69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
/* Copyright 2021 HorrorTroll <https://github.com/HorrorTroll>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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// variable for startup animation
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bool BASE_EFFECT_NOT_STARTED_YET = true;
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uint8_t base_effect_startup_counter = 255;
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uint8_t led_count = 10;
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uint8_t led_first = 7;
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static uint8_t time_to_led(uint8_t time, uint8_t led_behind) {
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uint16_t led_time = led_count * time;
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uint16_t step = ((2 * led_count + (led_time / 128)) - led_behind) % (2 * led_count);
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uint8_t led;
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if (step < led_count) {
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led = step;
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} else {
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led = led_count - 1 - (step - led_count);
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}
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return led;
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}
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static HSV KITT_math(HSV hsv, uint8_t i, uint8_t time) {
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// reset base effect startup
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if (i == 0) {
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BASE_EFFECT_NOT_STARTED_YET = true;
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}
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hsv.h = 0;
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hsv.s = 255;
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if (i >= led_first && i < led_first + led_count) {
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uint8_t j = i - led_first;
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if (j == time_to_led(time, 0)) {
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hsv.v = hsv.v;
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} else if (j == time_to_led(time, 1)) {
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hsv.v = hsv.v/2;
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} else if (j == time_to_led(time, 2)) {
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hsv.v = hsv.v/4;
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} else if (j == time_to_led(time, 3)) {
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hsv.v = hsv.v/8;
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} else {
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hsv.v = 0;
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}
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} else {
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hsv.v = 0;
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}
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return hsv;
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}
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bool KITT(effect_params_t* params) { return effect_runner_i(params, &KITT_math); }
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