- updated TODO

[supertux.git] / src / vector.h

diff --git a/src/vector.h b/src/vector.h
index 6436c3f..e45a337 100644 (file)
--- a/src/vector.h
+++ b/src/vector.h
@@ -1,3 +1,21 @@
+//  $Id$
+//
+//  SuperTux -  A Jump'n Run
+//  Copyright (C) 2004 Matthias Braun <matze@braunis.de
+//
+//  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 2
+//  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, write to the Free Software
+//  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 #ifndef __VECTOR_HPP__
 #define __VECTOR_HPP__
 
@@ -41,6 +59,16 @@ public:
     return Vector(x * s, y * s);
   }
 
+  Vector operator/(float s) const
+  {
+    return Vector(x / s, y / s);
+  }
+
+  Vector operator-() const
+  {
+    return Vector(-x, -y);
+  }
+
   const Vector& operator +=(const Vector& other)
   {
     x += other.x;
@@ -48,6 +76,15 @@ public:
     return *this;
   }
 
+  // scalar product of 2 vectors
+  float operator*(const Vector& other) const
+  {
+    return x*other.x + y*other.y;
+  }
+
+  float norm() const;
+  Vector unit() const;
+
   // ... add the other operators as needed, I'm too lazy now ...
 
   float x, y; // leave this public, get/set methods just give me headaches