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00012 #include "stdafx.h"
00013 #include "ship.h"
00014 #include "landscape.h"
00015 #include "timetable.h"
00016 #include "news_func.h"
00017 #include "company_func.h"
00018 #include "pathfinder/npf/npf_func.h"
00019 #include "depot_base.h"
00020 #include "station_base.h"
00021 #include "newgrf_engine.h"
00022 #include "pathfinder/yapf/yapf.h"
00023 #include "newgrf_sound.h"
00024 #include "spritecache.h"
00025 #include "strings_func.h"
00026 #include "window_func.h"
00027 #include "date_func.h"
00028 #include "vehicle_func.h"
00029 #include "sound_func.h"
00030 #include "ai/ai.hpp"
00031 #include "pathfinder/opf/opf_ship.h"
00032 #include "engine_base.h"
00033 #include "company_base.h"
00034 #include "tunnelbridge_map.h"
00035 #include "zoom_func.h"
00036
00037 #include "table/strings.h"
00038
00044 WaterClass GetEffectiveWaterClass(TileIndex tile)
00045 {
00046 if (HasTileWaterClass(tile)) return GetWaterClass(tile);
00047 if (IsTileType(tile, MP_TUNNELBRIDGE)) {
00048 assert(GetTunnelBridgeTransportType(tile) == TRANSPORT_WATER);
00049 return WATER_CLASS_CANAL;
00050 }
00051 if (IsTileType(tile, MP_RAILWAY)) {
00052 assert(GetRailGroundType(tile) == RAIL_GROUND_WATER);
00053 return WATER_CLASS_SEA;
00054 }
00055 NOT_REACHED();
00056 }
00057
00058 static const uint16 _ship_sprites[] = {0x0E5D, 0x0E55, 0x0E65, 0x0E6D};
00059
00060 static inline TrackBits GetTileShipTrackStatus(TileIndex tile)
00061 {
00062 return TrackStatusToTrackBits(GetTileTrackStatus(tile, TRANSPORT_WATER, 0));
00063 }
00064
00065 static SpriteID GetShipIcon(EngineID engine, EngineImageType image_type)
00066 {
00067 const Engine *e = Engine::Get(engine);
00068 uint8 spritenum = e->u.ship.image_index;
00069
00070 if (is_custom_sprite(spritenum)) {
00071 SpriteID sprite = GetCustomVehicleIcon(engine, DIR_W, image_type);
00072 if (sprite != 0) return sprite;
00073
00074 spritenum = e->original_image_index;
00075 }
00076
00077 return DIR_W + _ship_sprites[spritenum];
00078 }
00079
00080 void DrawShipEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal, EngineImageType image_type)
00081 {
00082 SpriteID sprite = GetShipIcon(engine, image_type);
00083 const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00084 preferred_x = Clamp(preferred_x, left - UnScaleByZoom(real_sprite->x_offs, ZOOM_LVL_GUI), right - UnScaleByZoom(real_sprite->width, ZOOM_LVL_GUI) - UnScaleByZoom(real_sprite->x_offs, ZOOM_LVL_GUI));
00085 DrawSprite(sprite, pal, preferred_x, y);
00086 }
00087
00094 void GetShipSpriteSize(EngineID engine, uint &width, uint &height, EngineImageType image_type)
00095 {
00096 const Sprite *spr = GetSprite(GetShipIcon(engine, image_type), ST_NORMAL);
00097
00098 width = UnScaleByZoom(spr->width, ZOOM_LVL_GUI);
00099 height = UnScaleByZoom(spr->height, ZOOM_LVL_GUI);
00100 }
00101
00102 SpriteID Ship::GetImage(Direction direction, EngineImageType image_type) const
00103 {
00104 uint8 spritenum = this->spritenum;
00105
00106 if (is_custom_sprite(spritenum)) {
00107 SpriteID sprite = GetCustomVehicleSprite(this, direction, image_type);
00108 if (sprite != 0) return sprite;
00109
00110 spritenum = this->GetEngine()->original_image_index;
