--- a/src/vehicle.cpp Wed Jun 13 19:34:33 2007 +0000
+++ b/src/vehicle.cpp Wed Jun 13 23:14:08 2007 +0000
@@ -43,7 +43,7 @@
#include "group.h"
#include "economy.h"
-#define INVALID_COORD (-0x8000)
+#define INVALID_COORD (0x7fffffff)
#define GEN_HASH(x, y) ((GB((y), 6, 6) << 6) + GB((x), 7, 6))