forked from: forked from: forked from: Spriteを球状に配置するだけ

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

// forked from sebastienk's forked from: forked from: Spriteを球状に配置するだけ
// forked from sebastienk's forked from: Spriteを球状に配置するだけ
// forked from sake's Spriteを球状に配置するだけ
/*
   Spriteを球状に配置しただけです。
   Z-sortはclockmakerさんのものを利用させてもらってます（http://wonderfl.kayac.com/code/32ddf17fbf8581122c192435d1cccc870d10b375）。
*/

package
{
    import flash.display.Sprite;
    import flash.events.Event;
    import flash.filters.BlurFilter;
    import flash.geom.Matrix3D;

    [SWF(width="465", height="465", backgroundColor="0xFFFFFF", frameRate="40")]

    public class SpriteSphere extends Sprite
    {
        private var container:Sprite;
        private var planeN:Number;
        private const planeW:Number=50;
        private const planeH:Number=50;
        private const radius:Number=150;

        private const zradius:Number=100;
        private var i:int;


        public function SpriteSphere()
        {
            container=new Sprite();
            container.x=465 / 2;
            container.y=465 / 2;
            addChild(container);

            planeN=0;
            var H:int=(2 * radius * Math.PI) / 2 / planeH;
            var theta1:Number;
            var theta2:Number=90;


            for(i=0; i < H; i++)
            {
                theta1=0;
                var pn:int= 30; //Math.floor((2 * radius * Math.cos(theta2 * Math.PI / 180) * Math.PI) / planeW);
                var anglePer:Number = ((Math.PI*2) * 3) / pn;
                for(var j:int=0; j < pn; j++)
                {
                    var sp:Sprite=new Sprite;
                    sp.graphics.beginFill(Math.random() * 0xffffff, 0.7);
                    sp.graphics.drawEllipse(-planeW / 2, -planeH / 2, planeW, planeH);
                    sp.graphics.endFill();
                    //sp.rotationX=-theta2;
                    sp.rotationY=( -i * anglePer) * (180 / Math.PI) + 82.5;
                    sp.x=Math.cos(i * anglePer) * (radius * .5);;
                    sp.y=radius * Math.sin(theta2 * Math.PI / 180);
                    sp.z=Math.sin(i * anglePer) * (zradius* .5);
                    theta1+=360 / pn;
                    sp.name="sp" + planeN.toString();
                    container.addChild(sp);
                    planeN++;
                }
                container.rotationX = 90;
                theta2-=180 / H;
            }

            addEventListener(Event.ENTER_FRAME, onFrame);
        }

        private function onFrame(e:Event):void
        {
            container.rotationY++;

            var array:Array=[];
                        var sp:Sprite;
            for(i=0; i < planeN; i++)
            {
            sp=container.getChildByName("sp" + i.toString())as Sprite;
                var mat:Matrix3D=sp.transform.getRelativeMatrix3D(this);
                array.push({sp:sp, x:mat.position.x});
            }

            array.sortOn("z", Array.NUMERIC | Array.DESCENDING);

            for(i=0; i < planeN; i++)
            {
                sp=array[i].sp as Sprite;
                container.setChildIndex(sp, i);

                var b:Number=(array[i].z as Number) / 14;
                sp.filters=(b > 4) ? [new BlurFilter(b, b, 3)] : [];
            }
        }
    }
}