/*-------------------------
*Pong Class
*Developed by Carloz.Yanez
*Creates a Pong Game
--------------------------*/

package
{
	import flash.display.*;
	import flash.ui.Mouse;
	import flash.events.TimerEvent;
	import flash.events.MouseEvent;
	import flash.text.TextField;
	import flash.text.TextFieldType;
	import flash.text.TextFormat;
	import flash.text.TextFieldAutoSize;
	import flash.utils.Timer;
	
	public class Pong extends MovieClip
	{
		public function Pong(bgColor:uint = 0x000000, playerColor:uint = 0xFFFFFF, enemyColor:uint = 0xFFFFFF, ballColor:uint = 0xFFFFFF, middleLineColor:uint = 0xFFFFFF, ballSpeed:int = 2, scoreColor:uint = 0xFFFFFF, msgColor:uint = 0xFFFFFF, msg:String = "Click here to start", scoreFont:String = "Arial", scoreSize:int = 30):void
		{
			//No Context menu
			
			stage.showDefaultContextMenu = false;
			
			//Stage Constants for Scaling
			
			const STAGE_WIDTH:int = stage.stageWidth;
			const STAGE_HEIGHT:int = stage.stageHeight;
			
			//Create a Background
			
			var bg:MovieClip = new MovieClip();
			
			bg.graphics.beginFill(bgColor);
			bg.graphics.drawRect(0, 0, STAGE_WIDTH, STAGE_HEIGHT);
			bg.graphics.endFill();
			
			addChild(bg);
			
			//Create the Player and set its position
			
			var player:MovieClip = new MovieClip();
			
			player.graphics.beginFill(playerColor);
			player.graphics.drawRect(0, 0, 8, 50);
			player.graphics.endFill();
			
			player.x = player.width;
			player.y = (STAGE_HEIGHT / 2) - (player.height / 2);
			
			addChild(player);
			
			//Create the Enemy and set its position
			
			var enemy:MovieClip = new MovieClip();
			
			enemy.graphics.beginFill(enemyColor);
			enemy.graphics.drawRect(0, 0, 8, 50);
			enemy.graphics.endFill();
			
			enemy.x = STAGE_WIDTH - enemy.width * 2;
			enemy.y = (STAGE_HEIGHT / 2) - (enemy.height / 2);
			
			addChild(enemy);
			
			//Create the Ball and set its position
			
			var ball:MovieClip = new MovieClip();
			
			ball.graphics.beginFill(ballColor);
			ball.graphics.drawRect(0, 0, 10, 10);
			ball.graphics.endFill();
			
			ball.x = STAGE_WIDTH / 2 - ball.width / 2;
			ball.y = STAGE_HEIGHT / 2 - ball.height / 2;
			
			addChild(ball);
			
			//Create the Middle line in stage
			
			var middleLine:MovieClip = new MovieClip();
			
			middleLine.graphics.lineStyle(2, middleLineColor);
			middleLine.graphics.lineTo(0, STAGE_HEIGHT);
			
			middleLine.x = STAGE_WIDTH / 2;
			middleLine.y = 0;
			
			addChild(middleLine);
			
			//Set the Player´s movement to Mouse
			
			function playerMovement(event:TimerEvent):void
			{
				player.y = mouseY - player.height / 2;
				
				if(player.y >= STAGE_HEIGHT - player.height)
				{
					player.y = STAGE_HEIGHT - player.height;
				}
				
				if(player.y <= 0)
				{
					player.y = 0;
				}
			}
			
			//Enemy movement AI
			
			//enemy.speed = Math.floor(Math.random() * (5) + 1);
			
			function enemyAI(event:TimerEvent):void
			{
				/*if(ball.x >= middleLine.x && ball.y >= (STAGE_HEIGHT / 2))
				{
					enemy.y += enemy.speed;
				}
				
				if(ball.x >= middleLine.x && ball.y <= (STAGE_HEIGHT / 2))
				{
					enemy.y -= enemy.speed;
				}*/
				
				enemy.y = ball.y - enemy.height / 2;//Invinsible mode
				
				if(enemy.y >= STAGE_HEIGHT - enemy.height)
				{
					enemy.y = STAGE_HEIGHT - enemy.height;
				}
				
