vehicle_base.h

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00001 /* $Id$ */
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 #ifndef VEHICLE_BASE_H
00013 #define VEHICLE_BASE_H
00014 
00015 #include "core/smallmap_type.hpp"
00016 #include "track_type.h"
00017 #include "command_type.h"
00018 #include "order_base.h"
00019 #include "cargopacket.h"
00020 #include "texteff.hpp"
00021 #include "engine_type.h"
00022 #include "order_func.h"
00023 #include "transport_type.h"
00024 #include "group_type.h"
00025 #include "base_consist.h"
00026 
00028 enum VehStatus {
00029   VS_HIDDEN          = 0x01, 
00030   VS_STOPPED         = 0x02, 
00031   VS_UNCLICKABLE     = 0x04, 
00032   VS_DEFPAL          = 0x08, 
00033   VS_TRAIN_SLOWING   = 0x10, 
00034   VS_SHADOW          = 0x20, 
00035   VS_AIRCRAFT_BROKEN = 0x40, 
00036   VS_CRASHED         = 0x80, 
00037 };
00038 
00040 enum VehicleFlags {
00041   VF_LOADING_FINISHED,        
00042   VF_CARGO_UNLOADING,         
00043   VF_BUILT_AS_PROTOTYPE,      
00044   VF_TIMETABLE_STARTED,       
00045   VF_AUTOFILL_TIMETABLE,      
00046   VF_AUTOFILL_PRES_WAIT_TIME, 
00047   VF_STOP_LOADING,            
00048   VF_PATHFINDER_LOST,         
00049 };
00050 
00052 enum NewGRFCacheValidValues {
00053   NCVV_POSITION_CONSIST_LENGTH   = 0, 
00054   NCVV_POSITION_SAME_ID_LENGTH   = 1, 
00055   NCVV_CONSIST_CARGO_INFORMATION = 2, 
00056   NCVV_COMPANY_INFORMATION       = 3, 
00057   NCVV_END,                           
00058 };
00059 
00061 struct NewGRFCache {
00062   /* Values calculated when they are requested for the first time after invalidating the NewGRF cache. */
00063   uint32 position_consist_length;   
00064   uint32 position_same_id_length;   
00065   uint32 consist_cargo_information; 
00066   uint32 company_information;       
00067   uint8  cache_valid;               
00068 };
00069 
00071 enum VisualEffect {
00072   VE_OFFSET_START        = 0, 
00073   VE_OFFSET_COUNT        = 4, 
00074   VE_OFFSET_CENTRE       = 8, 
00075 
00076   VE_TYPE_START          = 4, 
00077   VE_TYPE_COUNT          = 2, 
00078   VE_TYPE_DEFAULT        = 0, 
00079   VE_TYPE_STEAM          = 1, 
00080   VE_TYPE_DIESEL         = 2, 
00081   VE_TYPE_ELECTRIC       = 3, 
00082 
00083   VE_DISABLE_EFFECT      = 6, 
00084   VE_DISABLE_WAGON_POWER = 7, 
00085 
00086   VE_DEFAULT = 0xFF,          
00087 };
00088 
00094 enum GroundVehicleSubtypeFlags {
00095   GVSF_FRONT            = 0, 
00096   GVSF_ARTICULATED_PART = 1, 
00097   GVSF_WAGON            = 2, 
00098   GVSF_ENGINE           = 3, 
00099   GVSF_FREE_WAGON       = 4, 
00100   GVSF_MULTIHEADED      = 5, 
00101 };
00102 
00104 struct VehicleCache {
00105   uint16 cached_max_speed;        
00106   uint16 cached_cargo_age_period; 
00107 
00108   byte cached_vis_effect;  
00109 };
00110 
00112 typedef Pool<Vehicle, VehicleID, 512, 0xFF000> VehiclePool;
00113 extern VehiclePool _vehicle_pool;
00114 
00115 /* Some declarations of functions, so we can make them friendly */
00116 struct SaveLoad;
00117 struct GroundVehicleCache;
00118 extern const SaveLoad *GetVehicleDescription(VehicleType vt);
00119 struct LoadgameState;
00120 extern bool LoadOldVehicle(LoadgameState *ls, int num);
00121 extern void FixOldVehicles();
00122 
00123 struct GRFFile;
00124 
00126 struct Vehicle : VehiclePool::PoolItem<&_vehicle_pool>, BaseVehicle, BaseConsist {
00127 private:
00128   Vehicle *next;                      
00129   Vehicle *previous;                  
00130   Vehicle *first;                     
00131 
00132   Vehicle *next_shared;               
00133   Vehicle *previous_shared;           
00134 
00135 public:
00136   friend const SaveLoad *GetVehicleDescription(VehicleType vt); 
00137   friend void FixOldVehicles();
