Warning, file /education/gcompris/external/qml-box2d/Box2D/Dynamics/b2WorldCallbacks.cpp was not indexed or was modified since last indexation (in which case cross-reference links may be missing, inaccurate or erroneous).

 /*
 * Copyright (c) 2006-2009 Erin Catto http://www.box2d.org
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 * 1. The origin of this software must not be misrepresented; you must not
 * claim that you wrote the original software. If you use this software
 * in a product, an acknowledgment in the product documentation would be
 * appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 * misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 */
 
 #include <Box2D/Dynamics/b2WorldCallbacks.h>
 #include <Box2D/Dynamics/b2Fixture.h>
 
 // Return true if contact calculations should be performed between these two shapes.
 // If you implement your own collision filter you may want to build from this implementation.
 bool b2ContactFilter::ShouldCollide(b2Fixture* fixtureA, b2Fixture* fixtureB)
 {
     const b2Filter& filterA = fixtureA->GetFilterData();
     const b2Filter& filterB = fixtureB->GetFilterData();
 
     if (filterA.groupIndex == filterB.groupIndex && filterA.groupIndex != 0)
     {
         return filterA.groupIndex > 0;
     }
 
     bool collide = (filterA.maskBits & filterB.categoryBits) != 0 && (filterA.categoryBits & filterB.maskBits) != 0;
     return collide;
 }