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Branch: qmk_compile_build_keyboard
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qmk_firmware/quantum/led_matrix_runners/effect_runner_reactive.h

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#pragma once
#ifdef LED_MATRIX_KEYREACTIVE_ENABLED
typedef uint8_t (*reactive_f)(uint8_t val, uint16_t offset);
bool effect_runner_reactive(effect_params_t* params, reactive_f effect_func) {
LED_MATRIX_USE_LIMITS(led_min, led_max);
uint16_t max_tick = 65535 / led_matrix_eeconfig.speed;
for (uint8_t i = led_min; i < led_max; i++) {
LED_MATRIX_TEST_LED_FLAGS();
uint16_t tick = max_tick;
// Reverse search to find most recent key hit
for (int8_t j = g_last_hit_tracker.count - 1; j >= 0; j--) {
if (g_last_hit_tracker.index[j] == i && g_last_hit_tracker.tick[j] < tick) {
tick = g_last_hit_tracker.tick[j];
break;
}
}
uint16_t offset = scale16by8(tick, led_matrix_eeconfig.speed);
led_matrix_set_value(i, effect_func(led_matrix_eeconfig.val, offset));
}
return led_max < DRIVER_LED_TOTAL;
}
#endif // LED_MATRIX_KEYREACTIVE_ENABLED