52 lines
2.4 KiB
C
52 lines
2.4 KiB
C
#ifndef RIPPLE_H
|
|
#define RIPPLE_H
|
|
|
|
void ripple() { // Display ripples triggered by peaks.
|
|
|
|
// Local definitions
|
|
#define maxsteps 16 // Maximum number of steps.
|
|
|
|
// Persistent local variables.
|
|
static uint8_t colour; // Ripple colour is based on samples.
|
|
static uint16_t center = 0; // Center of current ripple.
|
|
static int8_t step = -1; // Phase of the ripple as it spreads out.
|
|
|
|
timeval = 20; // Our EVERY_N_MILLIS_I timer value.
|
|
|
|
if (samplepeak == 1) {step = -1;} // Trigger a new ripple if we have a peak.
|
|
|
|
fadeToBlackBy(leds, NUM_LEDS, 64); // Fade the strand, where 1 = slow, 255 = fast
|
|
|
|
switch (step) {
|
|
|
|
case -1: // Initialize ripple variables. By Andrew Tuline.
|
|
center = random(NUM_LEDS);
|
|
colour = (oldsample) % 255; // More peaks/s = higher the hue colour.
|
|
step = 0;
|
|
break;
|
|
|
|
case 0:
|
|
leds[center] += ColorFromPalette(currentPalette, colour, 255, currentBlending); // Display the first pixel of the ripple.
|
|
step ++;
|
|
break;
|
|
|
|
case maxsteps: // At the end of the ripples.
|
|
// step = -1;
|
|
break;
|
|
|
|
default: // Middle of the ripples.
|
|
|
|
leds[(center + step + NUM_LEDS) % NUM_LEDS] += ColorFromPalette(currentPalette, colour, 255/step*2, currentBlending); // A spreading and fading pattern up the strand.
|
|
leds[(center - step + NUM_LEDS) % NUM_LEDS] += ColorFromPalette(currentPalette, colour, 255/step*2, currentBlending); // A spreading and fading pattern down the strand.
|
|
step ++; // Next step.
|
|
break;
|
|
|
|
} // switch step
|
|
|
|
|
|
addGlitter(sampleavg); // Add glitter baesd on sampleavg.
|
|
|
|
} // ripple()
|
|
|
|
#endif
|