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#ifdef ENABLE_RGB_MATRIX_RIVERFLOW
RGB_MATRIX_EFFECT(RIVERFLOW)
# ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
// inspired by @PleasureTek's Massdrop Alt LED animation
bool RIVERFLOW(effect_params_t* params) {
RGB_MATRIX_USE_LIMITS(led_min, led_max);
for (uint8_t i = led_min; i < led_max; i++) {
HSV hsv = rgb_matrix_config.hsv;
uint16_t time = scale16by8(g_rgb_timer + (i * 315), rgb_matrix_config.speed / 8);
hsv.v = scale8(abs8(sin8(time) - 128) * 2, hsv.v);
RGB rgb = rgb_matrix_hsv_to_rgb(hsv);
RGB_MATRIX_TEST_LED_FLAGS();
rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
}
return rgb_matrix_check_finished_leds(led_max);
}
# endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
#endif // ENABLE_RGB_MATRIX_RIVERFLOW
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