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(svn r16583) -Update: the order of the language files so it's in sync with english.txt. Normally WT2 would do this, but only with activity for those languages. Now we'd like to the order to match so we can more easily spot import bugs while developing WT3.
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/** @file tunnelbridge_map.h Functions that have tunnels and bridges in common */
#ifndef TUNNELBRIDGE_MAP_H
#define TUNNELBRIDGE_MAP_H
#include "direction_func.h"
#include "core/bitmath_func.hpp"
#include "tile_map.h"
#include "bridge_map.h"
#include "tunnel_map.h"
#include "transport_type.h"
#include "track_func.h"
/**
* Get the direction pointing to the other end.
*
* Tunnel: Get the direction facing into the tunnel
* Bridge: Get the direction pointing onto the bridge
* @param t The tile to analyze
* @pre IsTileType(t, MP_TUNNELBRIDGE)
* @return the above mentionned direction
*/
static inline DiagDirection GetTunnelBridgeDirection(TileIndex t)
{
assert(IsTileType(t, MP_TUNNELBRIDGE));
return (DiagDirection)GB(_m[t].m5, 0, 2);
}
/**
* Tunnel: Get the transport type of the tunnel (road or rail)
* Bridge: Get the transport type of the bridge's ramp
* @param t The tile to analyze
* @pre IsTileType(t, MP_TUNNELBRIDGE)
* @return the transport type in the tunnel/bridge
*/
static inline TransportType GetTunnelBridgeTransportType(TileIndex t)
{
assert(IsTileType(t, MP_TUNNELBRIDGE));
return (TransportType)GB(_m[t].m5, 2, 2);
}
/**
* Tunnel: Is this tunnel entrance in a snowy or desert area?
* Bridge: Does the bridge ramp lie in a snow or desert area?
* @param t The tile to analyze
* @pre IsTileType(t, MP_TUNNELBRIDGE)
* @return true if and only if the tile is in a snowy/desert area
*/
static inline bool HasTunnelBridgeSnowOrDesert(TileIndex t)
{
assert(IsTileType(t, MP_TUNNELBRIDGE));
return HasBit(_me[t].m7, 5);
}
/**
* Tunnel: Places this tunnel entrance in a snowy or desert area, or takes it out of there.
* Bridge: Sets whether the bridge ramp lies in a snow or desert area.
* @param t the tunnel entrance / bridge ramp tile
* @param snow_or_desert is the entrance/ramp in snow or desert (true), when
* not in snow and not in desert false
* @pre IsTileType(t, MP_TUNNELBRIDGE)
*/
static inline void SetTunnelBridgeSnowOrDesert(TileIndex t, bool snow_or_desert)
{
assert(IsTileType(t, MP_TUNNELBRIDGE));
SB(_me[t].m7, 5, 1, snow_or_desert);
}
/**
* Determines type of the wormhole and returns its other end
* @param t one end
* @pre IsTileType(t, MP_TUNNELBRIDGE)
* @return other end
*/
static inline TileIndex GetOtherTunnelBridgeEnd(TileIndex t)
{
assert(IsTileType(t, MP_TUNNELBRIDGE));
return IsTunnel(t) ? GetOtherTunnelEnd(t) : GetOtherBridgeEnd(t);
}
/**
* Get the reservation state of the rail tunnel/bridge
* @pre IsTileType(t, MP_TUNNELBRIDGE) && GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL
* @param t the tile
* @return reservation state
*/
static inline bool GetTunnelBridgeReservation(TileIndex t)
{
assert(IsTileType(t, MP_TUNNELBRIDGE));
assert(GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL);
return HasBit(_m[t].m5, 4);
}
/**
* Set the reservation state of the rail tunnel/bridge
* @pre IsTileType(t, MP_TUNNELBRIDGE) && GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL
* @param t the tile
* @param b the reservation state
*/
static inline void SetTunnelBridgeReservation(TileIndex t, bool b)
{
assert(IsTileType(t, MP_TUNNELBRIDGE));
assert(GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL);
SB(_m[t].m5, 4, 1, b ? 1 : 0);
}
/**
* Get the reserved track bits for a rail tunnel/bridge
* @pre IsTileType(t, MP_TUNNELBRIDGE) && GetTunnelBridgeTransportType(t) == TRANSPORT_RAIL
* @param t the tile
* @return reserved track bits
*/
static inline TrackBits GetRailTunnelBridgeReservation(TileIndex t)
{
return GetTunnelBridgeReservation(t) ? DiagDirToDiagTrackBits(GetTunnelBridgeDirection(t)) : TRACK_BIT_NONE;
}
#endif /* TUNNELBRIDGE_MAP_H */
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