qmk_firmware/keyboards/s60_x/keymaps/amnesia0287/keymap.c

#include QMK_KEYBOARD_H

// Each layer gets a name for readability, which is then used in the keymap matrix below.
// The underscores don't mean anything - you can have a layer called STUFF or any other name.
// Layer names don't all need to be of the same length, obviously, and you can also skip them
// entirely and just use numbers.
#define _BL  0
#define _HLa 1
#define _HLb 2
#define _HL  3
#define _XL  4

enum hype_keycodes {
  FN_HLa = SAFE_RANGE,
  FN_HLb
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* 0: ANSI qwerty */
    [_BL] = LAYOUT(
        KC_ESC,    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_NO,   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_LBRC,  KC_RBRC, KC_BSLS,       \
        KC_LCTL,   KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,  KC_NO,   KC_ENT ,       \
        KC_LSFT,   KC_NO,   KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,           KC_RSFT, FN_HLb, \
        KC_LCTL,   KC_LGUI, KC_LALT,                   KC_SPC,                    KC_NO,   KC_RALT, FN_HLa,  KC_RCTL
        ),
    [_HLa] = LAYOUT(
        KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,    KC_F10,  KC_F11,  KC_F12,  KC_TRNS, KC_DEL,
        KC_CAPS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PSCR, KC_SLCK,  KC_PAUS, KC_UP,   KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PAST, KC_PSLS, KC_HOME, KC_PGUP,  KC_LEFT, KC_RGHT, KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PPLS, KC_PMNS, KC_END,   KC_PGDN, KC_DOWN,          KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS,                   KC_MPLY,                            KC_TRNS,  KC_TRNS, KC_TRNS, KC_TRNS
        ),
    [_HLb] = LAYOUT(
        KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_TRNS, KC_DEL,
        KC_CAPS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PSCR, KC_SLCK, KC_PAUS, KC_UP,   KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PAST, KC_PSLS, KC_HOME, KC_PGUP, KC_LEFT, KC_RGHT, KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PPLS, KC_PMNS, KC_END,  KC_PGDN, KC_DOWN,          KC_TRNS, KC_TRNS,
        KC_TRNS, KC_TRNS, KC_TRNS,                   KC_MPLY,                                     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS
        ),
    [_HL] = LAYOUT(
        RGB_TOG, RGB_M_P, RGB_RMOD, RGB_MOD, KC_TRNS, KC_TRNS, KC_TRNS, BL_BRTG, BL_OFF,  BL_STEP, BL_ON,   BL_DEC,  BL_INC,  KC_TRNS, LALT(KC_F4),
        RESET,   RGB_HUI, RGB_SAI,  RGB_VAI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
        KC_TRNS, RGB_HUD, RGB_SAD,  RGB_VAD, 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, RGB_VAD, RGB_VAI, 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
        ),
};


bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  switch (keycode) {
    case FN_HLa:
      if (record->event.pressed)
      {
        layer_on(_HLa);
        update_tri_layer(_HLa, _HLb, _HL);
      }
      else
      {
        layer_off(_HLa);
        update_tri_layer(_HLa, _HLb, _HL);
      }
      return false;
      break;
    case FN_HLb:
      if (record->event.pressed)
      {
        layer_on(_HLb);
        update_tri_layer(_HLa, _HLb, _HL);
      }
      else
      {
        layer_off(_HLb);
        update_tri_layer(_HLa, _HLb, _HL);
      }
      return false;
      break;
  }
  return true;
}