DelayBank.h

template<typename T>
class DelayBank {
public:
	void add(const T &t, float wait_time) {
		waiter_.push_back({t,wait_time});
	}
	void update() {
		using namespace std;
		ended_.clear();
		float time = ofGetLastFrameTime();
		auto remove_begin = remove_if(begin(waiter_), end(waiter_), [time](Waiter &w) {
			return (w.rest_time -= time) <= 0;
		});
		for(auto it = remove_begin; it != end(waiter_); ++it) {
			ended_.push_back(it->t);
		}
		waiter_.erase(remove_begin, end(waiter_));
	}
	std::vector<T>& getEnded() {
		return ended_;
	}
private:
	struct Waiter {
		T t;
		float rest_time;
	};
	std::vector<Waiter> waiter_;
	std::vector<T> ended_;
};