public MyCompositeNoise(int numNoises,float startFrequency,MyRandom random)
{
m_numNoises = numNoises;
m_noises = new IMyModule[m_numNoises];
m_amplitudeScales = new float[m_numNoises];
m_normalizationFactor = 2.0f - 1.0f / (float)Math.Pow(2, numNoises - 1);
float frequency = startFrequency;
for (int i = 0; i < m_numNoises; ++i)
{
m_amplitudeScales[i] = 1.0f / (float)Math.Pow(2.0f, i);
m_noises[i] = new MySimplexFast(seed: random.Next(), frequency: frequency);
frequency *= 2.01f;
}
}
private static Vector3 CreateRandomPointOnBox(MyRandom self, float boxSize)
{
Vector3 result = Vector3.Zero;
switch (self.Next() & 6)
{// each side of a box
case 0: return new Vector3(0f, self.NextFloat(), self.NextFloat());
case 1: return new Vector3(1f, self.NextFloat(), self.NextFloat());
case 2: return new Vector3(self.NextFloat(), 0f, self.NextFloat());
case 3: return new Vector3(self.NextFloat(), 1f, self.NextFloat());
case 4: return new Vector3(self.NextFloat(), self.NextFloat(), 0f);
case 5: return new Vector3(self.NextFloat(), self.NextFloat(), 1f);
}
result *= boxSize;
return result;
}
private void GenerateObject(MyProceduralCell cell, MyObjectSeed objectSeed, ref int index, MyRandom random, IMyModule densityFunction)
{
cell.AddObject(objectSeed);
switch (objectSeed.Type)
{
case MyObjectSeedType.Asteroid:
m_asteroidSeedCount++;
break;
case MyObjectSeedType.AsteroidCluster:
objectSeed.Type = MyObjectSeedType.Asteroid;
m_asteroidSeedCount++;
m_tmpClusterBoxes.Add(objectSeed.BoundingVolume);
for (int j = 0; j < OBJECT_MAX_IN_CLUSTER; ++j)
{
var direction = GetRandomDirection(random);
var size = GetClusterObjectSize(random.NextDouble());
var distance = MathHelper.Lerp(OBJECT_MIN_DISTANCE_CLUSTER, OBJECT_MAX_DISTANCE_CLUSTER, random.NextDouble());
var clusterObjectPosition = objectSeed.BoundingVolume.Center + direction * (size + objectSeed.BoundingVolume.HalfExtents.Length() * 2 + distance);
ProfilerShort.Begin("GetValue");
var value = densityFunction.GetValue(clusterObjectPosition.X, clusterObjectPosition.Y, clusterObjectPosition.Z);
ProfilerShort.End();
if (value < OBJECT_DENSITY_CLUSTER) // -1..+1
{
var clusterObjectSeed = new MyObjectSeed(cell, clusterObjectPosition, size);
clusterObjectSeed.Seed = random.Next();
clusterObjectSeed.Index = index++;
clusterObjectSeed.Type = GetClusterSeedType(random.NextDouble());
bool overlaps = false;
foreach (var box in m_tmpClusterBoxes)
{
if (overlaps |= clusterObjectSeed.BoundingVolume.Intersects(box))
{
break;
}
}
if (!overlaps)
{
m_tmpClusterBoxes.Add(clusterObjectSeed.BoundingVolume);
GenerateObject(cell, clusterObjectSeed, ref index, random, densityFunction);
}
}
}
m_tmpClusterBoxes.Clear();
break;
case MyObjectSeedType.EncounterAlone:
case MyObjectSeedType.EncounterSingle:
case MyObjectSeedType.EncounterMulti:
m_encounterSeedCount++;
break;
default:
throw new InvalidBranchException();
break;
}
}
private void GenerateObject(MyProceduralCell cell, MyObjectSeed objectSeed, ref int index, MyRandom random, IMyModule densityFunctionFilled, IMyModule densityFunctionRemoved)
{
cell.AddObject(objectSeed);
IMyAsteroidFieldDensityFunction func = objectSeed.UserData as IMyAsteroidFieldDensityFunction;
if (func != null)
{
ChildrenAddDensityFunctionRemoved(func);
}
switch (objectSeed.Type)
{
case MyObjectSeedType.Moon:
break;
case MyObjectSeedType.Planet:
m_tmpClusterBoxes.Add(objectSeed.BoundingVolume);
for (int i = 0; i < MOONS_MAX; ++i)
{
var direction = GetRandomDirection(random);
var size = MathHelper.Lerp(MOON_SIZE_MIN, MOON_SIZE_MAX, random.NextDouble());
var distance = MathHelper.Lerp(MOON_DISTANCE_MIN, MOON_DISTANCE_MAX, random.NextDouble());
var position = objectSeed.BoundingVolume.Center + direction * (size + objectSeed.BoundingVolume.HalfExtents.Length() * 2 + distance);
ProfilerShort.Begin("GetValue");
var value = densityFunctionFilled.GetValue(position.X, position.Y, position.Z);
ProfilerShort.End();
if (value < MOON_DENSITY) // -1..+1
{
var clusterObjectSeed = new MyObjectSeed(cell, position, size);
