Added settings for volume and mouse mode

Global.gd

@@ -13,14 +13,39 @@ var highscore : int = 0 :
 		EventBus.update_highscore.emit(highscore)
 		_save()
 
+var relative_mouse : bool = true :
+	set(x):
+		relative_mouse = x
+		_save()
+
+var volume : int :
+	set(x):
+		volume = x
+		AudioServer.set_bus_volume_db(0, volume)
+		_save()
+
+var _loading : bool = false
+
 func _ready() -> void:
+	_loading = true
 	if FileAccess.file_exists("user://data.json"):
 		var data = JSON.parse_string(FileAccess.get_file_as_string("user://data.json"))
 		highscore = data.get("highscore", 0)
+		relative_mouse = data.get("relative_mouse", true)
+		volume = data.get("volume", AudioServer.get_bus_volume_db(0))
+	else:
+		highscore = 0
+		relative_mouse = true
+		volume = AudioServer.get_bus_volume_db(0)	
+	_loading = false
 
 func _save() -> void:
+	if _loading:
+		return
 	var data : Dictionary = {
-		"highscore": highscore
+		"highscore": highscore,
+		"relative_mouse": relative_mouse,
+		"volume": volume
 	}
 	var f = FileAccess.open("user://data.json", FileAccess.WRITE)
 	f.store_string(JSON.stringify(data))