diff options
Diffstat (limited to 'src/tunnel_map.cpp')
| -rw-r--r-- | src/tunnel_map.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/tunnel_map.cpp b/src/tunnel_map.cpp index db5cedaa9..d0788b951 100644 --- a/src/tunnel_map.cpp +++ b/src/tunnel_map.cpp @@ -7,6 +7,12 @@ #include "tile.h" #include "tunnel_map.h" +/** + * Gets the other end of the tunnel. Where a vehicle would reappear when it + * enters at the given tile. + * @param tile the tile to search from. + * @return the tile of the other end of the tunnel. + */ TileIndex GetOtherTunnelEnd(TileIndex tile) { DiagDirection dir = GetTunnelDirection(tile); @@ -26,6 +32,13 @@ TileIndex GetOtherTunnelEnd(TileIndex tile) } +/** + * Is there a tunnel in the way in the given direction? + * @param tile the tile to search from. + * @param z the 'z' to search on. + * @param dir the direction to start searching to. + * @return true if and only if there is a tunnel. + */ static bool IsTunnelInWayDir(TileIndex tile, uint z, DiagDirection dir) { TileIndexDiff delta = TileOffsByDiagDir(dir); @@ -42,6 +55,12 @@ static bool IsTunnelInWayDir(TileIndex tile, uint z, DiagDirection dir) GetTunnelDirection(tile) == dir; } +/** + * Is there a tunnel in the way in any direction? + * @param tile the tile to search from. + * @param z the 'z' to search on. + * @return true if and only if there is a tunnel. + */ bool IsTunnelInWay(TileIndex tile, uint z) { return |