package {
	import flash.display.*;
	import flash.events.*;
	import flash.ui.Keyboard;

	public class Tridraw extends MovieClip {
		public function Tridraw() {
			stage.addEventListener(MouseEvent.MOUSE_DOWN, clicked);
			stage.addEventListener(KeyboardEvent.KEY_DOWN, KeyPressed);
			var infoScreen:Info = new Info();
			stage.addChild(infoScreen);
			infoScreen.x=stage.stageWidth/2-infoScreen.width/2;
			infoScreen.y=stage.stageHeight/2-infoScreen.height/2;
		}

		private var points:int=0;
		private var newGame:Boolean=true;
		private var colors:Boolean=false;

		private var p1x:int=0;
		private var p1y:int=0;
		private var p2x:int=0;
		private var p2y:int=0;
		private var p3x:int=0;
		private var p3y:int=0;
		private var shade:int=0;

		private function clicked(e:MouseEvent):void {

			if (newGame) {
				stage.removeChildAt(1);
				newGame=false;
			}

			p3x=p2x;
			p3y=p2y;
			p2x=p1x;
			p2y=p1y;
			p1x=stage.mouseX;
			p1y=stage.mouseY;
			points++;

			if (points>2) {
				var triangleShape:Shape = new Shape();
				stage.addChild(triangleShape);
				if (colors) {
					triangleShape.graphics.beginFill(Math.round(Math.random()*0xFFFFFF));
				} else {
					shade=Math.round(Math.random()*200)+55;
					triangleShape.graphics.beginFill(rgb2hex(shade,shade,shade));
				}
				triangleShape.graphics.moveTo(p3x, p3y);
				triangleShape.graphics.lineTo(p2x, p2y);
				triangleShape.graphics.lineTo(p1x, p1y);
				triangleShape.graphics.endFill();
			}

		}

		private function rgb2hex(r,g,b):Number {
			return (r<<16 | g<<8 | b);
		}

		private function KeyPressed(e:KeyboardEvent):void {
			switch (e.keyCode) {
				case Keyboard.SPACE :
					while (stage.numChildren>1) {
						stage.removeChildAt(1);
					}
					points=0;
					p1x=0;
					p1y=0;
					p2x=0;
					p2y=0;
					p3x=0;
					p3y=0;
					break;
				case Keyboard.UP :
					colors=true;
					break;
				case Keyboard.DOWN :
					colors=false;
					break;
			}
		}
	}
}