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, 4 insertions, 3 deletions

diff --git a/src/tileset.h b/src/tileset.h
index 9e0bf936..4ba9f016 100644
--- a/src/tileset.h
+++ b/src/tileset.h
@@ -30,7 +30,8 @@
 class Tileset : public ImageSet
 {
     public:
-        Tileset(Image *img, int w, int h, int firstGid, int margin, int spacing):
+        Tileset(Image *img, int w, int h, unsigned firstGid,
+                int margin, int spacing):
             ImageSet(img, w, h, margin, spacing),
             mFirstGid(firstGid)
         {
@@ -39,13 +40,13 @@ class Tileset : public ImageSet
         /**
          * Returns the first gid.
          */
-        int getFirstGid() const
+        unsigned getFirstGid() const
         {
             return mFirstGid;
         }
 
     private:
-        int mFirstGid;
+        unsigned mFirstGid;
 };
 
 #endif // TILESET_H