qmk_firmware/layouts/community/ortho_4x12/junonum/keymap.c

#include QMK_KEYBOARD_H
#include "muse.h"

enum planck_layers {
  _QWERTY,
  _COLEMAK,
  _DVORAK,
  _LOWER,
  _RAISE,
  _PLOVER,
  _ADJUST,
  
  _FN1,
  _DPAD,
  _DPADNUM
};

enum planck_keycodes {
  QWERTY = SAFE_RANGE,
  COLEMAK,
  DVORAK,
  PLOVER,
  BACKLIT,
  EXT_PLV,

  DP_ON,
  DP_OFF
};

#define SHIFTEN RSFT_T(KC_ENT)
#define LOWER MO(_LOWER)
#define RAISE MO(_RAISE)
#define SPACEFN LT(_FN1, KC_SPC)
#define DPADNUM MO(_DPADNUM)
#define CTRLTAB CTL_T(KC_TAB)

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

	[_QWERTY] = LAYOUT_ortho_4x12(
		KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC,
		CTRLTAB, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,
		KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SHIFTEN,
		_______, KC_LCTL, KC_LGUI, KC_LALT, LOWER,   SPACEFN, SPACEFN, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RIGHT 
		),

	[_COLEMAK] = LAYOUT_ortho_4x12(
		KC_ESC,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC,
		CTRLTAB, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT,
		KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SHIFTEN,
		_______, KC_LCTL, KC_LGUI, KC_LALT, LOWER,   SPACEFN, SPACEFN, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RIGHT 
	),

	[_DVORAK] = LAYOUT_ortho_4x12(
		KC_ESC,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC,
		CTRLTAB, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_QUOT,
		KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SHIFTEN,
		_______, KC_LCTL, KC_LGUI, KC_LALT, LOWER,   SPACEFN, SPACEFN, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RIGHT 
	),

	[_LOWER] = LAYOUT_ortho_4x12(
		KC_TILD, _______, _______, _______, _______, _______, _______, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______, 
		_______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_DLR,  KC_PERC, KC_CIRC, KC_UNDS, KC_PIPE,
		_______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_EXLM, KC_AT,   KC_HASH, KC_PLUS, _______, 
		_______, _______, _______, _______, _______, _______, _______, _______, _______, KC_VOLD, KC_VOLU, KC_MPLY
	),

	[_RAISE] = LAYOUT_ortho_4x12(
		KC_GRV,  _______, _______, KC_LBRC, KC_RBRC, _______, _______, KC_7,   KC_8,    KC_9,   KC_0, 	   _______, 
		_______, _______, _______, KC_LCBR, KC_RCBR, _______, _______, KC_4, 	KC_5, 	 KC_6, 	 KC_MINUS, KC_BSLS, 
		_______, _______, _______, _______, _______, _______, _______, KC_1, 	KC_2, 	 KC_3, 	 KC_EQUAL, _______, 
		_______, _______, _______, _______, _______, _______, _______, _______, _______, KC_VOLD, KC_VOLU, KC_MPLY
	),

	[_PLOVER] = LAYOUT_ortho_4x12(
		KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1,    KC_1   ,
		XXXXXXX, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_LBRC,
		XXXXXXX, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,
		EXT_PLV, XXXXXXX, XXXXXXX, KC_C,    KC_V,    XXXXXXX, XXXXXXX, KC_N,    KC_M,    XXXXXXX, XXXXXXX, XXXXXXX
	),

	[_ADJUST] = LAYOUT_ortho_4x12(
		_______, RESET,   DEBUG,   RGB_TOG, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD,  RGB_VAI, RGB_VAD, KC_DEL ,
		_______, _______, MU_MOD,  AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK,  DVORAK,  PLOVER,  _______,
		_______, MUV_DE,  MUV_IN,  MU_ON,   MU_OFF,  MI_ON,   MI_OFF,  TERM_ON, TERM_OFF, _______, _______, _______,
		_______, _______, _______, _______, _______, _______, _______, _______, _______,  _______, _______, _______
	),

	[_FN1] = LAYOUT_ortho_4x12(
		KC_MENU, _______, KC_PGUP, KC_UP,   KC_PGDN, KC_INS,  _______, _______, KC_UP,   _______, KC_PSCR, _______, 
		KC_CAPS, _______, KC_LEFT, KC_DOWN, KC_RGHT, KC_HOME, _______, KC_LEFT, KC_DOWN, KC_RGHT, _______, KC_DEL , 
		_______, _______, KC_MPRV, KC_MPLY, KC_MNXT, KC_END,  _______, _______, KC_VOLD, KC_VOLU, KC_MUTE, _______,
		_______, _______, _______, _______, _______, _______, _______, _______, DP_ON,   _______, _______, _______
	),

	// Slightly modified layer with inverted T-shaped directional pad
	[_DPAD] = LAYOUT_ortho_4x12(
		KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC,
		KC_TAB,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT,
		KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_UP,   KC_ENT ,
		KC_LCTL, KC_LGUI, KC_LALT, XXXXXXX, DPADNUM, KC_SPC,  KC_SPC,  LOWER,   DP_OFF,  KC_LEFT, KC_DOWN, KC_RGHT
	),

	// Extended layer for weapon switching
	[_DPADNUM] = LAYOUT_ortho_4x12(
		XXXXXXX, KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    XXXXXXX,
		XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,
		_______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,
		_______, _______, _______, XXXXXXX, DPADNUM, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
	)


};

#ifdef AUDIO_ENABLE
  float plover_song[][2]     = SONG(PLOVER_SOUND);
  float plover_gb_song[][2]  = SONG(PLOVER_GOODBYE_SOUND);
  
