tunnelbridge_map.h

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00001 /* $Id: tunnelbridge_map.h 17248 2009-08-21 20:21:05Z rubidium $ */
00002 
00003 /*
00004  * This file is part of OpenTTD.
00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
00008  */
00009 
00012 #ifndef TUNNELBRIDGE_MAP_H
00013 #define TUNNELBRIDGE_MAP_H
00014 
00015 #include "direction_func.h"
00016 #include "core/bitmath_func.hpp"
00017 #include "tile_map.h"
00018 #include "bridge_map.h"
00019 #include "tunnel_map.h"
00020 #include "transport_type.h"
00021 #include "track_func.h"
00022 
00023 
00033 static inline DiagDirection GetTunnelBridgeDirection(TileIndex t)
00034 {
00035   assert(IsTileType(t, MP_TUNNELBRIDGE));
00036   return (DiagDirection)GB(_m[t].m5, 0, 2);
00037 }
00038 
00046 static inline TransportType GetTunnelBridgeTransportType(TileIndex t)
00047 {
00048   assert(IsTileType(t, MP_TUNNELBRIDGE));
00049   return (TransportType)GB(_m[t].m5, 2, 2);
00050 }
00051 
00059 static inline bool HasTunnelBridgeSnowOrDesert(TileIndex t)
00060 {
00061   assert(IsTileType(t, MP_TUNNELBRIDGE));
00062   return HasBit(_me[t].m7, 5);
00063 }
00064 
00073 static inline void SetTunnelBridgeSnowOrDesert(TileIndex t, bool snow_or_desert)
00074 {
00075   assert(IsTileType(t, MP_TUNNELBRIDGE));
00076   SB(_me[t].m7, 5, 1, snow_or_desert);
00077 }
00078 
00085 static inline TileIndex GetOtherTunnelBridgeEnd(TileIndex t)
00086 {
00087   assert(IsTileType(t, MP_TUNNELBRIDGE));
00088   return IsTunnel(t) ? GetOtherTunnelEnd(t) : GetOtherBridgeEnd(t);
00089 }
00090 
00091 
00098 static inline bool HasTunnelBridgeReservation(TileIndex t)
00099 {
00100   assert(IsTileType(t, MP_TUNNELBRIDGE));
00101   assert(GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL);
00102   return HasBit(_m[t].m5, 4);
00103 }
00104 
00111 static inline void SetTunnelBridgeReservation(TileIndex t, bool b)
00112 {
00113   assert(IsTileType(t, MP_TUNNELBRIDGE));
00114   assert(GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL);
00115   SB(_m[t].m5, 4, 1, b ? 1 : 0);
00116 }
00117 
00124 static inline TrackBits GetTunnelBridgeReservationTrackBits(TileIndex t)
00125 {
00126   return HasTunnelBridgeReservation(t) ? DiagDirToDiagTrackBits(GetTunnelBridgeDirection(t)) : TRACK_BIT_NONE;
00127 }
00128 
00129 #endif /* TUNNELBRIDGE_MAP_H */

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