//we wish you a merry christmas xylophone from 1:10-1:43

// use the FastLED library (someone's pre-written code)
#include <FastLED.h>

// set how many LEDs there are and the data pin.
const int NUM_LEDS = 30;
const int DATA_PIN = 6;

// this creates an array to reference our LEDs
CRGB leds[NUM_LEDS];

void setup() {
  // tells the FastLED code e.g. what LEDs we are using, the data pin
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);

  // limit the strip's draw to 400mA at 5v
  FastLED.setMaxPowerInVoltsAndMilliamps(5, 400);

  // turns the brightness down (so my eyes don't hurt)
  FastLED.setBrightness(8);

  pinMode(2, INPUT_PULLUP);
}

void loop() {
  if (digitalRead(2) == LOW) {
    lightShow();
  }
}


void lightShow() {

  //first round (glissando from left to right)

  //we wish
  for (int light = 0; light < 15; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 15; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  //you a merry
  for (int light = 0; light < 30; light++) {
    leds[light].setRGB(random(255), random(255), random(255));
    FastLED.show();
    delay(25);
  }
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  //christmas
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();

  //second round (glissando from right to left)

  //we wish
  for (int light = 0; light < 15; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 15; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  //you a merry
  for (int light = 29; light > 1; light--) {
    leds[light].setRGB(random(255), random(255), random(255));
    FastLED.show();
    delay(25);
  }
  for (int light = 29; light < 1; light--) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  //christmas
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();

  //third round (glissando from start and end)

  //we wish
  for (int light = 0; light < 15; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 15; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  //you a merry
  for (int light = 0; light < 15; light++) {
    leds[light].setRGB(random(255), random(255), random(255));
    leds[29 - light].setRGB(random(255), random(255), random(255));
    FastLED.show();
    delay(50);
  }
  for (int light = 29; light < 1; light--) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  //christmas
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  //and a
  leds[10] = CRGB::Blue;
  FastLED.show();
  delay(259);
  leds[20] = CRGB::Blue;
  FastLED.show();
  delay(259);
  //happy new year
  for (int light = 0; light < 10; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 10; light < 20; light++) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);
  for (int light = 20; light < 30; light++) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(518);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();

  //bells begin

  for (int light = 0; light < 30; light += 2) {
    leds[light] = CRGB::Red;
    leds[light + 1] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);
  for (int light = 0; light < 30; light += 2) {
    leds[light + 1] = CRGB::Red;
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);

  for (int light = 0; light < 30; light += 2) {
    leds[light] = CRGB::Red;
    leds[light + 1] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);
  for (int light = 0; light < 30; light += 2) {
    leds[light + 1] = CRGB::Red;
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);

  for (int light = 0; light < 30; light += 2) {
    leds[light] = CRGB::Red;
    leds[light + 1] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);
  for (int light = 0; light < 30; light += 2) {
    leds[light + 1] = CRGB::Red;
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);

  for (int light = 0; light < 30; light += 2) {
    leds[light] = CRGB::Red;
    leds[light + 1] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);
  for (int light = 0; light < 30; light += 2) {
    leds[light + 1] = CRGB::Red;
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);

  for (int light = 0; light < 30; light += 2) {
    leds[light] = CRGB::Red;
    leds[light + 1] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);
  for (int light = 0; light < 30; light += 2) {
    leds[light + 1] = CRGB::Red;
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);

  for (int light = 0; light < 30; light += 2) {
    leds[light] = CRGB::Red;
    leds[light + 1] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);
  for (int light = 0; light < 30; light += 2) {
    leds[light + 1] = CRGB::Red;
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);

  for (int light = 0; light < 30; light += 2) {
    leds[light] = CRGB::Red;
    leds[light + 1] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);
  for (int light = 0; light < 30; light += 2) {
    leds[light + 1] = CRGB::Red;
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(259);

  //bells end

  //fourth round
  //we wish
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();

  leds[1] = CRGB::Red;
  FastLED.show();
  delay(388);
  leds[1] = CRGB::Black;
  FastLED.show();

  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  delay(750);
  //you a merry christmas
  for (int light = 20; light < 30; light++) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);
  for (int light = 20; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 20; light < 30; light++) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);
  for (int light = 20; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();

  //fifth round
  //we wish
  leds[1] = CRGB::Blue;
  FastLED.show();
  delay(388);
  leds[1] = CRGB::Black;
  FastLED.show();

  FastLED.show();
  for (int light = 20; light < 30; light++) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);
  for (int light = 20; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  delay(750);
  //you a merry christmas
  for (int light = 10; light < 20; light++) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);
  for (int light = 10; light < 20; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 10; light < 20; light++) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);
  for (int light = 10; light < 20; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();


  //sixth round
  leds[1] = CRGB::Green;
  FastLED.show();
  delay(388);
  leds[1] = CRGB::Black;
  FastLED.show();

  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);
  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  delay(750);
  //you a merry christmas
  for (int light = 0; light < 10; light++) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 10; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 0; light < 10; light++) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 10; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  //and a
  leds[10] = CRGB::Blue;
  FastLED.show();
  delay(259);
  leds[20] = CRGB::Blue;
  FastLED.show();
  delay(259);
  //happy new year
  for (int light = 0; light < 10; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 10; light < 20; light++) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);
  for (int light = 20; light < 30; light++) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(2072);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();

  //Part C
  leds[1] = CRGB::Red;
  FastLED.show();
  delay(388);
  leds[1] = CRGB::Black;
  FastLED.show();

  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::White;
    FastLED.show();
    delay(25);
  }
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();

  leds[29] = CRGB::Red;
  FastLED.show();
  delay(388);
  leds[1] = CRGB::Black;
  FastLED.show();

  for (int light = 29; light > -1; light--) {
    leds[light] = CRGB::White;
    FastLED.show();
    delay(25);
  }

  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();

  leds[1] = CRGB::Red;
  FastLED.show();
  delay(388);
  leds[1] = CRGB::Black;
  FastLED.show();

  for (int light = 29; light > 20; light--) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);

  for (int light = 20; light > 10; light--) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);

  for (int light = 10; light > -1; light--) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);

  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Gold;
  }
  FastLED.show();
  delay(750);

  //we wish
  for (int light = 0; light < 15; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 15; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 15; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  //you a merry
  for (int light = 0; light < 15; light++) {
    leds[light].setRGB(random(255), random(255), random(255));
    leds[29 - light].setRGB(random(255), random(255), random(255));
    FastLED.show();
    delay(50);
  }
  for (int light = 29; light < 1; light--) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  //christmas
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Black;
  }
  FastLED.show();
  //and a
  leds[10] = CRGB::Blue;
  FastLED.show();
  delay(259);
  leds[20] = CRGB::Blue;
  FastLED.show();
  delay(259);
  //happy new year
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Red;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Green;
  }
  FastLED.show();
  delay(388);
  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Blue;
  }
  FastLED.show();
  delay(388);

  for (int light = 0; light < 30; light++) {
    leds[light] = CRGB::Gold;
  }
  FastLED.show();
}