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/*******************************************************************************
 * Copyright 2011 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.graphics.g3d.loaders.md5;

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;

/** Represents an MD5 (Doom 3) skinned model. Note: The normal interpolation implementation is experimental. Using it will incur a
 * greater CPU overhead, and correct normals for dynamically lit models are not guaranteed at this time. Expert contribution for
 * this code is encouraged, please email Dave if you're interested in helping.
 * @author Mario Zechner , Nathan Sweet , Dave Clayton
 *          */
public class MD5Model {
	public int numJoints;
	public MD5Joints baseSkeleton;
	public MD5Mesh[] meshes;

	public int getNumVertices () {
		int numVertices = 0;

		for (int i = 0; i < meshes.length; i++)
			numVertices += meshes[i].numVertices;

		return numVertices;
	}

	public int getNumTriangles () {
		int numTriangles = 0;

		for (int i = 0; i < meshes.length; i++)
			numTriangles += meshes[i].numTriangles;

		return numTriangles;
	}

	public void read (DataInputStream in) throws IOException {
		numJoints = in.readInt();
		baseSkeleton = new MD5Joints();
		baseSkeleton.read(in);
		int numMeshes = in.readInt();
		meshes = new MD5Mesh[numMeshes];
		for (int i = 0; i < numMeshes; i++) {
			meshes[i] = new MD5Mesh();
			meshes[i].read(in);
		}
	}

	public void write (DataOutputStream out) throws IOException {
		out.writeInt(numJoints);
		baseSkeleton.write(out);
		out.writeInt(meshes.length);
		for (int i = 0; i < meshes.length; i++) {
			meshes[i].write(out);
		}
	}
}