clusterObjectSeed.Seed = random.Next();
clusterObjectSeed.Type = MyObjectSeedType.Moon;
clusterObjectSeed.Index = index++;
clusterObjectSeed.UserData = new MySphereDensityFunction(position, OBJECT_SEED_RADIUS, OBJECT_SEED_RADIUS);
bool overlaps = false;
foreach (var box in m_tmpClusterBoxes)
{
if (overlaps |= clusterObjectSeed.BoundingVolume.Intersects(box))
{
break;
}
}
if (!overlaps)
{
m_tmpClusterBoxes.Add(clusterObjectSeed.BoundingVolume);
GenerateObject(cell, clusterObjectSeed, ref index, random, densityFunctionFilled, densityFunctionRemoved);
}
}
}
m_tmpClusterBoxes.Clear();
break;
case MyObjectSeedType.Empty:
break;
default:
throw new InvalidBranchException();
break;
}
}
private static MyMaterialLayer[] CreateMaterialLayers(MyPlanetDefinition planetDefinition, bool isHostile, MyRandom random, float averagePlanetRadius, float hillHalfDeviation, float canyonHalfDeviation, ref float outerRadius, ref float innerRadius)
{
int numLayers = random.Next((int)planetDefinition.NumLayers.Min, (int)planetDefinition.NumLayers.Max);
float startHeight = averagePlanetRadius - canyonHalfDeviation;
outerRadius = averagePlanetRadius + hillHalfDeviation;
innerRadius = averagePlanetRadius - canyonHalfDeviation;
int layerOffset = 0;
MyMaterialLayer southPoleLayer = CreatePoleLayer(random, planetDefinition.SouthPole, startHeight, outerRadius, ref layerOffset);
MyMaterialLayer northPoleLayer = CreatePoleLayer(random, planetDefinition.NorthPole, startHeight, outerRadius, ref layerOffset);
MyMaterialLayer[] materialLayers = new MyMaterialLayer[numLayers + layerOffset];
float endAngle = 1;
float startAngle = -1;
int currentLayer = 0;
if (southPoleLayer != null)
{
materialLayers[currentLayer] = southPoleLayer;
endAngle = southPoleLayer.StartAngle;
currentLayer++;
}
if (northPoleLayer != null)
{
materialLayers[currentLayer] = northPoleLayer;
northPoleLayer.EndAngle = northPoleLayer.StartAngle;
northPoleLayer.StartAngle = -1.0f;
northPoleLayer.AngleEndDeviation = northPoleLayer.AngleStartDeviation;
northPoleLayer.AngleStartDeviation = 0.0f;
startAngle = northPoleLayer.EndAngle;
}
float step = (outerRadius - innerRadius) / materialLayers.Length;
float organicHeightEnd = random.NextFloat(planetDefinition.OrganicHeightEnd.Min, planetDefinition.OrganicHeightEnd.Max);
float metalsHeightEnd = random.NextFloat(planetDefinition.MetalsHeightEndHostile.Min, planetDefinition.MetalsHeightEndHostile.Max);
float floraMaterialSpawnProbability = random.NextFloat(planetDefinition.FloraMaterialSpawnProbability.Min, planetDefinition.FloraMaterialSpawnProbability.Max);
float metalsSpawnProbability = random.NextFloat(planetDefinition.MetalsSpawnProbability.Min, planetDefinition.MetalsSpawnProbability.Max);
float metalsSpawnValue = random.NextFloat(0, 1);
for (int i = layerOffset; i < materialLayers.Length; ++i)
{
float layerHeight = random.NextFloat(0, step);
materialLayers[i] = new MyMaterialLayer();
materialLayers[i].StartHeight = startHeight;
materialLayers[i].EndHeight = startHeight + layerHeight;
materialLayers[i].StartAngle = startAngle;
materialLayers[i].EndAngle = endAngle;
materialLayers[i].HeightStartDeviation = random.NextFloat(0, 100.0f / (float)(i + 1));
materialLayers[i].AngleStartDeviation = 0;
materialLayers[i].HeightEndDeviation = random.NextFloat(0, 100.0f / (float)(i + 1));
materialLayers[i].AngleEndDeviation = 0;
MyVoxelMaterialDefinition materialDefinition = null;
if (m_materialsByOreType.ContainsKey("Stone") == true)
{
materialDefinition = m_materialsByOreType["Stone"][random.Next() % m_materialsByOreType["Stone"].Count];
}
if (planetDefinition.HasAtmosphere && isHostile == false)
{
if ((outerRadius - startHeight) > ((outerRadius - innerRadius) * (1 - organicHeightEnd)))
{
float value = random.NextFloat(0, 1);
if (value > floraMaterialSpawnProbability)
{
materialDefinition = m_organicMaterials[random.Next() % m_organicMaterials.Count];
}
else
{
materialDefinition = m_spawningMaterials[random.Next() % m_spawningMaterials.Count];
