fix EventManager memory leak

2 files changed, 7 insertions, 2 deletions

diff --git a/src/crepe/manager/EventManager.h b/src/crepe/manager/EventManager.h
index 639e37f..930d950 100644
--- a/src/crepe/manager/EventManager.h
+++ b/src/crepe/manager/EventManager.h
@@ -106,7 +106,7 @@ private:
 	 * \brief Represents an entry in the event queue.
 	 */
 	struct QueueEntry {
-		std::unique_ptr<Event> event; ///< The event instance.
+		std::unique_ptr<Event, std::function<void(Event*)>> event; ///< The event instance.
 		event_channel_t channel = CHANNEL_ALL; ///< The channel associated with the event.
 		std::type_index type; ///< The type of the event.
 	};
diff --git a/src/crepe/manager/EventManager.hpp b/src/crepe/manager/EventManager.hpp
index a5f4556..b2090d0 100644
--- a/src/crepe/manager/EventManager.hpp
+++ b/src/crepe/manager/EventManager.hpp
@@ -22,7 +22,12 @@ void EventManager::queue_event(const EventType & event, event_channel_t channel)
 	static_assert(std::is_base_of<Event, EventType>::value,
 				  "EventType must derive from Event");
 	this->events_queue.push_back(QueueEntry{
-		.event = std::make_unique<EventType>(event),
+		// unique_ptr w/ custom destructor implementation is used because the base Event interface
+		// can't be polymorphic (= have default virtual destructor)
+		.event = {
+			new EventType(event),
+			[](Event * ev) { delete static_cast<EventType *>(ev); },
+		},
 		.channel = channel,
 		.type = typeid(EventType),
 	});