[Unity] Auto snap to 2D grid

AutoSnapToGrid2D.cs

using UnityEngine;
using System.Collections;

[ExecuteInEditMode]
public class AutoSnapToGrid2D : MonoBehaviour 
{
	public Vector2 gridSize = new Vector2(0.32f, 0.32f);
	
	void Update()
	{
		Vector3 localPos = transform.localPosition;
		localPos.x = Mathf.Round(localPos.x / gridSize.x) * gridSize.x;
		localPos.y = Mathf.Round(localPos.y / gridSize.y) * gridSize.y;
		transform.localPosition = localPos;
	}
}