public void Abs(object value, object expected)
{
// Act
var result = _sut.Abs(value);
// Assert
result.Should().Be(expected);
}
private float[] GenerateHeightMap(Biome[] biomes, int chunkX, int chunkZ)
{
int minX = (chunkX * 16) - 1;
int minZ = (chunkZ * 16) - 1;
var maxX = ((chunkX + 1) << 4) - 1;
var maxZ = ((chunkZ + 1) << 4) - 1;
int cx = (chunkX * 16);
int cz = (chunkZ * 16);
float q11 = MathHelpers.Abs(WaterLevel + (128f * biomes[0].MaxHeight) * _mainNoise.GetValue(minX, minZ));
float q12 = MathHelpers.Abs(WaterLevel + (128f * biomes[15].MaxHeight) * _mainNoise.GetValue(minX, maxZ));
float q21 = MathHelpers.Abs(WaterLevel + (128f * biomes[240].MaxHeight) * _mainNoise.GetValue(maxX, minZ));
float q22 = MathHelpers.Abs(WaterLevel + (128f * biomes[255].MaxHeight) * _mainNoise.GetValue(maxX, maxZ));
/*float q11 = WaterLevel + 128f * MathHelpers.Abs(_mainNoise.GetValue(minX, minZ));
* float q12 = WaterLevel + 128f * MathHelpers.Abs(_mainNoise.GetValue(minX, maxZ));
*
* float q21 = WaterLevel + 128f * MathHelpers.Abs(_mainNoise.GetValue(maxX, minZ));
* float q22 = WaterLevel + 128f * MathHelpers.Abs(_mainNoise.GetValue(maxX, maxZ));*/
float[] heightMap = new float[16 * 16];
for (int x = 0; x < 16; x++)
{
float rx = cx + x;
for (int z = 0; z < 16; z++)
{
float rz = cz + z;
var baseNoise = MathHelpers.BilinearCmr(
rx, rz,
q11,
q12,
q21,
q22,
minX, maxX, minZ, maxZ);
heightMap[(x << 4) + z] = baseNoise; //WaterLevel + ((128f * baseNoise));
}
}
return(heightMap);
}
public override void Decorate(ChunkColumn column, Biome biome, float[] thresholdMap, int x, int y, int z, bool surface,
bool isBelowMaxHeight)
{
if (surface || column.GetBlock(x, y, z) != 1 && isBelowMaxHeight)
{
return;
}
if (isBelowMaxHeight && !surface)
{
int rx = column.x * 16 + x;
int rz = column.z * 16 + z;
var noise = _simplex.GetValue(rx, y, rz);
foreach (var ore in Ores.Where(o => o.MinY <y && o.MaxY> y))
{
var weightOffsets = (ore.MaxY > 30) ? HighWeightOffset : LowWeightOffset;
if (MathHelpers.Abs(noise) * 3f < ore.Rarity)
{
double weight = 0;
for (int i = 0; i < 4; i++)
{
weight += _random.NextDouble();
}
weight /= ore.Rarity;
weight = weightOffsets[0] - MathHelpers.Abs((float)weight - weightOffsets[1]);
if (noise > weight)
{
int xOffset = 0;
int zOffset = 0;
int yOffset = 0;
for (int i = 0; i < _random.Next(0, ore.Abundance); i++)
{
int offset = _random.Next(0, 3);
double offset2 = _random.NextDouble();
if (offset.Equals(0) && offset2 < 0.4)
{
xOffset += 1;
}
else if (offset.Equals(1) && offset2 >= 0.4 && offset2 < 0.65)
{
yOffset += 1;
}
else
{
zOffset += 1;
}
var mX = Math.Min(x + xOffset, x);
var my = Math.Min(y + yOffset, ore.MaxY);
var mz = Math.Min(z + zOffset, z);
if (column.GetBlock(mX, my, mz) != 1)
{
return;
}
column.SetBlock(mX, my, mz, ore.ID);
}
}
}
}
}
}
private static float GetSquaredDistance(Biome biome, float temp, float rain)
{
return(MathHelpers.Abs((biome.Temperature - temp) * (biome.Temperature - temp) + (biome.Downfall - rain) * (biome.Downfall - rain)));
}
