ship_cmd.cpp

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00001 /* $Id: ship_cmd.cpp 21511 2010-12-13 21:56:40Z rubidium $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #include "stdafx.h"
00013 #include "ship.h"
00014 #include "landscape.h"
00015 #include "timetable.h"
00016 #include "command_func.h"
00017 #include "news_func.h"
00018 #include "company_func.h"
00019 #include "pathfinder/npf/npf_func.h"
00020 #include "depot_base.h"
00021 #include "station_base.h"
00022 #include "vehicle_gui.h"
00023 #include "newgrf_engine.h"
00024 #include "pathfinder/yapf/yapf.h"
00025 #include "newgrf_sound.h"
00026 #include "spritecache.h"
00027 #include "strings_func.h"
00028 #include "functions.h"
00029 #include "window_func.h"
00030 #include "date_func.h"
00031 #include "vehicle_func.h"
00032 #include "sound_func.h"
00033 #include "ai/ai.hpp"
00034 #include "pathfinder/opf/opf_ship.h"
00035 #include "landscape_type.h"
00036 #include "engine_base.h"
00037 #include "company_base.h"
00038 
00039 #include "table/strings.h"
00040 
00041 static const uint16 _ship_sprites[] = {0x0E5D, 0x0E55, 0x0E65, 0x0E6D};
00042 
00043 static inline TrackBits GetTileShipTrackStatus(TileIndex tile)
00044 {
00045   return TrackStatusToTrackBits(GetTileTrackStatus(tile, TRANSPORT_WATER, 0));
00046 }
00047 
00048 static SpriteID GetShipIcon(EngineID engine)
00049 {
00050   const Engine *e = Engine::Get(engine);
00051   uint8 spritenum = e->u.ship.image_index;
00052 
00053   if (is_custom_sprite(spritenum)) {
00054     SpriteID sprite = GetCustomVehicleIcon(engine, DIR_W);
00055     if (sprite != 0) return sprite;
00056 
00057     spritenum = e->original_image_index;
00058   }
00059 
00060   return DIR_W + _ship_sprites[spritenum];
00061 }
00062 
00063 void DrawShipEngine(int left, int right, int preferred_x, int y, EngineID engine, PaletteID pal)
00064 {
00065   SpriteID sprite = GetShipIcon(engine);
00066   const Sprite *real_sprite = GetSprite(sprite, ST_NORMAL);
00067   preferred_x = Clamp(preferred_x, left - real_sprite->x_offs, right - real_sprite->width - real_sprite->x_offs);
00068   DrawSprite(sprite, pal, preferred_x, y);
00069 }
00070 
00077 void GetShipSpriteSize(EngineID engine, uint &width, uint &height)
00078 {
00079   const Sprite *spr = GetSprite(GetShipIcon(engine), ST_NORMAL);
00080 
00081   width  = spr->width;
00082   height = spr->height;
00083 }
00084 
00085 SpriteID Ship::GetImage(Direction direction) const
00086 {
00087   uint8 spritenum = this->spritenum;
00088 
00089   if (is_custom_sprite(spritenum)) {
00090     SpriteID sprite = GetCustomVehicleSprite(this, direction);
00091     if (sprite != 0) return sprite;
00092 
00093     spritenum = Engine::Get(this->engine_type)->original_image_index;
00094   }
00095 
00096   return _ship_sprites[spritenum] + direction;
00097 }
00098 
00099 static const Depot *FindClosestShipDepot(const Vehicle *v, uint max_distance)
00100 {
00101   /* Find the closest depot */
00102   const Depot *depot;
00103   const Depot *best_depot = NULL;
00104   /* If we don't have a maximum distance, i.e. distance = 0,
00105    * we want to find any depot so the best distance of no
00106    * depot must be more than any correct distance. On the
00107    * other hand if we have set a maximum distance, any depot
00108    * further away than max_distance can safely be ignored. */
00109   uint best_dist = max_distance == 0 ? UINT_MAX : max_distance + 1;
00110 
00111   FOR_ALL_DEPOTS(depot) {
00112     TileIndex tile = depot->xy;
00113     if (IsShipDepotTile(tile) && IsTileOwner(tile, v->owner)) {
