8 Way Rotary Switch

#include <FastLED.h>

#define NUM_LEDS 30
#define DATA_PIN 6
#define LED_TYPE WS2812B
#define COLOR_ORDER GRB
#define ARRAY_SIZE(A) (sizeof(A) / sizeof((A)[0]))
#define FRAMES_PER_SECOND 120

CRGB leds[NUM_LEDS];

uint8_t ButtonPins[] = {0,2};
uint8_t pinCount = 2;
uint8_t *myPointer;


void setup() {

  FastLED.addLeds<LED_TYPE,DATA_PIN,COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);
  FastLED.setBrightness(50);

  for(uint8_t x = 0; x<pinCount; x++)
    {
      pinMode(ButtonPins[x], INPUT_PULLUP);
    }

  Serial.begin(9600);

}

typedef void (*SimplePatternList[])();
SimplePatternList gPatterns = { rainbow, confetti, sinelon, juggle, bpm };

uint8_t gCurrentPatternNumber = 0; // Index number of which pattern is current
uint8_t gHue = 0; // rotating "base color" used by many of the patterns

void loop() {

  for(uint8_t x =0; x<pinCount; x++)
  {
    ButtonPins[x] = digitalRead(x);
  }

  for(uint8_t pin = 0; pin < pinCount; pin++)
  {
    myPointer = &ButtonPins[pin];
    if (*myPointer == 0)
      {
        gPatterns[pin]();
      }
  }
  FastLED.show();
  Serial.print(*myPointer);
  Serial.println();
  FastLED.delay(1000/FRAMES_PER_SECOND);
  EVERY_N_MILLISECONDS( 20 ) { gHue++; }
}


void rainbow()
{
  // FastLED's built-in rainbow generator
  fill_rainbow( leds, NUM_LEDS, gHue, 5);
}

void rainbowWithGlitter()
{
  // built-in FastLED rainbow, plus some random sparkly glitter
  rainbow();
  addGlitter(80);
}

void addGlitter( fract8 chanceOfGlitter)
{
  if( random8() < chanceOfGlitter) {
    leds[ random16(NUM_LEDS) ] += CRGB::White;
  }
}

void confetti()
{
  // random colored speckles that blink in and fade smoothly
  fadeToBlackBy( leds, NUM_LEDS, 10);
  int pos = random16(NUM_LEDS);
  leds[pos] += CHSV( gHue + random8(64), 200, 255);
}

void sinelon()
{
  // a colored dot sweeping back and forth, with fading trails
  fadeToBlackBy( leds, NUM_LEDS, 20);
  int pos = beatsin16( 13, 0, NUM_LEDS-1 );
  leds[pos] += CHSV( gHue, 255, 192);
}

void bpm()
{
  // colored stripes pulsing at a defined Beats-Per-Minute (BPM)
  uint8_t BeatsPerMinute = 62;
  CRGBPalette16 palette = PartyColors_p;
  uint8_t beat = beatsin8( BeatsPerMinute, 64, 255);
  for( int i = 0; i < NUM_LEDS; i++) { //9948
    leds[i] = ColorFromPalette(palette, gHue+(i*2), beat-gHue+(i*10));
  }
}

void juggle() {
  // eight colored dots, weaving in and out of sync with each other
  fadeToBlackBy( leds, NUM_LEDS, 20);
  byte dothue = 0;
  for( int i = 0; i < 8; i++) {
    leds[beatsin16( i+7, 0, NUM_LEDS-1 )] |= CHSV(dothue, 200, 255);
    dothue += 32;
  }
}