code on 2008-12-26

by sadamitsu 17 Jun 2009

Embed

package  {
	import flash.display.Stage;
	import flash.display.StageAlign;
	import flash.display.StageQuality;
	import flash.display.StageScaleMode;
	import flash.display.Sprite;
	import flash.display.MovieClip;
	import flash.display.*;
	import flash.events.Event;
	import flash.events.ProgressEvent;
	import flash.events.MouseEvent;
	import flash.events.EventDispatcher;
	import flash.net.*;
	import flash.utils.*;
	import fl.transitions.*;
	import fl.transitions.easing.*;
	
	import flash.media.Camera;
	import flash.media.Video;
	import flash.events.ActivityEvent;
	import flash.geom.*;
	
	import flash.utils.ByteArray;

	[SWF(width=600, height=600, backgroundColor=0x000000, frameRate=60)]

	public class Main extends Sprite {
		public static var _stage:Stage;
		private const CAMERA_W:int = stage.stageWidth;  
		private const CAMERA_H:int = stage.stageHeight;   

		private var camera:Camera;
		private var video:Video;
		private var button:Sprite;
		private var bmd:BitmapData;
		
		private var pic:BitmapData;
		private var now:BitmapData;
		private var before:BitmapData;
		private var rect:Rectangle;
		private var pt:Point;
		
		private var urlRequest:URLRequest;
		private var urlLoader:URLLoader;
		
		private var cnt:int=0
		
		public function Main() {
			
			Init()
		}
		
		private function Init():void {
			
			camera = Camera.getCamera();
			
			if (camera != null) {
				setupCamera();
			}

			bmd = new BitmapData(CAMERA_W, CAMERA_H ,false,0xffffff);
			var bmp:DisplayObject =  addChild(new Bitmap(bmd));
			//bmp.x = CAMERA_W + 10;
			
			addEventListener(Event.ENTER_FRAME, loop);
			
			//
			pic = new BitmapData(CAMERA_W, CAMERA_H);
			now = new BitmapData(CAMERA_W, CAMERA_H);
			before = new BitmapData(CAMERA_W, CAMERA_H);
			rect = new Rectangle(0, 0, CAMERA_W, CAMERA_H);
			pt = new Point(0, 0);
			
		}
		
		private function setupCamera():void {
			video = new Video(CAMERA_W, CAMERA_H);
			video.attachCamera(camera);
			addChild(video);
		}
		//差分抽出
		private function loop(e:Event):void {
			cnt++
			pic.draw(video);
			now.draw(video);
			now.draw(before, new Matrix(), new ColorTransform(), BlendMode.DIFFERENCE);
			now.threshold(now, rect, pt, ">", 0xff111111, 0xffffffff);		
			before.draw(video);		
			bmd.draw(now);
			
			//60フレームごとに
			if(cnt==60){
			var hantei:int=getBitBlackArray(before)
			cnt = 0		
				if(hantei>400){
				//dispatchEvent(new MouseEvent(MouseEvent.CLICK));
				}
			}
		}
		
		//ビットマップデータを解析
		function getBitBlackArray(bmd:BitmapData):int {
			var bmd_cnt:int=0
			for (var i:Number=0; i<bmd.height; i+=5) {
				for (var j:Number=0; j<bmd.width; j+=5) {
					var pixelColor:String = bmd.getPixel(j, i).toString(16);
					if (pixelColor == "0") {
						bmd_cnt++	
					}
				}
			}
			return bmd_cnt;
		}	
	}
	}