// Sisteme cu microprocesoare integrate - Laborator 3
// 8 LED-uri - conectare directă

void setup() {
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  int alege = 0;
  Serial.println("Joc de lumini");
  Serial.println("Alegeti varianta de joc (1-4)");
  while (alege < '1' || alege > '4') {
    alege = Serial.read();
    delay(1000);
  }
  alege = alege - 48;
  Serial.print("Ati ales jocul: ");
  Serial.print(alege, DEC);
  Serial.println();
  Serial.println("Pentru reinitializare apasati butonul Reset al placii");
  switch (alege) {
    case 1:
      joc1();
      break;
    case 2:
      joc2();
      break;
    case 3:
      joc3();
      break;
    case 4:
      joc4();
      break;
  }
}

void joc1() {
  while (1) {
    for (int i = 2; i < 10; i++) {
      if (i % 2 == 0) digitalWrite(i, HIGH);
      else digitalWrite(i, LOW);
    }
    delay(1000);
    for (int i = 2; i < 10; i++) {
      if (i % 2 == 0) digitalWrite(i, LOW);
      else digitalWrite(i, HIGH);
    }
    delay(1000);
  }
}

void joc2() {
  while (1) {
    for (int i = 2; i < 10; i++) {
      digitalWrite(i, HIGH);
      delay(500);
    }
    for (int i = 9; i > 1; i--) {
      digitalWrite(i, LOW);
      delay(500);
    }
  }
}

void joc3() {
  while (1) {
    for (int i = 2; i < 10; i++) {
      for (int j = 2; j < 10; j++) {
        digitalWrite(j, i == j ? HIGH : LOW);
      }
      delay(500);
    }
  }
}

void joc4() {
  int pozitie;
  int aprins;
  while (1) {
    pozitie = random(2, 10);
    aprins = random(0, 2);
    digitalWrite(pozitie, aprins);
    delay(100);
  }
}