1 files changed, 43 insertions, 0 deletions
diff --git a/src/crepe/manager/EventManager.hpp b/src/crepe/manager/EventManager.hpp
new file mode 100644
index 0000000..1f44943
--- /dev/null
+++ b/src/crepe/manager/EventManager.hpp
@@ -0,0 +1,43 @@
+#pragma once
+
+#include "EventManager.h"
+
+namespace crepe {
+
+template <typename EventType>
+subscription_t
+EventManager::subscribe(const EventHandler<EventType> & callback, event_channel_t channel) {
+	subscription_counter++;
+	std::type_index event_type = typeid(EventType);
+	std::unique_ptr<EventHandlerWrapper<EventType>> handler
+		= std::make_unique<EventHandlerWrapper<EventType>>(callback);
+	std::vector<CallbackEntry> & handlers = this->subscribers[event_type];
+	handlers.emplace_back(CallbackEntry {
+		.callback = std::move(handler), .channel = channel, .id = subscription_counter
+	});
+	return subscription_counter;
+}
+
+template <typename EventType>
+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{
+		// 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),
+	});
+}
+
+template <typename EventType>
+void EventManager::trigger_event(const EventType & event, event_channel_t channel) {
+	this->handle_event(typeid(EventType), channel, event);
+}
+
+} // namespace crepe