00001
00002
00005 #include "stdafx.h"
00006 #include "openttd.h"
00007 #include "bridge_map.h"
00008 #include "debug.h"
00009 #include "tile_cmd.h"
00010 #include "landscape.h"
00011 #include "gui.h"
00012 #include "station_map.h"
00013 #include "tunnel_map.h"
00014 #include "timetable.h"
00015 #include "articulated_vehicles.h"
00016 #include "command_func.h"
00017 #include "pathfind.h"
00018 #include "npf.h"
00019 #include "station.h"
00020 #include "news.h"
00021 #include "engine.h"
00022 #include "player_func.h"
00023 #include "player_base.h"
00024 #include "depot.h"
00025 #include "waypoint.h"
00026 #include "vehicle_gui.h"
00027 #include "train.h"
00028 #include "bridge.h"
00029 #include "newgrf_callbacks.h"
00030 #include "newgrf_engine.h"
00031 #include "newgrf_sound.h"
00032 #include "newgrf_text.h"
00033 #include "direction_func.h"
00034 #include "yapf/yapf.h"
00035 #include "cargotype.h"
00036 #include "group.h"
00037 #include "table/sprites.h"
00038 #include "tunnelbridge_map.h"
00039 #include "strings_func.h"
00040 #include "functions.h"
00041 #include "window_func.h"
00042 #include "date_func.h"
00043 #include "vehicle_func.h"
00044 #include "sound_func.h"
00045 #include "signal_func.h"
00046 #include "variables.h"
00047 #include "autoreplace_gui.h"
00048 #include "gfx_func.h"
00049 #include "settings_type.h"
00050 #include "network/network.h"
00051
00052 #include "table/strings.h"
00053 #include "table/train_cmd.h"
00054
00055 static bool TrainCheckIfLineEnds(Vehicle *v);
00056 static void TrainController(Vehicle *v, Vehicle *nomove, bool update_image);
00057 static TileIndex TrainApproachingCrossingTile(const Vehicle *v);
00058
00059 static const byte _vehicle_initial_x_fract[4] = {10, 8, 4, 8};
00060 static const byte _vehicle_initial_y_fract[4] = { 8, 4, 8, 10};
00061
00062
00070 static inline DiagDirection TrainExitDir(Direction direction, TrackBits track)
00071 {
00072 static const TrackBits state_dir_table[DIAGDIR_END] = { TRACK_BIT_RIGHT, TRACK_BIT_LOWER, TRACK_BIT_LEFT, TRACK_BIT_UPPER };
00073
00074 DiagDirection diagdir = DirToDiagDir(direction);
00075
00076
00077 if (!HasBit(direction, 0) && track != state_dir_table[diagdir]) {
00078 diagdir = ChangeDiagDir(diagdir, DIAGDIRDIFF_90LEFT);
00079 }
00080
00081 return diagdir;
00082 }
00083
00084
00089 byte FreightWagonMult(CargoID cargo)
00090 {
00091 if (!GetCargo(cargo)->is_freight) return 1;
00092 return _patches.freight_trains;
00093 }
00094
00095
00100 void TrainPowerChanged(Vehicle* v)
00101 {
00102 uint32 total_power = 0;
00103 uint32 max_te = 0;
00104
00105 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
00106
00107 if (IsArticulatedPart(u)) continue;
00108
00109 RailType railtype = GetRailType(u->tile);
00110 bool engine_has_power = HasPowerOnRail(u->u.rail.railtype, railtype);
00111 bool wagon_has_power = HasPowerOnRail(v->u.rail.railtype, railtype);
00112
00113 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00114
00115 if (engine_has_power) {
00116 uint16 power = GetVehicleProperty(u, 0x0B, rvi_u->power);
00117 if (power != 0) {
00118
00119 if (IsMultiheaded(u)) power /= 2;
00120
00121 total_power += power;
00122
00123 max_te += (u->u.rail.cached_veh_weight * 10000 * GetVehicleProperty(u, 0x1F, rvi_u->tractive_effort)) / 256;
00124 }
00125 }
00126
00127 if (HasBit(u->u.rail.flags, VRF_POWEREDWAGON) && (wagon_has_power)) {
00128 total_power += RailVehInfo(u->u.rail.first_engine)->pow_wag_power;
00129 }
00130 }
00131
00132 if (v->u.rail.cached_power != total_power || v->u.rail.cached_max_te != max_te) {
00133
00134 if (total_power == 0) v->vehstatus |= VS_STOPPED;
00135
00136 v->u.rail.cached_power = total_power;
00137 v->u.rail.cached_max_te = max_te;
00138 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
00139 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
00140 }
00141 }
00142
00143
00149 static void TrainCargoChanged(Vehicle* v)
00150 {
00151 uint32 weight = 0;
00152
00153 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00154 uint32 vweight = GetCargo(u->cargo_type)->weight * u->cargo.Count() * FreightWagonMult(u->cargo_type) / 16;
00155
00156
00157 if (!IsArticulatedPart(u)) {
00158
00159 vweight += GetVehicleProperty(u, 0x16, RailVehInfo(u->engine_type)->weight);
00160
00161
00162 if (HasBit(u->u.rail.flags, VRF_POWEREDWAGON))
00163 vweight += RailVehInfo(u->u.rail.first_engine)->pow_wag_weight;
00164 }
00165
00166
00167 weight += vweight;
00168
00169
00170 u->u.rail.cached_veh_weight = vweight;
00171 }
00172
00173
00174 v->u.rail.cached_weight = weight;
00175
00176
00177 TrainPowerChanged(v);
00178 }
00179
00180
00185 static void RailVehicleLengthChanged(const Vehicle *u)
00186 {
00187 extern const GRFFile *_engine_grf[TOTAL_NUM_ENGINES];
00188 if (_engine_grf[u->engine_type] == NULL) return;
00189
00190 uint32 grfid = _engine_grf[u->engine_type]->grfid;
00191 GRFConfig *grfconfig = GetGRFConfig(grfid);
00192 if (!HasBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH)) {
00193 SetBit(grfconfig->grf_bugs, GBUG_VEH_LENGTH);
00194 SetDParamStr(0, grfconfig->name);
00195 SetDParam(1, u->engine_type);
00196 ShowErrorMessage(STR_NEWGRF_BROKEN_VEHICLE_LENGTH, STR_NEWGRF_BROKEN, 0, 0);
00197
00198
00199 char buffer[512];
00200
00201 SetDParamStr(0, grfconfig->name);
00202 GetString(buffer, STR_NEWGRF_BROKEN, lastof(buffer));
00203 DEBUG(grf, 0, "%s", buffer + 3);
00204
00205 SetDParam(1, u->engine_type);
00206 GetString(buffer, STR_NEWGRF_BROKEN_VEHICLE_LENGTH, lastof(buffer));
00207 DEBUG(grf, 0, "%s", buffer + 3);
00208
00209 if (!_networking) _pause_game = -1;
00210 }
00211 }
00212
00214 void CheckTrainsLengths()
00215 {
00216 const Vehicle *v;
00217
00218 FOR_ALL_VEHICLES(v) {
00219 if (v->type == VEH_TRAIN && v->First() == v && !(v->vehstatus & VS_CRASHED)) {
00220 for (const Vehicle *u = v, *w = v->Next(); w != NULL; u = w, w = w->Next()) {
00221 if (u->u.rail.track != TRACK_BIT_DEPOT) {
00222 if ((w->u.rail.track != TRACK_BIT_DEPOT &&
00223 max(abs(u->x_pos - w->x_pos), abs(u->y_pos - w->y_pos)) != u->u.rail.cached_veh_length) ||
00224 (w->u.rail.track == TRACK_BIT_DEPOT && TicksToLeaveDepot(u) <= 0)) {
00225 SetDParam(0, v->index);
00226 SetDParam(1, v->owner);
00227 ShowErrorMessage(INVALID_STRING_ID, STR_BROKEN_VEHICLE_LENGTH, 0, 0);
00228
00229 if (!_networking) _pause_game = -1;
00230 }
00231 }
00232 }
00233 }
00234 }
00235 }
00236
00244 void TrainConsistChanged(Vehicle *v, bool same_length)
00245 {
00246 uint16 max_speed = 0xFFFF;
00247
00248 assert(v->type == VEH_TRAIN);
00249 assert(IsFrontEngine(v) || IsFreeWagon(v));
00250
00251 const RailVehicleInfo *rvi_v = RailVehInfo(v->engine_type);
00252 EngineID first_engine = IsFrontEngine(v) ? v->engine_type : INVALID_ENGINE;
00253 v->u.rail.cached_total_length = 0;
00254 v->u.rail.compatible_railtypes = RAILTYPES_NONE;
00255
00256 bool train_can_tilt = true;
00257
00258 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00259 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00260
00261
00262 assert(u->First() == v);
00263
00264
00265 u->u.rail.first_engine = v == u ? INVALID_ENGINE : first_engine;
00266 u->u.rail.railtype = rvi_u->railtype;
00267
00268
00269 u->u.rail.user_def_data = rvi_u->user_def_data;
00270 }
00271
00272 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00273
00274 u->u.rail.user_def_data = GetVehicleProperty(u, 0x25, u->u.rail.user_def_data);
00275 }
00276
00277 for (Vehicle *u = v; u != NULL; u = u->Next()) {
00278 const RailVehicleInfo *rvi_u = RailVehInfo(u->engine_type);
00279
00280 if (!HasBit(EngInfo(u->engine_type)->misc_flags, EF_RAIL_TILTS)) train_can_tilt = false;
00281
00282 if (IsTrainEngine(u)) first_engine = u->engine_type;
00283
00284
00285 u->u.rail.cached_override = GetWagonOverrideSpriteSet(u->engine_type, u->cargo_type, u->u.rail.first_engine);
00286
00287
00288 u->colormap = PAL_NONE;
00289
00290 if (rvi_u->visual_effect != 0) {
00291 u->u.rail.cached_vis_effect = rvi_u->visual_effect;
00292 } else {
00293 if (IsTrainWagon(u) || IsArticulatedPart(u)) {
00294
00295 u->u.rail.cached_vis_effect = 0x40;
00296 } else if (rvi_u->engclass == 0) {
00297
00298 u->u.rail.cached_vis_effect = 4;
00299 } else {
00300
00301 u->u.rail.cached_vis_effect = 8;
00302 }
00303 }
00304
00305 if (!IsArticulatedPart(u)) {
00306
00307 if (HasBit(EngInfo(u->engine_type)->callbackmask, CBM_TRAIN_WAGON_POWER)) {
00308 uint16 callback = GetVehicleCallback(CBID_TRAIN_WAGON_POWER, 0, 0, u->engine_type, u);
00309
00310 if (callback != CALLBACK_FAILED) u->u.rail.cached_vis_effect = GB(callback, 0, 8);
00311 }
00312
00313 if (rvi_v->pow_wag_power != 0 && rvi_u->railveh_type == RAILVEH_WAGON &&
00314 UsesWagonOverride(u) && !HasBit(u->u.rail.cached_vis_effect, 7)) {
00315
00316 SetBit(u->u.rail.flags, VRF_POWEREDWAGON);
00317 } else {
00318 ClrBit(u->u.rail.flags, VRF_POWEREDWAGON);
00319 }
00320
00321
00322
00323 if (rvi_u->power > 0) {
00324 v->u.rail.compatible_railtypes |= GetRailTypeInfo(u->u.rail.railtype)->powered_railtypes;
00325 }
00326
00327
00328
00329 if (HasBit(u->u.rail.flags, VRF_EL_ENGINE_ALLOWED_NORMAL_RAIL)) {
00330 u->u.rail.railtype = RAILTYPE_RAIL;
00331 u->u.rail.compatible_railtypes |= RAILTYPES_RAIL;
00332 }
00333
00334
00335 if ((rvi_u->railveh_type != RAILVEH_WAGON || _patches.wagon_speed_limits) && !UsesWagonOverride(u)) {
00336 uint16 speed = GetVehicleProperty(u, 0x09, rvi_u->max_speed);
00337 if (speed != 0) max_speed = min(speed, max_speed);
00338 }
00339 }
00340
00341 if (u->cargo_type == rvi_u->cargo_type && u->cargo_subtype == 0) {
00342
00343 u->cargo_cap = GetVehicleProperty(u, 0x14, rvi_u->capacity);
00344 }
00345
00346
00347 uint16 veh_len = CALLBACK_FAILED;
00348 if (HasBit(EngInfo(u->engine_type)->callbackmask, CBM_VEHICLE_LENGTH)) {
00349 veh_len = GetVehicleCallback(CBID_VEHICLE_LENGTH, 0, 0, u->engine_type, u);
00350 }
00351 if (veh_len == CALLBACK_FAILED) veh_len = rvi_u->shorten_factor;
00352 veh_len = 8 - Clamp(veh_len, 0, u->Next() == NULL ? 7 : 5);
00353
00354
00355 if (same_length && veh_len != u->u.rail.cached_veh_length) RailVehicleLengthChanged(u);
00356
00357
00358 if (!same_length) u->u.rail.cached_veh_length = veh_len;
00359
00360 v->u.rail.cached_total_length += u->u.rail.cached_veh_length;
00361 }
00362
00363
00364 v->u.rail.cached_max_speed = max_speed;
00365 v->u.rail.cached_tilt = train_can_tilt;
00366
00367
00368 TrainCargoChanged(v);
00369
00370 if (IsFrontEngine(v)) {
00371 UpdateTrainAcceleration(v);
00372 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
00373 }
00374 }
00375
00376 enum AccelType {
00377 AM_ACCEL,
00378 AM_BRAKE
00379 };
00380
00381 static bool TrainShouldStop(const Vehicle* v, TileIndex tile)
00382 {
00383 const Order* o = &v->current_order;
00384 StationID sid = GetStationIndex(tile);
00385
00386 assert(v->type == VEH_TRAIN);
00387
00388
00389 if (_patches.new_nonstop && o->flags & OFB_NON_STOP && sid == o->dest) {
00390 return false;
00391 }
00392
00393 if (v->last_station_visited == sid) return false;
00394
00395 if (sid != o->dest && (o->flags & OFB_NON_STOP || _patches.new_nonstop)) {
00396 return false;
00397 }
00398
00399 return true;
00400 }
00401
00403 static int GetTrainAcceleration(Vehicle *v, bool mode)
00404 {
00405 static const int absolute_max_speed = 2000;
00406 int max_speed = absolute_max_speed;
00407 int speed = v->cur_speed * 10 / 16;
00408 int curvecount[2] = {0, 0};
00409
00410
00411 int numcurve = 0;
00412 int sum = 0;
00413 int pos = 0;
00414 int lastpos = -1;
00415 for (const Vehicle *u = v; u->Next() != NULL; u = u->Next(), pos++) {
00416 Direction this_dir = u->direction;
00417 Direction next_dir = u->Next()->direction;
00418
00419 DirDiff dirdiff = DirDifference(this_dir, next_dir);
00420 if (dirdiff == DIRDIFF_SAME) continue;
00421
00422 if (dirdiff == DIRDIFF_45LEFT) curvecount[0]++;
00423 if (dirdiff == DIRDIFF_45RIGHT) curvecount[1]++;
00424 if (dirdiff == DIRDIFF_45LEFT || dirdiff == DIRDIFF_45RIGHT) {
00425 if (lastpos != -1) {
00426 numcurve++;
00427 sum += pos - lastpos;
00428 if (pos - lastpos == 1) {
00429 max_speed = 88;
00430 }
00431 }
00432 lastpos = pos;
00433 }
00434
00435
00436 if (dirdiff == DIRDIFF_90LEFT || dirdiff == DIRDIFF_90RIGHT) {
00437 max_speed = 61;
00438 }
00439 }
00440
00441 if ((curvecount[0] != 0 || curvecount[1] != 0) && max_speed > 88) {
00442 int total = curvecount[0] + curvecount[1];
00443
00444 if (curvecount[0] == 1 && curvecount[1] == 1) {
00445 max_speed = absolute_max_speed;
00446 } else if (total > 1) {
00447 if (numcurve > 0) sum /= numcurve;
00448 max_speed = 232 - (13 - Clamp(sum, 1, 12)) * (13 - Clamp(sum, 1, 12));
00449 }
00450 }
00451
00452 if (max_speed != absolute_max_speed) {
00453
00454 const RailtypeInfo *rti = GetRailTypeInfo(v->u.rail.railtype);
00455 max_speed += (max_speed / 2) * rti->curve_speed;
00456
00457 if (v->u.rail.cached_tilt) {
00458
00459 max_speed += max_speed / 5;
00460 }
00461 }
00462
00463 if (IsTileType(v->tile, MP_STATION) && IsFrontEngine(v)) {
00464 if (TrainShouldStop(v, v->tile)) {
00465 int station_length = GetStationByTile(v->tile)->GetPlatformLength(v->tile, DirToDiagDir(v->direction));
00466
00467 int st_max_speed = 120;
00468