  // Borrowing audio from unused audio
  // Caps Lock on and off sound too similar
  
  float caps_song_on[][2] = SONG(NUM_LOCK_ON_SOUND);
  float caps_song_off[][2] = SONG(SCROLL_LOCK_ON_SOUND);

  float dpad_song_on[][2] = SONG(ROCK_A_BYE_BABY);
  float dpad_song_off[][2] = SONG(MAJOR_SOUND);
#endif

#ifndef BACKLIGHT_ENABLE
layer_state_t layer_state_set_user(layer_state_t state) {
  return update_tri_layer_state(state, _LOWER, _RAISE, _ADJUST);
}

#else
	
layer_state_t layer_state_set_user(layer_state_t state) {
  // LED control, lighting up when Fn layer is activated
  state = update_tri_layer_state(state, _LOWER, _RAISE, _ADJUST);
  switch (get_highest_layer(state)) {
    case _QWERTY:
      backlight_set(0);
      break;
    case _FN1:
      backlight_set(3);
      break;
	case _DPAD:
      backlight_set(3);
      break;
  }
  return state;
}

#endif 


bool process_record_user(uint16_t keycode, keyrecord_t *record) {
  switch (keycode) {
    case QWERTY:
      if (record->event.pressed) {
        print("mode just switched to qwerty and this is a huge string\n");
        set_single_persistent_default_layer(_QWERTY);
      }
      return false;
      break;
    case COLEMAK:
      if (record->event.pressed) {
        set_single_persistent_default_layer(_COLEMAK);
      }
      return false;
      break;
    case DVORAK:
      if (record->event.pressed) {
        set_single_persistent_default_layer(_DVORAK);
      }
      return false;
      break;
    case BACKLIT:
      if (record->event.pressed) {
        register_code(KC_RSFT);
        #ifdef BACKLIGHT_ENABLE
          backlight_step();
        #endif
        #ifdef KEYBOARD_planck_rev5
          writePinLow(E6);
        #endif
      } else {
        unregister_code(KC_RSFT);
        #ifdef KEYBOARD_planck_rev5
          writePinHigh(E6);
        #endif
      }
      return false;
      break;
    case PLOVER:
      if (record->event.pressed) {
        #ifdef AUDIO_ENABLE
          stop_all_notes();
          PLAY_SONG(plover_song);
        #endif
        layer_off(_RAISE);
        layer_off(_LOWER);
        layer_off(_ADJUST);
        layer_on(_PLOVER);
        if (!eeconfig_is_enabled()) {
            eeconfig_init();
        }
        keymap_config.raw = eeconfig_read_keymap();
        keymap_config.nkro = 1;
        eeconfig_update_keymap(keymap_config.raw);
      }
      return false;
      break;
    case EXT_PLV:
      if (record->event.pressed) {
        #ifdef AUDIO_ENABLE
          PLAY_SONG(plover_gb_song);
        #endif
        layer_off(_PLOVER);
      }
      return false;
      break;
	  
	  
// Play audio upon switching Caps Lock and custom layers

	case KC_CAPS:
		if (record->event.pressed) {
			#ifdef AUDIO_ENABLE
			if (host_keyboard_led_state().caps_lock) {
				PLAY_SONG(caps_song_off);
			} else {
				PLAY_SONG(caps_song_on);
			}
			#endif
		}
		return true;
		
	case DP_ON:
		if (record->event.pressed) {
			
		} else { // only actived upon key release
			#ifdef AUDIO_ENABLE
			PLAY_SONG(dpad_song_on);
			#endif
			
			layer_off(_FN1);
			layer_on(_DPAD);
		}
		
	case DP_OFF:
		if (record->event.pressed) {
			#ifdef AUDIO_ENABLE	
			PLAY_SONG(dpad_song_off);
			#endif
			
			layer_off(_DPAD);	
		}
    }
  return true;
}

bool muse_mode = false;
uint8_t last_muse_note = 0;
uint16_t muse_counter = 0;
uint8_t muse_offset = 70;
uint16_t muse_tempo = 50;

void encoder_update(bool clockwise) {
  if (muse_mode) {
    if (IS_LAYER_ON(_RAISE)) {
      if (clockwise) {
        muse_offset++;
      } else {
        muse_offset--;
      }
    } else {
      if (clockwise) {
        muse_tempo+=1;
      } else {
        muse_tempo-=1;
      }
    }
  } else {
    if (clockwise) {
      tap_code(KC_PGDN);
    } else {
      tap_code(KC_PGUP);
    }
  }
}

void dip_update(uint8_t index, bool active) {
  switch (index) {
    case 0:
      if (active) {
        #ifdef AUDIO_ENABLE
          PLAY_SONG(plover_song);
        #endif
        layer_on(_ADJUST);
      } else {
        #ifdef AUDIO_ENABLE
          PLAY_SONG(plover_gb_song);
        #endif
        layer_off(_ADJUST);
      }
      break;
    case 1:
      if (active) {
        muse_mode = true;
      } else {
        muse_mode = false;
        #ifdef AUDIO_ENABLE
          stop_all_notes();
        #endif
      }
   }
}

void matrix_scan_user(void) {
  #ifdef AUDIO_ENABLE
    if (muse_mode) {
      if (muse_counter == 0) {
        uint8_t muse_note = muse_offset + SCALE[muse_clock_pulse()];
        if (muse_note != last_muse_note) {
          stop_note(compute_freq_for_midi_note(last_muse_note));
          play_note(compute_freq_for_midi_note(muse_note), 0xF);
          last_muse_note = muse_note;
        }
      }
      muse_counter = (muse_counter + 1) % muse_tempo;
    }
  #endif
}

bool music_mask_user(uint16_t keycode) {
  switch (keycode) {
    case RAISE:
    case LOWER:
      return false;
    default:
      return true;
  }
}