//立體場景縱深

const MAXIMUM_Z:Number = 500;

//方塊數(shù)量

const NUMBER_OF_BOXES:Number = 15;

//創(chuàng)建一個包含方塊的數(shù)組；

var boxes:Array = new Array();

//視圖焦距設(shè)置

var focalLength:Number = 300;

//Vanishingpoint是方塊消失點；

var vanishingPointX:Number = stage.stageWidth / 2;

var vanishingPointY:Number = 20;

//3D方塊底邊位置

var floor:Number = 80;

//第一個方塊深度

var startingDepth:Number = MAXIMUM_Z;

//盒子之間的z距離值

var zDistance:Number = 50;

//這個循環(huán)為由遠(yuǎn)到近的方塊定位

for (var i=0; i < NUMBER_OF_BOXES; i  ) {

	var box:MyBox = new MyBox();

	box.xpos3D = 0;

	box.ypos3D = floor;

	box.zpos3D = startingDepth;

	//更新方塊的深度；

	startingDepth -= zDistance;

	//使用角度公式計算縮放比例；

	var scaleRatio = focalLength/(focalLength   box.zpos3D);

	//縮放坐標(biāo)比例；

	box.scaleX=box.scaleY=scaleRatio;

	//將方塊定位到場景中（由3d到2d轉(zhuǎn)換）

	box.x=vanishingPointX box.xpos3D*scaleRatio;

	box.y=vanishingPointY box.ypos3D*scaleRatio;

	//將方塊放入數(shù)組

	boxes.push(box);

	//將方塊加入場景

	addChild(box);

}
在菜單中選擇調(diào)試>測試場景效果如下:
7.在以上代碼后插入如下代碼，用于產(chǎn)生動畫；
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//用ENTER_FRAME事件加入動畫函數(shù)

addEventListener(Event.ENTER_FRAME, enterFrameHandler);

 

//每一幀都調(diào)用這個函數(shù)

function enterFrameHandler(e:Event):void {

 

	for (var i=0; i < NUMBER_OF_BOXES; i  ) {

 

		//將box變?yōu)榫植孔兞?/SPAN>

		var box:MyBox = (MyBox)(boxes[i]);

		//減少深度

		box.zpos3D-=5;

		if (box.zpos3D<=- focalLength) {

			//最后方塊始終在數(shù)組第一位

			box.zpos3D=boxes[0].zpos3D zDistance;

		}

		var scaleRatio = focalLength/(focalLength   box.zpos3D);

		box.scaleX=box.scaleY=scaleRatio;

		//設(shè)置透明度變量

		box.alpha=scaleRatio-0.5;

		box.x=vanishingPointX box.xpos3D*scaleRatio;

		box.y=vanishingPointY box.ypos3D*scaleRatio;

	}

	//根據(jù)深度排列數(shù)組

	sortZ();

}

 

//這個函數(shù)使方塊正確排列

function sortZ():void {

	boxes.sortOn("zpos3D", Array.NUMERIC | Array.DESCENDING);

	for (var i:uint = 0; i < NUMBER_OF_BOXES; i  ) {

		setChildIndex(boxes[i], i);

	}

}