Go to the documentation of this file.00001
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00012 #ifndef ROADVEH_H
00013 #define ROADVEH_H
00014
00015 #include "ground_vehicle.hpp"
00016 #include "engine_base.h"
00017 #include "cargotype.h"
00018 #include "track_func.h"
00019 #include "road_type.h"
00020 #include "newgrf_engine.h"
00021
00022 struct RoadVehicle;
00023
00025 enum RoadVehicleStates {
00026
00027
00028
00029
00030
00031
00032
00033
00034
00035
00036
00037
00038
00039 RVSB_IN_DEPOT = 0xFE,
00040 RVSB_WORMHOLE = 0xFF,
00041
00042
00043 RVS_USING_SECOND_BAY = 1,
00044 RVS_ENTERED_STOP = 2,
00045 RVS_DRIVE_SIDE = 4,
00046 RVS_IN_ROAD_STOP = 5,
00047 RVS_IN_DT_ROAD_STOP = 6,
00048
00049
00050 RVSB_IN_ROAD_STOP = 1 << RVS_IN_ROAD_STOP,
00051 RVSB_IN_ROAD_STOP_END = RVSB_IN_ROAD_STOP + TRACKDIR_END,
00052 RVSB_IN_DT_ROAD_STOP = 1 << RVS_IN_DT_ROAD_STOP,
00053 RVSB_IN_DT_ROAD_STOP_END = RVSB_IN_DT_ROAD_STOP + TRACKDIR_END,
00054
00055 RVSB_DRIVE_SIDE = 1 << RVS_DRIVE_SIDE,
00056
00057 RVSB_TRACKDIR_MASK = 0x0F,
00058 RVSB_ROAD_STOP_TRACKDIR_MASK = 0x09
00059 };
00060
00062 static const uint RDE_NEXT_TILE = 0x80;
00063 static const uint RDE_TURNED = 0x40;
00064
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00068
00069
00070 static const uint RVC_DEFAULT_START_FRAME = 0;
00071 static const uint RVC_TURN_AROUND_START_FRAME = 1;
00072 static const uint RVC_DEPOT_START_FRAME = 6;
00073 static const uint RVC_START_FRAME_AFTER_LONG_TRAM = 21;
00074 static const uint RVC_TURN_AROUND_START_FRAME_SHORT_TRAM = 16;
00075
00076 static const uint RVC_DRIVE_THROUGH_STOP_FRAME = 11;
00077 static const uint RVC_DEPOT_STOP_FRAME = 11;
00078
00080 static const byte RV_OVERTAKE_TIMEOUT = 35;
00081
00082 void RoadVehUpdateCache(RoadVehicle *v);
00083
00087 struct RoadVehicle : public GroundVehicle<RoadVehicle, VEH_ROAD> {
00088 byte state;
00089 byte frame;
00090 uint16 blocked_ctr;
00091 byte overtaking;
00092 byte overtaking_ctr;
00093 uint16 crashed_ctr;
00094 byte reverse_ctr;
00095
00096 RoadType roadtype;
00097 RoadTypes compatible_roadtypes;
00098
00100 RoadVehicle() : GroundVehicleBase() {}
00102 virtual ~RoadVehicle() { this->PreDestructor(); }
00103
00104 friend struct GroundVehicle<RoadVehicle, VEH_ROAD>;
00105
00106 void MarkDirty();
00107 void UpdateDeltaXY(Direction direction);
00108 ExpensesType GetExpenseType(bool income) const { return income ? EXPENSES_ROADVEH_INC : EXPENSES_ROADVEH_RUN; }
00109 bool IsPrimaryVehicle() const { return this->IsFrontEngine(); }
00110 SpriteID GetImage(Direction direction) const;
00111 int GetDisplaySpeed() const { return this->gcache.last_speed / 2; }
00112 int GetDisplayMaxSpeed() const { return this->vcache.cached_max_speed / 2; }
00113 Money GetRunningCost() const;
00114 int GetDisplayImageWidth(Point *offset = NULL) const;
