Multiple CRGB Instances

TestFire2012.ino

#include <FastLED.h>

#define LEFT_LED_PIN   22
#define RIGHT_LED_PIN   23
#define LEFT_NUM_LEDS    72
#define RIGHT_NUM_LEDS    72

CRGB leftLEDS[NUM_LEDS];
CRGB rightLEDS[NUM_LEDS];

...
  
void setup() {
  delay(3000); // sanity delay
  FastLED.addLeds<CHIPSET, LEFT_LED_PIN, COLOR_ORDER>(leftLEDS, LEFT_NUM_LEDS).setCorrection( TypicalLEDStrip );
  FastLED.addLeds<CHIPSET, RIGHT_LED_PIN, COLOR_ORDER>(rightLEDS, RIGHT_NUM_LEDS).setCorrection( TypicalLEDStrip );
  FastLED.setBrightness( BRIGHTNESS );
}

void loop()
{
  // Add entropy to random number generator; we use a lot of it.
  // random16_add_entropy( random());

  Fire2012(leftLEDS); // run simulation frame
  Fire2012(rightLEDS); // run simulation frame

  FastLED.show(); // display this frame
  FastLED.delay(1000 / FRAMES_PER_SECOND);
}

...
  
void Fire2012(CRGB thisleds)
{
  ...
}