Rotation3DBalls
/**
* Copyright fakestar0826 ( http://wonderfl.net/user/fakestar0826 )
* MIT License ( http://www.opensource.org/licenses/mit-license.php )
* Downloaded from: http://wonderfl.net/c/koqU
*/
// forked from fakestar0826's BounceInTheBox
package {
import flash.events.Event;
import flash.display.Sprite;
public class FlashTest extends Sprite {
private var balls:Array;
private var numBalls:int = 50;
private var fl:Number = 250;
private var vpX:Number = stage.stageWidth / 2;
private var vpY:Number = stage.stageHeight / 2;
private var top:Number = -100;
private var bottom:Number = 100;
private var left:Number = -100;
private var right:Number = 100;
private var front:Number = 100;
private var back:Number = -100;
public function FlashTest() {
// write as3 code here..
balls = [];
for(var i:int = 0;i < numBalls;i++)
{
var b:Ball3D = new Ball3D(15);
balls[i] = b;
b.xpos = Math.random() * 200 - 100;
b.ypos = Math.random() * 200 - 100;
b.zpos = Math.random() * 200 - 100;
addChild(b);
}
addEventListener(Event.ENTER_FRAME, onEnterFrame);
}
private function onEnterFrame(e:Event):void
{
var angleY:Number = (mouseX - vpX) * 0.001;
for(var i:int = 0;i < numBalls;i++)
{
var b:Ball3D = balls[i];
rotate(b, angleY);
}
}
private function rotate(b:Ball3D, angleY:Number):void
{
var cosY:Number = Math.cos(angleY);
var sinY:Number = Math.sin(angleY);
var x1:Number = b.xpos * cosY - b.zpos * sinY;
var z1:Number = b.zpos * cosY + b.xpos * sinY;
b.xpos = x1;
b.zpos = z1;
if(b.zpos > -fl)
{
var scale:Number = fl / (fl + b.zpos);
b.scaleX = b.scaleY = scale;
b.x = vpX + b.xpos * scale;
b.y = vpY + b.ypos * scale;
b.visible = true;
}
else
{
b.visible = false;
}
}
}
}
import flash.display.Sprite;
class Ball3D extends Sprite
{
public var r:Number;
public var xpos:Number = 0;
public var ypos:Number = 0;
public var zpos:Number = 0;
public var vx:Number = 0;
public var vy:Number = 0;
public var vz:Number = 0;
public var mass:Number = 1;
public function Ball3D(r:Number = 40, c:uint = 0xFF0000)
{
this.r = r;
graphics.beginFill(c);
graphics.drawCircle(0, 0, r);
graphics.endFill();
}
}