TheFairyPanther FastLED

#define FASTLED_ALLOW_INTERRUPTS 0
#include <FastLED.h>
#define NUM_LEDS 600
#define DATA_PIN 1
#define BRIGHTNESS 255
#define COLOR_ORDER RGB
#define LED_TYPE WS2812B
#define FADE_SCALE 252
#define DELAYS 15

CRGB leds[NUM_LEDS];

void setup() {
  Serial.begin(57600);
  LEDS.addLeds<LED_TYPE,DATA_PIN,COLOR_ORDER>(leds,NUM_LEDS);
  LEDS.setBrightness(BRIGHTNESS);
  FastLED.setTemperature(ClearBlueSky );
}
void fadeall() { for(int i = 0; i < NUM_LEDS; i++) { leds[i].nscale8(FADE_SCALE); } }
int forward = 0;
void loop() {
 static uint8_t hue = 0;
  static uint8_t HueCounter = 0;

if (forward = 0){
 for (int H = 0; H < (NUM_LEDS/2) ;H++){
  leds[H] = CHSV(hue, 255, 255);  leds[NUM_LEDS-H] = CHSV(hue, 255, 255); FastLED.show();
  hue + 0.5 ;
  fadeall();
  delay(DELAYS);
  if (int HueCounter = 1)
  { hue++;HueCounter--;}
  else{ HueCounter++;}
  forward++;
  }}

 delay(30);
 hue +=20;
 for(int H = (NUM_LEDS)-1; H >= 0 ;H--){
  leds[H] = CHSV(hue, 255, 255);leds[NUM_LEDS-H] = CHSV(hue, 255, 255);  FastLED.show();
  fadeall();
  delay(DELAYS);
   if (int HueCounter = 1)
  { hue++;HueCounter--;}
  else{ HueCounter++;}
  }delay(30);
 hue +=20;
 forward--;
  }