00111 }
00112
00113 return _ship_sprites[spritenum] + direction;
00114 }
00115
00116 static const Depot *FindClosestShipDepot(const Vehicle *v, uint max_distance)
00117 {
00118
00119 const Depot *depot;
00120 const Depot *best_depot = NULL;
00121
00122
00123
00124
00125
00126 uint best_dist = max_distance == 0 ? UINT_MAX : max_distance + 1;
00127
00128 FOR_ALL_DEPOTS(depot) {
00129 TileIndex tile = depot->xy;
00130 if (IsShipDepotTile(tile) && IsTileOwner(tile, v->owner)) {
00131 uint dist = DistanceManhattan(tile, v->tile);
00132 if (dist < best_dist) {
00133 best_dist = dist;
00134 best_depot = depot;
00135 }
00136 }
00137 }
00138
00139 return best_depot;
00140 }
00141
00142 static void CheckIfShipNeedsService(Vehicle *v)
00143 {
00144 if (Company::Get(v->owner)->settings.vehicle.servint_ships == 0 || !v->NeedsAutomaticServicing()) return;
00145 if (v->IsInDepot()) {
00146 VehicleServiceInDepot(v);
00147 return;
00148 }
00149
00150 uint max_distance;
00151 switch (_settings_game.pf.pathfinder_for_ships) {
00152 case VPF_OPF: max_distance = 12; break;
00153 case VPF_NPF: max_distance = _settings_game.pf.npf.maximum_go_to_depot_penalty / NPF_TILE_LENGTH; break;
00154 case VPF_YAPF: max_distance = _settings_game.pf.yapf.maximum_go_to_depot_penalty / YAPF_TILE_LENGTH; break;
00155 default: NOT_REACHED();
00156 }
00157
00158 const Depot *depot = FindClosestShipDepot(v, max_distance);
00159
00160 if (depot == NULL) {
00161 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
00162 v->current_order.MakeDummy();
00163 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
00164 }
00165 return;
00166 }
00167
00168 v->current_order.MakeGoToDepot(depot->index, ODTFB_SERVICE);
00169 v->dest_tile = depot->xy;
00170 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
00171 }
00172
00176 void Ship::UpdateCache()
00177 {
00178 const ShipVehicleInfo *svi = ShipVehInfo(this->engine_type);
00179
00180
00181 bool is_ocean = GetEffectiveWaterClass(this->tile) == WATER_CLASS_SEA;
00182 uint raw_speed = GetVehicleProperty(this, PROP_SHIP_SPEED, svi->max_speed);
00183 this->vcache.cached_max_speed = svi->ApplyWaterClassSpeedFrac(raw_speed, is_ocean);
00184
00185
00186 this->vcache.cached_cargo_age_period = GetVehicleProperty(this, PROP_SHIP_CARGO_AGE_PERIOD, EngInfo(this->engine_type)->cargo_age_period);
00187
00188 this->UpdateVisualEffect();
00189 }
00190
00191 Money Ship::GetRunningCost() const
00192 {
00193 const Engine *e = this->GetEngine();
00194 uint cost_factor = GetVehicleProperty(this, PROP_SHIP_RUNNING_COST_FACTOR, e->u.ship.running_cost);
00195 return GetPrice(PR_RUNNING_SHIP, cost_factor, e->GetGRF());
00196 }
00197
00198 void Ship::OnNewDay()
00199 {
00200 if ((++this->day_counter & 7) == 0) {
00201 DecreaseVehicleValue(this);
00202 }
00203
00204 CheckVehicleBreakdown(this);
00205 AgeVehicle(this);
00206 CheckIfShipNeedsService(this);
00207
00208 CheckOrders(this);
00209
00210 if (this->running_ticks == 0) return;
00211
00212 CommandCost cost(EXPENSES_SHIP_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
00213
00214 this->profit_this_year -= cost.GetCost();
00215 this->running_ticks = 0;
00216
00217 SubtractMoneyFromCompanyFract(this->owner, cost);
00218
