// 
#include <Arduino.h>

//
#define JOYSTICK_X A0
#define JOYSTICK_Y A1

//
#define LED_PIN_1 2
#define LED_PIN_2 3
#define LED_PIN_3 4
#define LED_PIN_4 5
#define LED_PIN_5 6
#define LED_PIN_6 7
#define LED_PIN_7 8
#define LED_PIN_8 9

//
#define JOYSTICK_CENTER 512
#define JOYSTICK_THRESHOLD 100

void setup() {
  //
  pinMode(LED_PIN_1, OUTPUT);
  pinMode(LED_PIN_2, OUTPUT);
  pinMode(LED_PIN_3, OUTPUT);
  pinMode(LED_PIN_4, OUTPUT);
  pinMode(LED_PIN_5, OUTPUT);
  pinMode(LED_PIN_6, OUTPUT);
  pinMode(LED_PIN_7, OUTPUT);
  pinMode(LED_PIN_8, OUTPUT);
  
  // 
  Serial.begin(9600);
}

void loop() {
  // 
  int xValue = analogRead(JOYSTICK_X);
  int yValue = analogRead(JOYSTICK_Y);
  
  // 
  Serial.print("X: ");
  Serial.print(xValue);
  Serial.print(" Y: ");
  Serial.println(yValue);

  //
  if (xValue > JOYSTICK_CENTER + JOYSTICK_THRESHOLD) {
    digitalWrite(LED_PIN_1, HIGH);
  } else {
    digitalWrite(LED_PIN_1, LOW);
  }
  
  if (xValue < JOYSTICK_CENTER - JOYSTICK_THRESHOLD) {
    digitalWrite(LED_PIN_2, HIGH);
  } else {
    digitalWrite(LED_PIN_2, LOW);
  }
  
  if (yValue > JOYSTICK_CENTER + JOYSTICK_THRESHOLD) {
    digitalWrite(LED_PIN_3, HIGH);
  } else {
    digitalWrite(LED_PIN_3, LOW);
  }
  
  if (yValue < JOYSTICK_CENTER - JOYSTICK_THRESHOLD) {
    digitalWrite(LED_PIN_4, HIGH);
  } else {
    digitalWrite(LED_PIN_4, LOW);
  }
  
  // 
  if (xValue > JOYSTICK_CENTER + JOYSTICK_THRESHOLD && yValue > JOYSTICK_CENTER + JOYSTICK_THRESHOLD) {
    digitalWrite(LED_PIN_5, HIGH);
  } else {
    digitalWrite(LED_PIN_5, LOW);
  }
  
  if (xValue > JOYSTICK_CENTER + JOYSTICK_THRESHOLD && yValue < JOYSTICK_CENTER - JOYSTICK_THRESHOLD) {
    digitalWrite(LED_PIN_6, HIGH);
  } else {
    digitalWrite(LED_PIN_6, LOW);
  }
  
  if (xValue < JOYSTICK_CENTER - JOYSTICK_THRESHOLD && yValue > JOYSTICK_CENTER + JOYSTICK_THRESHOLD) {
    digitalWrite(LED_PIN_7, HIGH);
  } else {
    digitalWrite(LED_PIN_7, LOW);
  }
  
  if (xValue < JOYSTICK_CENTER - JOYSTICK_THRESHOLD && yValue < JOYSTICK_CENTER - JOYSTICK_THRESHOLD) {
    digitalWrite(LED_PIN_8, HIGH);
  } else {
    digitalWrite(LED_PIN_8, LOW);
  }

  //
  delay(100);
}