other JSON

When?

The module is the fallback serializer when you do not (want to) use LibGDX. For GWT/browser support use the libgdx-json module.

It has no extra benefit over the LibGDX serializer, and lacks serializers for libgdx classes.

How to

Configure project for (de)serialization

1. Include artemis-odb-serializer-json module in your gradle/maven configuration.
2. Add the required manager and configure a backend:

     final WorldSerializationManager manager = WorldSerializationManager();
     World world = new World(new WorldConfiguration().setSystem(manager));
     manager.setSerializer(new JsonArtemisSerializer(world))

Load from file

     final InputStream is = AnyClass.class.getResourceAsStream("level.json");
     manager.load(is, SaveFileFormat.class);

Save to string

     final StringWriter writer = new StringWriter();
     manager.save(writer, new SaveFileFormat(entities));
     String json = writer.toString();

entities is an IntBag with entity IDs defining the scope of the save operation.

Save to file

     final PrintWriter writer = new PrintWriter("level.json", "UTF-8");
     manager.save(writer, new SaveFileFormat(entities));
     writer.close();