const int numButtons = 8;
int buttonPins[numButtons] = {19, 20, 18, 21, 5, 22, 16, 17};
int buttonNums[numButtons] = {1, 2, 3, 4, 5, 6, 7, 8};


void setup() {
  for (int i=0; i<numButtons; i++) {
    pinMode(buttonPins[i], INPUT_PULLUP);
  }
  Joystick.useManualSend(true);
}

void loop() {
  // read analog inputs and set X-Y position
  Joystick.X(analogRead(0));
  Joystick.Y(analogRead(1));

  // read the digital inputs and set the buttons
  for (int i=0; i<numButtons; i++) {
    Joystick.button(buttonNums[i], !digitalRead(buttonPins[i]));
  }

  Joystick.send_now();

  // a brief delay, so this runs 20 times per second
  delay(5);
}