Implementation of basic "Drunkard's Walk" path/map generation. Outputs a bitmap image.

DrunkardsWalk.cs

using System;
using System.Drawing;
using System.Drawing.Imaging;

namespace MapGen
{
    class Program
    {
        static readonly int MAP_WIDTH = 1000;
        static readonly int MAP_HEIGHT = 1000;
        static readonly int NUM_TILES = 100000;
        static readonly Vector START = new Vector(255, 255);

        static void Main(string[] args)
        {
            Vector currentPos = START;

            Console.WriteLine("Creating new bitmap");
            Bitmap bmp = new Bitmap(MAP_WIDTH, MAP_HEIGHT);
            for (int i = 0; i < MAP_WIDTH; i++)
            {
                for (int j = 0; j < MAP_HEIGHT; j++)
                {
                    bmp.SetPixel(i, j, Color.Black);
                }
            }

            Random rand = new Random();
            for (int i = 0; i < NUM_TILES; i++)
            {
                int direction = rand.Next(1, 5);
                switch (direction)
                {
                    case (int)Direction.N:
                        currentPos.y++;
                        break;
                    case (int)Direction.E:
                        currentPos.x++;
                        break;
                    case (int)Direction.S:
                        currentPos.y--;
                        break;
                    case (int)Direction.W:
                        currentPos.x--;
                        break;
                    default:
                        break;
                }
                bmp.SetPixel(currentPos.x, currentPos.y, Color.White);
                Console.WriteLine("Setting tile at " + currentPos.x + ", " + currentPos.y);
            }

            Graphics gBmp = Graphics.FromImage(bmp);
            gBmp.Dispose();
            bmp.Save("image.png", ImageFormat.Png);
        }
    }

    enum Direction
    {
        N = 1,
        E = 2,
        S = 3,
        W = 4
    }

    internal struct Vector
    {
        public int x;
        public int y;
        public int z;

        public Vector(int x, int y, int z = 0)
        {
            this.x = x;
            this.y = y;
            this.z = z;
        }
    }
}