flash on 2009-4-29

//////////////////////////////////////
//
奥行きを考慮した円運動の練習        //
クリックでスタート・ストップ        //    
//
//////////////////////////////////////

by gen_suke 29 Apr 2009

Embed

////////////////////////////////////////
//                                    //
//    奥行きを考慮した円運動の練習        //
//    クリックでスタート・ストップ        //    
//                                    //
////////////////////////////////////////

package{
    import flash.display.Sprite;
    import flash.events.*;

    [SWF(width = 465, height = 465, backgroundColor = 0xffffff, frameRate = 30)]

    public class MoveCircle extends Sprite{
	private const FIGURE_SIZE:uint = 10;
	private const FIGURE_CNT:uint = 24;
	private var figureArray:Array = new Array();
	private var angles:Array = new Array();
        private var flag:Boolean = false;

	public function MoveCircle(){
		init();
		this.stage.addEventListener(MouseEvent.CLICK,startAndStop);
	}
        //円の作成		
	public function init():void{
            var circle:Sprite;
	    var keisan:Keisan;
	    for(var i:uint ; i<FIGURE_CNT ; i++){
	        circle = new Sprite();
       	        circle.graphics.beginFill(0xFFFFFF * Math.random());
		circle.graphics.drawCircle(0, 0, FIGURE_SIZE);
		circle.graphics.endFill();
                keisan = new Keisan(i*15);
                keisan.pointKeisan();
                circle.x = keisan.EyeX;
                circle.y = keisan.EyeY;
                circle.alpha = keisan.EyeAlpha;
                circle.scaleX = keisan.EyeZ;
                circle.scaleY = keisan.EyeZ;

		addChild(circle);
		figureArray.push(circle);
		angles.push(keisan.Angle);
            }
	}
	//終点座標に配置
        public function move(event:Event):void{
	    for(var j:uint=0;j<FIGURE_CNT;j++){
                var keisan:Keisan = new Keisan(angles[j]);
                keisan.pointKeisan();
                figureArray[j].x = keisan.EyeX;
                figureArray[j].y = keisan.EyeY;
                figureArray[j].alpha = keisan.EyeAlpha;
                figureArray[j].scaleX = keisan.EyeZ;
                figureArray[j].scaleY = keisan.EyeZ;	
                angles[j] = keisan.Angle;
	    }
	}
        public function startAndStop(event:MouseEvent):void{
	    if(flag){
		stage.removeEventListener(Event.ENTER_FRAME, move);
	    }else{
		stage.addEventListener(Event.ENTER_FRAME, move);
            }
	    flag=!(flag);
        }
    }
}

import flash.display.Sprite;
	
class Keisan extends Sprite{
	private var circleZ:Number;
	private var circleY:Number;
	private var eyeX:Number;
	private var eyeY:Number;
	private var eyeZ:Number;
	private var eyeAlpha:Number;
	private var radian:Number;
	private var angle:Number;
	//基点
        private var myStageWidth:Number = 150;
        private var myStageHeight:Number = 220;
	private const BALL_ANGLE:int = -1;

	public function Keisan(angle:Number){
		this.angle = angle;
	}
        public function get EyeX():Number{
         	return eyeX;
        }
        public function get EyeY():Number{
        	return eyeY;
        }
        public function get EyeZ():Number{
        	return eyeZ;
        }
        public function get EyeAlpha():Number{
        	return eyeAlpha;
        }
        public function get Angle():Number{
        	return angle;
        }

	public function pointKeisan():void{
            //座標の算出
	    radian= Math.PI * angle / 180;
	    angle += BALL_ANGLE;
	    //ｚ軸に半径300の円があるものとする
	    circleZ = 300 * Math.cos(radian);
	    circleY = 300 * Math.sin(radian);

	    //ｚ=150に表示
	    eyeZ = 150 / ( 400 + circleZ );
	    eyeY = myStageHeight + (circleY * eyeZ);
	    eyeX = myStageWidth + (80 * eyeZ);
	    eyeAlpha = 	eyeZ + 0.1;
	}
}