}
}
}
else
{
if (metalsSpawnValue < metalsSpawnProbability)
{
if ((outerRadius - startHeight) > ((outerRadius - innerRadius) * (1 - metalsHeightEnd)))
{
MyOreProbability probablity = GetOre(random.NextFloat(0, 1));
if (probablity != null)
{
materialLayers[i].EndHeight = materialLayers[i].StartHeight - 1;
materialLayers[i].HeightStartDeviation *= probablity.Probability;
materialLayers[i].HeightEndDeviation *= probablity.Probability;
materialDefinition = m_materialsByOreType[probablity.OreName][random.Next() % m_materialsByOreType[probablity.OreName].Count];
}
}
}
}
materialLayers[i].MaterialDefinition = materialDefinition;
startHeight += layerHeight;
}
return materialLayers;
}
private static MyMaterialLayer CreatePoleLayer(MyRandom random, MyPoleParams poleParams, float startHeight, float outerRadius, ref int layerOffset)
{
if (m_materialsByOreType.ContainsKey("Ice") == false)
{
return null;
}
MyMaterialLayer poleLayer = null;
float poleProbability = random.NextFloat(0, 1);
if (poleParams != null && poleProbability < poleParams.Probability)
{
layerOffset++;
poleLayer = new MyMaterialLayer();
poleLayer.StartHeight = startHeight;
poleLayer.EndHeight = outerRadius;
poleLayer.MaterialDefinition = m_materialsByOreType["Ice"][random.Next() % m_materialsByOreType["Ice"].Count];
poleLayer.HeightEndDeviation = 0;
poleLayer.HeightStartDeviation = 0;
poleLayer.StartAngle = random.NextFloat(poleParams.Angle.Min, poleParams.Angle.Max);
poleLayer.EndAngle = 1.0f;
poleLayer.AngleStartDeviation = random.NextFloat(poleParams.AngleDeviation.Min, poleParams.AngleDeviation.Max);
}
return poleLayer;
}
private static MyCsgShapePlanetHillAttributes FillValues(MyStructureParams input, MyRandom random)
{
MyCsgShapePlanetHillAttributes outputValues = new MyCsgShapePlanetHillAttributes();
outputValues.BlendTreshold = random.NextFloat(input.BlendSize.Min, input.BlendSize.Max);
outputValues.Treshold = random.NextFloat(input.Treshold.Min, input.Treshold.Max);
outputValues.Frequency = random.NextFloat(input.Frequency.Min, input.Frequency.Max);
outputValues.SizeRatio = random.NextFloat(input.SizeRatio.Min, input.SizeRatio.Max);
outputValues.NumNoises = random.Next((int)input.NumNoises.Min, (int)input.NumNoises.Max);
return outputValues;
}
public MyPanCakeFieldDesityFunction(MyRandom random, double frequency)
{
noise = new MySimplexFast(random.Next(), frequency);
}
public MyCsgShapePlanet(MyRandom random, Vector3 translation, ref MyCsgShapePlanetShapeAttributes shapeAttributes, ref MyCsgShapePlanetHillAttributes hillAttributes, ref MyCsgShapePlanetHillAttributes canyonAttributes, float deviationFrequency = 0, float detailFrequency = 0)
{
m_translation = translation;
m_random = random;
m_shapeAttributes = shapeAttributes;
m_hillAttributes = hillAttributes;
m_canyonAttributes = canyonAttributes;
m_canyonBlendTreshold = m_canyonAttributes.Treshold + m_canyonAttributes.BlendTreshold;
m_hillBlendTreshold = m_hillAttributes.Treshold - m_hillAttributes.BlendTreshold;
m_shapeAttributes.Radius = (shapeAttributes.Radius/2.0f) * (1 - shapeAttributes.DeviationScale * m_hillAttributes.SizeRatio);
m_halfDeviation = (shapeAttributes.Radius / 2.0f) * shapeAttributes.DeviationScale;
m_deviationFrequency = deviationFrequency;
m_detailFrequency = detailFrequency;
m_hillHalfDeviation = m_halfDeviation * m_hillAttributes.SizeRatio;
m_canyonHalfDeviation = m_halfDeviation * m_canyonAttributes.SizeRatio;
m_enableModulation = true;
m_hillModule = new MyCompositeNoise(hillAttributes.NumNoises, hillAttributes.Frequency / m_shapeAttributes.Radius, random);
m_canyonModule = new MyCompositeNoise(canyonAttributes.NumNoises, canyonAttributes.Frequency / m_shapeAttributes.Radius, random);
m_normalModule = new MySimplexFast(seed: random.Next(), frequency: shapeAttributes.NormalNoiseFrequency / m_shapeAttributes.Radius);
ComputeDerivedProperties();
}
public MyInfiniteDensityFunction(MyRandom random, double frequency)
{
noise = new MySimplexFast(random.Next(), frequency);
}
