/*
  MSJ Researchers World
  Date - 3rd DEC 2024
  Mentor - Mr. Siranjeevi M
  Contact - 7373771991
*/

// Pin definitions
const int buttonPin = 11;  // Push button connected to pin 11
const int ledPins[] = {4, 5, 6, 7, 8, 9, 10};  // Pins for 7 LEDs to represent dice faces
int buttonState = 0;        // Variable for button state
int lastButtonState = 0;    // Variable for storing the last button state
int randomNumber = 0;       // Store the random dice number

void setup() {
  // Initialize Serial Monitor
  Serial.begin(9600);

  // Initialize the button pin as input
  pinMode(buttonPin, INPUT_PULLUP);

  // Initialize the LED pins
  for (int i = 0; i < 7; i++) {
    pinMode(ledPins[i], OUTPUT);
  }

  // Welcome message
  Serial.println("Digital Dice: Press the button to roll the dice!");
}

void loop() {
  // Read the button state
  buttonState = digitalRead(buttonPin);

  // Check if the button is pressed (LOW because we use internal pull-up)
  if (buttonState == LOW && lastButtonState == HIGH) {
    // Button was pressed, generate a random number between 1 and 6
    randomNumber = random(1, 7);

    // Show the corresponding dice face
    displayDice(randomNumber);

    // Print the result to the Serial Monitor
    Serial.print("Dice rolled: ");
    Serial.println(randomNumber);

    delay(200); // Delay for debouncing
  }

  // Save the current button state for the next loop
  lastButtonState = buttonState;
}

void displayDice(int number) {
  // Turn off all LEDs
  for (int i = 0; i < 7; i++) {
    digitalWrite(ledPins[i], LOW);
  }

  // Display the corresponding face using LEDs
  switch (number) {
    case 1:
      digitalWrite(ledPins[3], HIGH);  // Middle LED
      break;
    case 2:
      digitalWrite(ledPins[0], HIGH);  // Top-left LED
      digitalWrite(ledPins[6], HIGH);  // Bottom-right LED
      break;
    case 3:
      digitalWrite(ledPins[0], HIGH);  // Top-left LED
      digitalWrite(ledPins[3], HIGH);  // Middle LED
      digitalWrite(ledPins[6], HIGH);  // Bottom-right LED
      break;
    case 4:
      digitalWrite(ledPins[0], HIGH);  // Top-left LED
      digitalWrite(ledPins[1], HIGH);  // Top-right LED
      digitalWrite(ledPins[5], HIGH);  // Bottom-left LED
      digitalWrite(ledPins[6], HIGH);  // Bottom-right LED
      break;
    case 5:
      digitalWrite(ledPins[0], HIGH);  // Top-left LED
      digitalWrite(ledPins[1], HIGH);  // Top-right LED
      digitalWrite(ledPins[3], HIGH);  // Middle LED
      digitalWrite(ledPins[5], HIGH);  // Bottom-left LED
      digitalWrite(ledPins[6], HIGH);  // Bottom-right LED
      break;
    case 6:
      digitalWrite(ledPins[0], HIGH);  // Top-left LED
      digitalWrite(ledPins[1], HIGH);  // Top-right LED
      digitalWrite(ledPins[2], HIGH);  // Top-middle LED
      digitalWrite(ledPins[4], HIGH);  // Bottom-middle LED
      digitalWrite(ledPins[5], HIGH);  // Bottom-left LED
      digitalWrite(ledPins[6], HIGH);  // Bottom-right LED
      break;
  }
}