diff --git a/doc/samples/physics/lolbtphysicsintegration.h b/doc/samples/physics/lolbtphysicsintegration.h
index bf94e49f..c9097512 100644
--- a/doc/samples/physics/lolbtphysicsintegration.h
+++ b/doc/samples/physics/lolbtphysicsintegration.h
@@ -1,47 +1,50 @@
 //
-// Lol Engine
+//  Lol Engine
 //
-// Copyright: (c) 2010-2013 Sam Hocevar <sam@hocevar.net>
-//            (c) 2009-2013 Benjamin "Touky" Huet <huet.benjamin@gmail.com>
-//   This program is free software; you can redistribute it and/or
-//   modify it under the terms of the Do What The Fuck You Want To
-//   Public License, Version 2, as published by Sam Hocevar. See
-//   http://www.wtfpl.net/ for more details.
+//  Copyright © 2010—2013 Benjamin “Touky” Huet <huet.benjamin@gmail.com>
+//            © 2009—2013 Sam Hocevar <sam@hocevar.net>
+//
+//  This library is free software. It comes without any warranty, to
+//  the extent permitted by applicable law. You can redistribute it
+//  and/or modify it under the terms of the Do What the Fuck You Want
+//  to Public License, Version 2, as published by the WTFPL Task Force.
+//  See http://www.wtfpl.net/ for more details.
 //
 
 #pragma once
 
 //
 // Bullet Physics integration in Lol
-// ------------------
+// ---------------------------------
 //
 
 namespace lol
 {
-    //Override Gamegroups names for Physic-usage
-    //"_ENT_" means that this is a group for Entities that use EasyPhysic primitives.
-    //"_EZP_" means that this is a group for EasyPhysic primitives.
+
+// Override Gamegroups names for Physic-usage
+// "_ENT_" means that this is a group for Entities that use EasyPhysic primitives.
+// "_EZP_" means that this is a group for EasyPhysic primitives.
 #define GAMEGROUP_ENT_INPUT         GAMEGROUP_INPUT
 #define GAMEGROUP_ENT_PLATFORM      GAMEGROUP_ENTITY
 #define GAMEGROUP_ENT_MAIN          GAMEGROUP_OTHER_1
 #define GAMEGROUP_EZP_CHAR_CTRLR    GAMEGROUP_OTHER_2
 #define GAMEGROUP_SIMULATION        GAMEGROUP_OTHER_3
 
-#define LOL2BT_UNIT                1.0f
-#define BT2LOL_UNIT                1.0f
+#define LOL2BT_UNIT 1.0f
+#define BT2LOL_UNIT 1.0f
 
-#define LOL2BT_SIZE                0.5f
-#define BT2LOL_SIZE                2.0f
+#define LOL2BT_SIZE 0.5f
+#define BT2LOL_SIZE 2.0f
 
-#define LOL2BT_VEC3(ELEMENT)    btVector3((ELEMENT).x, (ELEMENT).y, (ELEMENT).z)
-#define BT2LOL_VEC3(ELEMENT)    (*(lol::vec3*)(&(ELEMENT)))
+#define LOL2BT_VEC3(v) btVector3((v).x, (v).y, (v).z)
+#define BT2LOL_VEC3(v) lol::vec3(v.getX(), v.getY(), v.getZ())
 
-//Same as above with Unit taken into account
-#define LOL2BTU_VEC3(ELEMENT)    btVector3((ELEMENT).x * LOL2BT_UNIT, (ELEMENT).y * LOL2BT_UNIT, (ELEMENT).z * LOL2BT_UNIT)
-#define BT2LOLU_VEC3(ELEMENT)    (*(lol::vec3*)(&(ELEMENT))) * BT2LOL_UNIT
+// Same as above with Unit taken into account
+#define LOL2BTU_VEC3(v) (LOL2BT_VEC3(v) * LOL2BT_UNIT)
+#define BT2LOLU_VEC3(v) (BT2LOL_VEC3(v) * BT2LOL_UNIT)
 
-#define LOL2BT_QUAT(ELEMENT)    btQuaternion((ELEMENT).x, (ELEMENT).y, (ELEMENT).z, (ELEMENT).w)
-#define BT2LOL_QUAT(ELEMENT)    lol::quat((ELEMENT).getW(), BT2LOL_VEC3((ELEMENT).getAxis())
+#define LOL2BT_QUAT(q) btQuaternion((q).x, (q).y, (q).z, (q).w)
+#define BT2LOL_QUAT(q) lol::quat((q).getW(), BT2LOL_VEC3((q).getAxis())
 
 } /* namespace lol */