRAIN);
00661
00662 _new_vehicle_id = v->index;
00663
00664 VehiclePositionChanged(v);
00665 TrainConsistChanged(v->First(), false);
00666 UpdateTrainGroupID(v->First());
00667
00668 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
00669 if (IsLocalCompany()) {
00670 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00671 }
00672 GetCompany(_current_company)->num_engines[engine]++;
00673 }
00674
00675 return value;
00676 }
00677
00679 static void NormalizeTrainVehInDepot(const Vehicle *u)
00680 {
00681 const Vehicle *v;
00682
00683 FOR_ALL_VEHICLES(v) {
00684 if (v->type == VEH_TRAIN && IsFreeWagon(v) &&
00685 v->tile == u->tile &&
00686 v->u.rail.track == TRACK_BIT_DEPOT) {
00687 if (CmdFailed(DoCommand(0, v->index | (u->index << 16), 1, DC_EXEC,
00688 CMD_MOVE_RAIL_VEHICLE)))
00689 break;
00690 }
00691 }
00692 }
00693
00694 static void AddRearEngineToMultiheadedTrain(Vehicle *v, Vehicle *u, bool building)
00695 {
00696 u = new (u) Train();
00697 u->direction = v->direction;
00698 u->owner = v->owner;
00699 u->tile = v->tile;
00700 u->x_pos = v->x_pos;
00701 u->y_pos = v->y_pos;
00702 u->z_pos = v->z_pos;
00703 u->u.rail.track = TRACK_BIT_DEPOT;
00704 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00705
00706 SetMultiheaded(u);
00707 u->spritenum = v->spritenum + 1;
00708 u->cargo_type = v->cargo_type;
00709 u->cargo_subtype = v->cargo_subtype;
00710 u->cargo_cap = v->cargo_cap;
00711 u->u.rail.railtype = v->u.rail.railtype;
00712 if (building) v->SetNext(u);
00713 u->engine_type = v->engine_type;
00714 u->build_year = v->build_year;
00715 if (building) v->value >>= 1;
00716 u->value = v->value;
00717 u->cur_image = 0xAC2;
00718 u->random_bits = VehicleRandomBits();
00719 VehiclePositionChanged(u);
00720 }
00721
00728 CommandCost CmdBuildRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00729 {
00730
00731 if (!IsEngineBuildable(p1, VEH_TRAIN, _current_company)) return_cmd_error(STR_RAIL_VEHICLE_NOT_AVAILABLE);
00732
00733 const Engine *e = GetEngine(p1);
00734 CommandCost value(EXPENSES_NEW_VEHICLES, e->GetCost());
00735
00736 if (flags & DC_QUERY_COST) return value;
00737
00738
00739
00740 if (!IsRailDepotTile(tile)) return CMD_ERROR;
00741 if (!IsTileOwner(tile, _current_company)) return CMD_ERROR;
00742
00743 const RailVehicleInfo *rvi = RailVehInfo(p1);
00744 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(p1, tile, flags);
00745
00746 uint num_vehicles =
00747 (rvi->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1) +
00748 CountArticulatedParts(p1, false);
00749
00750
00751
00752 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00753
00754
00755 Vehicle **vl = AllocaM(Vehicle*, num_vehicles + 1);
00756 memset(vl, 0, sizeof(*vl) * (num_vehicles + 1));
00757
00758 if (!Vehicle::AllocateList(vl, num_vehicles)) {
00759 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00760 }
00761
00762 Vehicle *v = vl[0];
00763
00764 UnitID unit_num = (flags & DC_AUTOREPLACE) ? 0 : GetFreeUnitNumber(VEH_TRAIN);
00765 if (unit_num > _settings_game.vehicle.max_trains) {
00766 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00767 }
00768
00769 if (flags & DC_EXEC) {
00770 DiagDirection dir = GetRailDepotDirection(tile);
00771 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00772 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00773
00774 v = new (v) Train();
00775 v->unitnumber = unit_num;
00776 v->direction = DiagDirToDir(dir);
00777 v->tile = tile;
00778 v->owner = _current_company;
00779 v->x_pos = x;
00780 v->y_pos = y;
00781 v->z_pos = GetSlopeZ(x, y);
00782
00783 v->u.rail.track = TRACK_BIT_DEPOT;
00784 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00785 v->spritenum = rvi->image_index;
00786 v->cargo_type = rvi->cargo_type;
00787
00788 v->cargo_cap = rvi->capacity;
00789 v->max_speed = rvi->max_speed;
00790 v->value = value.GetCost();
00791 v->last_station_visited = INVALID_STATION;
00792
00793
00794 v->engine_type = p1;
00795
00796 v->reliability = e->reliability;
00797 v->reliability_spd_dec = e->reliability_spd_dec;
00798 v->max_age = e->lifelength * DAYS_IN_LEAP_YEAR;
00799
00800 v->name = NULL;
00801 v->u.rail.railtype = rvi->railtype;
00802 _new_vehicle_id = v->index;
00803
00804 v->service_interval = _settings_game.vehicle.servint_trains;
00805 v->date_of_last_service = _date;
00806 v->build_year = _cur_year;
00807 v->cur_image = 0xAC2;
00808 v->random_bits = VehicleRandomBits();
00809
00810
00811 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00812
00813 v->group_id = DEFAULT_GROUP;
00814
00815
00816 SetFrontEngine(v);
00817 SetTrainEngine(v);
00818
00819 VehiclePositionChanged(v);
00820
00821 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00822 SetMultiheaded(v);
00823 AddRearEngineToMultiheadedTrain(vl[0], vl[1], true);
00824
00825
00826
00827
00828 vl[0]->u.rail.other_multiheaded_part = vl[1];
00829 vl[1]->u.rail.other_multiheaded_part = vl[0];
00830 } else {
00831 AddArticulatedParts(vl, VEH_TRAIN);
00832 }
00833
00834 TrainConsistChanged(v, false);
00835 UpdateTrainGroupID(v);
00836
00837 if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) {
00838 NormalizeTrainVehInDepot(v);
00839 }
00840
00841 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00842 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
00843 InvalidateWindow(WC_COMPANY, v->owner);
00844 if (IsLocalCompany()) {
00845 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00846 }
00847
00848 GetCompany(_current_company)->num_engines[p1]++;
00849 }
00850
00851 return value;
00852 }
00853
00854
00855
00856
00857 int CheckTrainInDepot(const Vehicle *v, bool needs_to_be_stopped)
00858 {
00859 TileIndex tile = v->tile;
00860
00861
00862 if (!IsRailDepotTile(tile) || v->cur_speed != 0) return -1;
00863
00864 int count = 0;
00865 for (; v != NULL; v = v->Next()) {
00866
00867
00868
00869
00870
00871 if (!IsArticulatedPart(v) && !IsRearDualheaded(v)) count++;
00872 if (v->u.rail.track != TRACK_BIT_DEPOT || v->tile != tile ||
00873 (IsFrontEngine(v) && needs_to_be_stopped && !(v->vehstatus & VS_STOPPED))) {
00874 return -1;
00875 }
00876 }
00877
00878 return count;
00879 }
00880
00881
00882 int CheckTrainStoppedInDepot(const Vehicle *v)
00883 {
00884 return CheckTrainInDepot(v, true);
00885 }
00886
00887
00888 inline bool CheckTrainIsInsideDepot(const Vehicle *v)
00889 {
00890 return CheckTrainInDepot(v, false) > 0;
00891 }
00892
00899 static Vehicle *UnlinkWagon(Vehicle *v, Vehicle *first)
00900 {
00901
00902 if (v == first) {
00903 v = GetNextVehicle(v);
00904 if (v == NULL) return NULL;
00905
00906 if (IsTrainWagon(v)) SetFreeWagon(v);
00907
00908
00909
00910
00911 v->Previous()->SetNext(NULL);
00912
00913 return v;
00914 }
00915
00916 Vehicle *u;
00917 for (u = first; GetNextVehicle(u) != v; u = GetNextVehicle(u)) {}
00918 GetLastEnginePart(u)->SetNext(GetNextVehicle(v));
00919 return first;
00920 }
00921
00922 static Vehicle *FindGoodVehiclePos(const Vehicle *src)
00923 {
00924 Vehicle *dst;
00925 EngineID eng = src->engine_type;
00926 TileIndex tile = src->tile;
00927
00928 FOR_ALL_VEHICLES(dst) {
00929 if (dst->type == VEH_TRAIN && IsFreeWagon(dst) && dst->tile == tile && !HASBITS(dst->vehstatus, VS_CRASHED)) {
00930
00931 Vehicle *v = dst;
00932
00933 while (v->engine_type == eng) {
00934 v = v->Next();
00935 if (v == NULL) return dst;
00936 }
00937 }
00938 }
00939
00940 return NULL;
00941 }
00942
00943
00944
00945
00946
00947 static void AddWagonToConsist(Vehicle *v, Vehicle *dest)
00948 {
00949 UnlinkWagon(v, v->First());
00950 if (dest == NULL) return;
00951
00952 Vehicle *next = dest->Next();
00953 v->SetNext(NULL);
00954 dest->SetNext(v);
00955 v->SetNext(next);
00956 ClearFreeWagon(v);
00957 ClearFrontEngine(v);
00958 }
00959
00960
00961
00962
00963
00964 static void NormaliseTrainConsist(Vehicle *v)
00965 {
00966 if (IsFreeWagon(v)) return;
00967
00968 assert(IsFrontEngine(v));
00969
00970 for (; v != NULL; v = GetNextVehicle(v)) {
00971 if (!IsMultiheaded(v) || !IsTrainEngine(v)) continue;
00972
00973
00974 Vehicle *u;
00975 for (u = v; u->Next() != NULL && !IsTrainEngine(u->Next()); u = u->Next()) {}
00976
00977 if (u == v->u.rail.other_multiheaded_part) continue;
00978 AddWagonToConsist(v->u.rail.other_multiheaded_part, u);
00979 }
00980 }
00981
00991 CommandCost CmdMoveRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
00992 {
00993 VehicleID s = GB(p1, 0, 16);
00994 VehicleID d = GB(p1, 16, 16);
00995
00996 if (!IsValidVehicleID(s)) return CMD_ERROR;
00997
00998 Vehicle *src = GetVehicle(s);
00999
01000 if (src->type != VEH_TRAIN || !CheckOwnership(src->owner)) return CMD_ERROR;
01001
01002
01003 if (HASBITS(src->vehstatus, VS_CRASHED)) return CMD_ERROR;
01004
01005
01006 Vehicle *dst;
01007 if (d == INVALID_VEHICLE) {
01008 dst = IsTrainEngine(src) ? NULL : FindGoodVehiclePos(src);
01009 } else {
01010 if (!IsValidVehicleID(d)) return CMD_ERROR;
01011 dst = GetVehicle(d);
01012 if (dst->type != VEH_TRAIN || !CheckOwnership(dst->owner)) return CMD_ERROR;
01013
01014
01015 if (HASBITS(dst->vehstatus, VS_CRASHED)) return CMD_ERROR;
01016 }
01017
01018
01019 while (IsArticulatedPart(src)) src = src->Previous();
01020 if (dst != NULL) {
01021 while (IsArticulatedPart(dst)) dst = dst->Previous();
01022 }
01023
01024
01025 if (src == dst) return CommandCost();
01026
01027
01028 Vehicle *src_head = src->First();
01029 Vehicle *dst_head;
01030 if (dst != NULL) {
01031 dst_head = dst->First();
01032 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01033
01034 dst = GetLastEnginePart(dst);
01035 } else {
01036 dst_head = NULL;
01037 }
01038
01039 if (IsRearDualheaded(src)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01040
01041
01042 if (HasBit(p2, 0) && src_head == dst_head) return CommandCost();
01043
01044
01045 int src_len = CheckTrainStoppedInDepot(src_head);
01046 if (src_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01047
01048 if ((flags & DC_AUTOREPLACE) == 0) {
01049
01050 int max_len = _settings_game.vehicle.mammoth_trains ? 100 : 10;
01051
01052
01053 if (src_head != dst_head) {
01054 int dst_len = 0;
01055
01056 if (dst_head != NULL) {
01057
01058 dst_len = CheckTrainStoppedInDepot(dst_head);
01059 if (dst_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01060 }
01061
01062
01063
01064 if (HasBit(p2, 0)) {
01065 const Vehicle *u;
01066 for (u = src_head; u != src && u != NULL; u = GetNextVehicle(u))
01067 src_len--;
01068 } else {
01069
01070 src_len = 1;
01071 }
01072
01073 if (src_len + dst_len > max_len) {
01074
01075 if (dst_head != NULL && IsFrontEngine(dst_head)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01076
01077 if (dst_head == NULL && IsTrainEngine(src)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01078 }
01079 } else {
01080
01081 if (src_len > max_len && src == src_head && IsTrainEngine(GetNextVehicle(src_head)))
01082 return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01083 }
01084 }
01085
01086
01087 if (dst == NULL && !IsFrontEngine(src) && IsTrainEngine(src)) {
01088 UnitID unit_num = ((flags & DC_AUTOREPLACE) != 0 ? 0 : GetFreeUnitNumber(VEH_TRAIN));
01089 if (unit_num > _settings_game.vehicle.max_trains)
01090 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01091
01092 if (flags & DC_EXEC) src->unitnumber = unit_num;
01093 }
01094
01095
01096 if (!HasBit(p2, 0) && (IsFreeWagon(src) || (IsFrontEngine(src) && dst == NULL)) && (flags & DC_AUTOREPLACE) == 0) {
01097 Vehicle *second = GetNextUnit(src);
01098 if (second != NULL && IsTrainEngine(second) && GetFreeUnitNumber(VEH_TRAIN) > _settings_game.vehicle.max_trains) {
01099 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01100 }
01101 }
01102
01103
01104
01105
01106
01107
01108
01109
01110 bool src_in_dst = false;
01111 for (Vehicle *v = dst_head; !src_in_dst && v != NULL; v = v->Next()) src_in_dst = v == src;
01112
01113
01114
01115
01116
01117
01118
01119
01120
01121 if (dst_head != NULL && !src_in_dst && (flags & DC_AUTOREPLACE) == 0) {
01122
01123
