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Java Collision Detection and Physics Engine

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/*
 * Copyright (c) 2010-2020 William Bittle  http://www.dyn4j.org/
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are permitted 
 * provided that the following conditions are met:
 * 
 *   * Redistributions of source code must retain the above copyright notice, this list of conditions 
 *     and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright notice, this list of conditions 
 *     and the following disclaimer in the documentation and/or other materials provided with the 
 *     distribution.
 *   * Neither the name of the copyright holder nor the names of its contributors may be used to endorse or 
 *     promote products derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR 
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 
 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.dyn4j.collision.narrowphase;

import org.dyn4j.geometry.Convex;

/**
 * Represents a condition that returns true to indicate a fallback {@link NarrowphaseDetector}
 * should be used instead of the primary.
 * 
 * Note: implementing classes may have a natural ordering that is inconsistent with equals.
 * @author William Bittle
 * @version 3.1.5
 * @since 3.1.5
 */
public interface FallbackCondition extends Comparable {
	/**
	 * Returns true if this condition matches the given input.
	 * @param convex1 the first {@link Convex}
	 * @param convex2 the second {@link Convex}
	 * @return boolean
	 */
	public abstract boolean isMatch(Convex convex1, Convex convex2);
	
	/**
	 * Returns the sort index for this condition.
	 * @return int
	 */
	public abstract int getSortIndex();
}