00114       uint dist = DistanceManhattan(tile, v->tile);
00115       if (dist < best_dist) {
00116         best_dist = dist;
00117         best_depot = depot;
00118       }
00119     }
00120   }
00121 
00122   return best_depot;
00123 }
00124 
00125 static void CheckIfShipNeedsService(Vehicle *v)
00126 {
00127   if (Company::Get(v->owner)->settings.vehicle.servint_ships == 0 || !v->NeedsAutomaticServicing()) return;
00128   if (v->IsInDepot()) {
00129     VehicleServiceInDepot(v);
00130     return;
00131   }
00132 
00133   uint max_distance;
00134   switch (_settings_game.pf.pathfinder_for_ships) {
00135     case VPF_OPF:  max_distance = 12; break;
00136     case VPF_NPF:  max_distance = _settings_game.pf.npf.maximum_go_to_depot_penalty  / NPF_TILE_LENGTH;  break;
00137     case VPF_YAPF: max_distance = _settings_game.pf.yapf.maximum_go_to_depot_penalty / YAPF_TILE_LENGTH; break;
00138     default: NOT_REACHED();
00139   }
00140 
00141   const Depot *depot = FindClosestShipDepot(v, max_distance);
00142 
00143   if (depot == NULL) {
00144     if (v->current_order.IsType(OT_GOTO_DEPOT)) {
00145       v->current_order.MakeDummy();
00146       SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
00147     }
00148     return;
00149   }
00150 
00151   v->current_order.MakeGoToDepot(depot->index, ODTFB_SERVICE);
00152   v->dest_tile = depot->xy;
00153   SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
00154 }
00155 
00156 void Ship::UpdateCache()
00157 {
00158   this->vcache.cached_max_speed = GetVehicleProperty(this, PROP_SHIP_SPEED, ShipVehInfo(this->engine_type)->max_speed);
00159 
00160   this->UpdateVisualEffect();
00161 }
00162 
00163 Money Ship::GetRunningCost() const
00164 {
00165   const Engine *e = Engine::Get(this->engine_type);
00166   uint cost_factor = GetVehicleProperty(this, PROP_SHIP_RUNNING_COST_FACTOR, e->u.ship.running_cost);
00167   return GetPrice(PR_RUNNING_SHIP, cost_factor, e->grf_prop.grffile);
00168 }
00169 
00170 void Ship::OnNewDay()
00171 {
00172   if ((++this->day_counter & 7) == 0) {
00173     DecreaseVehicleValue(this);
00174   }
00175 
00176   CheckVehicleBreakdown(this);
00177   AgeVehicle(this);
00178   CheckIfShipNeedsService(this);
00179 
00180   CheckOrders(this);
00181 
00182   if (this->running_ticks == 0) return;
00183 
00184   CommandCost cost(EXPENSES_SHIP_RUN, this->GetRunningCost() * this->running_ticks / (DAYS_IN_YEAR * DAY_TICKS));
00185 
00186   this->profit_this_year -= cost.GetCost();
00187   this->running_ticks = 0;
00188 
00189   SubtractMoneyFromCompanyFract(this->owner, cost);
00190 
00191   SetWindowDirty(WC_VEHICLE_DETAILS, this->index);
00192   /* we need this for the profit */
00193   SetWindowClassesDirty(WC_SHIPS_LIST);
00194 }
00195 
00196 Trackdir Ship::GetVehicleTrackdir() const
00197 {
00198   if (this->vehstatus & VS_CRASHED) return INVALID_TRACKDIR;
00199 
00200   if (this->IsInDepot()) {
00201     /* We'll assume the ship is facing outwards */
00202     return DiagDirToDiagTrackdir(GetShipDepotDirection(this->tile));
00203   }
00204 
00205   if (this->state == TRACK_BIT_WORMHOLE) {
00206     /* ship on aqueduct, so just use his direction and assume a diagonal track */
00207     return DiagDirToDiagTrackdir(DirToDiagDir(this->direction));
00208   }
00209 
00210   return TrackDirectionToTrackdir(FindFirstTrack(this->state), this->direction);
00211 }
00212 
00213 void Ship::MarkDirty()
00214 {
00215   this->UpdateViewport(false, false);
00216   this->UpdateCache();
00217 }
00218 
00219 static void PlayShipSound(const Vehicle *v)
