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#ifndef __JE_TIMER_H__
#define __JE_TIMER_H__
#include "../core/configuration.h"
#if defined(jin_time)
#include <vector>
#include <functional>
#include "SDL2/SDL.h"
#include "../common/object.h"
namespace JinEngine
{
namespace Time
{
///
///
///
class Timer : public Object
{
public:
typedef std::function<void(void*)> TimerCallback;
typedef std::function<void(void*)> FinishCallback;
///
///
///
class Handler : public Object
{
public:
friend class Timer;
enum Type
{
EVERY,
AFTER,
REPEAT,
};
Handler(Type type, float duration, int count = 0, TimerCallback callback = nullptr, void* paramters = nullptr, FinishCallback finishcallback = nullptr);
virtual ~Handler();
void process(float dt);
protected:
int count;
int countdown;
float duration;
float tickdown;
Type type;
TimerCallback callback;
FinishCallback finishCallback;
void* paramters;
bool canceled;
};
///
///
///
Timer();
///
///
///
~Timer();
///
///
///
void update(float dt);
///
///
///
Handler* every(float dt, TimerCallback callback, void* paramters = nullptr, FinishCallback finish = nullptr);
///
///
///
Handler* after(float dt, TimerCallback callback, void* paramters, FinishCallback finish);
///
///
///
Handler* repeat(float dt, int count, TimerCallback callback, void* paramters, FinishCallback finish);
///
///
///
void cancel(Handler* handler);
///
///
///
void cancelAll();
private:
std::vector<Handler*> mHandlers;
};
///
///
///
inline void sleep(int ms)
{
#if jin_time == jin_time_sdl
SDL_Delay(ms);
#endif
}
///
///
///
inline double getSecond()
{
#if jin_time == jin_time_sdl
return SDL_GetTicks() / 1000.f;
#endif
}
///
///
///
inline double getMilliSecond()
{
#if jin_time == jin_time_sdl
return SDL_GetTicks();
#endif
}
///
/// Delta time between frames.
///
extern float deltaTime;
inline void step()
{
static float previous = 0;
static float current = getSecond();
previous = current;
current = getSecond();
deltaTime = current - previous;
}
inline float getDeltaTime()
{
return deltaTime;
}
} // namespace Time
} // namespace JinEngine
#endif // defined(jin_time)
#endif // __JE_TIMER_H__
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