# 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 public:
    00135   friend const SaveLoad *GetVehicleDescription(VehicleType vt);
    00136   friend void FixOldVehicles();
    00137   friend void AfterLoadVehicles(bool part_of_load);
    00138   friend bool LoadOldVehicle(LoadgameState *ls, int num);
    00139
    00140   TileIndex tile;
    00141
    00147   TileIndex dest_tile;
    00148
    00149   Money profit_this_year;
    00150   Money profit_last_year;
    00151   Money value;
    00152
    00153   CargoPayment *cargo_payment;
    00154
    00155   Rect coord;
    00156
    00157   Vehicle *hash_viewport_next;
    00158   Vehicle **hash_viewport_prev;
    00159
    00160   Vehicle *hash_tile_next;
    00161   Vehicle **hash_tile_prev;
    00162   Vehicle **hash_tile_current;
    00163
    00164   SpriteID colourmap;
    00165
    00166   /* Related to age and service time */
    00167   Year build_year;
    00168   Date age;
    00169   Date max_age;
    00170   Date date_of_last_service;
    00171   uint16 reliability;
    00172   uint16 reliability_spd_dec;
    00173   byte breakdown_ctr;
    00174   byte breakdown_delay;
    00175   byte breakdowns_since_last_service;
    00176   byte breakdown_chance;
    00177
    00178   int32 x_pos;
    00179   int32 y_pos;
    00180   int32 z_pos;
    00181   DirectionByte direction;
    00182
    00183   OwnerByte owner;
    00184
    00189   byte spritenum;
    00190   SpriteID cur_image;
    00191   byte x_extent;
    00192   byte y_extent;
    00193   byte z_extent;
    00194   int8 x_bb_offs;
    00195   int8 y_bb_offs;
    00196   int8 x_offs;
    00197   int8 y_offs;
    00198   EngineID engine_type;
    00199
    00200   TextEffectID fill_percent_te_id;
    00201   UnitID unitnumber;
    00202
    00203   uint16 cur_speed;
    00204   byte subspeed;
    00205   byte acceleration;
    00206   uint32 motion_counter;
    00207   byte progress;
    00208
    00209   byte random_bits;
    00210   byte waiting_triggers;
    00211
    00212   StationID last_station_visited;
    00213   StationID last_loading_station;
    00214
    00215   CargoID cargo_type;
    00216   byte cargo_subtype;
    00217   uint16 cargo_cap;
    00218   uint16 refit_cap;
    00219   VehicleCargoList cargo;
    00220   uint16 cargo_age_counter;
    00221
    00222   byte day_counter;
    00223   byte tick_counter;
    00224   byte running_ticks;
    00225
    00226   byte vehstatus;
    00227   Order current_order;
    00228
    00229   union {
    00230     OrderList *list;
    00231     Order     *old;
    00232   } orders;
    00233
    00234   uint16 load_unload_ticks;
    00235   GroupID group_id;
    00236   byte subtype;
    00237
    00238   NewGRFCache grf_cache;
    00239   VehicleCache vcache;
    00240
    00241   Vehicle(VehicleType type = VEH_INVALID);
    00242
    00243   void PreDestructor();
    00245   virtual ~Vehicle();
    00246
    00247   void BeginLoading();
    00248   void CancelReservation(StationID next, Station *st);
    00249   void LeaveStation();
    00250
    00251   GroundVehicleCache *GetGroundVehicleCache();
    00252   const GroundVehicleCache *GetGroundVehicleCache() const;
    00253
    00254   uint16 &GetGroundVehicleFlags();
    00255   const uint16 &GetGroundVehicleFlags() const;
    00256
    00257   void DeleteUnreachedImplicitOrders();
    00258
    00259   void HandleLoading(bool mode = false);
    00260
    00261   void GetConsistFreeCapacities(SmallMap<CargoID, uint> &capacities) const;
    00262
    00263   uint GetConsistTotalCapacity() const;
    00264
    00273   virtual void MarkDirty() {}
    00274
    00280   virtual void UpdateDeltaXY(Direction direction) {}
    00281
    00295   inline uint GetOldAdvanceSpeed(uint speed)
    00296   {
    00297     return (this->direction & 1) ? speed : speed * 3 / 4;
    00298   }
    00299
    00312   static inline uint GetAdvanceSpeed(uint speed)