				if(enemy.y <= 0)
				{
					enemy.y = 0;
				}
			}
			
			//Ball movement
			
			ball.speed = ballSpeed;
			ball.dir = 0;
			player.score = 0;
			enemy.score = 0;
			
			function ballMovement(event:TimerEvent):void
			{
				if(playin)
				{
					ball.x -= ball.speed;
					ball.y -= ball.dir;
				}
				
				if(ball.x <= player.x)
				{
					enemy.score++;
					restart();
				}
				
				if(ball.x >= enemy.x)
				{
					player.score++;
					restart();
				}
				
				if(ball.y > (STAGE_HEIGHT - ball.height / 2))
				{
					ball.dir *= -1;
				}
				
				if(ball.y < ball.height / 2)
				{
					ball.dir *= -1;
				}
			}
			
			//Hit Testing
			
			function checkHit(event:TimerEvent):void
			{
				if(ball.hitTestObject(player) || ball.hitTestObject(enemy))
				{
					ball.speed *= -1;
					ball.dir = (Math.random() * 1) + (Math.random() * -1);
					//enemy.speed = Math.floor(Math.random() * (5) + 1);
				}
			}
			
			//Score handler
			
			var scoreFormat:TextFormat = new TextFormat();
			
			scoreFormat.color = scoreColor;
			scoreFormat.font = scoreFont;
			scoreFormat.size = scoreSize;
			
			var playerScore:TextField = new TextField();
			
			playerScore.autoSize = TextFieldAutoSize.CENTER;
			playerScore.x = STAGE_WIDTH / 4;
			playerScore.y = STAGE_HEIGHT / 10;
			playerScore.selectable = false;
			playerScore.defaultTextFormat = scoreFormat;
			playerScore.type = TextFieldType.DYNAMIC;
			
			addChild(playerScore);
			
			var enemyScore:TextField = new TextField();
			
			enemyScore.autoSize = TextFieldAutoSize.CENTER;
			enemyScore.x = (STAGE_WIDTH) - (STAGE_WIDTH / 4)
			enemyScore.y = STAGE_HEIGHT / 10;
			enemyScore.selectable = false;
			enemyScore.defaultTextFormat = scoreFormat;
			enemyScore.type = TextFieldType.DYNAMIC;
			
			addChild(enemyScore);
			
			function scoreHandler(event:TimerEvent)
			{
				playerScore.text = player.score;
				enemyScore.text = enemy.score;
			}
			
			//Start Message
			
			var startMsg:TextField = new TextField();
			
			var startFormat:TextFormat = new TextFormat();
			
			startFormat.color = msgColor;
			startFormat.bold = true;
			
			startMsg.x = 0;
			startMsg.y = (STAGE_HEIGHT) - (STAGE_HEIGHT / 12);
			startMsg.selectable = false;
			startMsg.type = TextFieldType.DYNAMIC;
			startMsg.defaultTextFormat = startFormat;
			startMsg.text = msg;
			
			addChild(startMsg);
			
			//Start handler
			
			var playin:Boolean = false;
			
			function startHandler(event:MouseEvent):void
			{
				Mouse.hide();
				playin = true;
				timer.start();
				startMsg.text = "";
			}
			
			//Restart function
			
			function restart():void
			{
				ball.x = STAGE_WIDTH / 2 - ball.width / 2;
				ball.y = STAGE_HEIGHT / 2 - ball.height / 2;
				
				//enemy.speed = Math.floor(Math.random() * (5) + 1);//Invinsible mode on
				
				ball.speed = ballSpeed;
				ball.dir = 0;
			}
			
			//Apply startHandler function Event Listener
			
			stage.addEventListener(MouseEvent.CLICK, startHandler);
			
			//Apply Timer to Timer functions
			
			var timer:Timer = new Timer(1, 0);
			
			timer.addEventListener(TimerEvent.TIMER, playerMovement);
			timer.addEventListener(TimerEvent.TIMER, enemyAI);
			timer.addEventListener(TimerEvent.TIMER, ballMovement);
			timer.addEventListener(TimerEvent.TIMER, checkHit);
			timer.addEventListener(TimerEvent.TIMER, scoreHandler);
		}
	}
}