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
00065
00066
00067
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, bool same_length = false);
00083
00087 struct RoadVehicle FINAL : 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, EngineImageType image_type) 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 Tick();
00117 void OnNewDay();
00118 uint Crash(bool flooded = false);
00119 Trackdir GetVehicleTrackdir() const;
00120 TileIndex GetOrderStationLocation(StationID station);
00121 bool FindClosestDepot(TileIndex *location, DestinationID *destination, bool *reverse);
00122
00123 bool IsBus() const;
00124
00125 int GetCurrentMaxSpeed() const;
00126 int UpdateSpeed();
00127
00128 protected:
00129
00134 inline uint16 GetPower() const
00135 {
00136
00137 if (!this->IsArticulatedPart()) {
00138
00139 return 10 * GetVehicleProperty(this, PROP_ROADVEH_POWER, RoadVehInfo(this->engine_type)->power);
00140 }
00141 return 0;
00142 }
00143
00148 inline uint16 GetPoweredPartPower(const RoadVehicle *head) const
00149 {
00150 return 0;
00151 }
00152
00157 inline uint16 GetWeight() const
00158 {
00159 uint16 weight = (CargoSpec::Get(this->cargo_type)->weight * this->cargo.Count()) / 16;
00160
00161
00162 if (!this->IsArticulatedPart()) {
00163
00164 weight += GetVehicleProperty(this, PROP_ROADVEH_WEIGHT, RoadVehInfo(this->engine_type)->weight) / 4;
00165 }
00166
00167 return weight;
00168 }
00169
00174 inline byte GetTractiveEffort() const
00175 {
00176
00177 return GetVehicleProperty(this, PROP_ROADVEH_TRACTIVE_EFFORT, RoadVehInfo(this->engine_type)->tractive_effort);
00178 }
00179
00184 inline byte GetAirDragArea() const
00185 {
00186 return 6;
00187 }
00188
00193 inline byte GetAirDrag() const
00194 {
00195 return RoadVehInfo(this->engine_type)->air_drag;
00196 }
00197
00202 inline AccelStatus GetAccelerationStatus() const
00203 {
00204 return (this->vehstatus & VS_STOPPED) ? AS_BRAKE : AS_ACCEL;
00205 }
00206
00211 inline uint16 GetCurrentSpeed() const
00212 {
00213 return this->cur_speed / 2;
00214 }
00215
00220 inline uint32 GetRollingFriction() const
00221 {
00222
00223
00224 uint32 coeff = (this->roadtype == ROADTYPE_TRAM) ? 40 : 75;
00225
00226
00227 return coeff * (128 + this->GetCurrentSpeed()) / 128;
00228 }
00229
00234 inline int GetAccelerationType() const
00235 {
00236 return 0;
00237 }
00238
00243 inline uint32 GetSlopeSteepness() const
00244 {
00245 return _settings_game.vehicle.roadveh_slope_steepness;
00246 }
00247
00252 inline uint16 GetMaxTrackSpeed() const
00253 {
00254 return 0;
00255 }
00256
00261 inline bool TileMayHaveSlopedTrack() const
00262 {
00263 TrackStatus ts = GetTileTrackStatus(this->tile, TRANSPORT_ROAD, this->compatible_roadtypes);
00264 TrackBits trackbits = TrackStatusToTrackBits(ts);
00265
00266 return trackbits == TRACK_BIT_X || trackbits == TRACK_BIT_Y;
00267 }
00268
00276 inline bool HasToUseGetSlopePixelZ()
00277 {
00278 const RoadVehicle *rv = this->First();
00279
00280
00281
00282
00283 if (rv->state <= RVSB_TRACKDIR_MASK && IsReversingRoadTrackdir((Trackdir)rv->state)) {
00284
00285
00286 return true;
00287 }
00288
00289 while (rv != this) {
00290
00291
00292 if (this->direction != rv->direction) return true;
00293 rv = rv->Next();
00294 }
00295
00296 return false;
00297 }
00298 };
00299
00300 #define FOR_ALL_ROADVEHICLES(var) FOR_ALL_VEHICLES_OF_TYPE(RoadVehicle, var)
00301
00302 #endif