01124
01125
01126
01127
01128
01129
01130
01131 Vehicle *dst_tail = dst_head;
01132 while (dst_tail->Next() != NULL) dst_tail = dst_tail->Next();
01133
01134 Vehicle *orig_tail = dst_tail;
01135 Vehicle *next_to_attach = src;
01136 Vehicle *src_previous = src->Previous();
01137
01138 while (next_to_attach != NULL) {
01139
01140 if (!IsArticulatedPart(next_to_attach) && !IsRearDualheaded(next_to_attach)) {
01141
01142 EngineID first_engine = next_to_attach->u.rail.first_engine;
01143 next_to_attach->u.rail.first_engine = INVALID_ENGINE;
01144
01145 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, dst_head->engine_type, next_to_attach, dst_head);
01146
01147
01148 next_to_attach->u.rail.first_engine = first_engine;
01149
01150 if (callback != CALLBACK_FAILED) {
01151 StringID error = STR_NULL;
01152
01153 if (callback == 0xFD) error = STR_INCOMPATIBLE_RAIL_TYPES;
01154 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(dst_head->engine_type), 0xD000 + callback);
01155
01156 if (error != STR_NULL) {
01157
01158
01159
01160
01161
01162
01163
01164
01165
01166 dst_tail->SetNext(next_to_attach);
01167 orig_tail->SetNext(NULL);
01168 if (src_previous != NULL) src_previous->SetNext(src);
01169
01170 return_cmd_error(error);
01171 }
01172 }
01173 }
01174
01175
01176 if (!HasBit(p2, 0)) break;
01177
01178
01179
01180
01181
01182
01183
01184 Vehicle *to_add = next_to_attach;
01185 next_to_attach = next_to_attach->Next();
01186
01187 to_add->SetNext(NULL);
01188 dst_tail->SetNext(to_add);
01189 dst_tail = dst_tail->Next();
01190 }
01191
01192
01193
01194
01195
01196
01197
01198
01199 orig_tail->SetNext(NULL);
01200 if (src_previous != NULL) src_previous->SetNext(src);
01201 }
01202
01203
01204 if (flags & DC_EXEC) {
01205
01206
01207 if (IsFrontEngine(src) && !IsDefaultGroupID(src->group_id)) {
01208 Vehicle *v = GetNextVehicle(src);
01209
01210 if (v != NULL && IsTrainEngine(v)) {
01211 v->group_id = src->group_id;
01212 src->group_id = DEFAULT_GROUP;
01213 }
01214 }
01215
01216 if (HasBit(p2, 0)) {
01217
01218 if (src != src_head) {
01219 Vehicle *v = src_head;
01220 while (GetNextVehicle(v) != src) v = GetNextVehicle(v);
01221 GetLastEnginePart(v)->SetNext(NULL);
01222 } else {
01223 InvalidateWindowData(WC_VEHICLE_DEPOT, src_head->tile);
01224 src_head = NULL;
01225 }
01226 } else {
01227
01228 if (src_head == dst_head) dst_head = NULL;
01229
01230 src_head = UnlinkWagon(src, src_head);
01231 GetLastEnginePart(src)->SetNext(NULL);
01232 }
01233
01234 if (dst == NULL) {
01235
01236 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01237
01238
01239 if (IsTrainEngine(src)) {
01240 if (!IsFrontEngine(src)) {
01241
01242 SetFrontEngine(src);
01243 assert(src->orders.list == NULL);
01244
01245
01246 if (!IsDefaultGroupID(src->group_id) && IsValidGroupID(src->group_id)) {
01247 GetGroup(src->group_id)->num_engines[src->engine_type]--;
01248 }
01249
01250
01251 src->group_id = DEFAULT_GROUP;
01252 }
01253 } else {
01254 SetFreeWagon(src);
01255 }
01256 dst_head = src;
01257 } else {
01258 if (IsFrontEngine(src)) {
01259
01260 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01261 DeleteWindowById(WC_VEHICLE_ORDERS, src->index);
01262 DeleteWindowById(WC_VEHICLE_REFIT, src->index);
01263 DeleteWindowById(WC_VEHICLE_DETAILS, src->index);
01264 DeleteWindowById(WC_VEHICLE_TIMETABLE, src->index);
01265 DeleteVehicleOrders(src);
01266 RemoveVehicleFromGroup(src);
01267 }
01268
01269 if (IsFrontEngine(src) || IsFreeWagon(src)) {
01270 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01271 ClearFrontEngine(src);
01272 ClearFreeWagon(src);
01273 src->unitnumber = 0;
01274 }
01275
01276
01277 {
01278 Vehicle *v;
01279
01280 for (v = src; GetNextVehicle(v) != NULL; v = GetNextVehicle(v)) {}
01281 GetLastEnginePart(v)->SetNext(dst->Next());
01282 }
01283 dst->SetNext(src);
01284 }
01285
01286 if (src->u.rail.other_multiheaded_part != NULL) {
01287 if (src->u.rail.other_multiheaded_part == src_head) {
01288 src_head = src_head->Next();
01289 }
01290 AddWagonToConsist(src->u.rail.other_multiheaded_part, src);
01291 }
01292
01293
01294
01295
01296 if (src_head != NULL && !IsFrontEngine(src_head) && IsTrainEngine(src_head)) {
01297
01298
01299 const GroupID tmp_g = src_head->group_id;
01300 CmdMoveRailVehicle(0, flags, src_head->index | (INVALID_VEHICLE << 16), 1, text);
01301 SetTrainGroupID(src_head, tmp_g);
01302 src_head = NULL;
01303 }
01304
01305 if (src_head != NULL) {
01306 NormaliseTrainConsist(src_head);
01307 TrainConsistChanged(src_head, false);
01308 UpdateTrainGroupID(src_head);
01309 if (IsFrontEngine(src_head)) {
01310
01311 InvalidateWindow(WC_VEHICLE_REFIT, src_head->index);
01312 InvalidateWindowWidget(WC_VEHICLE_VIEW, src_head->index, VVW_WIDGET_REFIT_VEH);
01313 }
01314
01315 InvalidateWindow(WC_VEHICLE_DEPOT, src_head->tile);
01316 }
01317
01318 if (dst_head != NULL) {
01319 NormaliseTrainConsist(dst_head);
01320 TrainConsistChanged(dst_head, false);
01321 UpdateTrainGroupID(dst_head);
01322 if (IsFrontEngine(dst_head)) {
01323
01324 InvalidateWindowWidget(WC_VEHICLE_VIEW, dst_head->index, VVW_WIDGET_REFIT_VEH);
01325 InvalidateWindow(WC_VEHICLE_REFIT, dst_head->index);
01326 }
01327
01328 InvalidateWindow(WC_VEHICLE_DEPOT, dst_head->tile);
01329 }
01330
01331 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01332 }
01333
01334 return CommandCost();
01335 }
01336
01346 CommandCost CmdSellRailWagon(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01347 {
01348
01349 Window *w = NULL;
01350
01351 if (!IsValidVehicleID(p1) || p2 > 1) return CMD_ERROR;
01352
01353 Vehicle *v = GetVehicle(p1);
01354
01355 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01356
01357 if (HASBITS(v->vehstatus, VS_CRASHED)) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
01358
01359 while (IsArticulatedPart(v)) v = v->Previous();
01360 Vehicle *first = v->First();
01361
01362
01363 if (CheckTrainStoppedInDepot(first) < 0) {
01364 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01365 }
01366
01367 if (IsRearDualheaded(v)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01368
01369 if (flags & DC_EXEC) {
01370 if (v == first && IsFrontEngine(first)) {
01371 DeleteWindowById(WC_VEHICLE_VIEW, first->index);
01372 DeleteWindowById(WC_VEHICLE_ORDERS, first->index);
01373 DeleteWindowById(WC_VEHICLE_REFIT, first->index);
01374 DeleteWindowById(WC_VEHICLE_DETAILS, first->index);
01375 DeleteWindowById(WC_VEHICLE_TIMETABLE, first->index);
01376 }
01377 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
01378 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
01379 }
01380
01381 CommandCost cost(EXPENSES_NEW_VEHICLES);
01382 switch (p2) {
01383 case 0: {
01384 bool switch_engine = false;
01385
01386
01387
01388 Vehicle *rear = (IsMultiheaded(v) &&
01389 IsTrainEngine(v)) ? v->u.rail.other_multiheaded_part : NULL;
01390
01391 if (rear != NULL) {
01392 cost.AddCost(-rear->value);
01393 if (flags & DC_EXEC) {
01394 UnlinkWagon(rear, first);
01395 delete rear;
01396 }
01397 }
01398
01399
01400
01401 if (v == first) {
01402 Vehicle *new_f = GetNextVehicle(first);
01403
01404
01405
01406
01407 if (new_f != NULL && IsTrainEngine(new_f)) {
01408 if (IsTrainEngine(first)) {
01409
01410 switch_engine = true;
01411
01412 if (flags & DC_EXEC) {
01413
01414 new_f->group_id = first->group_id;
01415 first->group_id = DEFAULT_GROUP;
01416
01417
01418 new_f->orders.list = first->orders.list;
01419 new_f->AddToShared(first);
01420 DeleteVehicleOrders(first);
01421
01422
01423 new_f->CopyVehicleConfigAndStatistics(first);
01424
01425
01426 if (IsLocalCompany() && w != NULL) ShowVehicleViewWindow(new_f);
01427 }
01428 } else {
01429
01430
01431
01432 cost.AddCost(DoCommand(0, new_f->index | INVALID_VEHICLE << 16, 1, flags, CMD_MOVE_RAIL_VEHICLE));
01433 if (cost.Failed()) return cost;
01434 }
01435 }
01436 }
01437
01438
01439 cost.AddCost(-v->value);
01440 if (flags & DC_EXEC) {
01441 first = UnlinkWagon(v, first);
01442 delete v;
01443
01444
01445
01446 if (switch_engine) SetFrontEngine(first);
01447
01448
01449 if (first != NULL) {
01450 NormaliseTrainConsist(first);
01451 TrainConsistChanged(first, false);
01452 UpdateTrainGroupID(first);
01453 if (IsFrontEngine(first)) InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01454 }
01455
01456 }
01457 } break;
01458 case 1: {
01459
01460
01461
01462 for (Vehicle *tmp; v != NULL; v = tmp) {
01463 tmp = GetNextVehicle(v);
01464
01465 if (IsMultiheaded(v)) {
01466 if (IsTrainEngine(v)) {
01467
01468 Vehicle *rear = v->u.rail.other_multiheaded_part;
01469
01470 if (rear != NULL) {
01471 cost.AddCost(-rear->value);
01472
01473
01474
01475
01476
01477
01478
01479 if (tmp == rear) tmp = GetNextVehicle(tmp);
01480
01481 if (flags & DC_EXEC) {
01482 first = UnlinkWagon(rear, first);
01483 delete rear;
01484 }
01485 }
01486 } else if (v->u.rail.other_multiheaded_part != NULL) {
01487
01488 continue;
01489 }
01490 }
01491
01492 cost.AddCost(-v->value);
01493 if (flags & DC_EXEC) {
01494 first = UnlinkWagon(v, first);
01495 delete v;
01496 }
01497 }
01498
01499
01500 if (flags & DC_EXEC && first != NULL) {
01501 NormaliseTrainConsist(first);
01502 TrainConsistChanged(first, false);
01503 UpdateTrainGroupID(first);
01504 InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01505 }
01506 } break;
01507 }
01508 return cost;
01509 }
01510
01511 void Train::UpdateDeltaXY(Direction direction)
01512 {
01513 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01514 static const uint32 _delta_xy_table[8] = {
01515 MKIT(3, 3, -1, -1),
01516 MKIT(3, 7, -1, -3),
01517 MKIT(3, 3, -1, -1),
01518 MKIT(7, 3, -3, -1),
01519 MKIT(3, 3, -1, -1),
01520 MKIT(3, 7, -1, -3),
01521 MKIT(3, 3, -1, -1),
01522 MKIT(7, 3, -3, -1),
01523 };
01524 #undef MKIT
01525
01526 uint32 x = _delta_xy_table[direction];
01527 this->x_offs = GB(x, 0, 8);
01528 this->y_offs = GB(x, 8, 8);
01529 this->x_extent = GB(x, 16, 8);
01530 this->y_extent = GB(x, 24, 8);
01531 this->z_extent = 6;
01532 }
01533
01534 static void UpdateVarsAfterSwap(Vehicle *v)
01535 {
01536 v->UpdateDeltaXY(v->direction);
01537 v->cur_image = v->GetImage(v->direction);
01538 BeginVehicleMove(v);
01539 VehiclePositionChanged(v);
01540 EndVehicleMove(v);
01541 }
01542
01543 static inline void SetLastSpeed(Vehicle *v, int spd)
01544 {
01545 int old = v->u.rail.last_speed;
01546 if (spd != old) {
01547 v->u.rail.last_speed = spd;
01548 if (_settings_client.gui.vehicle_speed || (old == 0) != (spd == 0)) {
01549 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01550 }
01551 }
01552 }
01553
01555 static void MarkTrainAsStuck(Vehicle *v)
01556 {
01557 if (!HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01558
01559 SetBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01560 v->load_unload_time_rem = 0;
01561
01562
01563 v->cur_speed = 0;
01564 v->subspeed = 0;
01565 SetLastSpeed(v, 0);
01566
01567 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01568 }
01569 }
01570
01571 static void SwapTrainFlags(uint16 *swap_flag1, uint16 *swap_flag2)
01572 {
01573 uint16 flag1 = *swap_flag1;
01574 uint16 flag2 = *swap_flag2;
01575
01576
01577 ClrBit(*swap_flag1, VRF_GOINGUP);
01578 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01579 ClrBit(*swap_flag2, VRF_GOINGUP);
01580 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01581
01582
01583 if (HasBit(flag1, VRF_GOINGUP)) {
01584 SetBit(*swap_flag2, VRF_GOINGDOWN);
01585 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01586 SetBit(*swap_flag2, VRF_GOINGUP);
01587 }
01588 if (HasBit(flag2, VRF_GOINGUP)) {
01589 SetBit(*swap_flag1, VRF_GOINGDOWN);
01590 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01591 SetBit(*swap_flag1, VRF_GOINGUP);
01592 }
01593 }
01594
01595 static void ReverseTrainSwapVeh(Vehicle *v, int l, int r)
01596 {
01597 Vehicle *a, *b;
01598
01599
01600 for (a = v; l != 0; l--) a = a->Next();
01601 for (b = v; r != 0; r--) b = b->Next();
01602
01603 if (a != b) {
01604
01605 {
