Method DestroyJoint

DynamicsB2World.go:337–416

(j B2JointInterface)

}

func (world *B2World) DestroyJoint(j B2JointInterface) { // j backed by pointer
	B2Assert(world.IsLocked() == false)
	if world.IsLocked() {
		return
	}

	collideConnected := j.IsCollideConnected()

	// Remove from the doubly linked list.
	if j.GetPrev() != nil {
		j.GetPrev().SetNext(j.GetNext())
	}

	if j.GetNext() != nil {
		j.GetNext().SetPrev(j.GetPrev())
	}

	if j == world.M_jointList {
		world.M_jointList = j.GetNext()
	}

	// Disconnect from island graph.
	bodyA := j.GetBodyA()
	bodyB := j.GetBodyB()

	// Wake up connected bodies.
	bodyA.SetAwake(true)
	bodyB.SetAwake(true)

	// Remove from body 1.
	if j.GetEdgeA().Prev != nil {
		j.GetEdgeA().Prev.Next = j.GetEdgeA().Next
	}

	if j.GetEdgeA().Next != nil {
		j.GetEdgeA().Next.Prev = j.GetEdgeA().Prev
	}

	if j.GetEdgeA() == bodyA.M_jointList {
		bodyA.M_jointList = j.GetEdgeA().Next
	}

	j.GetEdgeA().Prev = nil
	j.GetEdgeA().Next = nil

	// Remove from body 2
	if j.GetEdgeB().Prev != nil {
		j.GetEdgeB().Prev.Next = j.GetEdgeB().Next
	}

	if j.GetEdgeB().Next != nil {
		j.GetEdgeB().Next.Prev = j.GetEdgeB().Prev
	}

	if j.GetEdgeB() == bodyB.M_jointList {
		bodyB.M_jointList = j.GetEdgeB().Next
	}