public virtual void Generate(int worldSeed)
{
int chunkSeed = Generator.GetPerIslandSeed(this);
creatingChunkStopwatch = System.Diagnostics.Stopwatch.StartNew();
random = new Random(chunkSeed);
elevations = new List <float>();
islandColors = new List <Color>();
CreatingPoolTask = delegate {
PoissonDiscSampler sampler = new PoissonDiscSampler(Size, Size, minPointRadius);
Polygon polygon = new Polygon();
//Add uniformly-spaced points
foreach (Vector2 sample in sampler.Samples(chunkSeed))
{
polygon.Add(new Vertex((double)sample.x, (double)sample.y));
}
//add points at corners so chunk will be always square shaped
polygon.Add(new Vertex(0, 0));
polygon.Add(new Vertex(0, Size));
polygon.Add(new Vertex(Size, 0));
polygon.Add(new Vertex(Size, Size));
//Add some randomly sampled points
for (int i = 0; i < randomPoints - 4; i++)
{
polygon.Add(new Vertex(random.Range(0.0f, Size), random.Range(0.0f, Size)));
}
TriangleNet.Meshing.ConstraintOptions options = new TriangleNet.Meshing.ConstraintOptions()
{
ConformingDelaunay = true
};
mesh = (TriangleNet.Mesh)polygon.Triangulate(options);
// Sample perlin noise to get elevations
foreach (Vertex vert in mesh.Vertices)
{
float height = Generator.GetTerrainHeight((float)vert.x, (float)vert.y, this);
Color color = Generator.GetTerrainColor((float)vert.x, (float)vert.y, height, this);
elevations.Add(height);
islandColors.Add(color);
}
CreateMeshRequest = true;
//let this be always the last piece of code here
try {
bin = new TriangleBin(mesh, Size, Size, minPointRadius * 2.0f);
} catch (Exception e) {
Debug.Log("triangulation failed!");
}
};
CustomThreadPool.AddTask(CreatingPoolTask);
}
public virtual void Generate()
{
UnityEngine.Random.InitState(0);
elevations = new List <float>();
float[] seed = new float[octaves];
for (int i = 0; i < octaves; i++)
{
seed[i] = Random.Range(0.0f, 100.0f);
}
PoissonDiscSampler sampler = new PoissonDiscSampler(xsize, ysize, minPointRadius);
Polygon polygon = new Polygon();
// Add uniformly-spaced points
foreach (Vector2 sample in sampler.Samples())
{
polygon.Add(new Vertex((double)sample.x, (double)sample.y));
}
// Add some randomly sampled points
for (int i = 0; i < randomPoints; i++)
{
polygon.Add(new Vertex(Random.Range(0.0f, xsize), Random.Range(0.0f, ysize)));
}
TriangleNet.Meshing.ConstraintOptions options = new TriangleNet.Meshing.ConstraintOptions()
{
ConformingDelaunay = true
};
mesh = (TriangleNet.Mesh)polygon.Triangulate(options);
bin = new TriangleBin(mesh, xsize, ysize, minPointRadius * 2.0f);
// Sample perlin noise to get elevations
foreach (Vertex vert in mesh.Vertices)
{
float elevation = 0.0f;
float amplitude = Mathf.Pow(persistence, octaves);
float frequency = 1.0f;
float maxVal = 0.0f;
for (int o = 0; o < octaves; o++)
{
float sample = (Mathf.PerlinNoise(seed[o] + (float)vert.x * sampleSize / (float)xsize * frequency,
seed[o] + (float)vert.y * sampleSize / (float)ysize * frequency) - 0.5f) * amplitude;
elevation += sample;
maxVal += amplitude;
amplitude /= persistence;
frequency *= frequencyBase;
}
elevation = elevation / maxVal;
elevations.Add(elevation * elevationScale);
}
MakeMesh();
ScatterDetailMeshes();
}
