diff --git a/BigBaseV2/src/util/session.hpp b/BigBaseV2/src/util/session.hpp
new file mode 100644
index 00000000..25ea4338
--- /dev/null
+++ b/BigBaseV2/src/util/session.hpp
@@ -0,0 +1,19 @@
+#pragma once
+#include "core/data/session_types.hpp"
+#include "script_global.hpp"
+#include "script.hpp"
+
+namespace big::session
+{
+	void join_type(SessionType session)
+	{
+		if (session.id == eSessionType::LEAVE_ONLINE)
+			*script_global(1312443).at(2).as<int*>() = -1;
+		else
+			*script_global(1312860).as<int*>() = (int)session.id;
+
+		*script_global(1312443).as<int*>() = 1;
+		script::get_current()->yield(200ms);
+		*script_global(1312443).as<int*>() = 0;
+	}
+}
\ No newline at end of file