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-rw-r--r--src/tunnel_map.cpp6
-rw-r--r--src/tunnel_map.h4
2 files changed, 5 insertions, 5 deletions
diff --git a/src/tunnel_map.cpp b/src/tunnel_map.cpp
index 405e6fb38..7639fa949 100644
--- a/src/tunnel_map.cpp
+++ b/src/tunnel_map.cpp
@@ -45,10 +45,10 @@ TileIndex GetOtherTunnelEnd(TileIndex tile)
* @param dir the direction to start searching to.
* @return true if and only if there is a tunnel.
*/
-bool IsTunnelInWayDir(TileIndex tile, uint z, DiagDirection dir)
+bool IsTunnelInWayDir(TileIndex tile, int z, DiagDirection dir)
{
TileIndexDiff delta = TileOffsByDiagDir(dir);
- uint height;
+ int height;
do {
tile -= delta;
@@ -65,7 +65,7 @@ bool IsTunnelInWayDir(TileIndex tile, uint z, DiagDirection dir)
* @param z the 'z' to search on.
* @return true if and only if there is a tunnel.
*/
-bool IsTunnelInWay(TileIndex tile, uint z)
+bool IsTunnelInWay(TileIndex tile, int z)
{
return IsTunnelInWayDir(tile, z, (TileX(tile) > (MapMaxX() / 2)) ? DIAGDIR_NE : DIAGDIR_SW) ||
IsTunnelInWayDir(tile, z, (TileY(tile) > (MapMaxY() / 2)) ? DIAGDIR_NW : DIAGDIR_SE);
diff --git a/src/tunnel_map.h b/src/tunnel_map.h
index 2a167055a..c4f68f729 100644
--- a/src/tunnel_map.h
+++ b/src/tunnel_map.h
@@ -38,8 +38,8 @@ static inline bool IsTunnelTile(TileIndex t)
}
TileIndex GetOtherTunnelEnd(TileIndex);
-bool IsTunnelInWay(TileIndex, uint z);
-bool IsTunnelInWayDir(TileIndex tile, uint z, DiagDirection dir);
+bool IsTunnelInWay(TileIndex, int z);
+bool IsTunnelInWayDir(TileIndex tile, int z, DiagDirection dir);
/**
* Makes a road tunnel entrance