/*******************************************************************************
 * Copyright (c) 2013, Esoteric Software
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 * 2. 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.
 * 
 * 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 OWNER 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 com.esotericsoftware.spine.attachments;

import com.esotericsoftware.spine.Skin;

import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.graphics.g2d.TextureAtlas.AtlasRegion;

public class AtlasAttachmentLoader implements AttachmentLoader {
	private TextureAtlas atlas;

	public AtlasAttachmentLoader (TextureAtlas atlas) {
		if (atlas == null) throw new IllegalArgumentException("atlas cannot be null.");
		this.atlas = atlas;
	}

	public Attachment newAttachment (Skin skin, AttachmentType type, String name) {
		Attachment attachment = null;
		switch (type) {
		case region:
			attachment = new RegionAttachment(name);
			break;
		case regionSequence:
			attachment = new RegionSequenceAttachment(name);
			break;
		default:
			throw new IllegalArgumentException("Unknown attachment type: " + type);
		}

		if (attachment instanceof RegionAttachment) {
			AtlasRegion region = atlas.findRegion(attachment.getName());
			if (region == null)
				throw new RuntimeException("Region not found in atlas: " + attachment + " (" + type + " attachment: " + name + ")");
			((RegionAttachment)attachment).setRegion(region);
		}

		return attachment;
	}
}