1 files changed, 33 insertions, 0 deletions

diff --git a/quantum/rgb_matrix_animations/solid_reactive_anim.h b/quantum/rgb_matrix_animations/solid_reactive_anim.h
new file mode 100644
index 000000000..220e54233
--- /dev/null
+++ b/quantum/rgb_matrix_animations/solid_reactive_anim.h
@@ -0,0 +1,33 @@
+#pragma once
+#if defined(RGB_MATRIX_KEYREACTIVE_ENABLED)
+#ifndef DISABLE_RGB_MATRIX_SOLID_REACTIVE
+
+extern rgb_config_t rgb_matrix_config;
+extern last_hit_t g_last_hit_tracker;
+
+bool rgb_matrix_solid_reactive(effect_params_t* params) {
+  RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+  HSV hsv = { rgb_matrix_config.hue, 255, rgb_matrix_config.val };
+  // Max tick based on speed scale ensures results from scale16by8 with rgb_matrix_config.speed are no greater than 255
+  uint16_t max_tick = 65535 / rgb_matrix_config.speed;
+  // Relies on hue being 8-bit and wrapping
+  for (uint8_t i = led_min; i < led_max; i++) {
+    uint16_t tick = max_tick;
+    for(uint8_t j = 0; j < g_last_hit_tracker.count; j++) {
+      if (g_last_hit_tracker.index[j] == i && g_last_hit_tracker.tick[j] < tick) {
+        tick = g_last_hit_tracker.tick[j];
+        break;
+      }
+    }
+
+    uint16_t  offset = scale16by8(tick, rgb_matrix_config.speed);
+    hsv.h = rgb_matrix_config.hue + qsub8(130, offset);
+    RGB rgb = hsv_to_rgb(hsv);
+    rgb_matrix_set_color(i, rgb.r, rgb.g, rgb.b);
+  }
+  return led_max < DRIVER_LED_TOTAL;
+}
+
+#endif // DISABLE_RGB_MATRIX_RAINBOW_MOVING_CHEVRON
+#endif // defined(RGB_MATRIX_KEYREACTIVE_ENABLED)