(svn r3455) * Assert against modifying the outer border of a map into anything but MP_VOID. This might detect a bug that has been there for quite some time, if it hasn't been fixed already.
--- a/tile.h Sat Jan 28 01:33:57 2006 +0000
+++ b/tile.h Sat Jan 28 09:45:25 2006 +0000
@@ -89,6 +89,11 @@
static inline void SetTileType(TileIndex tile, TileType type)
{
assert(tile < MapSize());
+ /* Allow only MP_VOID to be set to border tiles. This code is put here since
+ * it seems there is a bug that violates this somewhere. (Formely know as
+ * the "old ship pf" bug, which presented a case in which this broke). It
+ * can be removed as soon as the bug is squashed. */
+ assert((TileX(tile) < MapMaxX() && TileY(tile) < MapMaxY()) || type == MP_VOID);
SB(_m[tile].type_height, 4, 4, type);
}