const int rowLED[] = {22, 23, 24, 25, 26, 27, 28, 29};
const int colLED[] = {37, 36, 35, 34, 33, 32, 31, 30};

int encoderCLK = 2;
int encoderDT = 3;
int encoderSW = 4;

int encoderCLKState = LOW;
int encoderCLKLastState = LOW;
int encoderDTState = LOW;

int currentX = 0;
int currentY = 0;
bool direction = true;  // true: ileri, false: geri

void setup() {
  for (int i = 0; i < 8; i++) {
    pinMode(rowLED[i], OUTPUT);
    pinMode(colLED[i], OUTPUT);
  }

  pinMode(encoderCLK, INPUT_PULLUP);
  pinMode(encoderDT, INPUT_PULLUP);
  pinMode(encoderSW, INPUT_PULLUP);

  Serial.begin(9600);
  drawLEDMatrix();
}

void setPixel(int x, int y) {
  digitalWrite(rowLED[y], HIGH);
  digitalWrite(colLED[x], LOW);
}

void clearPixel(int x, int y) {
  digitalWrite(rowLED[y], LOW);
  digitalWrite(colLED[x], HIGH);
}

void drawLEDMatrix() {
  for (int row = 0; row < 8; row++) {
    for (int col = 0; col < 8; col++) {
      clearPixel(col, row);
    }
  }
}

void loop() {
  encoderCLKState = digitalRead(encoderCLK);

  if (encoderCLKState != encoderCLKLastState) {
    if (digitalRead(encoderDT) != encoderCLKState) {
      if (direction) {
        clearPixel(currentX, currentY);
        currentX++;
        if (currentX >= 8) {
          currentX = 0;
          direction = !direction;
          currentY++;

          if (currentY >= 8) {
            currentY = 0;
          }
        }
        setPixel(currentX, currentY);
      } else {
        clearPixel(currentX, currentY);
        currentX--;
        if (currentX < 0) {
          currentX = 7;
          direction = !direction;
          currentY--;

          if (currentY < 0) {
            currentY = 7;
          }
        }
        setPixel(currentX, currentY);
      }
    }
  }

  encoderCLKLastState = encoderCLKState;

  if (digitalRead(encoderSW) == LOW) {
    // Enkoder düğmesine basıldığında hareket yönünü değiştir
    direction = !direction;
    delay(100); // Rötuş
  }
}