00469 int delta_v = v->cur_speed / (station_length + 1);
00470 if (v->max_speed > (v->cur_speed - delta_v)) {
00471 st_max_speed = v->cur_speed - (delta_v / 10);
00472 }
00473
00474 st_max_speed = max(st_max_speed, 25 * station_length);
00475 max_speed = min(max_speed, st_max_speed);
00476 }
00477 }
00478
00479 int mass = v->u.rail.cached_weight;
00480 int power = v->u.rail.cached_power * 746;
00481 max_speed = min(max_speed, v->u.rail.cached_max_speed);
00482
00483 int num = 0;
00484 int incl = 0;
00485 int drag_coeff = 20;
00486 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
00487 num++;
00488 drag_coeff += 3;
00489
00490 if (u->u.rail.track == TRACK_BIT_DEPOT) max_speed = min(max_speed, 61);
00491
00492 if (HasBit(u->u.rail.flags, VRF_GOINGUP)) {
00493 incl += u->u.rail.cached_veh_weight * 60;
00494 } else if (HasBit(u->u.rail.flags, VRF_GOINGDOWN)) {
00495 incl -= u->u.rail.cached_veh_weight * 60;
00496 }
00497 }
00498
00499 v->max_speed = max_speed;
00500
00501 const int area = 120;
00502 const int friction = 35;
00503 int resistance;
00504 if (v->u.rail.railtype != RAILTYPE_MAGLEV) {
00505 resistance = 13 * mass / 10;
00506 resistance += 60 * num;
00507 resistance += friction * mass * speed / 1000;
00508 resistance += (area * drag_coeff * speed * speed) / 10000;
00509 } else {
00510 resistance = (area * (drag_coeff / 2) * speed * speed) / 10000;
00511 }
00512 resistance += incl;
00513 resistance *= 4;
00514
00515
00516
00517 const int max_te = v->u.rail.cached_max_te;
00518 int force;
00519 if (speed > 2) {
00520 switch (v->u.rail.railtype) {
00521 case RAILTYPE_RAIL:
00522 case RAILTYPE_ELECTRIC:
00523 case RAILTYPE_MONO:
00524 force = power / speed;
00525 force *= 22;
00526 force /= 10;
00527 if (mode == AM_ACCEL && force > max_te) force = max_te;
00528 break;
00529
00530 default: NOT_REACHED();
00531 case RAILTYPE_MAGLEV:
00532 force = power / 25;
00533 break;
00534 }
00535 } else {
00536
00537 force = (mode == AM_ACCEL && v->u.rail.railtype != RAILTYPE_MAGLEV) ? min(max_te, power) : power;
00538 force = max(force, (mass * 8) + resistance);
00539 }
00540
00541 if (force <= 0) force = 10000;
00542
00543 if (v->u.rail.railtype != RAILTYPE_MAGLEV) force = min(force, mass * 10 * 200);
00544
00545 if (mode == AM_ACCEL) {
00546 return (force - resistance) / (mass * 4);
00547 } else {
00548 return min((-force - resistance) / (mass * 4), -10000 / (mass * 4));
00549 }
00550 }
00551
00552 void UpdateTrainAcceleration(Vehicle* v)
00553 {
00554 assert(IsFrontEngine(v));
00555
00556 v->max_speed = v->u.rail.cached_max_speed;
00557
00558 uint power = v->u.rail.cached_power;
00559 uint weight = v->u.rail.cached_weight;
00560 assert(weight != 0);
00561 v->acceleration = Clamp(power / weight * 4, 1, 255);
00562 }
00563
00564 int Train::GetImage(Direction direction) const
00565 {
00566 int img = this->spritenum;
00567 int base;
00568
00569 if (HasBit(this->u.rail.flags, VRF_REVERSE_DIRECTION)) direction = ReverseDir(direction);
00570
00571 if (is_custom_sprite(img)) {
00572 base = GetCustomVehicleSprite(this, (Direction)(direction + 4 * IS_CUSTOM_SECONDHEAD_SPRITE(img)));
00573 if (base != 0) return base;
00574 img = _orig_rail_vehicle_info[this->engine_type].image_index;
00575 }
00576
00577 base = _engine_sprite_base[img] + ((direction + _engine_sprite_add[img]) & _engine_sprite_and[img]);
00578
00579 if (this->cargo.Count() >= this->cargo_cap / 2U) base += _wagon_full_adder[img];
00580 return base;
00581 }
00582
00583 void DrawTrainEngine(int x, int y, EngineID engine, SpriteID pal)
00584 {
00585 const RailVehicleInfo *rvi = RailVehInfo(engine);
00586
00587 int img = rvi->image_index;
00588 SpriteID image = 0;
00589
00590 if (is_custom_sprite(img)) {
00591 image = GetCustomVehicleIcon(engine, DIR_W);
00592 if (image == 0) {
00593 img = _orig_rail_vehicle_info[engine].image_index;
00594 } else {
00595 y += _traininfo_vehicle_pitch;
00596 }
00597 }
00598 if (image == 0) {
00599 image = (6 & _engine_sprite_and[img]) + _engine_sprite_base[img];
00600 }
00601
00602 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00603 DrawSprite(image, pal, x - 14, y);
00604 x += 15;
00605 image = 0;
00606 if (is_custom_sprite(img)) {
00607 image = GetCustomVehicleIcon(engine, DIR_E);
00608 if (image == 0) img = _orig_rail_vehicle_info[engine].image_index;
00609 }
00610 if (image == 0) {
00611 image =
00612 ((6 + _engine_sprite_add[img + 1]) & _engine_sprite_and[img + 1]) +
00613 _engine_sprite_base[img + 1];
00614 }
00615 }
00616 DrawSprite(image, pal, x, y);
00617 }
00618
00619 static CommandCost CmdBuildRailWagon(EngineID engine, TileIndex tile, uint32 flags)
00620 {
00621 const RailVehicleInfo *rvi = RailVehInfo(engine);
00622 CommandCost value(EXPENSES_NEW_VEHICLES, (GetEngineProperty(engine, 0x17, rvi->base_cost) * _price.build_railwagon) >> 8);
00623
00624 uint num_vehicles = 1 + CountArticulatedParts(engine, false);
00625
00626 if (!(flags & DC_QUERY_COST)) {
00627
00628 Vehicle **vl = (Vehicle**)alloca(sizeof(*vl) * (num_vehicles + 1));
00629 memset(vl, 0, sizeof(*vl) * (num_vehicles + 1));
00630
00631 if (!Vehicle::AllocateList(vl, num_vehicles))
00632 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00633
00634 if (flags & DC_EXEC) {
00635 Vehicle *v = vl[0];
00636 v->spritenum = rvi->image_index;
00637
00638 Vehicle *u = NULL;
00639
00640 Vehicle *w;
00641 FOR_ALL_VEHICLES(w) {
00642 if (w->type == VEH_TRAIN && w->tile == tile &&
00643 IsFreeWagon(w) && w->engine_type == engine &&
00644 !HASBITS(w->vehstatus, VS_CRASHED)) {
00645 u = GetLastVehicleInChain(w);
00646 break;
00647 }
00648 }
00649
00650 v = new (v) Train();
00651 v->engine_type = engine;
00652
00653 DiagDirection dir = GetRailDepotDirection(tile);
00654
00655 v->direction = DiagDirToDir(dir);
00656 v->tile = tile;
00657
00658 int x = TileX(tile) * TILE_SIZE | _vehicle_initial_x_fract[dir];
00659 int y = TileY(tile) * TILE_SIZE | _vehicle_initial_y_fract[dir];
00660
00661 v->x_pos = x;
00662 v->y_pos = y;
00663 v->z_pos = GetSlopeZ(x, y);
00664 v->owner = _current_player;
00665 v->u.rail.track = TRACK_BIT_DEPOT;
00666 v->vehstatus = VS_HIDDEN | VS_DEFPAL;
00667
00668 v->subtype = 0;
00669 SetTrainWagon(v);
00670
00671 if (u != NULL) {
00672 u->SetNext(v);
00673 } else {
00674 SetFreeWagon(v);
00675 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00676 }
00677
00678 v->cargo_type = rvi->cargo_type;
00679 v->cargo_subtype = 0;
00680 v->cargo_cap = rvi->capacity;
00681 v->value = value.GetCost();
00682
00683
00684 v->u.rail.railtype = rvi->railtype;
00685
00686 v->build_year = _cur_year;
00687 v->cur_image = 0xAC2;
00688 v->random_bits = VehicleRandomBits();
00689
00690 v->group_id = DEFAULT_GROUP;
00691
00692 AddArticulatedParts(vl, VEH_TRAIN);
00693
00694 _new_vehicle_id = v->index;
00695
00696 VehiclePositionChanged(v);
00697 TrainConsistChanged(v->First(), false);
00698 UpdateTrainGroupID(v->First());
00699
00700 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
00701 if (IsLocalPlayer()) {
00702 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00703 }
00704 GetPlayer(_current_player)->num_engines[engine]++;
00705 }
00706 }
00707
00708 return value;
00709 }
00710
00712 static void NormalizeTrainVehInDepot(const Vehicle* u)
00713 {
00714 const Vehicle* v;
00715
00716 FOR_ALL_VEHICLES(v) {
00717 if (v->type == VEH_TRAIN && IsFreeWagon(v) &&
00718 v->tile == u->tile &&
00719 v->u.rail.track == TRACK_BIT_DEPOT) {
00720 if (CmdFailed(DoCommand(0, v->index | (u->index << 16), 1, DC_EXEC,
00721 CMD_MOVE_RAIL_VEHICLE)))
00722 break;
00723 }
00724 }
00725 }
00726
00727 static CommandCost EstimateTrainCost(EngineID engine, const RailVehicleInfo* rvi)
00728 {
00729 return CommandCost(EXPENSES_NEW_VEHICLES, GetEngineProperty(engine, 0x17, rvi->base_cost) * (_price.build_railvehicle >> 3) >> 5);
00730 }
00731
00732 static void AddRearEngineToMultiheadedTrain(Vehicle* v, Vehicle* u, bool building)
00733 {
00734 u = new (u) Train();
00735 u->direction = v->direction;
00736 u->owner = v->owner;
00737 u->tile = v->tile;
00738 u->x_pos = v->x_pos;
00739 u->y_pos = v->y_pos;
00740 u->z_pos = v->z_pos;
00741 u->u.rail.track = TRACK_BIT_DEPOT;
00742 u->vehstatus = v->vehstatus & ~VS_STOPPED;
00743 u->subtype = 0;
00744 SetMultiheaded(u);
00745 u->spritenum = v->spritenum + 1;
00746 u->cargo_type = v->cargo_type;
00747 u->cargo_subtype = v->cargo_subtype;
00748 u->cargo_cap = v->cargo_cap;
00749 u->u.rail.railtype = v->u.rail.railtype;
00750 if (building) v->SetNext(u);
00751 u->engine_type = v->engine_type;
00752 u->build_year = v->build_year;
00753 if (building) v->value >>= 1;
00754 u->value = v->value;
00755 u->cur_image = 0xAC2;
00756 u->random_bits = VehicleRandomBits();
00757 VehiclePositionChanged(u);
00758 }
00759
00766 CommandCost CmdBuildRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
00767 {
00768
00769 if (!IsEngineBuildable(p1, VEH_TRAIN, _current_player)) return_cmd_error(STR_RAIL_VEHICLE_NOT_AVAILABLE);
00770
00771
00772
00773 if (!(flags & DC_QUERY_COST)) {
00774 if (!IsTileDepotType(tile, TRANSPORT_RAIL)) return CMD_ERROR;
00775 if (!IsTileOwner(tile, _current_player)) return CMD_ERROR;
00776 }
00777
00778 const RailVehicleInfo *rvi = RailVehInfo(p1);
00779
00780
00781
00782 if (!HasPowerOnRail(rvi->railtype, GetRailType(tile))) return CMD_ERROR;
00783
00784 if (rvi->railveh_type == RAILVEH_WAGON) return CmdBuildRailWagon(p1, tile, flags);
00785
00786 CommandCost value = EstimateTrainCost(p1, rvi);
00787
00788 uint num_vehicles =
00789 (rvi->railveh_type == RAILVEH_MULTIHEAD ? 2 : 1) +
00790 CountArticulatedParts(p1, false);
00791
00792 if (!(flags & DC_QUERY_COST)) {
00793
00794 Vehicle **vl = (Vehicle**)alloca(sizeof(*vl) * (num_vehicles + 1));
00795 memset(vl, 0, sizeof(*vl) * (num_vehicles + 1));
00796
00797 if (!Vehicle::AllocateList(vl, num_vehicles))
00798 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00799
00800 Vehicle *v = vl[0];
00801
00802 UnitID unit_num = (flags & DC_AUTOREPLACE) ? 0 : GetFreeUnitNumber(VEH_TRAIN);
00803 if (unit_num > _patches.max_trains)
00804 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
00805
00806 if (flags & DC_EXEC) {
00807 DiagDirection dir = GetRailDepotDirection(tile);
00808 int x = TileX(tile) * TILE_SIZE + _vehicle_initial_x_fract[dir];
00809 int y = TileY(tile) * TILE_SIZE + _vehicle_initial_y_fract[dir];
00810
00811 v = new (v) Train();
00812 v->unitnumber = unit_num;
00813 v->direction = DiagDirToDir(dir);
00814 v->tile = tile;
00815 v->owner = _current_player;
00816 v->x_pos = x;
00817 v->y_pos = y;
00818 v->z_pos = GetSlopeZ(x, y);
00819 v->running_ticks = 0;
00820 v->u.rail.track = TRACK_BIT_DEPOT;
00821 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00822 v->spritenum = rvi->image_index;
00823 v->cargo_type = rvi->cargo_type;
00824 v->cargo_subtype = 0;
00825 v->cargo_cap = rvi->capacity;
00826 v->max_speed = rvi->max_speed;
00827 v->value = value.GetCost();
00828 v->last_station_visited = INVALID_STATION;
00829 v->dest_tile = 0;
00830
00831 v->engine_type = p1;
00832
00833 const Engine *e = GetEngine(p1);
00834 v->reliability = e->reliability;
00835 v->reliability_spd_dec = e->reliability_spd_dec;
00836 v->max_age = e->lifelength * 366;
00837
00838 v->name = NULL;
00839 v->u.rail.railtype = rvi->railtype;
00840 _new_vehicle_id = v->index;
00841
00842 v->service_interval = _patches.servint_trains;
00843 v->date_of_last_service = _date;
00844 v->build_year = _cur_year;
00845 v->cur_image = 0xAC2;
00846 v->random_bits = VehicleRandomBits();
00847
00848 v->vehicle_flags = 0;
00849 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00850
00851 v->group_id = DEFAULT_GROUP;
00852
00853 v->subtype = 0;
00854 SetFrontEngine(v);
00855 SetTrainEngine(v);
00856
00857 VehiclePositionChanged(v);
00858
00859 if (rvi->railveh_type == RAILVEH_MULTIHEAD) {
00860 SetMultiheaded(v);
00861 AddRearEngineToMultiheadedTrain(vl[0], vl[1], true);
00862
00863
00864
00865
00866 vl[0]->u.rail.other_multiheaded_part = vl[1];
00867 vl[1]->u.rail.other_multiheaded_part = vl[0];
00868 } else {
00869 AddArticulatedParts(vl, VEH_TRAIN);
00870 }
00871
00872 TrainConsistChanged(v, false);
00873 UpdateTrainGroupID(v);
00874
00875 if (!HasBit(p2, 1) && !(flags & DC_AUTOREPLACE)) {
00876 NormalizeTrainVehInDepot(v);
00877 }
00878
00879 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00880 RebuildVehicleLists();
00881 InvalidateWindow(WC_COMPANY, v->owner);
00882 if (IsLocalPlayer())
00883 InvalidateAutoreplaceWindow(v->engine_type, v->group_id);
00884
00885 GetPlayer(_current_player)->num_engines[p1]++;
00886 }
00887 }
00888
00889 return value;
00890 }
00891
00892
00893
00894
00895 int CheckTrainInDepot(const Vehicle *v, bool needs_to_be_stopped)
00896 {
00897 TileIndex tile = v->tile;
00898
00899
00900 if (!IsTileDepotType(tile, TRANSPORT_RAIL) || v->cur_speed != 0) return -1;
00901
00902 int count = 0;
00903 for (; v != NULL; v = v->Next()) {
00904
00905
00906
00907
00908
00909 if (!IsArticulatedPart(v) && !IsRearDualheaded(v)) count++;
00910 if (v->u.rail.track != TRACK_BIT_DEPOT || v->tile != tile ||
00911 (IsFrontEngine(v) && needs_to_be_stopped && !(v->vehstatus & VS_STOPPED))) {
