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#pragma once
#include "event.h"
#include "eventHandler.h"
#include "keyCodes.h"
#include <memory>
#include <unordered_map>
#include <vector>
// using EventType = std::uint32_t;
// using EventId = std::uint64_t;
class EventManager {
public:
EventManager(const EventManager &) = delete;
const EventManager & operator=(const EventManager &) = delete;
static EventManager & getInstance() {
static EventManager instance;
return instance;
}
void shutdown();
void subscribe(int eventType,
std::unique_ptr<IEventHandlerWrapper> && handler,
int eventId);
void unsubscribe(int eventType, const std::string & handlerName,
int eventId);
void triggerEvent(const Event & event_, int eventId);
void queueEvent(std::unique_ptr<Event> && event_, int eventId);
void dispatchEvents();
private:
EventManager() = default;
std::vector<std::pair<std::unique_ptr<Event>, int>> m_eventsQueue;
std::unordered_map<int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>
m_subscribers;
std::unordered_map<
int, std::unordered_map<
int, std::vector<std::unique_ptr<IEventHandlerWrapper>>>>
m_subscribersByEventId;
};
template <typename EventType>
inline void subscribe(const EventHandler<EventType> & callback, int eventId = 0,
const bool unsubscribeOnSuccess = false) {
std::unique_ptr<IEventHandlerWrapper> handler
= std::make_unique<EventHandlerWrapper<EventType>>(
callback, unsubscribeOnSuccess);
EventManager::getInstance().subscribe(EventType::getStaticEventType(),
std::move(handler), eventId);
}
template <typename EventType>
inline void unsubscribe(const EventHandler<EventType> & callback,
int eventId = 0) {
const std::string handlerName = callback.target_type().name();
EventManager::getInstance().unsubscribe(EventType::getStaticEventType(),
handlerName, eventId);
}
inline void triggerEvent(const Event & triggeredEvent, int eventId = 0) {
EventManager::getInstance().triggerEvent(triggeredEvent, eventId);
}
inline void queueEvent(std::unique_ptr<Event> && queuedEvent, int eventId = 0) {
EventManager::getInstance().queueEvent(
std::forward<std::unique_ptr<Event>>(queuedEvent), eventId);
}
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