/SolarSystem.Wpf/SystemController.cs

using SharpGL;

using SharpGL.SceneGraph.Assets;

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

using System.Text;



namespace SolarSystem.Wpf

{

    public class SystemController

    {

        private System system;

        private Normalizer normalizer;

        private Dictionary<Body, Texture> bodyTextures;



        public SystemController(System system, Normalizer normalizer)

        {

            this.system = system;

            this.normalizer = normalizer;

            bodyTextures = new Dictionary<Body, Texture>();

        }



        public void Render(OpenGL gl)

        {

            foreach (var body in system.Bodies)

                DrawBody(gl, body);

        }



        private void DrawBody(OpenGL gl, Body body)

        {

            gl.PushMatrix();

            gl.Translate(normalizer.NormalizePosition(body.Position[0]), 0, normalizer.NormalizePosition(body.Position[1]));



            var quad = gl.NewQuadric();



            if (bodyTextures.ContainsKey(body))

            {

                var texture = bodyTextures[body];

                texture.Bind(gl);

            }



            gl.Color(1f, 1f, 1f);

            gl.Rotate(90, 1.0f, 0.0f, 0.0f);

            gl.Rotate(body.Rotation, 0.0f, 0.0f, 1.0f);

            gl.QuadricTexture(quad, 1);

            gl.Sphere(quad, normalizer.NormalizeRadius(body.Radius), 20, 20);

            gl.PopMatrix();

            gl.BindTexture(OpenGL.GL_TEXTURE_2D, 0);

        }



        public void LoadBodyTextures(OpenGL gl)

        {

            foreach (var body in system.Bodies)

            {

                var textureFileName = String.Format(@"Textures\{0}_map.jpg", body.Name);



                if (File.Exists(textureFileName))

                {

                    var texture = new Texture();

                    texture.Create(gl, textureFileName);

                    bodyTextures.Add(body, texture);

                }

            }

        }

    }    

}