#include <Adafruit_ILI9341.h>
#include <SPI.h>

#define TFT_CS 10  // TFT chip select pin
#define TFT_DC 9   // TFT data/command pin
#define TFT_RST 8  // TFT reset pin

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);

const int ballRadius = 10;
const int screenWidth = 320;
const int screenHeight = 240;

void setup() {
  Serial.begin(115200);

  tft.begin();
  tft.setRotation(3); // Adjust the screen rotation if needed

  tft.fillScreen(ILI9341_BLACK); // Clear the screen to black
}

void loop() {
  // Initial position of the ball
  int x = screenWidth / 2;
  int y = screenHeight / 2;

  // Initial movement direction
  int directionX = 1;

  // Speed of the animation
  int speed = 3;

  // Animation loop
  while (true) {
    // Erase the previous frame by drawing a black ball over it
    tft.fillCircle(x, y, ballRadius, ILI9341_BLACK);

    // Update the position of the ball
    x += speed * directionX;

    // Check for collisions with the screen edges
    if (x <= ballRadius || x >= (screenWidth - ballRadius)) {
      // Change the direction when the ball hits the edges
      directionX = -directionX;
    }

    // Draw the ball at the updated position
    tft.fillCircle(x, y, ballRadius, ILI9341_GREEN);

    // Delay to control the animation speed
    delay(30);
  }
}