tunnelbridge_map.h

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/*
 * This file is part of OpenTTD.
 * 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.
 * 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.
 * 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/>.
 */
 
#ifndef TUNNELBRIDGE_MAP_H
#define TUNNELBRIDGE_MAP_H
 
#include "bridge_map.h"
#include "tunnel_map.h"
 
 
inline DiagDirection GetTunnelBridgeDirection(Tile t)
{
  assert(IsTileType(t, MP_TUNNELBRIDGE));
  return (DiagDirection)GB(t.m5(), 0, 2);
}
 
inline TransportType GetTunnelBridgeTransportType(Tile t)
{
  assert(IsTileType(t, MP_TUNNELBRIDGE));
  return (TransportType)GB(t.m5(), 2, 2);
}
 
inline bool HasTunnelBridgeSnowOrDesert(Tile t)
{
  assert(IsTileType(t, MP_TUNNELBRIDGE));
  return HasBit(t.m7(), 5);
}
 
inline void SetTunnelBridgeSnowOrDesert(Tile t, bool snow_or_desert)
{
  assert(IsTileType(t, MP_TUNNELBRIDGE));
  SB(t.m7(), 5, 1, snow_or_desert);
}
 
inline TileIndex GetOtherTunnelBridgeEnd(Tile t)
{
  assert(IsTileType(t, MP_TUNNELBRIDGE));
  return IsTunnel(t) ? GetOtherTunnelEnd(t) : GetOtherBridgeEnd(t);
}
 
 
inline bool HasTunnelBridgeReservation(Tile t)
{
  assert(IsTileType(t, MP_TUNNELBRIDGE));
  assert(GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL);
  return HasBit(t.m5(), 4);
}
 
inline void SetTunnelBridgeReservation(Tile t, bool b)
{
  assert(IsTileType(t, MP_TUNNELBRIDGE));
  assert(GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL);
  AssignBit(t.m5(), 4, b);
}
 
inline TrackBits GetTunnelBridgeReservationTrackBits(Tile t)
{
  return HasTunnelBridgeReservation(t) ? DiagDirToDiagTrackBits(GetTunnelBridgeDirection(t)) : TRACK_BIT_NONE;
}
 
#endif /* TUNNELBRIDGE_MAP_H */