/// <summary> /// Destroy a fixture. This removes the fixture from the broad-phase and /// destroys all contacts associated with this fixture. This will /// automatically adjust the mass of the body if the body is dynamic and the /// fixture has positive density. /// All fixtures attached to a body are implicitly destroyed when the body is destroyed. /// Warning: This function is locked during callbacks. /// </summary> /// <param name="fixture">The fixture to be removed.</param> public void DestroyFixture(Fixture fixture) { Debug.Assert(fixture.Body == this); // Remove the fixture from this body's singly linked list. Debug.Assert(FixtureList.Count > 0); #if DEBUG // You tried to remove a fixture that not present in the fixturelist. Debug.Assert(FixtureList.Contains(fixture)); #endif // Destroy any contacts associated with the fixture. ContactEdge edge = ContactList; while (edge != null) { Contact c = edge.Contact; edge = edge.Next; Fixture fixtureA = c.FixtureA; Fixture fixtureB = c.FixtureB; if (fixture == fixtureA || fixture == fixtureB) { // This destroys the contact and removes it from // this body's contact list. World.ContactManager.Destroy(c); } } if ((Flags & BodyFlags.Enabled) == BodyFlags.Enabled) { BroadPhase broadPhase = World.ContactManager.BroadPhase; fixture.DestroyProxies(broadPhase); } FixtureList.Remove(fixture); fixture.Destroy(); fixture.Body = null; ResetMassData(); }