flash on 2010-2-5

by upstanding 05 Feb 2010

Tags

Point.polar()
Embed

/**
 * Copyright upstanding ( http://wonderfl.net/user/upstanding )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/1GFe
 */

package {
	import flash.geom.Point;
	import flash.events.*;
    import flash.display.*;
    
    [SWF(width=465,height=465,backgroundColor="#FFFFFF", frameRate=60)]
    
    public class OffsetCircle extends Sprite {
    		private var obj:Array = new Array();
    		private var spNum:uint = 10; //Spriteの数
    		private 	var center:Point = new Point(stage.stageWidth/2,stage.stageHeight/2);
    		private 	var len:Number = 80;
    		private 	var rad:Number = 2*Math.PI/spNum;　//３６０度をspNum個に等分割した角度ラジアン				
    		
        public function OffsetCircle() {			
            //ball i個の配列を用意
            for(var i:uint=1; i <= spNum; i++) {
            	obj[i] = new ball();
            	stage.addChild(obj[i]);
            	
            	 //配置する位置
            	var pt:Point = Point.polar(len,rad*(i-1));
            	//ベクトルの原点をcenterの位置に合わせる
            	pt.offset(center.x,center.y);
            	//ball[i]の位置
            	obj[i].x = pt.x;
            	obj[i].y = pt.y;          
            }
        }
    }
}


//-------------------------------------------------------------------------/
//
//

import flash.display.*;
import flash.filters.*;

class ball extends Shape { //ball（基本）インスタンスの作成
	/**
	*/
   	private var r:uint = 15; //ボールの半径
   	
    function ball(){
        graphics.beginFill(Math.round(Math.random() * 255 * 255 * 255), 1);
        graphics.drawCircle(0, 0, r);
        graphics.endFill();
        
        this.filters = [new DropShadowFilter(4, 45, 0, 0.5)];
    }
}