1 files changed, 29 insertions, 0 deletions
diff --git a/quantum/rgb_matrix_runners/effect_runner_reactive_splash.h b/quantum/rgb_matrix_runners/effect_runner_reactive_splash.h
new file mode 100644
index 0000000000..4f2059c99c
--- /dev/null
+++ b/quantum/rgb_matrix_runners/effect_runner_reactive_splash.h
@@ -0,0 +1,29 @@
+#pragma once
+
+#ifdef RGB_MATRIX_KEYREACTIVE_ENABLED
+
+typedef HSV (*reactive_splash_f)(HSV hsv, int16_t dx, int16_t dy, uint8_t dist, uint16_t tick);
+
+bool effect_runner_reactive_splash(uint8_t start, effect_params_t* params, reactive_splash_f effect_func) {
+  RGB_MATRIX_USE_LIMITS(led_min, led_max);
+
+  uint8_t count = g_last_hit_tracker.count;
+  for (uint8_t i = led_min; i < led_max; i++) {
+    RGB_MATRIX_TEST_LED_FLAGS();
+    HSV hsv = rgb_matrix_config.hsv;
+    hsv.v = 0;
+    for (uint8_t j = start; j < count; j++) {
+      int16_t dx = g_led_config.point[i].x - g_last_hit_tracker.x[j];
+      int16_t dy = g_led_config.point[i].y - g_last_hit_tracker.y[j];
+      uint8_t dist = sqrt16(dx * dx + dy * dy);
+      uint16_t tick = scale16by8(g_last_hit_tracker.tick[j], rgb_matrix_config.speed);
+      hsv = effect_func(hsv, dx, dy, dist, tick);
+    }
+    hsv.v = scale8(hsv.v, rgb_matrix_config.hsv.v);
+    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_KEYREACTIVE_ENABLED