flash on 2010-4-26

/**
 * Copyright 084 ( http://wonderfl.net/user/084 )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/A8ad
 */

package {
import flash.display.Sprite;
import flash.events.Event;
import flash.events.KeyboardEvent;
import flash.ui.Keyboard;
	public class ShipSim 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 ShipSim() {
		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, onDown);
		stage.addEventListener(KeyboardEvent.KEY_UP, onUp);
	}
	
	private function onDown(event:KeyboardEvent):void {
		switch(event.keyCode) {
			case Keyboard.LEFT:
			vr = -5;
			break;
			
			case Keyboard.RIGHT:
			vr = 5;
			break;
			
			case Keyboard.UP:
			thrust = 0.2;
			ship.draw(true);
			break;
			
			defalt;
			break;
		}
	}
	
	private function onUp(event:KeyboardEvent):void {
		vr = 0;
		thrust = 0;
		ship.draw(false);
	}
	private function onEnterFrame(event: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 {
			with (graphics) {
				clear();
				graphics.lineStyle(1, 0x000000);
				moveTo(10, 0);
				lineTo(-10, 10);
				lineTo(-5,0 );
				lineTo(-10, -10);
				lineTo(10, 0);
				
			if (showFlame) {
				with (graphics) {
					moveTo(-7.5, -5);
					lineTo(-15, 0);
					lineTo(-7.5, 5);
			}
		}
	}
}
}