    00313   {
    00314     return speed * 3 / 4;
    00315   }
    00316
    00324   inline uint GetAdvanceDistance()
    00325   {
    00326     return (this->direction & 1) ? 192 : 256;
    00327   }
    00328
    00333   virtual ExpensesType GetExpenseType(bool income) const { return EXPENSES_OTHER; }
    00334
    00338   virtual void PlayLeaveStationSound() const {}
    00339
    00343   virtual bool IsPrimaryVehicle() const { return false; }
    00344
    00345   const Engine *GetEngine() const;
    00346
    00352   virtual SpriteID GetImage(Direction direction, EngineImageType image_type) const { return 0; }
    00353
    00354   const GRFFile *GetGRF() const;
    00355   uint32 GetGRFID() const;
    00356
    00361   inline void InvalidateNewGRFCache()
    00362   {
    00363     this->grf_cache.cache_valid = 0;
    00364   }
    00365
    00370   inline void InvalidateNewGRFCacheOfChain()
    00371   {
    00372     for (Vehicle *u = this; u != NULL; u = u->Next()) {
    00373       u->InvalidateNewGRFCache();
    00374     }
    00375   }
    00376
    00381   inline bool IsGroundVehicle() const
    00382   {
    00383     return this->type == VEH_TRAIN || this->type == VEH_ROAD;
    00384   }
    00385
    00390   virtual int GetDisplaySpeed() const { return 0; }
    00391
    00396   virtual int GetDisplayMaxSpeed() const { return 0; }
    00397
    00402   virtual int GetCurrentMaxSpeed() const { return 0; }
    00403
    00408   virtual Money GetRunningCost() const { return 0; }
    00409
    00414   virtual bool IsInDepot() const { return false; }
    00415
    00420   virtual bool IsChainInDepot() const { return this->IsInDepot(); }
    00421
    00426   bool IsStoppedInDepot() const
    00427   {
    00428     assert(this == this->First());
    00429     /* Free wagons have no VS_STOPPED state */
    00430     if (this->IsPrimaryVehicle() && !(this->vehstatus & VS_STOPPED)) return false;
    00431     return this->IsChainInDepot();
    00432   }
    00433
    00438   virtual bool Tick() { return true; };
    00439
    00443   virtual void OnNewDay() {};
    00444
    00450   virtual uint Crash(bool flooded = false);
    00451
    00464   virtual Trackdir GetVehicleTrackdir() const { return INVALID_TRACKDIR; }
    00465
    00470   Money GetDisplayRunningCost() const { return (this->GetRunningCost() >> 8); }
    00471
    00476   Money GetDisplayProfitThisYear() const { return (this->profit_this_year >> 8); }
    00477
    00482   Money GetDisplayProfitLastYear() const { return (this->profit_last_year >> 8); }
    00483
    00484   void SetNext(Vehicle *next);
    00485
    00491   inline Vehicle *Next() const { return this->next; }
    00492
    00498   inline Vehicle *Previous() const { return this->previous; }
    00499
    00504   inline Vehicle *First() const { return this->first; }
    00505
    00510   inline Vehicle *Last()
    00511   {
    00512     Vehicle *v = this;
    00513     while (v->Next() != NULL) v = v->Next();
    00514     return v;
    00515   }
    00516
    00521   inline const Vehicle *Last() const
    00522   {
    00523     const Vehicle *v = this;
    00524     while (v->Next() != NULL) v = v->Next();
    00525     return v;
    00526   }
    00527
    00533   inline Vehicle *Move(int n)
    00534   {
    00535     Vehicle *v = this;
    00536     if (n < 0) {
    00537       for (int i = 0; i != n && v != NULL; i--) v = v->Previous();
    00538     } else {
    00539       for (int i = 0; i != n && v != NULL; i++) v = v->Next();
    00540     }
    00541     return v;
    00542   }
    00543
    00549   inline const Vehicle *Move(int n) const
    00550   {
    00551     const Vehicle *v = this;
    00552     if (n < 0) {
    00553       for (int i = 0; i != n && v != NULL; i--) v = v->Previous();
    00554     } else {
    00555       for (int i = 0; i != n && v != NULL; i++) v = v->Next();
    00556     }
    00557     return v;
