#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 10, 9, 8, 7);
const int button1Pin = A0;
const int button2Pin = A1;
const int button3Pin = A2;
const int button4Pin = A3;
const int ledPin = 6;
int gameModeI = 0;
int timeTrial = 0;
enum State {HEALTHY, INFECTED, TREATMENT_IN_PROGRESS, COUNTDOWN};
State currentState = HEALTHY;
bool ledState = false;
unsigned long countdownStartTime = 0;
char *gameModeNames[] = {"Time Trial", "Counting", "Placeholder"};
char *timeTrialNames[] = {"Easy", "Normal", "Hard", "Custom"};


void setup() {
  pinMode(button1Pin, INPUT_PULLUP);
  pinMode(button2Pin, INPUT_PULLUP);
  pinMode(button3Pin, INPUT_PULLUP);
  pinMode(button4Pin, INPUT_PULLUP);
  pinMode(ledPin, OUTPUT);
  lcd.begin(16, 2);
  lcd.print("    WELCOME!");
}
void loop() {

   if (digitalRead(button3Pin) != HIGH) {
    currentState = COUNTDOWN;
    countdownStartTime = millis();
    lcd.clear();
    lcd.print("  Select Mode  ");
    lcd.setCursor(0,1) ; //sets cursor to second line first row
    lcd.print("   Time Trial  ");
    delay(500);
    while (digitalRead(button3Pin) != LOW) {
      currentState = COUNTDOWN;
      countdownStartTime = millis();
        if (digitalRead(button4Pin) == LOW) {
          if(gameModeI == 2){
            delay(500);
            lcd.clear();
            gameModeI = gameModeI;
            lcd.print("  Select Mode  ");
            lcd.setCursor(0,1) ; //sets cursor to second line first row
            lcd.print(gameModeNames[gameModeI]);
            
          }
          else{
            delay(500);
            lcd.clear();
            gameModeI = gameModeI+1;
            lcd.print("  Select Mode  ");
            lcd.setCursor(0,1) ; //sets cursor to second line first row
            lcd.print(gameModeNames[gameModeI]);
          }

      }
        if (digitalRead(button2Pin) == LOW) {
          if(gameModeI == 0){
            delay(500);
            lcd.clear();
            gameModeI = gameModeI;
            lcd.print("  Select Mode  ");
            lcd.setCursor(0,1) ; //sets cursor to second line first row
            lcd.print(gameModeNames[gameModeI]);
          }
          else{
            delay(500);
            lcd.clear();
            gameModeI = gameModeI-1;
            lcd.print("  Select Mode  ");
            lcd.setCursor(0,1) ; //sets cursor to second line first row
            lcd.print(gameModeNames[gameModeI]);
          }
      }
    }
  }
  while (digitalRead(button3Pin) != HIGH) {
      if(gameModeI == 0){
        currentState = COUNTDOWN;
        countdownStartTime = millis();
        if (digitalRead(button4Pin) == LOW) {
          if(timeTrial == 3){
            delay(500);
            lcd.clear();
            gameModeI = gameModeI;
            lcd.print("  Select Settings  ");
            lcd.setCursor(0,1) ; //sets cursor to second line first row
            lcd.print(timeTrialNames[timeTrial]);
          }
          else{
            delay(500);
            lcd.clear();
            gameModeI = gameModeI+1;
            lcd.print("  Select Settings  ");
            lcd.setCursor(0,1) ; //sets cursor to second line first row
            lcd.print(timeTrialNames[timeTrial]);
          }
        }
        if (digitalRead(button2Pin) == LOW) {
          if(timeTrial == 0){
            delay(500);
            lcd.clear();
            gameModeI = gameModeI;
            lcd.print("  Select Settings  ");
            lcd.setCursor(0,1) ; //sets cursor to second line first row
            lcd.print(timeTrialNames[timeTrial]);
          }
          else{
            delay(500);
            lcd.clear();
            gameModeI = gameModeI-1;
            lcd.print("  Select Settings  ");
            lcd.setCursor(0,1) ; //sets cursor to second line first row
            lcd.print(timeTrialNames[timeTrial]);
          }
          
        }
      }

    }



  
}
//.