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/*******************************************************************************
 * Copyright 2014 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.ai.utils;

import com.badlogic.gdx.math.Vector;

/** A {@code Ray} is made up of a starting point and an ending point.
 * 
 * @param  Type of vector, either 2D or 3D, implementing the {@link Vector} interface
 * 
 * @author davebaol */
public class Ray> {

	/** The starting point of this ray. */
	public T start;

	/** The ending point of this ray. */
	public T end;

	/** Creates a {@code Ray} with the given {@code start} and {@code end} points.
	 * @param start the starting point of this ray
	 * @param end the starting point of this ray */
	public Ray (T start, T end) {
		this.start = start;
		this.end = end;
	}

	/** Sets this ray from the given ray.
	 * @param ray The ray
	 * @return this ray for chaining. */
	public Ray set (Ray ray) {
		start.set(ray.start);
		end.set(ray.end);
		return this;
	}

	/** Sets this Ray from the given start and end points.
	 * @param start the starting point of this ray
	 * @param end the starting point of this ray
	 * @return this ray for chaining. */
	public Ray set (T start, T end) {
		this.start.set(start);
		this.end.set(end);
		return this;
	}
}