Add new API to allow filtering players (ynoproject#47)

* Add new API to allow filtering players

* Fix cache key to compile again

src/cache.cpp

@@ -451,7 +451,7 @@ BitmapRef Cache::SpriteEffect(const BitmapRef& src_bitmap, const Rect& rect, boo
 	auto id = src_bitmap->GetId();
 	// HACK: This might not be unique enough.
 	if (id.empty())
-		id = fmt::format("{}", src_bitmap.get());
+		id = fmt::format("{}", static_cast<const void*>(src_bitmap.get()));
 	const effect_key_type key {
 		id,
 		src_bitmap->GetTransparent(),

src/multiplayer/game_multiplayer.cpp

@@ -229,7 +229,7 @@ void Game_Multiplayer::InitConnection() {
 	});
 	connection.RegisterHandler<ConnectPacket>("c", [this] (ConnectPacket& p) {
 		// I am entering a new room and don't care about players in the old room
-		if (switching_room)
+		if (switching_room || !Web_API::ShouldConnectPlayer(p.uuid))
 			return;
 		if (players.find(p.id) == players.end()) SpawnOtherPlayer(p.id);
 		players[p.id].account = p.account_bin == 1;

src/web_api.cpp

@@ -98,3 +98,9 @@ void Web_API::ShowToastMessage(std::string_view msg, std::string_view icon) {
 	}, msg.data(), msg.size(), icon.data(), icon.size());
 }
 
+bool Web_API::ShouldConnectPlayer(std::string_view uuid) {
+	int result = EM_ASM_INT({
+		return shouldConnectPlayer(UTF8ToString($0, $1)) ? 1 : 0;
+	}, uuid.data(), uuid.size());
+	return result == 1;
+}

src/web_api.h

@@ -23,6 +23,8 @@ namespace Web_API {
 	// msg: localizedMessages.toast.client.*
 	// icon: icon.js
 	void ShowToastMessage(std::string_view msg, std::string_view icon);
+
+	bool ShouldConnectPlayer(std::string_view uuid);
 }
 
 #endif