00138   friend void AfterLoadVehicles(bool part_of_load);             
00139   friend bool LoadOldVehicle(LoadgameState *ls, int num);       
00140 
00141   TileIndex tile;                     
00142 
00148   TileIndex dest_tile;
00149 
00150   Money profit_this_year;             
00151   Money profit_last_year;             
00152   Money value;                        
00153 
00154   CargoPayment *cargo_payment;        
00155 
00156   Rect coord;                         
00157 
00158   Vehicle *hash_viewport_next;        
00159   Vehicle **hash_viewport_prev;       
00160 
00161   Vehicle *hash_tile_next;            
00162   Vehicle **hash_tile_prev;           
00163   Vehicle **hash_tile_current;        
00164 
00165   SpriteID colourmap;                 
00166 
00167   /* Related to age and service time */
00168   Year build_year;                    
00169   Date age;                           
00170   Date max_age;                       
00171   Date date_of_last_service;          
00172   uint16 reliability;                 
00173   uint16 reliability_spd_dec;         
00174   byte breakdown_ctr;                 
00175   byte breakdown_delay;               
00176   byte breakdowns_since_last_service; 
00177   byte breakdown_chance;              
00178 
00179   int32 x_pos;                        
00180   int32 y_pos;                        
00181   int32 z_pos;                        
00182   DirectionByte direction;            
00183 
00184   OwnerByte owner;                    
00185 
00190   byte spritenum;
00191   SpriteID cur_image;                 
00192   byte x_extent;                      
00193   byte y_extent;                      
00194   byte z_extent;                      
00195   int8 x_bb_offs;                     
00196   int8 y_bb_offs;                     
00197   int8 x_offs;                        
00198   int8 y_offs;                        
00199   EngineID engine_type;               
00200 
00201   TextEffectID fill_percent_te_id;    
00202   UnitID unitnumber;                  
00203 
00204   uint16 cur_speed;                   
00205   byte subspeed;                      
00206   byte acceleration;                  
00207   uint32 motion_counter;              
00208   byte progress;                      
00209 
00210   byte random_bits;                   
00211   byte waiting_triggers;              
00212 
00213   StationID last_station_visited;     
00214   StationID last_loading_station;     
00215 
00216   CargoID cargo_type;                 
00217   byte cargo_subtype;                 
00218   uint16 cargo_cap;                   
00219   uint16 refit_cap;                   
00220   VehicleCargoList cargo;             
00221   uint16 cargo_age_counter;           
00222 
00223   byte day_counter;                   
00224   byte tick_counter;                  
00225   byte running_ticks;                 
00226 
00227   byte vehstatus;                     
00228   Order current_order;                
00229 
00230   union {
00231     OrderList *list;            
00232     Order     *old;             
00233   } orders;                           
00234 
00235   uint16 load_unload_ticks;           
00236   GroupID group_id;                   
00237   byte subtype;                       
00238 
00239   NewGRFCache grf_cache;              
00240   VehicleCache vcache;                
00241 
00242   Vehicle(VehicleType type = VEH_INVALID);
00243 
00244   void PreDestructor();
00246   virtual ~Vehicle();
00247 
00248   void BeginLoading();
00249   void CancelReservation(StationID next, Station *st);
00250   void LeaveStation();
00251 
00252   GroundVehicleCache *GetGroundVehicleCache();
00253   const GroundVehicleCache *GetGroundVehicleCache() const;
