var origX:Number = Stage.width/2;
 var origY:Number = Stage.height/2;
 var focalLength:Number = 300;
 var pointsArray:Array = new Array(
 makePoint(-40, -40, -40),
 makePoint(40, -40, -40),
 makePoint(40, -40, 40),
 makePoint(-40, -40, 40),
 makePoint(-40, 40, -40),
 makePoint(40, 40, -40),
 makePoint(40, 40, 40),
 makePoint(-40, 40, 40)
 );
 
 this.createEmptyMovieClip("box", 0);
 
 function makePoint(x:Number, y:Number, z:Number) {
 var pointObj = new Object();
 pointObj.x = x;
 pointObj.y = y;
 pointObj.z = z;
 return pointObj;
 }
 
 function calcScale(pointObj3D) {
 var pointObj2D = new Object();
 var scaleRatio:Number = focalLength/(focalLength+pointObj3D.z);
 pointObj2D.x = pointObj3D.x*scaleRatio;
 pointObj2D.y = pointObj3D.y*scaleRatio;
 return pointObj2D;
 }
 
 box.onEnterFrame = drawBox;
 function drawBox() {
 var screenPoints = new Array();
 for (var i:Number = 0; i < pointsArray.length; i++) {
 var thisPoint = pointsArray[i];
 var angleX:Number = (_ymouse-origY)*.001;
 var angleY:Number = (_xmouse-origX)*.001;
 var cosX:Number = Math.cos(angleX);
 var sinX:Number = Math.sin(angleX);
 var cosY:Number = Math.cos(angleY);
 var sinY:Number = Math.sin(angleY);
 var x1:Number = thisPoint.x*cosY-thisPoint.z*sinY;
 var z1:Number = thisPoint.z*cosY+thisPoint.x*sinY;
 var y2:Number = thisPoint.y*cosX-z1*sinX;
 var z2:Number = z1*cosX+thisPoint.y*sinX;
 thisPoint.x = x1;
 thisPoint.z = z2;
 thisPoint.y = y2;
 screenPoints.push(calcScale(thisPoint));
 screenPoints[i].x += origX;
 screenPoints[i].y += origY;
 }
 this.clear();
 this.lineStyle(1, 0x000000, 100);
 // back
 this.beginFill(0x000000, 50);
 this.moveTo(screenPoints[3].x, screenPoints[3].y);
 this.lineTo(screenPoints[7].x, screenPoints[7].y);
 this.lineTo(screenPoints[6].x, screenPoints[6].y);
 this.lineTo(screenPoints[2].x, screenPoints[2].y);
 this.lineTo(screenPoints[3].x, screenPoints[3].y);
 this.endFill();
 // top
 this.beginFill(0x000000, 50);
 this.moveTo(screenPoints[0].x, screenPoints[0].y);
 this.lineTo(screenPoints[1].x, screenPoints[1].y);
 this.lineTo(screenPoints[2].x, screenPoints[2].y);
 this.lineTo(screenPoints[3].x, screenPoints[3].y);
 this.lineTo(screenPoints[0].x, screenPoints[0].y);
 this.endFill();
 // bottom
 this.beginFill(0x000000, 50);
 this.moveTo(screenPoints[4].x, screenPoints[4].y);
 this.lineTo(screenPoints[5].x, screenPoints[5].y);
 this.lineTo(screenPoints[6].x, screenPoints[6].y);
 this.lineTo(screenPoints[7].x, screenPoints[7].y);
 this.lineTo(screenPoints[4].x, screenPoints[4].y);
 this.endFill();
 // front
 this.beginFill(0x000000, 50);
 this.moveTo(screenPoints[0].x, screenPoints[0].y);
 this.lineTo(screenPoints[4].x, screenPoints[4].y);
 this.lineTo(screenPoints[5].x, screenPoints[5].y);
 this.lineTo(screenPoints[1].x, screenPoints[1].y);
 this.lineTo(screenPoints[0].x, screenPoints[0].y);
 this.endFill();
 }