skylark-qmk/quantum/rgb_matrix_runners/effect_runner_dx_dy_dist.h

#pragma once

typedef HSV (*dx_dy_dist_f)(HSV hsv, int16_t dx, int16_t dy, uint8_t dist, uint8_t time);

bool effect_runner_dx_dy_dist(effect_params_t* params, dx_dy_dist_f effect_func) {
    RGB_MATRIX_USE_LIMITS(led_min, led_max);

    uint8_t time = scale16by8(g_rgb_counters.tick, rgb_matrix_config.speed / 2);
    for (uint8_t i = led_min; i < led_max; i++) {
        RGB_MATRIX_TEST_LED_FLAGS();
        int16_t dx   = g_led_config.point[i].x - k_rgb_matrix_center.x;
        int16_t dy   = g_led_config.point[i].y - k_rgb_matrix_center.y;
        uint8_t dist = sqrt16(dx * dx + dy * dy);
        RGB     rgb  = hsv_to_rgb(effect_func(rgb_matrix_config.hsv, dx, dy, dist, time));
        rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
    }
    return led_max < DRIVER_LED_TOTAL;
}