Arduino Christmas rainbow lights

wave.ino

#include "FastLED.h"

#define DATA_PIN 3
#define CLOCK_PIN 13

#define kMatrixWidth 150
#define kMatrixHeight 1
#define NUM_LEDS (kMatrixWidth * kMatrixHeight)

CRGB leds[kMatrixWidth * kMatrixHeight];

int ledPeriod;
int ledIntensity;
float blinkyBlinkyOffset[kMatrixWidth * kMatrixHeight];
int blinkyBlinkyShineAddress[20];
int blinkyBlinkyShineLeft[20];
int blinkyBlinkyShineInitial[20];
int blinkyBlinkyCount;
int blinkyBlinkyPeriod;
int blinkyBlinkyShines = 5;
int blinkyBlinkyShineIntensity = 100;


void setup() {
  Serial.begin(9600);
  while(!Serial){}
  
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
 
  blinkyBlinkyConfigWave();
}

int blinkyBlinkyGetValue(int id, int count, int indexOffset, int lSV, int lST) {
  int componentOffset;
  switch(indexOffset) {
    case 0:  
        componentOffset = 0;
    break;
    case 1: 
        componentOffset = 2.09;
    break;
    case 2: 
        componentOffset = 4.18;
    break;
  }
  
  int componentValue =  (sin((count%ledPeriod/(float)ledPeriod)*2*3.14+componentOffset+blinkyBlinkyOffset[id])+1)/2*ledIntensity;
  
  return lSV/(float)lST*blinkyBlinkyShineIntensity + (lST-lSV)/(float)lST* componentValue;
}

void blinkyBlinkyConfigLed(int id) {
  int lSV = 0;
  int lST = 1;
  
  for(int i =0; i<blinkyBlinkyShines; i++) {
    if(blinkyBlinkyShineAddress[i] > id) 
     break;
    if(blinkyBlinkyShineAddress[i]==id) {
     lSV = blinkyBlinkyShineLeft[i];
     lST = blinkyBlinkyShineInitial[i];
     blinkyBlinkyShineLeft[i]--;
     break;
    }
  }
  
  leds[id] = CRGB(blinkyBlinkyGetValue(id, blinkyBlinkyCount, 0, lSV, lST), blinkyBlinkyGetValue(id, blinkyBlinkyCount,1, lSV, lST), blinkyBlinkyGetValue(id, blinkyBlinkyCount, 2, lSV, lST));
}

void blinkyBlinkyConfigWave() {
  blinkyBlinkyCount = 0;
  blinkyBlinkyPeriod = 5000;
  ledIntensity = 30;
  ledPeriod = 10;
  
  for (int i = 0; i < kMatrixWidth; i++) {    
    for (int j = 0; j < kMatrixHeight; j++) {
      blinkyBlinkyOffset[(j*kMatrixWidth) + i] = (j*kMatrixWidth + i)/(float)(kMatrixHeight*kMatrixWidth)*3.14*30;
    }
  }  
  
  int intervalCount = NUM_LEDS/blinkyBlinkyShines;
  for(int i =0; i< blinkyBlinkyShines; i++) {
    blinkyBlinkyShineAddress[i] = i*intervalCount+ random(intervalCount);
    blinkyBlinkyShineLeft[i]= 3+random(10);
    blinkyBlinkyShineInitial[i] =  blinkyBlinkyShineLeft[i];
  }
}

void loop() {
    blinkyBlinkyCount += 1; 

  if(blinkyBlinkyCount == blinkyBlinkyPeriod) {
    blinkyBlinkyCount = 0;
  }
  
  for (int i = 0; i < kMatrixWidth; i++) {    
    for (int j = 0; j < kMatrixHeight; j++) {
      blinkyBlinkyConfigLed((j*kMatrixWidth) + i);
    }
  }    
  
    int intervalCount = NUM_LEDS/blinkyBlinkyShines;

  for(int i =0; i< blinkyBlinkyShines; i++) {
    if(blinkyBlinkyShineLeft[i] == 0) {
      blinkyBlinkyShineAddress[i] = i*intervalCount+ random(intervalCount);
      blinkyBlinkyShineLeft[i]= 3+random(10);
      blinkyBlinkyShineInitial[i] = blinkyBlinkyShineLeft[i];
    }
  }

  FastLED.show();
}