/// Evaluate this contact with your own manifold and transforms.
public void Evaluate(b2Manifold manifold, ref b2Transform xfA, ref b2Transform xfB)
{
switch (_type)
{
case ContactType.b2CircleContact:
b2Collision.b2CollideCircles(manifold, (b2CircleShape)FixtureA.Shape, ref xfA,
(b2CircleShape)FixtureB.Shape, ref xfB);
break;
case ContactType.b2PolygonAndCircleContact:
b2Collision.b2CollidePolygonAndCircle(manifold, (b2PolygonShape)FixtureA.Shape, ref xfA,
(b2CircleShape)FixtureB.Shape, ref xfB);
break;
case ContactType.b2PolygonContact:
b2Collision.b2CollidePolygons(manifold, (b2PolygonShape)FixtureA.Shape, ref xfA,
(b2PolygonShape)FixtureB.Shape, ref xfB);
break;
case ContactType.b2EdgeAndCircleContact:
b2Collision.b2CollideEdgeAndCircle(manifold, (b2EdgeShape)FixtureA.Shape, ref xfA,
(b2CircleShape)FixtureB.Shape, ref xfB);
break;
case ContactType.b2EdgeAndPolygonContact:
b2Collision.b2CollideEdgeAndPolygon(manifold, (b2EdgeShape)FixtureA.Shape, ref xfA,
(b2PolygonShape)FixtureB.Shape, ref xfB);
break;
case ContactType.b2ChainAndCircleContact:
b2ChainShape chain = (b2ChainShape)FixtureA.Shape;
b2EdgeShape edge;
edge = chain.GetChildEdge(m_indexA);
b2Collision.b2CollideEdgeAndCircle(manifold, edge, ref xfA, (b2CircleShape)FixtureB.Shape,
ref xfB);
break;
case ContactType.b2ChainAndPolygonContact:
chain = (b2ChainShape)FixtureA.Shape;
edge = chain.GetChildEdge(m_indexA);
b2Collision.b2CollideEdgeAndPolygon(manifold, edge, ref xfA, (b2PolygonShape)FixtureB.Shape,
ref xfB);
break;
default:
throw new ArgumentOutOfRangeException();
}
}
public override void Evaluate(b2Manifold manifold, b2Transform xfA, b2Transform xfB)
{
b2ChainShape chain = (b2ChainShape)m_fixtureA.GetShape();
b2EdgeShape edge = new b2EdgeShape();
chain.GetChildEdge(edge, m_indexA);
Utils.b2CollideEdgeAndPolygon(manifold, edge, xfA, (b2PolygonShape)m_fixtureB.GetShape(), xfB);
}
public override void Evaluate(ref b2Manifold manifold, ref b2Transform xfA, ref b2Transform xfB)
{
b2ChainShape chain = (b2ChainShape)m_fixtureA.Shape;
b2EdgeShape edge;
edge = chain.GetChildEdge(m_indexA);
b2Collision.b2CollideEdgeAndPolygon(ref manifold, edge, ref xfA,
(b2PolygonShape)m_fixtureB.Shape, ref xfB);
}