public static void Init(Map map)
{
ModExt_Biome_GenStep_Islands extIslands = map.Biome.GetModExtension <ModExt_Biome_GenStep_Islands>();
if (extIslands == null)
{
return;
}
IslandNoises.extIslands = extIslands;
string noiseLabel = "islands " + map.Biome.defName;
// Base noise
ModuleBase moduleBase = new Perlin(extIslands.baseFrequency, 2.0, 0.5, 5, Rand.Range(0, int.MaxValue), QualityMode.High);
NoiseDebugUI.StoreNoiseRender(moduleBase, noiseLabel + " base");
// Elevation noise scaling
noiseElevation = new ScaleBias(extIslands.noiseElevationPreScale, extIslands.noiseElevationPreOffset, moduleBase);
NoiseDebugUI.StoreNoiseRender(noiseElevation, noiseLabel + " elevation");
// Fertility noise scaling
noiseFertility = new ScaleBias(extIslands.noiseFertilityPreScale, extIslands.noiseFertilityPreOffset, moduleBase);
NoiseDebugUI.StoreNoiseRender(noiseFertility, noiseLabel + " fertility");
// Create island cones
islandCones = new List <IslandCone>();
int count = Rand.Range(extIslands.islandCountMin, extIslands.islandCountMax);
for (int i = 0; i < count; i++)
{
IslandCone islandCone = new IslandCone();
SetIslandOnRandomLocation(ref islandCone, map);
islandCones.Add(islandCone);
}
}
private static float GetValueAt(IntVec3 cell, ModuleBase noise)
{
// Calculate value for this cell
float val = -1000f;
for (int i = 0; i < islandCones.Count; i++)
{
// Calculate value
IslandCone cone = islandCones[i];
float distX = cone.centerX - cell.x;
float distZ = cone.distZFactor * (cone.centerZ - cell.z);
float distSquared = distX * distX + distZ * distZ;
float value = GenMath.LerpDouble(0f, cone.radiusSquared, extIslands.centerHeightValue, 0f, distSquared);
// Kepp the highest value
if (value > val)
{
val = value;
}
}
val += noise.GetValue(cell);
// Invert values over threshold
if (val > extIslands.invertOver)
{
val -= (val - extIslands.invertOver) * 2;
}
// Invert values under threshold
if (val < extIslands.invertUnder)
{
val += (extIslands.invertUnder - val) * 2;
// Cut too large values
if (val > extIslands.centerHeightValue)
{
val = extIslands.centerHeightValue;
}
}
// Cut too small values
if (val < 0f)
{
val = 0f;
}
// Invert all
if (extIslands.invertSwap)
{
val = extIslands.centerHeightValue - val;
}
return(val);
}
private static void SetIslandOnRandomLocation(ref IslandCone islandNoise, Map map)
{
ModExt_Biome_GenStep_Islands extIslands = map.Biome.GetModExtension <ModExt_Biome_GenStep_Islands>();
int minSizeX = (int)(map.Size.x * extIslands.minSizeX);
int maxSizeX = (int)(map.Size.x * extIslands.maxSizeX);
int minSizeZ = (int)(map.Size.z * extIslands.minSizeZ);
int maxSizeZ = (int)(map.Size.z * extIslands.maxSizeZ);
// Calculate coordinates
int radiusX = Rand.Range(minSizeX, maxSizeX) / 2;
int radiusZ = Rand.Range(minSizeZ, maxSizeZ) / 2;
islandNoise.radiusX = radiusX;
islandNoise.radiusZ = radiusZ;
islandNoise.centerX = Rand.Range(radiusX + 5, map.Size.x - radiusX - 5);
islandNoise.centerZ = Rand.Range(radiusZ + 5, map.Size.z - radiusZ - 5);
islandNoise.distZFactor = (float)radiusX / radiusZ;
islandNoise.radiusSquared = radiusX * radiusX;
}