01606 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01607 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01608 a->vehstatus = tmp;
01609 }
01610
01611 Swap(a->u.rail.track, b->u.rail.track);
01612 Swap(a->direction, b->direction);
01613
01614
01615 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01616 if (b->u.rail.track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01617
01618 Swap(a->x_pos, b->x_pos);
01619 Swap(a->y_pos, b->y_pos);
01620 Swap(a->tile, b->tile);
01621 Swap(a->z_pos, b->z_pos);
01622
01623 SwapTrainFlags(&a->u.rail.flags, &b->u.rail.flags);
01624
01625
01626 UpdateVarsAfterSwap(a);
01627 UpdateVarsAfterSwap(b);
01628
01629
01630 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01631 if (b->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01632 } else {
01633 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01634 UpdateVarsAfterSwap(a);
01635
01636 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01637 }
01638
01639
01640 TrainPowerChanged(v);
01641 }
01642
01643
01649 static Vehicle *TrainOnTileEnum(Vehicle *v, void *)
01650 {
01651 return (v->type == VEH_TRAIN) ? v : NULL;
01652 }
01653
01654
01661 static Vehicle *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01662 {
01663
01664 if (v->type != VEH_TRAIN || !IsFrontEngine(v) || v->vehstatus & VS_CRASHED) return NULL;
01665
01666 TileIndex tile = *(TileIndex*)data;
01667
01668 if (TrainApproachingCrossingTile(v) != tile) return NULL;
01669
01670 return v;
01671 }
01672
01673
01680 static bool TrainApproachingCrossing(TileIndex tile)
01681 {
01682 assert(IsLevelCrossingTile(tile));
01683
01684 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01685 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01686
01687 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01688
01689 dir = ReverseDiagDir(dir);
01690 tile_from = tile + TileOffsByDiagDir(dir);
01691
01692 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01693 }
01694
01695
01702 void UpdateLevelCrossing(TileIndex tile, bool sound)
01703 {
01704 assert(IsLevelCrossingTile(tile));
01705
01706
01707 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile) || GetCrossingReservation(tile);
01708
01709 if (new_state != IsCrossingBarred(tile)) {
01710 if (new_state && sound) {
01711 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01712 }
01713 SetCrossingBarred(tile, new_state);
01714 MarkTileDirtyByTile(tile);
01715 }
01716 }
01717
01718
01724 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01725 {
01726 if (!IsCrossingBarred(tile)) {
01727 BarCrossing(tile);
01728 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01729 MarkTileDirtyByTile(tile);
01730 }
01731 }
01732
01733
01739 static void AdvanceWagonsBeforeSwap(Vehicle *v)
01740 {
01741 Vehicle *base = v;
01742 Vehicle *first = base;
01743 Vehicle *last = GetLastVehicleInChain(v);
01744 uint length = CountVehiclesInChain(v);
01745
01746 while (length > 2) {
01747 last = last->Previous();
01748 first = first->Next();
01749
01750 int differential = base->u.rail.cached_veh_length - last->u.rail.cached_veh_length;
01751
01752
01753
01754 for (int i = 0; i < differential; i++) TrainController(first, last->Next(), false);
01755
01756 base = first;
01757 length -= 2;
01758 }
01759 }
01760
01761
01767 static void AdvanceWagonsAfterSwap(Vehicle *v)
01768 {
01769
01770 Vehicle *dep = v;
01771 while (dep->Next() != NULL && (dep->u.rail.track == TRACK_BIT_DEPOT || dep->Next()->u.rail.track != TRACK_BIT_DEPOT)) {
01772 dep = dep->Next();
01773 }
01774
01775 Vehicle *leave = dep->Next();
01776
01777 if (leave != NULL) {
01778
01779 int d = TicksToLeaveDepot(dep);
01780
01781 if (d <= 0) {
01782 leave->vehstatus &= ~VS_HIDDEN;
01783 leave->u.rail.track = TrackToTrackBits(GetRailDepotTrack(leave->tile));
01784 for (int i = 0; i >= d; i--) TrainController(leave, NULL, false);
01785 }
01786 } else {
01787 dep = NULL;
01788 }
01789
01790 Vehicle *base = v;
01791 Vehicle *first = base;
01792 Vehicle *last = GetLastVehicleInChain(v);
01793 uint length = CountVehiclesInChain(v);
01794
01795
01796
01797 bool nomove = (dep == NULL);
01798
01799 while (length > 2) {
01800
01801
01802 if (base == dep) break;
01803
01804
01805 if (last == dep) nomove = true;
01806
01807 last = last->Previous();
01808 first = first->Next();
01809
01810 int differential = last->u.rail.cached_veh_length - base->u.rail.cached_veh_length;
01811
01812
01813 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL), false);
01814
01815 base = first;
01816 length -= 2;
01817 }
01818 }
01819
01820
01821 static void ReverseTrainDirection(Vehicle *v)
01822 {
01823 if (IsRailDepotTile(v->tile)) {
01824 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01825 }
01826
01827
01828 FreeTrainTrackReservation(v);
01829
01830
01831 TileIndex crossing = TrainApproachingCrossingTile(v);
01832
01833
01834 int r = CountVehiclesInChain(v) - 1;
01835
01836 AdvanceWagonsBeforeSwap(v);
01837
01838
01839 int l = 0;
01840 do {
01841 ReverseTrainSwapVeh(v, l++, r--);
01842 } while (l <= r);
01843
01844 AdvanceWagonsAfterSwap(v);
01845
01846 if (IsRailDepotTile(v->tile)) {
01847 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01848 }
01849
01850 ToggleBit(v->u.rail.flags, VRF_TOGGLE_REVERSE);
01851
01852 ClrBit(v->u.rail.flags, VRF_REVERSING);
01853
01854
01855 TrainConsistChanged(v, true);
01856
01857
01858 for (Vehicle *u = v; u != NULL; u = u->Next()) u->cur_image = u->GetImage(u->direction);
01859
01860
01861 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01862
01863
01864 crossing = TrainApproachingCrossingTile(v);
01865 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01866
01867
01868 if (v->u.rail.track & TRACK_BIT_DEPOT) {
01869
01870 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01871 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01872 return;
01873 }
01874
01875
01876
01877 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
01878 if (IsRailDepotTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE)) dir = INVALID_DIAGDIR;
01879
01880 if (UpdateSignalsOnSegment(v->tile, dir, v->owner) == SIGSEG_PBS || _settings_game.pf.reserve_paths) {
01881
01882
01883 bool first_tile_okay = !(IsTileType(v->tile, MP_RAILWAY) &&
01884 HasSignalOnTrackdir(v->tile, GetVehicleTrackdir(v)) &&
01885 !IsPbsSignal(GetSignalType(v->tile, FindFirstTrack(v->u.rail.track))));
01886
01887 if (IsRailwayStationTile(v->tile)) SetRailwayStationPlatformReservation(v->tile, TrackdirToExitdir(GetVehicleTrackdir(v)), true);
01888 if (TryPathReserve(v, false, first_tile_okay)) {
01889
01890 CheckNextTrainTile(v);
01891 } else if (v->current_order.GetType() != OT_LOADING) {
01892
01893 MarkTrainAsStuck(v);
01894 }
01895 } else if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
01896
01897 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
01898 v->load_unload_time_rem = 0;
01899 }
01900 }
01901
01908 CommandCost CmdReverseTrainDirection(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01909 {
01910 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01911
01912 Vehicle *v = GetVehicle(p1);
01913
01914 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01915
01916 if (p2 != 0) {
01917
01918
01919 if (IsMultiheaded(v) || HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) {
01920 return_cmd_error(STR_ONLY_TURN_SINGLE_UNIT);
01921 }
01922
01923 Vehicle *front = v->First();
01924
01925 if (CheckTrainStoppedInDepot(front) < 0) {
01926 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01927 }
01928
01929 if (flags & DC_EXEC) {
01930 ToggleBit(v->u.rail.flags, VRF_REVERSE_DIRECTION);
01931 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
01932 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
01933 }
01934 } else {
01935
01936 if (v->vehstatus & VS_CRASHED || v->breakdown_ctr != 0) return CMD_ERROR;
01937
01938 if (flags & DC_EXEC) {
01939
01940 if (v->current_order.IsType(OT_LOADING)) {
01941 const Vehicle *last = v;
01942 while (last->Next() != NULL) last = last->Next();
01943
01944
01945 if (!IsTileType(last->tile, MP_STATION) || GetStationIndex(last->tile) != GetStationIndex(v->tile)) {
01946 v->LeaveStation();
01947 }
01948 }
01949
01950 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL && v->cur_speed != 0) {
01951 ToggleBit(v->u.rail.flags, VRF_REVERSING);
01952 } else {
01953 v->cur_speed = 0;
01954 SetLastSpeed(v, 0);
01955 HideFillingPercent(&v->fill_percent_te_id);
01956 ReverseTrainDirection(v);
01957 }
01958 }
01959 }
01960 return CommandCost();
01961 }
01962
01969 CommandCost CmdForceTrainProceed(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01970 {
01971 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01972
01973 Vehicle *v = GetVehicle(p1);
01974
01975 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01976
01977 if (flags & DC_EXEC) v->u.rail.force_proceed = 0x50;
01978
01979 return CommandCost();
01980 }
01981
01992 CommandCost CmdRefitRailVehicle(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
01993 {
01994 CargoID new_cid = GB(p2, 0, 8);
01995 byte new_subtype = GB(p2, 8, 8);
01996 bool only_this = HasBit(p2, 16);
01997
01998 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01999
02000 Vehicle *v = GetVehicle(p1);
02001
02002 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
02003 if (CheckTrainStoppedInDepot(v) < 0) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02004 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_REFIT_DESTROYED_VEHICLE);
02005
02006
02007 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02008
02009 CommandCost cost(EXPENSES_TRAIN_RUN);
02010 uint num = 0;
02011
02012 do {
02013
02014
02015
02016 if (!CanRefitTo(v->engine_type, new_cid)) continue;
02017
02018 if (v->cargo_cap != 0) {
02019 uint16 amount = CALLBACK_FAILED;
02020
02021 if (HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_REFIT_CAPACITY)) {
02022
02023 CargoID temp_cid = v->cargo_type;
02024 byte temp_subtype = v->cargo_subtype;
02025 v->cargo_type = new_cid;
02026 v->cargo_subtype = new_subtype;
02027
02028 amount = GetVehicleCallback(CBID_VEHICLE_REFIT_CAPACITY, 0, 0, v->engine_type, v);
02029
02030 v->cargo_type = temp_cid;
02031 v->cargo_subtype = temp_subtype;
02032 }
02033
02034 if (amount == CALLBACK_FAILED) {
02035 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02036 CargoID old_cid = rvi->cargo_type;
02037
02038
02039
02040
02041 amount = rvi->capacity;
02042 switch (old_cid) {
02043 case CT_PASSENGERS: break;
02044 case CT_MAIL:
02045 case CT_GOODS: amount *= 2; break;
02046 default: amount *= 4; break;
02047 }
02048 switch (new_cid) {
02049 case CT_PASSENGERS: break;
02050 case CT_MAIL:
02051 case CT_GOODS: amount /= 2; break;
02052 default: amount /= 4; break;
02053 }
02054 }
02055
02056 if (new_cid != v->cargo_type) {
02057 cost.AddCost(GetRefitCost(v->engine_type));
02058 }
02059
02060 num += amount;
02061 if (flags & DC_EXEC) {
02062 v->cargo.Truncate((v->cargo_type == new_cid) ? amount : 0);
02063 v->cargo_type = new_cid;
02064 v->cargo_cap = amount;
02065 v->cargo_subtype = new_subtype;
02066 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
02067 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02068 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
02069 }
02070 }
02071 } while ((v = v->Next()) != NULL && !only_this);
02072
02073 _returned_refit_capacity = num;
02074
02075
02076 if (flags & DC_EXEC) TrainConsistChanged(GetVehicle(p1)->First(), false);
02077
02078 return cost;
02079 }
02080
02081 struct TrainFindDepotData {
02082 uint best_length;
02083 TileIndex tile;
02084 Owner owner;
02089 bool reverse;
02090 };
02091
02092 static bool NtpCallbFindDepot(TileIndex tile, TrainFindDepotData *tfdd, int track, uint length)
02093 {
02094 if (IsTileType(tile, MP_RAILWAY) &&
02095 IsTileOwner(tile, tfdd->owner) &&
02096 IsRailDepot(tile)) {
02097
02098 tfdd->best_length = length / DIAG_FACTOR;
02099 tfdd->tile = tile;
02100 return true;
02101 }
02102
02103 return false;
