ActionList based on Ash EntityStateMachine

ActionList.as

package com.blackmoondev.ashes.fsm
{
import ash.fsm.EntityStateMachine;

public class ActionList implements IActionList
{
	public function ActionList( fsm : EntityStateMachine, states : Vector.<String> ) {
		this.fsm = fsm;
		this.states = states || new Vector.<String>();
	}

	private var fsm : EntityStateMachine;
	private var states : Vector.<String>;

	public function next() : void {
		fsm.changeState( states.shift() );
	}

	public function hasNext() : Boolean {
		return states.length > 0;
	}

	public function append( statesToAppend : Vector.<String>, removeAfterState : String = null ) : void {
		states.length = states.indexOf( removeAfterState );
		states = states.concat( statesToAppend );
	}
}
}

IActionList.as

package com.blackmoondev.ashes.fsm
{
public interface IActionList
{
	function next() : void;

	function hasNext() : Boolean;

	function append( statesToAppend : Vector.<String>, removeAfterState : String = null ) : void;
}
}