+
+ /**
+ * Activates the SpriteChange's stay action, if applicable
+ */
+ void set_stay_action();
+
+ /**
+ * Deactivates the SpriteChange's stay action, if applicable
+ */
+ void clear_stay_action();
+
+private:
+ /**
+ * should the stayaction be displayed
+ */
+ bool in_stay_action;
+
+ static std::list<SpriteChange*> all_sprite_changes;
+