00219 SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00220
00221 SetWindowClassesDirty(WC_SHIPS_LIST);
00222 }
00223
00224 Trackdir Ship::GetVehicleTrackdir() const
00225 {
00226 if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
00227
00228 if (this->IsInDepot()) {
00229
00230 return DiagDirToDiagTrackdir(GetShipDepotDirection(this->tile));
00231 }
00232
00233 if (this->state == TRACK_BIT_WORMHOLE) {
00234
00235 return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
00236 }
00237
00238 return TrackDirectionToTrackdir(FindFirstTrack(this->state), this->direction);
00239 }
00240
00241 void Ship::MarkDirty()
00242 {
00243 this->UpdateViewport(false, false);
00244 this->UpdateCache();
00245 }
00246
00247 static void PlayShipSound(const Vehicle *v)
00248 {
00249 if (!PlayVehicleSound(v, VSE_START)) {
00250 SndPlayVehicleFx(ShipVehInfo(v->engine_type)->sfx, v);
00251 }
00252 }
00253
00254 void Ship::PlayLeaveStationSound() const
00255 {
00256 PlayShipSound(this);
00257 }
00258
00259 TileIndex Ship::GetOrderStationLocation(StationID station)
00260 {
00261 if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
00262
00263 const Station *st = Station::Get(station);
00264 if (st->dock_tile != INVALID_TILE) {
00265 return TILE_ADD(st->dock_tile, ToTileIndexDiff(GetDockOffset(st->dock_tile)));
00266 } else {
00267 this->IncrementRealOrderIndex();
00268 return 0;
00269 }
00270 }
00271
00272 void Ship::UpdateDeltaXY(Direction direction)
00273 {
00274 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
00275 static const uint32 _delta_xy_table[8] = {
00276 MKIT( 6, 6, -3, -3),
00277 MKIT( 6, 32, -3, -16),
00278 MKIT( 6, 6, -3, -3),
00279 MKIT(32, 6, -16, -3),
00280 MKIT( 6, 6, -3, -3),
00281 MKIT( 6, 32, -3, -16),
00282 MKIT( 6, 6, -3, -3),
00283 MKIT(32, 6, -16, -3),
00284 };
00285 #undef MKIT
00286
00287 uint32 x = _delta_xy_table[direction];
00288 this->x_offs = GB(x, 0, 8);
00289 this->y_offs = GB(x, 8, 8);
00290 this->x_extent = GB(x, 16, 8);
00291 this->y_extent = GB(x, 24, 8);
00292 this->z_extent = 6;
00293 }
00294
00295 static const TileIndexDiffC _ship_leave_depot_offs[] = {
00296 {-1, 0},
00297 { 0, -1}
00298 };
00299
00300 static bool CheckShipLeaveDepot(Ship *v)
00301 {
00302 if (!v->IsInDepot()) return false;
00303
00304
00305 if (v->current_order.IsType(OT_GOTO_DEPOT) &&
00306 IsShipDepotTile(v->tile) && GetDepotIndex(v->tile) == v->current_order.GetDestination()) {
00307 VehicleEnterDepot(v);
00308 return true;
00309 }
00310
00311 TileIndex tile = v->tile;
00312 Axis axis = GetShipDepotAxis(tile);
00313
00314
00315 if (DiagdirReachesTracks((DiagDirection)axis) & GetTileShipTrackStatus(TILE_ADD(tile, ToTileIndexDiff(_ship_leave_depot_offs[axis])))) {
00316 v->direction = ReverseDir(AxisToDirection(axis));
00317
00318 } else if (DiagdirReachesTracks((DiagDirection)(axis + 2)) & GetTileShipTrackStatus(TILE_ADD(tile, -2 * ToTileIndexDiff(_ship_leave_depot_offs[axis])))) {
00319 v->direction = AxisToDirection(axis);
00320 } else {
00321 return false;
00322 }
00323
00324 v->state = AxisToTrackBits(axis);
00325 v->vehstatus &= ~VS_HIDDEN;
00326
00327 v->cur_speed = 0;
00328 v->UpdateViewport(true, true);
00329 SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
