/*
  Forum:https://forum.arduino.cc/t/joystick-and-led/1201691
  Wokwi:https://wokwi.com/projects/384488613015669761

*/

constexpr byte joystick_x = A0;
constexpr byte joystick_y = A1;
constexpr byte noOfLeds {5};
constexpr byte xAxisPins[noOfLeds] = {3, 4, 5,  6,  7};
constexpr byte yAxisPins[noOfLeds] = {8, 9, 5, 10, 11};

constexpr unsigned long INTERVAL {200};  // Every 200 ms (1/5 th of a second) update of the led cross
unsigned long lastUpdate = 0;

int valueX;
int valueY;
int ledX;
int ledY;

void setup()
{
  for (int i = 0; i < noOfLeds; i++ ) {
    pinMode(xAxisPins[i], OUTPUT);
    pinMode(yAxisPins[i], OUTPUT);
  }
  Serial.begin(9600);
}

void loop() {
  if (millis() - lastUpdate > INTERVAL) {
    lastUpdate = millis();
    valueX = analogRead(A0);
    valueY = analogRead(A1);
    ledX = map(valueX, 0, 1024, 0, 5);
    ledY = map(valueY, 0, 1024, 0, 5);
    setLeds(ledX, ledY);
    printData();
  }
}

void setLeds(byte lx, byte ly) {
  for (int i = 0; i < noOfLeds; i++ ) {
    digitalWrite(xAxisPins[i], i == lx ? HIGH : LOW);
    digitalWrite(yAxisPins[i], i == ly ? HIGH : LOW);
  }
  if (lx == 2 || ly == 2) {
    digitalWrite(xAxisPins[2], HIGH);
  }
}

void printData() {
  Serial.print("VRx : ");
  Serial.print(valueX);
  Serial.print(" ");
  Serial.print("VRy : ");
  Serial.println(valueY);
  Serial.print("Led X : ");
  Serial.print(ledX);
  Serial.print(" ");
  Serial.print("Led Y : ");
  Serial.println(ledY);
}