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/*
 * Copyright (c) 2009-2020 jMonkeyEngine
 * All rights reserved.
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 * 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
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 *   may be used to endorse or promote products derived from this software
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 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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package com.jme3.math;

import com.jme3.collision.Collidable;
import com.jme3.collision.CollisionResults;

/**
 * A Collidable with a triangular shape.
 */
public abstract class AbstractTriangle implements Collidable {
    /**
     * Determine the location of the first vertex.
     *
     * @return a location vector
     */
    public abstract Vector3f get1();

    /**
     * Determine the location of the 2nd vertex.
     *
     * @return a location vector
     */
    public abstract Vector3f get2();

    /**
     * Determine the location of the 3rd vertex.
     *
     * @return a location vector
     */
    public abstract Vector3f get3();

    /**
     * Alter all 3 vertex locations.
     *
     * @param v1 the location for the first vertex
     * @param v2 the location for the 2nd vertex
     * @param v3 the location for the 3rd vertex
     */
    public abstract void set(Vector3f v1, Vector3f v2, Vector3f v3);

    /**
     * Generate collision results for this triangle with another Collidable.
     *
     * @param other the other Collidable
     * @param results storage for collision results
     * @return the number of collisions found
     */
    @Override
    public int collideWith(Collidable other, CollisionResults results) {
        return other.collideWith(this, results);
    }
}