#include <XInput.h>

/* 6.200 Gamepad */

const int numButtons = 8;
int buttonPins[numButtons] = {19, 20, 18, 21, 5, 22, 16, 17};
int buttonNames[numButtons] = {BUTTON_A, BUTTON_B, BUTTON_X, BUTTON_Y, BUTTON_LB, BUTTON_RB, BUTTON_BACK, BUTTON_START};


void setup() {
  for (int i=0; i<numButtons; i++) {
    pinMode(buttonPins[i], INPUT_PULLUP);
  }
  XInput.setAutoSend(false);
  XInput.setRange(JOY_LEFT, 0, 1023);
  XInput.begin();
}

void loop() {
  // read 6 analog inputs and use them for the joystick axis
  XInput.setJoystick(JOY_LEFT, analogRead(0), analogRead(1));

  for (int i=0; i<numButtons; i++) {
    XInput.setButton(buttonNames[i], !digitalRead(buttonPins[i]));
  }

  XInput.send();

  // a brief delay, so this runs "only" 200 times per second
  delay(5);
}