C#/Unity 实例化 class 创建具有相同实例 ID 0 的副本

Question

The function below is supposed to create a new instance of SolarSystem_Manager and add it to a list however when var clone = Instantiate(_solar) is run, it returns a nullreference error. All instances of _solar have the same ID when I created multiple and this was 0 and changing the variables of one also changes the variables of the others. Do you know what I am doing wrong?

private void createSolarSystem()
         {
             SolarSystem_Manager _solar = new SolarSystem_Manager();
             _solar.solarSystem = new SolarSystem(transform.GetComponent<Galaxy>(), Random.Range(9, 10), new List<LQPlanetManager>(), new SunManager());
             var clone = Instantiate(_solar);
             solarSystems.Add(clone);
         }

Answer 1

You shouldn't instantiate a Unity object with the new keyword. You should rather make a prefab of SolarSystem_Manager inside the editor and store it inside some variable:

1. Add this to your class:

   [SerializeField] private GameObject _solarSystemManagerPrefab;

2. Inside the editor, create a prefab and drag and drop it into _solarSystemManagerPrefab .

3. Now you can instantiate your prefab like this:

   GameObject clone = Instantiate(_solarSystemManagerPrefab)