fix: Config is utterly broken

core/Config.gd

@@ -13,11 +13,11 @@ var __config : Dictionary
 
 func get_parameter(parameter_key:String, default=null):
 	hydrate_lazily()
-	if parameter_key in self.__config:
+	if self.__config.has(parameter_key):
+#		print("[Config] Reading parameter `%s' from Config." % parameter_key)
 		return self.__config[parameter_key]
 	else:
-#		printerr("[Config] Unknown parameter `%s'." % parameter_key)
+#		print("[Config] Using default value for parameter `%s'." % parameter_key)
-#		assert(false)
 		return default
 
 
@@ -27,7 +27,7 @@ func set_parameter(parameter_key:String, parameter_value) -> void:
 
 
 func hydrate_lazily() -> void:
-	if null == self.__config:
+	if null == self.__config or self.__config.empty():
 		self.__config = load_from_file()
 
 
@@ -48,5 +48,6 @@ func load_from_file() -> Dictionary:
 		printerr("[Config] Cannot read from file `%s'." % self.file_path)
 		return {} # null
 	var data = file.get_var()
+	assert(data is Dictionary)
 	file.close()
 	return data