Leviathan::LeviathanPhysicsOverlapFilter Class Reference

Handles AABB material callbacks. More...

Inheritance diagram for Leviathan::LeviathanPhysicsOverlapFilter:

Public Member Functions
	LeviathanPhysicsOverlapFilter (PhysicalWorld *world)
bool	needBroadphaseCollision (btBroadphaseProxy *proxy0, btBroadphaseProxy *proxy1) const override

Detailed Description

Handles AABB material callbacks.

Definition at line 14 of file PhysicalWorld.cpp.

Constructor & Destructor Documentation

LeviathanPhysicsOverlapFilter()

Leviathan::LeviathanPhysicsOverlapFilter::LeviathanPhysicsOverlapFilter ( PhysicalWorld *  world )

inline

Definition at line 16 of file PhysicalWorld.cpp.

: World(world) {}

Member Function Documentation

needBroadphaseCollision()

bool Leviathan::LeviathanPhysicsOverlapFilter::needBroadphaseCollision ( btBroadphaseProxy *  proxy0, btBroadphaseProxy *  proxy1  ) const

inlineoverride

Definition at line 18 of file PhysicalWorld.cpp.

    {
        bool collides = (proxy0->m_collisionFilterGroup & proxy1->m_collisionFilterMask) != 0;
        collides =
            collides && (proxy1->m_collisionFilterGroup & proxy0->m_collisionFilterMask);

        if(!collides)
            return false;

        // Custom material check (this is after the fast inbuilt bullet mask check mimicking
        // check)
        const btCollisionObject* obj0 =
            static_cast<btCollisionObject*>(proxy0->m_clientObject);
        const btCollisionObject* obj1 =
            static_cast<btCollisionObject*>(proxy1->m_clientObject);

        // TODO: remove this check once it is confirmed that both objects must always exist
        if(obj0 && obj1) {

            PhysicsBody* body1 = static_cast<PhysicsBody*>(obj0->getUserPointer());
            PhysicsBody* body2 = static_cast<PhysicsBody*>(obj1->getUserPointer());

            if(body1 && body2) {

                const auto materialID1 = body1->GetPhysicalMaterialID();
                const auto materialID2 = body2->GetPhysicalMaterialID();

                // Find contact callbacks
                if(materialID1 >= 0 && materialID2 >= 0) {

                    auto pair = World->GetMaterialPair(materialID1, materialID2);

                    if(pair && pair->AABBCallback) {

                        return pair->AABBCallback(*World, *body1, *body2);
                    }
                }
            } else {
                LOG_ERROR("Physics body doesn't have user pointer");
            }

        } else {
            LOG_ERROR("Physics btCollisionObject doesn't exist");
        }

        // Needs collision
        return true;
    }

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The documentation for this class was generated from the following file:

• PhysicalWorld.cpp