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r8781:bd977c904a17 1.7 KiB text/x-c Show Annotation Show as Raw Download as Raw

bjarni

(svn r12482) -Fix: [build train] we don't need to have a depot in order to just check the price of a rail vehicle so don't check for compatible rails on the tile either
also wagons will only need tracks they can drive on in order to be build so there is no reason to check for power in the depot

/* $Id$ */

/** @file tunnel_map.h */

#ifndef TUNNEL_MAP_H
#define TUNNEL_MAP_H

#include "direction_func.h"
#include "rail_type.h"
#include "road_type.h"
#include "tile_map.h"


/**
 * Is this a tunnel (entrance)?
 * @param t the tile that might be a tunnel
 * @pre IsTileType(t, MP_TUNNELBRIDGE)
 * @return true if and only if this tile is a tunnel (entrance)
 */
static inline bool IsTunnel(TileIndex t)
{
	assert(IsTileType(t, MP_TUNNELBRIDGE));
	return !HasBit(_m[t].m5, 7);
}

/**
 * Is this a tunnel (entrance)?
 * @param t the tile that might be a tunnel
 * @return true if and only if this tile is a tunnel (entrance)
 */
static inline bool IsTunnelTile(TileIndex t)
{
	return IsTileType(t, MP_TUNNELBRIDGE) && IsTunnel(t);
}

TileIndex GetOtherTunnelEnd(TileIndex);
bool IsTunnelInWay(TileIndex, uint z);
bool IsTunnelInWayDir(TileIndex tile, uint z, DiagDirection dir);

/**
 * Makes a road tunnel entrance
 * @param t the entrance of the tunnel
 * @param o the owner of the entrance
 * @param d the direction facing out of the tunnel
 * @param r the road type used in the tunnel
 */
static inline void MakeRoadTunnel(TileIndex t, Owner o, DiagDirection d, RoadTypes r)
{
	SetTileType(t, MP_TUNNELBRIDGE);
	SetTileOwner(t, o);
	_m[t].m2 = 0;
	_m[t].m3 = r;
	_m[t].m4 = 0;
	_m[t].m5 = TRANSPORT_ROAD << 2 | d;
}

/**
 * Makes a rail tunnel entrance
 * @param t the entrance of the tunnel
 * @param o the owner of the entrance
 * @param d the direction facing out of the tunnel
 * @param r the rail type used in the tunnel
 */
static inline void MakeRailTunnel(TileIndex t, Owner o, DiagDirection d, RailType r)
{
	SetTileType(t, MP_TUNNELBRIDGE);
	SetTileOwner(t, o);
	_m[t].m2 = 0;
	_m[t].m3 = r;
	_m[t].m4 = 0;
	_m[t].m5 = TRANSPORT_RAIL << 2 | d;
}

#endif /* TUNNEL_MAP_H */