#include <Adafruit_NeoPixel.h>

// Define the number of pixels and the data pin
#define NUM_PIXELS 320
#define DATA_PIN 2

// Create a NeoPixel strip object
Adafruit_NeoPixel strip(NUM_PIXELS, DATA_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  // Initialize the NeoPixel strip
  strip.begin();
  strip.show(); // Turn off all pixels
}

void loop() {
  // Color transitions inspired by Beacon of Magic
  colorWipe(strip.Color(255, 0, 0), 50); // Red
  sparkle(255, 255, 255, 100, 50); // White sparkle
  colorWipe(strip.Color(0, 255, 0), 50); // Green
  sparkle(255, 255, 255, 100, 50); // White sparkle
  colorWipe(strip.Color(0, 0, 255), 50); // Blue
  sparkle(255, 255, 255, 100, 50); // White sparkle
  colorWipe(strip.Color(255, 255, 0), 50); // Yellow
  sparkle(255, 255, 255, 100, 50); // White sparkle
  colorWipe(strip.Color(0, 255, 255), 50); // Cyan
  sparkle(255, 255, 255, 100, 50); // White sparkle
  colorWipe(strip.Color(255, 0, 255), 50); // Magenta
  sparkle(255, 255, 255, 100, 50); // White sparkle
  colorWipe(strip.Color(255, 255, 255), 50); // White
}

// Function to fill the strip with a color, one pixel at a time
void colorWipe(uint32_t color, int wait) {
  for (int i = 0; i < strip.numPixels(); i++) {
    strip.setPixelColor(i, color);
    strip.show();
    delay(wait);
  }
}

// Function to create a sparkling effect
void sparkle(byte red, byte green, byte blue, int numSparks, int wait) {
  for (int i = 0; i < numSparks; i++) {
    // Randomly select a pixel
    int pixel = random(0, strip.numPixels());
    // Set the pixel color
    strip.setPixelColor(pixel, strip.Color(red, green, blue));
    // Show the updated pixel color
    strip.show();
    // Wait for a short duration
    delay(wait);
    // Turn off the pixel
    strip.setPixelColor(pixel, strip.Color(0, 0, 0));
    strip.show();
  }
}