const int RedLed1 = 13;
const int GrLed1 = 16;
const int YlLed1 = 17;

const int RedLed2 = 18;
const int GrLed2 = 19;
const int YlLed2 = 21;

const int RedLed3 = 22;
const int GrLed3 = 23;
const int YlLed3 = 25;

const int RedLed4 = 26;
const int GrLed4 = 27;
const int YlLed4 = 32;




void setup() {
  // put your setup code here, to run once:
  pinMode(RedLed1, OUTPUT);
  pinMode(RedLed2, OUTPUT);
  pinMode(RedLed3, OUTPUT);
  pinMode(RedLed4, OUTPUT);

  pinMode(GrLed1, OUTPUT);
  pinMode(GrLed2, OUTPUT);
  pinMode(GrLed3, OUTPUT);
  pinMode(GrLed4, OUTPUT);

  pinMode(YlLed1, OUTPUT);
  pinMode(YlLed2, OUTPUT);
  pinMode(YlLed3, OUTPUT);
  pinMode(YlLed4, OUTPUT);

}

void loop() {

delay(5000);
simp1();
delay(5000);
simp2();
delay(5000);
simp3();
delay(5000);
simp4();

}


/*Simpang 1*/
void simp1(){
  digitalWrite (RedLed1, HIGH);
  digitalWrite (RedLed2, HIGH);
  digitalWrite (RedLed3, HIGH);
  digitalWrite (RedLed4, HIGH);
  digitalWrite(YlLed1, HIGH);
  delay(1000);
  digitalWrite(YlLed1, LOW);
  digitalWrite (RedLed1, LOW);
  digitalWrite (GrLed1, HIGH);
  digitalWrite (GrLed2, LOW);
  digitalWrite (GrLed3, LOW);
  digitalWrite (GrLed4, LOW);
  digitalWrite(YlLed1, HIGH);
  delay(1000);
  digitalWrite(YlLed1, LOW);
}


//Simpang 2
void simp2(){
  digitalWrite (RedLed1, HIGH);
  digitalWrite (RedLed2, HIGH);
  digitalWrite (RedLed3, HIGH);
  digitalWrite (RedLed4, HIGH);
  digitalWrite(YlLed2, HIGH);
  delay(1000);
  digitalWrite(YlLed2, LOW);
  digitalWrite (RedLed2, LOW);
  digitalWrite (GrLed1, LOW);
  digitalWrite (GrLed2, HIGH);
  digitalWrite (GrLed3, LOW);
  digitalWrite (GrLed4, LOW);
  digitalWrite(YlLed2, HIGH);
  delay(1000);
  digitalWrite(YlLed2, LOW);
}

//Simpang 3
void simp3(){
  digitalWrite (RedLed1, HIGH);
  digitalWrite (RedLed2, HIGH);
  digitalWrite (RedLed3, HIGH);
  digitalWrite (RedLed4, HIGH);
  digitalWrite(YlLed3, HIGH);
  delay(1000);
  digitalWrite(YlLed3, LOW);
  digitalWrite (RedLed3, LOW);
  digitalWrite (GrLed1, LOW);
  digitalWrite (GrLed2, LOW);
  digitalWrite (GrLed3, HIGH);
  digitalWrite (GrLed4, LOW);
  digitalWrite(YlLed3, HIGH);
  delay(1000);
  digitalWrite(YlLed3, LOW);
}

//Simpang 4
void simp4(){
  digitalWrite (RedLed1, HIGH);
  digitalWrite (RedLed2, HIGH);
  digitalWrite (RedLed3, HIGH);
  digitalWrite (RedLed4, HIGH);
  digitalWrite(YlLed4, HIGH);
  delay(1000);
  digitalWrite(YlLed4, LOW);
  digitalWrite (RedLed4, LOW);
  digitalWrite (GrLed1, LOW);
  digitalWrite (GrLed2, LOW);
  digitalWrite (GrLed3, LOW);
  digitalWrite (GrLed4, HIGH);
  digitalWrite(YlLed4, HIGH);
  delay(1000);
  digitalWrite(YlLed4, LOW);

}