public OverworldTerrain(OverworldTerrainSettings ots, bool isUnitTest = false)
{
settings = ots;
ocean = new OceanTerrain(ots);
plains = new PlainsTerrain(ots);
hills = new HillsTerrain(ots);
badlands = new BadlandsTerrain(ots);
mountains = new MountainsTerrain(ots);
rivers = new RiverTerrain(ots);
humidity = new HumidityNoise(ots);
temperature = new TemperatureNoise(ots);
terrain = new TerrainNoise(ots);
cave = new CavesCarver(ots);
// Scale Point multiplies input values by the scaling factors.
// Used to stretch or shrink the terrain horizontally.
var scaled = GetScaledModuleOutput(MergedLandOceanRivers());
//var scaled = GetScaledModuleOutput(LandOceanSelector());
//var scaled = GetScaledModuleOutput(temperature.RiverSelector);
// Scale bias scales the verical output (usually -1.0 to +1.0) to
// Minecraft values. If MinElev is 40 (leaving room for caves under oceans)
// and MaxElev is 168, a value of -1 becomes 40, and a value of 1 becomes 168.
var biased = new ScaleBias
{
Scale = (settings.MaxElev - settings.MinElev) / 2.0,
Bias = settings.MinElev + ((settings.MaxElev - settings.MinElev) / 2.0) - 44,
Source0 = scaled
};
Result = isUnitTest ? scaled : biased;
}
// I/F
public float GetTemperature(int x, int z)
{
float xf = x * inverseSizeX;
float zf = z * inverseSizeZ;
return(MathExtension.Saturate(TemperatureNoise.Sample(xf, 0, zf)));
}
private static void GenerateTemperature(PolygonMapGenerator PMG)
{
float poleTemperature = -12f;
float equatorTemperature = 35f;
float temperatureModifyRange = 15f;
TemperatureNoise noise = new TemperatureNoise(poleTemperature, equatorTemperature, temperatureModifyRange);
foreach (GraphPolygon polygon in PMG.Polygons)
{
float noiseValue = noise.GetValue(polygon.CenterPoi.x, polygon.CenterPoi.y, PMG.GenerationSettings);
polygon.Temperature = (int)noiseValue;
}
//if (Visualize) NoiseTester.DisplayNoise(noise, NoiseTester.TemperaturePlane, MapData, poleTemperature - temperatureModifyRange, equatorTemperature + temperatureModifyRange);
}
private static void GenerateTemperature()
{
float poleTemperature = -12f;
float equatorTemperature = 35f;
float temperatureModifyRange = 15f;
TemperatureNoise noise = new TemperatureNoise(poleTemperature, equatorTemperature, temperatureModifyRange);
foreach (TileData td in MapData.Tiles)
{
float noiseValue = noise.GetValue(td.Position.x, td.Position.z, MapData);
td.Temperature = (int)noiseValue;
}
if (Visualize)
{
NoiseTester.DisplayNoise(noise, NoiseTester.TemperaturePlane, MapData, poleTemperature - temperatureModifyRange, equatorTemperature + temperatureModifyRange);
}
}
private int[] CalculateBiomes(ChunkCoordinates coordinates, ChunkLandscape landscape)
{
// var biomes = BiomeProvider.GetBiomes().ToArray();
int worldX = coordinates.X << 4;
int worldZ = coordinates.Z << 4;
float[] weightedBiomes = new float[256];
var biomeData = new int[SampleArraySize * SampleArraySize];
for (int x = -SampleSize; x < SampleSize + 5; x++)
{
for (int z = -SampleSize; z < SampleSize + 5; z++)
{
var xx = worldX + ((x * 8f));
var zz = worldZ + ((z * 8f));
var temp = TemperatureNoise.GetValue(xx, zz);
//Note for self: The temperature noise returns a value between -1 & 1 however we need the value to be between 0 & 2.
//We do this by getting the absolute value (0 to 1) and multiplying it by 2.
