NeHe002.cs :  » Game » SDL » SdlDotNetExamples » NeHe » C# / CSharp Open Source

#region License
/*
MIT License
Copyright 2003-2005 Tao Framework Team
http://www.taoframework.com
All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/
#endregion License

using System;
using System.Diagnostics.CodeAnalysis;

using Tao.OpenGl;
using SdlDotNet.Core;

namespace SdlDotNetExamples.NeHe{
    /// <summary>
    /// Lesson 02: Your First Polygon
    /// </summary>
    [SuppressMessage("Microsoft.Naming", "CA1706:ShortAcronymsShouldBeUppercase", Justification = "Correct Spelling")]
    public class NeHe002 : NeHe001
    {
        #region Fields

        /// <summary>
        /// Lesson Title
        /// </summary>
        public new static string Title
        {
            get
            {
                return "Lesson 02: Your First Polygon";
            }
        }

        #endregion Fields

        #region Lesson Setup

        /// <summary>
        /// Initializes the OpenGL system
        /// </summary>
        protected override void InitGL()
        {
            // Enable Smooth Shading
            Gl.glShadeModel(Gl.GL_SMOOTH);
            // Black Background
            Gl.glClearColor(0.0F, 0.0F, 0.0F, 0.5F);
            // Depth Buffer Setup
            Gl.glClearDepth(1.0F);
            // Enables Depth Testing
            Gl.glEnable(Gl.GL_DEPTH_TEST);
            // The Type Of Depth Testing To Do
            Gl.glDepthFunc(Gl.GL_LEQUAL);
            // Really Nice Perspective Calculations
            Gl.glHint(Gl.GL_PERSPECTIVE_CORRECTION_HINT, Gl.GL_NICEST);
        }

        #endregion Lesson Setup

        #region void DrawGLScene
        /// <summary>
        /// Renders the scene
        /// </summary>
        protected override void DrawGLScene()
        {
            // Clear Screen And Depth Buffer
            Gl.glClear(Gl.GL_COLOR_BUFFER_BIT | Gl.GL_DEPTH_BUFFER_BIT);
            // Reset The Current Modelview Matrix
            Gl.glLoadIdentity();
            // Move Left 1.5 Units And Into The Screen 6.0
            Gl.glTranslatef(-1.5f, 0, -6);
            // Drawing Using Triangles
            Gl.glBegin(Gl.GL_TRIANGLES);
            // Top
            Gl.glVertex3f(0, 1, 0);
            // Bottom Left
            Gl.glVertex3f(-1, -1, 0);
            // Bottom Right
            Gl.glVertex3f(1, -1, 0);
            // Finished Drawing The Triangle
            Gl.glEnd();
            // Move Right 3 Units
            Gl.glTranslatef(3, 0, 0);
            // Draw A Quad
            Gl.glBegin(Gl.GL_QUADS);
            // Top Left
            Gl.glVertex3f(-1, 1, 0);
            // Top Right
            Gl.glVertex3f(1, 1, 0);
            // Bottom Right
            Gl.glVertex3f(1, -1, 0);
            // Bottom Left
            Gl.glVertex3f(-1, -1, 0);
            // Done Drawing The Quad
            Gl.glEnd();
        }
        #endregion void DrawGLScene

        #region Run Loop
        /// <summary>
        /// Starts lesson
        /// </summary>
        [STAThread]
        public static new void Run()
        {
            NeHe002 t = new NeHe002();
            t.Reshape();
            t.InitGL();
            Events.Run();
        }

        #endregion Run Loop
    }
}