Adding button clicked handling

front/src/Api/Events/ButtonClickedEvent.ts

@@ -0,0 +1,11 @@
+import * as tg from "generic-type-guard";
+
+export const isButtonClickedEvent =
+    new tg.IsInterface().withProperties({
+        popupId: tg.isNumber,
+        buttonId: tg.isNumber,
+    }).get();
+/**
+ * A message sent from the game to the iFrame when a user enters or leaves a zone marked with the "zone" property.
+ */
+export type ButtonClickedEvent = tg.GuardedType<typeof isButtonClickedEvent>;