TimerCallbackSystem.hpp

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#pragma once
#include <functional>
#include <map>
#include <mutex>
 
constexpr float EPSILON = 1e-6f;
 
struct CallBackTimer
{
    float time;   // time in seconds
    float factor; // factor to multiply the delta time with
    std::function<void(float dt)> callback;
};
 
class TimerCallbackSystem
{
public:
    void elapseTime(float dt);
 
    void addTimerCallback(int id, float time, std::function<void(float dt)> callback, float factor = 1.f);
 
    bool forceQuitCallback(int id);
 
    bool finishCallback(int id);
 
private:
    // TODO use a custom data structure with the following properties:
    // 1. Fast iteration
    // 2. Fast removal while iterating
    // 3. Semi fast removal while not iterating
    // 4. Fast insertion to the back of the structure
    std::mutex mutexM;
    std::map<int, CallBackTimer> timersM;
};