#include <FastLED.h>

#define LED_PIN     6
#define NUM_LEDS    34
#define BRIGHTNESS  64
#define LED_TYPE    WS2812B
#define COLOR_ORDER GRB
CRGB leds[NUM_LEDS];

// Function declarations
void rainbowCycle(int speedDelay);
void colorWipe(CRGB color, int speedDelay);
void theaterChase(CRGB color, int speedDelay);
void blink(CRGB color, int speedDelay);
void runningLights(CRGB color, int waveDelay);
void twinkle(int speedDelay);
void fade(CRGB color, int fadeAmount);
void strobe(CRGB color, int speedDelay);
void wave(CRGB color, int waveDelay);
void sparkle(CRGB color, int speedDelay);
void fire(int cooling, int sparking, int speedDelay);

void setup() {
  FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  
}

void loop() {
  rainbowCycle(10);
  colorWipe(CRGB::Red, 50);
  theaterChase(CRGB::Blue, 50);
  blink(CRGB::Green, 500);
  runningLights(CRGB::Yellow, 50);
  twinkle(100);
  fade(CRGB::Purple, 5);
  strobe(CRGB::White, 100);
  wave(CRGB::Orange, 50);
  sparkle(CRGB::Aqua, 100);
  fire(55, 120, 15);
}

// Pattern implementations

void rainbowCycle(int speedDelay) {
  for(long firstHue = 0; firstHue < 256*5; firstHue += 1) {
    for(int i = 0; i < NUM_LEDS; i++) {
      leds[i] = CHSV((firstHue + i * 256 / NUM_LEDS) & 255, 255, 255);
    }
    FastLED.show();
    delay(speedDelay);
  }
}

void colorWipe(CRGB color, int speedDelay) {
  for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = color;
    FastLED.show();
    delay(speedDelay);
  }
  for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CRGB::Black;
    FastLED.show();
    delay(speedDelay);
  }
}

void theaterChase(CRGB color, int speedDelay) {
  for (int j = 0; j < 10; j++) {
    for (int q = 0; q < 3; q++) {
      for (int i = 0; i < NUM_LEDS; i = i + 3) {
        leds[i+q] = color;
      }
      FastLED.show();
      delay(speedDelay);
      for (int i = 0; i < NUM_LEDS; i = i + 3) {
        leds[i+q] = CRGB::Black;
      }
    }
  }
}

void blink(CRGB color, int speedDelay) {
  fill_solid(leds, NUM_LEDS, color);
  FastLED.show();
  delay(speedDelay);
  fill_solid(leds, NUM_LEDS, CRGB::Black);
  FastLED.show();
  delay(speedDelay);
}

void runningLights(CRGB color, int waveDelay) {
  for (int j = 0; j < NUM_LEDS*2; j++) {
    for (int i = 0; i < NUM_LEDS; i++) {
      leds[i] = color * ((sin(i + j) * 127 + 128) / 255.0);
    }
    FastLED.show();
    delay(waveDelay);
  }
}

void twinkle(int speedDelay) {
  fill_solid(leds, NUM_LEDS, CRGB::Black);
  for (int i = 0; i < 8; i++) {
    leds[random(NUM_LEDS)] = CRGB::White;
    FastLED.show();
    delay(speedDelay);
    fill_solid(leds, NUM_LEDS, CRGB::Black);
  }
}

void fade(CRGB color, int fadeAmount) {
  fill_solid(leds, NUM_LEDS, color);
  FastLED.show();
  for (int i = 0; i < 255; i++) {
    fill_solid(leds, NUM_LEDS, color.nscale8_video(255 - i));
    FastLED.show();
    delay(fadeAmount);
  }
  for (int i = 255; i >= 0; i--) {
    fill_solid(leds, NUM_LEDS, color.nscale8_video(255 - i));
    FastLED.show();
    delay(fadeAmount);
  }
}

void strobe(CRGB color, int speedDelay) {
  fill_solid(leds, NUM_LEDS, color);
  FastLED.show();
  delay(speedDelay);
  fill_solid(leds, NUM_LEDS, CRGB::Black);
  FastLED.show();
  delay(speedDelay);
}

void wave(CRGB color, int waveDelay) {
  for (int i = 0; i < NUM_LEDS; i++) {
    leds[i] = color * (sin(i) * 127 + 128) / 255.0;
  }
  FastLED.show();
  delay(waveDelay);
}

void sparkle(CRGB color, int speedDelay) {
  int pos = random(NUM_LEDS);
  leds[pos] = color;
  FastLED.show();
  delay(speedDelay);
  leds[pos] = CRGB::Black;
  FastLED.show();
  delay(speedDelay);
}

void fire(int cooling, int sparking, int speedDelay) {
  static byte heat[NUM_LEDS];
  for (int i = 0; i < NUM_LEDS; i++) {
    heat[i] = qsub8(heat[i], random(0, ((cooling * 10) / NUM_LEDS) + 2));
  }
  for (int k = NUM_LEDS - 1; k >= 2; k--) {
    heat[k] = (heat[k - 1] + heat[k - 2] + heat[k - 2]) / 3;
  }
  if (random(255) < sparking) {
    int y = random(7);
    heat[y] = qadd8(heat[y], random(160, 255));
  }
  for (int j = 0; j < NUM_LEDS; j++) {
    CRGB color = HeatColor(heat[j]);
    int pixelnumber = (NUM_LEDS - 1) - j;
    leds[pixelnumber] = color;
  }
  FastLED.show();
  delay(speedDelay);
}