package ;

import flash.display.Sprite;
import flash.display.TriangleCulling;
import flash.events.Event;
import flash.geom.Matrix3D;
import flash.geom.PerspectiveProjection;
import flash.geom.Point;
import flash.geom.Utils3D;
import flash.geom.Vector3D;
import flash.Lib;
import flash.ui.Keyboard;

/**
 * @licence Creative Common BY NC SA - http://creativecommons.org/licenses/by-nc-sa/2.0/
 * @author Blue112
 */

class Main extends Sprite
{
	private var m:Matrix3D;
	private var sprite:Sprite;
	private var c:Diamond;
	private var pers:PerspectiveProjection;
	private var km:KeyManager;
	private var rotX:Float;
	private var rotY:Float;
	private var vitX:Float;
	private var vitY:Float;
	
	function new()
	{
		super();
		
		c = new Diamond();
		
		pers = new PerspectiveProjection();
		pers.projectionCenter = new Point(0, 0);
		pers.fieldOfView = 45;
		
		sprite = new Sprite();
		sprite.x = Lib.current.stage.stageWidth / 2;
		sprite.y = Lib.current.stage.stageHeight/ 2;
		addChild(sprite);
		
		rotX = 30;
		rotY = 30;
		
		vitX = 3;
		vitY = 0;
		
		m = pers.toMatrix3D();
		
		addEventListener(Event.ENTER_FRAME, draw);
		km = new KeyManager(Lib.current.stage);
	}
	
	private function draw(e:Event):Void
	{		
		rotX += vitX;
		rotY += vitY;
		
		var m2:Matrix3D = new Matrix3D();
		m2.identity();
		m2.prependTranslation(0, 0, 5);
		m2.prependRotation(rotX, new Vector3D(0, 1, 0));
		m2.prependRotation(rotY, new Vector3D(1, 0, 0));
		m2.transformVectors(c.vertices3D, c.vertices3D2);
		
		Utils3D.projectVectors(m, c.vertices3D2, c.vertices2D, c.uvtData);
		
		sprite.graphics.clear();
		sprite.graphics.beginFill(0xbbbbbb, 1);
		sprite.graphics.lineStyle(2, 0);
		sprite.graphics.drawTriangles(c.vertices2D, c.indices, null, TriangleCulling.POSITIVE);
	}
	
	static function main() 
	{
		Lib.current.addChild(new Main());
	}
	
}