package kr.tibyte
{
import flash.display.Bitmap;
import flash.display.BitmapData;
import flash.display.Shape;
import flash.display.Sprite;
import flash.events.Event;
import flash.events.MouseEvent;
import flash.geom.Point;
import flash.geom.Vector3D;
public class Main extends Sprite
{
[Embed(source="../../sample1.png")]
private var SampleImage1:Class;
[Embed(source="../../sample2.png")]
private var SampleImage2:Class;
private var _bitmaps:Vector.<Bitmap> = new Vector.<Bitmap>(IMG_NUM);
private var _imgArr:Vector.<Sprite> = new Vector.<Sprite>(IMG_NUM);
private var _imgWidth:int = 120;
private var _imgHeight:int = 80;
private var _r:Number;
private var _yaw:Number = 0;
private var _container:Sprite = new Sprite();
private const IMG_NUM:int = 6;
private const THETA:Number = 0.003*3/180*Math.PI;
private const MARGIN:int = 20;
public function Main():void
{
for (var i:int = 0; i<IMG_NUM; i++)
{
if (Math.random()>0.6)
_bitmaps[i] = new SampleImage1();
else
_bitmaps[i] = new SampleImage2();
_bitmaps[i].x = -_bitmaps[i].width/2-MARGIN;
_bitmaps[i].y = -_bitmaps[i].height/2;
_imgArr[i] = new Sprite();
_imgArr[i].addChild(_bitmaps[i]);
_imgArr[i].width = _imgWidth;
_imgArr[i].height = _imgHeight;
_container.addChild(_imgArr[i]);
}
_r = (_imgWidth+2*MARGIN)/(2*Math.tan(Math.PI/IMG_NUM));
_container.x = 200;
_container.y = 150;
this.transform.perspectiveProjection.projectionCenter = new Point(_container.x, _container.y);
addChild(_container);
stage.addEventListener(Event.ENTER_FRAME, enterFrameHandler);
stage.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler);
}
private function mouseMoveHandler($evt:MouseEvent):void
{
var old:Point = this.transform.perspectiveProjection.projectionCenter;
old.y = stage.mouseY;
root.transform.perspectiveProjection.projectionCenter = old;
}
private function enterFrameHandler($evt:Event):void
{
_yaw += THETA*(stage.mouseX-stage.stageWidth/2);
display();
}
private function display():void
{
var angle:Number;
for (var i:int = 0; i<IMG_NUM; i++)
{
angle = _yaw+i*2*Math.PI/IMG_NUM;
_imgArr[i].x = _r*Math.cos(angle);
_imgArr[i].z = _r*Math.sin(angle);
_imgArr[i].rotationY = (180/Math.PI)*-1*(Math.PI/2+angle);
}
var seq:Vector.<int> = genSequence(IMG_NUM);
seq.sort(compare);
_container.removeChildren();
for (i = 0; i<IMG_NUM; i++)
{
_container.addChild(_imgArr[seq[i]]);
}
function compare($a:int, $b:int):Number
{
if (_imgArr[$a].z>_imgArr[$b].z)
return -1;
else if (_imgArr[$a].z==_imgArr[$b].z)
return 0;
else
return 1;
}
}
private function genSequence($n:int):Vector.<int>
{
var arr:Vector.<int> = new Vector.<int>($n);
for (var i:int = 0; i<$n; i++) {
arr[i] = i;
}
return arr.concat();
}
}
}
