Bug 100: Flip slopes properly.

[supertux.git] / src / math / aatriangle.hpp

diff --git a/src/math/aatriangle.hpp b/src/math/aatriangle.hpp
index e37fa8a..6eea71f 100644 (file)
--- a/src/math/aatriangle.hpp
+++ b/src/math/aatriangle.hpp
@@ -49,6 +49,8 @@ public:
     DEFORM_MASK = 0x0070
   };
 
+  static int vertical_flip(int dir);
+
 public:
   AATriangle() :
     p1(),