#include <FastLED.h>
#include <Adafruit_NeoPixel.h>
#define NUM_LEDS 32
#define DATA_PIN 2
    #define CIELPWM(a) (pgm_read_word_near(CIEL8 + a)) // CIE Lightness loopup table
#ifdef __AVR__
  #include <avr/power.h>
#endif
    CRGB leds[NUM_LEDS];
uint8_t ledctr = 0;
int vals[] = {
0,    1,    2,    3,    4,    5,    7,    9,    12,
15,    18,    22,    27,    32,    38,    44,    51,    58,
67,    76,    86,    96,    108,    120,    134,    148,    163,
180,    197,    216,    235,    255
 };
void setup() {
  // put your setup code here, to run once:
  // This is for Trinket 5V 16MHz, you can remove these three lines if you are not using a Trinket
  #if defined (__AVR_ATtiny85__)
    if (F_CPU == 16000000) clock_prescale_set(clock_div_1);
  #endif
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
  //leds[NUM_LEDS-1].g = 2;

}

void loop() {
  // put your main code here, to run repeatedly:

   FadeUp()2;

}

void FadeUp(){

  if(leds[NUM_LEDS - 1].g < 255)
  {
    leds[NUM_LEDS - 1].g = (leds[NUM_LEDS - 1].g + 1)*2;
    if(leds[NUM_LEDS - 1].g > 255)
    {
      leds[NUM_LEDS - 1].g = 255;
    }
  }
  for(int i = NUM_LEDS - 2; i>=0; i--)
  {
    if(leds[i+1].g > 2 && leds[i].g < 255)
    {
      leds[i].g = (leds[i].g + 1)*2;
      if(leds[i].g > 255)
      {
        leds[i].g = 255;
      }
    }
  }

   FastLED.show();
   FastLED.delay(60);
}
void FadeUp2(){

  if(leds[NUM_LEDS - 1].g < 255)
  {
    leds[NUM_LEDS - 1].g = vals[FindIndex(leds[NUM_LEDS - 1].g) + 1];
    /*
    if(leds[NUM_LEDS - 1].g > 255)
    {
      leds[NUM_LEDS - 1].g = 255;
    }
    */
  }
  for(int i = NUM_LEDS - 2; i>=0; i--)
  {
    if(leds[i+1].g > 3 && leds[i].g < 255)
    {
       leds[i].g = vals[FindIndex(leds[i].g) + 1];
       /*
      if(leds[i].g > 255)
      {
        leds[i].g = 255;
      }
      */
    }
  }
   FastLED.show();
   FastLED.delay(60);
}

int FindIndex(int val){
  for(int i=0; i < 32; i++){
    if(val == vals[i]){
      return i;
      break;
    }
  }
}
/*
void FadeUp2(){
  for(int i = 0; i<NUM_LEDS - 1; i++)
  {
    //set yourself to the color of the one above you and increment the one above you
    if(leds[i].g < 255){
      leds[i] = leds[i+1];
      leds[i+1].g += 1;
    }
  }
   FastLED.show();
   delay(25);

}

void newFade() {

  for (int i=0; i<NUM_LEDS; i++) {
    leds[ledctr].g = pow(2,i)-1;

    FastLED.show();
  }

  if (ledctr++ > NUM_LEDS-1) {
     ledctr = 0;
     FastLED.clear();
  }
}
*/