local def = core.get_item_def(item:get_name())
local ray = core.raycast(pos, pos2, true, core.settings:get_bool("point_liquids") or def and def.liquids_pointable)
return ray and ray:next()
-end
+end
+
+function core.close_formspec(formname)
+ return core.show_formspec(formname, "")
+end