package  
{
	import flash.display.MovieClip;
	import flash.events.TimerEvent;
	import flash.text.TextField;
	import flash.utils.Timer;
	
	/**
	 * ...
	 * @author Jaaq
	 */
	public class Trace extends MovieClip
	{
		private var doors:Array = [0, 1, 2];
		private var numberOfGames:int = 100000; // changes the number of simulated games
		private var results = 0;
		
		public function Trace() 
		{
			for (var i:int = 0; i < numberOfGames; i++) 
			{
				// startGame(true)  switches your choice
				// startGame(false) doesnt switch your choice
				//if (startShortGame(false)) results ++;
				if (startLongGame(false)) results ++;
			}
			trace(results / numberOfGames * 100 + " % ");
		}
		
		private function startShortGame(doSwitch:Boolean):Boolean
		{
				var doYouGetACar:Boolean;
				var winningDoor = randomRange(0, 2);
				var doorChosen:int = randomRange(0, 2);
				
				if(winningDoor != doorChosen){ // this happens 66% of the time
						if(doSwitch) doYouGetACar = true;  // switching Wins 
						if(!doSwitch) doYouGetACar = false // switching Loses
					}
			
				if(winningDoor == doorChosen){ // this happens 33% of the time
						if(doSwitch) doYouGetACar = false;  // switching Loses 
						if(!doSwitch) doYouGetACar = true  // switching Winss
					} 
			
				return doYouGetACar;
		}
	
		private function startLongGame(doSwitch:Boolean):Boolean
		{
			doors = [0, 1, 2];
			var winningDoor = randomRange(0, 2);
			var doorChosen:int = randomRange(0, 2);
			if(doorChosen == winningDoor && doSwitch) return false;
			
			var doorGiven:int = giveDoor(doorChosen, winningDoor);
			
			if (doSwitch) {
				doors.splice(doors.indexOf(doorChosen), 1);
				doors.splice(doors.indexOf(doorGiven), 1);
				doorChosen = doors[0];
			}
			
			if (winningDoor == doorChosen) return true;
			return false;
		}
		
		private function giveDoor(chosen:int,winner:int):int
		{
			var temp:Array = [0, 1, 2]; 
			temp.splice(temp.indexOf(chosen), 1);
			temp.splice(temp.indexOf(winner), 1);
			return temp[0]; 
		}
				
		function randomRange(minNum:Number, maxNum:Number):Number  
		{  
			return (Math.floor(Math.random() * (maxNum - minNum + 1)) + minNum);  
		}  
				
	}

}