// **********************************************
// *                                            *
// * NAME          : Ahmad Hamzeh               *
// * Program Name  : Arduino LAB TEST.ino       *
// * Date          : 2023-04-14                 *
// * Desc          : LED with rotating pattern  *
// *                                            *
// *                                            *
// *                                            *
// **********************************************
#include <LiquidCrystal_I2C.h>  // includes lcd in the program

#define I2C_ADDR    0x27   // defining graphics for lcd
#define LCD_COLUMNS 16  // defining width
#define LCD_LINES   2   //  defining length

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES); 

const int LED     = 8;
const int button  = 2;
int variable      = 1;

void setup() {
  pinMode(LED, OUTPUT);
  pinMode(button, INPUT_PULLUP);


  // put your setup code here, to run once:
  lcd.init(); //      // initializing lcd
  lcd.backlight();    // turn on backlight
  lcd.setCursor(0, 0);// set cursor
  lcd.print("* MENU  SYSTEM *");  // print wanted message-
  delay(1000);
  lcd.print("Main Menu");

   attachInterrupt(digitalPinToInterrupt(button),menuOption, FALLING);
} //end setup

void loop() {
  // put your main code here, to run repeatedly:
  if (variable == 1) {
    lcd.setCursor(3,0); 
    lcd.print("Main Menu");
      digitalWrite(LED, LOW);
  } // end if
  else if  (variable == 2){
    lcd.setCursor(3,0); 
    lcd.print("Start Menu");
      digitalWrite(LED, LOW);
  } // end else if
  else if  (variable == 3){
    lcd.setCursor(3,0); 
    lcd.print("Ply Menu");
      digitalWrite(LED, LOW);
  } // end else if
  else if  (variable == 4){
    lcd.setCursor(3,0); 
    lcd.print("Winner Menu");
    digitalWrite(LED, HIGH);
  } // end else if
  else if  (variable == 5){
      lcd.setCursor(3,0); 
      lcd.print("Game Over");
        digitalWrite(LED, LOW);
  } // end else if



} //end loop

void menuOption() {

  static unsigned long last_interrupt_time = 0;     //debounce template:
  unsigned long        interrupt_time = millis();
        
  variable = variable + 1;  
  if (variable == 6) {
  variable = 1;
  } // end else if
  
last_interrupt_time = interrupt_time;
}