added GPL copyrights

[physics.git] / src / Effects / Gravity.h

diff --git a/src/Effects/Gravity.h b/src/Effects/Gravity.h
index dc04726..b38bbee 100644 (file)
--- a/src/Effects/Gravity.h
+++ b/src/Effects/Gravity.h
@@ -1,18 +1,35 @@
+/*
+ *  Copyright (C) 2008 Patrik Gornicz, Gornicz_P (at) hotmail (dot) com.
+ *
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
 #ifndef GRAVITY_H
 #define GRAVITY_H
 
-#include "../Vector2.h"
 #include "Effect.h"
+#include "../Vector2.h"
+
 
 /// ***** Header Class *****
+
 class Gravity: public Effect
 {
   public:
     Gravity();
-    virtual ~Gravity();
+    ~Gravity();
 
-    Vector2 positionDelta(const PhysicsEntity*, float) const;
-    Vector2 velocityDelta(const PhysicsEntity*, float) const;
     Vector2 forceDelta(const PhysicsEntity*, float) const;
 };