    00558   }
    00559
    00564   inline Order *GetFirstOrder() const { return (this->orders.list == NULL) ? NULL : this->orders.list->GetFirstOrder(); }
    00565
    00566   void AddToShared(Vehicle *shared_chain);
    00567   void RemoveFromShared();
    00568
    00573   inline Vehicle *NextShared() const { return this->next_shared; }
    00574
    00579   inline Vehicle *PreviousShared() const { return this->previous_shared; }
    00580
    00585   inline Vehicle *FirstShared() const { return (this->orders.list == NULL) ? this->First() : this->orders.list->GetFirstSharedVehicle(); }
    00586
    00591   inline bool IsOrderListShared() const { return this->orders.list != NULL && this->orders.list->IsShared(); }
    00592
    00597   inline VehicleOrderID GetNumOrders() const { return (this->orders.list == NULL) ? 0 : this->orders.list->GetNumOrders(); }
    00598
    00603   inline VehicleOrderID GetNumManualOrders() const { return (this->orders.list == NULL) ? 0 : this->orders.list->GetNumManualOrders(); }
    00604
    00609   inline StationID GetNextStoppingStation() const
    00610   {
    00611     return (this->orders.list == NULL) ? INVALID_STATION : this->orders.list->GetNextStoppingStation(this);
    00612   }
    00613
    00614   void RefreshNextHopsStats();
    00615
    00622   inline void CopyVehicleConfigAndStatistics(const Vehicle *src)
    00623   {
    00624     this->CopyConsistPropertiesFrom(src);
    00625
    00626     this->unitnumber = src->unitnumber;
    00627
    00628     this->current_order = src->current_order;
    00629     this->dest_tile  = src->dest_tile;
    00630
    00631     this->profit_this_year = src->profit_this_year;
    00632     this->profit_last_year = src->profit_last_year;
    00633   }
    00634
    00635
    00636   bool HandleBreakdown();
    00637
    00638   bool NeedsAutorenewing(const Company *c, bool use_renew_setting = true) const;
    00639
    00640   bool NeedsServicing() const;
    00641   bool NeedsAutomaticServicing() const;
    00642
    00650   virtual TileIndex GetOrderStationLocation(StationID station) { return INVALID_TILE; }
    00651
    00660   virtual bool FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse) { return false; }
    00661
    00662   CommandCost SendToDepot(DoCommandFlag flags, DepotCommand command);
    00663
    00664   void UpdateVisualEffect(bool allow_power_change = true);
    00665   void ShowVisualEffect() const;
    00666
    00667 private:
    00672   void SkipToNextRealOrderIndex()
    00673   {
    00674     if (this->GetNumManualOrders() > 0) {
    00675       /* Advance to next real order */
    00676       do {
    00677         this->cur_real_order_index++;
    00678         if (this->cur_real_order_index >= this->GetNumOrders()) this->cur_real_order_index = 0;
    00679       } while (this->GetOrder(this->cur_real_order_index)->IsType(OT_IMPLICIT));
    00680     } else {
    00681       this->cur_real_order_index = 0;
    00682     }
    00683   }
    00684
    00685 public:
    00691   void IncrementImplicitOrderIndex()
    00692   {
    00693     if (this->cur_implicit_order_index == this->cur_real_order_index) {
    00694       /* Increment real order index as well */
    00695       this->SkipToNextRealOrderIndex();
    00696     }
    00697
    00698     assert(this->cur_real_order_index == 0 || this->cur_real_order_index < this->GetNumOrders());
    00699
    00700     /* Advance to next implicit order */
    00701     do {
    00702       this->cur_implicit_order_index++;
    00703       if (this->cur_implicit_order_index >= this->GetNumOrders()) this->cur_implicit_order_index = 0;
    00704     } while (this->cur_implicit_order_index != this->cur_real_order_index && !this->GetOrder(this->cur_implicit_order_index)->IsType(OT_IMPLICIT));
    00705
    00706     InvalidateVehicleOrder(this, 0);
    00707   }
    00708
    00715   void IncrementRealOrderIndex()