00912 return -1;
00913 }
00914 }
00915
00916 return count;
00917 }
00918
00919
00920 int CheckTrainStoppedInDepot(const Vehicle *v)
00921 {
00922 return CheckTrainInDepot(v, true);
00923 }
00924
00925
00926 inline bool CheckTrainIsInsideDepot(const Vehicle *v)
00927 {
00928 return CheckTrainInDepot(v, false) > 0;
00929 }
00930
00937 static Vehicle *UnlinkWagon(Vehicle *v, Vehicle *first)
00938 {
00939
00940 if (v == first) {
00941 v = GetNextVehicle(v);
00942 if (v == NULL) return NULL;
00943
00944 if (IsTrainWagon(v)) SetFreeWagon(v);
00945
00946 return v;
00947 }
00948
00949 Vehicle *u;
00950 for (u = first; GetNextVehicle(u) != v; u = GetNextVehicle(u)) {}
00951 GetLastEnginePart(u)->SetNext(GetNextVehicle(v));
00952 return first;
00953 }
00954
00955 static Vehicle *FindGoodVehiclePos(const Vehicle *src)
00956 {
00957 Vehicle *dst;
00958 EngineID eng = src->engine_type;
00959 TileIndex tile = src->tile;
00960
00961 FOR_ALL_VEHICLES(dst) {
00962 if (dst->type == VEH_TRAIN && IsFreeWagon(dst) && dst->tile == tile && !HASBITS(dst->vehstatus, VS_CRASHED)) {
00963
00964 Vehicle *v = dst;
00965
00966 while (v->engine_type == eng) {
00967 v = v->Next();
00968 if (v == NULL) return dst;
00969 }
00970 }
00971 }
00972
00973 return NULL;
00974 }
00975
00976
00977
00978
00979
00980 static void AddWagonToConsist(Vehicle *v, Vehicle *dest)
00981 {
00982 UnlinkWagon(v, v->First());
00983 if (dest == NULL) return;
00984
00985 Vehicle *next = dest->Next();
00986 v->SetNext(NULL);
00987 dest->SetNext(v);
00988 v->SetNext(next);
00989 ClearFreeWagon(v);
00990 ClearFrontEngine(v);
00991 }
00992
00993
00994
00995
00996
00997 static void NormaliseTrainConsist(Vehicle *v)
00998 {
00999 if (IsFreeWagon(v)) return;
01000
01001 assert(IsFrontEngine(v));
01002
01003 for (; v != NULL; v = GetNextVehicle(v)) {
01004 if (!IsMultiheaded(v) || !IsTrainEngine(v)) continue;
01005
01006
01007 Vehicle *u;
01008 for (u = v; u->Next() != NULL && !IsTrainEngine(u->Next()); u = u->Next()) {}
01009
01010 if (u == v->u.rail.other_multiheaded_part) continue;
01011 AddWagonToConsist(v->u.rail.other_multiheaded_part, u);
01012 }
01013 }
01014
01023 CommandCost CmdMoveRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
01024 {
01025 VehicleID s = GB(p1, 0, 16);
01026 VehicleID d = GB(p1, 16, 16);
01027
01028 if (!IsValidVehicleID(s)) return CMD_ERROR;
01029
01030 Vehicle *src = GetVehicle(s);
01031
01032 if (src->type != VEH_TRAIN || !CheckOwnership(src->owner)) return CMD_ERROR;
01033
01034
01035 if (HASBITS(src->vehstatus, VS_CRASHED)) return CMD_ERROR;
01036
01037
01038 Vehicle *dst;
01039 if (d == INVALID_VEHICLE) {
01040 dst = IsTrainEngine(src) ? NULL : FindGoodVehiclePos(src);
01041 } else {
01042 if (!IsValidVehicleID(d)) return CMD_ERROR;
01043 dst = GetVehicle(d);
01044 if (dst->type != VEH_TRAIN || !CheckOwnership(dst->owner)) return CMD_ERROR;
01045
01046
01047 if (HASBITS(dst->vehstatus, VS_CRASHED)) return CMD_ERROR;
01048 }
01049
01050
01051 while (IsArticulatedPart(src)) src = src->Previous();
01052 if (dst != NULL) {
01053 while (IsArticulatedPart(dst)) dst = dst->Previous();
01054 }
01055
01056
01057 if (src == dst) return CommandCost();
01058
01059
01060 Vehicle *src_head = src->First();
01061 Vehicle *dst_head;
01062 if (dst != NULL) {
01063 dst_head = dst->First();
01064 if (dst_head->tile != src_head->tile) return CMD_ERROR;
01065
01066 dst = GetLastEnginePart(dst);
01067 } else {
01068 dst_head = NULL;
01069 }
01070
01071 if (IsRearDualheaded(src)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01072
01073
01074 if (HasBit(p2, 0) && src_head == dst_head) return CommandCost();
01075
01076 {
01077 int max_len = _patches.mammoth_trains ? 100 : 10;
01078
01079
01080 int src_len = CheckTrainStoppedInDepot(src_head);
01081 if (src_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01082
01083
01084 if (src_head != dst_head) {
01085 int dst_len = 0;
01086
01087 if (dst_head != NULL) {
01088
01089 dst_len = CheckTrainStoppedInDepot(dst_head);
01090 if (dst_len < 0) return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01091 }
01092
01093
01094
01095 if (HasBit(p2, 0)) {
01096 const Vehicle *u;
01097 for (u = src_head; u != src && u != NULL; u = GetNextVehicle(u))
01098 src_len--;
01099 } else {
01100
01101 src_len = 1;
01102 }
01103
01104 if (src_len + dst_len > max_len) {
01105
01106 if (dst_head != NULL && IsFrontEngine(dst_head)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01107
01108 if (dst_head == NULL && IsTrainEngine(src)) return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01109 }
01110 } else {
01111
01112 if (src_len > max_len && src == src_head && IsTrainEngine(GetNextVehicle(src_head)))
01113 return_cmd_error(STR_8819_TRAIN_TOO_LONG);
01114 }
01115 }
01116
01117
01118 if (dst == NULL && !IsFrontEngine(src) && IsTrainEngine(src)) {
01119 UnitID unit_num = GetFreeUnitNumber(VEH_TRAIN);
01120 if (unit_num > _patches.max_trains)
01121 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01122
01123 if (flags & DC_EXEC) src->unitnumber = unit_num;
01124 }
01125
01126
01127 if (!HasBit(p2, 0) && (IsFreeWagon(src) || IsFrontEngine(src)) && (flags & DC_AUTOREPLACE) == 0) {
01128 Vehicle *second = GetNextUnit(src);
01129 if (second != NULL && IsTrainEngine(second) && GetFreeUnitNumber(VEH_TRAIN) > _patches.max_trains) {
01130 return_cmd_error(STR_00E1_TOO_MANY_VEHICLES_IN_GAME);
01131 }
01132 }
01133
01134
01135
01136
01137
01138
01139
01140
01141 bool src_in_dst = false;
01142 for (Vehicle *v = dst_head; !src_in_dst && v != NULL; v = v->Next()) src_in_dst = v == src;
01143
01144
01145
01146
01147
01148
01149
01150
01151
01152 if (dst_head != NULL && !src_in_dst) {
01153
01154
01155
01156
01157
01158
01159
01160
01161
01162 Vehicle *dst_tail = dst_head;
01163 while (dst_tail->Next() != NULL) dst_tail = dst_tail->Next();
01164
01165 Vehicle *orig_tail = dst_tail;
01166 Vehicle *next_to_attach = src;
01167 Vehicle *src_previous = src->Previous();
01168
01169 while (next_to_attach != NULL) {
01170
01171 EngineID first_engine = next_to_attach->u.rail.first_engine;
01172 next_to_attach->u.rail.first_engine = INVALID_ENGINE;
01173
01174 uint16 callback = GetVehicleCallbackParent(CBID_TRAIN_ALLOW_WAGON_ATTACH, 0, 0, dst_head->engine_type, next_to_attach, dst_head);
01175
01176
01177 next_to_attach->u.rail.first_engine = first_engine;
01178
01179 if (callback != CALLBACK_FAILED) {
01180 StringID error = STR_NULL;
01181
01182 if (callback == 0xFD) error = STR_INCOMPATIBLE_RAIL_TYPES;
01183 if (callback < 0xFD) error = GetGRFStringID(GetEngineGRFID(dst_head->engine_type), 0xD000 + callback);
01184
01185 if (error != STR_NULL) {
01186
01187
01188
01189
01190
01191
01192
01193
01194
01195 dst_tail->SetNext(next_to_attach);
01196 orig_tail->SetNext(NULL);
01197 if (src_previous != NULL) src_previous->SetNext(src);
01198
01199 return_cmd_error(error);
01200 }
01201 }
01202
01203
01204 if (!HasBit(p2, 0)) break;
01205
01206
01207
01208
01209
01210
01211
01212 Vehicle *to_add = next_to_attach;
01213 next_to_attach = next_to_attach->Next();
01214
01215 to_add->SetNext(NULL);
01216 dst_tail->SetNext(to_add);
01217 dst_tail = dst_tail->Next();
01218 }
01219
01220
01221
01222
01223
01224
01225
01226
01227 orig_tail->SetNext(NULL);
01228 if (src_previous != NULL) src_previous->SetNext(src);
01229 }
01230
01231
01232 if (flags & DC_EXEC) {
01233
01234
01235 if (IsFrontEngine(src) && !IsDefaultGroupID(src->group_id)) {
01236 Vehicle *v = GetNextVehicle(src);
01237
01238 if (v != NULL && IsTrainEngine(v)) {
01239 v->group_id = src->group_id;
01240 src->group_id = DEFAULT_GROUP;
01241 }
01242 }
01243
01244 if (HasBit(p2, 0)) {
01245
01246 if (src != src_head) {
01247 Vehicle *v = src_head;
01248 while (GetNextVehicle(v) != src) v = GetNextVehicle(v);
01249 GetLastEnginePart(v)->SetNext(NULL);
01250 } else {
01251 InvalidateWindowData(WC_VEHICLE_DEPOT, src_head->tile);
01252 src_head = NULL;
01253 }
01254 } else {
01255
01256 if (src_head == dst_head) dst_head = NULL;
01257
01258 src_head = UnlinkWagon(src, src_head);
01259 GetLastEnginePart(src)->SetNext(NULL);
01260 }
01261
01262 if (dst == NULL) {
01263
01264 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01265
01266
01267 if (IsTrainEngine(src)) {
01268 if (!IsFrontEngine(src)) {
01269
01270 SetFrontEngine(src);
01271 assert(src->orders == NULL);
01272 src->num_orders = 0;
01273
01274
01275 if (!IsDefaultGroupID(src->group_id) && IsValidGroupID(src->group_id)) {
01276 GetGroup(src->group_id)->num_engines[src->engine_type]--;
01277 }
01278
01279
01280 src->group_id = DEFAULT_GROUP;
01281 }
01282 } else {
01283 SetFreeWagon(src);
01284 }
01285 dst_head = src;
01286 } else {
01287 if (IsFrontEngine(src)) {
01288
01289 DeleteWindowById(WC_VEHICLE_VIEW, src->index);
01290 DeleteVehicleOrders(src);
01291 RemoveVehicleFromGroup(src);
01292 }
01293
01294 if (IsFrontEngine(src) || IsFreeWagon(src)) {
01295 InvalidateWindowData(WC_VEHICLE_DEPOT, src->tile);
01296 ClearFrontEngine(src);
01297 ClearFreeWagon(src);
01298 src->unitnumber = 0;
01299 }
01300
01301
01302 {
01303 Vehicle *v;
01304
01305 for (v = src; GetNextVehicle(v) != NULL; v = GetNextVehicle(v)) {}
01306 GetLastEnginePart(v)->SetNext(dst->Next());
01307 }
01308 dst->SetNext(src);
01309 }
01310
01311 if (src->u.rail.other_multiheaded_part != NULL) {
01312 if (src->u.rail.other_multiheaded_part == src_head) {
01313 src_head = src_head->Next();
01314 }
01315 AddWagonToConsist(src->u.rail.other_multiheaded_part, src);
01316 }
01317
01318
01319
01320
01321 if (src_head != NULL && !IsFrontEngine(src_head) && IsTrainEngine(src_head)) {
01322
01323
01324 const GroupID tmp_g = src_head->group_id;
01325 CmdMoveRailVehicle(0, flags, src_head->index | (INVALID_VEHICLE << 16), 1);
01326 SetTrainGroupID(src_head, tmp_g);
01327 src_head = NULL;
01328 }
01329
01330 if (src_head != NULL) {
01331 NormaliseTrainConsist(src_head);
01332 TrainConsistChanged(src_head, false);
01333 UpdateTrainGroupID(src_head);
01334 if (IsFrontEngine(src_head)) {
01335
01336 InvalidateWindow(WC_VEHICLE_REFIT, src_head->index);
01337 InvalidateWindowWidget(WC_VEHICLE_VIEW, src_head->index, VVW_WIDGET_REFIT_VEH);
01338 }
01339
01340 InvalidateWindow(WC_VEHICLE_DEPOT, src_head->tile);
01341 }
01342
01343 if (dst_head != NULL) {
01344 NormaliseTrainConsist(dst_head);
01345 TrainConsistChanged(dst_head, false);
01346 UpdateTrainGroupID(dst_head);
01347 if (IsFrontEngine(dst_head)) {
01348
01349 InvalidateWindowWidget(WC_VEHICLE_VIEW, dst_head->index, VVW_WIDGET_REFIT_VEH);
01350 InvalidateWindow(WC_VEHICLE_REFIT, dst_head->index);
01351 }
01352
01353 InvalidateWindow(WC_VEHICLE_DEPOT, dst_head->tile);
01354 }
01355
01356 RebuildVehicleLists();
01357 }
01358
01359 return CommandCost();
01360 }
01361
01368 CommandCost CmdStartStopTrain(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
01369 {
01370 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01371
01372 Vehicle *v = GetVehicle(p1);
01373
01374 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01375
01376
01377
01378 uint16 callback = GetVehicleCallback(CBID_VEHICLE_START_STOP_CHECK, 0, 0, v->engine_type, v);
01379 if (callback != CALLBACK_FAILED && GB(callback, 0, 8) != 0xFF) {
01380 StringID error = GetGRFStringID(GetEngineGRFID(v->engine_type), 0xD000 + callback);
01381 return_cmd_error(error);
01382 }
01383
01384 if (v->vehstatus & VS_STOPPED && v->u.rail.cached_power == 0) return_cmd_error(STR_TRAIN_START_NO_CATENARY);
01385
01386 if (flags & DC_EXEC) {
01387 if (v->vehstatus & VS_STOPPED && v->u.rail.track == TRACK_BIT_DEPOT) {
01388 DeleteVehicleNews(p1, STR_8814_TRAIN_IS_WAITING_IN_DEPOT);
01389 }
01390
01391 v->vehstatus ^= VS_STOPPED;
01392 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01393 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
01394 }
01395 return CommandCost();
01396 }
01397
01409 CommandCost CmdSellRailWagon(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
01410 {
01411
01412 Window *w = NULL;
01413
01414 if (!IsValidVehicleID(p1) || p2 > 2) return CMD_ERROR;
01415
01416 Vehicle *v = GetVehicle(p1);
01417
01418 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01419
01420 if (HASBITS(v->vehstatus, VS_CRASHED)) return_cmd_error(STR_CAN_T_SELL_DESTROYED_VEHICLE);
01421
01422 while (IsArticulatedPart(v)) v = v->Previous();
01423 Vehicle *first = v->First();
01424
01425
01426 if (CheckTrainStoppedInDepot(first) < 0) {
01427 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01428 }
01429
01430 if (IsRearDualheaded(v)) return_cmd_error(STR_REAR_ENGINE_FOLLOW_FRONT_ERROR);
01431
01432 if (flags & DC_EXEC) {
01433 if (v == first && IsFrontEngine(first)) {
01434 w = FindWindowById(WC_VEHICLE_VIEW, first->index);
01435 if (w != NULL) DeleteWindow(w);
01436 }
01437 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
01438 RebuildVehicleLists();
01439 }
01440
01441 CommandCost cost(EXPENSES_NEW_VEHICLES);
01442 switch (p2) {
01443 case 0: case 2: {
01444 bool switch_engine = false;
01445 byte ori_subtype = v->subtype;
01446
01447
01448
01449 Vehicle *rear = (IsMultiheaded(v) &&
01450 IsTrainEngine(v)) ? v->u.rail.other_multiheaded_part : NULL;
01451
