import org.openkinect.processing.*;
import processing.sound.*;

SinOsc sinex;
SinOsc siney;
SinOsc sinez;
float freqx;
float freqy;
float freqz;
float amp = 1;
Kinect kinect;

void setup()
{
    size(640,480);
    kinect = new Kinect(this);
    kinect.initDepth();
    kinect.initVideo();
    kinect.enableIR(false);
    textSize(32);
    sinex = new SinOsc(this);
    siney = new SinOsc(this);
    sinez = new SinOsc(this);
}

void draw()
{
    background(0);
    int[] depth = kinect.getRawDepth();
    int step = 1;
    int point_count = 0;
    float depth_avg = 0;
    float x_avg = 0;
    float y_avg = 0;
    noStroke();
    loadPixels();
    for (int x = 0; x < 640; x+=step)
        for (int y = 0; y < 480; y+=step)
        {
            int c = (depth[x + y * 640] / 4);
            if (depth[x + y * 640] > 0 && depth[x + y * 640] < 900)
            {
                point_count++;
                depth_avg += depth[x + y * 640];
                x_avg += x;
                y_avg += y;
            }
            else
                c = 0;
            pixels[x + y * 640] = color(c,0,0);
        }
    if (point_count > 3000)
    {
        depth_avg /= point_count;
        x_avg /= point_count;
        y_avg /= point_count;
        amp = 1;
        freqx = (1 - (x_avg / 640)) * (62 - 28.5) + 28.5;
        freqy = (1 - (y_avg / 240)) * (62 - 28.5) + 28.5;
        freqz = map(constrain(depth_avg / 900, 0, 1), 0, 1, 30, 60);
    }
    else
        amp = 0;
    sinex.play(freqx, amp, 0, -1);
    siney.play(freqy, amp, 0, -1);
    sinez.play(freqz, amp, 0, -1);
    updatePixels();
}