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

#define TFT_CS     10
#define TFT_DC     9

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);

const int buttonIncPin = 2;
const int buttonDecPin = 3;

int count = 0;
bool buttonIncState = HIGH;
bool buttonDecState = HIGH;

void setup() {
  pinMode(buttonIncPin, INPUT_PULLUP);
  pinMode(buttonDecPin, INPUT_PULLUP);

  tft.begin();
  tft.setRotation(3);
  tft.fillScreen(ILI9341_BLACK);
  tft.setTextSize(3);
  tft.setTextColor(ILI9341_WHITE);
  displayCount();
}

void loop() {
  if (digitalRead(buttonIncPin) == LOW) {
    if (buttonIncState == HIGH) {
      count++;
      displayCount();
    }
    buttonIncState = LOW;
  } else {
    buttonIncState = HIGH;
  }

  if (digitalRead(buttonDecPin) == LOW) {
    if (buttonDecState == HIGH) {
      count--;
      displayCount();
    }
    buttonDecState = LOW;
  } else {
    buttonDecState = HIGH;
  }
}

void displayCount() {
  // tft.fillRect(0, 0, tft.width(), tft.height(), ILI9341_BLACK);
  tft.setCursor(50, 50);
  tft.print(count);
}