01452 if (rear != NULL) {
01453 cost.AddCost(-rear->value);
01454 if (flags & DC_EXEC) {
01455 UnlinkWagon(rear, first);
01456 DeleteDepotHighlightOfVehicle(rear);
01457 delete rear;
01458 }
01459 }
01460
01461
01462
01463 if ((flags & DC_EXEC) && v == first) {
01464 Vehicle *new_f = GetNextVehicle(first);
01465
01466
01467
01468
01469 if (new_f != NULL && IsTrainEngine(new_f)) {
01470 switch_engine = true;
01471
01472 new_f->unitnumber = first->unitnumber;
01473 new_f->current_order = first->current_order;
01474 new_f->cur_order_index = first->cur_order_index;
01475 new_f->orders = first->orders;
01476 new_f->num_orders = first->num_orders;
01477 new_f->group_id = first->group_id;
01478
01479 if (first->prev_shared != NULL) {
01480 first->prev_shared->next_shared = new_f;
01481 new_f->prev_shared = first->prev_shared;
01482 }
01483
01484 if (first->next_shared != NULL) {
01485 first->next_shared->prev_shared = new_f;
01486 new_f->next_shared = first->next_shared;
01487 }
01488
01489
01490
01491
01492
01493
01494 first->orders = NULL;
01495 first->prev_shared = NULL;
01496 first->next_shared = NULL;
01497 first->group_id = DEFAULT_GROUP;
01498
01499
01500 if (IsLocalPlayer() && w != NULL) ShowVehicleViewWindow(new_f);
01501 }
01502 }
01503
01504
01505 cost.AddCost(-v->value);
01506 if (flags & DC_EXEC) {
01507 first = UnlinkWagon(v, first);
01508 DeleteDepotHighlightOfVehicle(v);
01509 delete v;
01510
01511
01512
01513 if (switch_engine) SetFrontEngine(first);
01514
01515
01516 if (first != NULL) {
01517 NormaliseTrainConsist(first);
01518 TrainConsistChanged(first, false);
01519 UpdateTrainGroupID(first);
01520 if (IsFrontEngine(first)) InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01521 }
01522
01523
01524
01525
01526
01527
01528 if (p2 == 2 && HasBit(ori_subtype, TS_FRONT)) {
01529 Vehicle *tmp;
01530 for (v = first; v != NULL; v = tmp) {
01531 tmp = GetNextVehicle(v);
01532 DoCommand(v->tile, v->index | INVALID_VEHICLE << 16, 0, DC_EXEC, CMD_MOVE_RAIL_VEHICLE);
01533 }
01534 }
01535 }
01536 } break;
01537 case 1: {
01538
01539
01540
01541 Vehicle *tmp;
01542 for (; v != NULL; v = tmp) {
01543 tmp = GetNextVehicle(v);
01544
01545 if (IsMultiheaded(v)) {
01546 if (IsTrainEngine(v)) {
01547
01548 Vehicle *rear = v->u.rail.other_multiheaded_part;
01549
01550 if (rear != NULL) {
01551 cost.AddCost(-rear->value);
01552
01553
01554
01555
01556
01557
01558
01559 if (tmp == rear) tmp = GetNextVehicle(tmp);
01560
01561 if (flags & DC_EXEC) {
01562 first = UnlinkWagon(rear, first);
01563 DeleteDepotHighlightOfVehicle(rear);
01564 delete rear;
01565 }
01566 }
01567 } else if (v->u.rail.other_multiheaded_part != NULL) {
01568
01569 continue;
01570 }
01571 }
01572
01573 cost.AddCost(-v->value);
01574 if (flags & DC_EXEC) {
01575 first = UnlinkWagon(v, first);
01576 DeleteDepotHighlightOfVehicle(v);
01577 delete v;
01578 }
01579 }
01580
01581
01582 if (flags & DC_EXEC && first != NULL) {
01583 NormaliseTrainConsist(first);
01584 TrainConsistChanged(first, false);
01585 UpdateTrainGroupID(first);
01586 InvalidateWindow(WC_VEHICLE_REFIT, first->index);
01587 }
01588 } break;
01589 }
01590 return cost;
01591 }
01592
01593 void Train::UpdateDeltaXY(Direction direction)
01594 {
01595 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
01596 static const uint32 _delta_xy_table[8] = {
01597 MKIT(3, 3, -1, -1),
01598 MKIT(3, 7, -1, -3),
01599 MKIT(3, 3, -1, -1),
01600 MKIT(7, 3, -3, -1),
01601 MKIT(3, 3, -1, -1),
01602 MKIT(3, 7, -1, -3),
01603 MKIT(3, 3, -1, -1),
01604 MKIT(7, 3, -3, -1),
01605 };
01606 #undef MKIT
01607
01608 uint32 x = _delta_xy_table[direction];
01609 this->x_offs = GB(x, 0, 8);
01610 this->y_offs = GB(x, 8, 8);
01611 this->sprite_width = GB(x, 16, 8);
01612 this->sprite_height = GB(x, 24, 8);
01613 this->z_height = 6;
01614 }
01615
01616 static void UpdateVarsAfterSwap(Vehicle *v)
01617 {
01618 v->UpdateDeltaXY(v->direction);
01619 v->cur_image = v->GetImage(v->direction);
01620 BeginVehicleMove(v);
01621 VehiclePositionChanged(v);
01622 EndVehicleMove(v);
01623 }
01624
01625 static inline void SetLastSpeed(Vehicle* v, int spd)
01626 {
01627 int old = v->u.rail.last_speed;
01628 if (spd != old) {
01629 v->u.rail.last_speed = spd;
01630 if (_patches.vehicle_speed || (old == 0) != (spd == 0))
01631 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
01632 }
01633 }
01634
01635 static void SwapTrainFlags(byte *swap_flag1, byte *swap_flag2)
01636 {
01637 byte flag1 = *swap_flag1;
01638 byte flag2 = *swap_flag2;
01639
01640
01641 ClrBit(*swap_flag1, VRF_GOINGUP);
01642 ClrBit(*swap_flag1, VRF_GOINGDOWN);
01643 ClrBit(*swap_flag2, VRF_GOINGUP);
01644 ClrBit(*swap_flag2, VRF_GOINGDOWN);
01645
01646
01647 if (HasBit(flag1, VRF_GOINGUP)) {
01648 SetBit(*swap_flag2, VRF_GOINGDOWN);
01649 } else if (HasBit(flag1, VRF_GOINGDOWN)) {
01650 SetBit(*swap_flag2, VRF_GOINGUP);
01651 }
01652 if (HasBit(flag2, VRF_GOINGUP)) {
01653 SetBit(*swap_flag1, VRF_GOINGDOWN);
01654 } else if (HasBit(flag2, VRF_GOINGDOWN)) {
01655 SetBit(*swap_flag1, VRF_GOINGUP);
01656 }
01657 }
01658
01659 static void ReverseTrainSwapVeh(Vehicle *v, int l, int r)
01660 {
01661 Vehicle *a, *b;
01662
01663
01664 for (a = v; l != 0; l--) a = a->Next();
01665 for (b = v; r != 0; r--) b = b->Next();
01666
01667 if (a != b) {
01668
01669 {
01670 uint16 tmp = (a->vehstatus & ~VS_HIDDEN) | (b->vehstatus&VS_HIDDEN);
01671 b->vehstatus = (b->vehstatus & ~VS_HIDDEN) | (a->vehstatus&VS_HIDDEN);
01672 a->vehstatus = tmp;
01673 }
01674
01675 Swap(a->u.rail.track, b->u.rail.track);
01676 Swap(a->direction, b->direction);
01677
01678
01679 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01680 if (b->u.rail.track != TRACK_BIT_DEPOT) b->direction = ReverseDir(b->direction);
01681
01682 Swap(a->x_pos, b->x_pos);
01683 Swap(a->y_pos, b->y_pos);
01684 Swap(a->tile, b->tile);
01685 Swap(a->z_pos, b->z_pos);
01686
01687 SwapTrainFlags(&a->u.rail.flags, &b->u.rail.flags);
01688
01689
01690 UpdateVarsAfterSwap(a);
01691 UpdateVarsAfterSwap(b);
01692
01693
01694 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01695 if (b->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(b, b->tile, b->x_pos, b->y_pos);
01696 } else {
01697 if (a->u.rail.track != TRACK_BIT_DEPOT) a->direction = ReverseDir(a->direction);
01698 UpdateVarsAfterSwap(a);
01699
01700 if (a->u.rail.track != TRACK_BIT_WORMHOLE) VehicleEnterTile(a, a->tile, a->x_pos, a->y_pos);
01701 }
01702
01703
01704 TrainPowerChanged(v);
01705 }
01706
01707
01713 static void *TrainOnTileEnum(Vehicle *v, void *)
01714 {
01715 return (v->type == VEH_TRAIN) ? v : NULL;
01716 }
01717
01718
01725 static void *TrainApproachingCrossingEnum(Vehicle *v, void *data)
01726 {
01727
01728 if (v->type != VEH_TRAIN || !IsFrontEngine(v) || v->vehstatus & VS_CRASHED) return NULL;
01729
01730 TileIndex tile = *(TileIndex*)data;
01731
01732 if (TrainApproachingCrossingTile(v) != tile) return NULL;
01733
01734 return v;
01735 }
01736
01737
01744 static bool TrainApproachingCrossing(TileIndex tile)
01745 {
01746 assert(IsLevelCrossingTile(tile));
01747
01748 DiagDirection dir = AxisToDiagDir(GetCrossingRailAxis(tile));
01749 TileIndex tile_from = tile + TileOffsByDiagDir(dir);
01750
01751 if (HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum)) return true;
01752
01753 dir = ReverseDiagDir(dir);
01754 tile_from = tile + TileOffsByDiagDir(dir);
01755
01756 return HasVehicleOnPos(tile_from, &tile, &TrainApproachingCrossingEnum);
01757 }
01758
01759
01766 void UpdateLevelCrossing(TileIndex tile, bool sound)
01767 {
01768 assert(IsLevelCrossingTile(tile));
01769
01770
01771 bool new_state = HasVehicleOnPos(tile, NULL, &TrainOnTileEnum) || TrainApproachingCrossing(tile);
01772
01773 if (new_state != IsCrossingBarred(tile)) {
01774 if (new_state && sound) {
01775 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01776 }
01777 SetCrossingBarred(tile, new_state);
01778 MarkTileDirtyByTile(tile);
01779 }
01780 }
01781
01782
01788 static inline void MaybeBarCrossingWithSound(TileIndex tile)
01789 {
01790 if (!IsCrossingBarred(tile)) {
01791 BarCrossing(tile);
01792 SndPlayTileFx(SND_0E_LEVEL_CROSSING, tile);
01793 MarkTileDirtyByTile(tile);
01794 }
01795 }
01796
01797
01803 static void AdvanceWagonsBeforeSwap(Vehicle *v)
01804 {
01805 Vehicle *base = v;
01806 Vehicle *first = base;
01807 Vehicle *last = GetLastVehicleInChain(v);
01808 uint length = CountVehiclesInChain(v);
01809
01810 while (length > 2) {
01811 last = last->Previous();
01812 first = first->Next();
01813
01814 int differential = base->u.rail.cached_veh_length - last->u.rail.cached_veh_length;
01815
01816
01817
01818 for (int i = 0; i < differential; i++) TrainController(first, last->Next(), false);
01819
01820 base = first;
01821 length -= 2;
01822 }
01823 }
01824
01825
01831 static void AdvanceWagonsAfterSwap(Vehicle *v)
01832 {
01833
01834 Vehicle *dep = v;
01835 while (dep->Next() != NULL && (dep->u.rail.track == TRACK_BIT_DEPOT || dep->Next()->u.rail.track != TRACK_BIT_DEPOT)) {
01836 dep = dep->Next();
01837 }
01838
01839 Vehicle *leave = dep->Next();
01840
01841 if (leave != NULL) {
01842
01843 int d = TicksToLeaveDepot(dep);
01844
01845 if (d <= 0) {
01846 leave->vehstatus &= ~VS_HIDDEN;
01847 leave->u.rail.track = AxisToTrackBits(DiagDirToAxis(GetRailDepotDirection(leave->tile)));
01848 for (int i = 0; i >= d; i--) TrainController(leave, NULL, false);
01849 }
01850 } else {
01851 dep = NULL;
01852 }
01853
01854 Vehicle *base = v;
01855 Vehicle *first = base;
01856 Vehicle *last = GetLastVehicleInChain(v);
01857 uint length = CountVehiclesInChain(v);
01858
01859
01860
01861 bool nomove = (dep == NULL);
01862
01863 while (length > 2) {
01864
01865
01866 if (base == dep) break;
01867
01868
01869 if (last == dep) nomove = true;
01870
01871 last = last->Previous();
01872 first = first->Next();
01873
01874 int differential = last->u.rail.cached_veh_length - base->u.rail.cached_veh_length;
01875
01876
01877 for (int i = 0; i < differential; i++) TrainController(first, (nomove ? last->Next() : NULL), false);
01878
01879 base = first;
01880 length -= 2;
01881 }
01882 }
01883
01884
01885 static void ReverseTrainDirection(Vehicle *v)
01886 {
01887 if (IsTileDepotType(v->tile, TRANSPORT_RAIL)) {
01888 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01889 }
01890
01891
01892 TileIndex crossing = TrainApproachingCrossingTile(v);
01893
01894
01895 int r = 0;
01896 for (const Vehicle *u = v; (u = u->Next()) != NULL;) { r++; }
01897
01898 AdvanceWagonsBeforeSwap(v);
01899
01900
01901 int l = 0;
01902 do {
01903 ReverseTrainSwapVeh(v, l++, r--);
01904 } while (l <= r);
01905
01906 AdvanceWagonsAfterSwap(v);
01907
01908 if (IsTileDepotType(v->tile, TRANSPORT_RAIL)) {
01909 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
01910 }
01911
01912
01913 for (Vehicle *u = v; u != NULL; u = u->Next()) ToggleBit(u->u.rail.flags, VRF_TOGGLE_REVERSE);
01914
01915 ClrBit(v->u.rail.flags, VRF_REVERSING);
01916
01917
01918 TrainConsistChanged(v, true);
01919
01920
01921 for (Vehicle *u = v; u != NULL; u = u->Next()) u->cur_image = u->GetImage(u->direction);
01922
01923
01924 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
01925
01926
01927 crossing = TrainApproachingCrossingTile(v);
01928 if (crossing != INVALID_TILE) MaybeBarCrossingWithSound(crossing);
01929 }
01930
01937 CommandCost CmdReverseTrainDirection(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
01938 {
01939 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01940
01941 Vehicle *v = GetVehicle(p1);
01942
01943 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01944
01945 if (p2) {
01946
01947
01948 if (IsMultiheaded(v) || HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_ARTIC_ENGINE)) {
01949 return_cmd_error(STR_ONLY_TURN_SINGLE_UNIT);
01950 }
01951
01952 Vehicle *front = v->First();
01953
01954 if (CheckTrainStoppedInDepot(front) < 0) {
01955 return_cmd_error(STR_881A_TRAINS_CAN_ONLY_BE_ALTERED);
01956 }
01957
01958 if (flags & DC_EXEC) {
01959 ToggleBit(v->u.rail.flags, VRF_REVERSE_DIRECTION);
01960 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
01961 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
01962 }
01963 } else {
01964
01965 if (v->vehstatus & VS_CRASHED || v->breakdown_ctr != 0) return CMD_ERROR;
01966
01967 if (flags & DC_EXEC) {
01968 if (_patches.realistic_acceleration && v->cur_speed != 0) {
01969 ToggleBit(v->u.rail.flags, VRF_REVERSING);
01970 } else {
01971 v->cur_speed = 0;
01972 SetLastSpeed(v, 0);
01973 HideFillingPercent(&v->fill_percent_te_id);
01974 ReverseTrainDirection(v);
01975 }
01976 }
01977 }
01978 return CommandCost();
01979 }
01980
01987 CommandCost CmdForceTrainProceed(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
01988 {
01989 if (!IsValidVehicleID(p1)) return CMD_ERROR;
01990
01991 Vehicle *v = GetVehicle(p1);
01992
01993 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
01994
01995 if (flags & DC_EXEC) v->u.rail.force_proceed = 0x50;
01996
01997 return CommandCost();
01998 }
01999
02010 CommandCost CmdRefitRailVehicle(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
02011 {
02012 CargoID new_cid = GB(p2, 0, 8);
