public static int GetChunkIndex(Vector3Int chunkPosition, Vector3Int chunkSize, Vector3Int volumeSize)
{
var chunkDimensions = new Vector3Int(
volumeSize.x / chunkSize.x,
volumeSize.y / chunkSize.y,
volumeSize.z / chunkSize.z);
return(VoxelUtility.GetVoxelIndex(chunkPosition, chunkDimensions));
}
public VoxelPhysicsResponse Execute()
{
if (startPosition.y <= 1)
{
return(new VoxelPhysicsResponse());
}
if (startVoxel.IsEmpty)
{
return(new VoxelPhysicsResponse());
}
var volumeSize = voxelsSize;
var directionMask = new VoxelPhysicsDirectionMask();
var closedList = new Hashtable <int>(1024 * 128);
var openList = new VoxelPhysicsHeap(1024 * 128);
var startElement = new VoxelPhysicsHeapElement(startPosition);
openList.Put(startElement);
closedList.Add(startElement.Key);
while (!openList.IsEmpty)
{
var currentElement = openList.Extract();
if (currentElement.Y <= 1)
{
return(new VoxelPhysicsResponse());
}
for (var k = 0; k < 6; k++)
{
var direction = directionMask[k];
var currentElementPosition = currentElement.Position;
var currentDirection = new Vector3Int(
currentElementPosition.x + direction.x,
currentElementPosition.y + direction.y,
currentElementPosition.z + direction.z);
var element = new VoxelPhysicsHeapElement(currentDirection.x, currentDirection.y, currentDirection.z);
var key = element.Key;
var voxelIndex = VoxelUtility.GetVoxelIndex(currentDirection.x, currentDirection.y, currentDirection.z, volumeSize);
var voxel = volumeVoxels[voxelIndex];
if (currentDirection.y >= 0 && currentDirection.y < volumeSize.y &&
currentDirection.x >= 0 && currentDirection.x < volumeSize.x &&
currentDirection.z >= 0 && currentDirection.z < volumeSize.z &&
voxel.IsSolid && !closedList.ContainsKey(key))
{
openList.Put(element);
closedList.Add(element.Key);
}
}
}
var bounds = new VoxelPhysicsBounds(int.MaxValue, int.MinValue);
var voxels = voxelsList;
var voxelsPositions = voxelsDictionary;
var volVoxels = volumeVoxels;
var entries = closedList.Entries;
var entriesCount = entries.Length;
for (var i = 0; i < entriesCount; i++)
{
var entry = entries[i];
if (!entry.IsEmpty)
{
var key = entries[i].key;
var position = VoxelUtility.GetPositionByHash(key);
var index = VoxelUtility.GetVoxelIndex(position, volumeSize);
ref var voxel = ref volVoxels[index];
voxels.Add(new VoxelFallingEntity
{
colorIndex = voxel.colorIndex,
position = new VoxelPosition(key)
});
voxelsPositions.Add(key, 0);
voxel.data = 0;
voxel.colorIndex = 0;
if (bounds.min.x > position.x)
{
bounds.min.x = position.x;
}
if (bounds.max.x < position.x)
{
bounds.max.x = position.x;
}
if (bounds.min.y > position.y)
{
bounds.min.y = position.y;
}
if (bounds.max.y < position.y)
{
bounds.max.y = position.y;
}
if (bounds.min.z > position.z)
{
bounds.min.z = position.z;
}
if (bounds.max.z < position.z)
{
bounds.max.z = position.z;
}
}
}
public VoxelPhysicsResponse Execute(VoxelPhysicsRequest request, VoxelModel model)
{
var volumeSize = model.Size;
var collapseVoxels = new List <VoxelFallingEntity>(512 * 512);
var voxelsDictionary = new Dictionary <int, byte>(1024 * 256);
var position = request.initialPosition;
var bounds = new VoxelPhysicsBounds(int.MaxValue, int.MinValue);
var isDestructed = false;
var voxelIndex = VoxelUtility.GetVoxelIndex(position, volumeSize);
var voxel = model.GetVoxel(voxelIndex);
var pivot = new Vector3();
if (voxel.IsEmpty)
{
var directionMask = new VoxelPhysicsDirectionMask(VoxelPhysicsDirectionMaskPriorityType.TopYPriority);
for (var v = 0; v < 6; v++)
{
var direction = directionMask[v];
var currentPosition = new Vector3Int(
position.x + direction.x,
position.y + direction.y,
position.z + direction.z);
voxelIndex = VoxelUtility.GetVoxelIndex(currentPosition, volumeSize);
voxel = model.GetVoxel(voxelIndex);
if (voxel.IsSolid)
{
var workerRequest = new VoxelPhysicsWorkerData
{
startVoxel = voxel,
initialPosition = currentPosition,
collapseVoxels = collapseVoxels,
voxelsDictionary = voxelsDictionary
};
var result = _worker.Execute(workerRequest, model);
if (result.isDestroyed)
{
for (var i = 0; i < 3; i++)
{
if (bounds.min[i] > result.fallingVoxelBounds.min[i])
{
bounds.min[i] = result.fallingVoxelBounds.min[i];
}
if (bounds.max[i] < result.fallingVoxelBounds.max[i])
{
bounds.max[i] = result.fallingVoxelBounds.max[i];
}
}
isDestructed = true;
}
}
}
}
var voxelsDictionaryCount = voxelsDictionary.Count;
pivot.x = pivot.x / voxelsDictionaryCount + 0.5F;
pivot.y = pivot.y / voxelsDictionaryCount + 0.5F;
pivot.z = pivot.z / voxelsDictionaryCount + 0.5F;
return(new VoxelPhysicsResponse
{
isDestroyed = isDestructed,
fallingVoxelList = collapseVoxels,
fallingVoxelDictionary = voxelsDictionary,
fallingVoxelBounds = bounds,
});
}
public VoxelEntity GetVoxel(Vector3Int position)
{
var index = VoxelUtility.GetVoxelIndex(position.x, position.y, position.z, Size);
return(Voxels[index]);
}
public VoxelEntity GetVoxel(int x, int y, int z)
{
var index = VoxelUtility.GetVoxelIndex(x, y, z, Size);
return(Voxels[index]);
}
public void SetVoxel(Vector3Int position, VoxelEntity voxelEntity)
{
var index = VoxelUtility.GetVoxelIndex(position, Size);
Voxels[index] = voxelEntity;
}
public void SetVoxel(int x, int y, int z, VoxelEntity voxelEntity)
{
var index = VoxelUtility.GetVoxelIndex(x, y, z, Size);
Voxels[index] = voxelEntity;
}