Cosmos VBE Bufferd.cs

 public static class Screen
    {
        public static int ClearColor { get; set; } = 0x167F39;
        

        public static sys.VBEScreen Vbe = new sys.VBEScreen();

        private static int[] Buffer = new int[0];

        public static void Init()
        {
            Vbe.SetMode(sys.VBEScreen.ScreenSize.Size1280x1024, sys.VBEScreen.Bpp.Bpp24);
            Buffer = new int[Vbe.ScreenHeight * Vbe.ScreenWidth];
            for (int i = 0; i < Vbe.ScreenHeight * Vbe.ScreenWidth; i++)
            {
                Buffer[i] = ClearColor;
            }
            Vbe.Clear((uint)ClearColor);
        }

        public static void SetPixel(int x, int y, int c)
        {
            if(x < Vbe.ScreenWidth && y < Vbe.ScreenHeight)
             Buffer[(y * Vbe.ScreenWidth) + x] = c;
        
        }

        public static int GetPixel(int x, int y)
        {
            return Buffer[(y * Vbe.ScreenWidth) + x];
        }

        public static void Redraw()
        {
            int c = 0;
            for (int x = 0; x < Vbe.ScreenWidth; x++)
            {
                for (int y = 0; y < Vbe.ScreenHeight; y++)
                {
                    var px = Buffer[(y * Vbe.ScreenWidth) + x];
                    if (Vbe.GetPixel((uint)x, (uint)y) != px)
                    {
                        Vbe.SetPixel((uint)x, (uint)y, (uint)px);
                    }
                    c++;
                }
            }
            for (int i = 0; i < Vbe.ScreenHeight * Vbe.ScreenWidth; i++)
            {
                Buffer[i] = ClearColor;
            }
        }

        public static void DrawRect(int x, int y, int w, int h, int c)
        {
            for (int w1 = 0; w1 < w; w1++)
            {
                for (int h1 = 0; h1 < h; h1++)
                {
                    SetPixel(x + w1, y + h1, c);
                }
            }
        }
    }


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 public class Kernel : Sys.Kernel
    {
        public Desktop d = new Desktop();

        protected override void BeforeRun()
        {
            Screen.Init();
        }

        protected override void Run()
        {
            //Draw your Screen here
            
            Screen.Redraw();
        }
    }