public Var <T> SetupVar <T>(string fragment, T val, Action <IVar> watcher)
{
string key = GetSubKey(fragment);
Var <T> v = Obj.Vars.AddVar <T>(key, val);
if (v != null)
{
if (watcher != null && v.AddVarWatcher(this, watcher) == null)
{
Error("Add Watcher Failed: {0} -> {1}, {2}", this, typeof(T).FullName, fragment);
}
}
return(v);
}