    00716   {
    00717     if (this->cur_implicit_order_index == this->cur_real_order_index) {
    00718       /* Increment both real and implicit order */
    00719       this->IncrementImplicitOrderIndex();
    00720     } else {
    00721       /* Increment real order only */
    00722       this->SkipToNextRealOrderIndex();
    00723       InvalidateVehicleOrder(this, 0);
    00724     }
    00725   }
    00726
    00730   void UpdateRealOrderIndex()
    00731   {
    00732     /* Make sure the index is valid */
    00733     if (this->cur_real_order_index >= this->GetNumOrders()) this->cur_real_order_index = 0;
    00734
    00735     if (this->GetNumManualOrders() > 0) {
    00736       /* Advance to next real order */
    00737       while (this->GetOrder(this->cur_real_order_index)->IsType(OT_IMPLICIT)) {
    00738         this->cur_real_order_index++;
    00739         if (this->cur_real_order_index >= this->GetNumOrders()) this->cur_real_order_index = 0;
    00740       }
    00741     } else {
    00742       this->cur_real_order_index = 0;
    00743     }
    00744   }
    00745
    00751   inline Order *GetOrder(int index) const
    00752   {
    00753     return (this->orders.list == NULL) ? NULL : this->orders.list->GetOrderAt(index);
    00754   }
    00755
    00760   inline Order *GetLastOrder() const
    00761   {
    00762     return (this->orders.list == NULL) ? NULL : this->orders.list->GetLastOrder();
    00763   }
    00764
    00765   bool IsEngineCountable() const;
    00766   bool HasEngineType() const;
    00767   bool HasDepotOrder() const;
    00768   void HandlePathfindingResult(bool path_found);
    00769
    00774   inline bool IsFrontEngine() const
    00775   {
    00776     return this->IsGroundVehicle() && HasBit(this->subtype, GVSF_FRONT);
    00777   }
    00778
    00783   inline bool IsArticulatedPart() const
    00784   {
    00785     return this->IsGroundVehicle() && HasBit(this->subtype, GVSF_ARTICULATED_PART);
    00786   }
    00787
    00792   inline bool HasArticulatedPart() const
    00793   {
    00794     return this->Next() != NULL && this->Next()->IsArticulatedPart();
    00795   }
    00796
    00802   inline Vehicle *GetNextArticulatedPart() const
    00803   {
    00804     assert(this->HasArticulatedPart());
    00805     return this->Next();
    00806   }
    00807
    00812   inline Vehicle *GetFirstEnginePart()
    00813   {
    00814     Vehicle *v = this;
    00815     while (v->IsArticulatedPart()) v = v->Previous();
    00816     return v;
    00817   }
    00818
    00823   inline const Vehicle *GetFirstEnginePart() const
    00824   {
    00825     const Vehicle *v = this;
    00826     while (v->IsArticulatedPart()) v = v->Previous();
    00827     return v;
    00828   }
    00829
    00834   inline Vehicle *GetLastEnginePart()
    00835   {
    00836     Vehicle *v = this;
    00837     while (v->HasArticulatedPart()) v = v->GetNextArticulatedPart();
    00838     return v;
    00839   }
    00840
    00845   inline Vehicle *GetNextVehicle() const
    00846   {
    00847     const Vehicle *v = this;
    00848     while (v->HasArticulatedPart()) v = v->GetNextArticulatedPart();
    00849
    00850     /* v now contains the last articulated part in the engine */
    00851     return v->Next();
    00852   }
    00853
    00858   inline Vehicle *GetPrevVehicle() const
    00859   {
    00860     Vehicle *v = this->Previous();
    00861     while (v != NULL && v->IsArticulatedPart()) v = v->Previous();
    00862
    00863     return v;
    00864   }
    00865 };
    00866
    00872 #define FOR_ALL_VEHICLES_FROM(var, start) FOR_ALL_ITEMS_FROM(Vehicle, vehicle_index, var, start)
    00873
    00878 #define FOR_ALL_VEHICLES(var) FOR_ALL_VEHICLES_FROM(var, 0)
    00879
    00884 template <class T, VehicleType Type>
    00885 struct SpecializedVehicle : public Vehicle {
    00886   static const VehicleType EXPECTED_TYPE = Type;
