Code

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace ColorRetreiver
{

    class Program
    {
        static OpenFileDialog file = new OpenFileDialog();
        static Bitmap image;
        [STAThread]
        static void Main(string[] args)
        {
            Console.WriteLine("----- made by ya boii, juan --------");
            Console.WriteLine("\nSelecteer een foto bestand, zorg dat dit een sprite is, dus niet teveel pixels heeft, anders heb je heel veel lines of code.");
            Console.WriteLine("\n\nFoto bestand: ....");
            Thread.Sleep(5000);
        one:
            using (var selectFileDialog = new OpenFileDialog())
            {
                selectFileDialog.Filter = "Image Files(*.BMP;*.JPG;*.GIF;*.JPEG;*.PNG)|*.BMP;*.JPG;*.GIF;*.JPEG;*.PNG";
                if (selectFileDialog.ShowDialog() == DialogResult.OK)
                {
                    Console.WriteLine(selectFileDialog.FileName);
                    image = new Bitmap(selectFileDialog.FileName);
                }
            }
            if (image == null)
                goto one;
            Console.WriteLine("\n\nVergroter: ");
            List<string> code = new List<string>();
            //Thread.Sleep(2500);
            float multiplier = float.Parse(Console.ReadLine());
            Console.WriteLine("\n\n Offset x: ");
            float offsetx = float.Parse(Console.ReadLine());
            Console.WriteLine("\n\n Offset y: ");
            float offsety = float.Parse(Console.ReadLine());
            Console.WriteLine("De originele foto is " + image.Width + " pixels breed en " + image.Height + " pixels hoog");
            Color lastcolor = Color.AliceBlue;
            for (int i = 0; i < image.Width; i++)
            {
                for (int j = 0; j < image.Height; j++)
                {
                    Color pixel = image.GetPixel(i, j);
                    if (pixel != lastcolor && pixel != Color.Transparent)
                    {
                        code.Add("GAME_ENGINE.SetColor(" + pixel.R + "," + pixel.G + "," + pixel.B + "," + pixel.A + ");");
                        lastcolor = pixel;
                    }
                    //GAME_ENGINE.FillRectangle(x, y, w, h);
                    if (pixel != Color.Transparent)
                        code.Add("GAME_ENGINE.FillRectangle(" + (i * multiplier + offsetx) + ", " + (j * multiplier + offsety) + ", " + 1 * multiplier + ", " + 1 * multiplier + ");");
                }
            }

            using (FileStream fs = File.Open("thacodeboyyy.txt", FileMode.Create))
            {
                StreamWriter sw = new StreamWriter(fs);
                code.ForEach(r => sw.WriteLine(r));
            }
            Console.WriteLine("Dooone");
            Process.Start("thacodeboyyy.txt");

            Console.ReadLine();
        }
    }
}