00220 {
00221   if (!PlayVehicleSound(v, VSE_START)) {
00222     SndPlayVehicleFx(ShipVehInfo(v->engine_type)->sfx, v);
00223   }
00224 }
00225 
00226 void Ship::PlayLeaveStationSound() const
00227 {
00228   PlayShipSound(this);
00229 }
00230 
00231 TileIndex Ship::GetOrderStationLocation(StationID station)
00232 {
00233   if (station == this->last_station_visited) this->last_station_visited = INVALID_STATION;
00234 
00235   const Station *st = Station::Get(station);
00236   if (st->dock_tile != INVALID_TILE) {
00237     return TILE_ADD(st->dock_tile, ToTileIndexDiff(GetDockOffset(st->dock_tile)));
00238   } else {
00239     this->IncrementOrderIndex();
00240     return 0;
00241   }
00242 }
00243 
00244 void Ship::UpdateDeltaXY(Direction direction)
00245 {
00246 #define MKIT(a, b, c, d) ((a & 0xFF) << 24) | ((b & 0xFF) << 16) | ((c & 0xFF) << 8) | ((d & 0xFF) << 0)
00247   static const uint32 _delta_xy_table[8] = {
00248     MKIT( 6,  6,  -3,  -3),
00249     MKIT( 6, 32,  -3, -16),
00250     MKIT( 6,  6,  -3,  -3),
00251     MKIT(32,  6, -16,  -3),
00252     MKIT( 6,  6,  -3,  -3),
00253     MKIT( 6, 32,  -3, -16),
00254     MKIT( 6,  6,  -3,  -3),
00255     MKIT(32,  6, -16,  -3),
00256   };
00257 #undef MKIT
00258 
00259   uint32 x = _delta_xy_table[direction];
00260   this->x_offs        = GB(x,  0, 8);
00261   this->y_offs        = GB(x,  8, 8);
00262   this->x_extent      = GB(x, 16, 8);
00263   this->y_extent      = GB(x, 24, 8);
00264   this->z_extent      = 6;
00265 }
00266 
00267 static const TileIndexDiffC _ship_leave_depot_offs[] = {
00268   {-1,  0},
00269   { 0, -1}
00270 };
00271 
00272 static void CheckShipLeaveDepot(Ship *v)
00273 {
00274   if (!v->IsInDepot()) return;
00275 
00276   TileIndex tile = v->tile;
00277   Axis axis = GetShipDepotAxis(tile);
00278 
00279   /* Check first (north) side */
00280   if (DiagdirReachesTracks((DiagDirection)axis) & GetTileShipTrackStatus(TILE_ADD(tile, ToTileIndexDiff(_ship_leave_depot_offs[axis])))) {
00281     v->direction = ReverseDir(AxisToDirection(axis));
00282   /* Check second (south) side */
00283   } else if (DiagdirReachesTracks((DiagDirection)(axis + 2)) & GetTileShipTrackStatus(TILE_ADD(tile, -2 * ToTileIndexDiff(_ship_leave_depot_offs[axis])))) {
00284     v->direction = AxisToDirection(axis);
00285   } else {
00286     return;
00287   }
00288 
00289   v->state = AxisToTrackBits(axis);
00290   v->vehstatus &= ~VS_HIDDEN;
00291 
00292   v->cur_speed = 0;
00293   v->UpdateViewport(false, true);
00294   SetWindowDirty(WC_VEHICLE_DEPOT, v->tile);
00295 
00296   PlayShipSound(v);
00297   VehicleServiceInDepot(v);
00298   InvalidateWindowData(WC_VEHICLE_DEPOT, v->tile);
00299   SetWindowClassesDirty(WC_SHIPS_LIST);
00300 }
00301 
00302 static bool ShipAccelerate(Vehicle *v)
00303 {
00304   uint spd;
00305   byte t;
00306 
00307   spd = min(v->cur_speed + 1, v->vcache.cached_max_speed);
00308 
00309   /* updates statusbar only if speed have changed to save CPU time */
00310   if (spd != v->cur_speed) {
00311     v->cur_speed = spd;
00312     if (_settings_client.gui.vehicle_speed) {
00313       SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
00314     }
00315   }
00316 
00317   /* Convert direction-indepenent speed into direction-dependent speed. (old movement method) */
00318   spd = v->GetOldAdvanceSpeed(spd);
00319 
00320   if (spd == 0) return false;
00321   if ((byte)++spd == 0) return true;
00322 
00323   v->progress = (t = v->progress) - (byte)spd;
00324 
00325   return (t < v->progress);
00326 }
00327 
