qmk_firmware_custom/keyboards/iris/keymaps/impstyle/keymap.c

#include QMK_KEYBOARD_H

extern keymap_config_t keymap_config;

#define _QWERTY 0
#define _LOWER 1
#define _RAISE 2
#define _ADJUST 16

enum custom_keycodes {
  QWERTY = SAFE_RANGE,
  LOWER,
  RAISE,
  ADJUST,
};

#define KC_ KC_TRNS
#define _______ KC_TRNS

#define KC_LOWR LOWER
#define KC_RASE RAISE
#define KC_RST RESET
#define KC_BL_S BL_STEP
#define KC_TGLW TG(_LOWER)
#define KC_TGRS TG(_RAISE)

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

  [_QWERTY] = LAYOUT(
     KC_ESC , KC_1  , KC_2  , KC_3  , KC_4  , KC_5  ,                    KC_6  , KC_7  , KC_8  , KC_9  , KC_0  ,KC_BSPC,
     KC_TAB , KC_Q  , KC_W  ,KC_E  , KC_R  , KC_T  ,                     KC_Y  , KC_U  , KC_I  , KC_O  , KC_P  ,KC_MINS ,
     KC_LSFT, KC_A  , KC_S  , KC_D  , KC_F  , KC_G  ,                    KC_H  , KC_J  , KC_K  , KC_L  ,KC_SCLN,KC_QUOT,
     KC_LCTL, KC_Z  , KC_X  , KC_C  , KC_V  , KC_B  ,KC_TGRS,     KC_TGLW , KC_N  , KC_M  ,KC_COMM,KC_DOT ,KC_SLSH,KC_BSLASH,
                                  KC_LGUI,KC_RASE,KC_SPC ,         KC_ENT ,KC_LOWR,KC_LALT
  ),

  [_LOWER] = LAYOUT(
     KC_TILD,KC_EXLM, KC_AT ,KC_HASH,KC_DLR ,KC_PERC,               KC_CIRC,KC_AMPR,KC_ASTR,KC_LPRN,KC_RPRN,KC_BSPC,
    _______,_______,KC_PGUP,_______,_______,KC_LBRC,               KC_RBRC, KC_P7 , KC_P8 , KC_P9 ,KC_PLUS,_______,
        _______ ,KC_HOME,KC_PGDN,KC_END,_______,KC_LPRN,               KC_RPRN, KC_P4 , KC_P5 , KC_P6 ,KC_MINS,KC_PIPE,
    _______,_______,_______,_______,_______,_______,_______,        _______ ,_______, KC_P1 , KC_P2 , KC_P3 ,KC_EQL ,KC_UNDS ,
                          _______ ,_______,KC_DEL ,        KC_BSPC ,_______, KC_P0

),
  [_RAISE] = LAYOUT(
     KC_F12 , KC_F1 , KC_F2 , KC_F3 , KC_F4 , KC_F5 ,                KC_F6 , KC_F7 , KC_F8 , KC_F9 ,KC_F10 ,KC_F11 ,
        _______ ,_______, KC_UP ,_______,_______,KC_LBRC,               KC_RBRC,_______,KC_NLCK,KC_INS ,KC_SLCK,KC_MUTE,
        _______ ,KC_LEFT,KC_DOWN,KC_RGHT,_______,KC_LPRN,               KC_RPRN,KC_MPRV,KC_MPLY,KC_MNXT,_______,KC_VOLU,
        _______,_______,_______,_______,_______,_______,_______,        KC_PLUS,_______,_______,_______,_______,_______,KC_VOLD,
                                     _______ ,_______,_______,            KC_EQL,_______,_______
  ),

  [_ADJUST] = LAYOUT(
  //,--------+--------+--------+--------+--------+--------.                          ,--------+--------+--------+--------+--------+--------.
      _______, _______, _______, _______, _______, _______,                            _______, _______, _______, _______, _______, _______,
  //|--------+--------+--------+--------+--------+--------|                          |--------+--------+--------+--------+--------+--------|
      RGB_TOG, RGB_MOD, RGB_HUI, RGB_SAI, RGB_VAI, _______,                            _______, _______, _______, _______, _______, _______,
  //|--------+--------+--------+--------+--------+--------|                          |--------+--------+--------+--------+--------+--------|
      RESET  , DEBUG  , RGB_HUD, RGB_SAD, RGB_VAD, _______,                            _______, _______, _______, _______, _______, _______,
  //|--------+--------+--------+--------+--------+--------+--------.        ,--------|--------+--------+--------+--------+--------+--------|
      BL_STEP, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______, _______, _______,
  //`--------+--------+--------+----+---+--------+--------+--------/        \--------+--------+--------+---+----+--------+--------+--------'
                                      _______, _______, _______,                  _______, _______, _______
  //                                `--------+--------+--------'                `--------+--------+--------'
  )

};

#ifdef AUDIO_ENABLE
float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
#endif

void persistent_default_layer_set(uint16_t default_layer) {
  eeconfig_update_default_layer(default_layer);
  default_layer_set(default_layer);
}

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  switch (keycode) {
    case QWERTY:
      if (record->event.pressed) {
        #ifdef AUDIO_ENABLE
          PLAY_SONG(tone_qwerty);
        #endif
        persistent_default_layer_set(1UL<<_QWERTY);
      }
      return false;
      break;
    case LOWER:
      if (record->event.pressed) {
        layer_on(_LOWER);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      } else {
        layer_off(_LOWER);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      }
      return false;
      break;
    case RAISE:
      if (record->event.pressed) {
        layer_on(_RAISE);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      } else {
        layer_off(_RAISE);
        update_tri_layer(_LOWER, _RAISE, _ADJUST);
      }
      return false;
      break;
    case ADJUST:
      if (record->event.pressed) {
        layer_on(_ADJUST);
      } else {
        layer_off(_ADJUST);
      }
      return false;
      break;
  }
  return true;
}