Can the magnetic mode be realized?

[MineYuanlu]

I have an idea that when I drag an element, it can be "adsorbed" when it is close to another element.
I try to judge whether the distance is less than the fixed value on the onDrag, set the grid and position when approaching, and cancel the grid when leaving. But I failed. Setting the position seems to have no effect. I don't know why. At the same time, the grid doesn't seem to be perfectly aligned
@neodrag/svelte: 2.0.3