<?php 

// original code take from
// http://www.kirupa.com/developer/actionscript/rotation_center.htm
// see that tutorial for explanations of the actionscript

include("../functions/drawingfuncs.php");
ming_setScale(25.00000000);
ming_useswfversion(6);
$movie= new SWFMovie();
$movie->setDimension(400, 400);
$movie->setBackground(255, 255, 255);
$w = 400;
$h = 400;
include("../functions/mytrace.php");
$s = drawSquare(0, 0, 10, 10, .1, 0, 0, 0);

$a = new SWFSprite();
$a -> add($s);
$a -> nextframe();

$movie->addExport($a, 'redballoon');

$movie->add(new SWFAction(
"
_root.createEmptyMovieClip('theScene', 1);
theScene._x = 150;
theScene._y = 150;

focalLength = 300;

// creates a 3d point
make3DPoint = function(x,y,z){
	var point = new Object();
	point.x = x;
	point.y = y;
	point.z = z;
	return point;
};
make2DPoint = function(x, y){
	var point = new Object();
	point.x = x;
	point.y = y;
	return point;
};

Transform3DPointsTo2DPoints = function(points, axisRotations){
	var TransformedPointsArray = [];
	var sx = Math.sin(axisRotations.x);
	var cx = Math.cos(axisRotations.x);
	var sy = Math.sin(axisRotations.y);
	var cy = Math.cos(axisRotations.y);
	var sz = Math.sin(axisRotations.z);
	var cz = Math.cos(axisRotations.z);
	var x,y,z, xy,xz, yx,yz, zx,zy, scaleFactor;

	var i = points.length;
	while (i--){
		x = points[i].x;
		y = points[i].y;
		z = points[i].z;

		// rotation around x
		xy = cx*y - sx*z;
		xz = sx*y + cx*z;
		// rotation around y
		yz = cy*xz - sy*x;
		yx = sy*xz + cy*x;
		// rotation around z
		zx = cz*yx - sz*xy;
		zy = sz*yx + cz*xy;
		
		scaleFactor = focalLength/(focalLength + yz);
		x = zx*scaleFactor;
		y = zy*scaleFactor;
		z = yz;

		TransformedPointsArray[i] = make2DPoint(x, y, -z, scaleFactor);
	}
	return TransformedPointsArray;
};

pointsArray_5 = [
	make3DPoint(-5,-5,-5),
	make3DPoint(5,-5,-5),
	make3DPoint(5,-5,5),
	make3DPoint(-5,-5,5),
	make3DPoint(-5,5,-5),
	make3DPoint(5,5,-5),
	make3DPoint(5,5,5),
	make3DPoint(-5,5,5)
];
pointsArray_25 = [
	make3DPoint(-25,-25,-25),
	make3DPoint(25,-25,-25),
	make3DPoint(25,-25,25),
	make3DPoint(-25,-25,25),
	make3DPoint(-25,25,-25),
	make3DPoint(25,25,-25),
	make3DPoint(25,25,25),
	make3DPoint(-25,25,25)
];
pointsArray_50 = [
	make3DPoint(-50,-50,-50),
	make3DPoint(50,-50,-50),
	make3DPoint(50,-50,50),
	make3DPoint(-50,-50,50),
	make3DPoint(-50,50,-50),
	make3DPoint(50,50,-50),
	make3DPoint(50,50,50),
	make3DPoint(-50,50,50)
];

pointsArray_75 = [
	make3DPoint(-75,-75,-75),
	make3DPoint(75,-75,-75),
	make3DPoint(75,-75,75),
	make3DPoint(-75,-75,75),
	make3DPoint(-75,75,-75),
	make3DPoint(75,75,-75),
	make3DPoint(75,75,75),
	make3DPoint(-75,75,75)
];

cubeAxisRotations = make3DPoint(0,0,0);
rotateCube = function(){
	cubeAxisRotations.y -= this._xmouse/3000;
	cubeAxisRotations.x += this._ymouse/3000;
	
	var screenPoints_5 = Transform3DPointsTo2DPoints(pointsArray_5, cubeAxisRotations);
	var screenPoints_25 = Transform3DPointsTo2DPoints(pointsArray_25, cubeAxisRotations);
	var screenPoints_50 = Transform3DPointsTo2DPoints(pointsArray_50, cubeAxisRotations);
	var screenPoints_75 = Transform3DPointsTo2DPoints(pointsArray_75, cubeAxisRotations);
	
	this.clear();
	this.lineStyle(2,0x0000ff,75);
	draw3d(screenPoints_5, this);
	draw3d(screenPoints_25, this);
	draw3d(screenPoints_50, this);
	draw3d(screenPoints_75, this);
};
	function draw3d(screenPoints, this){
	// top
	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);
	// bottom
	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);
	// connecting bottom and top
	this.moveTo(screenPoints[0].x, screenPoints[0].y);
	this.lineTo(screenPoints[4].x, screenPoints[4].y);
	this.moveTo(screenPoints[1].x, screenPoints[1].y);
	this.lineTo(screenPoints[5].x, screenPoints[5].y);
	this.moveTo(screenPoints[2].x, screenPoints[2].y);
	this.lineTo(screenPoints[6].x, screenPoints[6].y);
	this.moveTo(screenPoints[3].x, screenPoints[3].y);
	this.lineTo(screenPoints[7].x, screenPoints[7].y);
	};
theScene.onEnterFrame = rotateCube;
"));
$movie->save("3d_3.swf", 9);

echo "<br><a href='3d_3.swf' target='_blank'>ahhhhhhhhh</a>";
?>