demoreel.hpp

#include <FastLED.h>
#include "boardconfig.hpp"
#ifndef _DEMOREEL_H
#define _DEMOREEL_H
extern CRGB leds[NUM_LEDS];
extern const uint8_t actual_led_number[81];
#define FRAMES_PER_SECOND_DEMOREEL 120
#define ARRAY_SIZE(A) (sizeof(A) / sizeof((A)[0]))
// List of patterns to cycle through.  Each is defined as a separate function below.
uint8_t gCurrentPatternNumber = 0; // Index number of which pattern is current
uint8_t gHue = 0; // rotating "base color" used by many of the patterns
void rainbow() 
{
  // FastLED's built-in rainbow generator
  fill_rainbow( leds, NUM_LEDS, gHue, 7);
}

void addGlitter( fract8 chanceOfGlitter) 
{
  if( random8() < chanceOfGlitter) {
    leds[ actual_led_number[random16(NUM_LEDS)]] += CRGB::White;
  }
}

void rainbowWithGlitter() 
{
  // built-in FastLED rainbow, plus some random sparkly glitter
  rainbow();
  addGlitter(80);
}

void confetti() 
{
  // random colored speckles that blink in and fade smoothly
  fadeToBlackBy( leds, NUM_LEDS, 10);
  int pos = random16(NUM_LEDS);
  leds[actual_led_number[pos]] += CHSV( gHue + random8(64), 200, 255);
}

void sinelon()
{
  // a colored dot sweeping back and forth, with fading trails
  fadeToBlackBy( leds, NUM_LEDS, 20);
  int pos = beatsin16( 13, 0, NUM_LEDS-1 );
  leds[actual_led_number[pos]] += CHSV( gHue, 255, 192);
}

void bpm()
{
  // colored stripes pulsing at a defined Beats-Per-Minute (BPM)
  uint8_t BeatsPerMinute = 130;
  CRGBPalette16 palette = PartyColors_p;
  uint8_t beat = beatsin8( BeatsPerMinute, 64, 255);
  for( int i = 0; i < NUM_LEDS; i++) { //9948
    leds[actual_led_number[i]] = ColorFromPalette(palette, gHue+(i*2), beat-gHue+(i*10));
  }
}

void juggle() {
  // eight colored dots, weaving in and out of sync with each other
  fadeToBlackBy( leds, NUM_LEDS, 20);
  uint8_t dothue = 0;
  for( int i = 0; i < 8; i++) {
    leds[actual_led_number[beatsin16( i+7, 0, NUM_LEDS-1 )]] |= CHSV(dothue, 200, 255);
    dothue += 32;
  }
}
typedef void (*SimplePatternList[])();
SimplePatternList gPatterns = { rainbow, rainbowWithGlitter, confetti, sinelon, juggle, bpm };
void nextPattern()
{
  // add one to the current pattern number, and wrap around at the end
  gCurrentPatternNumber = gCurrentPatternNumber++;
  if(gCurrentPatternNumber > 5){
    gCurrentPatternNumber = 0;
  }
}


void demo_loop(){
    // Call the current pattern function once, updating the 'leds' array
  gPatterns[gCurrentPatternNumber]();

  // send the 'leds' array out to the actual LED strip
  FastLED.show();  
  // insert a delay to keep the framerate modest
  FastLED.delay(1000/FRAMES_PER_SECOND); 

  // do some periodic updates
  EVERY_N_MILLISECONDS( 20 ) { gHue++; } // slowly cycle the "base color" through the rainbow
  EVERY_N_SECONDS( 5 ) { nextPattern(); } // change patterns periodically
  delay(1);
}

#endif