temp = MathF.Abs(temp) * 2f;
var rain = MathF.Abs(RainfallNoise.GetValue(xx, zz));
if (temp < _lowestTemp)
{
_lowestTemp = temp;
}
if (temp > _highestTemp)
{
_highestTemp = temp;
}
if (rain < _lowestHumidity)
{
_lowestHumidity = rain;
}
if (rain > _highestHumidity)
{
_highestHumidity = rain;
}
_totalTemp += temp;
_totalHumidity += rain;
_totalLookups++;
if (_totalLookups % 1024 == 0)
{
/* Console.Clear();
*
* Console.WriteLine(
* $"Average temperature: {_totalTemp / _totalLookups} Highest: {_highestTemp} Lowest: {_lowestTemp}");
*
* Console.WriteLine(
* $"Average humidity: {_totalHumidity / _totalLookups} Highest: {_highestHumidity} Lowest: {_lowestHumidity}");
*
* Console.WriteLine($"Unique biomes: {_uniqueBiomes.Count}");*/
}
biomeData[(x + SampleSize) * SampleArraySize + (z + SampleSize)] = (BiomeProvider.GetBiome(
(float)temp, (float)rain).Id);
}
}
for (int x = 0; x < 16; x++)
{
for (int z = 0; z < 16; z++)
{
int index = NoiseMap.GetIndex(x, z);
float totalWeight = 0;
for (int mapX = 0; mapX < SampleArraySize; mapX++)
{
for (int mapZ = 0; mapZ < SampleArraySize; mapZ++)
{
float weight = _weightings[mapX * SampleArraySize + mapZ][(x << 4) + z];
if (weight > 0)
{
totalWeight += weight;
weightedBiomes[biomeData[mapX * SampleArraySize + mapZ]] += weight;
}
}
}
// normalize biome weights
for (int biomeIndex = 0; biomeIndex < weightedBiomes.Length; biomeIndex++)
{
weightedBiomes[biomeIndex] /= totalWeight;
}
// combine mesa biomes
// mesaCombiner.adjust(weightedBiomes);
landscape.Noise[index] = 0f;
float river = TerrainBase.GetRiverStrength(new BlockCoordinates(worldX + x, 0, worldZ + z), this);
landscape.River[index] = -river;
float maxWeight = 0f;
for (int i = 0; i < weightedBiomes.Length; i++)
{
var value = weightedBiomes[i];
if (value > 0f)
{
var biome = BiomeProvider.GetBiome(i);
landscape.Noise[index] += biome.RNoise(
this, worldX + x, worldZ + z, value, river + 1f) * value;
weightedBiomes[i] = 0f;
if (value > maxWeight)
{
maxWeight = value;
landscape.Biome[index] = biome;
if (!_uniqueBiomes.Contains(biome.Id))
{
_uniqueBiomes.TryAdd(biome.Id);
// Console.WriteLine($"Unique biomes: {uniqueBiomes.Count}");
}
}
}
}
//landscape.Biome[index] = weightedBiomes.;
// landscape.Biome[index] = BiomeProvider.GetBiome(i);
//landscape.Biome[index] = BiomeProvider.GetBiome();
}
}
return(biomeData);
}
private int[] CalculateBiomes(ChunkCoordinates coordinates, ChunkLandscape landscape)
{
int worldX = coordinates.X * 16;
int worldZ = coordinates.Z * 16;
float[] weightedBiomes = new float[256];
var biomeData = new int[SampleArraySize * SampleArraySize];
for (int x = -SampleSize; x < SampleSize + 5; x++)
{
for (int z = -SampleSize; z < SampleSize + 5; z++)
{
var temp = TemperatureNoise.GetValue(worldX + ((x * 8)), worldZ + ((z * 8)));
var rain = RainfallNoise.GetValue(worldX + ((x * 8)), worldZ + ((z * 8)));
biomeData[(x + SampleSize) * SampleArraySize + (z + SampleSize)] = (BiomeProvider.GetBiome((float)temp, (float)rain).Id);
}
}
for (int x = 0; x < 16; x++)
{
for (int z = 0; z < 16; z++)
{
int index = NoiseMap.GetIndex(x, z);
float totalWeight = 0;
for (int mapX = 0; mapX < SampleArraySize; mapX++)
{
for (int mapZ = 0; mapZ < SampleArraySize; mapZ++)
{
float weight = _weightings[mapX * SampleArraySize + mapZ][x * 16 + z];
if (weight > 0)
{
totalWeight += weight;
weightedBiomes[biomeData[mapX * SampleArraySize + mapZ]] += weight;
}
}
}
// normalize biome weights
for (int biomeIndex = 0; biomeIndex < weightedBiomes.Length; biomeIndex++)
{
weightedBiomes[biomeIndex] /= totalWeight;
}
// combine mesa biomes
// mesaCombiner.adjust(weightedBiomes);
landscape.Noise[index] = 0f;
float river = TerrainBase.GetRiverStrength(new BlockCoordinates(worldX + x, 0, worldZ + z), this);
landscape.River[index] = -river;
for (int i = 0; i < 256; i++)
{
var value = weightedBiomes[i];
if (value > 0f)
{
var biome = BiomeProvider.GetBiome(i);
landscape.Noise[index] += biome.RNoise(this, worldX + x, worldZ + z, value, river + 1f) * value;
landscape.Biome[index] = biome;
// 0 for the next column
weightedBiomes[i] = 0f;
}
}
// landscape.Biome[index] = BiomeProvider.GetBiome(i);
//landscape.Biome[index] = BiomeProvider.GetBiome();
}
}
for (int x = 0; x < 16; x++)
{
for (int z = 0; z < 16; z++)
{
BlockCoordinates pos = new BlockCoordinates(worldX + (x - 7) * 8 + 4, 0, worldZ + (z - 7) * 8 + 4);
// landscape.Biome[x * 16 + z] = BiomeProvider.GetBiome(pos.X, pos.Z);
}
}
return(biomeData);
}