feat: custom event

lib/EventAPI-JS.js

@@ -0,0 +1,29 @@
+const CallEvent = ll.import("GMLIB_API", "callCustomEvent");
+
+let NextEventId = 0;
+
+function getNextEventId() {
+    NextEventId++;
+    return "GMLIB_Event_" + NextEventId;
+}
+
+class Event {
+    constructor() {
+        throw new Error("Static class cannot be instantiated");
+    }
+
+    static listen(event, callback) {
+        let eventId = getNextEventId();
+        ll.export(callback, event, eventId);
+        let result = CallEvent(event, eventId);
+        if (!result) {
+            logger.error(`Cannot listen event "${event}"!`);
+            logger.error(`Event "${event}" No Found!`);
+        }
+        return result;
+    }
+}
+
+module.exports = {
+    Event
+};