support.h

#ifndef SUPPORT_H
#define SUPPORT_H

// Supporting general function -------------------------------------------------------------------------------------------

void showfps() {                                                                // Show rames per seocond on the serial monitor.

// Temporary local variable  
  uint32_t currentMillis;

// Persistent local variable  
  static uint32_t lastMillis = 0;
  
  currentMillis=millis();
  loops++;                                                                      // Keep on incrementing this each time it's called until (currentMillis - lastMillis) > 1000
  
  if(currentMillis - lastMillis >1000) {                                        // If 1 second has passed, then. . 
    Serial.println(loops);                                                      // Print the value of loops (which is loops per second).
    lastMillis = currentMillis;                                                 // Reset everything and start counting all over again. By Andrew Tuline.
    loops = 0;
  }
  
} // showfps()



// Supporting visual functions ----------------------------------------------------------------------------------------------

void lineit() {                                                                 // Send the pixels one or the other direction down the line.
  
  if (thisdir == 0) {
    for (int i = NUM_LEDS-1; i >0 ; i-- ) leds[i] = leds[i-1];
  } else {
    for (int i = 0; i < NUM_LEDS-1 ; i++ ) leds[i] = leds[i+1];
  }
  
} // waveit()



void waveit() {                                                                 // Shifting pixels from the center to the left and right.
  
  for (int i = NUM_LEDS - 1; i > NUM_LEDS/2; i--) {                             // Move to the right.
    leds[i] = leds[i - 1];
  }

  for (int i = 0; i < NUM_LEDS/2; i++) {                                        // Move to the left.
    leds[i] = leds[i + 1];
  }
  
} // waveit()



void addGlitter( fract8 chanceOfGlitter) {                                      // Let's add some glitter, thanks to Mark
  
  if( random8() < chanceOfGlitter) {
    leds[random16(NUM_LEDS)] += CRGB::White;
  }

} // addGlitter()

#endif