package {
	import flash.display.*;
	import flash.events.*;
	import flash.text.TextField;
	
	//發送事件
	/*
	public class Example extends EventDispatcher
	{
		...
	}
	*/
	
	//import mx.events.ModuleEvent;
	//[SWF(width = "500", height = "500", backgroundColor = "#ffcfdf", frameRate = "31")]
	public class eofFlex extends Sprite
	{
		private var _sprite:Sprite;    //私有變量。按照習慣約定，private和protected都在前面加上下劃線“_”
		private var _square:Sprite;
		private var _circle:Sprite
		private var _label:TextField;
		
		public function eofFlex()
		{
			//調用其他成員函數
			//testDraw();
			
			//如何調試？
			//var userName:String = "Bill Smith";
			//trace("My name is " + userName + ".");
			
			//處理事件
			//graphics.lineStyle(1, 0, 1);
			//addEventListener(Event.ENTER_FRAME, onEnterFrame);
			
			//響應鼠標和鍵盤事件
			/*
			_sprite = new Sprite();
			addChild(_sprite);
			_sprite.graphics.beginFill(0xffffff);
			_sprite.graphics.drawRect(100, 100, 200, 200);
			_sprite.graphics.drawCircle(100, 100, 50);
			_sprite.graphics.endFill();
			
			_sprite.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
			_sprite.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
			
			stage.focus = this;
			addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
			*/
			
			/*
			var quantity:int = 5;
			if (quantity is int)  //判斷是否為int類型
			{
				trace("Yippee. It's an integer.");
			}
			*/
			
			//長時間執行一個任務
			_square = new Sprite();
			_square.graphics.beginFill(0xff0000);
			_square.graphics.drawRect(0, 0, 100, 100);
			_square.graphics.endFill();
			//addChild(_square);
			_square.x = 100;
			_square.y = 50;
			
			_circle = new Sprite();
			_circle.graphics.beginFill(0x0000ff);
			_circle.graphics.drawCircle(50, 50, 50);
			_circle.graphics.endFill();
			//addChild(_circle);
			_circle.x = 100;
			_circle.y = 200;
		
			//創建兩個定時器，啟動
			//var squareTimer:Timer = new Timer(50, 0);
			//squareTimer.addEventListener(TimerEvent.TIMER, onSquareTimer);
			//squareTimer.start();
			
			//var circleTimer:Timer = new Timer(100, 0);
			//circleTimer.addEventListener(TimerEvent.TIMER, onCircleTimer);
			//circleTimer.start();
			
			//在可視化對象列表中添加項目
			var hello:TextField = new TextField();
			hello.text = "Hello, ayou!";
			addChild(hello);
			
			var hi:TextField = new TextField();
			hi.text = "Hi, ayou!";
			hi.x = 50;
			hi.y = 60;
			
			var container:Sprite = new Sprite();
			container.addChild(hi);
			DisplayObjectContainer(root).addChild(container);
			
			//可視化對象的深度
			var red:Shape = createCircle(0xff0000, 10);
			red.x = 10;
			red.y = 20;
			
			var green:Shape = createCircle(0x00ff00, 10);
			green.x = 15; 
			green.y = 25;
			
			var blue:Shape = createCircle(0x0000ff, 10);
			blue.x = 20; 
			blue.y = 20;
			
			addChild(red);
			addChildAt(green, 1);
			addChild(blue);
			
			//在可視化對象列表中刪除項目
			_label = new TextField();
			_label.text = "Some Text!!!!!!!!!!!!!!!!!!!!!!!1";
			addChild(_label);
			//stage.addEventListener(MouseEvent.CLICK, removeLabel);
			
			//創建自定義可視化類
			//圖形類：繼承Shape
			//按鈕:繼承SimpleButton
			//不需要時間線的容納其他對象的容器:繼承Sprite
			//需要時間線的容納其他對象的容器:繼承MovieClip
			var testCircle:Circle = new Circle(0xff0000, 100);
			testCircle.x = 200;
			testCircle.y = 200;
			//addChild(testCircle);
			
			//創建簡單的按鈕
			var button:SimpleButton = new SimpleButton();
			button.x = 300;
			button.y = 300;
			button.upState = createBtCircle(0x00ff00, 15);
			button.overState = createBtCircle(0xffffff, 16);
			button.downState = createBtCircle(0xcccccc, 15);
			
			button.hitTestState = button.upState;
			//button.hitTestState = createBtCircle(0x000000, 20);
			button.addEventListener(MouseEvent.CLICK, handleClick);
			addChild(button);
		}
		
		private function testDraw():void
		{
			graphics.lineStyle(1, 0, 1);
			for (var i:int = 0; i < 100; i++)
			{
				graphics.lineTo(Math.random() * 400, Math.random() * 400);
			}
		}
		
		private function onEnterFrame(event:Event):void
		
		{
			graphics.lineTo(Math.random() * 400, Math.random() * 400);
			//_sprite.rotation += 5;
		}
		
		private function onMouseDown(event:MouseEvent):void
		{
			_sprite.graphics.lineStyle(1, 0, 1);
			_sprite.graphics.moveTo(mouseX, mouseY);
			_sprite.addEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
		}
		
		private function onMouseUp(event:MouseEvent):void
		{
			_sprite.removeEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
		}
		
		private function onKeyDown(event:KeyboardEvent):void
		{
			trace("Key down: " + event.charCode);
		}
		
		private function onMouseMove(event:MouseEvent):void
		{
			_sprite.graphics.lineTo(mouseX, mouseY);
		}		
		
		private function onSquareTimer(event:TimerEvent):void
		{
			_square.x++;
		}
		
		private function onCircleTimer(event:TimerEvent):void
		{
			_circle.x++;
		}
		
		private function createCircle(color:uint, radius:Number):Shape
		{
			var shape:Shape = new Shape();
			shape.graphics.beginFill(color);
			shape.graphics.drawCircle(0, 0, radius);
			shape.graphics.endFill();
			return shape;
		}
		
		private function removeLabel(event:MouseEvent):void
		{
			//removeChild(_label);
			if (numChildren > 0)
			{
				removeChildAt(0);
			}
		}
		
		private function createBtCircle(color:uint, radius:Number):Shape
		{
			var circle:Shape = new Shape();
			circle.graphics.lineStyle(1, 0x000000);
			circle.graphics.beginFill(color);
			circle.graphics.drawCircle(0, 0, radius);
			circle.graphics.endFill();
			return circle;
		}
		
		private function handleClick(event:MouseEvent):void
		{
			trace("Mouse clicked on the button.");
		}
	}
}