com.almasb.fxgl.physics.box2d.dynamics.contacts.ContactEdge Maven / Gradle / Ivy

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/*
 * FXGL - JavaFX Game Library. The MIT License (MIT).
 * Copyright (c) AlmasB ([email protected]).
 * See LICENSE for details.
 */
package com.almasb.fxgl.physics.box2d.dynamics.contacts;

import com.almasb.fxgl.physics.box2d.dynamics.Body;

/**
 * A contact edge is used to connect bodies and contacts together in a contact graph where each body
 * is a node and each contact is an edge. A contact edge belongs to a doubly linked list maintained
 * in each attached body. Each contact has two contact nodes, one for each attached body.
 *
 * @author daniel
 */
public class ContactEdge {

    /**
     * provides quick access to the other body attached.
     */
    public Body other = null;

    /**
     * the contact
     */
    public Contact contact = null;

    /**
     * the previous contact edge in the body's contact list
     */
    public ContactEdge prev = null;

    /**
     * the next contact edge in the body's contact list
     */
    public ContactEdge next = null;
}