WorldManifold.java

/*******************************************************************************
 * Copyright 2011 See AUTHORS file.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations under the License.
 ******************************************************************************/

package com.badlogic.gdx.physics.box2d;

import com.badlogic.gdx.math.Vector2;

/** This is used to compute the current state of a contact manifold. */
public class WorldManifold {
	protected final Vector2 normal = new Vector2();
	protected final Vector2[] points = { new Vector2(), new Vector2() };
	protected int numContactPoints;

	protected WorldManifold() {
	}

	/** Returns the normal of this manifold */
	public Vector2 getNormal() {
		return normal;
	}

	/**
	 * Returns the contact points of this manifold. Use getNumberOfContactPoints to determine how many contact points
	 * there are (0,1 or 2)
	 */
	public Vector2[] getPoints() {
		return points;
	}

	/** @return the number of contact points */
	public int getNumberOfContactPoints() {
		return numContactPoints;
	}
}