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path: root/src/libjin/time/timer.cpp
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#include "../core/configuration.h"
#if defined(jin_time)

#include "timer.h"

namespace JinEngine
{
	namespace Time
	{


		Timer::Timer()
			: mHandlers()
		{
		}

		Timer::~Timer()
		{
			for (int i = 0; i < mHandlers.size(); ++i)
				delete mHandlers[i];
		}

		void Timer::update(float dt)
		{
			// Process handler.
			std::vector<Handler*>::iterator it = mHandlers.begin();
			for (; it != mHandlers.end(); ++it)
				(*it)->process(dt);
			// Erase canceled handler.
			for (it = mHandlers.begin(); it != mHandlers.end();)
			{
				if ((*it)->canceled)
				{
					Handler* h = *it;
					it = mHandlers.erase(it);
					delete h;
				}
				else
					++it;
			}
		}

		void Timer::cancel(Handler* handler)
		{
			if(handler != nullptr)
				handler->canceled = true;
		}

		void Timer::cancelAll()
		{
			for (auto h : mHandlers)
				cancel(h);
		}

		Timer::Handler* Timer::every(float dt, TimerCallback callback, void* p, FinishCallback finish)
		{
			Handler* t = new Handler(Handler::EVERY, dt, 0, callback, p, finish);
			mHandlers.push_back(t);
			return t;
		}

		Timer::Handler* Timer::after(float dt, TimerCallback callback, void* p, FinishCallback finish)
		{
			Handler* t = new Handler(Handler::AFTER, dt, 0, callback, p, finish);
			mHandlers.push_back(t);
			return t;
		}

		Timer::Handler* Timer::repeat(float dt, int count, TimerCallback callback, void* p, FinishCallback finish)
		{
			Handler* t = new Handler(Handler::REPEAT, dt, count, callback, p, finish);
			mHandlers.push_back(t);
			return t;
		}

		Timer::Handler::Handler(Type t, float d, int c, TimerCallback f, void* p, FinishCallback finishcallback)
			: type(t)
			, duration(d)
			, count(c)
			, tickdown(d)
			, countdown(c)
			, callback(f)
			, paramters(p)
			, canceled(false)
			, finishCallback(finishcallback)
		{
		}

		Timer::Handler::~Handler()
		{
			if (finishCallback != nullptr)
				finishCallback(paramters);
		}

		void Timer::Handler::process(float dt)
		{
			tickdown -= dt;
			if (tickdown <= 0)
			{
				tickdown += duration;
				if (!canceled && callback != nullptr)
					callback(paramters);
				if (type == EVERY)
				{
				}
				else if (type == AFTER)
				{
					canceled = true;
				}
				else if (type == REPEAT)
				{
					--countdown;
					if (countdown <= 0)
						canceled = true;
				}
			}
		}

		float deltaTime = 0;

	} // namespace Time
} // namespace JinEngine

#endif // defined(jin_time)