color_Glam FASTLed users

#include "FastLED.h"
#define NUM_LED 10
CRGB leds[NUM_LED];

double LEDalpha[NUM_LED];
int LEDaction[NUM_LED];
int LEDtimer[NUM_LED];

int fxLoop;
boolean noColor = 0;
byte hue;
unsigned int loopCount;

void setup(){
}

void loop(){
  color_change_glam(1000, 3, 25, 500, 10000);
}

void color_change_glam( int HUEframeRate, byte colorIncrement, byte fadeTimer, int randomCancel, int whiteDuration ) {
  randomSeed(0);  //creates pseudo-random sequence that repeat exactly
  fxLoop++;
  for(byte iLed = 0; iLed < NUM_LED; iLed++) {
    switch(LEDaction[iLed]){
      //action
      //nothin
    case 0:
      {
        if (LEDtimer[iLed] == -1){
          if (LEDalpha[iLed] == 0){
            switch(random(2)){
            case 0:
              LEDtimer[iLed] = random(fadeTimer);
              break;   //set timer
            case 1:
              LEDaction[iLed] = 1;
              break;
            }
          }        //appear

          else if (LEDalpha[iLed] > 0){
            switch(random(2)){
            case 0:
              LEDtimer[iLed] = random(fadeTimer);
              break;      //set timer
            case 1:
              LEDaction[iLed] = 2;
              break;
            }
          }          //disappear
        }
        //count down timer
        else {
          if (LEDtimer[iLed] != -1){
            LEDtimer[iLed]--;
          }
        }
      }
      break;

      //action
      //appear
    case 1:
      {
        LEDalpha[iLed] += 0.002;
        if(LEDalpha[iLed] >= 1){
          LEDalpha[iLed] = 1;
          LEDaction[iLed] = 0;
          LEDtimer[iLed] = -1;
        } //is appeared
        byte a = 1;
        if(a == random(randomCancel)){
          LEDaction[iLed] = 0;
          LEDtimer[iLed] = -1;
        }
      } //randomly cancel
      break;

      //action
      //disappear
    case 2:
      {
        LEDalpha[iLed] -= 0.005;
        if(LEDalpha[iLed] <= 0){
          LEDaction[iLed] = 0;
          LEDalpha[iLed] = 0;
          LEDtimer[iLed] = -1;
        } //is disappeared
        byte a = 1;
        if(a == random(randomCancel)){
          LEDaction[iLed] = 0;
          LEDtimer[iLed] = -1;
        }
      }  //randomly cancel
      break;
    }

    double a = LEDalpha[iLed] * 255;

    switch(noColor){
    case 0:
      leds[iLed] = CHSV(hue, 255, a);
      break;
    case 1:
      leds[iLed] = CHSV(hue, 0, a);
      break;
    }
  }

  LEDS.show();
  if(fxLoop > whiteDuration) {
    noColor = !noColor;
    fxLoop = 0;
  }
  if(loopCount++ > HUEframeRate){
    hue = hue + colorIncrement;
    loopCount = 0;
  }
}