//made by rikhil

#define GREEN_BTN   A0
#define RED_BTN     A1
#define BLUE_BTN    A2
#define YELLOW_BTN  A3
#define LED_PIN     LED_BUILTIN

#define BTN_COUNT 4
#define MAX_SEQ   32

const char* colorNames[BTN_COUNT] = { "Green", "Red", "Blue", "Yellow" };
const int btnPins[BTN_COUNT] = { GREEN_BTN, RED_BTN, BLUE_BTN, YELLOW_BTN };

uint8_t sequence[MAX_SEQ];
uint8_t level = 0;
bool gameOver = false;

void blinkLED(int times, int delayMs) {
  for (int i = 0; i < times; i++) {
    digitalWrite(LED_PIN, HIGH);
    delay(delayMs);
    digitalWrite(LED_PIN, LOW);
    delay(delayMs);
  }
}

// Wait for any button press and return its index
int waitButton() {
  while (true) {
    for (int i = 0; i < BTN_COUNT; i++) {
      if (digitalRead(btnPins[i]) == LOW) {
        // Wait for release (debounce)
        while (digitalRead(btnPins[i]) == LOW) delay(10);
        return i;
      }
    }
    delay(5);
  }
}

// "Play" the sequence by printing to Serial and blinking LED
void playSequence() {
  Serial.print("Sequence: ");
  for (int i = 0; i < level; i++) {
    Serial.print(colorNames[sequence[i]]);
    Serial.print(" ");
    blinkLED(1, 200);
    delay(200);
  }
  Serial.println();
}

void setup() {
  Serial.begin(115200);
  for (int i = 0; i < BTN_COUNT; i++) {
    pinMode(btnPins[i], INPUT_PULLUP);
  }
  pinMode(LED_PIN, OUTPUT);
  randomSeed(analogRead(A0));

  Serial.println("=== Simon Says Memory Game ===");
  Serial.println("Repeat the sequence using the colored buttons!");
  Serial.println("Press any button to start.");
  while (waitButton() == -1);
}

void loop() {
  // Start or restart game
  level = 1;
  gameOver = false;
  for (int i = 0; i < MAX_SEQ; i++) {
    sequence[i] = random(0, BTN_COUNT);
  }

  while (!gameOver) {
    Serial.print("\nLevel ");
    Serial.println(level);
    delay(500);

    playSequence();

    // Player input
    for (int i = 0; i < level; i++) {
      int btn = waitButton();
      if (btn == sequence[i]) {
        blinkLED(1, 50); // Short blink for correct
      } else {
        Serial.println("Wrong button! Game Over.");
        blinkLED(3, 150); // Triple blink for failure
        Serial.print("Your score: ");
        Serial.println(level - 1);
        gameOver = true;
        break;
      }
    }

    if (!gameOver) {
      Serial.println("Correct! Next round...");
      blinkLED(2, 100); // Double blink for success
      level++;
      if (level > MAX_SEQ) {
        Serial.println("Congratulations! You beat the game!");
        gameOver = true;
      }
    }
    delay(700);
  }

  Serial.println("\nPress any button to play again.");
  while (waitButton() == -1);
}