/// <summary>
/// takes in a by-voxel data array. returns another array of the same format with the diffused results.
/// may modify the values in the input array. may return the input array. will handle disposing the input
/// array if not returned.
/// </summary>
public static void ComputeDiffusion(
VolumetricWorldVoxelLayout voxelLayout,
DoubleBuffered <float> layerData,
NativeArray <float> diffusionConstantMultipliers,
float minimumDiffusionConstantMultiplier,
float deltaTime,
float diffusionConstant,
ref JobHandleWrapper dependecy)
{
var combinedDiffusionFactor = deltaTime * diffusionConstant;
if (combinedDiffusionFactor >= 1f / 6)
{
throw new System.ArgumentException("diffusion factor cannot exceed the connectivity of each node");
}
var adjacencyVectors = new NativeArray <Vector3Int>(new[]
{
new Vector3Int(1, 0, 0),
new Vector3Int(-1, 0, 0),
new Vector3Int(0, 1, 0),
new Vector3Int(0, -1, 0),
new Vector3Int(0, 0, 1),
new Vector3Int(0, 0, -1),
}, Allocator.TempJob);
var diffuseJob = new VoxelAdjacencyResourceConservingBoundaryComputeJob
{
sourceDiffusionValues = layerData.CurrentData,
targetDiffusionValues = layerData.NextData,
diffusionConstantAdjusters = diffusionConstantMultipliers,
minimumDiffusionConstantMultiplier = minimumDiffusionConstantMultiplier,
maximumDiffsuionConstant = 1 / 7f,
adjacencyVectors = adjacencyVectors,
voxelLayout = voxelLayout,
diffusionConstant = combinedDiffusionFactor
};
dependecy = diffuseJob.Schedule(layerData.CurrentData.Length, 1000, dependecy);
layerData.Swap();
adjacencyVectors.Dispose(dependecy);
}
public override void Update(GameTime gameTime)
{
if (processDuringPause || Environment?.IsPaused == false)
{
foreach (var @object in objects.Current)
{
@object.Update(gameTime);
if (@object.IsAlive)
{
objects.Other.Add(@object);
}
}
objects.Current.Clear();
objects.Swap();
}
}
