JSON

Unity Engine
1

According to this: Unity - Manual: JSON Serialization

  1. Do I have to place the [Serializable] thingy above the class name? If yes, why?
  2. Say I have an object, character, and I added one character, then as the player progresses more characters are added into the game, how can I add new ones into the Json file without overwriting the current characters?
2

Yes.

Because this attribute combined with the ‘SerializeFieldAttribute’ and ‘NonSerializedAttribute’ is how the serializer determines what should or shouldn’t be serialized.

Don’t serialize the character to the json file, serialize a collection of characters (an array or list).

Usually when serializing, you define some base object to be serialized… I usually call this the ‘SaveStateToken’ or something.

\
[System.Serializable]
public struct SaveStateToken
{

    public Character[] Characters;
    public Item[] Items;
    public int Level;
    public int Score;

}
3

Thank you.
And in case I want to do that the way I asked, how would I be able to do that?