02104 }
02105
02108 static TrainFindDepotData FindClosestTrainDepot(Vehicle *v, int max_distance)
02109 {
02110 assert(!(v->vehstatus & VS_CRASHED));
02111
02112 TrainFindDepotData tfdd;
02113 tfdd.owner = v->owner;
02114 tfdd.reverse = false;
02115
02116 if (IsRailDepotTile(v->tile)) {
02117 tfdd.tile = v->tile;
02118 tfdd.best_length = 0;
02119 return tfdd;
02120 }
02121
02122 PBSTileInfo origin = FollowTrainReservation(v);
02123 if (IsRailDepotTile(origin.tile)) {
02124 tfdd.tile = origin.tile;
02125 tfdd.best_length = 0;
02126 return tfdd;
02127 }
02128
02129 tfdd.best_length = UINT_MAX;
02130
02131 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02132 if ((_settings_game.pf.reserve_paths || HasReservedTracks(v->tile, v->u.rail.track)) && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02133
02134 switch (pathfinder) {
02135 case VPF_YAPF: {
02136 bool found = YapfFindNearestRailDepotTwoWay(v, max_distance, NPF_INFINITE_PENALTY, &tfdd.tile, &tfdd.reverse);
02137 tfdd.best_length = found ? max_distance / 2 : UINT_MAX;
02138 } break;
02139
02140 case VPF_NPF: {
02141 const Vehicle *last = GetLastVehicleInChain(v);
02142 Trackdir trackdir = GetVehicleTrackdir(v);
02143 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
02144
02145 assert(trackdir != INVALID_TRACKDIR);
02146 NPFFoundTargetData ftd = NPFRouteToDepotBreadthFirstTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes, NPF_INFINITE_PENALTY);
02147 if (ftd.best_bird_dist == 0) {
02148
02149 tfdd.tile = ftd.node.tile;
02150
02151
02152
02153
02154 tfdd.best_length = ftd.best_path_dist / NPF_TILE_LENGTH;
02155 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) tfdd.reverse = true;
02156 }
02157 } break;
02158
02159 default:
02160 case VPF_NTP: {
02161
02162 DiagDirection i = TrainExitDir(v->direction, v->u.rail.track);
02163 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02164 if (tfdd.best_length == UINT_MAX){
02165 tfdd.reverse = true;
02166
02167 i = TrainExitDir(ReverseDir(v->direction), v->u.rail.track);
02168 NewTrainPathfind(v->tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02169 }
02170 } break;
02171 }
02172
02173 return tfdd;
02174 }
02175
02176 bool Train::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
02177 {
02178 TrainFindDepotData tfdd = FindClosestTrainDepot(this, 0);
02179 if (tfdd.best_length == UINT_MAX) return false;
02180
02181 if (location != NULL) *location = tfdd.tile;
02182 if (destination != NULL) *destination = GetDepotByTile(tfdd.tile)->index;
02183 if (reverse != NULL) *reverse = tfdd.reverse;
02184
02185 return true;
02186 }
02187
02196 CommandCost CmdSendTrainToDepot(TileIndex tile, DoCommandFlag flags, uint32 p1, uint32 p2, const char *text)
02197 {
02198 if (p2 & DEPOT_MASS_SEND) {
02199
02200 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02201 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_company, (p2 & VLW_MASK), p1);
02202 }
02203
02204 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02205
02206 Vehicle *v = GetVehicle(p1);
02207
02208 if (v->type != VEH_TRAIN) return CMD_ERROR;
02209
02210 return v->SendToDepot(flags, (DepotCommand)(p2 & DEPOT_COMMAND_MASK));
02211 }
02212
02213
02214 void OnTick_Train()
02215 {
02216 _age_cargo_skip_counter = (_age_cargo_skip_counter == 0) ? 184 : (_age_cargo_skip_counter - 1);
02217 }
02218
02219 static const int8 _vehicle_smoke_pos[8] = {
02220 1, 1, 1, 0, -1, -1, -1, 0
02221 };
02222
02223 static void HandleLocomotiveSmokeCloud(const Vehicle *v)
02224 {
02225 bool sound = false;
02226
02227 if (v->vehstatus & VS_TRAIN_SLOWING || v->load_unload_time_rem != 0 || v->cur_speed < 2) {
02228 return;
02229 }
02230
02231 const Vehicle *u = v;
02232
02233 do {
02234 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02235 int effect_offset = GB(v->u.rail.cached_vis_effect, 0, 4) - 8;
02236 byte effect_type = GB(v->u.rail.cached_vis_effect, 4, 2);
02237 bool disable_effect = HasBit(v->u.rail.cached_vis_effect, 6);
02238
02239
02240 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02241 disable_effect ||
02242 v->vehstatus & VS_HIDDEN) {
02243 continue;
02244 }
02245
02246
02247 if (IsRailDepotTile(v->tile) || IsTunnelTile(v->tile)) continue;
02248
02249
02250 if (!HasPowerOnRail(v->u.rail.railtype, GetTileRailType(v->tile))) continue;
02251
02252 if (effect_type == 0) {
02253
02254 effect_type = rvi->engclass;
02255 } else {
02256 effect_type--;
02257 }
02258
02259 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02260 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02261
02262 if (HasBit(v->u.rail.flags, VRF_REVERSE_DIRECTION)) {
02263 x = -x;
02264 y = -y;
02265 }
02266
02267 switch (effect_type) {
02268 case 0:
02269
02270 if (GB(v->tick_counter, 0, 4) == 0) {
02271 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02272 sound = true;
02273 }
02274 break;
02275
02276 case 1:
02277
02278 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02279 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02280 sound = true;
02281 }
02282 break;
02283
02284 case 2:
02285
02286 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02287 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02288 sound = true;
02289 }
02290 break;
02291
02292 default:
02293 break;
02294 }
02295 } while ((v = v->Next()) != NULL);
02296
02297 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02298 }
02299
02300 void Train::PlayLeaveStationSound() const
02301 {
02302 static const SoundFx sfx[] = {
02303 SND_04_TRAIN,
02304 SND_0A_TRAIN_HORN,
02305 SND_0A_TRAIN_HORN,
02306 SND_47_MAGLEV_2,
02307 SND_41_MAGLEV
02308 };
02309
02310 if (PlayVehicleSound(this, VSE_START)) return;
02311
02312 EngineID engtype = this->engine_type;
02313 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02314 }
02315
02317 static void CheckNextTrainTile(Vehicle *v)
02318 {
02319
02320 if (_settings_game.pf.path_backoff_interval == 255) return;
02321
02322
02323 if ((v->tile == v->dest_tile && v->current_order.IsType(OT_GOTO_DEPOT)) || v->u.rail.track & TRACK_BIT_DEPOT) return;
02324
02325 if (IsRailwayStationTile(v->tile) && v->current_order.ShouldStopAtStation(v, GetStationIndex(v->tile))) return;
02326
02327 if ((v->current_order.IsType(OT_NOTHING) || v->current_order.IsType(OT_LEAVESTATION) || v->current_order.IsType(OT_LOADING)) && v->GetNumOrders() > 0) return;
02328
02329 Trackdir td = GetVehicleTrackdir(v);
02330
02331
02332 if (IsTileType(v->tile, MP_RAILWAY) && HasSignalOnTrackdir(v->tile, td) &&
02333 !IsPbsSignal(GetSignalType(v->tile, TrackdirToTrack(td))) &&
02334 GetSignalStateByTrackdir(v->tile, td) == SIGNAL_STATE_RED) return;
02335
02336 CFollowTrackRail ft(v);
02337 if (!ft.Follow(v->tile, td)) return;
02338
02339 if (!HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(ft.m_new_td_bits))) {
02340
02341 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02342 if (HasPbsSignalOnTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) {
02343
02344 TrackBits tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02345 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
02346 tracks &= ~TrackCrossesTracks(TrackdirToTrack(ft.m_old_td));
02347 }
02348 ChooseTrainTrack(v, ft.m_new_tile, ft.m_exitdir, tracks, false, NULL, false);
02349 }
02350 }
02351 }
02352 }
02353
02354 static bool CheckTrainStayInDepot(Vehicle *v)
02355 {
02356
02357 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
02358 if (u->u.rail.track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02359 }
02360
02361
02362 if (v->u.rail.cached_power == 0) {
02363 v->vehstatus |= VS_STOPPED;
02364 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02365 return true;
02366 }
02367
02368 SigSegState seg_state;
02369
02370 if (v->u.rail.force_proceed == 0) {
02371
02372 if (++v->load_unload_time_rem < 37) {
02373 InvalidateWindowClasses(WC_TRAINS_LIST);
02374 return true;
02375 }
02376
02377 v->load_unload_time_rem = 0;
02378
02379 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02380 if (seg_state == SIGSEG_FULL || GetDepotWaypointReservation(v->tile)) {
02381
02382 InvalidateWindowClasses(WC_TRAINS_LIST);
02383 return true;
02384 }
02385 } else {
02386 seg_state = _settings_game.pf.reserve_paths ? SIGSEG_PBS : UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02387 }
02388
02389
02390 if (seg_state == SIGSEG_PBS && !TryPathReserve(v) && v->u.rail.force_proceed == 0) {
02391
02392 InvalidateWindowClasses(WC_TRAINS_LIST);
02393 MarkTrainAsStuck(v);
02394 return true;
02395 }
02396
02397 SetDepotWaypointReservation(v->tile, true);
02398 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
02399
02400 VehicleServiceInDepot(v);
02401 InvalidateWindowClasses(WC_TRAINS_LIST);
02402 v->PlayLeaveStationSound();
02403
02404 v->u.rail.track = TRACK_BIT_X;
02405 if (v->direction & 2) v->u.rail.track = TRACK_BIT_Y;
02406
02407 v->vehstatus &= ~VS_HIDDEN;
02408 v->cur_speed = 0;
02409
02410 v->UpdateDeltaXY(v->direction);
02411 v->cur_image = v->GetImage(v->direction);
02412 VehiclePositionChanged(v);
02413 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02414 UpdateTrainAcceleration(v);
02415 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02416
02417 return false;
02418 }
02419
02421 static void ClearPathReservation(const Vehicle *v, TileIndex tile, Trackdir track_dir)
02422 {
02423 DiagDirection dir = TrackdirToExitdir(track_dir);
02424
02425 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
02426
02427 if (GetTunnelBridgeDirection(tile) == ReverseDiagDir(dir)) {
02428 TileIndex end = GetOtherTunnelBridgeEnd(tile);
02429
02430 if (!HasVehicleOnTunnelBridge(tile, end, v)) {
02431
02432 SetTunnelBridgeReservation(tile, false);
02433 SetTunnelBridgeReservation(end, false);
02434
02435 if (_settings_client.gui.show_track_reservation) {
02436 MarkTileDirtyByTile(tile);
02437 MarkTileDirtyByTile(end);
02438 }
02439 }
02440 }
02441 } else if (IsRailwayStationTile(tile)) {
02442 TileIndex new_tile = TileAddByDiagDir(tile, dir);
02443
02444
02445 if (!IsCompatibleTrainStationTile(new_tile, tile)) {
02446 SetRailwayStationPlatformReservation(tile, ReverseDiagDir(dir), false);
02447 }
02448 } else {
02449
02450 UnreserveRailTrack(tile, TrackdirToTrack(track_dir));
02451 }
02452 }
02453
02455 void FreeTrainTrackReservation(const Vehicle *v, TileIndex origin, Trackdir orig_td)
02456 {
02457 assert(IsFrontEngine(v));
02458
02459 TileIndex tile = origin != INVALID_TILE ? origin : v->tile;
02460 Trackdir td = orig_td != INVALID_TRACKDIR ? orig_td : GetVehicleTrackdir(v);
02461 bool free_tile = tile != v->tile || !(IsRailwayStationTile(v->tile) || IsTileType(v->tile, MP_TUNNELBRIDGE));
02462 StationID station_id = IsRailwayStationTile(v->tile) ? GetStationIndex(v->tile) : INVALID_STATION;
02463
02464
02465 if (TracksOverlap(GetReservedTrackbits(tile) | TrackToTrackBits(TrackdirToTrack(td)))) return;
02466
02467 CFollowTrackRail ft(v, GetRailTypeInfo(v->u.rail.railtype)->compatible_railtypes);
02468 while (ft.Follow(tile, td)) {
02469 tile = ft.m_new_tile;
02470 TrackdirBits bits = ft.m_new_td_bits & TrackBitsToTrackdirBits(GetReservedTrackbits(tile));
02471 td = RemoveFirstTrackdir(&bits);
02472 assert(bits == TRACKDIR_BIT_NONE);
02473
02474 if (!IsValidTrackdir(td)) break;
02475
02476 if (IsTileType(tile, MP_RAILWAY)) {
02477 if (HasSignalOnTrackdir(tile, td) && !IsPbsSignal(GetSignalType(tile, TrackdirToTrack(td)))) {
02478
02479 UnreserveRailTrack(tile, TrackdirToTrack(td));
02480 break;
02481 }
02482 if (HasPbsSignalOnTrackdir(tile, td)) {
02483 if (GetSignalStateByTrackdir(tile, td) == SIGNAL_STATE_RED) {
02484
02485 break;
02486 } else {
02487
02488 SetSignalStateByTrackdir(tile, td, SIGNAL_STATE_RED);
02489 MarkTileDirtyByTile(tile);
02490 }
02491 } else if (HasSignalOnTrackdir(tile, ReverseTrackdir(td)) && IsOnewaySignal(tile, TrackdirToTrack(td))) {
02492 break;
02493 }
02494 }
02495
02496
02497 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);
02498
02499 free_tile = true;
02500 }
02501 }
02502
