private void EditChunkDataAtPoint(Vector3 point, VoxelBrush brush, VoxelChunk[] voxelChunks)
{
// Find closest voxel to point
var chunk_closestI = 0;
var voxel_closestI = 0;
for (int ci = 0; ci < voxelChunks.Length; ci++)
{
for (int vi = 0; vi < voxelChunks[ci].Voxels.Length; vi++)
{
if (Vector3.Distance(voxelChunks[ci].Voxels[vi].Position + voxelChunks[ci].Position, point) <
Vector3.Distance(voxelChunks[chunk_closestI].Voxels[voxel_closestI].Position + voxelChunks[chunk_closestI].Position, point))
{
voxel_closestI = vi;
chunk_closestI = ci;
}
}
}
// Establish where the voxel is in its chunk
int voxel_Z = System.Math.DivRem(voxel_closestI, (int)Mathf.Pow(VoxelResolution, 2), out int zRem);
int voxel_Y = System.Math.DivRem(zRem, VoxelResolution, out int voxel_X);
// Modify voxels based on active brush
for (int i = 0; i < brush.ValueDirectionPairs.Length; i++)
{
//Get this chunk's x and y indicies
int chunk_editI = chunk_closestI;
int chunk_X = 0;
int chunk_Y = 0;
int chunk_Z = 0;
for (int chunk_i = 0; chunk_i < ChunkCountX * ChunkCountY * ChunkCountZ; chunk_i++)
{
if (chunk_i == chunk_editI)
{
break;
}
chunk_X++;
if (chunk_Y == ChunkCountY)
{
chunk_Z++;
chunk_Y = 0;
}
if (chunk_X == ChunkCountX)
{
chunk_Y++;
chunk_X = 0;
}
}
// Try edit the voxel
bool abort = false;
TryEditVoxelOnAxis(
voxel_X, chunk_X,
brush.ValueDirectionPairs[i].XDir,
dimensionOffset: 1,
out int editXI,
ref chunk_editI,
ref abort);
TryEditVoxelOnAxis(
voxel_Y, chunk_Y,
brush.ValueDirectionPairs[i].YDir,
dimensionOffset: ChunkCountX,
out int editYI,
ref chunk_editI,
ref abort
);
TryEditVoxelOnAxis(
voxel_Z, chunk_Z,
brush.ValueDirectionPairs[i].ZDir,
dimensionOffset: ChunkCountX *ChunkCountY,
out int editZI,
ref chunk_editI,
ref abort
);
if (!abort)
{
voxelChunks[chunk_editI]
.Voxels[editXI + (editYI * VoxelResolution) + (editZI * ((int)Mathf.Pow(VoxelResolution, 2)))]
.Value = brush.ValueDirectionPairs[i].Value;
}
}
}
