/**
 * Input Noise
 * by Cameron Boulton
 *
 * A basic noise generation sketch that uses the user's microphone or line-in as a generator.
 *
 * Notes: For this to work, please ensure your microphone is selected as your default input device.
 */

// Include sound library namespace
import ddf.minim.*;

Minim minim;
AudioInput input;

int x = 0, y = 0;
int cellSize = 10;

void setup()
{
  size(640, 480, P2D);
  frameRate(255);
  noStroke();
  
  // Initialize sound library
  minim = new Minim(this);
  // Open input line
  input = minim.getLineIn(Minim.STEREO);
}

void draw()
{
  fill(norm(input.mix.get(0),-1,1)*255);
  rect(x, y, cellSize, cellSize);
  
  // Have we hit the side of the window?
  if (x >= width)
  {
    // Then move to the next line
    x = 0;
    y += cellSize;
  } else {
    // Otherwise continue
    x += cellSize;
  }
  
  // Have we hit the bottom of the window?
  if (y >= height)
  {
    // Then start over from the beginning
    x = 0;
    y = 0;
  }
}


void stop()
{
  // Close input
  input.close();
  // Stop sound library
  minim.stop();
  
  // Continue up the event chain
  super.stop();
}