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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.tests.g3d;

import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.assets.AssetManager;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.PerspectiveCamera;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g3d.Model;
import com.badlogic.gdx.graphics.g3d.ModelBatch;
import com.badlogic.gdx.graphics.g3d.ModelInstance;
import com.badlogic.gdx.tests.utils.GdxTest;

public class ModelLoaderTest extends GdxTest {
	AssetManager assets;
	PerspectiveCamera camera;
	ModelInstance instance;
	ModelBatch modelBatch;
	SpriteBatch spriteBatch;

	@Override
	public void create () {
		camera = new PerspectiveCamera(67, Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
		camera.position.set(0, 0, 5);
		camera.near = 1;
		camera.far = 100;
		camera.update();
		assets = new AssetManager();
		assets.load("data/g3d/cube.g3dj", Model.class);
		spriteBatch = new SpriteBatch();
		modelBatch = new ModelBatch();
// assets.getLogger().setLevel(Logger.DEBUG);
	}

	private void doneLoading () {
		instance = new ModelInstance(assets.get("data/g3d/cube.g3dj", Model.class));
	}

	float counter;

	@Override
	public void render () {
		if ((instance != null) && ((counter += Gdx.graphics.getDeltaTime()) >= 1f)) {
			counter = 0f;
			instance = null;
			assets.unload("data/g3d/cube.g3dj");
			assets.load("data/g3d/cube.g3dj", Model.class);
			assets.finishLoading();
		}

		Gdx.gl.glClearColor(0.2f, 0.2f, 0.2f, 1);
		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);
		Gdx.gl.glEnable(GL20.GL_DEPTH_TEST);

		if (assets.update()) {
			doneLoading();
		}

		if (instance != null) {
			modelBatch.begin(camera);
			modelBatch.render(instance);
			modelBatch.end();
			spriteBatch.begin();
			spriteBatch.draw(assets.get("data/g3d/checkboard.png", Texture.class), 0, 0, 100, 100);
			spriteBatch.draw(assets.get("data/g3d/Knight.png", Texture.class), 100, 0, 100, 100);
			spriteBatch.end();
		}
	}

	@Override
	public void dispose () {
		assets.dispose();
		modelBatch.dispose();
		spriteBatch.dispose();
	}
}