Adding variables (on the front side for now)

front/src/Api/Events/SetVariableEvent.ts

@@ -0,0 +1,18 @@
+import * as tg from "generic-type-guard";
+import {isMenuItemRegisterEvent} from "./ui/MenuItemRegisterEvent";
+
+export const isSetVariableEvent =
+    new tg.IsInterface().withProperties({
+        key: tg.isString,
+        value: tg.isUnknown,
+    }).get();
+/**
+ * A message sent from the iFrame to the game to change the value of the property of the layer
+ */
+export type SetVariableEvent = tg.GuardedType<typeof isSetVariableEvent>;
+
+export const isSetVariableIframeEvent =
+    new tg.IsInterface().withProperties({
+        type: tg.isSingletonString("setVariable"),
+        data: isSetVariableEvent
+    }).get();