the libgdx render code for MD2 model used in Frog Ball

gistfile1.java

// private KeyframedModel currentModel;
// use ModelLoaderRegistry.loadKeyframedModel() to load MD2 models

// in render():

if (currentModel != desiredModel) {
  currentModel = desiredModel;
	animationTime = 0;
}
		
// fixed value for MD2 exporter from
// http://www.junaio.com/develop/docs/documenation/general/3dmodels/
String animation = "all";

animationTime += Gdx.graphics.getDeltaTime();
float totalDuration = currentModel.getAnimation(animation).totalDuration;
if (loop) {
	while (animationTime > totalDuration)
		animationTime -= totalDuration;
}
else {
	if (animationTime > totalDuration)
		animationTime = totalDuration - 0.000001f;  // libgdx crash when animationTime == totalDuration
}
currentModel.setAnimation(animation, animationTime, loop);
currentModel.render(shader);