02013 byte new_subtype = GB(p2, 8, 8);
02014 bool only_this = HasBit(p2, 16);
02015
02016 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02017
02018 Vehicle *v = GetVehicle(p1);
02019
02020 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
02021 if (CheckTrainStoppedInDepot(v) < 0) return_cmd_error(STR_TRAIN_MUST_BE_STOPPED);
02022 if (v->vehstatus & VS_CRASHED) return_cmd_error(STR_CAN_T_REFIT_DESTROYED_VEHICLE);
02023
02024
02025 if (new_cid >= NUM_CARGO) return CMD_ERROR;
02026
02027 CommandCost cost(EXPENSES_TRAIN_RUN);
02028 uint num = 0;
02029
02030 do {
02031
02032
02033
02034 if (!CanRefitTo(v->engine_type, new_cid)) continue;
02035
02036 if (v->cargo_cap != 0) {
02037 uint16 amount = CALLBACK_FAILED;
02038
02039 if (HasBit(EngInfo(v->engine_type)->callbackmask, CBM_VEHICLE_REFIT_CAPACITY)) {
02040
02041 CargoID temp_cid = v->cargo_type;
02042 byte temp_subtype = v->cargo_subtype;
02043 v->cargo_type = new_cid;
02044 v->cargo_subtype = new_subtype;
02045
02046 amount = GetVehicleCallback(CBID_VEHICLE_REFIT_CAPACITY, 0, 0, v->engine_type, v);
02047
02048 v->cargo_type = temp_cid;
02049 v->cargo_subtype = temp_subtype;
02050 }
02051
02052 if (amount == CALLBACK_FAILED) {
02053 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02054 CargoID old_cid = rvi->cargo_type;
02055
02056
02057
02058
02059 amount = rvi->capacity;
02060 switch (old_cid) {
02061 case CT_PASSENGERS: break;
02062 case CT_MAIL:
02063 case CT_GOODS: amount *= 2; break;
02064 default: amount *= 4; break;
02065 }
02066 switch (new_cid) {
02067 case CT_PASSENGERS: break;
02068 case CT_MAIL:
02069 case CT_GOODS: amount /= 2; break;
02070 default: amount /= 4; break;
02071 }
02072 }
02073
02074 if (amount != 0) {
02075 if (new_cid != v->cargo_type) {
02076 cost.AddCost(GetRefitCost(v->engine_type));
02077 }
02078
02079 num += amount;
02080 if (flags & DC_EXEC) {
02081 v->cargo.Truncate((v->cargo_type == new_cid) ? amount : 0);
02082 v->cargo_type = new_cid;
02083 v->cargo_cap = amount;
02084 v->cargo_subtype = new_subtype;
02085 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
02086 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02087 RebuildVehicleLists();
02088 }
02089 }
02090 }
02091 } while ((v = v->Next()) != NULL && !only_this);
02092
02093 _returned_refit_capacity = num;
02094
02095
02096 if (flags & DC_EXEC) TrainConsistChanged(GetVehicle(p1)->First(), false);
02097
02098 return cost;
02099 }
02100
02101 struct TrainFindDepotData {
02102 uint best_length;
02103 TileIndex tile;
02104 PlayerID owner;
02109 bool reverse;
02110 };
02111
02112 static bool NtpCallbFindDepot(TileIndex tile, TrainFindDepotData *tfdd, int track, uint length)
02113 {
02114 if (IsTileType(tile, MP_RAILWAY) &&
02115 IsTileOwner(tile, tfdd->owner) &&
02116 IsRailDepot(tile)) {
02117
02118 tfdd->best_length = length / DIAG_FACTOR;
02119 tfdd->tile = tile;
02120 return true;
02121 }
02122
02123 return false;
02124 }
02125
02128 static TrainFindDepotData FindClosestTrainDepot(Vehicle *v, int max_distance)
02129 {
02130 assert(!(v->vehstatus & VS_CRASHED));
02131
02132 TrainFindDepotData tfdd;
02133 tfdd.owner = v->owner;
02134 tfdd.best_length = UINT_MAX;
02135 tfdd.reverse = false;
02136
02137 TileIndex tile = v->tile;
02138 if (IsTileDepotType(tile, TRANSPORT_RAIL)) {
02139 tfdd.tile = tile;
02140 tfdd.best_length = 0;
02141 return tfdd;
02142 }
02143
02144 switch (_patches.pathfinder_for_trains) {
02145 case VPF_YAPF: {
02146 bool found = YapfFindNearestRailDepotTwoWay(v, max_distance, NPF_INFINITE_PENALTY, &tfdd.tile, &tfdd.reverse);
02147 tfdd.best_length = found ? max_distance / 2 : UINT_MAX;
02148 } break;
02149
02150 case VPF_NPF: {
02151 Vehicle* last = GetLastVehicleInChain(v);
02152 Trackdir trackdir = GetVehicleTrackdir(v);
02153 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
02154
02155 assert(trackdir != INVALID_TRACKDIR);
02156 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);
02157 if (ftd.best_bird_dist == 0) {
02158
02159 tfdd.tile = ftd.node.tile;
02160
02161
02162
02163
02164 tfdd.best_length = ftd.best_path_dist / NPF_TILE_LENGTH;
02165 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) tfdd.reverse = true;
02166 }
02167 } break;
02168
02169 default:
02170 case VPF_NTP: {
02171
02172 DiagDirection i = TrainExitDir(v->direction, v->u.rail.track);
02173 NewTrainPathfind(tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02174 if (tfdd.best_length == UINT_MAX){
02175 tfdd.reverse = true;
02176
02177 i = TrainExitDir(ReverseDir(v->direction), v->u.rail.track);
02178 NewTrainPathfind(tile, 0, v->u.rail.compatible_railtypes, i, (NTPEnumProc*)NtpCallbFindDepot, &tfdd);
02179 }
02180 } break;
02181 }
02182
02183 return tfdd;
02184 }
02185
02194 CommandCost CmdSendTrainToDepot(TileIndex tile, uint32 flags, uint32 p1, uint32 p2)
02195 {
02196 if (p2 & DEPOT_MASS_SEND) {
02197
02198 if (!ValidVLWFlags(p2 & VLW_MASK)) return CMD_ERROR;
02199 return SendAllVehiclesToDepot(VEH_TRAIN, flags, p2 & DEPOT_SERVICE, _current_player, (p2 & VLW_MASK), p1);
02200 }
02201
02202 if (!IsValidVehicleID(p1)) return CMD_ERROR;
02203
02204 Vehicle *v = GetVehicle(p1);
02205
02206 if (v->type != VEH_TRAIN || !CheckOwnership(v->owner)) return CMD_ERROR;
02207
02208 if (v->vehstatus & VS_CRASHED) return CMD_ERROR;
02209
02210 if (v->current_order.type == OT_GOTO_DEPOT) {
02211 if (!!(p2 & DEPOT_SERVICE) == HasBit(v->current_order.flags, OF_HALT_IN_DEPOT)) {
02212
02213
02214
02215 if (flags & DC_EXEC) {
02216 ClrBit(v->current_order.flags, OF_PART_OF_ORDERS);
02217 ToggleBit(v->current_order.flags, OF_HALT_IN_DEPOT);
02218 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02219 }
02220 return CommandCost();
02221 }
02222
02223 if (p2 & DEPOT_DONT_CANCEL) return CMD_ERROR;
02224 if (flags & DC_EXEC) {
02225 if (HasBit(v->current_order.flags, OF_PART_OF_ORDERS)) {
02226 v->cur_order_index++;
02227 }
02228
02229 v->current_order.type = OT_DUMMY;
02230 v->current_order.flags = 0;
02231 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02232 }
02233 return CommandCost();
02234 }
02235
02236
02237
02238 if (IsTileDepotType(v->tile, TRANSPORT_RAIL) && v->cur_speed == 0) return CMD_ERROR;
02239
02240 TrainFindDepotData tfdd = FindClosestTrainDepot(v, 0);
02241 if (tfdd.best_length == (uint)-1) return_cmd_error(STR_883A_UNABLE_TO_FIND_ROUTE_TO);
02242
02243 if (flags & DC_EXEC) {
02244 if (v->current_order.type == OT_LOADING) v->LeaveStation();
02245
02246 v->dest_tile = tfdd.tile;
02247 v->current_order.type = OT_GOTO_DEPOT;
02248 v->current_order.flags = OFB_NON_STOP;
02249 if (!(p2 & DEPOT_SERVICE)) SetBit(v->current_order.flags, OF_HALT_IN_DEPOT);
02250 v->current_order.dest = GetDepotByTile(tfdd.tile)->index;
02251 v->current_order.refit_cargo = CT_INVALID;
02252 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
02253
02254 if (tfdd.reverse) DoCommand(v->tile, v->index, 0, DC_EXEC, CMD_REVERSE_TRAIN_DIRECTION);
02255 }
02256
02257 return CommandCost();
02258 }
02259
02260
02261 void OnTick_Train()
02262 {
02263 _age_cargo_skip_counter = (_age_cargo_skip_counter == 0) ? 184 : (_age_cargo_skip_counter - 1);
02264 }
02265
02266 static const int8 _vehicle_smoke_pos[8] = {
02267 1, 1, 1, 0, -1, -1, -1, 0
02268 };
02269
02270 static void HandleLocomotiveSmokeCloud(const Vehicle* v)
02271 {
02272 bool sound = false;
02273
02274 if (v->vehstatus & VS_TRAIN_SLOWING || v->load_unload_time_rem != 0 || v->cur_speed < 2)
02275 return;
02276
02277 const Vehicle* u = v;
02278
02279 do {
02280 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
02281 int effect_offset = GB(v->u.rail.cached_vis_effect, 0, 4) - 8;
02282 byte effect_type = GB(v->u.rail.cached_vis_effect, 4, 2);
02283 bool disable_effect = HasBit(v->u.rail.cached_vis_effect, 6);
02284
02285
02286 if ((rvi->railveh_type == RAILVEH_WAGON && effect_type == 0) ||
02287 disable_effect ||
02288 v->vehstatus & VS_HIDDEN) {
02289 continue;
02290 }
02291
02292
02293 if (IsTileDepotType(v->tile, TRANSPORT_RAIL) || IsTunnelTile(v->tile)) continue;
02294
02295
02296 if (!HasPowerOnRail(v->u.rail.railtype, GetTileRailType(v->tile))) continue;
02297
02298 if (effect_type == 0) {
02299
02300 effect_type = rvi->engclass;
02301 } else {
02302 effect_type--;
02303 }
02304
02305 int x = _vehicle_smoke_pos[v->direction] * effect_offset;
02306 int y = _vehicle_smoke_pos[(v->direction + 2) % 8] * effect_offset;
02307
02308 if (HasBit(v->u.rail.flags, VRF_REVERSE_DIRECTION)) {
02309 x = -x;
02310 y = -y;
02311 }
02312
02313 switch (effect_type) {
02314 case 0:
02315
02316 if (GB(v->tick_counter, 0, 4) == 0) {
02317 CreateEffectVehicleRel(v, x, y, 10, EV_STEAM_SMOKE);
02318 sound = true;
02319 }
02320 break;
02321
02322 case 1:
02323
02324 if (u->cur_speed <= 40 && Chance16(15, 128)) {
02325 CreateEffectVehicleRel(v, 0, 0, 10, EV_DIESEL_SMOKE);
02326 sound = true;
02327 }
02328 break;
02329
02330 case 2:
02331
02332 if (GB(v->tick_counter, 0, 2) == 0 && Chance16(1, 45)) {
02333 CreateEffectVehicleRel(v, 0, 0, 10, EV_ELECTRIC_SPARK);
02334 sound = true;
02335 }
02336 break;
02337 }
02338 } while ((v = v->Next()) != NULL);
02339
02340 if (sound) PlayVehicleSound(u, VSE_TRAIN_EFFECT);
02341 }
02342
02343 void Train::PlayLeaveStationSound() const
02344 {
02345 static const SoundFx sfx[] = {
02346 SND_04_TRAIN,
02347 SND_0A_TRAIN_HORN,
02348 SND_0A_TRAIN_HORN,
02349 SND_47_MAGLEV_2,
02350 SND_41_MAGLEV
02351 };
02352
02353 if (PlayVehicleSound(this, VSE_START)) return;
02354
02355 EngineID engtype = this->engine_type;
02356 SndPlayVehicleFx(sfx[RailVehInfo(engtype)->engclass], this);
02357 }
02358
02359 static bool CheckTrainStayInDepot(Vehicle *v)
02360 {
02361
02362 for (const Vehicle *u = v; u != NULL; u = u->Next()) {
02363 if (u->u.rail.track != TRACK_BIT_DEPOT || u->tile != v->tile) return false;
02364 }
02365
02366
02367 if (v->u.rail.cached_power == 0) {
02368 v->vehstatus |= VS_STOPPED;
02369 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
02370 return true;
02371 }
02372
02373 if (v->u.rail.force_proceed == 0) {
02374 if (++v->load_unload_time_rem < 37) {
02375 InvalidateWindowClasses(WC_TRAINS_LIST);
02376 return true;
02377 }
02378
02379 v->load_unload_time_rem = 0;
02380
02381 if (UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner)) {
02382 InvalidateWindowClasses(WC_TRAINS_LIST);
02383 return true;
02384 }
02385 }
02386
02387 VehicleServiceInDepot(v);
02388 InvalidateWindowClasses(WC_TRAINS_LIST);
02389 v->PlayLeaveStationSound();
02390
02391 v->u.rail.track = TRACK_BIT_X;
02392 if (v->direction & 2) v->u.rail.track = TRACK_BIT_Y;
02393
02394 v->vehstatus &= ~VS_HIDDEN;
02395 v->cur_speed = 0;
02396
02397 v->UpdateDeltaXY(v->direction);
02398 v->cur_image = v->GetImage(v->direction);
02399 VehiclePositionChanged(v);
02400 UpdateSignalsOnSegment(v->tile, INVALID_DIAGDIR, v->owner);
02401 UpdateTrainAcceleration(v);
02402 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
02403
02404 return false;
02405 }
02406
02407
02408 struct TrainTrackFollowerData {
02409 TileIndex dest_coords;
02410 StationID station_index;
02411 uint best_bird_dist;
02412 uint best_track_dist;
02413 TrackdirByte best_track;
02414 };
02415
02416 static bool NtpCallbFindStation(TileIndex tile, TrainTrackFollowerData *ttfd, Trackdir track, uint length)
02417 {
02418
02419 if (ttfd->dest_coords == 0) return false;
02420
02421
02422 if ((ttfd->station_index == INVALID_STATION && tile == ttfd->dest_coords) || (
02423 IsTileType(tile, MP_STATION) &&
02424 IsRailwayStation(tile) &&
02425 GetStationIndex(tile) == ttfd->station_index
02426 )) {
02427
02428
02429
02430
02431
02432 ttfd->best_track = track;
02433 ttfd->best_bird_dist = 0;
02434 return true;
02435 } else {
02436
02437 uint dist = DistanceManhattan(tile, ttfd->dest_coords);
02438 if (dist < ttfd->best_bird_dist) {
02439 ttfd->best_bird_dist = dist;
02440 ttfd->best_track = track;
02441 }
02442 return false;
02443 }
02444 }
02445
02446 static void FillWithStationData(TrainTrackFollowerData* fd, const Vehicle* v)
02447 {
02448 fd->dest_coords = v->dest_tile;
02449 if (v->current_order.type == OT_GOTO_STATION) {
02450 fd->station_index = v->current_order.dest;
02451 } else {
02452 fd->station_index = INVALID_STATION;
02453 }
02454 }
02455
02456 static const byte _initial_tile_subcoord[6][4][3] = {
02457 {{ 15, 8, 1 }, { 0, 0, 0 }, { 0, 8, 5 }, { 0, 0, 0 }},
02458 {{ 0, 0, 0 }, { 8, 0, 3 }, { 0, 0, 0 }, { 8, 15, 7 }},
02459 {{ 0, 0, 0 }, { 7, 0, 2 }, { 0, 7, 6 }, { 0, 0, 0 }},
02460 {{ 15, 8, 2 }, { 0, 0, 0 }, { 0, 0, 0 }, { 8, 15, 6 }},
02461 {{ 15, 7, 0 }, { 8, 0, 4 }, { 0, 0, 0 }, { 0, 0, 0 }},
02462 {{ 0, 0, 0 }, { 0, 0, 0 }, { 0, 8, 4 }, { 7, 15, 0 }},
02463 };
02464
02465 static const uint32 _reachable_tracks[4] = {
02466 0x10091009,
02467 0x00160016,
02468 0x05200520,
02469 0x2A002A00,
02470 };
02471
02472 static const byte _search_directions[6][4] = {
02473 { 0, 9, 2, 9 },
02474 { 9, 1, 9, 3 },
02475 { 9, 0, 3, 9 },
02476 { 1, 9, 9, 2 },
02477 { 3, 2, 9, 9 },
02478 { 9, 9, 1, 0 },
02479 };
02480
02481 static const byte _pick_track_table[6] = {1, 3, 2, 2, 0, 0};
02482
02483
02484 static Track ChooseTrainTrack(Vehicle* v, TileIndex tile, DiagDirection enterdir, TrackBits tracks)