00330
00331 PlayShipSound(v);
00332 VehicleServiceInDepot(v);
00333 InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00334 SetWindowClassesDirty(WC_SHIPS_LIST);
00335
00336 return false;
00337 }
00338
00339 static bool ShipAccelerate(Vehicle *v)
00340 {
00341 uint spd;
00342 byte t;
00343
00344 spd = min(v->cur_speed + 1, v->vcache.cached_max_speed);
00345
00346
00347 if (spd != v->cur_speed) {
00348 v->cur_speed = spd;
00349 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
00350 }
00351
00352
00353 spd = v->GetOldAdvanceSpeed(spd);
00354
00355 if (spd == 0) return false;
00356 if ((byte)++spd == 0) return true;
00357
00358 v->progress = (t = v->progress) - (byte)spd;
00359
00360 return (t < v->progress);
00361 }
00362
00368 static void ShipArrivesAt(const Vehicle *v, Station *st)
00369 {
00370
00371 if (!(st->had_vehicle_of_type & HVOT_SHIP)) {
00372 st->had_vehicle_of_type |= HVOT_SHIP;
00373
00374 SetDParam(0, st->index);
00375 AddVehicleNewsItem(
00376 STR_NEWS_FIRST_SHIP_ARRIVAL,
00377 (v->owner == _local_company) ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
00378 v->index,
00379 st->index
00380 );
00381 AI::NewEvent(v->owner, new ScriptEventStationFirstVehicle(st->index, v->index));
00382 }
00383 }
00384
00385
00391 static Track ChooseShipTrack(Ship *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks)
00392 {
00393 assert(IsValidDiagDirection(enterdir));
00394
00395 bool path_found = true;
00396 Track track;
00397 switch (_settings_game.pf.pathfinder_for_ships) {
00398 case VPF_OPF: track = OPFShipChooseTrack(v, tile, enterdir, tracks, path_found); break;
00399 case VPF_NPF: track = NPFShipChooseTrack(v, tile, enterdir, tracks, path_found); break;
00400 case VPF_YAPF: track = YapfShipChooseTrack(v, tile, enterdir, tracks, path_found); break;
00401 default: NOT_REACHED();
00402 }
00403
00404 v->HandlePathfindingResult(path_found);
00405 return track;
00406 }
00407
00408 static const Direction _new_vehicle_direction_table[] = {
00409 DIR_N , DIR_NW, DIR_W , INVALID_DIR,
00410 DIR_NE, DIR_N , DIR_SW, INVALID_DIR,
00411 DIR_E , DIR_SE, DIR_S
00412 };
00413
00414 static Direction ShipGetNewDirectionFromTiles(TileIndex new_tile, TileIndex old_tile)
00415 {
00416 uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
00417 TileX(new_tile) - TileX(old_tile) + 1;
00418 assert(offs < 11 && offs != 3 && offs != 7);
00419 return _new_vehicle_direction_table[offs];
00420 }
00421
00422 static Direction ShipGetNewDirection(Vehicle *v, int x, int y)
00423 {
00424 uint offs = (y - v->y_pos + 1) * 4 + (x - v->x_pos + 1);
00425 assert(offs < 11 && offs != 3 && offs != 7);
00426 return _new_vehicle_direction_table[offs];
00427 }
00428
00429 static inline TrackBits GetAvailShipTracks(TileIndex tile, DiagDirection dir)
00430 {
00431 return GetTileShipTrackStatus(tile) & DiagdirReachesTracks(dir);
00432 }
00433
00434 static const byte _ship_subcoord[4][6][3] = {
00435 {
00436 {15, 8, 1},
00437 { 0, 0, 0},
00438 { 0, 0, 0},
00439 {15, 8, 2},
00440 {15, 7, 0},
00441 { 0, 0, 0},
00442 },
00443 {
00444 { 0, 0, 0},
00445 { 8, 0, 3},
00446 { 7, 0, 2},
00447 { 0, 0, 0},
00448 { 8, 0, 4},
00449 { 0, 0, 0},
00450 },
00451 {
00452 { 0, 8, 5},
00453 { 0, 0, 0},