00254 
00255   uint16 &GetGroundVehicleFlags();
00256   const uint16 &GetGroundVehicleFlags() const;
00257 
00258   void DeleteUnreachedImplicitOrders();
00259 
00260   void HandleLoading(bool mode = false);
00261 
00262   void GetConsistFreeCapacities(SmallMap<CargoID, uint> &capacities) const;
00263 
00264   uint GetConsistTotalCapacity() const;
00265 
00274   virtual void MarkDirty() {}
00275 
00281   virtual void UpdateDeltaXY(Direction direction) {}
00282 
00296   inline uint GetOldAdvanceSpeed(uint speed)
00297   {
00298     return (this->direction & 1) ? speed : speed * 3 / 4;
00299   }
00300 
00313   static inline uint GetAdvanceSpeed(uint speed)
00314   {
00315     return speed * 3 / 4;
00316   }
00317 
00325   inline uint GetAdvanceDistance()
00326   {
00327     return (this->direction & 1) ? 192 : 256;
00328   }
00329 
00334   virtual ExpensesType GetExpenseType(bool income) const { return EXPENSES_OTHER; }
00335 
00339   virtual void PlayLeaveStationSound() const {}
00340 
00344   virtual bool IsPrimaryVehicle() const { return false; }
00345 
00346   const Engine *GetEngine() const;
00347 
00353   virtual SpriteID GetImage(Direction direction, EngineImageType image_type) const { return 0; }
00354 
00355   const GRFFile *GetGRF() const;
00356   uint32 GetGRFID() const;
00357 
00362   inline void InvalidateNewGRFCache()
00363   {
00364     this->grf_cache.cache_valid = 0;
00365   }
00366 
00371   inline void InvalidateNewGRFCacheOfChain()
00372   {
00373     for (Vehicle *u = this; u != NULL; u = u->Next()) {
00374       u->InvalidateNewGRFCache();
00375     }
00376   }
00377 
00382   inline bool IsGroundVehicle() const
00383   {
00384     return this->type == VEH_TRAIN || this->type == VEH_ROAD;
00385   }
00386 
00391   virtual int GetDisplaySpeed() const { return 0; }
00392 
00397   virtual int GetDisplayMaxSpeed() const { return 0; }
00398 
00403   virtual int GetCurrentMaxSpeed() const { return 0; }
00404 
00409   virtual Money GetRunningCost() const { return 0; }
00410 
00415   virtual bool IsInDepot() const { return false; }
00416 
00421   virtual bool IsChainInDepot() const { return this->IsInDepot(); }
00422 
00427   bool IsStoppedInDepot() const
00428   {
00429     assert(this == this->First());
00430     /* Free wagons have no VS_STOPPED state */
00431     if (this->IsPrimaryVehicle() && !(this->vehstatus & VS_STOPPED)) return false;
00432     return this->IsChainInDepot();
00433   }
00434 
00439   virtual bool Tick() { return true; };
00440 
00444   virtual void OnNewDay() {};
00445 
00451   virtual uint Crash(bool flooded = false);
00452 
00465   virtual Trackdir GetVehicleTrackdir() const { return INVALID_TRACKDIR; }
00466 
00471   Money GetDisplayRunningCost() const { return (this->GetRunningCost() >> 8); }
00472 
00477   Money GetDisplayProfitThisYear() const { return (this->profit_this_year >> 8); }
00478 
00483   Money GetDisplayProfitLastYear() const { return (this->profit_last_year >> 8); }
00484 
00485   void SetNext(Vehicle *next);
00486 
00492   inline Vehicle *Next() const { return this->next; }
00493 
00499   inline Vehicle *Previous() const { return this->previous; }
00500 
00505   inline Vehicle *First() const { return this->first; }
00506 
00511   inline Vehicle *Last()
00512   {
00513     Vehicle *v = this;
00514     while (v->Next() != NULL) v = v->Next();
00515     return v;
00516   }
00517 
00522   inline const Vehicle *Last() const
00523   {
00524     const Vehicle *v = this;
00525     while (v->Next() != NULL) v = v->Next();
00526     return v;
00527   }
00528 
00534   inline Vehicle *Move(int n)
00535   {
00536     Vehicle *v = this;
00537     if (n < 0) {
00538       for (int i = 0; i != n && v != NULL; i--) v = v->Previous();
