const int button1 = 13;
const int button2 = 12;
const int LED1 = 3;
const int LED2 = 2;
const int LED3 = 4;
int jumlahParkir = 0;
int maxParkir = 5;
void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(button1, INPUT_PULLUP);
  pinMode(button2, INPUT_PULLUP);
}

void loop() {
  // put your main code here, to run repeatedly:
  bool bacaBT1 = digitalRead(button1);
  bool bacaBT2 = digitalRead(button2);
  if(bacaBT1 == false && bacaBT2 == true){
    if(jumlahParkir >= 15){
      Serial.println("Antrian  penuh");
      for(int i=0;i<=2;i++){
      digitalWrite(LED1, HIGH);
      delay(00);
      digitalWrite(LED1, LOW);
      delay(200);}
      }
    else{
      jumlahParkir++;
      if(jumlahParkir >= 12&&jumlahParkir <15){
      Serial.println("Antrian hampir penuh");
      digitalWrite(LED1, HIGH);
      delay(200);
      digitalWrite(LED1, LOW);}
      if (jumlahParkir >=6 && jumlahParkir <=11){
       Serial.print("Antrian ramai=");
       Serial.println(jumlahParkir);
       digitalWrite(LED3, HIGH);
       delay(100);
       digitalWrite(LED3, LOW);
    } else if(jumlahParkir <=5){
       Serial.print("antrian sepi,Jumlah antrian = ");
       Serial.println(jumlahParkir);
       digitalWrite(LED2, HIGH);
       delay(200);
       digitalWrite(LED2, LOW);
    }
  }}
  else if(bacaBT1 == true && bacaBT2 == false){
    if(jumlahParkir == 0){
      Serial.println("tidak ada penumpang");
      for(int i=0;i<=1;i++){
       digitalWrite(LED2, HIGH);
       delay(200);
       digitalWrite(LED2, LOW);
       delay(200);
      }
    }else{
      jumlahParkir = 0;
      Serial.println("bus datang antrian kosong");
      delay(200);
  }
  return;
}
}