static int biteLED = 6;
static int biteReciever = 7;
static int openPosition = 90;
static int closedPosition = 135;
int biteTimer = -1;
static int biteDelay = 250;

void setup() {
  pinMode(biteLED, OUTPUT);
}

void loop() {
  int now = millis();

  if(checkBite and biteTimer == -1)  {
    biteTimer = closeMouth();
  }
  if (now - biteTimer >= biteDelay) { // if biteDelay milliseconds have passed since the other function was called
    openMouth(); // this may need to be reworked to give better results
    biteTimer = -1;
  }
}

bool checkBite() {
  /* written by natalie
   * 
   * checks if the dinosaur needs to bite
   * the threshold may need to be adjusted based on ambient light levels
   * 
   */
   static int threshold = 500;
   if (analogRead(biteReciever) < threshold) {
    return true;
   }
   return false;
}

int closeMouth() {
  /* written by natalie
   * 
   * this closes the mouth to bite down and also starts a timer for when to stop biting 
   * 
   */
  biteServo.write(closedPosition);
  return millis();
}

void openMouth() {
  /* written by natalie
   * 
   * this returns the mouth to its natural position
   * 
   */
  
  biteServo.write(openPosition);
}