02485 {
02486 Track best_track;
02487
02488 bool path_not_found = false;
02489
02490 #ifdef PF_BENCHMARK
02491 TIC()
02492 #endif
02493
02494 assert((tracks & ~TRACK_BIT_MASK) == 0);
02495
02496
02497 if (KillFirstBit(tracks) == TRACK_BIT_NONE) return FindFirstTrack(tracks);
02498
02499 switch (_patches.pathfinder_for_trains) {
02500 case VPF_YAPF: {
02501 Trackdir trackdir = YapfChooseRailTrack(v, tile, enterdir, tracks, &path_not_found);
02502 if (trackdir != INVALID_TRACKDIR) {
02503 best_track = TrackdirToTrack(trackdir);
02504 } else {
02505 best_track = FindFirstTrack(tracks);
02506 }
02507 } break;
02508
02509 case VPF_NPF: {
02510 void *perf = NpfBeginInterval();
02511
02512 NPFFindStationOrTileData fstd;
02513 NPFFillWithOrderData(&fstd, v);
02514
02515 Trackdir trackdir = GetVehicleTrackdir(v);
02516 assert(trackdir != INVALID_TRACKDIR);
02517
02518 NPFFoundTargetData ftd = NPFRouteToStationOrTile(tile - TileOffsByDiagDir(enterdir), trackdir, true, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
02519
02520 if (ftd.best_trackdir == INVALID_TRACKDIR) {
02521
02522
02523
02524 best_track = FindFirstTrack(tracks);
02525 } else {
02526
02527
02528
02529
02530 if (ftd.best_bird_dist != 0) path_not_found = true;
02531
02532 best_track = TrackdirToTrack(ftd.best_trackdir);
02533 }
02534
02535 int time = NpfEndInterval(perf);
02536 DEBUG(yapf, 4, "[NPFT] %d us - %d rounds - %d open - %d closed -- ", time, 0, _aystar_stats_open_size, _aystar_stats_closed_size);
02537 } break;
02538
02539 default:
02540 case VPF_NTP: {
02541 void *perf = NpfBeginInterval();
02542
02543 TrainTrackFollowerData fd;
02544 FillWithStationData(&fd, v);
02545
02546
02547 fd.best_bird_dist = UINT_MAX;
02548 fd.best_track_dist = UINT_MAX;
02549 fd.best_track = INVALID_TRACKDIR;
02550
02551 NewTrainPathfind(tile - TileOffsByDiagDir(enterdir), v->dest_tile,
02552 v->u.rail.compatible_railtypes, enterdir, (NTPEnumProc*)NtpCallbFindStation, &fd);
02553
02554
02555 if (fd.best_bird_dist != 0) path_not_found = true;
02556
02557 if (fd.best_track == INVALID_TRACKDIR) {
02558
02559 best_track = FindFirstTrack(tracks);
02560 } else {
02561 best_track = TrackdirToTrack(fd.best_track);
02562 }
02563
02564 int time = NpfEndInterval(perf);
02565 DEBUG(yapf, 4, "[NTPT] %d us - %d rounds - %d open - %d closed -- ", time, 0, 0, 0);
02566 } break;
02567 }
02568
02569
02570 if (path_not_found) {
02571
02572 if (!HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02573
02574 SetBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02575
02576 if (_patches.lost_train_warn && v->owner == _local_player) {
02577 SetDParam(0, v->unitnumber);
02578 AddNewsItem(
02579 STR_TRAIN_IS_LOST,
02580 NEWS_FLAGS(NM_SMALL, NF_VIEWPORT|NF_VEHICLE, NT_ADVICE, 0),
02581 v->index,
02582 0);
02583 }
02584 }
02585 } else {
02586
02587 if (HasBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION)) {
02588
02589 ClrBit(v->u.rail.flags, VRF_NO_PATH_TO_DESTINATION);
02590
02591 }
02592 }
02593
02594 #ifdef PF_BENCHMARK
02595 TOC("PF time = ", 1)
02596 #endif
02597
02598 return best_track;
02599 }
02600
02601
02602 static bool CheckReverseTrain(Vehicle *v)
02603 {
02604 if (_opt.diff.line_reverse_mode != 0 ||
02605 v->u.rail.track == TRACK_BIT_DEPOT || v->u.rail.track == TRACK_BIT_WORMHOLE ||
02606 !(v->direction & 1))
02607 return false;
02608
02609 TrainTrackFollowerData fd;
02610 FillWithStationData(&fd, v);
02611
02612 uint reverse_best = 0;
02613
02614 assert(v->u.rail.track);
02615
02616 int i = _search_directions[FIND_FIRST_BIT(v->u.rail.track)][DirToDiagDir(v->direction)];
02617
02618 switch (_patches.pathfinder_for_trains) {
02619 case VPF_YAPF: {
02620 reverse_best = YapfCheckReverseTrain(v);
02621 } break;
02622
02623 case VPF_NPF: {
02624 NPFFindStationOrTileData fstd;
02625 NPFFoundTargetData ftd;
02626 Vehicle* last = GetLastVehicleInChain(v);
02627
02628 NPFFillWithOrderData(&fstd, v);
02629
02630 Trackdir trackdir = GetVehicleTrackdir(v);
02631 Trackdir trackdir_rev = ReverseTrackdir(GetVehicleTrackdir(last));
02632 assert(trackdir != INVALID_TRACKDIR);
02633 assert(trackdir_rev != INVALID_TRACKDIR);
02634
02635 ftd = NPFRouteToStationOrTileTwoWay(v->tile, trackdir, false, last->tile, trackdir_rev, false, &fstd, TRANSPORT_RAIL, 0, v->owner, v->u.rail.compatible_railtypes);
02636 if (ftd.best_bird_dist != 0) {
02637
02638 reverse_best = false;
02639 } else {
02640 if (NPFGetFlag(&ftd.node, NPF_FLAG_REVERSE)) {
02641 reverse_best = true;
02642 } else {
02643 reverse_best = false;
02644 }
02645 }
02646 } break;
02647
02648 default:
02649 case VPF_NTP: {
02650 int best_track = -1;
02651 uint reverse = 0;
02652 uint best_bird_dist = 0;
02653 uint best_track_dist = 0;
02654
02655 for (;;) {
02656 fd.best_bird_dist = UINT_MAX;
02657 fd.best_track_dist = UINT_MAX;
02658
02659 NewTrainPathfind(v->tile, v->dest_tile, v->u.rail.compatible_railtypes, (DiagDirection)(reverse ^ i), (NTPEnumProc*)NtpCallbFindStation, &fd);
02660
02661 if (best_track != -1) {
02662 if (best_bird_dist != 0) {
02663 if (fd.best_bird_dist != 0) {
02664
02665 if (fd.best_bird_dist > best_bird_dist) goto bad;
02666 if (fd.best_bird_dist < best_bird_dist) goto good;
02667 } else {
02668
02669 goto good;
02670 }
02671 } else {
02672 if (fd.best_bird_dist != 0) {
02673
02674 goto bad;
02675 } else {
02676
02677 if (fd.best_track_dist > best_track_dist) goto bad;
02678 if (fd.best_track_dist < best_track_dist) goto good;
02679 }
02680 }
02681
02682
02683
02684 int r = GB(Random(), 0, 8);
02685 if (_pick_track_table[i] == (v->direction & 3)) r += 80;
02686 if (_pick_track_table[best_track] == (v->direction & 3)) r -= 80;
02687 if (r <= 127) goto bad;
02688 }
02689 good:;
02690 best_track = i;
02691 best_bird_dist = fd.best_bird_dist;
02692 best_track_dist = fd.best_track_dist;
02693 reverse_best = reverse;
02694 bad:;
02695 if (reverse != 0) break;
02696 reverse = 2;
02697 }
02698 } break;
02699 }
02700
02701 return reverse_best != 0;
02702 }
02703
02704 static bool ProcessTrainOrder(Vehicle *v)
02705 {
02706 switch (v->current_order.type) {
02707 case OT_GOTO_DEPOT:
02708 if (!(v->current_order.flags & OFB_PART_OF_ORDERS)) return false;
02709 if ((v->current_order.flags & OFB_SERVICE_IF_NEEDED) &&
02710 !v->NeedsServicing()) {
02711 UpdateVehicleTimetable(v, true);
02712 v->cur_order_index++;
02713 }
02714 break;
02715
02716 case OT_LOADING:
02717 case OT_LEAVESTATION:
02718 return false;
02719
02720 default: break;
02721 }
02722
02730 bool may_reverse = v->current_order.type == OT_NOTHING;
02731
02732
02733 if (v->current_order.type == OT_GOTO_WAYPOINT && v->tile == v->dest_tile) {
02734 UpdateVehicleTimetable(v, true);
02735 v->cur_order_index++;
02736 }
02737
02738
02739 if (_patches.new_nonstop &&
02740 v->current_order.flags & OFB_NON_STOP &&
02741 IsTileType(v->tile, MP_STATION) &&
02742 v->current_order.dest == GetStationIndex(v->tile)) {
02743 UpdateVehicleTimetable(v, true);
02744 v->cur_order_index++;
02745 }
02746
02747
02748 if (v->cur_order_index >= v->num_orders) v->cur_order_index = 0;
02749
02750 const Order *order = GetVehicleOrder(v, v->cur_order_index);
02751
02752
02753 if (order == NULL) {
02754 v->current_order.Free();
02755 v->dest_tile = 0;
02756 return false;
02757 }
02758
02759
02760 if (order->type == v->current_order.type &&
02761 order->flags == v->current_order.flags &&
02762 order->dest == v->current_order.dest)
02763 return false;
02764
02765
02766 v->current_order = *order;
02767
02768 v->dest_tile = 0;
02769
02770 InvalidateVehicleOrder(v);
02771
02772 switch (order->type) {
02773 case OT_GOTO_STATION:
02774 if (order->dest == v->last_station_visited)
02775 v->last_station_visited = INVALID_STATION;
02776 v->dest_tile = GetStation(order->dest)->xy;
02777 break;
02778
02779 case OT_GOTO_DEPOT:
02780 v->dest_tile = GetDepot(order->dest)->xy;
02781 break;
02782
02783 case OT_GOTO_WAYPOINT:
02784 v->dest_tile = GetWaypoint(order->dest)->xy;
02785 break;
02786
02787 default:
02788 return false;
02789 }
02790
02791 return may_reverse && CheckReverseTrain(v);
02792 }
02793
02794 void Train::MarkDirty()
02795 {
02796 Vehicle *v = this;
02797 do {
02798 v->cur_image = v->GetImage(v->direction);
02799 MarkSingleVehicleDirty(v);
02800 } while ((v = v->Next()) != NULL);
02801
02802
02803 TrainCargoChanged(this);
02804 UpdateTrainAcceleration(this);
02805 }
02806
02807 static int UpdateTrainSpeed(Vehicle *v)
02808 {
02809 uint accel;
02810
02811 if (v->vehstatus & VS_STOPPED || HasBit(v->u.rail.flags, VRF_REVERSING)) {
02812 if (_patches.realistic_acceleration) {
02813 accel = GetTrainAcceleration(v, AM_BRAKE) * 2;
02814 } else {
02815 accel = v->acceleration * -2;
02816 }
02817 } else {
02818 if (_patches.realistic_acceleration) {
02819 accel = GetTrainAcceleration(v, AM_ACCEL);
02820 } else {
02821 accel = v->acceleration;
02822 }
02823 }
02824
02825 uint spd = v->subspeed + accel * 2;
02826 v->subspeed = (byte)spd;
02827 {
02828 int tempmax = v->max_speed;
02829 if (v->cur_speed > v->max_speed)
02830 tempmax = v->cur_speed - (v->cur_speed / 10) - 1;
02831 v->cur_speed = spd = Clamp(v->cur_speed + ((int)spd >> 8), 0, tempmax);
02832 }
02833
02834 if (!(v->direction & 1)) spd = spd * 3 >> 2;
02835
02836 spd += v->progress;
02837 v->progress = (byte)spd;
02838 return (spd >> 8);
02839 }
02840
02841 static void TrainEnterStation(Vehicle *v, StationID station)
02842 {
02843 v->last_station_visited = station;
02844
02845
02846 Station *st = GetStation(station);
02847 if (!(st->had_vehicle_of_type & HVOT_TRAIN)) {
02848 st->had_vehicle_of_type |= HVOT_TRAIN;
02849 SetDParam(0, st->index);
02850 uint32 flags = v->owner == _local_player ?
02851 NEWS_FLAGS(NM_THIN, NF_VIEWPORT | NF_VEHICLE, NT_ARRIVAL_PLAYER, 0) :
02852 NEWS_FLAGS(NM_THIN, NF_VIEWPORT | NF_VEHICLE, NT_ARRIVAL_OTHER, 0);
02853 AddNewsItem(
02854 STR_8801_CITIZENS_CELEBRATE_FIRST,
02855 flags,
02856 v->index,
02857 0
02858 );
02859 }
02860
02861 v->BeginLoading();
02862 v->current_order.dest = 0;
02863 }
02864
02865 static byte AfterSetTrainPos(Vehicle *v, bool new_tile)
02866 {
02867 byte old_z = v->z_pos;
02868 v->z_pos = GetSlopeZ(v->x_pos, v->y_pos);
02869
02870 if (new_tile) {
02871 ClrBit(v->u.rail.flags, VRF_GOINGUP);
02872 ClrBit(v->u.rail.flags, VRF_GOINGDOWN);
02873
02874 if (v->u.rail.track == TRACK_BIT_X || v->u.rail.track == TRACK_BIT_Y) {
02875
02876
02877
02878
02879
02880 static const int HALF_TILE_SIZE = TILE_SIZE / 2;
02881 static const int INV_TILE_SIZE_MASK = ~(TILE_SIZE - 1);
02882
02883 byte middle_z = GetSlopeZ((v->x_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE, (v->y_pos & INV_TILE_SIZE_MASK) | HALF_TILE_SIZE);
02884
02885
02886
02887 if (middle_z != v->z_pos && !IsTunnelTile(TileVirtXY(v->x_pos, v->y_pos))) {
02888 SetBit(v->u.rail.flags, (middle_z > old_z) ? VRF_GOINGUP : VRF_GOINGDOWN);
02889 }
02890 }
02891 }
02892
02893 VehiclePositionChanged(v);
02894 EndVehicleMove(v);
02895 return old_z;
02896 }
02897
02898 static const Direction _new_vehicle_direction_table[11] = {
02899 DIR_N , DIR_NW, DIR_W , INVALID_DIR,
02900 DIR_NE, DIR_N , DIR_SW, INVALID_DIR,
02901 DIR_E , DIR_SE, DIR_S
02902 };
02903
02904 static inline Direction GetNewVehicleDirectionByTile(TileIndex new_tile, TileIndex old_tile)
02905 {
02906 uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
02907 TileX(new_tile) - TileX(old_tile) + 1;
02908 assert(offs < 11);
02909 return _new_vehicle_direction_table[offs];
02910 }
02911
02912 static inline int GetDirectionToVehicle(const Vehicle *v, int x, int y)
02913 {
02914 byte offs;
02915
02916 x -= v->x_pos;
02917 if (x >= 0) {
02918 offs = (x > 2) ? 0 : 1;
02919 } else {
02920 offs = (x < -2) ? 2 : 1;
02921 }
02922
02923 y -= v->y_pos;
02924 if (y >= 0) {
02925 offs += ((y > 2) ? 0 : 1) * 4;
02926 } else {
02927 offs += ((y < -2) ? 2 : 1) * 4;
02928 }
02929
02930 assert(offs < 11);
02931 return _new_vehicle_direction_table[offs];
02932 }
02933
02934
02935 static inline bool CheckCompatibleRail(const Vehicle *v, TileIndex tile)
02936 {
02937 return
02938 IsTileOwner(tile, v->owner) && (
02939 !IsFrontEngine(v) ||
02940 HasBit(v->u.rail.compatible_railtypes, GetRailType(tile))
02941 );
02942 }
02943
02944 struct RailtypeSlowdownParams {
02945 byte small_turn, large_turn;
02946 byte z_up;
02947 byte z_down;
02948 };
02949
02950 static const RailtypeSlowdownParams _railtype_slowdown[] = {
02951
02952 {256 / 4, 256 / 2, 256 / 4, 2},
02953 {256 / 4, 256 / 2, 256 / 4, 2},
02954 {256 / 4, 256 / 2, 256 / 4, 2},
02955 {0, 256 / 2, 256 / 4, 2},
02956 };
02957
02959 static inline void AffectSpeedByDirChange(Vehicle* v, Direction new_dir)
02960 {
02961 if (_patches.realistic_acceleration) return;
02962
02963 DirDiff diff = DirDifference(v->direction, new_dir);
02964 if (diff == DIRDIFF_SAME) return;
02965
02966 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
02967 v->cur_speed -= (diff == DIRDIFF_45RIGHT || diff == DIRDIFF_45LEFT ? rsp->small_turn : rsp->large_turn) * v->cur_speed >> 8;
02968 }
02969
02971 static inline void AffectSpeedByZChange(Vehicle *v, byte old_z)
02972 {
02973 if (old_z == v->z_pos || _patches.realistic_acceleration) return;
02974