00333 static void ShipArrivesAt(const Vehicle *v, Station *st)
00334 {
00335   /* Check if station was ever visited before */
00336   if (!(st->had_vehicle_of_type & HVOT_SHIP)) {
00337     st->had_vehicle_of_type |= HVOT_SHIP;
00338 
00339     SetDParam(0, st->index);
00340     AddVehicleNewsItem(
00341       STR_NEWS_FIRST_SHIP_ARRIVAL,
00342       (v->owner == _local_company) ? NS_ARRIVAL_COMPANY : NS_ARRIVAL_OTHER,
00343       v->index,
00344       st->index
00345     );
00346     AI::NewEvent(v->owner, new AIEventStationFirstVehicle(st->index, v->index));
00347   }
00348 }
00349 
00350 
00356 static Track ChooseShipTrack(Ship *v, TileIndex tile, DiagDirection enterdir, TrackBits tracks)
00357 {
00358   assert(IsValidDiagDirection(enterdir));
00359 
00360   bool path_found = true;
00361   Track track;
00362   switch (_settings_game.pf.pathfinder_for_ships) {
00363     case VPF_OPF: track = OPFShipChooseTrack(v, tile, enterdir, tracks, path_found); break;
00364     case VPF_NPF: track = NPFShipChooseTrack(v, tile, enterdir, tracks, path_found); break;
00365     case VPF_YAPF: track = YapfShipChooseTrack(v, tile, enterdir, tracks, path_found); break;
00366     default: NOT_REACHED();
00367   }
00368 
00369   v->HandlePathfindingResult(path_found);
00370   return track;
00371 }
00372 
00373 static const Direction _new_vehicle_direction_table[] = {
00374   DIR_N , DIR_NW, DIR_W , INVALID_DIR,
00375   DIR_NE, DIR_N , DIR_SW, INVALID_DIR,
00376   DIR_E , DIR_SE, DIR_S
00377 };
00378 
00379 static Direction ShipGetNewDirectionFromTiles(TileIndex new_tile, TileIndex old_tile)
00380 {
00381   uint offs = (TileY(new_tile) - TileY(old_tile) + 1) * 4 +
00382               TileX(new_tile) - TileX(old_tile) + 1;
00383   assert(offs < 11 && offs != 3 && offs != 7);
00384   return _new_vehicle_direction_table[offs];
00385 }
00386 
00387 static Direction ShipGetNewDirection(Vehicle *v, int x, int y)
00388 {
00389   uint offs = (y - v->y_pos + 1) * 4 + (x - v->x_pos + 1);
00390   assert(offs < 11 && offs != 3 && offs != 7);
00391   return _new_vehicle_direction_table[offs];
00392 }
00393 
00394 static inline TrackBits GetAvailShipTracks(TileIndex tile, DiagDirection dir)
00395 {
00396   return GetTileShipTrackStatus(tile) & DiagdirReachesTracks(dir);
00397 }
00398 
00399 static const byte _ship_subcoord[4][6][3] = {
00400   {
00401     {15, 8, 1},
00402     { 0, 0, 0},
00403     { 0, 0, 0},
00404     {15, 8, 2},
00405     {15, 7, 0},
00406     { 0, 0, 0},
00407   },
00408   {
00409     { 0, 0, 0},
00410     { 8, 0, 3},
00411     { 7, 0, 2},
00412     { 0, 0, 0},
00413     { 8, 0, 4},
00414     { 0, 0, 0},
00415   },
00416   {
00417     { 0, 8, 5},
00418     { 0, 0, 0},
00419     { 0, 7, 6},
00420     { 0, 0, 0},
00421     { 0, 0, 0},
00422     { 0, 8, 4},
00423   },
00424   {
00425     { 0, 0, 0},
00426     { 8, 15, 7},
00427     { 0, 0, 0},
00428     { 8, 15, 6},
00429     { 0, 0, 0},
00430     { 7, 15, 0},
00431   }
00432 };
00433 
00434 static void ShipController(Ship *v)
00435 {
00436   uint32 r;
00437   const byte *b;
00438   Direction dir;
00439   Track track;
00440   TrackBits tracks;
00441 
00442   v->tick_counter++;
00443   v->current_order_time++;
00444 
00445   if (v->HandleBreakdown()) return;
00446 
00447   if (v->vehstatus & VS_STOPPED) return;
00448 
00449   ProcessOrders(v);
00450   v->HandleLoading();
00451 
00452   if (v->current_order.IsType(OT_LOADING)) return;
00453 
00454   CheckShipLeaveDepot(v);
00455 
00456   v->ShowVisualEffect();
00457 
00458   if (!ShipAccelerate(v)) return;
00459 
00460   GetNewVehiclePosResult gp = GetNewVehiclePos(v);
