color.ino

void FillLEDsFromPaletteColors( uint8_t colorIndex )
{
    for( int i = 0; i < pref_num_leds; i++) {
        leds[i] = ColorFromPalette( currentPalette, colorIndex, 255, currentBlending);
        colorIndex += 3;
    }
}


// This function fills the palette with totally random colors.
void SetupTotallyRandomPalette()
{
    for( int i = 0; i < 16; i++) {
        currentPalette[i] = CHSV( random8(), 255, random8());
    }
}

// This function sets up a palette of black and white stripes,
// using code.  Since the palette is effectively an array of
// sixteen CRGB colors, the various fill_* functions can be used
// to set them up.
void SetupBlackAndWhiteStripedPalette()
{
    // 'black out' all 16 palette entries...
    fill_solid( currentPalette, 16, CRGB::Black);
    // and set every fourth one to white.
    currentPalette[0] = CRGB::White;
    currentPalette[4] = CRGB::White;
    currentPalette[8] = CRGB::White;
    currentPalette[12] = CRGB::White;
    
}

// This function sets up a palette of purple and green stripes.
void SetupPurpleAndGreenPalette()
{
    CRGB purple = CHSV( HUE_PURPLE, 255, 255);
    CRGB green  = CHSV( HUE_GREEN, 255, 255);
    CRGB black  = CRGB::Black;
    
    currentPalette = CRGBPalette16(
                                   green,  green,  black,  black,
                                   purple, purple, black,  black,
                                   green,  green,  black,  black,
                                   purple, purple, black,  black );
}


// This example shows how to set up a static color palette
// which is stored in PROGMEM (flash), which is almost always more
// plentiful than RAM.  A static PROGMEM palette like this
// takes up 64 bytes of flash.
const TProgmemPalette16 myRedWhiteBluePalette_p PROGMEM =
{
    CRGB::Red,
    CRGB::Gray, // 'white' is too bright compared to red and blue
    CRGB::Blue,
    CRGB::Black,
    
    CRGB::Red,
    CRGB::Gray,
    CRGB::Blue,
    CRGB::Black,
    
    CRGB::Red,
    CRGB::Red,
    CRGB::Gray,
    CRGB::Gray,
    CRGB::Blue,
    CRGB::Blue,
    CRGB::Black,
    CRGB::Black
};


// Part of Fire effect
void setPixelHeatColor (int Pixel, byte temperature) {
  // Scale 'heat' down from 0-255 to 0-191
  byte t192 = round((temperature/255.0)*191);
 
  // calculate ramp up from
  byte heatramp = t192 & 0x3F; // 0..63
  heatramp <<= 2; // scale up to 0..252
 
  // figure out which third of the spectrum we're in:
  if( t192 > 0x80) {                     // hottest
    setPixel(Pixel, 255, 255, heatramp);
    
  } else if( t192 > 0x40 ) {             // middle
    setPixel(Pixel, 255, heatramp, 0);
  } else {                               // coolest
    setPixel(Pixel, heatramp, 0, 0);
  }
}

void setPixel( int Pixel, int R, int G, int B) {
  leds[ Pixel ] = CRGB( B, R, G ); 
}