qmk_firmware/keyboards/hhkb/ansi/keymaps/blakedietz/keymap.c

#include QMK_KEYBOARD_H

// Layer names
#define BASE 0
#define DEV 1
#define MOUSE 2
#define MEDIA 3

// Required for leader function. Measured in ms
// #define LEADER_TIMEOUT 300

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {

    /* BASE Level: Default Layer
     |-----------+-------+--------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+------+----|
     |     `     |  1    | 2      | 3     |   4   |   5   |   6   | 7     | 8     | 9     | 0     | -     | =     | Bksp |Lead|
     |-----------+-------+--------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+------+----|
     |    Tab    |  Q    | W      | E     |   R   |   T   |   Y   |  U    | I     | O     | P     | [     | ]     |      | \  |
     |-----------+-------+--------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+------+----|
     | Esc/Hyper |   A   | S      | D     |   F   |   G   |   H   |  J    | K     | L     |;/Media| '     | Enter |      |    |
     |-----------+-------+--------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+------+----|
     |   Shift   | Z/Ctl | X/Alt  | C/Gui |   V   |   B   |   N   |  M    | ,/Gui | ./Alt | //Ctl | Shift | Dev   |      |    |
     |-----------+-------+--------+-------+-------+-------+-------+-------+-------+-------+-------+-------+-------+------+----|
     TODO: Maybe add a photoshop layer for when I need to hold spacebar down. Maybe just make it a layer that you
                 |------+------+-----------------------+------+------|
                 | Dev  |Mouse | ******* Space ******* | Dev  |Mouse |
                 |------+------+-----------------------+------+------|
    */

    [BASE] = LAYOUT( //  default layer
        KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC, QK_LEAD,
        KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS,
        ALL_T(KC_ESC), KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, LT(MEDIA, KC_SCLN), KC_QUOT, ALL_T(KC_ENT),
        KC_LSFT, CTL_T(KC_Z), ALT_T(KC_X), GUI_T(KC_C), KC_V, KC_B, KC_N, KC_M, GUI_T(KC_COMM), ALT_T(KC_DOT), CTL_T(KC_SLSH), KC_RSFT, TG(DEV),
        TG(DEV), TG(MOUSE), LT(DEV, KC_SPC), TG(MOUSE), TG(DEV)),

    /* Layer DEV: DEV mode (DEV Fn)
      TODO: Add a cmd/tab function to the developer layer for quick switching between different applications when debugging
      |------+-----+-----+-----+----+----+--------+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      |     |     |     |    |    |        |                |              |           |             |     |       |       |     |
      |------+-----+-----+-----+----+----+--------+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      |     |     |     |    |    |        |                |              |           |             |     |       |       |     |
      |------+-----+-----+-----+----+----+--------+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      | F1  | F2  | F3  | F4 | F5 | Left   |  Down          | Up           | Right     |             |     |       |       |     |
      |------+-----+-----+-----+----+----+--------+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      |     |     |     |    |    |        |                |              |           |             |     |       |       |     |
      |------+-----+-----+-----+----+----+--------+----------------+--------------+-----------+-------------+-----+-------+-------+-----|

                 |------+------+----------------------+------+------+
                 | **** | **** | ******************** | **** | **** |
                 |------+------+----------------------+------+------+
     */

    [DEV] = LAYOUT(
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
        KC_TRNS, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_LEFT, KC_DOWN, KC_UP, KC_RIGHT, KC_TRNS, KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, TG(DEV),
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS),

    /* Layer MOUSE: MOUSE mode (MOUSE Fn)
      |------+-----+-----+-----+----+----+--------+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      |     |     |     |    |    |        |                |              |           |             |     |       |       |     |
      |------+-----+-----+-----+----+----+--------+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      |     |     |     |    |    |        |                |              |           |             |     |       |       |     |
      |------+-----+-----+-----+----+----+--------+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      |     |     |     |    |    |        |                |              |           |             |     |       |       |     |
      |------+-----+-----+-----+----+----+--------+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      |     |     |     |    |    |        |                |              |           |             |     |       |       |     |
      |------+-----+-----+-----+----+----+--------+----------------+--------------+-----------+-------------+-----+-------+-------+-----|

                 |------+------+----------------------+------+------+
                 | **** | **** | ******************** | **** | **** |
                 |------+------+----------------------+------+------+
     */

    [MOUSE] = LAYOUT(
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS, KC_MS_U, KC_TRNS, KC_TRNS, KC_TRNS, KC_WH_D, KC_WH_U, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_MS_L, KC_MS_D, KC_MS_R, KC_TRNS, KC_TRNS, KC_BTN1, KC_BTN2, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, TG(DEV),
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS),

    /* Layer MEDIA: mode (Hold Semi-colon)
      |------+-----+-----+-----+----+----+----+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      |     |     |     |    |    |    |                |              |           |             |     |       |       |     |
      |------+-----+-----+-----+----+----+----+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      |     |     |     |    |    |    |                |              |           |             |     |       |       |     |
      |------+-----+-----+-----+----+----+----+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      |     |     |     |    |    |    |  Previous      | Next         |           |  Play/Pause |     |       |       |     |
      |------+-----+-----+-----+----+----+----+----------------+--------------+-----------+-------------+-----+-------+-------+-----|
      |      |     |     |     |    |    |    |  Volume Down   | Volume Up    | Mute      |             |     |       |       |     |
      |------+-----+-----+-----+----+----+----+----------------+--------------+-----------+-------------+-----+-------+-------+-----|

                 |------+------+----------------------+------+------+
                 | **** | **** | ******************** | **** | **** |
                 |------+------+----------------------+------+------+

     */

    [MEDIA] = LAYOUT(
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_MPRV, KC_MNXT, KC_MUTE, KC_TRNS, KC_MPLY, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_VOLD, KC_VOLU, KC_TRNS, KC_TRNS, KC_TRNS, TG(DEV),
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS)};