int pushbutton = 11; //define pushputton pin

void setup() {
  DDRD = B11111110;   //set up seg a-g
  PORTD = 0;
pinMode (pushbutton, INPUT);
}

//define count & max count & button states
int count = 0;
int buttonState = 0;
int lastButtonState = LOW;
int maxCount = 16;


void loop() {
  buttonState = digitalRead(pushbutton);  //read current button state
 
 //For 0-f, Set segments according to the hexadecimal digit using
 // ports instead of hundreds of digitalwrites

  PORTD = B11111100;//0
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) // check if button is pressed
  {count++;                                          // increment counter
    if (count >= maxCount) {
      count = 0; }                                //repeat back to zero once maxxed out @ 15 (aka f)

  PORTD = B01100000;//1
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B11011010;//2
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B11110010;//3
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B01100110;//4
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B10110110;//5
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B10111110;//6
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B11100000;//7
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B11111110;//8
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B11110110;//9
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B11101110;//A
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B00111110;//b
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B10011100;//c
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B01111010;//d
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B10011110;//E
  delay(1000);
  if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}

  PORTD = B10001110;//F
  delay(1000);
if (buttonState == HIGH && lastButtonState == LOW) {
        count++;
    if (count >= maxCount) {
      count = 0;}
  //Serial.println(count);
  //count++;     *for debugging*
}}}}}}}}}}}}}}}}
}
// I was able to get the button to enable correctly to go from 0-1, but I am not too sure
// as to why it wouldn't apply to the other hex #'s, 2-f