class scena implements axon
{
	private var obiecte:Array;
	private var poly:Array;
	private var i:Number;
	private var clip:MovieClip;
	private static var m = 1;
	public var f:Number;
	public var boundMax, boundMin:Number;
	private var quat:quaternion;
	//
	public var x,y,z,o:point;
	public var cameraPos,lookAt:point;
	public var u,v,w:point;
	public var angle;
	public var cam:camera;
	//
	public function scena()
	{
		obiecte = new Array();
		f = 200;
		boundMax = 640;
		boundMin = 160;
		quat = new quaternion();
		o = new point(0,0,0);
		x = new point(1,0,0);
		y = new point(0,1,0);
		z = new point(0,0,1);
		cameraPos = new point(500,500,500);
		lookAt = new point(0,0,0);
		w = new point(0,0,0);
		u = new point(0,0,0);
		v = new point(0,0,0);
		angle = 50;
		cam = new camera();
		viewBase();
		
	}
	public function set mc(a:MovieClip)
	{
		clip = a;
	}
	
	public function get _quat():quaternion 
	{
		return quat;
	}
		
	public function adaugaObiect(a:axon)
	{
		obiecte.push(a);
	}
	
	public function addPoly(a:poligon):Void
	{
		poly.push(a);
	}
	
	public function camRotate(q:quaternion):Void
	{
		cam.rotate(q);
	}
	///////////////////////////////////////////////////////////////////
	public function viewBase() 
	{
		//calculeaza coordonatele sistemului de axe al camerei in functie de lookAt si camerPos, evident dependenet de coordonatele globale.
		w.x = cameraPos.x - lookAt.x;
		w.y = cameraPos.y - lookAt.y;
		w.z = cameraPos.z - lookAt.z;
		var ding = Math.sqrt(w.x*w.x + w.y * w.y + w.z * w.z);
		w.x /= ding; w.y /= ding; w.z/=ding;
		u.x = y.y * w.z - y.z * w.y;
		u.y = y.z * w.x - y.x * w.z;
		u.z = y.x * w.y - y.y * w.x;
		ding = Math.sqrt(u.x*u.x + u.y * u.y + u.z * u.z);
		u.x /= ding; u.y /= ding; u.z/=ding;
		v.x = w.y * u.z - w.z * u.y; 
		v.y = w.z * u.x - w.x * u.z;
		v.z = w.x * u.y - w.y * u.x;
		cam.u = u;
		cam.v = v;
		cam.w = w;	
		cam.c = cameraPos;
		
	}
	///////////////////////////////////////////////////////////////////
	//creeaza mc-uri vide pentru poligoane.
	public function generateMC():MovieClip
	{
		var ret = _root.createEmptyMovieClip("mc" + m, m + 1);
		m++;
		return ret;
	}
	public function calcPoint():point
	{
		var t = new point();
		//( A.x , A.y , A.z ) X ( B.x , B.y , B.z ) = ( A.y * B.z - A.z * B.y , A.z * B.x - A.x * B.z , A.x * B.y - A.y * B.x)
		//nu uita sa normalizezi altfel iese urat.
		//cross product intre view vector[w] = cameraPos - lookAt si (0,1,0);
		t.x = -w.z;
		t.y = 0;
		t.z = w.x;		
		return t;
	}
	private function mInBounds():Boolean
	{
		if((_root._xmouse < boundMin)||(_root._xmouse > boundMax)||(_root.ymouse < boundMin) || (_root._ymouse > boundMax))
			return false;
		return true;
	}
	public function deseneaza():Void
	{
		if(_root.mouseFeed) {
		if(mInBounds()){
		cameraPos.x = 2*(_root._xmouse - 400);
		cameraPos.y = 2*(_root._ymouse - 400);
		}}
		_root.cpos.text = "Camera Position: x: " + Math.round(cameraPos.x) + ", y: " + Math.round(cameraPos.y) + ", z: " + Math.round(cameraPos.z);
		_root.lat.text = "Look At: x: " + lookAt.x + ", y: " + lookAt.y + ", z: " + lookAt.z;
		viewBase();
		for (i = 0; i < obiecte.length; i++) {
			obiecte[i].deseneaza();
		}
	}
}