/*Arduino Oyuna Başla
  Ateşbey, June 2025
*/

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

LiquidCrystal_I2C lcd(0x27, 16, 2);

// Pin Definitions
const int buttonPins1[] = {  5,  6,  7,  8,  9, 10, 11, 12 };  // Button pins
const int ledPins1[]    = { 14, 15, 16, 17, 18, 19, 22, 23 };  // LED pins
const int buttonPins2[] = { 24, 26, 28, 30, 32, 34, 36, 38 };  // Button pins
const int ledPins2[]    = { 25, 27, 29, 31, 33, 35, 37, 39 };  // LED pins
const int buzzerPin     = 13;                                  // Buzzer pin (digital 13)
const int numMoles      = 8;                                   // Number of moles/buttons/LEDs

// Game variables
int currentMole             = -1;    // Current mole (LED) to be lit
int score                   = 0;     // Player's score
unsigned long reactionTime  = 1000;  // Initial reaction time (milliseconds)
unsigned long lastMoleTime  = 0;     // Time when the last mole was lit
unsigned long gameStartTime = 0;     // Start time of the game
unsigned long gameDuration  = 90000; // Total game duration (30 seconds)

// Reaction time adjustment
const unsigned long reactionTimeDecrement = 0;  // Time to reduce reaction by (milliseconds)
const unsigned long minReactionTime       = 0;  // Minimum reaction time (milliseconds)

void setup()
{
  int Button = A0;
  pinMode(Button, INPUT_PULLUP);
  lcd.backlight();
  lcd.begin(16, 2);
  lcd.clear();
  lcd.setCursor(2, 0);
  lcd.print("Butona bas");
  lcd.setCursor(3, 1);
  lcd.print("Oyuna Basla");
  delay(2000);
  lcd.clear();
  while (digitalRead(Button) == HIGH) {};  // wait for Button (A0) press to create LOW when pressed
  gameStartTime = millis();                // Record game start time
  // Initialize button pins and LED pins
  for (int i = 0; i < numMoles; i++)
  {
    pinMode(buttonPins1[i], INPUT_PULLUP);  // Set button pins as input with pull-up resistors
    pinMode(buttonPins2[i], INPUT_PULLUP);  // Set button pins as input with pull-up resistors
    pinMode(ledPins1[i], OUTPUT);           // Set LED pins as output
    pinMode(ledPins2[i], OUTPUT);           // Set LED pins as output
    digitalWrite(ledPins1[i], LOW);         // Turn off all LEDs initially
    digitalWrite(ledPins2[i], LOW);         // Turn off all LEDs initially
  }

  pinMode(buzzerPin, OUTPUT);  // Set buzzer pin as output

  Serial.begin(9600);         // For debugging and displaying the score
  randomSeed(analogRead(0));  // Initialize random seed from an unused analog pin
  Serial.println("Oyun Basladı!");

  lcd.setCursor(2, 0);
  lcd.print("Oyun Basladı!");
  delay(500);
  lcd.clear();

  gameStartTime = millis();  // Record game start time
}

void loop()
{
  unsigned long currentMillis = millis();  // Get the current time

  // Update the progress bar
  unsigned long elapsedTime = currentMillis - gameStartTime;
  if (elapsedTime <= gameDuration)
  {
    int barLength = map(gameDuration - elapsedTime, 0, gameDuration, 0, 16);
    lcd.setCursor(0, 1);
    for (int i = 0; i < 16; i++)
    {
      lcd.print(i < barLength ? '-' : ' ');  // Print '-' for remaining time, ' ' for elapsed
    }
  }

