Program Listing for File animationtimer.cpp

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/*
 * AnimationTimer - Class for managing time-sensitive actions for Animations.
 */

#include "animationtimer.h"
#include <math.h>

namespace PixelMaestro {
    AnimationTimer::AnimationTimer(const Animation& animation) : animation_(animation) { }

    uint16_t AnimationTimer::get_delay() const {
        return delay_;
    }

    uint8_t AnimationTimer::get_step_count() const {
        return step_count_;
    }

    void AnimationTimer::recalculate_step_count() {
        /*
         * If fading, calculate the distance in steps between the current cycle and the next cycle.
         * Otherwise, just jump to the next cycle.
         */
        if (animation_.get_fade()) {
            step_count_ = fmax((interval_ - delay_) / (float)animation_.get_section().get_maestro().get_timer().get_interval(), 1);
        }
        else {
            step_count_ = 1;
        }
    }

    void AnimationTimer::set_interval(uint16_t interval, uint16_t delay) {
        this->interval_ = interval;
        this->delay_ = delay;
        this->recalculate_step_count();
    }

    bool AnimationTimer::update(const uint32_t& current_time) {
        if (running_ && ((current_time - last_time_) >= (interval_))) {
            last_time_ = current_time;
            return true;
        }

        return false;
    }
}