SDL: use E(X^2) - E(X)^2 for variance to reduce an optimizer pass

[supertux.git] / src / direction.hpp

diff --git a/src/direction.hpp b/src/direction.hpp
index c7bb2e1..e665d20 100644 (file)
--- a/src/direction.hpp
+++ b/src/direction.hpp
@@ -20,6 +20,6 @@
 #ifndef SUPERTUX_DIRECTION_H
 #define SUPERTUX_DIRECTION_H
 
-enum Direction { AUTO, LEFT, RIGHT };
+enum Direction { AUTO, LEFT, RIGHT, UP, DOWN };
 
 #endif