00539     } else {
00540       for (int i = 0; i != n && v != NULL; i++) v = v->Next();
00541     }
00542     return v;
00543   }
00544 
00550   inline const Vehicle *Move(int n) const
00551   {
00552     const Vehicle *v = this;
00553     if (n < 0) {
00554       for (int i = 0; i != n && v != NULL; i--) v = v->Previous();
00555     } else {
00556       for (int i = 0; i != n && v != NULL; i++) v = v->Next();
00557     }
00558     return v;
00559   }
00560 
00565   inline Order *GetFirstOrder() const { return (this->orders.list == NULL) ? NULL : this->orders.list->GetFirstOrder(); }
00566 
00567   void AddToShared(Vehicle *shared_chain);
00568   void RemoveFromShared();
00569 
00574   inline Vehicle *NextShared() const { return this->next_shared; }
00575 
00580   inline Vehicle *PreviousShared() const { return this->previous_shared; }
00581 
00586   inline Vehicle *FirstShared() const { return (this->orders.list == NULL) ? this->First() : this->orders.list->GetFirstSharedVehicle(); }
00587 
00592   inline bool IsOrderListShared() const { return this->orders.list != NULL && this->orders.list->IsShared(); }
00593 
00598   inline VehicleOrderID GetNumOrders() const { return (this->orders.list == NULL) ? 0 : this->orders.list->GetNumOrders(); }
00599 
00604   inline VehicleOrderID GetNumManualOrders() const { return (this->orders.list == NULL) ? 0 : this->orders.list->GetNumManualOrders(); }
00605 
00610   inline StationID GetNextStoppingStation() const
00611   {
00612     return (this->orders.list == NULL) ? INVALID_STATION : this->orders.list->GetNextStoppingStation(this);
00613   }
00614 
00615   void RefreshNextHopsStats();
00616 
00623   inline void CopyVehicleConfigAndStatistics(const Vehicle *src)
00624   {
00625     this->CopyConsistPropertiesFrom(src);
00626 
00627     this->unitnumber = src->unitnumber;
00628 
00629     this->current_order = src->current_order;
00630     this->dest_tile  = src->dest_tile;
00631 
00632     this->profit_this_year = src->profit_this_year;
00633     this->profit_last_year = src->profit_last_year;
00634   }
00635 
00636 
00637   bool HandleBreakdown();
00638 
00639   bool NeedsAutorenewing(const Company *c, bool use_renew_setting = true) const;
00640 
00641   bool NeedsServicing() const;
00642   bool NeedsAutomaticServicing() const;
00643 
00651   virtual TileIndex GetOrderStationLocation(StationID station) { return INVALID_TILE; }
00652 
00661   virtual bool FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse) { return false; }
00662 
00663   CommandCost SendToDepot(DoCommandFlag flags, DepotCommand command);
00664 
00665   void UpdateVisualEffect(bool allow_power_change = true);
00666   void ShowVisualEffect() const;
00667 
00668 private:
00673   void SkipToNextRealOrderIndex()
00674   {
00675     if (this->GetNumManualOrders() > 0) {
00676       /* Advance to next real order */
00677       do {
00678         this->cur_real_order_index++;
00679         if (this->cur_real_order_index >= this->GetNumOrders()) this->cur_real_order_index = 0;
00680       } while (this->GetOrder(this->cur_real_order_index)->IsType(OT_IMPLICIT));
00681     } else {
00682       this->cur_real_order_index = 0;
00683     }
00684   }
00685 
00686 public:
00692   void IncrementImplicitOrderIndex()
00693   {
00694     if (this->cur_implicit_order_index == this->cur_real_order_index) {
00695       /* Increment real order index as well */
00696       this->SkipToNextRealOrderIndex();
00697     }
00698 
00699     assert(this->cur_real_order_index == 0 || this->cur_real_order_index < this->GetNumOrders());
00700 
00701     /* Advance to next implicit order */
00702     do {
00703       this->cur_implicit_order_index++;
