added GPL copyrights

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

diff --git a/src/Effects/Gravity.cpp b/src/Effects/Gravity.cpp
index 3d2cd0a..85fd46c 100644 (file)
--- a/src/Effects/Gravity.cpp
+++ b/src/Effects/Gravity.cpp
@@ -1,13 +1,37 @@
+/*
+ *  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/>.
+ */
+
 #include "Gravity.h"
 
-/// ***** Header Class *****
-Vector2 Gravity::positionAfter(const Vector2&, float)
+
+/// ***** Constructors/Destructors *****
+
+Gravity::Gravity()
 {
 
 }
-Vector2 Gravity::velocityAfter(const Vector2&, float)
+Gravity::~Gravity()
 {
 
 }
 
-#endif // GRAVITY_H
+/// ***** Public Class Methods *****
+
+Vector2 Gravity::forceDelta(const PhysicsEntity*, float) const
+{
+    return Vector2(0, 0.001);
+}