#include <Arduino.h>
#include <U8x8lib.h>

U8X8_SSD1306_128X64_ALT0_HW_I2C oled(/* reset=*/ U8X8_PIN_NONE);

// notes in the melody:
int melody[] = {
  NOTE_C4, NOTE_G3, NOTE_G3, NOTE_A3, NOTE_G3, 0, NOTE_B3, NOTE_C4
};

//G4 A4 B4 C5 D5 E5 FS5 G5
int melody_motherland[] = {
  NOTE_D5, NOTE_E5, NOTE_D5, NOTE_C5, NOTE_B4, NOTE_A4,
  NOTE_G4, NOTE_D4,
  NOTE_G4, NOTE_B4, NOTE_G5, NOTE_FS5, NOTE_E5, NOTE_B4,
  NOTE_D5
};


// note durations: 1 = quarter note, 2 = eighth note, etc.:
float duration[] = {
  1, 0.5, 0.5, 1, 1, 1, 1, 1
};

float duration_motherland[] = {
  1, 1, 1, 1, 1, 1,
  3, 3,
  1, 1, 1, 1, 1.5, 0.5,
  6
};

int length, length_motherland;
int tonepin = 5;

void setup()
{
  pinMode(tonepin, OUTPUT);
  length = sizeof(melody) / sizeof(melody[0]);
  length_motherland = sizeof(melody_motherland) / sizeof(melody_motherland[0]);

  oled.begin();
  oled.setFlipMode(0);

}

void loop()
{
  lcd.clear();
  if (analogRead(A0) <= 300)
  { oled.print("mute");
    noTone(tonepin);
    delay(2000);
  }
  else if (analogRead(A0) <= 700) {
    oled.print("music 1");
    for (int thisNote = 0; thisNote < length; thisNote++) {
      int noteDuration = 250 * duration[thisNote];
      tone(tonepin, melody[thisNote], noteDuration);

      // to distinguish the notes, set a minimum time between them.
      // the note's duration + 30% seems to work well:
      int pauseBetweenNotes = noteDuration * 1.10;
      delay(pauseBetweenNotes);
      // stop the tone playing:
      //noTone(tonepin);
    }
    delay(2000);
  }
  else {
    oled.print("My Motherland");
    oled.setCursor(0,1);
    oled.print("and Me");
    for (int thisNote = 0; thisNote < length_motherland; thisNote++) {
      int noteDuration = 250 * duration_motherland[thisNote];
      tone(tonepin, melody_motherland[thisNote], noteDuration);

      // to distinguish the notes, set a minimum time between them.
      // the note's duration + 30% seems to work well:
      int pauseBetweenNotes = noteDuration * 1.20;
      delay(pauseBetweenNotes);
      // stop the tone playing:
      //noTone(tonepin);
    }
    delay(2000);
  }
}