/******************************************************************************
 * Spine Runtime Software License - Version 1.1
 * 
 * Copyright (c) 2013, Esoteric Software
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms in whole or in part, with
 * or without modification, are permitted provided that the following conditions
 * are met:
 * 
 * 1. A Spine Essential, Professional, Enterprise, or Education License must
 *    be purchased from Esoteric Software and the license must remain valid:
 *    http://esotericsoftware.com/
 * 2. Redistributions of source code must retain this license, which is the
 *    above copyright notice, this declaration of conditions and the following
 *    disclaimer.
 * 3. Redistributions in binary form must reproduce this license, which is the
 *    above copyright notice, this declaration 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.
 *****************************************************************************/

using System;

namespace Spine {
	public class AtlasAttachmentLoader : AttachmentLoader {
		private Atlas atlas;

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

		public Attachment NewAttachment (Skin skin, AttachmentType type, String name) {
			switch (type) {
			case AttachmentType.region:
				AtlasRegion region = atlas.FindRegion(name);
				if (region == null) throw new Exception("Region not found in atlas: " + name + " (" + type + ")");
				RegionAttachment attachment = new RegionAttachment(name);
				attachment.RendererObject = region;
				attachment.SetUVs(region.u, region.v, region.u2, region.v2, region.rotate);
				attachment.regionOffsetX = region.offsetX;
				attachment.regionOffsetY = region.offsetY;
				attachment.regionWidth = region.width;
				attachment.regionHeight = region.height;
				attachment.regionOriginalWidth = region.originalWidth;
				attachment.regionOriginalHeight = region.originalHeight;
				return attachment;
			case AttachmentType.boundingbox:
				return new BoundingBoxAttachment(name);
			}
			throw new Exception("Unknown attachment type: " + type);
		}
	}
}