02975 const RailtypeSlowdownParams *rsp = &_railtype_slowdown[v->u.rail.railtype];
02976
02977 if (old_z < v->z_pos) {
02978 v->cur_speed -= (v->cur_speed * rsp->z_up >> 8);
02979 } else {
02980 uint16 spd = v->cur_speed + rsp->z_down;
02981 if (spd <= v->max_speed) v->cur_speed = spd;
02982 }
02983 }
02984
02985 static const DiagDirection _otherside_signal_directions[] = {
02986 DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_NE, DIAGDIR_SE, DIAGDIR_SW, DIAGDIR_SE, INVALID_DIAGDIR, INVALID_DIAGDIR,
02987 DIAGDIR_SW, DIAGDIR_NW, DIAGDIR_NW, DIAGDIR_SW, DIAGDIR_NW, DIAGDIR_NE
02988 };
02989
02990 static void TrainMovedChangeSignals(TileIndex tile, DiagDirection dir)
02991 {
02992 if (IsTileType(tile, MP_RAILWAY) &&
02993 GetRailTileType(tile) == RAIL_TILE_SIGNALS) {
02994 uint i = FindFirstBit2x64(GetTrackBits(tile) * 0x101 & _reachable_tracks[dir]);
02995 UpdateSignalsOnSegment(tile, _otherside_signal_directions[i], GetTileOwner(tile));
02996 }
02997 }
02998
02999
03000 static void SetVehicleCrashed(Vehicle *v)
03001 {
03002 if (v->u.rail.crash_anim_pos != 0) return;
03003
03004
03005 TileIndex crossing = TrainApproachingCrossingTile(v);
03006
03007 v->u.rail.crash_anim_pos++;
03008
03009 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03010 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
03011
03012 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03013 InvalidateWindow(WC_VEHICLE_DEPOT, v->tile);
03014 }
03015
03016 RebuildVehicleLists();
03017
03018 BEGIN_ENUM_WAGONS(v)
03019 v->vehstatus |= VS_CRASHED;
03020 MarkSingleVehicleDirty(v);
03021 END_ENUM_WAGONS(v)
03022
03023
03024 if (crossing != INVALID_TILE) UpdateLevelCrossing(crossing);
03025 }
03026
03027 static uint CountPassengersInTrain(const Vehicle* v)
03028 {
03029 uint num = 0;
03030 BEGIN_ENUM_WAGONS(v)
03031 if (IsCargoInClass(v->cargo_type, CC_PASSENGERS)) num += v->cargo.Count();
03032 END_ENUM_WAGONS(v)
03033 return num;
03034 }
03035
03036 struct TrainCollideChecker {
03037 Vehicle *v;
03038 uint num;
03039 };
03040
03041 static void *FindTrainCollideEnum(Vehicle *v, void *data)
03042 {
03043 TrainCollideChecker* tcc = (TrainCollideChecker*)data;
03044
03045 if (v->type != VEH_TRAIN) return NULL;
03046
03047
03048 Vehicle *coll = v->First();
03049
03050
03051 if (coll != tcc->v && v->u.rail.track != TRACK_BIT_DEPOT && abs(v->z_pos - tcc->v->z_pos) < 6) {
03052 int x_diff = v->x_pos - tcc->v->x_pos;
03053 int y_diff = v->y_pos - tcc->v->y_pos;
03054
03055
03056 if (x_diff * x_diff + y_diff * y_diff > 25) return NULL;
03057
03058 if (!(tcc->v->vehstatus & VS_CRASHED)) {
03059
03060 tcc->num += 2 + CountPassengersInTrain(tcc->v);
03061 SetVehicleCrashed(tcc->v);
03062 }
03063
03064 if (!(coll->vehstatus & VS_CRASHED)) {
03065
03066 tcc->num += 2 + CountPassengersInTrain(coll);
03067 SetVehicleCrashed(coll);
03068 }
03069 }
03070
03071 return NULL;
03072 }
03073
03080 static void CheckTrainCollision(Vehicle *v)
03081 {
03082
03083 if (v->u.rail.track == TRACK_BIT_DEPOT) return;
03084
03085 assert(v->u.rail.track == TRACK_BIT_WORMHOLE || TileVirtXY(v->x_pos, v->y_pos) == v->tile);
03086
03087 TrainCollideChecker tcc;
03088 tcc.v = v;
03089 tcc.num = 0;
03090
03091
03092 if (v->u.rail.track == TRACK_BIT_WORMHOLE) {
03093 FindVehicleOnPos(v->tile, &tcc, FindTrainCollideEnum);
03094 FindVehicleOnPos(GetOtherTunnelBridgeEnd(v->tile), &tcc, FindTrainCollideEnum);
03095 } else {
03096 FindVehicleOnPosXY(v->x_pos, v->y_pos, &tcc, FindTrainCollideEnum);
03097 }
03098
03099
03100 if (tcc.num == 0) return;
03101
03102 SetDParam(0, tcc.num);
03103 AddNewsItem(STR_8868_TRAIN_CRASH_DIE_IN_FIREBALL,
03104 NEWS_FLAGS(NM_THIN, NF_VIEWPORT | NF_VEHICLE, NT_ACCIDENT, 0),
03105 v->index,
03106 0
03107 );
03108
03109 ModifyStationRatingAround(v->tile, v->owner, -160, 30);
03110 SndPlayVehicleFx(SND_13_BIG_CRASH, v);
03111 }
03112
03113 static void *CheckVehicleAtSignal(Vehicle *v, void *data)
03114 {
03115 DiagDirection exitdir = *(DiagDirection *)data;
03116
03117
03118 if (v->type == VEH_TRAIN && IsFrontEngine(v) && (v->u.rail.track & TRACK_BIT_MASK) != 0 && !(v->vehstatus & VS_CRASHED)) {
03119 if (v->cur_speed <= 5 && TrainExitDir(v->direction, v->u.rail.track) == exitdir) return v;
03120 }
03121
03122 return NULL;
03123 }
03124
03125 static void TrainController(Vehicle *v, Vehicle *nomove, bool update_image)
03126 {
03127 Vehicle *prev;
03128
03129
03130 for (prev = v->Previous(); v != nomove; prev = v, v = v->Next()) {
03131 DiagDirection enterdir = DIAGDIR_BEGIN;
03132 bool update_signals_crossing = false;
03133 BeginVehicleMove(v);
03134
03135 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
03136 if (v->u.rail.track != TRACK_BIT_WORMHOLE) {
03137
03138 if (gp.old_tile == gp.new_tile) {
03139
03140 if (v->u.rail.track == TRACK_BIT_DEPOT) {
03141
03142 gp.x = v->x_pos;
03143 gp.y = v->y_pos;
03144 } else {
03145
03146
03147 if (IsFrontEngine(v) && !TrainCheckIfLineEnds(v)) return;
03148
03149 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03150 if (HasBit(r, VETS_CANNOT_ENTER)) {
03151 goto invalid_rail;
03152 }
03153 if (HasBit(r, VETS_ENTERED_STATION)) {
03154 TrainEnterStation(v, r >> VETS_STATION_ID_OFFSET);
03155 return;
03156 }
03157
03158 if (v->current_order.type == OT_LEAVESTATION) {
03159 v->current_order.Free();
03160 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03161 }
03162 }
03163 } else {
03164
03165
03166
03167 Direction dir = GetNewVehicleDirectionByTile(gp.new_tile, gp.old_tile);
03168 enterdir = DirToDiagDir(dir);
03169 assert(IsValidDiagDirection(enterdir));
03170
03171
03172
03173 TrackStatus ts = GetTileTrackStatus(gp.new_tile, TRANSPORT_RAIL, 0, ReverseDiagDir(enterdir)) & _reachable_tracks[enterdir];
03174 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts);
03175 TrackBits red_signals = TrackdirBitsToTrackBits(TrackStatusToRedSignals(ts));
03176
03177 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03178 if (_patches.pathfinder_for_trains != VPF_NTP && _patches.forbid_90_deg && prev == NULL) {
03179
03180
03181 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
03182 }
03183
03184 if (bits == TRACK_BIT_NONE) goto invalid_rail;
03185
03186
03187
03188 if (!CheckCompatibleRail(v, gp.new_tile)) goto invalid_rail;
03189
03190 TrackBits chosen_track;
03191 if (prev == NULL) {
03192
03193
03194 chosen_track = TrackToTrackBits(ChooseTrainTrack(v, gp.new_tile, enterdir, bits));
03195 assert(chosen_track & bits);
03196
03197
03198 if (red_signals & chosen_track && v->u.rail.force_proceed == 0) {
03199
03200 Trackdir i = FindFirstTrackdir(trackdirbits);
03201
03202 if (!HasSignalOnTrackdir(gp.new_tile, ReverseTrackdir(i))) {
03203 v->cur_speed = 0;
03204 v->subspeed = 0;
03205 v->progress = 255 - 100;
03206 if (++v->load_unload_time_rem < _patches.wait_oneway_signal * 20) return;
03207 } else if (HasSignalOnTrackdir(gp.new_tile, i)) {
03208 v->cur_speed = 0;
03209 v->subspeed = 0;
03210 v->progress = 255 - 10;
03211 if (++v->load_unload_time_rem < _patches.wait_twoway_signal * 73) {
03212 DiagDirection exitdir = TrackdirToExitdir(i);
03213 TileIndex o_tile = TileAddByDiagDir(gp.new_tile, exitdir);
03214
03215 exitdir = ReverseDiagDir(exitdir);
03216
03217
03218 if (!HasVehicleOnPos(o_tile, &exitdir, &CheckVehicleAtSignal)) return;
03219 }
03220 }
03221 goto reverse_train_direction;
03222 }
03223 } else {
03224 static const TrackBits _matching_tracks[8] = {
03225 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03226 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y,
03227 TRACK_BIT_LEFT | TRACK_BIT_RIGHT, TRACK_BIT_X,
03228 TRACK_BIT_UPPER | TRACK_BIT_LOWER, TRACK_BIT_Y
03229 };
03230
03231
03232 chosen_track = (TrackBits)(byte)(_matching_tracks[GetDirectionToVehicle(prev, gp.x, gp.y)] & bits);
03233 }
03234
03235
03236 assert(
03237 chosen_track == TRACK_BIT_X || chosen_track == TRACK_BIT_Y ||
03238 chosen_track == TRACK_BIT_UPPER || chosen_track == TRACK_BIT_LOWER ||
03239 chosen_track == TRACK_BIT_LEFT || chosen_track == TRACK_BIT_RIGHT);
03240
03241
03242 const byte *b = _initial_tile_subcoord[FIND_FIRST_BIT(chosen_track)][enterdir];
03243 gp.x = (gp.x & ~0xF) | b[0];
03244 gp.y = (gp.y & ~0xF) | b[1];
03245 Direction chosen_dir = (Direction)b[2];
03246
03247
03248 uint32 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
03249 if (HasBit(r, VETS_CANNOT_ENTER)) {
03250 goto invalid_rail;
03251 }
03252
03253 if (IsFrontEngine(v)) v->load_unload_time_rem = 0;
03254
03255 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
03256 v->tile = gp.new_tile;
03257
03258 if (GetTileRailType(gp.new_tile) != GetTileRailType(gp.old_tile)) {
03259 TrainPowerChanged(v->First());
03260 }
03261
03262 v->u.rail.track = chosen_track;
03263 assert(v->u.rail.track);
03264 }
03265
03266
03267
03268 update_signals_crossing = true;
03269
03270 if (prev == NULL) AffectSpeedByDirChange(v, chosen_dir);
03271
03272 v->direction = chosen_dir;
03273 }
03274 } else {
03275
03276
03277
03278 if (!(v->vehstatus & VS_HIDDEN)) {
03279 v->cur_speed =
03280 min(v->cur_speed, GetBridgeSpec(GetBridgeType(v->tile))->speed);
03281 }
03282
03283 if (!IsTileType(gp.new_tile, MP_TUNNELBRIDGE) || !HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
03284 v->x_pos = gp.x;
03285 v->y_pos = gp.y;
03286 VehiclePositionChanged(v);
03287 if (!(v->vehstatus & VS_HIDDEN)) EndVehicleMove(v);
03288 continue;
03289 }
03290 }
03291
03292
03293 v->UpdateDeltaXY(v->direction);
03294 if (update_image) v->cur_image = v->GetImage(v->direction);
03295
03296 v->x_pos = gp.x;
03297 v->y_pos = gp.y;
03298
03299
03300 byte old_z = AfterSetTrainPos(v, (gp.new_tile != gp.old_tile));
03301
03302 if (prev == NULL) {
03303
03304 AffectSpeedByZChange(v, old_z);
03305 }
03306
03307 if (update_signals_crossing) {
03308 if (IsFrontEngine(v)) TrainMovedChangeSignals(gp.new_tile, enterdir);
03309
03310
03311
03312 if (v->Next() == NULL) {
03313 TrainMovedChangeSignals(gp.old_tile, ReverseDiagDir(enterdir));
03314 if (IsLevelCrossingTile(gp.old_tile)) UpdateLevelCrossing(gp.old_tile);
03315 }
03316 }
03317 }
03318 return;
03319
03320 invalid_rail:
03321
03322 if (prev != NULL) error("!Disconnecting train");
03323
03324 reverse_train_direction:
03325 v->load_unload_time_rem = 0;
03326 v->cur_speed = 0;
03327 v->subspeed = 0;
03328 ReverseTrainDirection(v);
03329 }
03330
03338 static void DeleteLastWagon(Vehicle *v)
03339 {
03340 Vehicle *first = v->First();
03341
03342
03343
03344
03345 Vehicle *u = v;
03346 for (; v->Next() != NULL; v = v->Next()) u = v;
03347 u->SetNext(NULL);
03348
03349 if (first == v) {
03350
03351 DeleteWindowById(WC_VEHICLE_VIEW, v->index);
03352 InvalidateWindow(WC_COMPANY, v->owner);
03353 } else {
03354
03355 TrainConsistChanged(first, false);
03356
03357
03358 if (first->u.rail.track == TRACK_BIT_DEPOT) {
03359 InvalidateWindow(WC_VEHICLE_DEPOT, first->tile);
03360 }
03361 }
03362
03363 RebuildVehicleLists();
03364
03365 MarkSingleVehicleDirty(v);
03366
03367
03368 TrackBits track = v->u.rail.track;
03369 TileIndex tile = v->tile;
03370 Owner owner = v->owner;
03371
03372 delete v;
03373 v = NULL;
03374
03375
03376 if (IsLevelCrossingTile(tile)) UpdateLevelCrossing(tile);
03377
03378
03379 if (IsTileType(tile, MP_TUNNELBRIDGE) || IsTileDepotType(tile, TRANSPORT_RAIL)) {
03380 UpdateSignalsOnSegment(tile, INVALID_DIAGDIR, owner);
03381 } else {
03382 SetSignalsOnBothDir(tile, (Track)(FIND_FIRST_BIT(track)), owner);
03383 }
03384 }
03385
03386 static void ChangeTrainDirRandomly(Vehicle *v)
03387 {
03388 static const DirDiff delta[] = {
03389 DIRDIFF_45LEFT, DIRDIFF_SAME, DIRDIFF_SAME, DIRDIFF_45RIGHT
03390 };
03391
03392 do {
03393
03394 if (!(v->vehstatus & VS_HIDDEN)) {
03395 v->direction = ChangeDir(v->direction, delta[GB(Random(), 0, 2)]);
03396 BeginVehicleMove(v);
03397 v->UpdateDeltaXY(v->direction);
03398 v->cur_image = v->GetImage(v->direction);
03399
03400
03401
03402 if (v->u.rail.track != TRACK_BIT_WORMHOLE) AfterSetTrainPos(v, false);
03403 }
03404 } while ((v = v->Next()) != NULL);
03405 }
03406
03407 static void HandleCrashedTrain(Vehicle *v)
03408 {
03409 int state = ++v->u.rail.crash_anim_pos;
03410
03411 if (state == 4 && !(v->vehstatus & VS_HIDDEN)) {
03412 CreateEffectVehicleRel(v, 4, 4, 8, EV_EXPLOSION_LARGE);
03413 }
03414
03415 uint32 r;
03416 if (state <= 200 && Chance16R(1, 7, r)) {
03417 int index = (r * 10 >> 16);
03418
03419 Vehicle *u = v;
03420 do {
03421 if (--index < 0) {
03422 r = Random();
03423
03424 CreateEffectVehicleRel(u,
03425 GB(r, 8, 3) + 2,
03426 GB(r, 16, 3) + 2,
03427 GB(r, 0, 3) + 5,
03428 EV_EXPLOSION_SMALL);
03429 break;
03430 }
03431 } while ((u = u->Next()) != NULL);
03432 }
03433
03434 if (state <= 240 && !(v->tick_counter & 3)) ChangeTrainDirRandomly(v);
03435
03436 if (state >= 4440 && !(v->tick_counter&0x1F)) {
03437 DeleteLastWagon(v);
03438 InvalidateWindow(WC_REPLACE_VEHICLE, (v->group_id << 16) | VEH_TRAIN);
03439 }
03440 }
03441
03442 static void HandleBrokenTrain(Vehicle *v)
03443 {
03444 if (v->breakdown_ctr != 1) {
03445 v->breakdown_ctr = 1;
03446 v->cur_speed = 0;
03447
03448 if (v->breakdowns_since_last_service != 255)
03449 v->breakdowns_since_last_service++;
