#include <neotimer.h>

#include <LiquidCrystal.h>


int Contrast=75;
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);  

int buttonUp = 10;
int buttonDown = 9;

int score = 0;

bool clicked = false;
bool GameOver = false;

int timeLeft = 30;

Neotimer mytimer = Neotimer(1000);

void gameOver(int currentScore)
{
  GameOver = true;
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Game over!");
  lcd.setCursor(0, 1);
  lcd.print("Your score was: ");
  lcd.setCursor(16, 1);
  lcd.print(score);
  lcd.setCursor(0, 3);
  lcd.print("Hold to restart");
  delay(3000);
  if (digitalRead(buttonDown) == LOW) {
    GameOver = false;
    timeLeft = 30;
    score = 0;
  }
}

void setup()
{
  Serial.begin(9600);
  pinMode(buttonUp, INPUT_PULLUP);
  pinMode(buttonDown, INPUT_PULLUP);
  analogWrite(6,Contrast);
  lcd.begin(20, 4);
  lcd.clear();
  mytimer.start();
} 
void loop()
{ 
  lcd.clear();
  if (mytimer.done()) {
    if (timeLeft == 0) {
      gameOver(score);
    } else {
      timeLeft--;
      mytimer.start();
    }
    
  }

  if (!GameOver) {
    lcd.setCursor(0, 0);
    lcd.print("Time left: ");
    lcd.setCursor(11, 0);
    lcd.print(timeLeft);
    
    lcd.setCursor(0, 1);
    lcd.print("Score: ");
    lcd.setCursor(7, 1);
    lcd.print(score);
  
    if (digitalRead(buttonDown) == LOW) {
      if (clicked == false) {
        clicked = true;
        score++;
      }
    } else if (digitalRead(buttonDown) == HIGH) {
      clicked = false;
    }
  }
  
  delay(20);
}