tunnel_map.cpp File Reference

Map accessors for tunnels. More...

#include "stdafx.h"
#include "tunnelbridge_map.h"
#include "safeguards.h"

Go to the source code of this file.

Functions
TileIndex	GetOtherTunnelEnd (TileIndex tile)
	Gets the other end of the tunnel.
bool	IsTunnelInWayDir (TileIndex tile, int z, DiagDirection dir)
	Is there a tunnel in the way in the given direction?
bool	IsTunnelInWay (TileIndex tile, int z)
	Is there a tunnel in the way in any direction?

Detailed Description

Map accessors for tunnels.

Definition in file tunnel_map.cpp.

Function Documentation

GetOtherTunnelEnd()

TileIndex GetOtherTunnelEnd

(

TileIndex

tile

)

Gets the other end of the tunnel.

Where a vehicle would reappear when it enters at the given tile.

Parameters

tile	the tile to search from.

Returns

the tile of the other end of the tunnel.

Definition at line 22 of file tunnel_map.cpp.

References GetTileZ(), GetTunnelBridgeDirection(), IsTunnelTile(), ReverseDiagDir(), and TileOffsByDiagDir().

Referenced by DoClearTunnel(), CFollowTrackT< Ttr_type_, VehicleType, T90deg_turns_allowed_, Tmask_reserved_tracks >::FollowTileExit(), and GetOtherTunnelBridgeEnd().

IsTunnelInWay()

bool IsTunnelInWay	(	TileIndex	tile,
		int	z
	)

Is there a tunnel in the way in any direction?

Parameters

tile	the tile to search from.
z	the 'z' to search on.

Returns

true if and only if there is a tunnel.

Definition at line 68 of file tunnel_map.cpp.

References DIAGDIR_NE, DIAGDIR_NW, DIAGDIR_SE, DIAGDIR_SW, IsTunnelInWayDir(), Map::MaxX(), Map::MaxY(), TileX(), and TileY().

Referenced by CmdTerraformLand().

IsTunnelInWayDir()

bool IsTunnelInWayDir	(	TileIndex	tile,
		int	z,
		DiagDirection	dir
	)

Is there a tunnel in the way in the given direction?

Parameters

tile	the tile to search from.
z	the 'z' to search on.
dir	the direction to start searching to.

Returns

true if and only if there is a tunnel.

Definition at line 48 of file tunnel_map.cpp.

References GetTileZ(), GetTunnelBridgeDirection(), IsTunnelTile(), IsValidTile(), and TileOffsByDiagDir().

Referenced by CmdBuildTunnel(), and IsTunnelInWay().