#include "Animation.hpp"

void Animation::play(float delay, bool play_once)
{
    this->delay = delay;
    playing = true;
    paused = false;
    previous_step_time = timer.elapsed;
    overflow = 0;
    count = 0;
    ending = play_once;
    if (delay <= 0)
    {
        timer.toggle(true);
    }
}

void Animation::set_frame_length(float length)
{
    frame_length = length;
}

void Animation::play_once(float delay)
{
    play(delay, true);
}

void Animation::pause()
{
    timer.toggle(false);
    paused = true;
}

void Animation::unpause()
{
    timer.toggle(true);
    paused = false;
}

void Animation::reset()
{
    timer.toggle(false);
    playing = false;
    timer.reset();
}

bool Animation::is_playing(bool include_delay)
{
    return playing && !paused && (include_delay || delay <= 0);
}

void Animation::update()
{
    timer.update();
    if (playing && !paused && containing_object->is_active())
    {
        if (delay > 0)
        {
            delay -= timer.frame_duration;
            if (delay <= 0)
            {
                timer.toggle(true);
            }
        }
        if (delay <= 0)
        {
            if (timer.elapsed - previous_step_time + overflow > frame_length)
            {
                overflow = timer.elapsed - previous_step_time + overflow - frame_length;
                previous_step_time = timer.elapsed;
                step();
                count++;
                if (ending)
                {
                    reset();
                }
                if (overflow > frame_length)
                {
                    overflow = 0;
                }
            }
        }
    }
}