tunnel_map.cpp File Reference

Map accessors for tunnels. More...

#include "stdafx.h"
#include "tunnelbridge_map.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, uint z, DiagDirection dir)
 Is there a tunnel in the way in the given direction?
bool IsTunnelInWay (TileIndex tile, uint 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

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 CFollowTrackT< Ttr_type_, VehicleType, T90deg_turns_allowed_, Tmask_reserved_tracks >::FollowTileExit(), GetOtherTunnelBridgeEnd(), and AITunnel::GetOtherTunnelEnd().

bool IsTunnelInWay ( TileIndex  tile,
uint  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 71 of file tunnel_map.cpp.

References DIAGDIR_NE, DIAGDIR_NW, DIAGDIR_SE, DIAGDIR_SW, IsTunnelInWayDir(), MapMaxX(), MapMaxY(), TileX(), and TileY().

Referenced by CmdTerraformLand().

bool IsTunnelInWayDir ( TileIndex  tile,
uint  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().


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