00454 { 0, 7, 6},
00455 { 0, 0, 0},
00456 { 0, 0, 0},
00457 { 0, 8, 4},
00458 },
00459 {
00460 { 0, 0, 0},
00461 { 8, 15, 7},
00462 { 0, 0, 0},
00463 { 8, 15, 6},
00464 { 0, 0, 0},
00465 { 7, 15, 0},
00466 }
00467 };
00468
00469 static void ShipController(Ship *v)
00470 {
00471 uint32 r;
00472 const byte *b;
00473 Direction dir;
00474 Track track;
00475 TrackBits tracks;
00476
00477 v->tick_counter++;
00478 v->current_order_time++;
00479
00480 if (v->HandleBreakdown()) return;
00481
00482 if (v->vehstatus & VS_STOPPED) return;
00483
00484 ProcessOrders(v);
00485 v->HandleLoading();
00486
00487 if (v->current_order.IsType(OT_LOADING)) return;
00488
00489 if (CheckShipLeaveDepot(v)) return;
00490
00491 v->ShowVisualEffect();
00492
00493 if (!ShipAccelerate(v)) return;
00494
00495 GetNewVehiclePosResult gp = GetNewVehiclePos(v);
00496 if (v->state != TRACK_BIT_WORMHOLE) {
00497
00498 if (gp.old_tile == gp.new_tile) {
00499
00500 if (v->IsInDepot()) {
00501 gp.x = v->x_pos;
00502 gp.y = v->y_pos;
00503 } else {
00504
00505 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
00506 if (HasBit(r, VETS_CANNOT_ENTER)) goto reverse_direction;
00507
00508
00509
00510 if (v->current_order.IsType(OT_LEAVESTATION)) {
00511 v->current_order.Free();
00512 SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, WID_VV_START_STOP);
00513 } else if (v->dest_tile != 0) {
00514
00515 if (v->current_order.IsType(OT_GOTO_WAYPOINT) &&
00516 DistanceManhattan(v->dest_tile, gp.new_tile) <= 3) {
00517
00518
00519 UpdateVehicleTimetable(v, true);
00520 v->IncrementRealOrderIndex();
00521 v->current_order.MakeDummy();
00522 } else {
00523
00524 if (v->dest_tile == gp.new_tile) {
00525 if (v->current_order.IsType(OT_GOTO_DEPOT)) {
00526 if ((gp.x & 0xF) == 8 && (gp.y & 0xF) == 8) {
00527 VehicleEnterDepot(v);
00528 return;
00529 }
00530 } else if (v->current_order.IsType(OT_GOTO_STATION)) {
00531 v->last_station_visited = v->current_order.GetDestination();
00532
00533
00534 Station *st = Station::Get(v->current_order.GetDestination());
00535 if (st->facilities & FACIL_DOCK) {
00536 ShipArrivesAt(v, st);
00537 v->BeginLoading();
00538 } else {
00539 v->current_order.MakeLeaveStation();
00540 v->IncrementRealOrderIndex();
00541 }
00542 }
00543 }
00544 }
00545 }
00546 }
00547 } else {
00548 DiagDirection diagdir;
00549
00550 if (TileX(gp.new_tile) >= MapMaxX() || TileY(gp.new_tile) >= MapMaxY()) {
00551 goto reverse_direction;
00552 }
00553
00554 dir = ShipGetNewDirectionFromTiles(gp.new_tile, gp.old_tile);
00555 assert(dir == DIR_NE || dir == DIR_SE || dir == DIR_SW || dir == DIR_NW);
00556 diagdir = DirToDiagDir(dir);
00557 tracks = GetAvailShipTracks(gp.new_tile, diagdir);
00558 if (tracks == TRACK_BIT_NONE) goto reverse_direction;
00559
00560
00561 track = ChooseShipTrack(v, gp.new_tile, diagdir, tracks);
00562 if (track == INVALID_TRACK) goto reverse_direction;
00563
00564 b = _ship_subcoord[diagdir][track];
00565
00566 gp.x = (gp.x & ~0xF) | b[0];
00567 gp.y = (gp.y & ~0xF) | b[1];
00568
00569
00570 r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
00571 if (HasBit(r, VETS_CANNOT_ENTER)) goto reverse_direction;
00572
00573 if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
