Keymap: Adds zen layout for 333fred (#3563)

* Initial commit of zen keymap

* Added RGB control for my zen

* Fixed ergodox layout.

* Reduce brightness.

* PR feedback.

users/333fred/333fred.c

@@ -34,6 +34,7 @@ void tap_dance_layer_finished(qk_tap_dance_state_t *state, void *user_data) {
             break;
         case DOUBLE:
             layer_on(VIM);
+            break;
     }
 }
 
@@ -61,3 +62,26 @@ void tap_dance_process_record(uint16_t keycode) {
         tap_dance_active = false;
     }
 }
+
+__attribute__ ((weak))
+void matrix_init_rgb(void) {}
+
+__attribute__ ((weak))
+void layer_state_set_rgb(uint32_t state) {}
+
+__attribute__ ((weak))
+void matrix_scan_user_keyboard(void) {}
+
+void matrix_scan_user() {
+  static bool first_run = true;
+  if (first_run) {
+    first_run = false;
+    matrix_init_rgb();
+  }
+  matrix_scan_user_keyboard();
+}
+
+uint32_t layer_state_set_user(uint32_t state) {
+  layer_state_set_rgb(state);
+  return state;
+}

users/333fred/333fred.h

@@ -1,5 +1,4 @@
-#ifndef FRED_333
-#define FRED_333
+#pragma once
 
 #include "quantum.h"
 
@@ -18,5 +17,3 @@ enum tap_dance_declarations {
 void tap_dance_layer_finished(qk_tap_dance_state_t*, void*);
 void tap_dance_layer_reset(qk_tap_dance_state_t*, void*);
 void tap_dance_process_record(uint16_t);
-
-#endif

users/333fred/333fred_config.h

@@ -1,7 +1,4 @@
-#ifndef FRED333_CONFIG
-#define FRED333_CONFIG
+#pragma once
 
 #define PREVENT_STUCK_MODIFIERS
 #define PERMISSIVE_HOLD
-
-#endif

users/333fred/rgb.c

@@ -0,0 +1,28 @@
+#include "quantum.h"
+#include "333fred.h"
+
+void matrix_init_rgb(void) {
+  rgblight_enable_noeeprom();
+  rgblight_sethsv_noeeprom(270, 255, 20);
+}
+
+void layer_state_set_rgb(uint32_t state) {
+  switch (biton32(state)) {
+    case BASE:
+      // purple
+      rgblight_sethsv_noeeprom(270, 255, 20);
+      break;
+    case SYMB:
+      // blue
+      rgblight_sethsv_noeeprom(240, 255, 20);
+      break;
+    case VIM:
+      // green
+      rgblight_sethsv_noeeprom(120, 255, 20);
+      break;
+    case GAME:
+      // red
+      rgblight_sethsv_noeeprom(0, 255, 20);
+      break;
+  }
+}

users/333fred/rules.mk

@@ -1,2 +1,5 @@
-
 SRC += 333fred.c
+
+ifeq ($(strip $(RGBLIGHT_ENABLE)), yes)
+  SRC += rgb.c
+endif