====== State ======

===== Motivation =====
You want to adopt the [[finite state machine]] pattern because your game has many states and it becoming difficult to maintain.


===== Description =====
This is one half of the [[finite state machine]] pattern. This interface should act as a [[proxy]] for each of the methods which contain a lot of state specific code. For example, if you implement a lot of state code in render, update, and onCollision then you should include these methods in the interface defintion as follows:

<code java>
public interface State {
    /** Initialize the state whenever it is entered. */
    public void enter();
    /** Used by the StateManager. */
    public boolean equals(Object o);
    public void render(Graphics g);
    public void update(int delta);
    public void onCollision(Entity obstacle);
}
</code>

Obviously you should identify what methods are relevant for your needs and swap them in.