Rooms, items and some player stuff

src/framework/world/event-bus.js

@@ -0,0 +1,30 @@
+export class EventBus {
+    constructor() {
+        this.events = new Map();
+    }
+    emit(id, data) {
+        let ev = this.events.get(id);
+        if (!ev) {
+            let ev = new EventItem(id);
+            this.events.set(id, ev);
+            return;
+        }
+        ev.subscribers.forEach((subscriber) => {
+            subscriber(data);
+        });
+    }
+    subscribe(id, subscriber) {
+        let ev = this.events.get(id);
+        if (!ev) {
+            ev = new EventItem(id);
+            this.events.set(id, ev);
+        }
+        ev.subscribers.push(subscriber);
+    }
+}
+export class EventItem {
+    constructor(id) {
+        this.id = id;
+        this.subscribers = [];
+    }
+}