Connections and disconnections are working across different clients

common/utility.hpp

@@ -32,4 +32,17 @@ std::string to_string_custom(int i);
 
 int to_integer_custom(std::string);
 
+//wow
+template<typename ContainerT, typename PredicateT>
+void erase_if(ContainerT& items, const PredicateT& predicate) {
+	for(auto it = items.begin(); it != items.end(); /* empty */) {
+		if(predicate(*it)) {
+			it = items.erase(it);
+		}
+		else {
+			++it;
+		}
+	}
+};
+
 #endif