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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)