  // Light up a mole after a certain amount of time (based on reactionTime)
  if (currentMillis - lastMoleTime >= reactionTime)
  {
    if (currentMole != -1)
    {
      digitalWrite(ledPins1[currentMole], LOW);  // Turn off the previous mole
      digitalWrite(ledPins2[currentMole], LOW);  // Turn off the previous mole
    }
    currentMole = random(0, numMoles);          // Randomly pick a mole (LED)
    digitalWrite(ledPins1[currentMole], HIGH);  // Light up the chosen LED
    digitalWrite(ledPins2[currentMole], HIGH);  // Light up the chosen LED

    lastMoleTime = currentMillis;  // Update the time when the mole was lit
  }

  // Check if the player pressed the correct button for the lit mole
  for (int i = 0; i < numMoles; i++)
  {
    if (digitalRead(buttonPins1[i]) == LOW)    // Button pressed (LOW due to INPUT_PULLUP)
    {
      if (i == currentMole)
      {
        score++;                                   // Correct mole hit
        if (digitalRead(buttonPins2[i]) == LOW)    // Button pressed (LOW due to INPUT_PULLUP)
        {
          if (i == currentMole)
          {
            score++;  // Correct mole hit
            lcd.setCursor(2, 0);
            lcd.print(" Score:      ");  // Clear the score field with extra spaces
            lcd.setCursor(12, 0);
            lcd.print(score);  // Update the score

            tone(buzzerPin, 1000, 200);  // High-pitched sound (1000Hz) for 200ms

            if (reactionTime > minReactionTime)
            {
              reactionTime -= reactionTimeDecrement;
            }
          }
          else
          {
            score--;  // Wrong mole hit
            lcd.setCursor(2, 0);
            lcd.print(" Score:      ");  // Clear the score field with extra spaces
            lcd.setCursor(12, 0);
            lcd.print(score);  // Update the score

            tone(buzzerPin, 400, 200);  // Low-pitched sound (400Hz) for 200ms
          }

          digitalWrite(ledPins1[currentMole], LOW);  // Turn off the current mole
          currentMole = -1;                          // Reset the mole to indicate no active mole
          delay(500);                                // Short delay to debounce button press
          digitalWrite(ledPins2[currentMole], LOW);  // Turn off the current mole
          currentMole = -1;                          // Reset the mole to indicate no active mole
          delay(500);                                // Short delay to debounce button press
        }
      }

      // End the game after the set duration
      if (elapsedTime >= gameDuration)
      {
        lcd.setCursor(3, 0);
        lcd.print("Game Over!   ");
        lcd.setCursor(0, 1);
        lcd.print("Final Score: ");
        lcd.setCursor(13, 1);
        lcd.print("   ");  // Clear any leftover characters
        lcd.setCursor(13, 1);
        lcd.print(score);  // Print the final score

        // Flash all LEDs and play a sound three times
        for (int i = 0; i < 3; i++)
        {
          for (int j = 0; j < numMoles; j++)
          {
            digitalWrite(ledPins1[j], HIGH);
          }
          for (int i = 0; i < 3; i++)
          {
            for (int j = 0; j < numMoles; j++)
            {
              digitalWrite(ledPins2[j], HIGH);
            }
            tone(buzzerPin, 1000, 300);  // Play sound
            delay(300);                  // Keep LEDs on
            for (int j = 0; j < numMoles; j++)
            {
              digitalWrite(ledPins1[j], LOW);
            }
            tone(buzzerPin, 1000, 300);  // Play sound
            delay(300);                  // Keep LEDs on
            for (int j = 0; j < numMoles; j++)
            {
              digitalWrite(ledPins2[j], LOW);
            }
            delay(300);  // Keep LEDs off
          }

          delay(2000);  // Pause before resetting the game
          lcd.clear();
          score = 0;
          currentMole = -1;
          for (int i = 0; i < numMoles; i++)
          {
            digitalWrite(ledPins1[i], LOW);
          }

          delay(2000);  // Pause before resetting the game
          lcd.clear();
          score = 0;
          currentMole = -1;
          for (int i = 0; i < numMoles; i++)
          {
            digitalWrite(ledPins2[i], LOW);
          }
          lcd.setCursor(0, 0);
          lcd.print(" Start New Game");
        }
        delay(5000);
      }
      lcd.clear();
    }
    gameStartTime = millis();
  }
  reactionTime = 1000;
}