02504 struct TrainTrackFollowerData {
02505 TileIndex dest_coords;
02506 StationID station_index;
02507 uint best_bird_dist;
02508 uint best_track_dist;
02509 TrackdirByte best_track;
02510 };
02511
02512 static bool NtpCallbFindStation(TileIndex tile, TrainTrackFollowerData *ttfd, Trackdir track, uint length)
02513 {
02514
02515 if (ttfd->dest_coords == 0) return false;
02516
02517
02518 if ((ttfd->station_index == INVALID_STATION && tile == ttfd->dest_coords) || (
02519 IsTileType(tile, MP_STATION) &&
02520 IsRailwayStation(tile) &&
02521 GetStationIndex(tile) == ttfd->station_index
02522 )) {
02523
02524
02525
02526
02527
02528 ttfd->best_track = track;
02529 ttfd->best_bird_dist = 0;
02530 return true;
02531 } else {
02532
02533 uint dist = DistanceManhattan(tile, ttfd->dest_coords);
02534 if (dist < ttfd->best_bird_dist) {
02535 ttfd->best_bird_dist = dist;
02536 ttfd->best_track = track;
02537 }
02538 return false;
02539 }
02540 }
02541
02542 static void FillWithStationData(TrainTrackFollowerData *fd, const Vehicle *v)
02543 {
02544 fd->dest_coords = v->dest_tile;
02545 fd->station_index = v->current_order.IsType(OT_GOTO_STATION) ? v->current_order.GetDestination() : INVALID_STATION;
02546 }
02547
02548 static const byte _initial_tile_subcoord[6][4][3] = {
02549 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02550 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02551 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02552 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02553 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02554 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02555 };
02556
02557 static const byte _search_directions[6][4] = {
02558 { 0, 9, 2, 9 },
02559 { 9, 1, 9, 3 },
02560 { 9, 0, 3, 9 },
02561 { 1, 9, 9, 2 },
02562 { 3, 2, 9, 9 },
02563 { 9, 9, 1, 0 },
02564 };
02565
02566 static const byte _pick_track_table[6] = {1, 3, 2, 2, 0, 0};
02567
02580 static Track DoTrainPathfind(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool *path_not_found, bool do_track_reservation, PBSTileInfo *dest)
02581 {
02582 Track best_track;
02583
02584 #ifdef PF_BENCHMARK
02585 TIC()
02586 #endif
02587
02588 if (path_not_found) *path_not_found = false;
02589
02590 uint8 pathfinder = _settings_game.pf.pathfinder_for_trains;
02591 if (do_track_reservation && pathfinder == VPF_NTP) pathfinder = VPF_NPF;
02592
02593 switch (pathfinder) {
02594 case VPF_YAPF: {
02595 Trackdir trackdir = YapfChooseRailTrack(v, tile, enterdir, tracks, path_not_found, do_track_reservation, dest);
02596 if (trackdir != INVALID_TRACKDIR) {
02597 best_track = TrackdirToTrack(trackdir);
02598 } else {
02599 best_track = FindFirstTrack(tracks);
02600 }
02601 } break;
02602
02603 case VPF_NPF: {
02604 void *perf = NpfBeginInterval();
02605
02606 NPFFindStationOrTileData fstd;
02607 NPFFillWithOrderData(&fstd, v, do_track_reservation);
02608
02609 PBSTileInfo origin = FollowTrainReservation(v);
02610 assert(IsValidTrackdir(origin.trackdir));
02611
02612 NPFFoundTargetData ftd = NPFRouteToStationOrTile(origin.tile, origin.trackdir, true, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
02613
02614 if (dest != NULL) {
02615 dest->tile = ftd.node.tile;
02616 dest->trackdir = (Trackdir)ftd.node.direction;
02617 dest->okay = ftd.res_okay;
02618 }
02619
02620 if (ftd.best_trackdir == INVALID_TRACKDIR) {
02621
02622
02623
02624 best_track = FindFirstTrack(tracks);
02625 } else {
02626
02627
02628
02629
02630 if (ftd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02631
02632 best_track = TrackdirToTrack(ftd.best_trackdir);
02633 }
02634
02635 int time = NpfEndInterval(perf);
02636 DEBUG(yapf, 4, "[NPFT] %d us - %d rounds - %d open - %d closed -- ", time, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
02637 } break;
02638
02639 default:
02640 case VPF_NTP: {
02641 void *perf = NpfBeginInterval();
02642
02643 TrainTrackFollowerData fd;
02644 FillWithStationData(&fd, v);
02645
02646
02647 fd.best_bird_dist = UINT_MAX;
02648 fd.best_track_dist = UINT_MAX;
02649 fd.best_track = INVALID_TRACKDIR;
02650
02651 NewTrainPathfind(tile - TileOffsByDiagDir(enterdir), v->dest_tile,
02652 v->u.rail.compatible_railtypes, enterdir, (NTPEnumProc*)NtpCallbFindStation, &fd);
02653
02654
02655 if (fd.best_bird_dist != 0 && path_not_found != NULL) *path_not_found = true;
02656
02657 if (fd.best_track == INVALID_TRACKDIR) {
02658
02659 best_track = FindFirstTrack(tracks);
02660 } else {
02661 best_track = TrackdirToTrack(fd.best_track);
02662 }
02663
02664 int time = NpfEndInterval(perf);
02665 DEBUG(yapf, 4, "[NTPT] %d us - %d rounds - %d open - %d closed -- ", time, 0, 0, 0);
02666 } break;
02667 }
02668
02669 #ifdef PF_BENCHMARK
02670 TOC("PF time = ", 1)
02671 #endif
02672
02673 return best_track;
02674 }
02675
02681 static PBSTileInfo ExtendTrainReservation(const Vehicle *v, TrackBits *new_tracks, DiagDirection *enterdir)
02682 {
02683 bool no_90deg_turns = _settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg;
02684 PBSTileInfo origin = FollowTrainReservation(v);
02685
02686 CFollowTrackRail ft(v);
02687
02688 TileIndex tile = origin.tile;
02689 Trackdir cur_td = origin.trackdir;
02690 while (ft.Follow(tile, cur_td)) {
02691 if (KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE) {
02692
02693 if (HasOnewaySignalBlockingTrackdir(ft.m_new_tile, FindFirstTrackdir(ft.m_new_td_bits))) break;
02694 }
02695
02696 if (no_90deg_turns) {
02697 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02698 if (ft.m_new_td_bits == TRACKDIR_BIT_NONE) break;
02699 }
02700
02701
02702 bool target_seen = ft.m_is_station || (IsTileType(ft.m_new_tile, MP_RAILWAY) && !IsPlainRailTile(ft.m_new_tile));
02703 if (target_seen || KillFirstBit(ft.m_new_td_bits) != TRACKDIR_BIT_NONE) {
02704
02705
02706
02707
02708
02709
02710 if (HasReservedTracks(ft.m_new_tile, TrackdirBitsToTrackBits(TrackdirReachesTrackdirs(ft.m_old_td)))) break;
02711
02712
02713
02714 if (ft.m_tiles_skipped != 0) ft.m_new_tile -= TileOffsByDiagDir(ft.m_exitdir) * ft.m_tiles_skipped;
02715
02716
02717 if (new_tracks) *new_tracks = TrackdirBitsToTrackBits(ft.m_new_td_bits);
02718 if (enterdir) *enterdir = ft.m_exitdir;
02719 return PBSTileInfo(ft.m_new_tile, ft.m_old_td, false);
02720 }
02721
02722 tile = ft.m_new_tile;
02723 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02724
02725 if (IsSafeWaitingPosition(v, tile, cur_td, true, no_90deg_turns)) {
02726 bool wp_free = IsWaitingPositionFree(v, tile, cur_td, no_90deg_turns);
02727 if (!(wp_free && TryReserveRailTrack(tile, TrackdirToTrack(cur_td)))) break;
02728
02729 return PBSTileInfo(tile, cur_td, true);
02730 }
02731
02732 if (!TryReserveRailTrack(tile, TrackdirToTrack(cur_td))) break;
02733 }
02734
02735 if (ft.m_err == CFollowTrackRail::EC_OWNER || ft.m_err == CFollowTrackRail::EC_NO_WAY) {
02736
02737 return PBSTileInfo(ft.m_old_tile, ft.m_old_td, true);
02738 }
02739
02740
02741 tile = origin.tile;
02742 cur_td = origin.trackdir;
02743 TileIndex stopped = ft.m_old_tile;
02744 Trackdir stopped_td = ft.m_old_td;
02745 while (tile != stopped || cur_td != stopped_td) {
02746 if (!ft.Follow(tile, cur_td)) break;
02747
02748 if (no_90deg_turns) {
02749 ft.m_new_td_bits &= ~TrackdirCrossesTrackdirs(ft.m_old_td);
02750 assert(ft.m_new_td_bits != TRACKDIR_BIT_NONE);
02751 }
02752 assert(KillFirstBit(ft.m_new_td_bits) == TRACKDIR_BIT_NONE);
02753
02754 tile = ft.m_new_tile;
02755 cur_td = FindFirstTrackdir(ft.m_new_td_bits);
02756
02757 UnreserveRailTrack(tile, TrackdirToTrack(cur_td));
02758 }
02759
02760
02761 return PBSTileInfo();
02762 }
02763
02774 static bool TryReserveSafeTrack(const Vehicle *v, TileIndex tile, Trackdir td, bool override_tailtype)
02775 {
02776 if (_settings_game.pf.pathfinder_for_trains == VPF_YAPF) {
02777 return YapfRailFindNearestSafeTile(v, tile, td, override_tailtype);
02778 } else {
02779 return NPFRouteToSafeTile(v, tile, td, override_tailtype).res_okay;
02780 }
02781 }
02782
02784 class VehicleOrderSaver
02785 {
02786 private:
02787 Vehicle *v;
02788 Order old_order;
02789 TileIndex old_dest_tile;
02790 StationID old_last_station_visited;
02791 VehicleOrderID index;
02792
02793 public:
02794 VehicleOrderSaver(Vehicle *_v) :
02795 v(_v),
02796 old_order(_v->current_order),
02797 old_dest_tile(_v->dest_tile),
02798 old_last_station_visited(_v->last_station_visited),
02799 index(_v->cur_order_index)
02800 {
02801 }
02802
02803 ~VehicleOrderSaver()
02804 {
02805 this->v->current_order = this->old_order;
02806 this->v->dest_tile = this->old_dest_tile;
02807 this->v->last_station_visited = this->old_last_station_visited;
02808 }
02809
02815 bool SwitchToNextOrder(bool skip_first)
02816 {
02817 if (this->v->GetNumOrders() == 0) return false;
02818
02819 if (skip_first) ++this->index;
02820
02821 int conditional_depth = 0;
02822
02823 do {
02824
02825 if (this->index >= this->v->GetNumOrders()) this->index = 0;
02826
02827 Order *order = GetVehicleOrder(this->v, this->index);
02828 assert(order != NULL);
02829
02830 switch (order->GetType()) {
02831 case OT_GOTO_DEPOT:
02832
02833 if ((order->GetDepotOrderType() & ODTFB_SERVICE) && !this->v->NeedsServicing()) break;
02834 case OT_GOTO_STATION:
02835 case OT_GOTO_WAYPOINT:
02836 this->v->current_order = *order;
02837 UpdateOrderDest(this->v, order);
02838 return true;
02839 case OT_CONDITIONAL: {
02840 if (conditional_depth > this->v->GetNumOrders()) return false;
02841 VehicleOrderID next = ProcessConditionalOrder(order, this->v);
02842 if (next != INVALID_VEH_ORDER_ID) {
02843 conditional_depth++;
02844 this->index = next;
02845
02846 continue;
02847 }
02848 break;
02849 }
02850 default:
02851 break;
02852 }
02853
02854
02855 ++this->index;
02856 } while (this->index != this->v->cur_order_index);
02857
02858 return false;
02859 }
02860 };
02861
02862
02863 static Track ChooseTrainTrack(Vehicle *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks, bool force_res, bool *got_reservation, bool mark_stuck)
02864 {
02865 Track best_track = INVALID_TRACK;
02866 bool do_track_reservation = _settings_game.pf.reserve_paths || force_res;
02867 bool changed_signal = false;
02868
02869 assert((tracks & ~TRACK_BIT_MASK) == 0);
02870
02871 if (got_reservation != NULL) *got_reservation = false;
02872
02873
02874 TrackBits res_tracks = (TrackBits)(GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir));
02875
02876 if (res_tracks != TRACK_BIT_NONE) return FindFirstTrack(res_tracks);
02877
02878
02879 if (KillFirstBit(tracks) == TRACK_BIT_NONE) {
02880 Track track = FindFirstTrack(tracks);
02881
02882 if (track != INVALID_TRACK && HasPbsSignalOnTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir))) {
02883 do_track_reservation = true;
02884 changed_signal = true;
02885 SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(track, enterdir), SIGNAL_STATE_GREEN);
02886 } else if (!do_track_reservation) {
02887 return track;
02888 }
02889 best_track = track;
02890 }
02891
02892 PBSTileInfo res_dest(tile, INVALID_TRACKDIR, false);
02893 DiagDirection dest_enterdir = enterdir;
02894 if (do_track_reservation) {
02895
02896
02897
02898 CheckIfTrainNeedsService(v);
02899 if (v->current_order.IsType(OT_DUMMY) || v->current_order.IsType(OT_CONDITIONAL) || v->current_order.IsType(OT_GOTO_DEPOT)) ProcessOrders(v);
02900
02901 res_dest = ExtendTrainReservation(v, &tracks, &dest_enterdir);
02902 if (res_dest.tile == INVALID_TILE) {
02903
02904 if (mark_stuck) MarkTrainAsStuck(v);
02905 if (changed_signal) SetSignalStateByTrackdir(tile, TrackEnterdirToTrackdir(best_track, enterdir), SIGNAL_STATE_RED);
02906 return FindFirstTrack(tracks);
02907 }
02908 }
02909
02910
02911 VehicleOrderSaver orders(v);
02912
02913
02914
02915
02916
02917
02918
02919 if (v->current_order.IsType(OT_LEAVESTATION)) {
02920 orders.SwitchToNextOrder(false);
02921 } else if (v->current_order.IsType(OT_LOADING) || (!v->current_order.IsType(OT_GOTO_DEPOT) && (
02922 v->current_order.IsType(OT_GOTO_STATION) ?
