追加課題雛型

音量で動きを変えるジェネラティブアート

import ddf.minim.*;
import ddf.minim.analysis.*;
import ddf.minim.effects.*;
import ddf.minim.signals.*;
import ddf.minim.spi.*;
import ddf.minim.ugens.*;

int x = 50;
int y = 50;
float xnoise = random(1);
float ynoise = random(1);
int count = 0;
int sx, sy;
Minim minim;
AudioPlayer music;
void setup() {
  size(300, 300);
  stroke(random(255), random(255), random(255), 30);
  sx = width/2;
  sy = height/2;
  minim = new Minim(this);
  String s = "music.mp3";
  music = minim.loadFile(s, 2048);  //loadFile("音声ファイル", バッファサイズ)
  music.play();
  background(0);
}
void draw() {
  float left = 0;
  float right = 0;  
  for (int i = 0; i < music.bufferSize() - 1; i++) {
    left += abs(music.left.get(i));
    right += abs(music.right.get(i));
  }
  left = left/music.bufferSize()/50;
  right = right/music.bufferSize()/50;

println(left + "  " + right );

stroke(random(255), random(255), random(255), 100);
  x = (int)(noise(xnoise) * width);
  y = (int)(noise(ynoise) * height);
  line(sx, sy, x, y);
  xnoise += left;
  ynoise += right;

fill(0, 5);
  rect(0, 0, width, height);
}