Separate EventConnection class from Event file

include/EventConnection.h

@@ -0,0 +1,38 @@
+#pragma once
+
+#include <functional>
+#include <Event.h>
+
+template <typename ... Args>
+class Event;
+
+template <typename ... Args>
+class EventConnection {
+private:
+    using delegate = std::function<void(Args...)>;
+public:
+    EventConnection(Event<Args...> *creator, delegate cb);
+    bool Disconnect(); // Breaks the event connection, but does not destroy the instance
+    void Invoke(Args... e);
+private:
+    Event<Args...> * owner;
+    delegate callback;
+    bool active = true;
+};
+
+template<typename... Args>
+EventConnection<Args...>::EventConnection(Event<Args...> *creator, EventConnection::delegate cb) : owner(creator), callback(std::move(cb)) {}
+
+
+template <typename... Args>
+void EventConnection<Args...>::Invoke(Args... e) { callback(e...); }
+
+template <typename ... Args>
+bool EventConnection<Args...>::Disconnect() {
+    if (active) {
+        owner->Disconnect(this);
+        active = false;
+        return true;
+    }
+    return false;
+}