00461   if (v->state != TRACK_BIT_WORMHOLE) {
00462     /* Not on a bridge */
00463     if (gp.old_tile == gp.new_tile) {
00464       /* Staying in tile */
00465       if (v->IsInDepot()) {
00466         gp.x = v->x_pos;
00467         gp.y = v->y_pos;
00468       } else {
00469         /* Not inside depot */
00470         r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
00471         if (HasBit(r, VETS_CANNOT_ENTER)) goto reverse_direction;
00472 
00473         /* A leave station order only needs one tick to get processed, so we can
00474          * always skip ahead. */
00475         if (v->current_order.IsType(OT_LEAVESTATION)) {
00476           v->current_order.Free();
00477           SetWindowWidgetDirty(WC_VEHICLE_VIEW, v->index, VVW_WIDGET_START_STOP_VEH);
00478         } else if (v->dest_tile != 0) {
00479           /* We have a target, let's see if we reached it... */
00480           if (v->current_order.IsType(OT_GOTO_WAYPOINT) &&
00481               DistanceManhattan(v->dest_tile, gp.new_tile) <= 3) {
00482             /* We got within 3 tiles of our target buoy, so let's skip to our
00483              * next order */
00484             UpdateVehicleTimetable(v, true);
00485             v->IncrementOrderIndex();
00486             v->current_order.MakeDummy();
00487           } else {
00488             /* Non-buoy orders really need to reach the tile */
00489             if (v->dest_tile == gp.new_tile) {
00490               if (v->current_order.IsType(OT_GOTO_DEPOT)) {
00491                 if ((gp.x & 0xF) == 8 && (gp.y & 0xF) == 8) {
00492                   VehicleEnterDepot(v);
00493                   return;
00494                 }
00495               } else if (v->current_order.IsType(OT_GOTO_STATION)) {
00496                 v->last_station_visited = v->current_order.GetDestination();
00497 
00498                 /* Process station in the orderlist. */
00499                 Station *st = Station::Get(v->current_order.GetDestination());
00500                 if (st->facilities & FACIL_DOCK) { // ugly, ugly workaround for problem with ships able to drop off cargo at wrong stations
00501                   ShipArrivesAt(v, st);
00502                   v->BeginLoading();
00503                 } else { // leave stations without docks right aways
00504                   v->current_order.MakeLeaveStation();
00505                   v->IncrementOrderIndex();
00506                 }
00507               }
00508             }
00509           }
00510         }
00511       }
00512     } else {
00513       DiagDirection diagdir;
00514       /* New tile */
00515       if (TileX(gp.new_tile) >= MapMaxX() || TileY(gp.new_tile) >= MapMaxY()) {
00516         goto reverse_direction;
00517       }
00518 
00519       dir = ShipGetNewDirectionFromTiles(gp.new_tile, gp.old_tile);
00520       assert(dir == DIR_NE || dir == DIR_SE || dir == DIR_SW || dir == DIR_NW);
00521       diagdir = DirToDiagDir(dir);
00522       tracks = GetAvailShipTracks(gp.new_tile, diagdir);
00523       if (tracks == TRACK_BIT_NONE) goto reverse_direction;
00524 
00525       /* Choose a direction, and continue if we find one */
00526       track = ChooseShipTrack(v, gp.new_tile, diagdir, tracks);
00527       if (track == INVALID_TRACK) goto reverse_direction;
00528 
00529       b = _ship_subcoord[diagdir][track];
00530 
00531       gp.x = (gp.x & ~0xF) | b[0];
00532       gp.y = (gp.y & ~0xF) | b[1];
00533 
00534       /* Call the landscape function and tell it that the vehicle entered the tile */
