// Car Light "Color" = clc
#define clr 19
#define cly 18
#define clg 5

//Human Light "Color" = hlc
#define hlg 17
#define hlr 16

//Handlight
#define ticker 4

//Button
#define button 0

//int initialisation
int cycle = 0;

void setup() {
  Serial.begin(9600);
  Serial.println("--------------------------");
  Serial.println("-                        -");
  Serial.println("-     Initializing...    -");
  Serial.println("-                        -");
  Serial.println("--------------------------");

  //INPUTS
  pinMode(button, INPUT);

  //OUTPUTS
  pinMode(clr, OUTPUT);
  pinMode(cly, OUTPUT);
  pinMode(clg, OUTPUT);
  pinMode(hlg, OUTPUT);
  pinMode(hlr, OUTPUT);
  pinMode(ticker, OUTPUT);

  //Light Initialization
  digitalWrite(clr, LOW);
  digitalWrite(cly, LOW);
  digitalWrite(clg, HIGH);
  digitalWrite(hlg, LOW);
  digitalWrite(hlr, HIGH);
  digitalWrite(ticker, LOW);
}

void loop() {

  //if button press enable traffic light cycle
  if (analogRead(button) == 0) {
    lightChange();
  }

}

void lightChange() {

  if (cycle == 0) {
    cycle++; //lock
    handLight();
    toRed();
    toGreen();
    toRed2();
    toGreen2();
    cycle--; //unlock
  }

}

void handLight() {

  //makes hand light cycle trough on/off with 500ms intervals (x10)
  for (int x = 0; x < 16; x++) {
    delay(500);
    digitalWrite(ticker, HIGH);
    delay(500);
    digitalWrite(ticker, LOW);
  }
}

void toRed() {

  //cycles light from green to red
  digitalWrite(clg, LOW);
  digitalWrite(cly, HIGH);
  digitalWrite(ticker, HIGH);
  delay(500);
  digitalWrite(ticker, LOW);
  delay(500);
  digitalWrite(ticker, HIGH);
  delay(500);
  digitalWrite(ticker, LOW);
  digitalWrite(cly, LOW);
  digitalWrite(clr, HIGH);
}

void toGreen() {

  //cycles pedestrian light to green
  delay(3000);
  digitalWrite(hlr, LOW);
  digitalWrite(hlg, HIGH);
}

void toRed2() {

  // cycles pedestrian to red
  delay(10000);
  digitalWrite(hlr, HIGH);
  digitalWrite(hlg, LOW);

}

void toGreen2() {

  // cycles traffic light to green
  delay (3000);
  digitalWrite(clr, LOW);
  digitalWrite(clg, HIGH);
}