Spirals, Pinwheels, and Documentation....Oh My! RGB Matrix Effects (#5877)

* Spirals, Pinwheels, and Documentation....Oh My!

* Spiral effect band thickness adjustments

* Fixing animation spin directions

1 files changed, 23 insertions, 0 deletions

diff --git a/quantum/rgb_matrix_animations/cycle_spiral_anim.h b/quantum/rgb_matrix_animations/cycle_spiral_anim.h
new file mode 100644
index 000000000..865309c25
--- /dev/null
+++ b/quantum/rgb_matrix_animations/cycle_spiral_anim.h
@@ -0,0 +1,23 @@
+#ifndef DISABLE_RGB_MATRIX_CYCLE_SPIRAL
+RGB_MATRIX_EFFECT(CYCLE_SPIRAL)
+#ifdef RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+
+bool CYCLE_SPIRAL(effect_params_t* params) {
+  RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+  HSV hsv = { 0, rgb_matrix_config.sat, rgb_matrix_config.val };
+  uint8_t time = scale16by8(g_rgb_counters.tick, rgb_matrix_config.speed / 2);
+  for (uint8_t i = led_min; i < led_max; i++) {
+    RGB_MATRIX_TEST_LED_FLAGS();
+    int16_t dx = g_led_config.point[i].x - 112;
+    int16_t dy = g_led_config.point[i].y - 32;
+    uint8_t dist = sqrt16(dx * dx + dy * dy);
+    hsv.h = dist - time - atan2_8(dy, dx);
+    RGB rgb = hsv_to_rgb(hsv);
+    rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+  }
+  return led_max < DRIVER_LED_TOTAL;
+}
+
+#endif // RGB_MATRIX_CUSTOM_EFFECT_IMPLS
+#endif // DISABLE_RGB_MATRIX_CYCLE_SPIRAL