Source.java

/*******************************************************************************
 * 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.collada;

import com.badlogic.gdx.utils.GdxRuntimeException;
import com.badlogic.gdx.utils.XmlReader.Element;

public class Source {
	String id;
	int components;
	int count;
	float[] data;

	public Source (Element source) {
		this.id = source.getAttribute("id");
		parseComponents(source);
	}

	private void parseComponents (Element source) {
		Element floatArray = source.getChildByName("float_array");
		Element technique = source.getChildByName("technique_common");
		if (floatArray == null) throw new GdxRuntimeException("no <float_array> element in source '" + id + "'");
		if (technique == null) throw new GdxRuntimeException("no <technique_common> element in source '" + id + "'");
		Element accessor = technique.getChildByName("accessor");
		if (accessor == null) throw new GdxRuntimeException("no <accessor> element in source '" + id + "'");

		// read number of elements, number of components per element (e.g. 3 for x, y, z)
		data = new float[Integer.parseInt(floatArray.getAttribute("count"))];
		count = Integer.parseInt(accessor.getAttribute("count"));
		components = Integer.parseInt(accessor.getAttribute("stride"));

		// read elements into data[]
		String[] tokens = floatArray.getText().split("\\s+");
		for (int i = 0; i < tokens.length; i++) {
			data[i] = Float.parseFloat(tokens[i]);
		}
	}
}