#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>

// Define pins for the Arduino Mega and joystick
#define TFT_CS     53
#define TFT_RST    8
#define TFT_DC     9
#define JOYSTICK_X A0
#define JOYSTICK_Y A1
#define JOYSTICK_SW 7

// Create an Adafruit ILI9341 object
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);

// Initial cursor position
int cursorX = 10;
int cursorY = 10;

void setup() {
  Serial.begin(9600);  // Initialize serial communication for debugging

  tft.begin();  // Initialize the display
  tft.setRotation(0);  // Set display rotation to vertical (0 or 2)
  tft.fillScreen(ILI9341_BLACK);  // Fill the screen with black
  tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK);  // Set text color and background
  tft.setTextSize(2);  // Set text size

  pinMode(JOYSTICK_SW, INPUT_PULLUP);  // Set joystick button pin as input with pull-up
  drawInitialText();  // Draw initial text
}

void loop() {
  int xValue = analogRead(JOYSTICK_X);  // Read X-axis value
  int yValue = analogRead(JOYSTICK_Y);  // Read Y-axis value
  bool buttonPressed = digitalRead(JOYSTICK_SW) == LOW;  // Check if button is pressed

  // Map joystick values to screen coordinates
  cursorX = map(xValue, 0, 1023, 0, tft.width());
  cursorY = map(yValue, 0, 1023, 0, tft.height());

  // Clear the screen and update text position
  tft.fillScreen(ILI9341_BLACK);
  tft.setCursor(cursorX, cursorY);
  tft.println("Vehicle");
  tft.setCursor(cursorX, cursorY + 30);  // Adjust vertical spacing for the next line
  tft.println("Monitoring");

  delay(100);  // Small delay to avoid flickering
}

void drawInitialText() {
  tft.setCursor(cursorX, cursorY);
  tft.println("Vehicle");
  tft.setCursor(cursorX, cursorY + 30);  // Adjust vertical spacing for the next line
  tft.println("Monitoring");
}