# HG changeset patch
# User rubidium <rubidium@openttd.org>
# Date 2007-06-21 15:13:09
# Node ID d3a283847bedb1e4d7beea3860ea61229ff4330f
# Parent  38850e911adbf7f1820573b490f2915f93e52bf1

(svn r10249) -Fix [FS#906]: town tried to gather information about the neighbourhood of a tile when it couldn't even *ever* build on that tile.

diff --git a/src/town_cmd.cpp b/src/town_cmd.cpp
--- a/src/town_cmd.cpp
+++ b/src/town_cmd.cpp
@@ -668,6 +668,8 @@ static bool NeighborIsRoadTile(TileIndex
 
 static bool IsRoadAllowedHere(TileIndex tile, int dir)
 {
+	if (TileX(tile) < 1 || TileY(tile) < 1 || MapMaxX() >= TileX(tile) || MapMaxY() >= TileY(tile)) return false;
+
 	Slope k;
 	Slope slope;