new interface class: drawable

[chaz/yoink] / src / tilemap.hh

diff --git a/src/tilemap.hh b/src/tilemap.hh
index 212195355c76c53d9505b04f46fc216a25d9799f..50e5c3dd72d7620358713cafe8748c457ac29581 100644 (file)
--- a/src/tilemap.hh
+++ b/src/tilemap.hh
@@ -85,6 +85,7 @@ public:
 
        void setTileDimensions(unsigned tilesU, unsigned tilesV)
        {
+               assert(tilesU != 0 && tilesV != 0);
                tilesU_ = tilesU;
                tilesV_ = tilesV;
        }