#define PUSH_BUTTON A0
#define LED1 10
#define LED2 9
#define LED3 8


void setup() {
  pinMode(PUSH_BUTTON, INPUT_PULLUP);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  Serial.begin(9600);

  digitalWrite(10, HIGH);
  digitalWrite(9, HIGH);
  digitalWrite(8, HIGH);

}

int estado = 0;
bool buttonPress = false;
long lastPress = 0;


void loop() {
  int valor = digitalRead(PUSH_BUTTON);
  if (valor==LOW){
    if (!buttonPress)
    {
      estado = (estado + 1) % 4;
      switch (estado){
      case 0:
        digitalWrite(10, HIGH);
        digitalWrite(9, HIGH);
        digitalWrite(8, HIGH);
      
      break;
    
      case 1:
        digitalWrite(10, LOW);
        digitalWrite(9, HIGH);
        digitalWrite(8, HIGH);
       
      break;

      case 2:
        digitalWrite(10, HIGH);
        digitalWrite(9, LOW);
        digitalWrite(8, HIGH);
       
      break;
    
      case 3:
      digitalWrite(10, HIGH);
      digitalWrite(9, HIGH);
      digitalWrite(8, LOW);
      break;
      }

    }
    lastPress = millis();
    buttonPress = true;
  }
  else if (millis() - lastPress>200)
    buttonPress = false;
  
  Serial.println(valor);


  delay(100);

}