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00015 #ifndef NEWGRF_COMMONS_H
00016 #define NEWGRF_COMMONS_H
00017
00018 #include "tile_type.h"
00019
00021 enum TileContext {
00022 TCX_NORMAL,
00023 TCX_UPPER_HALFTILE,
00024 TCX_ON_BRIDGE,
00025 };
00026
00039 struct EntityIDMapping {
00040 uint32 grfid;
00041 uint8 entity_id;
00042 uint8 substitute_id;
00043 };
00044
00045 class OverrideManagerBase {
00046 protected:
00047 uint16 *entity_overrides;
00048 uint32 *grfid_overrides;
00049
00050 uint16 max_offset;
00051 uint16 max_new_entities;
00052
00053 uint16 invalid_ID;
00054 virtual bool CheckValidNewID(uint16 testid) { return true; }
00055
00056 public:
00057 EntityIDMapping *mapping_ID;
00058
00059 OverrideManagerBase(uint16 offset, uint16 maximum, uint16 invalid);
00060 virtual ~OverrideManagerBase();
00061
00062 void ResetOverride();
00063 void ResetMapping();
00064
00065 void Add(uint8 local_id, uint32 grfid, uint entity_type);
00066 virtual uint16 AddEntityID(byte grf_local_id, uint32 grfid, byte substitute_id);
00067
00068 uint16 GetSubstituteID(uint16 entity_id) const;
00069 virtual uint16 GetID(uint8 grf_local_id, uint32 grfid) const;
00070
00071 inline uint16 GetMaxMapping() const { return max_new_entities; }
00072 inline uint16 GetMaxOffset() const { return max_offset; }
00073 };
00074
00075
00076 struct HouseSpec;
00077 class HouseOverrideManager : public OverrideManagerBase {
00078 public:
00079 HouseOverrideManager(uint16 offset, uint16 maximum, uint16 invalid) :
00080 OverrideManagerBase(offset, maximum, invalid) {}
00081 void SetEntitySpec(const HouseSpec *hs);
00082 };
00083
00084
00085 struct IndustrySpec;
00086 class IndustryOverrideManager : public OverrideManagerBase {
00087 public:
00088 IndustryOverrideManager(uint16 offset, uint16 maximum, uint16 invalid) :
00089 OverrideManagerBase(offset, maximum, invalid) {}
00090
00091 virtual uint16 AddEntityID(byte grf_local_id, uint32 grfid, byte substitute_id);
00092 virtual uint16 GetID(uint8 grf_local_id, uint32 grfid) const;
00093 void SetEntitySpec(IndustrySpec *inds);
00094 };
00095
00096
00097 struct IndustryTileSpec;
00098 class IndustryTileOverrideManager : public OverrideManagerBase {
00099 protected:
00100 virtual bool CheckValidNewID(uint16 testid) { return testid != 0xFF; }
00101 public:
00102 IndustryTileOverrideManager(uint16 offset, uint16 maximum, uint16 invalid) :
00103 OverrideManagerBase(offset, maximum, invalid) {}
00104
00105 void SetEntitySpec(const IndustryTileSpec *indts);
00106 };
00107
00108 struct AirportSpec;
00109 class AirportOverrideManager : public OverrideManagerBase {
00110 public:
00111 AirportOverrideManager(uint16 offset, uint16 maximum, uint16 invalid) :
00112 OverrideManagerBase(offset, maximum, invalid) {}
00113
00114 void SetEntitySpec(AirportSpec *inds);
00115 };
00116
00117 struct AirportTileSpec;
00118 class AirportTileOverrideManager : public OverrideManagerBase {
00119 protected:
00120 virtual bool CheckValidNewID(uint16 testid) { return testid != 0xFF; }
00121 public:
00122 AirportTileOverrideManager(uint16 offset, uint16 maximum, uint16 invalid) :
00123 OverrideManagerBase(offset, maximum, invalid) {}
00124
00125 void SetEntitySpec(const AirportTileSpec *ats);
00126 };
00127
00128 struct ObjectSpec;
00129 class ObjectOverrideManager : public OverrideManagerBase {
00130 protected:
00131 virtual bool CheckValidNewID(uint16 testid) { return testid != 0xFF; }
00132 public:
00133 ObjectOverrideManager(uint16 offset, uint16 maximum, uint16 invalid) :
00134 OverrideManagerBase(offset, maximum, invalid) {}
00135
00136 void SetEntitySpec(ObjectSpec *spec);
00137 };
00138
00139 extern HouseOverrideManager _house_mngr;
00140 extern IndustryOverrideManager _industry_mngr;
00141 extern IndustryTileOverrideManager _industile_mngr;
00142 extern AirportOverrideManager _airport_mngr;
00143 extern AirportTileOverrideManager _airporttile_mngr;
00144 extern ObjectOverrideManager _object_mngr;
00145
00146 uint32 GetTerrainType(TileIndex tile, TileContext context = TCX_NORMAL);
00147 TileIndex GetNearbyTile(byte parameter, TileIndex tile, bool signed_offsets = true);
00148 uint32 GetNearbyTileInformation(TileIndex tile);
00149
00154 template <size_t Tcnt>
00155 struct GRFFilePropsBase {
00156 GRFFilePropsBase() : local_id(0), grffile(0)
00157 {
00158
00159
00160 memset(spritegroup, 0, sizeof(spritegroup));
00161 }
00162
00163 uint16 local_id;
00164 const struct GRFFile *grffile;
00165 const struct SpriteGroup *spritegroup[Tcnt];
00166 };
00167
00169 struct GRFFileProps : GRFFilePropsBase<1> {
00171 GRFFileProps(uint16 subst_id) :
00172 GRFFilePropsBase<1>(), subst_id(subst_id), override(subst_id)
00173 {
00174 }
00175
00177 GRFFileProps() : GRFFilePropsBase<1>() {}
00178 uint16 subst_id;
00179 uint16 override;
00180 };
00181
00182 #endif