objectcontroller.as

Flex3实现的掼蛋游戏

package org.papervision3d.components.as3.utils
{ 
	/*
	Copyright (c) 2007 John Grden
	
	Permission is hereby granted, free of charge, to any person obtaining a
	copy of this software and associated documentation files (the
	"Software"), to deal in the Software without restriction, including
	without limitation the rights to use, copy, modify, merge, publish,
	distribute, sublicense, and/or sell copies of the Software, and to
	permit persons to whom the Software is furnished to do so, subject to
	the following conditions:
	
	The above copyright notice and this permission notice shall be included
	in all copies or substantial portions of the Software.
	
	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
	IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
	CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
	TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
	SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
	*/
	/**
	 * @author John Grden
	 */
	
	import com.blitzagency.xray.logger.XrayLog;
	//import com.rockonflash.papervision3d.modelviewer.events.ObjectControllerEvent;
	
	import flash.display.Stage;
	import flash.events.EventDispatcher;
	import flash.events.KeyboardEvent;
	import flash.events.MouseEvent;
	import flash.events.TimerEvent;
	import flash.ui.Keyboard;
	import flash.ui.Mouse;
	import flash.utils.Timer;
	import flash.utils.setInterval;
	
	import org.papervision3d.objects.DisplayObject3D;
	
	public class ObjectController extends EventDispatcher
	{
		private static var _instance:ObjectController = null;
		public static function getInstance():ObjectController
		{
			if(_instance == null) _instance = new ObjectController();
			return _instance;
		}
		
		public var isMouseDown			:Boolean;
		public var restrictInversion	:Boolean = false;
		
		protected var currentRotationObj:DisplayObject3D;
		
		protected var arrowLeft			:Boolean;
		protected var arrowUp			:Boolean;
		protected var arrowRight		:Boolean;
		protected var arrowDown			:Boolean;
		
		protected var lastX				:Number;
		protected var lastY				:Number;
		protected var difX				:Number;
		protected var difY				:Number;
		
		
		
		protected var si				:Number;
		//protected var timer				:Timer = new Timer(25,0);
		
		protected var movementInc		:Number = 1;
		
		private var log					:XrayLog = new XrayLog();
		private var stage				:Stage;
		
		public function ObjectController()
		{
			// constructor
			//Mouse.addListener(this);
			//Keyboard.addListener(this);
			//timer.addEventListener(TimerEvent.TIMER, handleTimerTick);
			//timer.start();
		}
		
		public function registerControlObject(obj:DisplayObject3D):void
		{
			currentRotationObj = obj;
		}
		
		public function registerStage(p_stage:Stage):void
		{
			stage = p_stage;
			stage.addEventListener(MouseEvent.MOUSE_UP, onMouseUp);
			stage.addEventListener(MouseEvent.MOUSE_DOWN, onMouseDown);
			stage.addEventListener(MouseEvent.MOUSE_MOVE, onMouseMove);
			stage.addEventListener(KeyboardEvent.KEY_UP, onKeyUp);
			stage.addEventListener(KeyboardEvent.KEY_DOWN, onKeyDown);
			
			updateLastRotation();
			updateDif();
		}
		
		protected function updateLastRotation():void
		{
			lastX = stage.mouseX;
			lastY = stage.mouseY;
		}
		
		protected function updateDif():void
		{
			difX = Number(stage.mouseX - lastX);
			difY = Number(stage.mouseY - lastY);
		}
		
		protected function onMouseDown(e:MouseEvent):void
		{
			updateLastRotation();
			isMouseDown = true;
		}
		
		protected function onMouseMove(e:MouseEvent):void
		{
			updateMovements();
		}
		
		/*
		protected function handleTimerTick(e:TimerEvent):void
		{
			updateMovements();
		}
		*/
		
		protected function onMouseUp(e:MouseEvent):void
		{
			isMouseDown = false;
			updateLastRotation();
		}
		
		protected function onKeyDown(e:KeyboardEvent):void 
		{
			/*
			37 // left
			38 // up
			39 // right
			40 // down
			*/
			try
			{
				movementInc += movementInc*.1;
				log.debug("keyDown", e.keyCode);
				switch(e.keyCode)
				{
					case 37:
						arrowLeft = true;
					break;
					
					case 38:
						arrowUp = true;
					break;
					
					case 39:
						arrowRight = true;
					break;
					
					case 40:
						arrowDown = true;
					break;
				}
				
			}catch(e:Error)
			{
				log.debug("keyDown error");
			}
		}
		
		protected function onKeyUp(e:KeyboardEvent):void 
		{
			movementInc = 1;
			try
			{
				switch(e.keyCode)
				{
					case 37:
						arrowLeft = false;
					break;
					
					case 38:
						arrowUp = false;
					break;
					
					case 39:
						arrowRight = false;
					break;
					
					case 40:
						arrowDown = false;
					break;
				}
			}catch(e:Error)
			{
				log.debug("keyDown error");
			}
		}
			
		protected function handleKeyStroke():void
		{
			var inc:Number = 5 + movementInc;
			
			if(arrowLeft) currentRotationObj.x -= inc;
			if(arrowUp) currentRotationObj.z += inc;
			if(arrowRight) currentRotationObj.x += inc;
			if(arrowDown) currentRotationObj.z -= inc;
		}
		
		protected function updateMovements():void
		{
			updateDif();
			handleKeyStroke();
			
			if(!isMouseDown) return;
			
			try
			{
				var posx:Number = difX/7;
				var posy:Number = difY/7;
				
				posx = posx > 360 ? posx % 360 : posx;
				posy = posy > 360 ? posy % 360 : posy;
				
				if(restrictInversion && currentRotationObj.rotationX - posy >= (-90) && currentRotationObj.rotationX - posy <= (90))
				{
					currentRotationObj.rotationX -= posy;
				}else if(!restrictInversion)
				{
					currentRotationObj.rotationX -= posy;
				}
				currentRotationObj.rotationY += posx;
				//dispatchEvent(new ObjectControllerEvent(ObjectControllerEvent.MOVEMENT, posx, posy));
				
				if(difX != 0) lastX = stage.mouseX;
				if(difY != 0) lastY = stage.mouseY;
			}catch(e:Error)
			{
				log.debug("handleMouseMove failed");
			}
		}
	}
}