qmk_firmware/users/horrortroll/led/random_breath_rainbow.c

56 lines
1.9 KiB
C

/* Copyright 2022 HorrorTroll <https://github.com/HorrorTroll>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
static uint8_t offset[RGB_MATRIX_LED_COUNT];
static void doRandom_breath_rainbow(int i, effect_params_t* params) {
if (!HAS_ANY_FLAGS(g_led_config.flags[i], params->flags)) return;
uint16_t time = scale16by8(g_rgb_timer, rgb_matrix_config.speed / 6);
if (rand() * 50 == 1) {
if (rand() * 2 == 1) {
offset[i]++;
}
else {
offset[i]--;
}
}
//float val = (((float)sin8(time + offset[i]) / 256)/2.1) + .05;
HSV hsv = {0, 255, 255};
hsv.h = scale16by8(g_rgb_timer + offset[i], rgb_matrix_config.speed / 4) + (offset[i]*2);
hsv.v = scale8(abs8(sin8(time) - 128) * 2, hsv.v);
RGB rgb = rgb_matrix_hsv_to_rgb(hsv);
rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
}
bool RANDOM_BREATH_RAINBOW(effect_params_t* params) {
if (!params->init) {
// Change one LED every tick, make sure speed is not 0
doRandom_breath_rainbow(rand() % RGB_MATRIX_LED_COUNT, params);
return false;
}
RGB_MATRIX_USE_LIMITS(led_min, led_max);
for (uint8_t i = led_min; i < led_max; i++) {
doRandom_breath_rainbow(i, params);
}
return led_max < RGB_MATRIX_LED_COUNT;
}