02923 IsRailwayStationTile(v->tile) && v->current_order.GetDestination() == GetStationIndex(v->tile) :
02924 v->tile == v->dest_tile))) {
02925 orders.SwitchToNextOrder(true);
02926 }
02927
02928 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02929
02930 bool path_not_found = false;
02931 TileIndex new_tile = res_dest.tile;
02932
02933 Track next_track = DoTrainPathfind(v, new_tile, dest_enterdir, tracks, &path_not_found, do_track_reservation, &res_dest);
02934 if (new_tile == tile) best_track = next_track;
02935
02936
02937 if (path_not_found) {
02938
02939 if (!HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02940
02941 SetBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02942
02943 AI::NewEvent(v->owner, new AIEventVehicleLost(v->index));
02944 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
02945 SetDParam(0, v->index);
02946 AddNewsItem(
02947 STR_TRAIN_IS_LOST,
02948 NS_ADVICE,
02949 v->index,
02950 0);
02951 }
02952 }
02953 } else {
02954
02955 if (HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02956
02957 ClrBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02958
02959 }
02960 }
02961 }
02962
02963
02964 if (!do_track_reservation) return best_track;
02965
02966
02967 if (res_dest.tile != INVALID_TILE && !res_dest.okay) {
02968 if (mark_stuck) MarkTrainAsStuck(v);
02969 FreeTrainTrackReservation(v);
02970 return best_track;
02971 }
02972
02973
02974 if (res_dest.tile == INVALID_TILE) {
02975
02976 PBSTileInfo origin = FollowTrainReservation(v);
02977 if (TryReserveSafeTrack(v, origin.tile, origin.trackdir, false)) {
02978 TrackBits res = GetReservedTrackbits(tile) & DiagdirReachesTracks(enterdir);
02979 best_track = FindFirstTrack(res);
02980 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
02981 if (got_reservation != NULL) *got_reservation = true;
02982 if (changed_signal) MarkTileDirtyByTile(tile);
02983 } else {
02984 FreeTrainTrackReservation(v);
02985 if (mark_stuck) MarkTrainAsStuck(v);
02986 }
02987 return best_track;
02988 }
02989
02990 if (got_reservation != NULL) *got_reservation = true;
02991
02992
02993 while (!IsSafeWaitingPosition(v, res_dest.tile, res_dest.trackdir, true, _settings_game.pf.forbid_90_deg)) {
02994
02995 DiagDirection exitdir = TrackdirToExitdir(res_dest.trackdir);
02996 TileIndex next_tile = TileAddByDiagDir(res_dest.tile, exitdir);
02997 TrackBits reachable = TrackdirBitsToTrackBits((TrackdirBits)(GetTileTrackStatus(next_tile, TRANSPORT_RAIL, 0))) & DiagdirReachesTracks(exitdir);
02998 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
02999 reachable &= ~TrackCrossesTracks(TrackdirToTrack(res_dest.trackdir));
03000 }
03001
03002
03003 if (orders.SwitchToNextOrder(true)) {
03004 PBSTileInfo cur_dest;
03005 DoTrainPathfind(v, next_tile, exitdir, reachable, NULL, true, &cur_dest);
03006 if (cur_dest.tile != INVALID_TILE) {
03007 res_dest = cur_dest;
03008 if (res_dest.okay) continue;
03009
03010 FreeTrainTrackReservation(v);
03011 if (mark_stuck) MarkTrainAsStuck(v);
03012 if (got_reservation != NULL) *got_reservation = false;
03013 changed_signal = false;
03014 break;
03015 }
03016 }
03017
03018 if (!TryReserveSafeTrack(v, res_dest.tile, res_dest.trackdir, true)) {
03019 FreeTrainTrackReservation(v);
03020 if (mark_stuck) MarkTrainAsStuck(v);
03021 if (got_reservation != NULL) *got_reservation = false;
03022 changed_signal = false;
03023 }
03024 break;
03025 }
03026
03027 TryReserveRailTrack(v->tile, TrackdirToTrack(GetVehicleTrackdir(v)));
03028
03029 if (changed_signal) MarkTileDirtyByTile(tile);
03030
03031 return best_track;
03032 }
03033
03042 bool TryPathReserve(Vehicle *v, bool mark_as_stuck, bool first_tile_okay)
03043 {
03044 assert(v->type == VEH_TRAIN && IsFrontEngine(v));
03045
03046
03047
03048
03049 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03050 if (GetDepotWaypointReservation(v->tile)) {
03051 if (mark_as_stuck) MarkTrainAsStuck(v);
03052 return false;
03053 } else {
03054
03055 TileIndex next_tile = TileAddByDiagDir(v->tile, GetRailDepotDirection(v->tile));
03056 if (HasReservedTracks(next_tile, DiagdirReachesTracks(GetRailDepotDirection(v->tile)))) return false;
03057 }
03058 }
03059
03060
03061 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
03062 TileIndex next_tile = TileAddByDiagDir(v->tile, dir);
03063 if (IsTileType(next_tile, MP_RAILWAY) && HasReservedTracks(next_tile, DiagdirReachesTracks(dir))) {
03064
03065 Trackdir td = FindFirstTrackdir(TrackBitsToTrackdirBits(GetReservedTrackbits(next_tile)) & DiagdirReachesTrackdirs(dir));
03066 if (HasSignalOnTrackdir(next_tile, td) && HasSignalOnTrackdir(next_tile, ReverseTrackdir(td)) &&
03067 !IsPbsSignal(GetSignalType(next_tile, TrackdirToTrack(td)))) {
03068
03069 if (mark_as_stuck) MarkTrainAsStuck(v);
03070 return false;
03071 }
03072 }
03073
03074 bool other_train = false;
03075 PBSTileInfo origin = FollowTrainReservation(v, &other_train);
03076
03077 if (origin.okay && (v->tile != origin.tile || first_tile_okay)) {
03078
03079 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03080 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03081 return true;
03082 }
03083
03084
03085
03086
03087 if (other_train && v->tile != origin.tile) {
03088 if (mark_as_stuck) MarkTrainAsStuck(v);
03089 return false;
03090 }
03091
03092
03093 if (v->u.rail.track & TRACK_BIT_DEPOT) {
03094 SetDepotWaypointReservation(v->tile, true);
03095 if (_settings_client.gui.show_track_reservation) MarkTileDirtyByTile(v->tile);
03096 }
03097
03098 DiagDirection exitdir = TrackdirToExitdir(origin.trackdir);
03099 TileIndex new_tile = TileAddByDiagDir(origin.tile, exitdir);
03100 TrackBits reachable = TrackdirBitsToTrackBits(TrackStatusToTrackdirBits(GetTileTrackStatus(new_tile, TRANSPORT_RAIL, 0)) & DiagdirReachesTrackdirs(exitdir));
03101
03102 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) reachable &= ~TrackCrossesTracks(TrackdirToTrack(origin.trackdir));
03103
03104 bool res_made = false;
03105 ChooseTrainTrack(v, new_tile, exitdir, reachable, true, &res_made, mark_as_stuck);
03106
03107 if (!res_made) {
03108
03109 if (v->u.rail.track & TRACK_BIT_DEPOT) SetDepotWaypointReservation(v->tile, false);
03110 return false;
03111 }
03112
03113 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03114 v->load_unload_time_rem = 0;
03115 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03116 }
03117 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
03118 return true;
03119 }
03120
03121
03122 static bool CheckReverseTrain(Vehicle *v)
03123 {
03124 if (_settings_game.difficulty.line_reverse_mode != 0 ||
03125 v->u.rail.track == TRACK_BIT_DEPOT || v->u.rail.track == TRACK_BIT_WORMHOLE ||
03126 !(v->direction & 1)) {
03127 return false;
03128 }
03129
03130 uint reverse_best = 0;
03131
03132 assert(v->u.rail.track);
03133
03134 switch (_settings_game.pf.pathfinder_for_trains) {
03135 case VPF_YAPF:
03136 reverse_best = YapfCheckReverseTrain(v);
03137 break;
03138
03139 case VPF_NPF: {
03140 NPFFindStationOrTileData fstd;
03141 NPFFoundTargetData ftd;
03142 Vehicle *last = GetLastVehicleInChain(v);
03143
03144 NPFFillWithOrderData(&fstd, v);
03145
03146 Trackdir trackdir = GetVehicleTrackdir(v);
03147 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
03148 assert(trackdir != INVALID_TRACKDIR);
03149 assert(trackdir_rev != INVALID_TRACKDIR);
03150
03151 ftd = NPFRouteToStationOrTileTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
03152 if (ftd.best_bird_dist != 0) {
03153
03154 reverse_best = false;
03155 } else {
03156 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) {
03157 reverse_best = true;
03158 } else {
03159 reverse_best = false;
03160 }
03161 }
03162 } break;
03163
03164 default:
03165 case VPF_NTP: {
03166 TrainTrackFollowerData fd;
03167 FillWithStationData(&fd, v);
03168
03169 int i = _search_directions[FindFirstTrack(v->u.rail.track)][DirToDiagDir(v->direction)];
03170
03171 int best_track = -1;
03172 uint reverse = 0;
03173 uint best_bird_dist = 0;
03174 uint best_track_dist = 0;
03175
03176 for (;;) {
03177 fd.best_bird_dist = UINT_MAX;
03178 fd.best_track_dist = UINT_MAX;
03179
03180 NewTrainPathfind(v->tile, v->dest_tile, v->u.rail.compatible_railtypes, (DiagDirection)(reverse ^ i), (NTPEnumProc*)NtpCallbFindStation, &fd);
03181
03182 if (best_track != -1) {
03183 if (best_bird_dist != 0) {
03184 if (fd.best_bird_dist != 0) {
03185
03186 if (fd.best_bird_dist > best_bird_dist) goto bad;
03187 if (fd.best_bird_dist < best_bird_dist) goto good;
03188 } else {
03189
03190 goto good;
03191 }
03192 } else {
03193 if (fd.best_bird_dist != 0) {
03194
03195 goto bad;
03196 } else {
03197
03198 if (fd.best_track_dist > best_track_dist) goto bad;
03199 if (fd.best_track_dist < best_track_dist) goto good;
03200 }
03201 }
03202
03203
03204
03205 int r = GB(Random(), 0, 8);
03206 if (_pick_track_table[i] == (v->direction & 3)) r += 80;
03207 if (_pick_track_table[best_track] == (v->direction & 3)) r -= 80;
03208 if (r <= 127) goto bad;
03209 }
03210 good:;
03211 best_track = i;
03212 best_bird_dist = fd.best_bird_dist;
03213 best_track_dist = fd.best_track_dist;
03214 reverse_best = reverse;
03215 bad:;
03216 if (reverse != 0) break;
03217 reverse = 2;
03218 }
03219 } break;
03220 }
03221
03222 return reverse_best != 0;
03223 }
03224
03225 TileIndex Train::GetOrderStationLocation(StationID station)
03226 {
03227 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
03228
03229 const Station *st = GetStation(station);
03230 if (!(st->facilities & FACIL_TRAIN)) {
03231
03232 this->cur_order_index++;
03233 return 0;
03234 }
03235
03236 return st->xy;
03237 }
03238
03239 void Train::MarkDirty()
03240 {
03241 Vehicle *v = this;
03242 do {
03243 v->cur_image = v->GetImage(v->direction);
03244 MarkSingleVehicleDirty(v);
03245 } while ((v = v->Next()) != NULL);
03246
03247
03248 TrainCargoChanged(this);
03249 UpdateTrainAcceleration(this);
03250 }
03251
03262 static int UpdateTrainSpeed(Vehicle *v)
03263 {
03264 uint accel;
03265
03266 if (v->vehstatus & VS_STOPPED || HasBit(v->u.rail.flags, VRF_REVERSING) || HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
03267 switch (_settings_game.vehicle.train_acceleration_model) {
03268 default: NOT_REACHED();
03269 case TAM_ORIGINAL: accel = v->acceleration * -4; break;
03270 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_BRAKE); break;
03271 }
03272 } else {
03273 switch (_settings_game.vehicle.train_acceleration_model) {
03274 default: NOT_REACHED();
03275 case TAM_ORIGINAL: accel = v->acceleration * 2; break;
03276 case TAM_REALISTIC: accel = GetTrainAcceleration(v, AM_ACCEL); break;
03277 }
03278 }
03279
03280 uint spd = v->subspeed + accel;
03281 v->subspeed = (byte)spd;
03282 {
03283 int tempmax = v->max_speed;
03284 if (v->cur_speed > v->max_speed)
03285 tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
03286 v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
03287 }
03288
03289
03290
03291
03292
03293
03294
03295
03296
03297
03298
03299
03300 int scaled_spd = spd * 3 >> 2;
03301
03302 scaled_spd += v->progress;
03303 v->progress = 0;
03304 return scaled_spd;
03305 }
03306
03307 static void TrainEnterStation(Vehicle *v, StationID station)
03308 {
03309 v->last_station_visited = station;
03310
03311
03312 Station *st = GetStation(station);
03313 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
03314 st->had_vehicle_of_type |= HVOT_TRAIN;
03315 SetDParam(0, st->index);
03316 AddNewsItem(
03317 STR_8801_CITIZENS_CELEBRATE_FIRST,
03318 v->owner == _local_company ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
03319 v->index,
03320 st->index
03321 );
03322 AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
03323 }
03324
03325 v->BeginLoading();
03326
03327 StationAnimationTrigger(st, v->tile, STAT_ANIM_TRAIN_ARRIVES);
03328 }
03329
03330 static byte AfterSetTrainPos(Vehicle *v, bool new_tile)
03331 {
03332 byte old_z = v->z_pos;
03333 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
03334
03335 if (new_tile) {
03336 ClrBit(v->u.rail.flags, VRF_GOINGUP);
03337 ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
03338
03339 if (v->u.rail.track == TRACK_BIT_X || v->u.rail.track == TRACK_BIT_Y) {
03340
03341
03342
03343
03344
03345 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
03346 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
03347
03348 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
03349
03350
03351
03352 if (middle_z != v->z_pos && !IsTunnelTile(TileVirtXY(v->x_pos, v->y_pos))) {
03353 SetBit(v->u.rail.flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
03354 }
03355 }
03356 }
03357
03358 VehiclePositionChanged(v);
03359 EndVehicleMove(v);
03360 return old_z;
03361 }
03362
03363 static const Direction _new_vehicle_direction_table[11] = {
03364 DIR_N , DIR_NW, DIR_W , INVALID_DIR,
03365 DIR_NE, DIR_N , DIR_SW, INVALID_DIR,
03366 DIR_E , DIR_SE, DIR_S
03367 };
03368
03369 static inline Direction GetNewVehicleDirectionByTile(TileIndex new_tile, TileIndex old_tile)
03370 {
03371 uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
03372 TileX(new_tile) - TileX(old_tile) + 1;
03373 assert(offs < 11);
03374 return _new_vehicle_direction_table[offs];
03375 }
03376
03377 static inline int GetDirectionToVehicle(const Vehicle *v, int x, int y)
03378 {
03379 byte offs;
03380
03381 x -= v->x_pos;
03382 if (x >= 0) {
03383 offs = (x > 2) ? 0 : 1;
03384 } else {
03385 offs = (x < -2) ? 2 : 1;
03386 }
03387
03388 y -= v->y_pos;
03389 if (y >= 0) {
03390 offs += ((y > 2) ? 0 : 1) * 4;
03391 } else {
03392 offs += ((y < -2) ? 2 : 1) * 4;
03393 }
03394
03395 assert(offs < 11);
03396 return _new_vehicle_direction_table[offs];
03397 }
03398
03399
03400 static inline bool CheckCompatibleRail(const Vehicle *v, TileIndex tile)
03401 {
03402 return
03403 IsTileOwner(tile, v->owner) && (
03404 !IsFrontEngine(v) ||
03405 HasBit(v->u.rail.compatible_railtypes, GetRailType(tile))
03406 );
03407 }
03408
03409 struct RailtypeSlowdownParams {
03410 byte small_turn, large_turn;
03411 byte z_up;
03412 byte z_down;
03413 };
03414
03415 static const RailtypeSlowdownParams _railtype_slowdown[] = {
03416
03417 {256 / 4, 256 / 2, 256 / 4, 2},
03418 {256 / 4, 256 / 2, 256 / 4, 2},
03419 {256 / 4, 256 / 2, 256 / 4, 2},
03420 {0, 256 / 2, 256 / 4, 2},
03421 };
03422
03424 static inline void AffectSpeedByDirChange(Vehicle *v, Direction new_dir)
03425 {
03426 if (_settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03427
03428 DirDiff diff = DirDifference(v->direction, new_dir);
03429 if (diff == DIRDIFF_SAME) return;
03430
03431 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03432 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
03433 }
03434
03436 static inline void AffectSpeedByZChange(Vehicle *v, byte old_z)
03437 {
03438 if (old_z == v->z_pos || _settings_game.vehicle.train_acceleration_model != TAM_ORIGINAL) return;
03439
03440 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
03441
03442 if (old_z < v->z_pos) {
03443 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
03444 } else {
03445 uint16 spd = v->cur_speed + rsp->z_down;
03446 if (spd <= v->max_speed) v->cur_speed = spd;
03447 }
03448 }
03449
03450 static bool TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
03451 {
03452 if (IsTileType(tile, MP_RAILWAY) &&
03453 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
03454 TrackdirBits tracks = TrackBitsToTrackdirBits(GetTrackBits(tile)) & DiagdirReachesTrackdirs(dir);
03455 Trackdir trackdir = FindFirstTrackdir(tracks);
03456 if (UpdateSignalsOnSegment(tile, TrackdirToExitdir(trackdir), GetTileOwner(tile)) == SIGSEG_PBS && HasSignalOnTrackdir(tile, trackdir)) {
03457
03458 if (!IsPbsSignal(GetSignalType(tile, TrackdirToTrack(trackdir)))) return true;
