topical media & game development
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

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animation-ch15-Bounce3D.ax

animation-ch15-Bounce3D.ax [swf] [flash] flex 


  package {
   import flash.display.Sprite;
   import flash.display.StageAlign;
   import flash.display.StageScaleMode;
   import flash.events.Event;
   import flash.events.KeyboardEvent;
   import flash.ui.Keyboard;
  
   public class @ax-animation-ch15-Bounce3D extends Sprite
   {
    private var ball:animation_ch15_Ball;
    private var xpos:Number = 0;
    private var ypos:Number = 0;
    private var zpos:Number = 0;
    private var vx:Number = Math.random() * 10 - 5;
    private var vy:Number = Math.random() * 10 - 5;
    private var vz:Number = Math.random() * 10 - 5;
    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 @ax-animation-ch15-Bounce3D()
    {
     init();
    }

init(s) 


    private function init():void
    {
     stage.align = StageAlign.TOP_LEFT;
     stage.scaleMode = StageScaleMode.NO_SCALE;
     
     ball = new animation_ch15_Ball(15);
     addChild(ball);
     addEventListener(Event.ENTER_FRAME, onEnterFrame);
    }

frame(s) 


    private function onEnterFrame(event:Event):void
    {
     xpos += vx;
     ypos += vy;
     zpos += vz;
     
     var radius:Number =  ball.radius;
     if(xpos + radius > right)
     {
      xpos = right - radius;
      vx *= -1;
     }
     else if(xpos - radius < left)
     {
      xpos = left + radius;
      vx *= -1;
     }
     if(ypos + radius > bottom)
     {
      ypos = bottom - radius;
      vy *= -1;
     }
     else if(ypos - radius < top)
     {
      ypos = top + radius;
      vy *= -1;
     }
     if(zpos + radius > front)
     {
      zpos = front - radius;
      vz *= -1;
     }
     else if(zpos - radius < back)
     {
      zpos = back + radius;
      vz *= -1;
     }

case(s) 


     if(zpos > -fl)
     {
      var scale:Number = fl / (fl + zpos);
      ball.scaleX = ball.scaleY = scale;
      ball.x = vpX + xpos * scale;
      ball.y = vpY + ypos * scale;
      ball.visible = true;
     }
     else
     {
      ball.visible = false;
     }
    }
   }
  }
[] readme course(s) preface I 1 2 II 3 4 III 5 6 7 IV 8 9 10 V 11 12 afterthought(s) appendix reference(s) example(s) resource(s) _

(C) Æliens 04/09/2009

You may not copy or print any of this material without explicit permission of the author or the publisher. In case of other copyright issues, contact the author.