- #include "dmc12.h"
-
- static uint32_t dmc12_color = 0;
- static uint16_t dmc12_timer = 0;
- static int8_t dmc12_current = 0;
- static uint8_t dmc12_direction = 1;
-
- void dmc12_start(uint32_t color, bool reset) {
- dmc12_color = color;
- if (reset) {
- dmc12_timer = 0;
- dmc12_current = 0;
- dmc12_direction = 1;
- }
- }
-
- void dmc12_process(void) {
- if (!dmc12_timer) {
- dmc12_timer = timer_read();
- return;
- }
- float dist_from_center = ((float)abs(dmc12_current - RGBLED_NUM / 2)) / ((float)RGBLED_NUM);
- if (timer_elapsed(dmc12_timer) > dist_from_center * LED_INTERVAL) {
- dmc12_current += dmc12_direction;
- if (dmc12_current == 0 || dmc12_current == RGBLED_NUM - 1) {
- dmc12_direction *= -1;
- }
- dmc12_timer = timer_read();
- for (int i = 0; i < RGBLED_NUM; i++) {
- if (i > dmc12_current - LED_RADIUS && i < dmc12_current + LED_RADIUS) {
- float intensity = (LED_RADIUS - abs(i - dmc12_current)) / ((float)LED_RADIUS);
- if (i != dmc12_current) {
- intensity /= 4.0;
- }
- rgblight_setrgb_at(
- ((dmc12_color >> 16) & 0xFF) * intensity,
- ((dmc12_color >> 8) & 0xFF) * intensity,
- (dmc12_color & 0xFF) * intensity,
- i
- );
- } else {
- rgblight_setrgb_at(0, 0, 0, i);
- }
- }
- }
- }
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