// Dont Forget to Support My Channel
// Electro Pemula on Youtube and TikTok
// https://www.youtube.com/channel/UCa8eHXL2aL6lc1UN_bcge7A/
// https://www.tiktok.com/@elektropemula/
// Project Video : https://www.tiktok.com/@elektropemula/video/7421878163455741190

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

LiquidCrystal_I2C lcd(0x27, 16, 2);

const int ledPins[] = {4, 6, 8, 10};     // Pin LED
const int buttonPins[] = {5, 7, 9, 11};  // Pin tombol
const int buzzerPin = 3;                 // Pin buzzer

int sequence[100];  // Array untuk menyimpan urutan LED
int level = 0;

// Frekuensi suara untuk setiap LED
const int tones[] = {261, 329, 392, 523};  // Do, Mi, Sol, Do tinggi

unsigned long debounceDelay = 200;  // Waktu debounce (dalam milidetik)
unsigned long lastDebounceTime[4] = {0, 0, 0, 0};  // Penyimpan waktu debounce untuk setiap tombol
bool buttonState[4] = {HIGH, HIGH, HIGH, HIGH};    // Status tombol saat ini
bool lastButtonState[4] = {HIGH, HIGH, HIGH, HIGH}; // Status tombol sebelumnya

void setup() {
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Simon Says Game");

  for (int i = 0; i < 4; i++) {
    pinMode(ledPins[i], OUTPUT);
    pinMode(buttonPins[i], INPUT_PULLUP);
  }
  
  pinMode(buzzerPin, OUTPUT);
  
  delay(2000);
  lcd.clear();
  lcd.setCursor(3, 0);
  lcd.print("Get Ready!");
  delay(1000);
  startNewLevel();
}

void loop() {
  showSequence();
  if (!getPlayerInput()) {
    lcd.setCursor(0, 1);
    lcd.print("Wrong! Game Over");
    tone(buzzerPin, 1000, 1000);  // Buzzer berbunyi jika salah
    delay(2000);
    lcd.clear();
    level = 0;  // Reset game
    startNewLevel();
  } else {
    lcd.setCursor(0, 3);
    lcd.print("Correct! Next LV");
    delay(1000);
    startNewLevel();
  }
}

void startNewLevel() {
  level++;
  
  // Tambah dua LED acak ke urutan
  for (int i = 0; i < 2; i++) {
    sequence[level - 1 + i] = random(0, 4);  // Tambahkan dua LED acak ke urutan
  }
  
  lcd.clear();
  lcd.setCursor(4, 0);
  lcd.print("Level: ");
  lcd.print(level);
  delay(1000);
}

void showSequence() {
  for (int i = 0; i < level * 2; i++) { // Ganti level dengan level * 2
    int currentLED = sequence[i];
    digitalWrite(ledPins[currentLED], HIGH);
    tone(buzzerPin, tones[currentLED]);  // Mainkan nada sesuai LED
    delay(500);  // Tunda agar pemain bisa mengingat
    digitalWrite(ledPins[currentLED], LOW);
    noTone(buzzerPin);  // Matikan buzzer setelah LED mati
    delay(250);
  }
}

bool getPlayerInput() {
  for (int i = 0; i < level * 2; i++) { // Ganti level dengan level * 2
    bool correctInput = false;
    while (!correctInput) {
      for (int j = 0; j < 4; j++) {
        int reading = digitalRead(buttonPins[j]);
        
        // Debounce tombol
        if (reading != lastButtonState[j]) {
          lastDebounceTime[j] = millis();  // Reset waktu debounce
        }
        
        if ((millis() - lastDebounceTime[j]) > debounceDelay) {
          if (reading != buttonState[j]) {
            buttonState[j] = reading;
            
            if (buttonState[j] == LOW) {
              if (j == sequence[i]) {
                digitalWrite(ledPins[j], HIGH);
                tone(buzzerPin, tones[j]);  // Mainkan nada saat tombol ditekan
                delay(400);
                digitalWrite(ledPins[j], LOW);
                noTone(buzzerPin);  // Matikan buzzer setelah tombol dilepas
                correctInput = true;
              } else {
                return false;  // Pemain menekan tombol yang salah
              }
            }
          }
        }
        
        lastButtonState[j] = reading;
      }
    }
  }
  return true;
}