tron@3154: /* $Id$ */
tron@3154: 
rubidium@10429: /** @file tunnel_map.h Map accessors for tunnels. */
belugas@6918: 
tron@3154: #ifndef TUNNEL_MAP_H
tron@3154: #define TUNNEL_MAP_H
tron@3154: 
rubidium@8596: #include "direction_func.h"
rubidium@8598: #include "rail_type.h"
rubidium@8598: #include "road_type.h"
rubidium@10444: #include "transport_type.h"
rubidium@8604: #include "tile_map.h"
tron@3154: 
smatz@8579: 
rubidium@7036: /**
rubidium@7036:  * Is this a tunnel (entrance)?
rubidium@7036:  * @param t the tile that might be a tunnel
rubidium@7036:  * @pre IsTileType(t, MP_TUNNELBRIDGE)
rubidium@7036:  * @return true if and only if this tile is a tunnel (entrance)
rubidium@7036:  */
tron@3184: static inline bool IsTunnel(TileIndex t)
tron@3184: {
tron@3369: 	assert(IsTileType(t, MP_TUNNELBRIDGE));
skidd13@8424: 	return !HasBit(_m[t].m5, 7);
tron@3184: }
tron@3184: 
rubidium@7036: /**
rubidium@7036:  * Is this a tunnel (entrance)?
rubidium@7036:  * @param t the tile that might be a tunnel
rubidium@7036:  * @return true if and only if this tile is a tunnel (entrance)
rubidium@7036:  */
tron@3184: static inline bool IsTunnelTile(TileIndex t)
tron@3184: {
tron@3184: 	return IsTileType(t, MP_TUNNELBRIDGE) && IsTunnel(t);
tron@3184: }
tron@3184: 
tron@3154: TileIndex GetOtherTunnelEnd(TileIndex);
tron@3156: bool IsTunnelInWay(TileIndex, uint z);
rubidium@7498: bool IsTunnelInWayDir(TileIndex tile, uint z, DiagDirection dir);
tron@3154: 
rubidium@7036: /**
rubidium@7036:  * Makes a road tunnel entrance
rubidium@7036:  * @param t the entrance of the tunnel
rubidium@7036:  * @param o the owner of the entrance
rubidium@7036:  * @param d the direction facing out of the tunnel
rubidium@7157:  * @param r the road type used in the tunnel
rubidium@7036:  */
rubidium@7157: static inline void MakeRoadTunnel(TileIndex t, Owner o, DiagDirection d, RoadTypes r)
tron@3154: {
tron@3154: 	SetTileType(t, MP_TUNNELBRIDGE);
tron@3154: 	SetTileOwner(t, o);
tron@3154: 	_m[t].m2 = 0;
rubidium@7157: 	_m[t].m3 = r;
tron@3154: 	_m[t].m4 = 0;
tron@3154: 	_m[t].m5 = TRANSPORT_ROAD << 2 | d;
tron@3154: }
tron@3154: 
rubidium@7036: /**
rubidium@7036:  * Makes a rail tunnel entrance
rubidium@7036:  * @param t the entrance of the tunnel
rubidium@7036:  * @param o the owner of the entrance
rubidium@7036:  * @param d the direction facing out of the tunnel
rubidium@7036:  * @param r the rail type used in the tunnel
rubidium@7036:  */
tron@3154: static inline void MakeRailTunnel(TileIndex t, Owner o, DiagDirection d, RailType r)
tron@3154: {
tron@3154: 	SetTileType(t, MP_TUNNELBRIDGE);
tron@3154: 	SetTileOwner(t, o);
tron@3154: 	_m[t].m2 = 0;
tron@3154: 	_m[t].m3 = r;
tron@3154: 	_m[t].m4 = 0;
tron@3154: 	_m[t].m5 = TRANSPORT_RAIL << 2 | d;
tron@3154: }
tron@3154: 
peter1138@4666: #endif /* TUNNEL_MAP_H */