03459 }
03460 }
03461 return false;
03462 }
03463
03464
03465 static void SetVehicleCrashed(Vehicle *v)
03466 {
03467 if (v->u.rail.crash_anim_pos != 0) return;
03468
03469
03470 if (IsFrontEngine(v)) {
03471
03472
03473 FreeTrainTrackReservation(v);
03474 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
03475 ClearPathReservation(u, u->tile, GetVehicleTrackdir(u));
03476 if (IsTileType(u->tile, MP_TUNNELBRIDGE)) {
03477
03478
03479 SetTunnelBridgeReservation(GetOtherTunnelBridgeEnd(u->tile), false);
03480 }
03481 }
03482 }
03483
03484
03485 TileIndex crossing = TrainApproachingCrossingTile(v);
03486
03487 v->u.rail.crash_anim_pos++;
03488
03489 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03490 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
03491
03492 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03493 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
03494 }
03495
03496 InvalidateWindowClassesData(WC_TRAINS_LIST, 0);
03497
03498 for (; v != NULL; v = v->Next()) {
03499 v->vehstatus |= VS_CRASHED;
03500 MarkSingleVehicleDirty(v);
03501 }
03502
03503
03504 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03505 }
03506
03507 static uint CountPassengersInTrain(const Vehicle *v)
03508 {
03509 uint num = 0;
03510
03511 for (; v != NULL; v = v->Next()) {
03512 if (IsCargoInClass(v->cargo_type, CC_PASSENGERS)) num += v->cargo.Count();
03513 }
03514
03515 return num;
03516 }
03517
03524 static uint TrainCrashed(Vehicle *v)
03525 {
03526
03527 if (v->vehstatus & VS_CRASHED) return 0;
03528
03529
03530 uint num = 2 + CountPassengersInTrain(v);
03531
03532 SetVehicleCrashed(v);
03533 AI::NewEvent(v->owner, new AIEventVehicleCrashed(v->index, v->tile, AIEventVehicleCrashed::CRASH_TRAIN));
03534
03535 return num;
03536 }
03537
03538 struct TrainCollideChecker {
03539 Vehicle *v;
03540 uint num;
03541 };
03542
03543 static Vehicle *FindTrainCollideEnum(Vehicle *v, void *data)
03544 {
03545 TrainCollideChecker *tcc = (TrainCollideChecker*)data;
03546
03547 if (v->type != VEH_TRAIN) return NULL;
03548
03549
03550 Vehicle *coll = v->First();
03551
03552
03553 if (coll != tcc->v && v->u.rail.track != TRACK_BIT_DEPOT && abs(v->z_pos - tcc->v->z_pos) < 6) {
03554 int x_diff = v->x_pos - tcc->v->x_pos;
03555 int y_diff = v->y_pos - tcc->v->y_pos;
03556
03557
03558 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03559
03560
03561 tcc->num += TrainCrashed(tcc->v);
03562 tcc->num += TrainCrashed(coll);
03563
03564
03565
03566 const Vehicle *u;
03567 FOR_ALL_VEHICLES(u) {
03568 if (u->type == VEH_TRAIN && HASBITS(u->vehstatus, VS_CRASHED) && (u->u.rail.track & TRACK_BIT_DEPOT) == TRACK_BIT_NONE) {
03569 TrackBits trackbits = u->u.rail.track;
03570 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03571
03572 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(u->tile));
03573 }
03574 TryReserveRailTrack(u->tile, TrackBitsToTrack(trackbits));
03575 }
03576 }
03577 }
03578
03579 return NULL;
03580 }
03581
03588 static bool CheckTrainCollision(Vehicle *v)
03589 {
03590
03591 if (v->u.rail.track == TRACK_BIT_DEPOT) return false;
03592
03593 assert(v->u.rail.track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03594
03595 TrainCollideChecker tcc;
03596 tcc.v = v;
03597 tcc.num = 0;
03598
03599
03600 if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
03601 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03602 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03603 } else {
03604 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03605 }
03606
03607
03608 if (tcc.num == 0) return false;
03609
03610 SetDParam(0, tcc.num);
03611 AddNewsItem(STR_8868_TRAIN_CRASH_DIE_IN_FIREBALL,
03612 NS_ACCIDENT_VEHICLE,
03613 v->index,
03614 0
03615 );
03616
03617 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03618 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03619 return true;
03620 }
03621
03622 static Vehicle *CheckVehicleAtSignal(Vehicle *v, void *data)
03623 {
03624 DiagDirection exitdir = *(DiagDirection *)data;
03625
03626
03627 if (v->type == VEH_TRAIN && IsFrontEngine(v) && (v->u.rail.track & TRACK_BIT_MASK) != 0 && !(v->vehstatus & VS_CRASHED)) {
03628 if (v->cur_speed <= 5 && TrainExitDir(v->direction, v->u.rail.track) == exitdir) return v;
03629 }
03630
03631 return NULL;
03632 }
03633
03634 static void TrainController(Vehicle *v, Vehicle *nomove, bool update_image)
03635 {
03636 Vehicle *prev;
03637
03638
03639 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03640 DiagDirection enterdir = DIAGDIR_BEGIN;
03641 bool update_signals_crossing = false;
03642 BeginVehicleMove(v);
03643
03644 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03645 if (v->u.rail.track != TRACK_BIT_WORMHOLE) {
03646
03647 if (gp.old_tile == gp.new_tile) {
03648
03649 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03650
03651 gp.x = v->x_pos;
03652 gp.y = v->y_pos;
03653 } else {
03654
03655
03656
03657 if (IsFrontEngine(v) && !TrainCheckIfLineEnds(v)) return;
03658
03659 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03660 if (HasBit(r, VETS_CANNOT_ENTER)) {
03661 goto invalid_rail;
03662 }
03663 if (HasBit(r, VETS_ENTERED_STATION)) {
03664
03665 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03666 }
03667 }
03668 } else {
03669
03670
03671
03672 Direction dir = GetNewVehicleDirectionByTile(gp.new_tile, gp.old_tile);
03673 enterdir = DirToDiagDir(dir);
03674 assert(IsValidDiagDirection(enterdir));
03675
03676
03677
03678 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir));
03679 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(enterdir);
03680
03681 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
03682 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts) & reachable_trackdirs);
03683
03684 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03685 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg && prev == NULL) {
03686
03687
03688 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
03689 }
03690
03691 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03692
03693
03694
03695 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03696
03697 TrackBits chosen_track;
03698 if (prev == NULL) {
03699
03700
03701 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits, false, NULL, true));
03702 assert(chosen_track & (bits | GetReservedTrackbits(gp.new_tile)));
03703
03704
03705 if (red_signals & chosen_track && v->u.rail.force_proceed == 0) {
03706
03707 Trackdir i = FindFirstTrackdir(trackdirbits);
03708
03709
03710 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) return;
03711
03712 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03713 v->cur_speed = 0;
03714 v->subspeed = 0;
03715 v->progress = 255 - 100;
03716 if (_settings_game.pf.wait_oneway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_oneway_signal * 20) return;
03717 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03718 v->cur_speed = 0;
03719 v->subspeed = 0;
03720 v->progress = 255 - 10;
03721 if (_settings_game.pf.wait_twoway_signal == 255 || ++v->load_unload_time_rem < _settings_game.pf.wait_twoway_signal * 73) {
03722 DiagDirection exitdir = TrackdirToExitdir(i);
03723 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03724
03725 exitdir = ReverseDiagDir(exitdir);
03726
03727
03728 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckVehicleAtSignal)) return;
03729 }
03730 }
03731
03732
03733
03734 if (_settings_game.pf.wait_for_pbs_path == 255 && UpdateSignalsOnSegment(v->tile, enterdir, v->owner) == SIGSEG_PBS) {
03735 v->load_unload_time_rem = 0;
03736 return;
03737 }
03738 goto reverse_train_direction;
03739 } else {
03740 TryReserveRailTrack(gp.new_tile, TrackBitsToTrack(chosen_track));
03741 }
03742 } else {
03743 static const TrackBits _matching_tracks[8] = {
03744 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03745 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y,
03746 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03747 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y
03748 };
03749
03750
03751 chosen_track = (TrackBits)(byte)(_matching_tracks[GetDirectionToVehicle(prev, gp.x, gp.y)] & bits);
03752 }
03753
03754
03755 assert(
03756 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03757 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03758 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03759
03760
03761 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03762 gp.x = (gp.x & ~0xF) | b[0];
03763 gp.y = (gp.y & ~0xF) | b[1];
03764 Direction chosen_dir = (Direction)b[2];
03765
03766
03767 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03768 if (HasBit(r, VETS_CANNOT_ENTER)) {
03769 goto invalid_rail;
03770 }
03771
03772 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03773 Track track = FindFirstTrack(chosen_track);
03774 Trackdir tdir = TrackDirectionToTrackdir(track, chosen_dir);
03775 if (IsFrontEngine(v) && HasPbsSignalOnTrackdir(gp.new_tile, tdir)) {
03776 SetSignalStateByTrackdir(gp.new_tile, tdir, SIGNAL_STATE_RED);
03777 MarkTileDirtyByTile(gp.new_tile);
03778 }
03779
03780
03781 if (v->Next() == NULL) ClearPathReservation(v, v->tile, GetVehicleTrackdir(v));
03782
03783 v->tile = gp.new_tile;
03784
03785 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03786 TrainPowerChanged(v->First());
03787 }
03788
03789 v->u.rail.track = chosen_track;
03790 assert(v->u.rail.track);
03791 }
03792
03793
03794
03795 update_signals_crossing = true;
03796
03797 if (prev == NULL) AffectSpeedByDirChange(v, chosen_dir);
03798
03799 v->direction = chosen_dir;
03800
03801 if (IsFrontEngine(v)) {
03802 v->load_unload_time_rem = 0;
03803
03804
03805 TileIndex crossing = TrainApproachingCrossingTile(v);
03806 if (crossing != INVALID_TILE && GetCrossingReservation(crossing)) SndPlayTileFx(SND_0E_LEVEL_CROSSING, crossing);
03807
03808
03809 CheckNextTrainTile(v);
03810 }
03811 }
03812 } else {
03813
03814
03815
03816 if (!(v->vehstatus & VS_HIDDEN)) {
03817 v->cur_speed =
03818 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03819 }
03820
03821 if (IsTileType(gp.new_tile, MP_TUNNELBRIDGE) && HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03822
03823 if (IsFrontEngine(v)) {
03824 TryReserveRailTrack(gp.new_tile, DiagDirToDiagTrack(GetTunnelBridgeDirection(gp.new_tile)));
03825 CheckNextTrainTile(v);
03826 }
03827 } else {
03828 v->x_pos = gp.x;
03829 v->y_pos = gp.y;
03830 VehiclePositionChanged(v);
03831 if (!(v->vehstatus & VS_HIDDEN)) EndVehicleMove(v);
03832 continue;
03833 }
03834 }
03835
03836
03837 v->UpdateDeltaXY(v->direction);
03838 if (update_image) v->cur_image = v->GetImage(v->direction);
03839
03840 v->x_pos = gp.x;
03841 v->y_pos = gp.y;
03842
03843
03844 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03845
03846 if (prev == NULL) {
03847
03848 AffectSpeedByZChange(v, old_z);
03849 }
03850
03851 if (update_signals_crossing) {
03852 if (IsFrontEngine(v)) {
03853 if (TrainMovedChangeSignals(gp.new_tile, enterdir)) {
03854
03855
03856
03857
03858
03859
03860
03861
03862 if ((!HasReservedTracks(gp.new_tile, v->u.rail.track) &&
03863 !TryReserveRailTrack(gp.new_tile, FindFirstTrack(v->u.rail.track))) ||
03864 !TryPathReserve(v)) {
03865 MarkTrainAsStuck(v);
03866 }
03867 }
03868 }
03869
03870
03871
03872 if (v->Next() == NULL) {
03873 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03874 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03875 }
03876 }
03877
03878
03879 if (IsFrontEngine(v) && v->tick_counter % _settings_game.pf.path_backoff_interval == 0) CheckNextTrainTile(v);
03880 }
03881 return;
03882
03883 invalid_rail:
03884
03885 if (prev != NULL) error("Disconnecting train");
03886
03887 reverse_train_direction:
03888 v->load_unload_time_rem = 0;
03889 v->cur_speed = 0;
03890 v->subspeed = 0;
03891 ReverseTrainDirection(v);
03892 }
03893
03899 static Vehicle *CollectTrackbitsFromCrashedVehiclesEnum(Vehicle *v, void *data)
03900 {
03901 TrackBits *trackbits = (TrackBits *)data;
03902
03903 if (v->type == VEH_TRAIN && (v->vehstatus & VS_CRASHED) != 0) {
03904 if ((v->u.rail.track & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03905
03906 *trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(v->tile));
03907 } else {
03908 *trackbits |= v->u.rail.track;
03909 }
03910 }
03911
03912 return NULL;
03913 }
03914
03922 static void DeleteLastWagon(Vehicle *v)
03923 {
03924 Vehicle *first = v->First();
03925
03926
03927
03928
03929 Vehicle *u = v;
03930 for (; v->Next() != NULL; v = v->Next()) u = v;
03931 u->SetNext(NULL);
03932
03933 if (first != v) {
03934
03935 TrainConsistChanged(first, false);
03936
03937
03938 if (first->u.rail.track == TRACK_BIT_DEPOT) {
03939 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
03940 }
03941 }
03942
03943
03944 TrackBits trackbits = v->u.rail.track;
03945 TileIndex tile = v->tile;
03946 Owner owner = v->owner;
03947
03948 delete v;
03949 v = NULL;
03950
03951 if ((trackbits & TRACK_BIT_WORMHOLE) == TRACK_BIT_WORMHOLE) {
03952
03953 trackbits |= DiagDirToDiagTrackBits(GetTunnelBridgeDirection(tile));
03954 }
03955
03956 Track track = TrackBitsToTrack(trackbits);
03957 if (HasReservedTracks(tile, trackbits)) {
03958 UnreserveRailTrack(tile, track);
03959
03960
03961 TrackBits remaining_trackbits = TRACK_BIT_NONE;
03962 FindVehicleOnPos(tile, &remaining_trackbits, CollectTrackbitsFromCrashedVehiclesEnum);
03963
03964
03965 assert(TRACK_BEGIN == TRACK_X && TRACK_Y == TRACK_BEGIN + 1);
03966 for (Track t = TRACK_BEGIN; t < TRACK_END; t++) {
03967 if (HasBit(remaining_trackbits, t)) {
03968 TryReserveRailTrack(tile, t);
03969 }
03970 }
03971 }
03972
03973
03974 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03975
03976
03977 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsRailDepotTile(tile)) {
03978 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03979 } else {
03980 SetSignalsOnBothDir(tile, track, owner);
03981 }
03982 }
03983
03984 static void ChangeTrainDirRandomly(Vehicle *v)
03985 {
03986 static const DirDiff delta[] = {
03987 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03988 };
03989
03990 do {
03991
03992 if (!(v->vehstatus & VS_HIDDEN)) {
03993 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03994 BeginVehicleMove(v);
03995 v->UpdateDeltaXY(v->direction);
03996 v->cur_image = v->GetImage(v->direction);
03997
03998
03999
04000 if (v->u.rail.track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
04001 }
04002 } while ((v = v->Next()) != NULL);
04003 }
04004
04005 static void HandleCrashedTrain(Vehicle *v)
04006 {
04007 int state = ++v->u.rail.crash_anim_pos;
04008
04009 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
04010 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
04011 }
04012
04013 uint32 r;
04014 if (state <= 200 && Chance16R(1, 7, r)) {
04015 int index = (r * 10 >> 16);
04016
04017 Vehicle *u = v;
04018 do {
04019 if (--index < 0) {
04020 r = Random();
04021
04022 CreateEffectVehicleRel(u,
04023 GB(r, 8, 3) + 2,
04024 GB(r, 16, 3) + 2,
04025 GB(r, 0, 3) + 5,
04026 EV_EXPLOSION_SMALL);
04027 break;
04028 }
04029 } while ((u = u->Next()) != NULL);
04030 }
04031
04032 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
04033
04034 if (state >= 4440 && !(v->tick_counter & 0x1F)) {
04035 DeleteLastWagon(v);
04036 InvalidateWindow(WC_REPLACE_VEHICLE, (v->group_id << 16) | VEH_TRAIN);
04037 }
04038 }
04039
04040 static void HandleBrokenTrain(Vehicle *v)
04041 {
04042 if (v->breakdown_ctr != 1) {
04043 v->breakdown_ctr = 1;
04044 v->cur_speed = 0;
04045
04046 if (v->breakdowns_since_last_service != 255)
04047 v->breakdowns_since_last_service++;
04048
04049 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04050 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
