private static void GenerateTerrainWithPerlinNoise(ref Tile[,] grid, float seaLevel = 0.33f)
{
PerlinNoise pn = new PerlinNoise(perlinSeed);
int nOctaves = pn.CalculateMaxOctavesCount(Utils.MapSize);
float fBias = 2f;
float[,] perlinArray = new float[Utils.MapSize, Utils.MapSize];
pn.Get2DPerlinNoise(Utils.MapSize, Utils.MapSize, nOctaves, fBias, ref perlinArray);
//Min and max values that perlin array has
float minP = 1;
float maxP = 0;
//calculating max and min values of perlin array
for (int x = 0; x < Utils.MapSize; x++)
{
for (int y = 0; y < Utils.MapSize; y++)
{
float v = perlinArray[x, y];
minP = Mathf.Min(v, minP);
maxP = Mathf.Max(v, maxP);
}
}
float elevationRange = maxP - minP;
float sea = minP + elevationRange * seaLevel;
float sand = sea + (maxP - sea) * 0.2f;
for (int x = 0; x < Utils.MapSize; x++)
{
for (int y = 0; y < Utils.MapSize; y++)
{
float height = perlinArray[x, y];
string dataName = "tile";
if (height < sea)
{
dataName = "water tile";
}
else if (height < sand)
{
dataName = "sand tile";
}
else
{
dataName = "grass tile";
}
grid[x, y] = Factory.CreateData <Tile>(dataName, new Vector2Int(x, y));
}
}
}
