libGDX sample

MyGdxGame.java

package name.taoka.ugeee.basicgraphics;

import com.badlogic.gdx.ApplicationAdapter;
import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureAtlas;
import com.badlogic.gdx.graphics.g2d.TextureAtlas.AtlasRegion;
import com.badlogic.gdx.utils.Timer;
import com.badlogic.gdx.utils.Timer.Task;

public class MyGdxGame extends ApplicationAdapter {
	SpriteBatch batch;
	private Sprite sprite;
	private TextureAtlas textureAtlas;
	private int currentFrame = 1;
	private String currentAtlasKey = new String("jet01");

	@Override
	public void create() {
		batch = new SpriteBatch();
		textureAtlas = new TextureAtlas(Gdx.files.internal("spritesheet.atlas"));
		AtlasRegion region = textureAtlas.findRegion("jet01");
		sprite = new Sprite(region);
		sprite.setPosition(120, 100);
		sprite.scale(2.5f);
		Timer.schedule(new Task() {
			@Override
			public void run() {
				currentFrame++;
				if (currentFrame > 20) {
					currentFrame = 1;
				}
				// 注意！String.fromat() はhtml(GWT)プロジェクトでは動きません
				currentAtlasKey = String.format("jet%02d", currentFrame);
				sprite.setRegion(textureAtlas.findRegion(currentAtlasKey));
			}
		}, 0, 1 / 30.0f);
	}

	@Override
	public void render() {
		// 黒(R=0,G=0,B=0)で初期化
		Gdx.gl.glClearColor(0, 0, 0, 1);
		Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

		batch.begin();
		sprite.draw(batch);
		batch.end();
	}

	@Override
	public void dispose() {
		batch.dispose();
		textureAtlas.dispose();
	}
}