1 files changed, 54 insertions, 0 deletions
diff --git a/keyboards/converter/usb_usb/keymaps/chriskopher/combo.c b/keyboards/converter/usb_usb/keymaps/chriskopher/combo.c
new file mode 100644
index 000000000..c0a354eb5
--- /dev/null
+++ b/keyboards/converter/usb_usb/keymaps/chriskopher/combo.c
@@ -0,0 +1,54 @@
+/* Copyright 2020 Christopher Ko <chriskopher@gmail.com>
+ *
+ * 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/>.
+ */
+
+#include "shared_enum.h"
+
+#include "quantum.h"
+
+enum combo_event {
+    SD_LAYER_COMBO,
+    KL_MEH_COMBO,
+};
+
+const uint16_t PROGMEM sd_combo[] = {KC_S, KC_D, COMBO_END};  // Combo: S + D for SuperDuper mode
+const uint16_t PROGMEM kl_combo[] = {KC_K, KC_L, COMBO_END};  // Combo: K + L for Meh modifier
+
+// Register the combo action
+combo_t key_combos[COMBO_COUNT] = {
+    [SD_LAYER_COMBO] = COMBO_ACTION(sd_combo),
+    [KL_MEH_COMBO]   = COMBO_ACTION(kl_combo),
+};
+
+// Called after a combo event is triggered
+void process_combo_event(uint8_t combo_index, bool pressed) {
+    switch (combo_index) {
+        case SD_LAYER_COMBO:
+            if (pressed) {
+                layer_on(_SUPERDUPER);
+            } else {
+                layer_off(_SUPERDUPER);
+            }
+            break;
+
+        case KL_MEH_COMBO:
+            if (pressed) {
+                register_mods(MOD_MEH);
+            } else {
+                unregister_mods(MOD_MEH);
+            }
+            break;
+    }
+}