    00887
    00888   typedef SpecializedVehicle<T, Type> SpecializedVehicleBase;
    00889
    00893   inline SpecializedVehicle<T, Type>() : Vehicle(Type) { }
    00894
    00899   inline T *First() const { return (T *)this->Vehicle::First(); }
    00900
    00905   inline T *Last() { return (T *)this->Vehicle::Last(); }
    00906
    00911   inline const T *Last() const { return (const T *)this->Vehicle::Last(); }
    00912
    00917   inline T *Next() const { return (T *)this->Vehicle::Next(); }
    00918
    00923   inline T *Previous() const { return (T *)this->Vehicle::Previous(); }
    00924
    00930   inline T *GetNextArticulatedPart() { return (T *)this->Vehicle::GetNextArticulatedPart(); }
    00931
    00937   inline T *GetNextArticulatedPart() const { return (T *)this->Vehicle::GetNextArticulatedPart(); }
    00938
    00943   inline T *GetFirstEnginePart() { return (T *)this->Vehicle::GetFirstEnginePart(); }
    00944
    00949   inline const T *GetFirstEnginePart() const { return (const T *)this->Vehicle::GetFirstEnginePart(); }
    00950
    00955   inline T *GetLastEnginePart() { return (T *)this->Vehicle::GetLastEnginePart(); }
    00956
    00961   inline T *GetNextVehicle() const { return (T *)this->Vehicle::GetNextVehicle(); }
    00962
    00967   inline T *GetPrevVehicle() const { return (T *)this->Vehicle::GetPrevVehicle(); }
    00968
    00974   static inline bool IsValidID(size_t index)
    00975   {
    00976     return Vehicle::IsValidID(index) && Vehicle::Get(index)->type == Type;
    00977   }
    00978
    00983   static inline T *Get(size_t index)
    00984   {
    00985     return (T *)Vehicle::Get(index);
    00986   }
    00987
    00992   static inline T *GetIfValid(size_t index)
    00993   {
    00994     return IsValidID(index) ? Get(index) : NULL;
    00995   }
    00996
    01002   static inline T *From(Vehicle *v)
    01003   {
    01004     assert(v->type == Type);
    01005     return (T *)v;
    01006   }
    01007
    01013   static inline const T *From(const Vehicle *v)
    01014   {
    01015     assert(v->type == Type);
    01016     return (const T *)v;
    01017   }
    01018
    01024   inline void UpdateViewport(bool force_update, bool update_delta)
    01025   {
    01026     extern void VehicleUpdateViewport(Vehicle *v, bool dirty);
    01027
    01028     /* Explicitly choose method to call to prevent vtable dereference -
    01029      * it gives ~3% runtime improvements in games with many vehicles */
    01030     if (update_delta) ((T *)this)->T::UpdateDeltaXY(this->direction);
    01031     SpriteID old_image = this->cur_image;
    01032     this->cur_image = ((T *)this)->T::GetImage(this->direction, EIT_ON_MAP);
    01033     if (force_update || this->cur_image != old_image) VehicleUpdateViewport(this, true);
    01034   }
    01035 };
    01036
    01042 #define FOR_ALL_VEHICLES_OF_TYPE(name, var) FOR_ALL_ITEMS_FROM(name, vehicle_index, var, 0) if (var->type == name::EXPECTED_TYPE)
    01043
    01047 struct DisasterVehicle FINAL : public SpecializedVehicle<DisasterVehicle, VEH_DISASTER> {
    01048   SpriteID image_override;
    01049   VehicleID big_ufo_destroyer_target;
    01050
    01052   DisasterVehicle() : SpecializedVehicleBase() {}
    01054   virtual ~DisasterVehicle() {}
    01055
    01056   void UpdateDeltaXY(Direction direction);
    01057   bool Tick();
    01058 };
    01059
    01064 #define FOR_ALL_DISASTERVEHICLES(var) FOR_ALL_VEHICLES_OF_TYPE(DisasterVehicle, var)
    01065
    01067 struct FreeUnitIDGenerator {
    01068   bool *cache;
    01069   UnitID maxid;
    01070   UnitID curid;
    01071
    01072   FreeUnitIDGenerator(VehicleType type, CompanyID owner);
    01073   UnitID NextID();
    01074
    01076   ~FreeUnitIDGenerator() { free(this->cache); }
    01077 };
    01078
    01080 static const int32 INVALID_COORD = 0x7fffffff;
    01081
    01082 #endif /* VEHICLE_BASE_H */