Андрей Яковенко

using UnityEngine;
using UnityEditor;
using System.Collections;
 
public class SnapToGrid : ScriptableObject {
 
	[MenuItem ("Window/Snap to Grid %g")]
	static void MenuSnapToGrid() {
		foreach (Transform t in Selection.GetTransforms(SelectionMode.TopLevel | SelectionMode.OnlyUserModifiable)) {
			t.position = new Vector3 (
				Mathf.Round(t.position.x / EditorPrefs.GetFloat("MoveSnapX")) * EditorPrefs.GetFloat("MoveSnapX"),
				Mathf.Round(t.position.y / EditorPrefs.GetFloat("MoveSnapY")) * EditorPrefs.GetFloat("MoveSnapY"),
				Mathf.Round(t.position.z / EditorPrefs.GetFloat("MoveSnapZ")) * EditorPrefs.GetFloat("MoveSnapZ")
			);
		}
	}
 
}