var player = GameObject.Find("Player");

        // Rotation de la caméra quand la touche alt est enfoncé
        if (Input.GetKey(KeyCode.LeftAlt)){
            print("alt down");
            transform.Rotate(0, Input.GetAxisRaw("Mouse X"), 0);
        }else if (Input.GetKeyUp(KeyCode.LeftAlt)){ // Reset de la rotation
            print("alt up");
            print(player.transform.rotation);
            transform.Rotate(player.transform.rotation);

        }