/**
* Adds an {@code Actor} to the {@code World} at the specified location.
*
* @param actor the {@code World} being added
* @param x the x location of the {@code Actor}
* @param y the y location of the {@code Actor}
*/
public void addActor(Actor actor, int x, int y) {
Guard.argumentIsNotNull(actor);
Guard.argumentsInsideBounds(x, y, width, height);
Guard.verifyState(!actor.bound());
Guard.verifyState(!actor.held());
actor.setWorld(this);
actor.setXY(x, y);
addToGrid(actor);
registerActor(actor);
}
