<?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 = 200;

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;
};

function makePointsArray(i){

pointsArray = [
	make3DPoint(-i*2,-i,-i),
	make3DPoint(i*2,-i,-i),
	make3DPoint(i*2,-i,i),
	make3DPoint(-i*2,-i,i),
	make3DPoint(-i*2,i,-i),
	make3DPoint(i*2,i,-i),
	make3DPoint(i*2,i,i),
	make3DPoint(-i*2,i,i)
];
return pointsArray;
};

function makePointsArray_2(i){

pointsArray = [
	make3DPoint(-i,-i,-i),
	make3DPoint(i,-i,-i),
	make3DPoint(i,-i,i),
	make3DPoint(-i,-i,i),
	make3DPoint(-i,i,-i),
	make3DPoint(i,i,-i),
	make3DPoint(i,i,i),
	make3DPoint(-i,i,i)
];
return pointsArray;
};

_root.cube_count = 100;
_root.cube_start = 10;
_root.cube_inc = 25;

count = 0;
for(i=_root.cube_start; i<(_root.cube_count+_root.cube_start); i+=_root.cube_inc){
			_root['pointsArray_'+i] = makePointsArray_2(i);
		i++;
			_root['pointsArray_'+i] = makePointsArray(i);
}

cubeAxisRotations = make3DPoint(0,0,0);
rotateCube = function(){
	cubeAxisRotations.y -= this._xmouse/2000;
	cubeAxisRotations.x += this._ymouse/2000;
	
	for(i=_root.cube_start; i<(_root.cube_count - _root.cube_start); i+=_root.cube_inc){
		this['screenPoints_'+i] = Transform3DPointsTo2DPoints(_root['pointsArray_'+i], cubeAxisRotations);
		i++;
		this['screenPoints_'+i] = Transform3DPointsTo2DPoints(_root['pointsArray_'+i], cubeAxisRotations);
	}	
	
	this.clear();
	this.lineStyle(2, 0x000000, 75);
	for(i=_root.cube_start; i<(_root.cube_count - _root.cube_start); i+=_root.cube_inc){
			draw3d_2(this['screenPoints_'+i], this);
			i++;
			draw3d_2(this['screenPoints_'+i], this);
	}
};
	function draw3d_2(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_9.swf", 9);

echo "<br><a href='3d_9.swf' target='_blank'>ahhhhhhhhh</a>";
?>