<?xml version="1.0" encoding="utf-8"?>

<Screen name="AnimationTest" descriptors="xworker.libgdx.Screen">
    <actions>
        <GroovyAction name="render">
            <code><![CDATA[import com.badlogic.gdx.Gdx;

batch.begin();
for (int i = 0; i < cavemen.length; i++) {
	def caveman = cavemen[i];
	def frame = caveman.headsLeft ? leftWalk.getKeyFrame(caveman.stateTime, true) : rightWalk.getKeyFrame(
				caveman.stateTime, true);
	batch.draw(frame, caveman.pos.x, caveman.pos.y);
}
batch.end();

for (int i = 0; i < cavemen.length; i++) {
	cavemen[i].update(Gdx.graphics.getDeltaTime());
}

fpsLog.log();]]></code>
        </GroovyAction>
    </actions>
    <Resources>
        <FileResource name="texture" type="texture" file="\data\walkanim.png"></FileResource>
        <SpriteBatch name="batch" constructor="default"></SpriteBatch>
        <FPSLogger name="fpsLog" _xmeta_id_="log"></FPSLogger>
    </Resources>
    <Code name="init">
        <code><![CDATA[import com.badlogic.gdx.Gdx;
import com.badlogic.gdx.graphics.FPSLogger;
import com.badlogic.gdx.graphics.GL20;
import com.badlogic.gdx.graphics.Texture;
import com.badlogic.gdx.graphics.g2d.Animation;
import com.badlogic.gdx.graphics.g2d.SpriteBatch;
import com.badlogic.gdx.graphics.g2d.TextureRegion;
import com.badlogic.gdx.math.Vector2;

TextureRegion[] leftWalkFrames = TextureRegion.split(texture, 64, 64)[0];
TextureRegion[] rightWalkFrames = new TextureRegion[leftWalkFrames.length];
for (int i = 0; i < rightWalkFrames.length; i++) {
	TextureRegion frame = new TextureRegion(leftWalkFrames[i]);
	frame.flip(true, false);
	rightWalkFrames[i] = frame;
}
leftWalk = new Animation(0.25f, leftWalkFrames);
rightWalk = new Animation(0.25f, rightWalkFrames);

cavemen = new Caveman[100];
for (int i = 0; i < 100; i++) {
	cavemen[i] = new Caveman((float)Math.random() * Gdx.graphics.getWidth(),
				(float)Math.random() * Gdx.graphics.getHeight(), Math.random() > 0.5 ? true : false);
}
		
class Caveman{
        static final float VELOCITY = 20;
		public final Vector2 pos;
		public final boolean headsLeft;
		public float stateTime;

		public Caveman (float x, float y, boolean headsLeft) {
			pos = new Vector2().set(x, y);
			this.headsLeft = headsLeft;
			this.stateTime = (float)Math.random();
		}

		public void update (float deltaTime) {
			stateTime += deltaTime;
			pos.x = pos.x + (headsLeft ? -VELOCITY * deltaTime : VELOCITY * deltaTime);
			if (pos.x < -64) pos.x = Gdx.graphics.getWidth();
			if (pos.x > Gdx.graphics.getWidth() + 64) pos.x = -64;
		}
}]]></code>
    </Code>
</Screen>