public override IEnumerable <IRenderable> GetCustomVisualizers(IVoxelHandle handle)
        {
            foreach (var e in base.GetCustomVisualizers(handle))
            {
                yield return(e);
            }

            yield return(new EntityVisualizer(e =>
            {
                e.Mesh = UtilityMeshes.CreateBoxColored(new Color4(0, 0, 1), new Vector3(1));
                var miner = ((IVoxel)handle).GetPart <Miner>();
                var targetVoxel = miner.TargetOreVoxel;
                e.Visible = targetVoxel != null;
                if (targetVoxel == null)
                {
                    return;
                }

                var progress = miner.OreMiningProgress;
                var factor = progress < 0.5f ? progress * 2 : 1 - (progress - 0.5f) * 2;
                var toOre = handle.GetOffset(targetVoxel);
                var offset = (toOre.ToVector2() * factor).ToXZ();

                e.WorldMatrix = Matrix.Translation(((GameVoxel)handle).GetBoundingBox().GetCenter() + offset * 10);
            }));
        }