#include"Event.h"

template<class... ArgTypes>
ListenerID Event<ArgTypes...>::AddListener(Callback p_callback)
{
	ListenerID listenerID = m_availableListenerID++;
	m_callbacks.emplace(listenerID, p_callback);
	return listenerID;
}

template<class... ArgTypes>
ListenerID Event<ArgTypes...>::operator+=(Callback p_callback)
{
	return AddListener(p_callback);
}

template<class... ArgTypes>
bool Event<ArgTypes...>::RemoveListener(ListenerID p_listenerID)
{
	//£¿£¿£¿£¿
	return m_callbacks.erase(p_listenerID) != 0;
}

template<class... ArgTypes>
bool Event<ArgTypes...>::operator-=(ListenerID p_listenerID)
{
	return RemoveListener(p_listenerID);
}

template<class... ArgTypes>
void Event<ArgTypes...>::RemoveAllListeners()
{
	m_callbacks.clear();
}

template<class... ArgTypes>
uint64_t Event<ArgTypes...>::GetListenerCount()
{
	return m_callbacks.size();
}

template<class... ArgTypes>
void Event<ArgTypes...>::Invoke(ArgTypes... p_args)
{
	//£¡£¡£¡£¡
	for (auto const& [key, value] : m_callbacks)
		value(p_args...);
}