public void ComputeOldWorldManifold(out Vector2 normal, out IList <WorldPoint> points)
{
if (OldManifold.PointCount < 1)
{
normal = Vector2.Zero;
points = new FixedArray2 <WorldPoint>();
return;
}
var bodyA = Contact.FixtureA.Body;
var bodyB = Contact.FixtureB.Body;
var transformA = bodyA.Transform;
var transformB = bodyB.Transform;
var radiusA = Contact.FixtureA.Radius;
var radiusB = Contact.FixtureB.Radius;
FixedArray2 <WorldPoint> worldPoints;
OldManifold.ComputeWorldManifold(
transformA,
radiusA,
transformB,
radiusB,
out normal,
out worldPoints);
worldPoints.Count = OldManifold.PointCount;
points = worldPoints;
}