fix: prevent entities from overlapping when arriving at the same cell

Update UpdateMoveSystem to maintain the moveMap as entities move
within a tick. When an entity snaps to a grid cell:
- Block the new cell in the moveMap immediately
- Unblock the old cell

Before snapping, check if the target cell was already claimed by
another entity earlier in the same tick. If so, repath instead of
overlapping.

0 files changed, 0 insertions, 0 deletions