Missing file in previous commit.

git-svn-id: svn+ssh://svn.code.sf.net/p/supertuxkart/code/main/trunk@9709 178a84e3-b1eb-0310-8ba1-8eac791a3b58

src/items/rubber_ball.hpp

@@ -123,6 +123,7 @@ private:
     float        updateHeight();
     void         interpolate(Vec3 *next_xyz, float dt);
     void         initializeControlPoints(const Vec3 &xyz);
+	float        getMaxTerrainHeight() const;
 public:
                  RubberBall  (Kart* kart);
     virtual     ~RubberBall();