/* * Copyright (c) 2006-2009 Erin Catto http://www.gphysics.com * * 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/Contacts/b2CircleContact.h> #include <Box2D/Dynamics/b2Body.h> #include <Box2D/Dynamics/b2Fixture.h> #include <Box2D/Dynamics/b2WorldCallbacks.h> #include <Box2D/Common/b2BlockAllocator.h> #include <Box2D/Collision/b2TimeOfImpact.h> #include <new> b2Contact* b2CircleContact::Create(b2Fixture* fixtureA, b2Fixture* fixtureB, b2BlockAllocator* allocator) { void* mem = allocator->Allocate(sizeof(b2CircleContact)); return new (mem) b2CircleContact(fixtureA, fixtureB); } void b2CircleContact::Destroy(b2Contact* contact, b2BlockAllocator* allocator) { ((b2CircleContact*)contact)->~b2CircleContact(); allocator->Free(contact, sizeof(b2CircleContact)); } b2CircleContact::b2CircleContact(b2Fixture* fixtureA, b2Fixture* fixtureB) : b2Contact(fixtureA, fixtureB) { b2Assert(m_fixtureA->GetType() == b2Shape::e_circle); b2Assert(m_fixtureB->GetType() == b2Shape::e_circle); } void b2CircleContact::Evaluate(b2Manifold* manifold, const b2Transform& xfA, const b2Transform& xfB) { b2CollideCircles(manifold, (b2CircleShape*)m_fixtureA->GetShape(), xfA, (b2CircleShape*)m_fixtureB->GetShape(), xfB); }