Add user horrortroll in userspace (#19769)

users/horrortroll/led/random_breath_rainbow.c

@@ -0,0 +1,55 @@
+/* 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;
+}