//////////////////////////////////////////
      //SISTEMA SOLAR POR MANUEL PATIÑO LOPEZ//
      ///////////////////////               //
                          //REVISION 2/4/16//
                         ///////////////////



    //INICIO DEL PROGRAMA

    var createScene = function() {
	var scene = new BABYLON.Scene(engine);



	//CAMARAS

	var camara = new BABYLON.FreeCamera("FreeCamera", new BABYLON.Vector3(110, 111, -115), scene);
	camara.speed=50
	camara.attachControl(canvas, false);



     //LUCES

    var luzsol = new BABYLON.PointLight("Omni1", new BABYLON.Vector3(0, -10, 0), scene);



    //VARIABLES DE PLANETAS TAMAÑOS, ETC

	var sol = BABYLON.Mesh.CreateSphere('sphere1', 16, 200, scene); //POR FINES DIDACTICOS TOMAMOS EL RADIO DEL SOL A 200
	var mercurio = BABYLON.Mesh.CreateSphere('sphere1', 16, 2.4, scene);//POR FINES DIDACTICOS LA ESCALA SERA RADIO/1000
    var venus = BABYLON.Mesh.CreateSphere('sphere1', 6, 6, scene);
	var tierra = BABYLON.Mesh.CreateSphere('sphere1', 6, 6.37, scene);
	var marte = BABYLON.Mesh.CreateSphere('sphere1', 6, 3.39, scene);
	var jupiter = BABYLON.Mesh.CreateSphere('sphere1', 6, 71.4, scene);
	var saturno = BABYLON.Mesh.CreateSphere('sphere1', 6, 60.26, scene);
	var urano= BABYLON.Mesh.CreateSphere('sphere1', 6, 25.5, scene);
	var neptuno = BABYLON.Mesh.CreateSphere('sphere1', 6, 24.7, scene);



	// TEXTURAS?¿ Y MATERIALES
    var material = new BABYLON.StandardMaterial("kosh", scene);
    sol.material = new BABYLON.StandardMaterial("luces", scene);
    sol.material.diffuseColor = new BABYLON.Color3(01, 01, 01);
    sol.material.specularColor = new BABYLON.Color3(01, 01, 01);
    sol.material.emissiveColor = new BABYLON.Color3(01, 1, 01);




	//Posicion inicial del sol

	//sol.position.x = 0
	//sol.position.y = 6.5



    // Animacion MERCURIO

	var alpha = 0;
	scene.registerBeforeRender(function () {
	mercurio.rotation.x += 0.01;
	mercurio.rotation.z += 0.02;
	mercurio.position = new BABYLON.Vector3(Math.cos(alpha) *257, 10, Math.sin(alpha) * 257);
	alpha += 0.001087 //ALREDEDOR DE 87 DIAS TERRESTRES
	});



	//Animacion VENUS

	var beta = 0;
	scene.registerBeforeRender(function () {
	venus.rotation.x += 0.01;
	venus.rotation.z += 0.02;
	venus.position = new BABYLON.Vector3(Math.cos(beta) *308, 10, Math.sin(beta) * 308);
	beta += 0.0010254 ;//ALREDEDOR DE 254 DIAS TERRESTRES
	});



	//Animacion TIERRA

	 var gamma = 0;
	 scene.registerBeforeRender(function () {
     tierra.rotation.x += 0.01;
	 tierra.rotation.z += 0.02;
	 tierra.position = new BABYLON.Vector3(Math.cos(gamma) *349, 10, Math.sin(gamma) * 349);
	 gamma += 0.00100365//ALREDEDOR DE 365 DIAS
	 });



	//Animacion MARTE

	var delta = 0;
	marte.registerBeforeRender(function () {
	marte.rotation.x += 0.01;
	marte.rotation.z += 0.02;
	marte.position = new BABYLON.Vector3(Math.cos(delta) *427, 10, Math.sin(delta) * 427);
	delta += 0.00100686;//ALREDEDOR DE 686 DIAS
	});



	//Animacion JUPITER

	var epsilon = 0;
	scene.registerBeforeRender(function () {
    jupiter.rotation.x += 0.01;
	jupiter.rotation.z += 0.02;
	jupiter.position = new BABYLON.Vector3(Math.cos(epsilon) *998, 10, Math.sin(epsilon) * 998);
	epsilon += 0.00001004015;// ALREDEDOR DE 4015 DIAS
	});



	//Animacion SATURNO

	 var dseta = 0;
	 scene.registerBeforeRender(function () {
	 saturno.rotation.x += 0.01;
	 saturno.rotation.z += 0.02;
	 saturno.position = new BABYLON.Vector3(Math.cos(dseta) *1629, 10, Math.sin(dseta) * 1629);
	 dseta +=  0.000010010585// ALREDEDOR DE 10585
	});



	//Animacion URANO

	 var eta = 0;
	 scene.registerBeforeRender(function () {
	 urano.rotation.x += 0.01;
	 urano.rotation.z += 0.02;
	 urano.position = new BABYLON.Vector3(Math.cos(eta) *3070, 10, Math.sin(eta) * 3070);
	 eta +=  0.000010030660// ALREDEDOR DE 30660 DIAS
	});



	//Animacion NEPTUNO

	 var iota = 0;
	 scene.registerBeforeRender(function () {
	 neptuno.rotation.x += 0.01;
	 neptuno.rotation.z += 0.02;
	 neptuno.position = new BABYLON.Vector3(Math.cos(iota) *4704, 10, Math.sin(iota) * 4704);
	 iota +=  0.000010059860;// ALREDEDOR DE 59860 DIAS
	});



	//PLUTON NO EXISTE



	return scene;
};