// 7-segment pins (a, b, c, d, e, f, g)
int segmentPins[7] = {2, 3, 4, 5, 6, 7, 8};

// Segment patterns for digits 0–9
// Format: {a, b, c, d, e, f, g}
byte digits[10][7] = {
  {1,1,1,1,1,1,0}, // 0
  {0,1,1,0,0,0,0}, // 1
  {1,1,0,1,1,0,1}, // 2
  {1,1,1,1,0,0,1}, // 3
  {0,1,1,0,0,1,1}, // 4
  {1,0,1,1,0,1,1}, // 5
  {1,0,1,1,1,1,1}, // 6
  {1,1,1,0,0,0,0}, // 7
  {1,1,1,1,1,1,1}, // 8
  {1,1,1,1,0,1,1}  // 9
};

// Function to display a digit on the 7-seg
void displayDigit(int num) {
  for (int i = 0; i < 7; i++) {
    digitalWrite(segmentPins[i], digits[num][i]);
  }
}

// Dice roll function (returns 1–6)
int rollDice() {
  return random(1, 7);  // random number between 1 and 6
}

void setup() {
  for (int i = 0; i < 7; i++) {
    pinMode(segmentPins[i], OUTPUT);
  }
  randomSeed(analogRead(A0)); // random seed from floating pin
}

void loop() {
  int diceValue = rollDice();    // get random dice value
  displayDigit(diceValue);       // show on 7-seg
  delay(1000);                   // wait 1 second
}