The previous post showed an example of create a Sprite object that would animate through BitmapData manipulation. In order for that to work, you’ll need to a ‘controller’ class that handles key input and user interaction. The follow is the code that will turn your sprite into a moving character.

Source code follows:

package {
	import Game.Actor;

	import flash.display.Sprite;
	import flash.events.Event;
	import flash.events.KeyboardEvent;

	public class BoyWonder extends Sprite
	{

		private var f:Actor;

		public function BoyWonder()
		{
			stage.stageHeight = 550; // stage is 550 pixels wide
			stage.stageWidth = 400; // 400 pixels high
			stage.frameRate = 30; // running at 30 frames per secon.
			addEventListener(Event.ENTER_FRAME, update); // each frame execute update method.
			stage.addEventListener(KeyboardEvent.KEY_DOWN, handleKeyDown); // when key is pressed
			stage.addEventListener(KeyboardEvent.KEY_UP, handleKeyUp); // when key is released

			f = new Actor(); // I don't know why I called it f : - )

			addChild(f);
		}

		public function update(evt:Event):void {			

			f.doAction(); // update the actor. This method moves the character and advances the frame.
		}

		public function handleKeyDown(evt:KeyboardEvent):void { // if keys are pressed, change the direction of the characters.
			if (evt.keyCode == 37) {
				f.setDir(0);
			}
			if (evt.keyCode == 38) {
				f.setDir(2);
			}
			if (evt.keyCode == 39) {
				f.setDir(1);
			}
			if (evt.keyCode == 40) {
				f.setDir(3);
			}
		}

		public function handleKeyUp(evt:KeyboardEvent):void {
			//trace('key-up!'+ evt.keyCode);		

		}
	}
}