Terrain Generator Based on http://www.stuffwithstuff.com/robot-frog/3d/hills/index.html

TerrainGen.cs

/*  Procedural Terrain Generation
 *  Peter Taylor (EmersonT1)
 *  Created: 29th November 2015  
 *  A C# implementation of http://www.stuffwithstuff.com/robot-frog/3d/hills/index.html
 */
using System;

namespace Test1
{
    class TerrainGen
    {
        ushort[,] Points;
        Random R;
        ushort MaxRadius;
        public TerrainGen()
        {
            Points = new ushort[1024,1024];
            R = new Random();
            MaxRadius = 50;//Can gu up to 
            //Initialise Array; all at 0 height
            for(ushort i = 0; i < 1024; i++)
                for (ushort j = 0; j < 1024; j++)
                    Points[i, j] = 0;

            //Generate the Terrain
            for(ushort iterations = 0; iterations < 200; iterations++)
            {
                Tuple<ushort, ushort> Centre = new Tuple<ushort, ushort>((ushort)R.Next(0, 1024), (ushort)R.Next(0, 1024));
                ushort Radius = (ushort)R.Next(0, MaxRadius);
                for (ushort x = 0; x < 1024; x++)
                    for (ushort y = 0; y < 1024; y++)//TODO: Condense Loop
                    {
                        int H = (int)(Math.Pow((double)Radius, 2) - (Math.Pow(x - Centre.Item1, 2)+ Math.Pow(y - Centre.Item2, 2)));
                        if (H <= 0)
                            Points[x, y] =(ushort)(H + Points[x,y]);
                    }
            }
        }
    }
}