java dancing

// Perlin java dancing

// by Maxime Gaillard

// some code borrowed from

/**

 * Noise2D 

 * by Daniel Shiffman.  

 * 

 * and

 *

 * SoundCipher library example by Andrew R. Brown

**/

​

​

​

import arb.soundcipher.*;

​

float[] perl=new float[320000];

float[] temp= new float[400];

int[] danse = new int[10];

float increment = 0.02;

float c;

int inc=0;

float note;

​

SoundCipher sc = new SoundCipher(this);

SoundCipher sc2 = new SoundCipher(this);

float[] pitchSet = {57, 60, 60, 60, 62, 64, 67, 67, 69, 72, 72, 72, 74, 76, 79};

float setSize = pitchSet.length;

float keyRoot = 0;

float density = 0.8;

​

​

void setup() {

  size(400,400);

  colorMode(HSB);

  smooth();

  noiseDetail(32);

  getNoise();

  sc.instrument(0.0f);

  sc2.instrument(0.0f);

  for(int i=0;i<10;i++) danse[i]=int(random(16000));

  frameRate(30);

  sc.channel(1);

  sc2.channel(2);

}

​

void draw() {

  println(frameRate);

  scroll();

  fill(perl[0],perl[150],perl[3000],140);

  ellipse(perl[danse[0]]*1.5, perl[danse[1]]*1.5,perl[danse[2]]/2,perl[danse[3]]/2);

  fill(perl[300],255,perl[375],140);

  rect(perl[danse[4]]*1.5, perl[danse[5]]*1.5,perl[danse[6]]/2,perl[danse[7]]/2);

  playNotes();

}

​

void getNoise(){

  //-------------- get perlin noise from window xy

  float xoff = 0.0; // Start xoff at 0

  for (int x = 0; x < width; x++) {

    xoff += increment;   // Increment xoff 

    float yoff = 0.0;   // For every xoff, start yoff at 0

    for (int y = 0; y < height; y++) {

      yoff += increment; // Increment yoff

      perl[x+y*width]=noise(xoff,yoff)*255;

    }

  }

  //---------------- duplicate by symetry

  int s=width*height;

  for (int x = 0; x < width; x++) {

    inc=0;

    for (int y = 0; y < height; y++) {

      inc++;

      perl[s+x+y*width]= perl[x+(height-inc)*width];

    }

  }

}

void scroll(){

  //------------------------- scroll perlin noise

  arrayCopy(perl,0,temp,0,width);

  arrayCopy(perl,width,perl,0,perl.length-width);

  arrayCopy(temp,0,perl,perl.length-width,temp.length);

  //-------------- rotate palette and print to screen

  loadPixels();

  for (int i = 0; i < width*height; i++) {

    c=(perl[i]+frameCount)%255 ;

    pixels[i] = color(c,128,196,255);

  }

  updatePixels();

}

​

void playNotes(){

    if ((frameCount%6 == 0)&&(random(1) < density)) {

    int s=int(perl[danse[0]]*2+perl[danse[1]]*2*width);

    note=map(perl[s],0,255,0,setSize);

    sc.playNote(pitchSet[(int)note]+keyRoot, random(90)+30, random(20)/10 + 0.2);

  }  

  if (frameCount%24 == 0) {

    keyRoot = (random(4)-2)*2;

    density = random(7) / 10 + 0.3;

    sc2.playNote(36+keyRoot, random(20) + 90, 8.0);

  }

}

​

void keyPressed(){

  for(int i=0;i<10;i++) danse[i]=int(random(16000));

}

​