#define analog0 0

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(22, OUTPUT); //a
  pinMode(24, OUTPUT); //b
  pinMode(26, OUTPUT); //c
  pinMode(28, OUTPUT); //d
  pinMode(30, OUTPUT); //e
  pinMode(32, OUTPUT); //f
  pinMode(34, OUTPUT); //g
  pinMode(4, OUTPUT); //led azul
  pinMode(3, OUTPUT); //led vermelho
  pinMode(2, OUTPUT); //led verde
  pinMode(A0, OUTPUT); //potenciometro

  pinMode(9, INPUT_PULLUP); // botao de verificar se esta correto
  pinMode(8, INPUT_PULLUP); //botao de fazer reset aos valores

  int password[4] = {1, 2, 3, 4};
  int verificar[4];


  int num = 0;
  int k = 0;
  int i = 0;
}

void loop() {
  // put your main code here, to run repeatedly:
  int x = map(analogRead(A0), 0, 1023, 0, 9);

  if (x == 0) {
    digitalWrite(22, LOW);
    digitalWrite(24, LOW);
    digitalWrite(26, LOW);
    digitalWrite(28, LOW);
    digitalWrite(30, LOW);
    digitalWrite(32, LOW);
    digitalWrite(34, HIGH);
  }
  if (x == 1) {
    digitalWrite(22, HIGH);
    digitalWrite(24, LOW);
    digitalWrite(26, LOW);
    digitalWrite(28, HIGH);
    digitalWrite(30, HIGH);
    digitalWrite(32, HIGH);
    digitalWrite(34, HIGH);
  }
  if (x == 2) {
    digitalWrite(22, LOW);
    digitalWrite(24, LOW);
    digitalWrite(26, HIGH);
    digitalWrite(28, LOW);
    digitalWrite(30, LOW);
    digitalWrite(32, HIGH);
    digitalWrite(34, LOW);
  }
  if (x == 3) {
    digitalWrite(22, LOW);
    digitalWrite(24, LOW);
    digitalWrite(26, LOW);
    digitalWrite(28, LOW);
    digitalWrite(30, HIGH);
    digitalWrite(32, HIGH);
    digitalWrite(34, LOW);
  }
  if (x == 4) {
    digitalWrite(22, HIGH);
    digitalWrite(24, LOW);
    digitalWrite(26, LOW);
    digitalWrite(28, HIGH);
    digitalWrite(30, HIGH);
    digitalWrite(32, LOW);
    digitalWrite(34, LOW);
  }
  if (x == 5) {
    digitalWrite(22, LOW);
    digitalWrite(24, HIGH);
    digitalWrite(26, LOW);
    digitalWrite(28, LOW);
    digitalWrite(30, HIGH);
    digitalWrite(32, LOW);
    digitalWrite(34, LOW);
  }
  if (x == 6) {
    digitalWrite(22, LOW);
    digitalWrite(24, HIGH);
    digitalWrite(26, LOW);
    digitalWrite(28, LOW);
    digitalWrite(30, LOW);
    digitalWrite(32, LOW);
    digitalWrite(34, LOW);
  }
  if (x == 7) {
    digitalWrite(22, LOW);
    digitalWrite(24, LOW);
    digitalWrite(26, LOW);
    digitalWrite(28, HIGH);
    digitalWrite(30, HIGH);
    digitalWrite(32, HIGH);
    digitalWrite(34, HIGH);
  }
  if (x == 8) {
    digitalWrite(22, LOW);
    digitalWrite(24, LOW);
    digitalWrite(26, LOW);
    digitalWrite(28, LOW);
    digitalWrite(30, LOW);
    digitalWrite(32, LOW);
    digitalWrite(34, LOW);
  }
  if (x == 9) {
    digitalWrite(22, LOW);
    digitalWrite(24, LOW);
    digitalWrite(26, LOW);
    digitalWrite(28, HIGH);
    digitalWrite(30, HIGH);
    digitalWrite(32, LOW);
    digitalWrite(34, LOW);
  }

  if (digitalRead(9) == LOW) {
    if (k == 4) {
      check[k] = i;
      digitalWrite (4, HIGH);
      delay(300);
      digitalWrite (4, LOW);
      k++;
    }
    if (k != 4) {
      for (int j = 0; j < 4; j++) {
        if (check[j] == password[j]) {
          num = num + 1;
        }
      }
      if (num == 4) {
        digitalWrite (2, HIGH);
        delay(1000);
        digitalWrite (2, LOW);
        num = 0;
        k = 0;
      }
      else {
        digitalWrite (4, HIGH);
        delay(500);
        digitalWrite (4, LOW);
        digitalWrite (3, HIGH);
        delay(1000);
        digitalWrite (3, LOW);
        num = 0;
        k = 0;
      }
    }
  }