Clear tile flags from the gid before further processing

Better to show non-rotated/flipped tiles than no tile at all. This also
fixes interpretation of collision tiles that happen to be flipped.

Also interpret the gid as an unsigned number, since that's how they are
written in the TMX file since the introduction of these flags.

Reviewed-by: Yohann Ferreira

1 files changed, 1 insertions, 1 deletions

diff --git a/src/map.h b/src/map.h
index 0bec3ef4..7f75afea 100644
--- a/src/map.h
+++ b/src/map.h
@@ -221,7 +221,7 @@ class Map : public Properties
         /**
          * Finds the tile set that a tile with the given global id is part of.
          */
-        Tileset *getTilesetWithGid(int gid) const;
+        Tileset *getTilesetWithGid(unsigned gid) const;
 
         /**
          * Get tile reference.