Final LED Dice Mini Project

/*
 * Divya Inaganti
 * June 9, 2017
 * LED Dice Mini Project
 * Final LED Dice Mini Project
 */
  const int pinLed1 = 2;
  const int pinLed2 = 3;
  const int pinLed3 = 4;
  const int pinLed4 = 5;
  const int pinLed5 = 6;
  const int pinLed6 = 7;
  const int pinLed7 = 9;
  const int pinButton = 8;
  boolean buttonDown = 0;
  boolean ledOn = 0;
  boolean lastButton = 0;
  int counter = 0;
void setup() {
  // put your setup code here, to run once:
pinMode (pinLed1, OUTPUT);
pinMode (pinLed2, OUTPUT);
pinMode (pinLed3, OUTPUT);
pinMode (pinLed4, OUTPUT);
pinMode (pinLed5, OUTPUT);
pinMode (pinLed6, OUTPUT);
pinMode (pinLed7, OUTPUT);
pinMode (pinButton, INPUT);

Serial. begin (9600);
randomSeed(analogRead(A0));
digitalWrite (pinLed1, HIGH);
digitalWrite (pinLed2, HIGH);
digitalWrite (pinLed3, HIGH);
digitalWrite (pinLed4, HIGH);
digitalWrite (pinLed5, HIGH);
digitalWrite (pinLed6, HIGH);
digitalWrite (pinLed7, HIGH);
delay(500);
digitalWrite (pinLed1, LOW);
digitalWrite (pinLed2, LOW);
digitalWrite (pinLed3, LOW);
digitalWrite (pinLed4, LOW);
digitalWrite (pinLed5, LOW);
digitalWrite (pinLed6, LOW);
digitalWrite (pinLed7, LOW);

}

void loop()
{
    // put your main code here, to run repeatedly:
  buttonDown = digitalRead(pinButton);
  //Serial.print (buttonDown);


  buttonDown = debounce(lastButton);      // will go and read the Button

  if (lastButton == LOW && buttonDown == HIGH)    // Checks if the button has been pressed
  {
    counter = random (1,7);
    Serial.println(counter);
  }
  switch (counter)
  {
    case 1:
    digitalWrite(pinLed1, LOW);
    digitalWrite(pinLed2, LOW);
    digitalWrite(pinLed3, LOW);
    digitalWrite(pinLed4, HIGH);
    digitalWrite(pinLed5, LOW);
    digitalWrite(pinLed6, LOW);
    digitalWrite(pinLed7, LOW);
    break;
    case 2:
      digitalWrite(pinLed1, HIGH);
    digitalWrite(pinLed2, LOW);
    digitalWrite(pinLed3, LOW);
    digitalWrite(pinLed4, LOW);
    digitalWrite(pinLed5, LOW);
    digitalWrite(pinLed6, LOW);
    digitalWrite(pinLed7, HIGH);
  break;
  case 3:
     digitalWrite(pinLed1, HIGH);
    digitalWrite(pinLed2, LOW);
    digitalWrite(pinLed3, LOW);
    digitalWrite(pinLed4, HIGH);
    digitalWrite(pinLed5, LOW);
    digitalWrite(pinLed6, LOW);
    digitalWrite(pinLed7, HIGH);
  break;
  case 4:
  digitalWrite(pinLed1, HIGH);
    digitalWrite(pinLed2, LOW);
    digitalWrite(pinLed3, HIGH);
    digitalWrite(pinLed4, LOW);
    digitalWrite(pinLed5, HIGH);
    digitalWrite(pinLed6, LOW);
    digitalWrite(pinLed7, HIGH);
   break;
   case 5:
   digitalWrite(pinLed1, HIGH);
    digitalWrite(pinLed2, LOW);
    digitalWrite(pinLed3, HIGH);
    digitalWrite(pinLed4, HIGH);
    digitalWrite(pinLed5, HIGH);
    digitalWrite(pinLed6, LOW);
    digitalWrite(pinLed7, HIGH);
   break;
   case 6:
   digitalWrite(pinLed1, HIGH);
    digitalWrite(pinLed2, HIGH);
    digitalWrite(pinLed3, HIGH);
    digitalWrite(pinLed4, LOW);
    digitalWrite(pinLed5, HIGH);
    digitalWrite(pinLed6, HIGH);
    digitalWrite(pinLed7, HIGH);
  counter = 0;
  break;
  default:


  //  else if(lastButton == HIGH && buttonDown == LOW)
   //{
   //Serial.print (0);
   //}

  lastButton = buttonDown;

  }
}

boolean debounce(boolean last)

{
  boolean current = digitalRead(pinButton);
  if (last != current)
  {
    delay(5);
    current = digitalRead(pinButton);
  }
  return current;
}