const int pinX = A0; // ось X джойстика
const int pinY = A1; // ось Y джойстика
const int pinButton = 2;

int lastButton = LOW; //предыдущее состояние кнопки
int curButton = LOW; //Текущее состояние кнопки

const int leds[] = {11, 10, 9, 6, 5, 3};

const int indexLedMax = 5;
const int indexLedMin = 0;
int indexLedActive = 0;

const int ledBrightMax = 250;
const int ledBrightMin = 0;
int ledBright = 0;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  for (int i = 0; i < indexLedMax + 1; ++i)
  {
    pinMode(leds[i], OUTPUT);
  }

  pinMode(pinX, INPUT);
  pinMode(pinY, INPUT);
  pinMode(pinButton, INPUT);
}

int debounce (int last)
{
  int current = digitalRead(pinButton);
  if (last != current) //если состояние изменилось
  {
    delay(5);
    current = digitalRead(pinButton);
  }
  return current;
}

void changeLedActive(const int& x)
{
  Serial.println(indexLedActive);
  if (x < 127)
  {
    ++indexLedActive;
    if (indexLedActive > indexLedMax)
    {
      indexLedActive = indexLedMax;
    }
  }
  else if (x > 127)
  {
    --indexLedActive;
    if (indexLedActive < indexLedMin)
    {
      indexLedActive = indexLedMin;
    }
  }
}

void changeLedBright(const int& y)
{
  if (y > 127)
  {
    ledBright += 10;
    if (ledBright > ledBrightMax)
    {
      ledBright = ledBrightMax;
    }
  }
  else if (y < 127)
  {
    ledBright -= 10;
    if (ledBright < ledBrightMin)
    {
      ledBright = ledBrightMin;
    }
  }
}

void loop() {
  // put your main code here, to run repeatedly:
  int x = analogRead(pinX);
  int y = analogRead(pinY);

  x = map(x, 0, 1023, 0, 255);
  y = map(y, 0, 1023, 0, 255);

  changeLedActive(x);
  changeLedBright(y);
  curButton = debounce (lastButton);
  if (lastButton == HIGH && curButton == LOW) //условие нажатия
  {
    indexLedActive = indexLedMin;
  }

  lastButton = curButton;
  for (int i = 0; i < indexLedMax + 1; ++i)
  {
    if (indexLedActive == i)
    {
      analogWrite(leds[indexLedActive], ledBright);
    }
    else
    {
      analogWrite(leds[i], ledBrightMin);
    }
  }

  delay(100);

}