03450
03451 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
03452 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
03453
03454 if (!PlayVehicleSound(v, VSE_BREAKDOWN)) {
03455 SndPlayVehicleFx((_opt.landscape != LT_TOYLAND) ?
03456 SND_10_TRAIN_BREAKDOWN : SND_3A_COMEDY_BREAKDOWN_2, v);
03457 }
03458
03459 if (!(v->vehstatus & VS_HIDDEN)) {
03460 Vehicle *u = CreateEffectVehicleRel(v, 4, 4, 5, EV_BREAKDOWN_SMOKE);
03461 if (u != NULL) u->u.special.animation_state = v->breakdown_delay * 2;
03462 }
03463 }
03464
03465 if (!(v->tick_counter & 3)) {
03466 if (!--v->breakdown_delay) {
03467 v->breakdown_ctr = 0;
03468 InvalidateWindow(WC_VEHICLE_VIEW, v->index);
03469 }
03470 }
03471 }
03472
03474 static const uint16 _breakdown_speeds[16] = {
03475 225, 210, 195, 180, 165, 150, 135, 120, 105, 90, 75, 60, 45, 30, 15, 15
03476 };
03477
03478
03486 static bool TrainApproachingLineEnd(Vehicle *v, bool signal)
03487 {
03488
03489 uint x = v->x_pos & 0xF;
03490 uint y = v->y_pos & 0xF;
03491
03492
03493
03494 switch (v->direction) {
03495 case DIR_N : x = ~x + ~y + 25; break;
03496 case DIR_NW: x = y;
03497 case DIR_NE: x = ~x + 16; break;
03498 case DIR_E : x = ~x + y + 9; break;
03499 case DIR_SE: x = y; break;
03500 case DIR_S : x = x + y - 7; break;
03501 case DIR_W : x = ~y + x + 9; break;
03502 default: break;
03503 }
03504
03505
03506 if (!signal && x + 4 >= TILE_SIZE) {
03507
03508 v->cur_speed = 0;
03509 ReverseTrainDirection(v);
03510 return false;
03511 }
03512
03513
03514 v->vehstatus |= VS_TRAIN_SLOWING;
03515 uint16 break_speed = _breakdown_speeds[x & 0xF];
03516 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03517
03518 return true;
03519 }
03520
03521
03527 static bool TrainCanLeaveTile(const Vehicle *v)
03528 {
03529
03530 if (v->u.rail.track == TRACK_BIT_WORMHOLE || v->u.rail.track == TRACK_BIT_DEPOT) return false;
03531
03532 TileIndex tile = v->tile;
03533
03534
03535 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
03536 DiagDirection dir = GetTunnelBridgeDirection(tile);
03537 if (DiagDirToDir(dir) == v->direction) return false;
03538 }
03539
03540
03541 if (IsTileDepotType(tile, TRANSPORT_RAIL)) {
03542 DiagDirection dir = ReverseDiagDir(GetRailDepotDirection(tile));
03543 if (DiagDirToDir(dir) == v->direction) return false;
03544 }
03545
03546 return true;
03547 }
03548
03549
03557 static TileIndex TrainApproachingCrossingTile(const Vehicle *v)
03558 {
03559 assert(IsFrontEngine(v));
03560 assert(!(v->vehstatus & VS_CRASHED));
03561
03562 if (!TrainCanLeaveTile(v)) return INVALID_TILE;
03563
03564 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
03565 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03566
03567
03568 if (!IsLevelCrossingTile(tile) || DiagDirToAxis(dir) == GetCrossingRoadAxis(tile) ||
03569 !CheckCompatibleRail(v, tile)) {
03570 return INVALID_TILE;
03571 }
03572
03573 return tile;
03574 }
03575
03576
03583 static bool TrainCheckIfLineEnds(Vehicle *v)
03584 {
03585
03586
03587 int t = v->breakdown_ctr;
03588 if (t > 1) {
03589 v->vehstatus |= VS_TRAIN_SLOWING;
03590
03591 uint16 break_speed = _breakdown_speeds[GB(~t, 4, 4)];
03592 if (break_speed < v->cur_speed) v->cur_speed = break_speed;
03593 } else {
03594 v->vehstatus &= ~VS_TRAIN_SLOWING;
03595 }
03596
03597 if (!TrainCanLeaveTile(v)) return true;
03598
03599
03600 DiagDirection dir = TrainExitDir(v->direction, v->u.rail.track);
03601
03602 TileIndex tile = v->tile + TileOffsByDiagDir(dir);
03603
03604
03605 ; TrackStatus ts = GetTileTrackStatus(tile, TRANSPORT_RAIL, 0, ReverseDiagDir(dir)) & _reachable_tracks[dir];
03606 TrackdirBits trackdirbits = TrackStatusToTrackdirBits(ts);
03607 TrackdirBits red_signals = TrackStatusToRedSignals(ts);
03608
03609
03610
03611
03612 TrackBits bits = TrackdirBitsToTrackBits(trackdirbits);
03613 if (_patches.pathfinder_for_trains != VPF_NTP && _patches.forbid_90_deg) {
03614 bits &= ~TrackCrossesTracks(FindFirstTrack(v->u.rail.track));
03615 }
03616
03617
03618 if (bits == TRACK_BIT_NONE || !CheckCompatibleRail(v, tile)) {
03619 return TrainApproachingLineEnd(v, false);
03620 }
03621
03622
03623 if ((trackdirbits & red_signals) != 0) return TrainApproachingLineEnd(v, true);
03624
03625
03626 if (IsLevelCrossingTile(tile)) MaybeBarCrossingWithSound(tile);
03627
03628 return true;
03629 }
03630
03631
03632 static void TrainLocoHandler(Vehicle *v, bool mode)
03633 {
03634
03635 if (v->vehstatus & VS_CRASHED) {
03636 if (!mode) HandleCrashedTrain(v);
03637 return;
03638 }
03639
03640 if (v->u.rail.force_proceed != 0) v->u.rail.force_proceed--;
03641
03642
03643 if (v->breakdown_ctr != 0) {
03644 if (v->breakdown_ctr <= 2) {
03645 HandleBrokenTrain(v);
03646 return;
03647 }
03648 if (v->current_order.type != OT_LOADING) v->breakdown_ctr--;
03649 }
03650
03651 if (HasBit(v->u.rail.flags, VRF_REVERSING) && v->cur_speed == 0) {
03652 ReverseTrainDirection(v);
03653 }
03654
03655
03656 if (v->vehstatus & VS_STOPPED && v->cur_speed == 0) return;
03657
03658 if (ProcessTrainOrder(v)) {
03659 v->load_unload_time_rem = 0;
03660 v->cur_speed = 0;
03661 v->subspeed = 0;
03662 ReverseTrainDirection(v);
03663 return;
03664 }
03665
03666 v->HandleLoading(mode);
03667
03668 if (v->current_order.type == OT_LOADING) return;
03669
03670 if (CheckTrainStayInDepot(v)) return;
03671
03672 if (!mode) HandleLocomotiveSmokeCloud(v);
03673
03674 int j = UpdateTrainSpeed(v);
03675
03676
03677 if (v->cur_speed == 0 && v->u.rail.last_speed == 0 && v->vehstatus & VS_STOPPED) {
03678 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03679 }
03680
03681 if (j == 0) {
03682
03683 if (v->cur_speed != 0) return;
03684 } else {
03685 TrainCheckIfLineEnds(v);
03686
03687 do {
03688 TrainController(v, NULL, true);
03689 CheckTrainCollision(v);
03690 if (v->cur_speed <= 0x100)
03691 break;
03692 } while (--j != 0);
03693 }
03694
03695 SetLastSpeed(v, v->cur_speed);
03696 }
03697
03698
03699
03700 Money Train::GetRunningCost() const
03701 {
03702 Money cost = 0;
03703 const Vehicle *v = this;
03704
03705 do {
03706 const RailVehicleInfo *rvi = RailVehInfo(v->engine_type);
03707
03708 byte cost_factor = GetVehicleProperty(v, 0x0D, rvi->running_cost);
03709 if (cost_factor == 0) continue;
03710
03711
03712 if (IsMultiheaded(v)) cost_factor /= 2;
03713
03714 cost += cost_factor * GetPriceByIndex(rvi->running_cost_class);
03715 } while ((v = GetNextVehicle(v)) != NULL);
03716
03717 return cost;
03718 }
03719
03720
03721 void Train::Tick()
03722 {
03723 if (_age_cargo_skip_counter == 0) this->cargo.AgeCargo();
03724
03725 this->tick_counter++;
03726
03727 if (IsFrontEngine(this)) {
03728 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
03729 this->current_order_time++;
03730
03731 TrainLocoHandler(this, false);
03732
03733
03734 if (this->type == VEH_TRAIN && IsFrontEngine(this))
03735 TrainLocoHandler(this, true);
03736 } else if (IsFreeWagon(this) && HASBITS(this->vehstatus, VS_CRASHED)) {
03737
03738 if (++this->u.rail.crash_anim_pos >= 4400) DeleteVehicleChain(this);
03739 }
03740 }
03741
03742 #define MAX_ACCEPTABLE_DEPOT_DIST 16
03743
03744 static void CheckIfTrainNeedsService(Vehicle *v)
03745 {
03746 if (_patches.servint_trains == 0 || !v->NeedsAutomaticServicing()) return;
03747 if (v->IsInDepot()) {
03748 VehicleServiceInDepot(v);
03749 return;
03750 }
03751
03752 TrainFindDepotData tfdd = FindClosestTrainDepot(v, MAX_ACCEPTABLE_DEPOT_DIST);
03753
03754 if (tfdd.best_length == (uint)-1 || tfdd.best_length > MAX_ACCEPTABLE_DEPOT_DIST) {
03755 if (v->current_order.type == OT_GOTO_DEPOT) {
03756
03757
03758
03759 v->current_order.type = OT_DUMMY;
03760 v->current_order.flags = 0;
03761 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03762 }
03763 return;
03764 }
03765
03766 const Depot* depot = GetDepotByTile(tfdd.tile);
03767
03768 if (v->current_order.type == OT_GOTO_DEPOT &&
03769 v->current_order.dest != depot->index &&
03770 !Chance16(3, 16)) {
03771 return;
03772 }
03773
03774 v->current_order.type = OT_GOTO_DEPOT;
03775 v->current_order.flags = OFB_NON_STOP;
03776 v->current_order.dest = depot->index;
03777 v->dest_tile = tfdd.tile;
03778 InvalidateWindowWidget(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
03779 }
03780
03781 void Train::OnNewDay()
03782 {
03783 if ((++this->day_counter & 7) == 0) DecreaseVehicleValue(this);
03784
03785 if (IsFrontEngine(this)) {
03786 CheckVehicleBreakdown(this);
03787 AgeVehicle(this);
03788
03789 CheckIfTrainNeedsService(this);
03790
03791 CheckOrders(this);
03792
03793
03794 if (this->current_order.type == OT_GOTO_STATION) {
03795 TileIndex tile = GetStation(this->current_order.dest)->train_tile;
03796 if (tile != 0) this->dest_tile = tile;
03797 }
03798
03799 if (this->running_ticks != 0) {
03800
03801 CommandCost cost(EXPENSES_TRAIN_RUN, this->GetRunningCost() * this->running_ticks / (364 * DAY_TICKS));
03802
03803 this->profit_this_year -= cost.GetCost();
03804 this->running_ticks = 0;
03805
03806 SubtractMoneyFromPlayerFract(this->owner, cost);
03807
03808 InvalidateWindow(WC_VEHICLE_DETAILS, this->index);
03809 InvalidateWindowClasses(WC_TRAINS_LIST);
03810 }
03811 } else if (IsTrainEngine(this)) {
03812
03813 AgeVehicle(this);
03814 }
03815 }
03816
03817 void TrainsYearlyLoop()
03818 {
03819 Vehicle *v;
03820
03821 FOR_ALL_VEHICLES(v) {
03822 if (v->type == VEH_TRAIN && IsFrontEngine(v)) {
03823
03824 if (_patches.train_income_warn && v->owner == _local_player && v->age >= 730 && v->GetDisplayProfitThisYear() < 0) {
03825 SetDParam(1, v->GetDisplayProfitThisYear());
03826 SetDParam(0, v->unitnumber);
03827 AddNewsItem(
03828 STR_TRAIN_IS_UNPROFITABLE,
03829 NEWS_FLAGS(NM_SMALL, NF_VIEWPORT|NF_VEHICLE, NT_ADVICE, 0),
03830 v->index,
03831 0);
03832 }
03833
03834 v->profit_last_year = v->profit_this_year;
03835 v->profit_this_year = 0;
03836 InvalidateWindow(WC_VEHICLE_DETAILS, v->index);
03837 }
03838 }
03839 }
03840
03841
03842 void InitializeTrains()
03843 {
03844 _age_cargo_skip_counter = 1;
03845 }
03846
03847
03848
03849
03850
03851 void ConnectMultiheadedTrains()
03852 {
03853 Vehicle *v;
03854
03855 FOR_ALL_VEHICLES(v) {
03856 if (v->type == VEH_TRAIN) {
03857 v->u.rail.other_multiheaded_part = NULL;
03858 }
03859 }
03860
03861 FOR_ALL_VEHICLES(v) {
03862 if (v->type == VEH_TRAIN && (IsFrontEngine(v) || IsFreeWagon(v))) {
03863
03864
03865
03866
03867
03868
03869
03870
03871
03872
03873
03874
03875
03876 bool sequential_matching = IsFrontEngine(v);
03877
03878 Vehicle *u = v;
03879 BEGIN_ENUM_WAGONS(u) {
03880 if (u->u.rail.other_multiheaded_part != NULL) continue;
03881
03882 if (IsMultiheaded(u)) {
03883 if (!IsTrainEngine(u)) {
03884
03885 SetTrainEngine(u);
03886 u->spritenum--;
03887 }
03888
03889
03890 EngineID eid = u->engine_type;
03891 Vehicle *w;
03892 if (sequential_matching) {
03893 for (w = GetNextVehicle(u); w != NULL; w = GetNextVehicle(w)) {
03894 if (w->engine_type != eid || w->u.rail.other_multiheaded_part != NULL || !IsMultiheaded(w)) continue;
03895
03896
03897 if (IsTrainEngine(w)) {
03898 ClearTrainEngine(w);
03899 w->spritenum++;
03900 }
03901 break;
03902 }
03903 } else {
03904 uint stack_pos = 0;
03905 for (w = GetNextVehicle(u); w != NULL; w = GetNextVehicle(w)) {
03906 if (w->engine_type != eid || w->u.rail.other_multiheaded_part != NULL || !IsMultiheaded(w)) continue;
03907
03908 if (IsTrainEngine(w)) {
03909 stack_pos++;
03910 } else {
03911 if (stack_pos == 0) break;
03912 stack_pos--;
03913 }
03914 }
03915 }
03916
03917 if (w != NULL) {
03918 w->u.rail.other_multiheaded_part = u;
03919 u->u.rail.other_multiheaded_part = w;
03920 } else {
03921
03922 ClearMultiheaded(u);
03923 }
03924 }
03925 } END_ENUM_WAGONS(u)
03926 }
03927 }
03928 }
03929
03934 void ConvertOldMultiheadToNew()
03935 {
03936 Vehicle *v;
03937 FOR_ALL_VEHICLES(v) {
03938 if (v->type == VEH_TRAIN) {
03939 SetBit(v->subtype, 7);
03940 }
03941 }
03942
03943 FOR_ALL_VEHICLES(v) {
03944 if (v->type == VEH_TRAIN) {
03945 if (HasBit(v->subtype, 7) && ((v->subtype & ~0x80) == 0 || (v->subtype & ~0x80) == 4)) {
03946 Vehicle *u = v;
03947
03948 BEGIN_ENUM_WAGONS(u) {
03949 const RailVehicleInfo *rvi = RailVehInfo(u->engine_type);
03950
03951 ClrBit(u->subtype, 7);
03952 switch (u->subtype) {
03953 case 0:
03954 if (rvi->railveh_type == RAILVEH_MULTIHEAD) SetMultiheaded(u);
03955 SetFrontEngine(u);
03956 SetTrainEngine(u);
03957 break;
03958
03959 case 1:
03960 u->subtype = 0;
03961 SetArticulatedPart(u);
03962 break;
03963
03964 case 2:
03965 u->subtype = 0;
03966 if (rvi->railveh_type == RAILVEH_WAGON) {
03967
03968 SetTrainWagon(u);
03969 break;
03970 }
03971 if (rvi->railveh_type == RAILVEH_MULTIHEAD && rvi->image_index == u->spritenum - 1) {
03972
03973 SetMultiheaded(u);
03974 break;
03975 }
03976 if (rvi->railveh_type == RAILVEH_MULTIHEAD) SetMultiheaded(u);
03977 SetTrainEngine(u);
03978 break;
03979
03980 case 4:
03981 u->subtype = 0;
03982 SetTrainWagon(u);
03983 SetFreeWagon(u);
03984 break;
03985 default: NOT_REACHED(); break;
03986 }
03987 } END_ENUM_WAGONS(u)
03988 }
03989 }
03990 }
03991 }