04051
04052 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
04053 SndPlayVehicleFx((_settings_game.game_creation.landscape != LT_TOYLAND) ?
04054 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
04055 }
04056
04057 if (!(v->vehstatus & VS_HIDDEN)) {
04058 Vehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
04059 if (u != NULL) u->u.effect.animation_state = v->breakdown_delay * 2;
04060 }
04061 }
04062
04063 if (!(v->tick_counter & 3)) {
04064 if (!--v->breakdown_delay) {
04065 v->breakdown_ctr = 0;
04066 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
04067 }
04068 }
04069 }
04070
04072 static const uint16 _breakdown_speeds[16] = {
04073 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
04074 };
04075
04076
04084 static bool TrainApproachingLineEnd(Vehicle *v, bool signal)
04085 {
04086
04087 uint x = v->x_pos & 0xF;
04088 uint y = v->y_pos & 0xF;
04089
04090
04091
04092 switch (v->direction) {
04093 case DIR_N : x = ~x + ~y + 25; break;
04094 case DIR_NW: x = y;
04095 case DIR_NE: x = ~x + 16; break;
04096 case DIR_E : x = ~x + y + 9; break;
04097 case DIR_SE: x = y; break;
04098 case DIR_S : x = x + y - 7; break;
04099 case DIR_W : x = ~y + x + 9; break;
04100 default: break;
04101 }
04102
04103
04104 if (!signal && x + (v->u.rail.cached_veh_length + 1) / 2 >= TILE_SIZE) {
04105
04106 v->cur_speed = 0;
04107 ReverseTrainDirection(v);
04108 return false;
04109 }
04110
04111
04112 v->vehstatus |= VS_TRAIN_SLOWING;
04113 uint16 break_speed = _breakdown_speeds[x & 0xF];
04114 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04115
04116 return true;
04117 }
04118
04119
04125 static bool TrainCanLeaveTile(const Vehicle *v)
04126 {
04127
04128 if (v->u.rail.track == TRACK_BIT_WORMHOLE || v->u.rail.track == TRACK_BIT_DEPOT) return false;
04129
04130 TileIndex tile = v->tile;
04131
04132
04133 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
04134 DiagDirection dir = GetTunnelBridgeDirection(tile);
04135 if (DiagDirToDir(dir) == v->direction) return false;
04136 }
04137
04138
04139 if (IsRailDepotTile(tile)) {
04140 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
04141 if (DiagDirToDir(dir) == v->direction) return false;
04142 }
04143
04144 return true;
04145 }
04146
04147
04155 static TileIndex TrainApproachingCrossingTile(const Vehicle *v)
04156 {
04157 assert(IsFrontEngine(v));
04158 assert(!(v->vehstatus & VS_CRASHED));
04159
04160 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
04161
04162 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04163 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04164
04165
04166 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
04167 !CheckCompatibleRail(v, tile)) {
04168 return INVALID_TILE;
04169 }
04170
04171 return tile;
04172 }
04173
04174
04181 static bool TrainCheckIfLineEnds(Vehicle *v)
04182 {
04183
04184
04185 int t = v->breakdown_ctr;
04186 if (t > 1) {
04187 v->vehstatus |= VS_TRAIN_SLOWING;
04188
04189 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
04190 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
04191 } else {
04192 v->vehstatus &= ~VS_TRAIN_SLOWING;
04193 }
04194
04195 if (!TrainCanLeaveTile(v)) return true;
04196
04197
04198 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
04199
04200 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
04201
04202
04203 TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir));
04204 TrackdirBits reachable_trackdirs = DiagdirReachesTrackdirs(dir);
04205
04206 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts) & reachable_trackdirs;
04207 TrackdirBits red_signals = TrackStatusToRedSignals(ts) & reachable_trackdirs;
04208
04209
04210
04211
04212 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
04213 if (_settings_game.pf.pathfinder_for_trains != VPF_NTP && _settings_game.pf.forbid_90_deg) {
04214 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
04215 }
04216
04217
04218 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
04219 return TrainApproachingLineEnd(v, false);
04220 }
04221
04222
04223 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
04224
04225
04226 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
04227
04228 return true;
04229 }
04230
04231
04232 static void TrainLocoHandler(Vehicle *v, bool mode)
04233 {
04234
04235 if (v->vehstatus & VS_CRASHED) {
04236 if (!mode) HandleCrashedTrain(v);
04237 return;
04238 }
04239
04240 if (v->u.rail.force_proceed != 0) {
04241 v->u.rail.force_proceed--;
04242 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04243 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04244 }
04245
04246
04247 if (v->breakdown_ctr != 0) {
04248 if (v->breakdown_ctr <= 2) {
04249 HandleBrokenTrain(v);
04250 return;
04251 }
04252 if (!v->current_order.IsType(OT_LOADING)) v->breakdown_ctr--;
04253 }
04254
04255 if (HasBit(v->u.rail.flags, VRF_REVERSING) && v->cur_speed == 0) {
04256 ReverseTrainDirection(v);
04257 }
04258
04259
04260 if (v->vehstatus & VS_STOPPED && v->cur_speed == 0) return;
04261
04262 bool valid_order = v->current_order.IsValid() && v->current_order.GetType() != OT_CONDITIONAL;
04263 if (ProcessOrders(v) && CheckReverseTrain(v)) {
04264 v->load_unload_time_rem = 0;
04265 v->cur_speed = 0;
04266 v->subspeed = 0;
04267 ReverseTrainDirection(v);
04268 return;
04269 }
04270
04271 v->HandleLoading(mode);
04272
04273 if (v->current_order.IsType(OT_LOADING)) return;
04274
04275 if (CheckTrainStayInDepot(v)) return;
04276
04277 if (!mode) HandleLocomotiveSmokeCloud(v);
04278
04279
04280 if (!valid_order && v->current_order.IsValid()) {
04281 CheckNextTrainTile(v);
04282 }
04283
04284
04285 if (!mode && HasBit(v->u.rail.flags, VRF_TRAIN_STUCK)) {
04286 ++v->load_unload_time_rem;
04287
04288
04289 bool turn_around = v->load_unload_time_rem % (_settings_game.pf.wait_for_pbs_path * DAY_TICKS) == 0 && _settings_game.pf.wait_for_pbs_path < 255;
04290
04291 if (!turn_around && v->load_unload_time_rem % _settings_game.pf.path_backoff_interval != 0 && v->u.rail.force_proceed == 0) return;
04292 if (!TryPathReserve(v)) {
04293
04294 if (turn_around) ReverseTrainDirection(v);
04295
04296 if (HasBit(v->u.rail.flags, VRF_TRAIN_STUCK) && v->load_unload_time_rem > 2 * _settings_game.pf.wait_for_pbs_path * DAY_TICKS) {
04297
04298 if (_settings_client.gui.lost_train_warn && v->owner == _local_company) {
04299 SetDParam(0, v->index);
04300 AddNewsItem(
04301 STR_TRAIN_IS_STUCK,
04302 NS_ADVICE,
04303 v->index,
04304 0);
04305 }
04306 v->load_unload_time_rem = 0;
04307 }
04308
04309 if (v->u.rail.force_proceed == 0) return;
04310 ClrBit(v->u.rail.flags, VRF_TRAIN_STUCK);
04311 v->load_unload_time_rem = 0;
04312 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04313 }
04314 }
04315
04316 if (v->current_order.IsType(OT_LEAVESTATION)) {
04317 v->current_order.Free();
04318 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04319 return;
04320 }
04321
04322 int j = UpdateTrainSpeed(v);
04323
04324
04325 if (v->cur_speed == 0 && v->u.rail.last_speed == 0 && v->vehstatus & VS_STOPPED) {
04326 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04327 }
04328
04329 int adv_spd = (v->direction & 1) ? 192 : 256;
04330 if (j < adv_spd) {
04331
04332 if (v->cur_speed == 0) SetLastSpeed(v, v->cur_speed);
04333 } else {
04334 TrainCheckIfLineEnds(v);
04335
04336 do {
04337 j -= adv_spd;
04338 TrainController(v, NULL, true);
04339
04340 if (CheckTrainCollision(v)) break;
04341
04342 adv_spd = (v->direction & 1) ? 192 : 256;
04343 } while (j >= adv_spd);
04344 SetLastSpeed(v, v->cur_speed);
04345 }
04346
04347 if (v->progress == 0) v->progress = j;
04348 }
04349
04350
04351
04352 Money Train::GetRunningCost() const
04353 {
04354 Money cost = 0;
04355 const Vehicle *v = this;
04356
04357 do {
04358 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
04359
04360 byte cost_factor = GetVehicleProperty(v, 0x0D, rvi->running_cost);
04361 if (cost_factor == 0) continue;
04362
04363
04364 if (IsMultiheaded(v)) cost_factor /= 2;
04365
04366 cost += cost_factor * GetPriceByIndex(rvi->running_cost_class);
04367 } while ((v = GetNextVehicle(v)) != NULL);
04368
04369 return cost;
04370 }
04371
04372
04373 void Train::Tick()
04374 {
04375 if (_age_cargo_skip_counter == 0) this->cargo.AgeCargo();
04376
04377 this->tick_counter++;
04378
04379 if (IsFrontEngine(this)) {
04380 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
04381 this->current_order_time++;
04382
04383 TrainLocoHandler(this, false);
04384
04385
04386 if (this->type == VEH_TRAIN && IsFrontEngine(this))
04387 TrainLocoHandler(this, true);
04388 } else if (IsFreeWagon(this) && HASBITS(this->vehstatus, VS_CRASHED)) {
04389
04390 if (++this->u.rail.crash_anim_pos >= 4400) delete this;
04391 }
04392 }
04393
04394 static void CheckIfTrainNeedsService(Vehicle *v)
04395 {
04396 static const uint MAX_ACCEPTABLE_DEPOT_DIST = 16;
04397
04398 if (_settings_game.vehicle.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
04399 if (v->IsInDepot()) {
04400 VehicleServiceInDepot(v);
04401 return;
04402 }
04403
04404 TrainFindDepotData tfdd = FindClosestTrainDepot(v, MAX_ACCEPTABLE_DEPOT_DIST);
04405
04406 if (tfdd.best_length == UINT_MAX || tfdd.best_length > MAX_ACCEPTABLE_DEPOT_DIST) {
04407 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
04408
04409
04410
04411 v->current_order.MakeDummy();
04412 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04413 }
04414 return;
04415 }
04416
04417 const Depot *depot = GetDepotByTile(tfdd.tile);
04418
04419 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
04420 v->current_order.GetDestination() != depot->index &&
04421 !Chance16(3, 16)) {
04422 return;
04423 }
04424
04425 v->current_order.MakeGoToDepot(depot->index, ODTFB_SERVICE);
04426 v->dest_tile = tfdd.tile;
04427 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
04428 }
04429
04430 void Train::OnNewDay()
04431 {
04432 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
04433
04434 if (IsFrontEngine(this)) {
04435 CheckVehicleBreakdown(this);
04436 AgeVehicle(this);
04437
04438 CheckIfTrainNeedsService(this);
04439
04440 CheckOrders(this);
04441
04442
04443 if (this->current_order.IsType(OT_GOTO_STATION)) {
04444 TileIndex tile = GetStation(this->current_order.GetDestination())->train_tile;
04445 if (tile != INVALID_TILE) this->dest_tile = tile;
04446 }
04447
04448 if (this->running_ticks != 0) {
04449
04450 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
04451
04452 this->profit_this_year -= cost.GetCost();
04453 this->running_ticks = 0;
04454
04455 SubtractMoneyFromCompanyFract(this->owner, cost);
04456
04457 InvalidateWindow(WC_VEHICLE_DETAILS, this->index);
04458 InvalidateWindowClasses(WC_TRAINS_LIST);
04459 }
04460 } else if (IsTrainEngine(this)) {
04461
04462 AgeVehicle(this);
04463 }
04464 }
04465
04466 void InitializeTrains()
04467 {
04468 _age_cargo_skip_counter = 1;
04469 }