Thumbstick code for arduino

Thumbstick.ino

const int thumbstick_pin = 8;
const int X_pin = A0;       // Plug thumbstick X direction into pin A0
const int Y_pin = A1;       // Plug thumbstick Y direction into pin A1
int xc;
int yc;
int TSButton;

void setup() {
  for (int i = 0; i < 2; i++) {
    pinMode(thumbstick_pin, INPUT);
  }
  
  Serial.begin(115200);
}

void loop() {
  int x = analogRead(X_pin) - 517;  // Read x direction value and -517 to bring back to around 0
  int y = analogRead(Y_pin) - 512;  // Read y direction value and -512 to bring back to around 0

  if (x <-10) {         // Thumbstick has off set of +/-8 so this negates that
    xc = 0;             // Turn analogue value into integer. 0, 1 or 2 depending on state
  } else if (x >10) {   
    xc = 2;
  } else {
    xc = 1;
  }

  if (y <-10) {
    yc = 0;
  } else if (y >10) {
    yc = 2;
  } else {
    yc = 1;
  }

  int buttonStates = 0;

  Serial.print("S");  // Start printing the data, format is Sxc,yc,buttonStates > S1,1,0
  Serial.print(xc);
  Serial.print(",");
  Serial.print(yc);
  Serial.print(",");
  Serial.println((buttonStates));

  delay(40);

}