I want the rotation of the sprite. So that I used RotationModifier, but in that I have to specify the time interval you want the rotation. But I want to create rotation which was infinite. So please help me.
LoopEntityModifier is the way to go!
Not sure, but it may end as something like this:
LoopEntityModifier EntityModifier = new LoopEntityModifier( new RotationModifier(yourargs) );