#include <Adafruit_NeoPixel.h>

#define PIN 5           // GPIO pin connected to LED matrix data input
#define NUMPIXELS 256   // 8 x 32 = 256 LEDs

Adafruit_NeoPixel strip(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  strip.begin();
  strip.show(); // Initialize all pixels to 'off'
}

void loop() {
  rainbowCycle(20);

  // Customize colors here (R, G, B)
  colorWipe(strip.Color(255, 105, 180), 50);    // Hot pink wipe
  colorWipe(strip.Color(0, 255, 255), 50);      // Cyan wipe
  colorWipe(strip.Color(255, 140, 0), 50);      // Dark orange wipe

  theaterChase(strip.Color(0, 255, 127), 50);   // Spring green theater chase

  blinkColor(strip.Color(75, 0, 130), 5, 300);  // Indigo blink 5 times
}

// Generate rainbow colors across 0-255 positions
uint32_t Wheel(byte WheelPos) {
  WheelPos = 255 - WheelPos;
  if(WheelPos < 85) {
    return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
  }
  if(WheelPos < 170) {
    WheelPos -= 85;
    return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
  }
  WheelPos -= 170;
  return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}

// Rainbow cycle animation
void rainbowCycle(uint8_t wait) {
  uint16_t i, j;
  for(j=0; j<256; j++) {
    for(i=0; i<strip.numPixels(); i++) {
      strip.setPixelColor(i, Wheel((i * 256 / strip.numPixels() + j) & 255));
    }
    strip.show();
    delay(wait);
  }
}

// Color wipe animation: lights up LEDs one by one with a color
void colorWipe(uint32_t color, uint8_t wait) {
  for (int i = 0; i < strip.numPixels(); i++) {
    strip.setPixelColor(i, color);
    strip.show();
    delay(wait);
  }
}

// Theater chase animation: moving dots effect
void theaterChase(uint32_t color, uint8_t wait) {
  for (int j = 0; j < 10; j++) {  // cycle 10 times
    for (int q = 0; q < 3; q++) {
      for (int i = 0; i < strip.numPixels(); i += 3) {
        strip.setPixelColor(i + q, color); // turn every third pixel on
      }
      strip.show();
      delay(wait);
      for (int i = 0; i < strip.numPixels(); i += 3) {
        strip.setPixelColor(i + q, 0); // turn every third pixel off
      }
    }
  }
}

// Blink all LEDs with a color
void blinkColor(uint32_t color, uint8_t times, uint8_t wait) {
  for (int i = 0; i < times; i++) {
    strip.fill(color);
    strip.show();
    delay(wait);
    strip.clear();
    strip.show();
    delay(wait);
  }
}