lua/defaults: add user_data helpers

player/lua/defaults.lua

@@ -831,4 +831,23 @@ function mp_utils.shared_script_property_observe(name, cb)
     end)
 end
 
+function mp_utils.user_data_set(path, value)
+    return mp.set_property_native("user-data/" .. path, value)
+end
+
+function mp_utils.user_data_get(path)
+    return mp.get_property_native("user-data/" .. path)
+end
+
+function mp_utils.user_data_del(path)
+    return mp.del_property_native("user-data/" .. path)
+end
+
+-- cb(name, value) on change and on init
+function mp_utils.user_data_observe(path, t, cb)
+    return mp.observe_property("user-data/" .. path, t, function(_, val)
+        cb(path, val)
+    end)
+end
+
 return {}