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Spine Runtime for libGDX
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/******************************************************************************
 * Spine Runtimes License Agreement
 * Last updated January 1, 2020. Replaces all prior versions.
 *
 * Copyright (c) 2013-2020, Esoteric Software LLC
 *
 * Integration of the Spine Runtimes into software or otherwise creating
 * derivative works of the Spine Runtimes is permitted under the terms and
 * conditions of Section 2 of the Spine Editor License Agreement:
 * http://esotericsoftware.com/spine-editor-license
 *
 * Otherwise, it is permitted to integrate the Spine Runtimes into software
 * or otherwise create derivative works of the Spine Runtimes (collectively,
 * "Products"), provided that each user of the Products must obtain their own
 * Spine Editor license and redistribution of the Products in any form must
 * include this license and copyright notice.
 *
 * THE SPINE RUNTIMES ARE PROVIDED BY ESOTERIC SOFTWARE LLC "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 ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES,
 * BUSINESS INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) 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
 * THE SPINE RUNTIMES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *****************************************************************************/

package com.esotericsoftware.spine.attachments;

import static com.esotericsoftware.spine.utils.SpineUtils.*;

import com.badlogic.gdx.graphics.Color;

import com.esotericsoftware.spine.PathConstraint;

/** An attachment whose vertices make up a composite Bezier curve.
 * 
 * See {@link PathConstraint} and Paths in the Spine User Guide. */
public class PathAttachment extends VertexAttachment {
	float[] lengths;
	boolean closed, constantSpeed;

	// Nonessential.
	final Color color = new Color(1, 0.5f, 0, 1); // ff7f00ff

	public PathAttachment (String name) {
		super(name);
	}

	/** If true, the start and end knots are connected. */
	public boolean getClosed () {
		return closed;
	}

	public void setClosed (boolean closed) {
		this.closed = closed;
	}

	/** If true, additional calculations are performed to make computing positions along the path more accurate and movement along
	 * the path have a constant speed. */
	public boolean getConstantSpeed () {
		return constantSpeed;
	}

	public void setConstantSpeed (boolean constantSpeed) {
		this.constantSpeed = constantSpeed;
	}

	/** The lengths along the path in the setup pose from the start of the path to the end of each Bezier curve. */
	public float[] getLengths () {
		return lengths;
	}

	public void setLengths (float[] lengths) {
		this.lengths = lengths;
	}

	/** The color of the path as it was in Spine, or a default color if nonessential data was not exported. Paths are not usually
	 * rendered at runtime. */
	public Color getColor () {
		return color;
	}

	public Attachment copy () {
		PathAttachment copy = new PathAttachment(name);
		copyTo(copy);
		copy.lengths = new float[lengths.length];
		arraycopy(lengths, 0, copy.lengths, 0, lengths.length);
		copy.closed = closed;
		copy.constantSpeed = constantSpeed;
		copy.color.set(color);
		return copy;
	}
}