00535       r = VehicleEnterTile(v, gp.new_tile, gp.x, gp.y);
00536       if (HasBit(r, VETS_CANNOT_ENTER)) goto reverse_direction;
00537 
00538       if (!HasBit(r, VETS_ENTERED_WORMHOLE)) {
00539         v->tile = gp.new_tile;
00540         v->state = TrackToTrackBits(track);
00541       }
00542 
00543       v->direction = (Direction)b[2];
00544     }
00545   } else {
00546     /* On a bridge */
00547     if (!IsTileType(gp.new_tile, MP_TUNNELBRIDGE) || !HasBit(VehicleEnterTile(v, gp.new_tile, gp.x, gp.y), VETS_ENTERED_WORMHOLE)) {
00548       v->x_pos = gp.x;
00549       v->y_pos = gp.y;
00550       VehicleMove(v, !(v->vehstatus & VS_HIDDEN));
00551       return;
00552     }
00553   }
00554 
00555   /* update image of ship, as well as delta XY */
00556   dir = ShipGetNewDirection(v, gp.x, gp.y);
00557   v->x_pos = gp.x;
00558   v->y_pos = gp.y;
00559   v->z_pos = GetSlopeZ(gp.x, gp.y);
00560 
00561 getout:
00562   v->UpdateViewport(true, true);
00563   return;
00564 
00565 reverse_direction:
00566   dir = ReverseDir(v->direction);
00567   v->direction = dir;
00568   goto getout;
00569 }
00570 
00571 bool Ship::Tick()
00572 {
00573   if (!(this->vehstatus & VS_STOPPED)) this->running_ticks++;
00574 
00575   ShipController(this);
00576 
00577   return true;
00578 }
00579 
00589 CommandCost CmdBuildShip(TileIndex tile, DoCommandFlag flags, const Engine *e, uint16 data, Vehicle **ret)
00590 {
00591   tile = GetShipDepotNorthTile(tile);
00592   if (flags & DC_EXEC) {
00593     int x;
00594     int y;
00595 
00596     const ShipVehicleInfo *svi = &e->u.ship;
00597 
00598     Ship *v = new Ship();
00599     *ret = v;
00600 
00601     v->owner = _current_company;
00602     v->tile = tile;
00603     x = TileX(tile) * TILE_SIZE + TILE_SIZE / 2;
00604     y = TileY(tile) * TILE_SIZE + TILE_SIZE / 2;
00605     v->x_pos = x;
00606     v->y_pos = y;
00607     v->z_pos = GetSlopeZ(x, y);
00608 
00609     v->UpdateDeltaXY(v->direction);
00610     v->vehstatus = VS_HIDDEN | VS_STOPPED | VS_DEFPAL;
00611 
00612     v->spritenum = svi->image_index;
00613     v->cargo_type = e->GetDefaultCargoType();
00614     v->cargo_cap = svi->capacity;
00615 
00616     v->last_station_visited = INVALID_STATION;
00617     v->engine_type = e->index;
00618 
00619     v->reliability = e->reliability;
00620     v->reliability_spd_dec = e->reliability_spd_dec;
00621     v->max_age = e->GetLifeLengthInDays();
00622     _new_vehicle_id = v->index;
00623 
00624     v->state = TRACK_BIT_DEPOT;
00625 
00626     v->service_interval = Company::Get(_current_company)->settings.vehicle.servint_ships;
00627     v->date_of_last_service = _date;
00628     v->build_year = _cur_year;
00629     v->cur_image = SPR_IMG_QUERY;
00630     v->random_bits = VehicleRandomBits();
00631 
00632     v->UpdateCache();
00633 
00634     if (e->flags & ENGINE_EXCLUSIVE_PREVIEW) SetBit(v->vehicle_flags, VF_BUILT_AS_PROTOTYPE);
00635 
00636     v->InvalidateNewGRFCacheOfChain();
00637 
00638     v->cargo_cap = GetVehicleCapacity(v);
00639 
00640     v->InvalidateNewGRFCacheOfChain();
00641 
00642     VehicleMove(v, false);
00643   }
00644 
00645   return CommandCost();
00646 }
00647 
00648 bool Ship::FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse)
00649 {
00650   const Depot *depot = FindClosestShipDepot(this, 0);
00651 
00652   if (depot == NULL) return false;
00653 
00654   if (location    != NULL) *location    = depot->xy;
00655   if (destination != NULL) *destination = depot->index;
00656 
00657   return true;
00658 }

Generated on Fri Dec 31 17:15:38 2010 for OpenTTD by  doxygen 1.6.1