plasma.h

#ifndef PLASMA_H
#define PLASMA_H

void plasma() {

// Persistent local variables
  static int16_t thisphase = 0;                                                 // Phase of a cubicwave8.
  static int16_t thatphase = 0;                                                 // Phase of the cos8.

// Temporary local variables
  uint16_t thisbright;
  uint16_t colorIndex;

  timeval = 20;                                                                 // Our EVERY_N_MILLIS_I timer value.
  
  thisphase += beatsin8(6,-4,4);                                                // You can change direction and speed individually.
  thatphase += beatsin8(7,-4,4);                                                // Two phase values to make a complex pattern. By Andrew Tuline.

  for (int k=0; k<NUM_LEDS; k++) {                                              // For each of the LED's in the strand, set a brightness based on a wave as follows.
    thisbright = cubicwave8((k*8)+thisphase)/2;    
    thisbright += cos8((k*10)+thatphase)/2;                                     // Let's munge the brightness a bit and animate it all with the phases.
    colorIndex=thisbright;
    thisbright = qsuba(thisbright, 255-sampleavg);                              // qsuba chops off values below a threshold defined by sampleavg. Gives a cool effect.
    
    leds[k] = ColorFromPalette( currentPalette, colorIndex, thisbright, currentBlending);   // Let's now add the foreground colour.
  }

  addGlitter(sampleavg/2);                                                      // Add glitter based on sampleavg.
   
} // plasma()

#endif