-#ifdef INTERFACE
-CLASS(XonoticSlider) EXTENDS(Slider)
- METHOD(XonoticSlider, configureXonoticSlider, void(entity, float, float, float, string))
- METHOD(XonoticSlider, setValue, void(entity, float))
+#ifndef SLIDER_H
+#define SLIDER_H
+#include "../item/slider.qc"
+CLASS(XonoticSlider, Slider)
+ METHOD(XonoticSlider, configureXonoticSlider, void(entity, float, float, float, string));
+ METHOD(XonoticSlider, setValue, void(entity, float));