#include <Adafruit_NeoPixel.h>

#define LED_PIN 3
#define NUM_LEDS 64

Adafruit_NeoPixel matrix = Adafruit_NeoPixel(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  matrix.begin();
  matrix.show(); // Initialize all pixels to 'off'
  randomSeed(analogRead(0)); // Seed the random number generator
}

void loop() {
  chaseRow();
  chaseColumn();
}

void chaseRow() {
  for (int i = 0; i < NUM_LEDS; i++) {
    matrix.setPixelColor(i, random(256), random(256), random(256));
    matrix.show();
    delay(50);
    matrix.setPixelColor(i, 0, 0, 0);
  }
  for (int i = NUM_LEDS - 1; i >= 0; i--) {
    matrix.setPixelColor(i, random(256), random(256), random(256));
    matrix.show();
    delay(50);
    matrix.setPixelColor(i, 0, 0, 0);
  }
}

void chaseColumn() {
  for (int col = 0; col < 8; col++) {
    for (int row = 0; row < 8; row++) {
      int pixelIndex = col + row * 8;
      matrix.setPixelColor(pixelIndex, random(256), random(256), random(256));
    }
    matrix.show();
    delay(50);
    for (int row = 0; row < 8; row++) {
      int pixelIndex = col + row * 8;
      matrix.setPixelColor(pixelIndex, 0, 0, 0);
    }
  }
  for (int col = 7; col >= 0; col--) {
    for (int row = 0; row < 8; row++) {
      int pixelIndex = col + row * 8;
      matrix.setPixelColor(pixelIndex, random(256), random(256), random(256));
    }
    matrix.show();
    delay(50);
    for (int row = 0; row < 8; row++) {
      int pixelIndex = col + row * 8;
      matrix.setPixelColor(pixelIndex, 0, 0, 0);
    }
  }
}