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* Copyright (c) 2013, Daniel Murphy
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package org.jbox2d.dynamics.contacts;
import org.jbox2d.collision.Manifold;
import org.jbox2d.collision.shapes.ChainShape;
import org.jbox2d.collision.shapes.CircleShape;
import org.jbox2d.collision.shapes.EdgeShape;
import org.jbox2d.collision.shapes.ShapeType;
import org.jbox2d.common.Transform;
import org.jbox2d.dynamics.Fixture;
import org.jbox2d.pooling.IWorldPool;
public class ChainAndCircleContact extends Contact {
public ChainAndCircleContact(IWorldPool argPool) {
super(argPool);
}
@Override
public void init(Fixture fA, int indexA, Fixture fB, int indexB) {
super.init(fA, indexA, fB, indexB);
assert (m_fixtureA.getType() == ShapeType.CHAIN);
assert (m_fixtureB.getType() == ShapeType.CIRCLE);
}
private final EdgeShape edge = new EdgeShape();
@Override
public void evaluate(Manifold manifold, Transform xfA, Transform xfB) {
ChainShape chain = (ChainShape) m_fixtureA.getShape();
chain.getChildEdge(edge, m_indexA);
pool.getCollision().collideEdgeAndCircle(manifold, edge, xfA,
(CircleShape) m_fixtureB.getShape(), xfB);
}
}