int carRed=12;
int carYellow = 11; 
int carGreen = 10; 
int pedRed=9;
int pedGreen= 8;
int button = 2;
int crossTime=5000;
unsigned long changeTime;
void setup(){
  pinMode(carRed, OUTPUT);
  pinMode(carYellow, OUTPUT);
  pinMode(carGreen, OUTPUT);
  pinMode(pedRed, OUTPUT);
  pinMode(pedGreen, OUTPUT);
  pinMode(button, INPUT);
digitalWrite(carGreen, HIGH);
digitalWrite(pedRed, HIGH);
}
void loop(){
  int state= digitalRead(button);
  if(state=HIGH&& (millis()-changeTime)>5000){
    changeLights(); 
  }
}
void changeLights(){
  digitalWrite(carGreen,LOW);
  digitalWrite(carYellow,HIGH);
  delay(2000);
  digitalWrite(carYellow,LOW);
  digitalWrite(carRed,HIGH);
  delay(1000);
  digitalWrite(pedRed,LOW);
  digitalWrite(pedGreen,HIGH);
  delay(crossTime);
  for(int x=0;x10;x++){
    digitalWrite(pedGreen,HIGH);
    delay(250);
  digitalWrite(pedGreen,LOW); 
  delay(250);
  }
  digitalWrite(pedRed,HIGH);
  delay(500);
  digitalWrite(carYellow,HIGH);
  digitalWrite(carRed,LOW);
   delay(1000);
   digitalWrite(carGreen,HIGH); 
   digitalWrite(carYellow,LOW); 
   changeTime = millis(); 

}