00574 v->tile = gp.new_tile;
00575 v->state = TrackToTrackBits(track);
00576
00577
00578 WaterClass old_wc = GetEffectiveWaterClass(gp.old_tile);
00579 WaterClass new_wc = GetEffectiveWaterClass(gp.new_tile);
00580 if (old_wc != new_wc) v->UpdateCache();
00581 }
00582
00583 v->direction = (Direction)b[2];
00584 }
00585 } else {
00586
00587 if (!IsTileType(gp.new_tile, MP_TUNNELBRIDGE) || !HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
00588 v->x_pos = gp.x;
00589 v->y_pos = gp.y;
00590 VehicleUpdatePosition(v);
00591 if ((v->vehstatus & VS_HIDDEN) == 0) VehicleUpdateViewport(v, true);
00592 return;
00593 }
00594 }
00595
00596
00597 dir = ShipGetNewDirection(v, gp.x, gp.y);
00598 v->x_pos = gp.x;
00599 v->y_pos = gp.y;
00600 v->z_pos = GetSlopePixelZ(gp.x, gp.y);
00601
00602 getout:
00603 VehicleUpdatePosition(v);
00604 v->UpdateViewport(true, true);
00605 return;
00606
00607 reverse_direction:
00608 dir = ReverseDir(v->direction);
00609 v->direction = dir;
00610 goto getout;
00611 }
00612
00613 bool Ship::Tick()
00614 {
00615 if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
00616
00617 ShipController(this);
00618
00619 return true;
00620 }
00621
00631 CommandCost CmdBuildShip(TileIndex tile, DoCommandFlag flags, const Engine *e, uint16 data, Vehicle **ret)
00632 {
00633 tile = GetShipDepotNorthTile(tile);
00634 if (flags & DC_EXEC) {
00635 int x;
00636 int y;
00637
00638 const ShipVehicleInfo *svi = &e->u.ship;
00639
00640 Ship *v = new Ship();
00641 *ret = v;
00642
00643 v->owner = _current_company;
00644 v->tile = tile;
00645 x = TileX(tile) * TILE_SIZE + TILE_SIZE / 2;
00646 y = TileY(tile) * TILE_SIZE + TILE_SIZE / 2;
00647 v->x_pos = x;
00648 v->y_pos = y;
00649 v->z_pos = GetSlopePixelZ(x, y);
00650
00651 v->UpdateDeltaXY(v->direction);
00652 v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00653
00654 v->spritenum = svi->image_index;
00655 v->cargo_type = e->GetDefaultCargoType();
00656 v->cargo_cap = svi->capacity;
00657
00658 v->last_station_visited = INVALID_STATION;
00659 v->last_loading_station = INVALID_STATION;
00660 v->engine_type = e->index;
00661
00662 v->reliability = e->reliability;
00663 v->reliability_spd_dec = e->reliability_spd_dec;
00664 v->max_age = e->GetLifeLengthInDays();
00665 _new_vehicle_id = v->index;
00666
00667 v->state = TRACK_BIT_DEPOT;
00668
00669 v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_ships;
00670 v->date_of_last_service = _date;
00671 v->build_year = _cur_year;
00672 v->cur_image = SPR_IMG_QUERY;
00673 v->random_bits = VehicleRandomBits();
00674
00675 v->UpdateCache();
00676
00677 if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00678
00679 v->InvalidateNewGRFCacheOfChain();
00680
00681 v->cargo_cap = e->DetermineCapacity(v);
00682
00683 v->InvalidateNewGRFCacheOfChain();
00684
00685 VehicleUpdatePosition(v);
00686 }
00687
00688 return CommandCost();
00689 }
00690
00691 bool Ship::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
00692 {
00693 const Depot *depot = FindClosestShipDepot(this, 0);
00694
00695 if (depot == NULL) return false;
00696
00697 if (location != NULL) *location = depot->xy;
00698 if (destination != NULL) *destination = depot->index;
00699
00700 return true;
00701 }