public WatchedVariableFactory(VariableWatcher watcher)
 {
     this.watcher = watcher;
 }
 public WatchedVariable(VariableWatcher watcher)
 {
     this.watcher = watcher;
 }
 void Start()
 {
     cam      = Camera.main;
     varwatch = GameObject.Find("Canvas").GetComponent <VariableWatcher>();
 }