#define SPEAKER_PIN 2

int gameArray[] = {13, 12, 11, 11, 12 ,13 ,13, 12, 11, 11, 11, 12, 13 };
int gameStepCount = 1; 
int gameStep = 0;

int wait_gamer_step =0 ;

void setup() {
  pinMode(7, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(5, OUTPUT);  
}

void loop() {
  boolean keyDown13 = digitalRead(13);
  boolean keyDown12 = digitalRead(12);
  boolean keyDown11 = digitalRead(11);

  if (wait_gamer_step == 0) 
  {
      // Цикл по массиву до gameStepCount
    for (int i = 0; i < gameStepCount; i++) 
    {
        play_sound(gameArray[i]);        
    }
    wait_gamer_step = 1 ;
  }  else 
  {
    for (int i = 1; i <= 3; i++)  // перебор кнопок
    {
        int keyPin = i + 10;
        boolean keyUp = digitalRead(keyPin);
        if (keyUp) // если нажата
        {
          if (keyPin == gameArray[gameStep]) // нажата правильная кнопка
          {
            play_sound(gameArray[gameStep]);
            gameStep ++ ;          
          }
          else 
          { // поражение 
            play_loser() ;
            gameStepCount = 1 ; // возврат на первый уровень ; 
            gameStep = 0;
            wait_gamer_step = 0 ;

          }

          if (gameStep >= gameStepCount) // условие победы
          {
            play_win() ;
            gameStepCount ++ ;  // следующий уровень 
            gameStep = 0;
            wait_gamer_step = 0 ;
          }
        }
    }
  }
}

void play_sound(int keyDown) {
  if (keyDown == 11) {
    digitalWrite(5, HIGH);
    tone(SPEAKER_PIN, 330); //Ми
    delay(500);
    digitalWrite(5, LOW);
    noTone(SPEAKER_PIN);
    delay(500);
  }

  if (keyDown == 12) {
    digitalWrite(6, HIGH);
    tone(SPEAKER_PIN, 294); // Ре
    delay(500);
    digitalWrite(6, LOW);
    noTone(SPEAKER_PIN);
    delay(500);
  }

  if (keyDown == 13) {
    digitalWrite(7, HIGH);
    tone(SPEAKER_PIN, 262); // До
    delay(500);
    digitalWrite(7, LOW);
    noTone(SPEAKER_PIN);
    delay(500);
  }
}


void play_loser() 
{
    delay(500);
    digitalWrite(5, HIGH);
    digitalWrite(6, HIGH);
    digitalWrite(7, HIGH);
    tone(SPEAKER_PIN, 262);
    delay(500);
    digitalWrite(5, LOW);
    digitalWrite(6, LOW);
    digitalWrite(7, LOW);
    noTone(SPEAKER_PIN);
    delay(500);
        
    digitalWrite(5, HIGH);
    digitalWrite(6, HIGH);
    digitalWrite(7, HIGH);
    tone(SPEAKER_PIN, 262);
    delay(500);
    digitalWrite(5, LOW);
    digitalWrite(6, LOW);
    digitalWrite(7, LOW);
    noTone(SPEAKER_PIN);
    
    delay(500);
    digitalWrite(5, HIGH);
    digitalWrite(6, HIGH);
    digitalWrite(7, HIGH);
    tone(SPEAKER_PIN, 262);
    delay(500);
    digitalWrite(5, LOW);
    digitalWrite(6, LOW);
    digitalWrite(7, LOW);
    noTone(SPEAKER_PIN);
    delay(500);    
    delay(500);    
}

void play_win() 
{
    delay(500);
    digitalWrite(5, HIGH);
    tone(SPEAKER_PIN, 1568);
    delay(100);    
    digitalWrite(5, LOW);
    noTone(SPEAKER_PIN);
    delay(100);    

    digitalWrite(6, HIGH);
    tone(SPEAKER_PIN, 1568);
    delay(100);    
    digitalWrite(6, LOW);
    noTone(SPEAKER_PIN);
    delay(100);    

    digitalWrite(7, HIGH);
    tone(SPEAKER_PIN, 1568);
    delay(100);    
    digitalWrite(7, LOW);
    noTone(SPEAKER_PIN);
    delay(100);    

    delay(500);
}