Grid Snapping

SnapToGrid

using UnityEngine;
using System.Collections;

[ExecuteInEditMode]
public class SnapToGrid : MonoBehaviour {

    public float cell_size = 1f; // = larghezza/altezza delle celle
    private float x, y, z;

    void Start() {
        x = 0f;
        y = 0f;
        z = 0f;

    }

    void Update() {
        // comment this out before deploying!
        x = Mathf.Round(transform.position.x / cell_size) * cell_size;
        y = Mathf.Round(transform.position.y / cell_size) * cell_size;
        z = transform.position.z;
        transform.position = new Vector3(x, y, z);
    }

}