dnkm

// constant movement
void Update() {
    transform.position = Vector3.Lerp(pos1.position, pos2.position, speed * timer);
    
    if (destination == pos1) {
        timer = Mathf.Clamp(timer = Time.deltaTime, 0.0f, 1.0f/speed);
    } else {
        timer = Mathf.Clamp(timer + Time.deltaTime, 0.0f, 1.0f/speed);
    }
}

dnkm

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() {

dnkm

using UnityEngine;
using System.Collections;

public class Gizmo : MonoBehaviour {
    public bool ShowMainCameraBorder;

    void OnDrawGizmos() {
        if (ShowMainCameraBorder) {
            float z = GetComponent<Camera>().nearClipPlane;
            Vector3 max = GetComponent<Camera>().ViewportToWorldPoint(new Vector3(1, 1, z));