#define westButton 13
#define eastButton 3
#define westRed 12
#define westYellow 11
#define westGreen 10
#define eastRed 2
#define eastYellow 1
#define eastGreen 0
#define yellowBlinkTime 500

boolean trafficWest = true;
int flowTime = 5000;
int changeDelay = 2000;



void setup() {
  pinMode(westButton, INPUT);
  pinMode(eastButton, INPUT);
  pinMode(westRed, OUTPUT);
  pinMode(westYellow, OUTPUT);
  pinMode(westGreen, OUTPUT);
   pinMode(eastRed, OUTPUT);
  pinMode(eastYellow, OUTPUT);
  pinMode(eastGreen, OUTPUT);


  digitalWrite(westRed, LOW);
  digitalWrite(westYellow, LOW);
  digitalWrite(westGreen, HIGH);

  digitalWrite(eastRed, HIGH);
  digitalWrite(eastYellow, LOW);
  digitalWrite(eastGreen, LOW);



}

void loop() {
  if(digitalRead(westButton) == HIGH){
    if(trafficWest != true){
      trafficWest = true;
      delay(flowTime);
      digitalWrite(eastGreen, LOW);
      digitalWrite(eastYellow, HIGH);
      delay(changeDelay);
      digitalWrite(eastYellow, LOW);
      digitalWrite(eastRed, HIGH);
      delay(changeDelay);
      for(int a = 0; a<5; a++){
        digitalWrite(westYellow, LOW);
        delay(yellowBlinkTime);
        digitalWrite(westYellow, HIGH);
        delay(yellowBlinkTime);
      }
      digitalWrite(westYellow, LOW);
      digitalWrite(westRed, LOW);
      digitalWrite(westGreen,HIGH);
    }
  }


  if(digitalRead(eastButton) == HIGH){
    if(trafficWest == true){
      trafficWest = false;
      delay(flowTime);
      digitalWrite(westGreen, LOW);
      digitalWrite(westYellow, HIGH);
      delay(changeDelay);
      digitalWrite(westYellow, LOW);
      digitalWrite(westRed, HIGH);
      delay(changeDelay);
      for(int a = 0; a<5; a++){
        digitalWrite(eastYellow, LOW);
        delay(yellowBlinkTime);
        digitalWrite(eastYellow, HIGH);
        delay(yellowBlinkTime);
      }
      digitalWrite(eastYellow, LOW);
      digitalWrite(eastRed, LOW);
      digitalWrite(eastGreen, HIGH);
    }
  }

}