Program Listing for File vuanimation.cpp

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#include "vuanimation.h"

namespace PixelMaestro {
    VUAnimation::VUAnimation(Section& section) : Animation(section) {
        type_ = AnimationType::VUMeter;
        map();
    }

    void VUAnimation::map() {
        // Expand or shrink sample visualization based on Section size
        double sample_index = 0;
        double gap = (NUM_SAMPLES / 2) / dimensions_.x;

        for (uint16_t x = 0; x < dimensions_.x; x++) {
            int y_max = static_cast<int>(vReal[static_cast<int>(sample_index)]);
            for (uint16_t y = 0; y < dimensions_.y; y++) {
                // Check to see if the Pixel is outside of the sample, assuming we're drawing it from bottom to top
                if (dimensions_.y - y > y_max) {
                    set_map_color_index(x, y, 255);
                }
                else {
                    set_map_color_index(x, y, 0);
                }
            }

            sample_index += gap;
        }
    }

    void VUAnimation::set_sample(uint8_t index, double sample) {
        vReal[index] = sample;
        vImg[index] = 0;
    }

    void VUAnimation::update() { }
}