[Keyboard] Add additional layout to RM_Numpad (#19534)

Co-authored-by: jason <jrucker2004@gmail.com>

keyboards/rmkeebs/rm_numpad/keymaps/big_enter/keymap.c

@@ -0,0 +1,48 @@
+/* Copyright 2023 RuckerMachine
+ *
+ * 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 QMK_KEYBOARD_H
+
+enum custom_keycodes {
+  DBL_ZRO = SAFE_RANGE,
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case DBL_ZRO:
+      if (record->event.pressed) {
+        // when keycode DBL_ZRO is pressed
+        SEND_STRING("00");
+      } else {
+        // when keycode DBL_ZRO is released
+      }
+      break;
+
+  }
+  return true;
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    /* Base */
+    LAYOUT_big_enter_6x4(
+        KC_MPLY, KC_MPRV, KC_MNXT, KC_MUTE,
+        KC_NUM,  KC_PSLS, KC_PAST, KC_PMNS, 
+        KC_P7,   KC_P8,   KC_P9,   KC_EQL,
+        KC_P4,   KC_P5,   KC_P6,   KC_PPLS, 
+        KC_P1,   KC_P2,   KC_P3,
+        KC_P0,   DBL_ZRO, KC_PDOT, KC_ENT
+    )
+};
+

keyboards/rmkeebs/rm_numpad/keymaps/big_enter/readme.md

@@ -0,0 +1,4 @@
+# The big enter keymap for rm_numpad
+
+
+![Big Enter](https://i.imgur.com/Hihd53E.png)

keyboards/rmkeebs/rm_numpad/rm_numpad.h

@@ -125,3 +125,34 @@
     { ___, k51, ___, k53, ___ } \
 }
 
+/* rm_numpad big enter layout
+ * .-------------------.
+ * |PAUS|PREV|NEXT|MUTE|
+ * |-------------------|
+ * |NLCK|   /|   *|   -|
+ * |-------------------|
+ * |   7|   8|   9|   =|
+ * |-------------------|
+ * |   4|   5|   6|   +|
+ * |-------------------|
+ * |   1|   2|   3| Ent|
+ * |--------------|    |
+ * |   0|  00|   .|    |
+ * '-------------------'
+ */
+
+#define LAYOUT_big_enter_6x4( \
+    k00, k01, k02, k03, \
+    k10, k11, k12, k13, \
+    k20, k21, k22, k23, \
+    k30, k31, k32, k33, \
+    k40, k41, k42, \
+    k50, k52, k53, k44 \
+) { \
+    { k00, k01, k02, k03, ___ }, \
+    { k10, k11, k12, k13, ___ }, \
+    { k20, k21, k22, k23, ___ }, \
+    { k30, k31, k32, k33, ___ }, \
+    { k40, k41, k42, ___, k44 }, \
+    { k50, ___, k52, k53, ___ } \
+}