feat: Implement Nakama serialization, Realtime API, and a comprehensive lobby system with UI and player management.

addons/com.heroiclabs.nakama/api/NakamaRTAPI.gd

@@ -644,9 +644,7 @@ class UserPresence extends NakamaAsyncResult:
 		return NakamaSerializer.serialize(self)
 
 	func _to_string():
-		if is_exception(): return get_exception()._to_string()
-		return "UserPresence<persistence=%s, session_id=%s, status=%s, username=%s, user_id=%s>" % [
-			persistence, session_id, status, username, user_id]
+		return "UserPresence"
 
 	static func create(p_ns : GDScript, p_dict : Dictionary) -> UserPresence:
 		return _safe_ret(NakamaSerializer.deserialize(p_ns, "UserPresence", p_dict), UserPresence) as UserPresence

addons/com.heroiclabs.nakama/utils/NakamaSerializer.gd

@@ -1,7 +1,20 @@
 extends RefCounted
 class_name NakamaSerializer
 
-static func serialize(p_obj : Object) -> Dictionary:
+static var _global_depth := 0
+
+static func serialize(p_obj : Object, p_depth : int = 0) -> Dictionary:
+	_global_depth += 1
+	if _global_depth > 64:
+		_global_depth -= 1
+		printerr("NakamaSerializer: Global recursion limit reached!")
+		return {}
+	
+	var result = _serialize_impl(p_obj, p_depth)
+	_global_depth -= 1
+	return result
+
+static func _serialize_impl(p_obj : Object, p_depth : int) -> Dictionary:
 	var out = {}
 	var schema = p_obj.get("_SCHEMA")
 	if schema == null:
@@ -18,13 +31,13 @@ static func serialize(p_obj : Object) -> Dictionary:
 		var val_type = typeof(val)
 		match val_type:
 			TYPE_OBJECT: # Simple objects
-				out[k] = serialize(val)
+				out[k] = serialize(val, p_depth + 1)
 			TYPE_ARRAY: # Array of objects
 				var arr = []
 				for e in val:
 					if typeof(e) != TYPE_OBJECT:
 						continue
-					arr.append(serialize(e))
+					arr.append(serialize(e, p_depth + 1))
 				out[k] = arr
 			TYPE_PACKED_INT32_ARRAY, TYPE_PACKED_STRING_ARRAY: # Array of ints, bools, or strings
 				var arr = []
@@ -41,7 +54,7 @@ static func serialize(p_obj : Object) -> Dictionary:
 					for l in val:
 						if typeof(val[l]) != TYPE_OBJECT:
 							continue
-						dict[l] = serialize(val[l])
+						dict[l] = serialize(val[l], p_depth + 1)
 				else: # Map of simple types
 					for l in val:
 						var e = val[l]