//Created by Barbu Vulc!
/*
 * In this sketch we will simulate a automatic gearbox & orientation of a car...
 * ...with a joystick and 16x2 LCD! We have: drive (D), neutral (N) & reverse (R)!
 * The LCD is used as an on-board car screen!
 */
//LCD (library & object):
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
//Define Joystick variables:
#define joyX A0   // X axis
#define joyY A1   // Y axis
#define button 2  // Joystick's pushbutton

void setup() {
  //Joystick Initialization:
  //pinMode(joyX, INPUT); pinMode(joyY, INPUT); pinMode(button, INPUT_PULLUP);
  //LCD Initialization:
  lcd.init(); lcd.backlight(); lcd.setCursor(0, 0); lcd.print("Engine started!");
  delay(3000); lcd.clear();
}

void loop() {
  //Read joystick values (gear - pin A0 & direction - pin A1):
  int gear = analogRead(joyX), direction = analogRead(joyY);

  //Print gear & orientation depending on joystick values:
  if(gear == 1023 && direction == 511) {
    lcd.clear();
    lcd.setCursor(0, 0);  lcd.print("Gear: Drive     ");
    lcd.setCursor(0, 1);  lcd.print("                ");
  } if(gear == 1023 && direction == 0) {
    lcd.setCursor(0, 0);  lcd.print("Gear: Drive     ");
    lcd.setCursor(0, 1);  lcd.print("Direction: Left ");
  } if(gear == 1023 && direction == 1023) {
    lcd.setCursor(0, 0);  lcd.print("Gear: Drive     ");
    lcd.setCursor(0, 1);  lcd.print("Direction: Right");
  }
  
  if(gear == 511 && direction == 511) {
    lcd.setCursor(0, 0);  lcd.print("Gear: Neutral   ");
    lcd.setCursor(0, 1);  lcd.print("No direction!   ");
  } 
  
  if(gear == 0 && direction == 511) {
    lcd.setCursor(0, 0);  lcd.print("Gear: Reverse");
    lcd.setCursor(0, 1);  lcd.print("                ");
  } if(gear == 0 && direction == 0) {
    lcd.setCursor(0, 0);  lcd.print("Gear: Reverse");
    lcd.setCursor(0, 1);  lcd.print("Direction: Left ");
  } if(gear == 0 && direction == 1023) {
    lcd.setCursor(0, 0);  lcd.print("Gear: Reverse");
    lcd.setCursor(0, 1);  lcd.print("Direction: Right");
  }
}