private void BuildTree(int tx, int ty, int tz)
{
int height = 4 + r.Next(3);
if ((ty + height) < WorldSettings.MAPHEIGHT)
{
for (int y = ty; y < ty + height; y++)
{
_map[tx, y, tz] = BlockType.Tree;
}
}
int radius = 3 + r.Next(2);
int ny = ty + height;
for (int i = 0; i < 40 + r.Next(4); i++)
{
int lx = tx + r.Next(radius) - r.Next(radius);
int ly = ny + r.Next(radius) - r.Next(radius);
int lz = tz + r.Next(radius) - r.Next(radius);
if (MapTools.WithinMapBounds(lx, ly, lz))
{
if (_map[lx, ly, lz] == BlockType.None)
{
_map[lx, ly, lz] = BlockType.Leaves;
}
}
}
}
private void GenerateSandLayer()
{
List <PerlinNoise2D> noiseFunctions = new List <PerlinNoise2D>();
noiseFunctions.Add(new PerlinNoise2D(4, 2f));
noiseFunctions.Add(new PerlinNoise2D(8, .5f));
noiseFunctions.Add(new PerlinNoise2D(12, .25f));
noiseFunctions.Add(new PerlinNoise2D(26, .125f));
noiseFunctions.Add(new PerlinNoise2D(34, .0625f));
noiseFunctions.Add(new PerlinNoise2D(64, .0425f));
double[,] data = MapTools.SumNoiseFunctions(WorldSettings.MAPWIDTH, WorldSettings.MAPLENGTH, noiseFunctions);
for (int x = 0; x < WorldSettings.MAPWIDTH; x++)
{
for (int z = 0; z < WorldSettings.MAPLENGTH; z++)
{
int height = (int)(data[x, z] * 5) + 20 + WorldSettings.SEALEVEL;
for (int y = 0; y < height; y++)
{
if (_map[x, y, z] == BlockType.None)
{
_map[x, y, z] = BlockType.Sand;
}
}
}
}
}
public BlockType[, ,] GenerateMap()
{
_map = new BlockType[WorldSettings.MAPWIDTH, WorldSettings.MAPHEIGHT, WorldSettings.MAPLENGTH];
MapTools.Clear(_map, BlockType.None);
GenerateRockLayer();
GenerateDirtLayer(15, false);
CarveLandscape();
GenerateDirtLayer(10, true);
GenerateSandLayer();
CarveTunnels(200);
GenerateWaterLayer();
return(_map);
}
private void GenerateDirtLayer(int offset, bool trees)
{
List <PerlinNoise2D> noiseFunctions = new List <PerlinNoise2D>();
noiseFunctions.Add(new PerlinNoise2D(4, 2f));
noiseFunctions.Add(new PerlinNoise2D(8, .5f));
noiseFunctions.Add(new PerlinNoise2D(12, .25f));
noiseFunctions.Add(new PerlinNoise2D(26, .125f));
noiseFunctions.Add(new PerlinNoise2D(34, .0625f));
noiseFunctions.Add(new PerlinNoise2D(64, .0125f));
double[,] data = MapTools.SumNoiseFunctions(WorldSettings.MAPWIDTH, WorldSettings.MAPLENGTH, noiseFunctions);
for (int x = 0; x < WorldSettings.MAPWIDTH; x++)
{
for (int z = 0; z < WorldSettings.MAPLENGTH; z++)
{
int height = (int)(data[x, z] * 20) + offset + WorldSettings.SEALEVEL;
for (int y = 0; y < height; y++)
{
if (_map[x, y, z] == BlockType.None)
{
if (y == height - 1)
{
if (r.Next(250) == 1 && trees)
{
BuildTree(x, y, z);
}
else
{
_map[x, y, z] = BlockType.Grass;
}
}
else
{
if (r.Next(20) == 1)
{
_map[x, y, z] = BlockType.Gravel;
}
else
{
_map[x, y, z] = BlockType.Dirt;
}
}
}
}
}
}
}
private void CarveLandscape()
{
List <PerlinNoise2D> heightFunctions1 = new List <PerlinNoise2D>();
heightFunctions1.Add(new PerlinNoise2D(1, 2f));
heightFunctions1.Add(new PerlinNoise2D(8, 1.5f));
heightFunctions1.Add(new PerlinNoise2D(12, .25f));
heightFunctions1.Add(new PerlinNoise2D(26, 2.625f));
heightFunctions1.Add(new PerlinNoise2D(34, .0625f));
heightFunctions1.Add(new PerlinNoise2D(64, 0.1425f));
List <PerlinNoise2D> heightFunctions2 = new List <PerlinNoise2D>();
heightFunctions2.Add(new PerlinNoise2D(2, 2f));
heightFunctions2.Add(new PerlinNoise2D(8, .5f));
heightFunctions2.Add(new PerlinNoise2D(12, .25f));
heightFunctions2.Add(new PerlinNoise2D(26, 3.125f));
heightFunctions2.Add(new PerlinNoise2D(34, .0625f));
heightFunctions2.Add(new PerlinNoise2D(64, 0.1425f));
double[,] heightData1 = MapTools.SumNoiseFunctions(WorldSettings.MAPWIDTH, WorldSettings.MAPLENGTH, heightFunctions1);
double[,] heightData2 = MapTools.SumNoiseFunctions(WorldSettings.MAPWIDTH, WorldSettings.MAPLENGTH, heightFunctions2);
for (int x = 0; x < WorldSettings.MAPWIDTH; x++)
{
for (int z = 0; z < WorldSettings.MAPLENGTH; z++)
{
int height1 = (int)(heightData1[x, z] * 10) + 3 + WorldSettings.SEALEVEL;
int height2 = (int)(heightData2[x, z] * 15) + 5 + WorldSettings.SEALEVEL;
if (height2 > WorldSettings.MAPHEIGHT)
{
height2 = WorldSettings.MAPHEIGHT;
}
if (height2 > height1)
{
for (int y = height1; y < height2; y++)
{
_map[x, y, z] = BlockType.None;
}
}
}
}
}
private void GenerateRockLayer()
{
List <PerlinNoise2D> noiseFunctions = new List <PerlinNoise2D>();
noiseFunctions.Add(new PerlinNoise2D(4, 5f));
noiseFunctions.Add(new PerlinNoise2D(8, .5f));
noiseFunctions.Add(new PerlinNoise2D(12, .25f));
noiseFunctions.Add(new PerlinNoise2D(26, .125f));
noiseFunctions.Add(new PerlinNoise2D(34, .0625f));
noiseFunctions.Add(new PerlinNoise2D(64, .3825f));
double[,] data = MapTools.SumNoiseFunctions(WorldSettings.MAPWIDTH, WorldSettings.MAPLENGTH, noiseFunctions);
for (int x = 0; x < WorldSettings.MAPWIDTH; x++)
{
for (int z = 0; z < WorldSettings.MAPLENGTH; z++)
{
int height = (int)(data[x, z] * 10) + 15 + WorldSettings.SEALEVEL;
for (int y = 0; y < height; y++)
{
if (y > WorldSettings.SNOWLINE + r.Next(3))
{
_map[x, y, z] = BlockType.Snow;
}
else if (r.Next(8) == 1)
{
_map[x, y, z] = BlockType.Gravel;
}
else
{
_map[x, y, z] = BlockType.Rock;
}
}
}
}
}