#include <Wire.h>
#include <LiquidCrystal_I2C.h>

const int ledPins[] = {5, 4, 3, 2};  // Pin untuk LED
const int buttonPins[] = {12, 11, 10, 9};  // Pin untuk tombol
int sequence[100];  // Menyimpan urutan
int inputSequence[100];  // Menyimpan input pemain
int level = 1;
int score = 0;

// Inisialisasi LCD I2C: Alamat default biasanya 0x27 atau 0x3F
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  for (int i = 0; i < 4; i++) {
    pinMode(ledPins[i], OUTPUT);
    digitalWrite(ledPins[i], LOW);  // Matikan semua LED di awal
    pinMode(buttonPins[i], INPUT_PULLUP);  // Menggunakan INPUT_PULLUP untuk tombol
  }
  
  randomSeed(analogRead(0));  // Inisialisasi seed untuk random number generator
  
  Serial.begin(9600);  // Inisialisasi Serial Monitor
  lcd.begin(16,20);
  lcd.backlight();  // Menghidupkan backlight LCD
  lcd.clear();
  lcd.print("Simon Says Game");
  delay(2000);
  lcd.clear();
}

void loop() {
  lcd.clear();
  lcd.print("Level: ");
  lcd.print(level);
  lcd.setCursor(0, 1);
  lcd.print("Score: ");
  lcd.print(score);
  
  generateSequence(level);
  
  if (checkSequence()) {
    score += level * 10;  // Tambahkan skor berdasarkan level
    level++;
    delay(1000);
  } else {
    // Jika pemain salah menekan urutan
    gameOver();
    level = 1;  // Reset ke level pertama
    score = 0;  // Reset skor
    delay(2000);
  }
}

void generateSequence(int level) {
  for (int i = 0; i < level; i++) {
    sequence[i] = random(0, 4);
    digitalWrite(ledPins[sequence[i]], HIGH);  // LED menyala pada logika HIGH
    delay(500);
    digitalWrite(ledPins[sequence[i]], LOW);  // Matikan LED
    delay(250);
  }
}

bool checkSequence() {
  for (int i = 0; i < level; i++) {
    bool buttonPressed = false;
    while (!buttonPressed) {
      for (int j = 0; j < 4; j++) {
        if (digitalRead(buttonPins[j]) == LOW) {  // LOW karena menggunakan INPUT_PULLUP
          buttonPressed = true;
          inputSequence[i] = j;
          if (inputSequence[i] != sequence[i]) {
            return false;  // Jika input tidak sesuai urutan
          }
          while (digitalRead(buttonPins[j]) == LOW);  // Tunggu hingga tombol dilepas
        }
      }
    }
  }
  return true;  // Jika urutan benar
}

void gameOver() {
  lcd.clear();
  lcd.print("Game Over!");
  lcd.setCursor(0, 1);
  lcd.print("Final Score: ");
  lcd.print(score);
  
  Serial.println("Game Over!");
  Serial.print("Final Score: ");
  Serial.println(score);
}