class Player extends AnimatedEntity {
 constructor(){
    this.movementMachine = new MovementStepMachine();

    let animationIdle = new Animation(spriteSheet, speed = speedPlayer);

    ...

    this.movementStateAnimations = {
        [ MovementState.Idle, animationIdle ],
        [ MovementState.WalkRight, animationWalkRight ],
        [ MovementState.WalkLeft, animationWalkLeft ],
    };
 }

 //Override
 update(dt){
    //Procesamos todo el movimiento y cambio de estado.
    this.movementMachine.updateMovement();
    this.movementMachine.updateState();

    //CurrentAnimation es parte de AnimatedEntity (deberia... no?)
    this.currentAnimation = this.movementStateAnimations[this.movementMachine.MovementState];

    //Seteando el currentAnimation y luego llamando al update de la AnimatedEntity (super == parent == clase base)
    //Se anima con la animacion actual
    super.update(dt);
 }

}