NoisePlayground.ino

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#include <FastLED.h>
 
#if defined(__AVR_ATtiny85__) || defined(__AVR_ATtiny84__)
// too large for ATtiny85, so skip this.
void setup() {};
void loop() {};
#else
 
// Params for width and height
const uint8_t kMatrixWidth = 16;
const uint8_t kMatrixHeight = 16;
 
#define NUM_LEDS (kMatrixWidth * kMatrixHeight)
 
// Param for different pixel layouts
#define kMatrixSerpentineLayout  true
 
// led array
CRGB leds[kMatrixWidth * kMatrixHeight];
 
// x,y, & time values
uint32_t x,y,v_time,hue_time,hxy;
 
// Play with the values of the variables below and see what kinds of effects they
// have!  More octaves will make things slower.
 
// how many octaves to use for the brightness and hue functions
uint8_t octaves=1;
uint8_t hue_octaves=3;
 
// the 'distance' between points on the x and y axis
int xscale=57771;
int yscale=57771;
 
// the 'distance' between x/y points for the hue noise
int hue_scale=1;
 
// how fast we move through time & hue noise
int time_speed=1111;
int hue_speed=31;
 
// adjust these values to move along the x or y axis between frames
int x_speed=331;
int y_speed=1111;
 
void loop() {
  // fill the led array 2/16-bit noise values
  fill_2dnoise16(leds, kMatrixWidth, kMatrixHeight, kMatrixSerpentineLayout,
                octaves,x,xscale,y,yscale,v_time,
                hue_octaves,hxy,hue_scale,hxy,hue_scale,hue_time, false);
 
  FastLED.show();
 
  // adjust the intra-frame time values
  x += x_speed;
  y += y_speed;
  v_time += time_speed;
  hue_time += hue_speed;
  // delay(50);
}
 
 
void setup() {
  // initialize the x/y and time values
  random16_set_seed(8934);
  random16_add_entropy(analogRead(3));
 
  Serial.begin(57600);
  Serial.println("resetting!");
 
  delay(3000);
  FastLED.addLeds<WS2811,2,GRB>(leds,NUM_LEDS);
  FastLED.setBrightness(96);
 
  hxy = (uint32_t)((uint32_t)random16() << 16) + (uint32_t)random16();
  x = (uint32_t)((uint32_t)random16() << 16) + (uint32_t)random16();
  y = (uint32_t)((uint32_t)random16() << 16) + (uint32_t)random16();
  v_time = (uint32_t)((uint32_t)random16() << 16) + (uint32_t)random16();
  hue_time = (uint32_t)((uint32_t)random16() << 16) + (uint32_t)random16();
 
}
 
#endif