flash on 2009-11-18

/**
 * Copyright terra1119 ( http://wonderfl.net/user/terra1119 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/rgvH
 */

package {
	import flash.display.Sprite;
	import flash.events.Event;
	import flash.events.KeyboardEvent;
	import flash.ui.Keyboard;
	[SWF(width="465", height="465", backgroundColor="#000000", frameRate="20")]
	public class FlashTest extends Sprite {
		private var ship:Ship;
		private var vr:Number = 0;
		private var thrust:Number = 0;
		private var vx:Number = 0;
		private var vy:Number = 0;
		
		public function FlashTest() {
			init();
		}
		
		private function init():void
		{
			ship = new Ship();
			addChild(ship);
			ship.x = stage.stageWidth / 2;
			ship.y = stage.stageHeight / 2;
			addEventListener(Event.ENTER_FRAME, onEnterFrame);
			stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
			stage.addEventListener(KeyboardEvent.KEY_UP, onKeyUp);
		}
		
		private function onKeyDown(e:KeyboardEvent):void 
		{
			switch(e.keyCode) {
				case Keyboard.LEFT:
				vr = -5;
				break;
				
				case Keyboard.RIGHT:
				vr = 5;
				break;
				
				case Keyboard.UP:
				thrust = 0.2;
				ship.draw(true);
				break;
				
				default:
				break;
			}
		}
		
		private function onKeyUp(e:KeyboardEvent):void 
		{
			vr = 0;
			thrust = 0;
			ship.draw(false);
		}
		
		private function onEnterFrame(e:Event):void 
		{
			ship.rotation += vr;
			var angle:Number = ship.rotation * Math.PI / 180;
			var ax:Number = Math.cos(angle) * thrust;
			var ay:Number = Math.sin(angle) * thrust;
			vx += ax;
			vy += ay;
			ship.x += vx;
			ship.y += vy;
		}
	}
}

import flash.display.Sprite;
class Ship extends Sprite
{
		
	public function Ship() 
	{
		draw(false);
	}
		
	public function draw(showFlame:Boolean):void
	{
		graphics.clear();
		graphics.lineStyle(1, 0xffffff);
		graphics.moveTo(10, 0);
		graphics.lineTo( -10, 10);
		graphics.lineTo( -5, 0);
		graphics.lineTo( -10, -10);
		graphics.lineTo(10, 0);
		if (showFlame) {
			graphics.lineTo( -7.5, -5);
			graphics.lineTo( -15, 0);
			graphics.lineTo( -7.5, 5);
		}
	}	
}