/* ✨      +------------------------------------------------------+
  ____/  \____ ✨/|  Open source game framework licensed to freely use,  |
✨\          /  / |  copy, and modify. Created for 🌠dank.game🌠         |
+--\   .  . /--+  |                                                      |
| ~/    ︶  \👍|  |  🌐 https://open.shampoo.ooo/shampoo/spacebox        |
| ~~~🌊~~~~🌊~ |  +------------------------------------------------------+
| SPACE 🪐🅱 OX | /
| 🌊 ~ ~~~~ ~~ |/
+-------------*/

#include "Animation.hpp"

Animation::Animation()
{
    timer.off();
}

void Animation::play(float delay, bool play_once)
{
    this->delay = delay;
    play_state = true;
    unpause();
    previous_step_time = timer.elapsed();
    overflow = 0;
    ending = play_once;
    if (delay <= 0)
    {
        timer.on();
    }
}

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

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

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

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

void Animation::toggle(bool state)
{
    state ? unpause() : pause();
}

void Animation::reset()
{
    timer.off();
    play_state = false;
    timer.reset();
}

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

bool Animation::update(float timestamp)
{
    timer.update(timestamp);
    if (playing())
    {
        if (delay > 0)
        {
            delay -= timer.frame();
            if (delay <= 0)
            {
                timer.on();
            }
        }
        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();
                if (ending)
                {
                    reset();
                }
                step();
                if (overflow > _frame_length)
                {
                    overflow = 0;
                }
                return true;
            } } }
    return false;
}