00001
00002
00003
00004
00005
00006
00007
00008
00009
00012 #ifndef BRIDGE_MAP_H
00013 #define BRIDGE_MAP_H
00014
00015 #include "road_map.h"
00016 #include "bridge.h"
00017
00024 static inline bool IsBridge(TileIndex t)
00025 {
00026 assert(IsTileType(t, MP_TUNNELBRIDGE));
00027 return HasBit(_m[t].m5, 7);
00028 }
00029
00035 static inline bool IsBridgeTile(TileIndex t)
00036 {
00037 return IsTileType(t, MP_TUNNELBRIDGE) && IsBridge(t);
00038 }
00039
00046 static inline bool MayHaveBridgeAbove(TileIndex t)
00047 {
00048 return
00049 IsTileType(t, MP_CLEAR) ||
00050 IsTileType(t, MP_RAILWAY) ||
00051 IsTileType(t, MP_ROAD) ||
00052 IsTileType(t, MP_WATER) ||
00053 IsTileType(t, MP_TUNNELBRIDGE) ||
00054 IsTileType(t, MP_UNMOVABLE);
00055 }
00056
00063 static inline bool IsBridgeAbove(TileIndex t)
00064 {
00065 assert(MayHaveBridgeAbove(t));
00066 return GB(_m[t].m6, 6, 2) != 0;
00067 }
00068
00075 static inline BridgeType GetBridgeType(TileIndex t)
00076 {
00077 assert(IsBridgeTile(t));
00078 return GB(_m[t].m6, 2, 4);
00079 }
00080
00087 static inline Axis GetBridgeAxis(TileIndex t)
00088 {
00089 assert(IsBridgeAbove(t));
00090 return (Axis)(GB(_m[t].m6, 6, 2) - 1);
00091 }
00092
00097 TileIndex GetNorthernBridgeEnd(TileIndex t);
00098
00103 TileIndex GetSouthernBridgeEnd(TileIndex t);
00104
00105
00110 TileIndex GetOtherBridgeEnd(TileIndex t);
00111
00117 uint GetBridgeHeight(TileIndex tile);
00118
00125 static inline void ClearSingleBridgeMiddle(TileIndex t, Axis a)
00126 {
00127 assert(MayHaveBridgeAbove(t));
00128 ClrBit(_m[t].m6, 6 + a);
00129 }
00130
00136 static inline void ClearBridgeMiddle(TileIndex t)
00137 {
00138 ClearSingleBridgeMiddle(t, AXIS_X);
00139 ClearSingleBridgeMiddle(t, AXIS_Y);
00140 }
00141
00148 static inline void SetBridgeMiddle(TileIndex t, Axis a)
00149 {
00150 assert(MayHaveBridgeAbove(t));
00151 SetBit(_m[t].m6, 6 + a);
00152 }
00153
00164 static inline void MakeBridgeRamp(TileIndex t, Owner o, BridgeType bridgetype, DiagDirection d, TransportType tt, uint rt)
00165 {
00166 SetTileType(t, MP_TUNNELBRIDGE);
00167 SetTileOwner(t, o);
00168 _m[t].m2 = 0;
00169 _m[t].m3 = rt;
00170 _m[t].m4 = 0;
00171 _m[t].m5 = 1 << 7 | tt << 2 | d;
00172 SB(_m[t].m6, 2, 4, bridgetype);
00173 _me[t].m7 = 0;
00174 }
00175
00184 static inline void MakeRoadBridgeRamp(TileIndex t, Owner o, BridgeType bridgetype, DiagDirection d, RoadTypes r)
00185 {
00186 MakeBridgeRamp(t, o, bridgetype, d, TRANSPORT_ROAD, 0);
00187 SetRoadOwner(t, ROADTYPE_ROAD, o);
00188 if (o != OWNER_TOWN) SetRoadOwner(t, ROADTYPE_TRAM, o);
00189 SetRoadTypes(t, r);
00190 }
00191
00200 static inline void MakeRailBridgeRamp(TileIndex t, Owner o, BridgeType bridgetype, DiagDirection d, RailType r)
00201 {
00202 MakeBridgeRamp(t, o, bridgetype, d, TRANSPORT_RAIL, r);
00203 }
00204
00211 static inline void MakeAqueductBridgeRamp(TileIndex t, Owner o, DiagDirection d)
00212 {
00213 MakeBridgeRamp(t, o, 0, d, TRANSPORT_WATER, 0);
00214 }
00215
00216 #endif