void b2ContactManager::Destroy()

in Box2D/Dynamics/b2ContactManager.cpp [37:100]

• 49 lines of code
• 12 McCabe index (conditional complexity)

void b2ContactManager::Destroy(b2Contact* c)
{
	b2Fixture* fixtureA = c->GetFixtureA();
	b2Fixture* fixtureB = c->GetFixtureB();
	b2Body* bodyA = fixtureA->GetBody();
	b2Body* bodyB = fixtureB->GetBody();

	if (m_contactListener && c->IsTouching())
	{
		m_contactListener->EndContact(c);
	}

	// Remove from the world.
	if (c->m_prev)
	{
		c->m_prev->m_next = c->m_next;
	}

	if (c->m_next)
	{
		c->m_next->m_prev = c->m_prev;
	}

	if (c == m_contactList)
	{
		m_contactList = c->m_next;
	}

	// Remove from body 1
	if (c->m_nodeA.prev)
	{
		c->m_nodeA.prev->next = c->m_nodeA.next;
	}

	if (c->m_nodeA.next)
	{
		c->m_nodeA.next->prev = c->m_nodeA.prev;
	}

	if (&c->m_nodeA == bodyA->m_contactList)
	{
		bodyA->m_contactList = c->m_nodeA.next;
	}

	// Remove from body 2
	if (c->m_nodeB.prev)
	{
		c->m_nodeB.prev->next = c->m_nodeB.next;
	}

	if (c->m_nodeB.next)
	{
		c->m_nodeB.next->prev = c->m_nodeB.prev;
	}

	if (&c->m_nodeB == bodyB->m_contactList)
	{
		bodyB->m_contactList = c->m_nodeB.next;
	}

	// Call the factory.
	b2Contact::Destroy(c, m_allocator);
	--m_contactCount;
}