00704       if (this->cur_implicit_order_index >= this->GetNumOrders()) this->cur_implicit_order_index = 0;
00705     } while (this->cur_implicit_order_index != this->cur_real_order_index && !this->GetOrder(this->cur_implicit_order_index)->IsType(OT_IMPLICIT));
00706 
00707     InvalidateVehicleOrder(this, 0);
00708   }
00709 
00716   void IncrementRealOrderIndex()
00717   {
00718     if (this->cur_implicit_order_index == this->cur_real_order_index) {
00719       /* Increment both real and implicit order */
00720       this->IncrementImplicitOrderIndex();
00721     } else {
00722       /* Increment real order only */
00723       this->SkipToNextRealOrderIndex();
00724       InvalidateVehicleOrder(this, 0);
00725     }
00726   }
00727 
00731   void UpdateRealOrderIndex()
00732   {
00733     /* Make sure the index is valid */
00734     if (this->cur_real_order_index >= this->GetNumOrders()) this->cur_real_order_index = 0;
00735 
00736     if (this->GetNumManualOrders() > 0) {
00737       /* Advance to next real order */
00738       while (this->GetOrder(this->cur_real_order_index)->IsType(OT_IMPLICIT)) {
00739         this->cur_real_order_index++;
00740         if (this->cur_real_order_index >= this->GetNumOrders()) this->cur_real_order_index = 0;
00741       }
00742     } else {
00743       this->cur_real_order_index = 0;
00744     }
00745   }
00746 
00752   inline Order *GetOrder(int index) const
00753   {
00754     return (this->orders.list == NULL) ? NULL : this->orders.list->GetOrderAt(index);
00755   }
00756 
00761   inline Order *GetLastOrder() const
00762   {
00763     return (this->orders.list == NULL) ? NULL : this->orders.list->GetLastOrder();
00764   }
00765 
00766   bool IsEngineCountable() const;
00767   bool HasEngineType() const;
00768   bool HasDepotOrder() const;
00769   void HandlePathfindingResult(bool path_found);
00770 
00775   inline bool IsFrontEngine() const
00776   {
00777     return this->IsGroundVehicle() && HasBit(this->subtype, GVSF_FRONT);
00778   }
00779 
00784   inline bool IsArticulatedPart() const
00785   {
00786     return this->IsGroundVehicle() && HasBit(this->subtype, GVSF_ARTICULATED_PART);
00787   }
00788 
00793   inline bool HasArticulatedPart() const
00794   {
00795     return this->Next() != NULL && this->Next()->IsArticulatedPart();
00796   }
00797 
00803   inline Vehicle *GetNextArticulatedPart() const
00804   {
00805     assert(this->HasArticulatedPart());
00806     return this->Next();
00807   }
00808 
00813   inline Vehicle *GetFirstEnginePart()
00814   {
00815     Vehicle *v = this;
00816     while (v->IsArticulatedPart()) v = v->Previous();
00817     return v;
00818   }
00819 
00824   inline const Vehicle *GetFirstEnginePart() const
00825   {
00826     const Vehicle *v = this;
00827     while (v->IsArticulatedPart()) v = v->Previous();
00828     return v;
00829   }
00830 
00835   inline Vehicle *GetLastEnginePart()
00836   {
00837     Vehicle *v = this;
00838     while (v->HasArticulatedPart()) v = v->GetNextArticulatedPart();
00839     return v;
00840   }
00841 
00846   inline Vehicle *GetNextVehicle() const
00847   {
00848     const Vehicle *v = this;
00849     while (v->HasArticulatedPart()) v = v->GetNextArticulatedPart();
00850 
00851     /* v now contains the last articulated part in the engine */
00852     return v->Next();
00853   }
00854 
00859   inline Vehicle *GetPrevVehicle() const
00860   {
00861     Vehicle *v = this->Previous();
00862     while (v != NULL && v->IsArticulatedPart()) v = v->Previous();
00863 
00864     return v;
00865   }
00866 };
00867 
00873 #define FOR_ALL_VEHICLES_FROM(var, start) FOR_ALL_ITEMS_FROM(Vehicle, vehicle_index, var, start)
00874 
00879 #define FOR_ALL_VEHICLES(var) FOR_ALL_VEHICLES_FROM(var, 0)
00880 
