public void Voronoi(MatrixWorld matrix, Noise random, StopToken stop = null)
{
Vector3 matrixPos = matrix.worldPos;
Vector3 matrixSize = matrix.worldSize;
CoordRect rect = CoordRect.WorldToGridRect(ref matrixPos, ref matrixSize, cellSize);
rect.offset -= 1; rect.size += 2; //leaving 1-cell margins
matrixPos.x -= cellSize; matrixPos.z -= cellSize;
matrixSize.x += cellSize * 2; matrixSize.z += cellSize * 2;
PositionMatrix posMatrix = new PositionMatrix(rect, matrixPos, matrixSize);
posMatrix.Scatter(uniformity, random);
posMatrix = posMatrix.Relaxed();
float relativeIntensity = intensity * (matrix.worldSize.x / cellSize) * 0.05f;
Coord min = matrix.rect.Min; Coord max = matrix.rect.Max;
for (int x = min.x; x < max.x; x++)
{
if (stop != null && stop.stop)
{
return; //checking stop every x line
}
for (int z = min.z; z < max.z; z++)
{
//Vector3 worldPos = matrix.PixelToWorld(x,z);
Vector2D relativePos = new Vector2D(
(float)(x - matrix.rect.offset.x) / (matrix.rect.size.x - 1),
(float)(z - matrix.rect.offset.z) / (matrix.rect.size.z - 1));
Vector2D worldPos = new Vector2D(
relativePos.x * matrix.worldSize.x + matrix.worldPos.x,
relativePos.z * matrix.worldSize.z + matrix.worldPos.z);
Vector3 closest; Vector3 secondClosest;
float minDist; float secondMinDist;
posMatrix.GetTwoClosest((Vector3)worldPos, out closest, out secondClosest, out minDist, out secondMinDist);
float val = 0;
switch (blendType)
{
case BlendType.flat: val = closest.y; break;
case BlendType.closest: val = minDist / (matrix.worldSize.x * 16); break; //(MapMagic.instance.resolution*16); //TODO: why 16?
case BlendType.secondClosest: val = secondMinDist / (matrix.worldSize.x * 16); break;
case BlendType.cellular: val = (secondMinDist - minDist) / (matrix.worldSize.x * 16); break;
case BlendType.organic: val = (secondMinDist + minDist) / 2 / (matrix.worldSize.x * 16); break;
}
matrix[x, z] += val * relativeIntensity;
}
}
}
public object Read(CoordRect worldRect, float worldHeight, CoordRect pixelRect)
{
Vector3 worldPos = worldRect.offset.vector3;
Vector3 worldSize = worldRect.size.vector3;
CoordRect rect = CoordRect.WorldToGridRect(ref worldPos, ref worldSize, (int)Mathf.Sqrt(count));
Noise random = new Noise(seed, permutationCount: 65536);
PositionMatrix posMatrix = new PositionMatrix(rect, worldPos, worldSize);
posMatrix.Scatter(uniformity, random);
posMatrix = posMatrix.Relaxed(relax);
return(posMatrix.ToTransitionsList());
}