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I've been using 1D Simplex Noise to create a random world surface, and it keeps generating with the same looking surface terrain, with some minor variations. Here is my sample code-

Tile[][] tiles = new Tile[rows][];
for (int i = 0; i < rows; i++)
{
    tiles[i] = new Tile[cols];
    for (int x = 0; x < cols; x++)
    {
        tiles[i][x] = new Tile(0, new Vector2(x, i), scale);
    }
}

int left = Main.rand.Next(rows / 4, rows / 2);

double seed = Main.rand.NextDouble();
for (int i = 0; i < cols; i++)
{
    int height = left + (int)(Noise.Generate((float)seed) * 10);
    height = (int)MathHelper.Clamp(height, 0, rows - 1);
    tiles[height][i] = new Tile(2, new Vector2(i, height), scale);
    //FillLower just fills everything under the top tile
    FillLower(tiles, height, i, scale);
    seed += .05f;
}

My question is am I doing something wrong with the Simplex Noise method? How should I generate it so it'll look different?

Images for reference- http://imgur.com/I0g98z8,M61UBfb,tYPflb7

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  • \$\begingroup\$ The Noise class documentation may be usefull. \$\endgroup\$ Commented Jun 3, 2015 at 11:05
  • \$\begingroup\$ code.google.com/p/simplexnoise \$\endgroup\$ Commented Jun 3, 2015 at 20:45

1 Answer 1

Reset to default
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double seed = Main.rand.NextDouble();

give you a 0..1 double value

(float)seed) * 10

give you a 0..10 value

seed += .05f;

give a little delta.

Try 

double seed = Main.rand.NextDouble() * 255.0; //or greater
...
int height = left + (int)(Noise.Generate((float)seed) );
...
seed += 1.0; //play with this increment
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2
  • \$\begingroup\$ When I do it this way, I just get a straight line for my terrain generation. \$\endgroup\$ Commented Jun 3, 2015 at 20:43
  • \$\begingroup\$ Whoops, figured it out (I think). \$\endgroup\$ Commented Jun 3, 2015 at 20:47

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