00885 template <class T, VehicleType Type>
00886 struct SpecializedVehicle : public Vehicle {
00887   static const VehicleType EXPECTED_TYPE = Type; 
00888 
00889   typedef SpecializedVehicle<T, Type> SpecializedVehicleBase; 
00890 
00894   inline SpecializedVehicle<T, Type>() : Vehicle(Type) { }
00895 
00900   inline T *First() const { return (T *)this->Vehicle::First(); }
00901 
00906   inline T *Last() { return (T *)this->Vehicle::Last(); }
00907 
00912   inline const T *Last() const { return (const T *)this->Vehicle::Last(); }
00913 
00918   inline T *Next() const { return (T *)this->Vehicle::Next(); }
00919 
00924   inline T *Previous() const { return (T *)this->Vehicle::Previous(); }
00925 
00931   inline T *GetNextArticulatedPart() { return (T *)this->Vehicle::GetNextArticulatedPart(); }
00932 
00938   inline T *GetNextArticulatedPart() const { return (T *)this->Vehicle::GetNextArticulatedPart(); }
00939 
00944   inline T *GetFirstEnginePart() { return (T *)this->Vehicle::GetFirstEnginePart(); }
00945 
00950   inline const T *GetFirstEnginePart() const { return (const T *)this->Vehicle::GetFirstEnginePart(); }
00951 
00956   inline T *GetLastEnginePart() { return (T *)this->Vehicle::GetLastEnginePart(); }
00957 
00962   inline T *GetNextVehicle() const { return (T *)this->Vehicle::GetNextVehicle(); }
00963 
00968   inline T *GetPrevVehicle() const { return (T *)this->Vehicle::GetPrevVehicle(); }
00969 
00975   static inline bool IsValidID(size_t index)
00976   {
00977     return Vehicle::IsValidID(index) && Vehicle::Get(index)->type == Type;
00978   }
00979 
00984   static inline T *Get(size_t index)
00985   {
00986     return (T *)Vehicle::Get(index);
00987   }
00988 
00993   static inline T *GetIfValid(size_t index)
00994   {
00995     return IsValidID(index) ? Get(index) : NULL;
00996   }
00997 
01003   static inline T *From(Vehicle *v)
01004   {
01005     assert(v->type == Type);
01006     return (T *)v;
01007   }
01008 
01014   static inline const T *From(const Vehicle *v)
01015   {
01016     assert(v->type == Type);
01017     return (const T *)v;
01018   }
01019 
01025   inline void UpdateViewport(bool force_update, bool update_delta)
01026   {
01027     extern void VehicleUpdateViewport(Vehicle *v, bool dirty);
01028 
01029     /* Explicitly choose method to call to prevent vtable dereference -
01030      * it gives ~3% runtime improvements in games with many vehicles */
01031     if (update_delta) ((T *)this)->T::UpdateDeltaXY(this->direction);
01032     SpriteID old_image = this->cur_image;
01033     this->cur_image = ((T *)this)->T::GetImage(this->direction, EIT_ON_MAP);
01034     if (force_update || this->cur_image != old_image) VehicleUpdateViewport(this, true);
01035   }
01036 };
01037 
01043 #define FOR_ALL_VEHICLES_OF_TYPE(name, var) FOR_ALL_ITEMS_FROM(name, vehicle_index, var, 0) if (var->type == name::EXPECTED_TYPE)
01044 
01048 struct DisasterVehicle FINAL : public SpecializedVehicle<DisasterVehicle, VEH_DISASTER> {
01049   SpriteID image_override;            
01050   VehicleID big_ufo_destroyer_target; 
01051 
01053   DisasterVehicle() : SpecializedVehicleBase() {}
01055   virtual ~DisasterVehicle() {}
01056 
01057   void UpdateDeltaXY(Direction direction);
01058   bool Tick();
01059 };
01060 
01065 #define FOR_ALL_DISASTERVEHICLES(var) FOR_ALL_VEHICLES_OF_TYPE(DisasterVehicle, var)
01066 
01068 struct FreeUnitIDGenerator {
01069   bool *cache;  
01070   UnitID maxid; 
01071   UnitID curid; 
01072 
01073   FreeUnitIDGenerator(VehicleType type, CompanyID owner);
01074   UnitID NextID();
01075 
01077   ~FreeUnitIDGenerator() { free(this->cache); }
01078 };
01079 
01081 static const int32 INVALID_COORD = 0x7fffffff;
01082 
01083 #endif /* VEHICLE_BASE_H */