00115 bool IsInDepot() const { return this->state == RVSB_IN_DEPOT; }
00116 bool IsStoppedInDepot() const;
00117 bool Tick();
00118 void OnNewDay();
00119 uint Crash(bool flooded = false);
00120 Trackdir GetVehicleTrackdir() const;
00121 TileIndex GetOrderStationLocation(StationID station);
00122 bool FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse);
00123
00124 bool IsBus() const;
00125
00126 int GetCurrentMaxSpeed() const;
00127 int UpdateSpeed();
00128
00129 protected:
00130
00135 FORCEINLINE uint16 GetPower() const
00136 {
00137
00138 if (!this->IsArticulatedPart()) {
00139
00140 return 10 * GetVehicleProperty(this, PROP_ROADVEH_POWER, RoadVehInfo(this->engine_type)->power);
00141 }
00142 return 0;
00143 }
00144
00149 FORCEINLINE uint16 GetPoweredPartPower(const RoadVehicle *head) const
00150 {
00151 return 0;
00152 }
00153
00158 FORCEINLINE uint16 GetWeight() const
00159 {
00160 uint16 weight = (CargoSpec::Get(this->cargo_type)->weight * this->cargo.Count()) / 16;
00161
00162
00163 if (!this->IsArticulatedPart()) {
00164
00165 weight += GetVehicleProperty(this, PROP_ROADVEH_WEIGHT, RoadVehInfo(this->engine_type)->weight) / 4;
00166
00167 if (!weight) weight = 1;
00168 }
00169
00170 return weight;
00171 }
00172
00177 FORCEINLINE byte GetTractiveEffort() const
00178 {
00179
00180 return GetVehicleProperty(this, PROP_ROADVEH_TRACTIVE_EFFORT, RoadVehInfo(this->engine_type)->tractive_effort);
00181 }
00182
00187 FORCEINLINE byte GetAirDragArea() const
00188 {
00189 return 6;
00190 }
00191
00196 FORCEINLINE byte GetAirDrag() const
00197 {
00198 return RoadVehInfo(this->engine_type)->air_drag;
00199 }
00200
00205 FORCEINLINE AccelStatus GetAccelerationStatus() const
00206 {
00207 return (this->vehstatus & VS_STOPPED) ? AS_BRAKE : AS_ACCEL;
00208 }
00209
00214 FORCEINLINE uint16 GetCurrentSpeed() const
00215 {
00216 return this->cur_speed / 2;
00217 }
00218
00223 FORCEINLINE uint32 GetRollingFriction() const
00224 {
00225
00226
00227 uint32 coeff = (this->roadtype == ROADTYPE_TRAM) ? 40 : 75;
00228
00229
00230 return coeff * (128 + this->GetCurrentSpeed()) / 128;
00231 }
00232
00237 FORCEINLINE int GetAccelerationType() const
00238 {
00239 return 0;
00240 }
00241
00246 FORCEINLINE uint32 GetSlopeSteepness() const
00247 {
00248 return _settings_game.vehicle.roadveh_slope_steepness;
00249 }
00250
00255 FORCEINLINE uint16 GetMaxTrackSpeed() const
00256 {
00257 return 0;
00258 }
00259
00264 FORCEINLINE bool TileMayHaveSlopedTrack() const
00265 {
00266 TrackStatus ts = GetTileTrackStatus(this->tile, TRANSPORT_ROAD, this->compatible_roadtypes);
00267 TrackBits trackbits = TrackStatusToTrackBits(ts);
00268
00269 return trackbits == TRACK_BIT_X || trackbits == TRACK_BIT_Y;
00270 }
00271 };
00272
00273 #define FOR_ALL_ROADVEHICLES(var) FOR_ALL_VEHICLES_OF_TYPE(RoadVehicle, var)
00274
00275 #endif