TileGame.as

package {
	import flash.display.*;
	
	import flash.events.*;
	import flash.utils.*;
	import flash.geom.*;
	import flash.text.*;
	import tools.*;
	import visual.*

	public class TileGame extends Sprite{
		
		private var _bmp:BitmapData;
		private var _xmlLoader:XmlLoader;
		private var _xmlData:XML;
		private var _screenParser:Parser;
		private var _screenArray:Array;
		private var _screen:Screen;
		private var _tileset:ImageLoader;
		private var _mouseDown:Boolean;
		private var _tileCoords:Point = new Point(0, 0);
		
		public static const FRAME_RATE:int = 10;
		private var _period:Number = 1000 / FRAME_RATE;
		private var _beforeTime:int = 0;
		private var _afterTime:int = 0;
		private var _timeDiff:int = 0;
		private var _sleepTime:int = 0;
		private var _overSleepTime:int = 0;
		private var _excess:int = 0;
		private var gameTimer:Timer;
		
		public function TileGame(){
			try{
			_xmlLoader = new XmlLoader("http://bradya.com/circles/screen1.xml");
			} catch(e:Error){
				trace("couldn't load XML file")
			}
			// wait till the XmlLoader will finish loading the data 
			_xmlLoader.addEventListener(Event.COMPLETE,onXmlReady);
			
			saveButton.addEventListener(MouseEvent.CLICK, saveClickHandler);
			loadButton.addEventListener(MouseEvent.CLICK, loadClickHandler);
		}
		
		
		private function onXmlReady(event:Event):void{
			//recieve the XML data from the event
			_xmlData = XmlLoader(event.target).xml as XML;
			//parse and build a screen from parsed data
			_screenParser = new Parser(_xmlData);
			_screenArray = _screenParser.rows;
			aboveLevelTextInput.text = _screenParser.levelAbove;
			leftLevelTextInput.text = _screenParser.levelLeft;
			belowLevelTextInput.text = _screenParser.levelBelow;
			rightLevelTextInput.text = _screenParser.levelRight;
			
			_tileset = new ImageLoader("http://bradya.com/circles/tileset.png");
			_tileset.addEventListener(Event.COMPLETE,onTilesetReady);
		}
		
		private function onTilesetReady(event:Event):void{
			_bmp = new BitmapData(1024,768);
			_bmp.draw(_tileset.loader);
			var bitmap = new Bitmap(_bmp);
			_screen = new Screen(_screenArray, _bmp);
			_screen.x = 0;
			_screen.y = 0;
			addChild(_screen);
			_tileset.x = 1048;
			addChild(_tileset);
			
			stage.addEventListener(MouseEvent.MOUSE_DOWN, doMouseDown, false, 0, true);
			stage.addEventListener(MouseEvent.MOUSE_UP, doMouseUp, false, 0, true);
			stage.addEventListener(KeyboardEvent.KEY_DOWN, key_down);
			
			gameTimer=new Timer(_period,1); //changed in part 3 from 50
			gameTimer.addEventListener(TimerEvent.TIMER, runGame);
			gameTimer.start();
		}
		function key_down(e:KeyboardEvent):void 
		{
			//if(e.keyCode == 32)
			//{
			//	_screenParser.saveXml(_screenArray, fileNameTextInput.text);
			//}
		}
		
		function saveClickHandler(event_object:MouseEvent) {
		
		 _screenParser.saveXml(_screenArray, fileNameTextInput.text, aboveLevelTextInput.text, leftLevelTextInput.text, belowLevelTextInput.text, rightLevelTextInput.text);

		}
		function loadClickHandler(event_object:MouseEvent) {
		try {
		 _xmlLoader = new XmlLoader("http://bradya.com/circles/" + fileNameTextInput.text + ".xml");
		 _xmlLoader.addEventListener(Event.COMPLETE,onXmlReady);
			} catch(e:Error){
				trace("couldn't load XML file")
			}

		}
		
		private function doMouseDown($evt:MouseEvent):void
		{
			//trace("MOUSE DOWN!");
			//trace($evt.stageX);
			//trace($evt.relatedObject);
			_mouseDown = true;
			
			// Clicking over tileset
			if (($evt.stageX > _tileset.x) && ($evt.stageX < (_tileset.x + _tileset.width)))
			{
				if (($evt.stageY > _tileset.y) && ($evt.stageY < (_tileset.y + _tileset.height)))
				{
					var x:uint = Math.floor($evt.localX/16);
					var y:uint = Math.floor($evt.localY/16);
					_tileCoords = new Point(x,y);
					trace("Tile Selected: " + _tileCoords);
				}
			}
			
			// Clicking over map
			if (($evt.stageX > 0) && ($evt.stageX < 1024))
			{
				if (($evt.stageY > 0) && ($evt.stageY < 768))
				{
					//(typePoint:Point,locationX:uint,locationY:uint,tileset:BitmapData
					var tile:Tile = new Tile(_tileCoords, 0, 0, _bmp);
					var locationX:uint = Math.floor($evt.stageX/16)*16;
					var locationY:uint = Math.floor($evt.stageY/16)*16;
					tile.x = locationX;
					tile.y = locationY;
					addChild(tile);
					var tilesRow:Array = _screenArray[locationY/16];
					var tilePoint:Point = tilesRow[locationX/16];
					tilePoint.x = _tileCoords.x;
					tilePoint.y = _tileCoords.y;
				}
			}
		}
 
		private function doMouseUp($evt:MouseEvent):void
		{
			//trace("MOUSE UP!");
			_mouseDown = false;
		}
		
		private function runGame(e:TimerEvent) {
			e.updateAfterEvent();
			
			gameTimer.reset();
			gameTimer.start();
		}
	}
}