X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fgame%2Feventbus.h;h=a4de18f2bb24c699fb73aea61794b73578cdba77;hb=fce6e7846814e54de9d38000d2f5e2295ee2119e;hp=7da047ed1851b76b8bd79b6d903aa8b20c64b47e;hpb=db01a6ed506ea2352b20f10b2694e249d2bba6c5;p=libs%2Fgame.git

diff --git a/source/game/eventbus.h b/source/game/eventbus.h
index 7da047e..a4de18f 100644
--- a/source/game/eventbus.h
+++ b/source/game/eventbus.h
@@ -26,6 +26,7 @@ struct EventDispatcher
 	{ std::erase_if(handlers, [obs](auto &h){ return h.observer==obs; }); }
 
 	void dispatch(const T &) const;
+	void dispatch_to(EventObserver &, const T &) const;
 };
 
 
@@ -64,6 +65,9 @@ public:
 
 	template<typename T>
 	void dispatch(const T &) const;
+
+	template<typename T>
+	void dispatch_to(EventObserver &, const T &) const;
 };
 
 
@@ -74,6 +78,14 @@ void EventDispatcher<T>::dispatch(const T &event) const
 		h.callback(event);
 }
 
+template<typename T>
+void EventDispatcher<T>::dispatch_to(EventObserver &obs, const T &event) const
+{
+	for(const Handler &h: handlers)
+		if(h.observer==&obs)
+			h.callback(event);
+}
+
 
 template<typename T>
 inline unsigned EventBus::get_event_id()
@@ -108,6 +120,14 @@ inline void EventBus::dispatch(const T &event) const
 		static_cast<EventDispatcher<T> *>(dispatchers[id].dispatcher)->dispatch(event);
 }
 
+template<typename T>
+inline void EventBus::dispatch_to(EventObserver &obs, const T &event) const
+{
+	unsigned id = get_event_id<T>();
+	if(id<dispatchers.size() && dispatchers[id].dispatcher)
+		static_cast<EventDispatcher<T> *>(dispatchers[id].dispatcher)->dispatch_to(obs, event);
+}
+
 } // namespace Msp::Game
 
 #endif