public int RegisterMesh(ref ChiselMesh mesh)
{
var meshHash = mesh.GetHash();
if (!chiselMeshHashes.TryGetValue(meshHash, out int2 indexUsageCount))
{
if (emptyChiselMeshIndices.Length == 0)
{
chiselMeshHashes[meshHash] = new int2(chiselMeshes.Length, 1);
chiselMeshes.Add(mesh);
}
else
{
var lastIndex = emptyChiselMeshIndices[emptyChiselMeshIndices.Length - 1];
emptyChiselMeshIndices.ResizeUninitialized(emptyChiselMeshIndices.Length - 1);
chiselMeshHashes[meshHash] = new int2(lastIndex, 1);
chiselMeshes[lastIndex] = mesh;
}
}
else
{
indexUsageCount.y++;
chiselMeshHashes[meshHash] = indexUsageCount;
}
return(indexUsageCount.x);
}
public void UnregisterMesh(ref ChiselMesh mesh)
{
var meshHash = mesh.GetHash();
if (!chiselMeshHashes.TryGetValue(meshHash, out int2 indexUsageCount))
{
throw new ArgumentOutOfRangeException($"Cannot unregister mesh because it's not registered");
}
indexUsageCount.y--;
if (indexUsageCount.y > 0)
{
chiselMeshHashes[meshHash] = indexUsageCount;
return;
}
chiselMeshes[indexUsageCount.x] = default;
emptyChiselMeshIndices.Add(indexUsageCount.x);
chiselMeshHashes.Remove(meshHash);
}