Errors in code

float a = 100;

void setup() 
{
  size(640, 200);
  stroke(255);
}

void draw() 
{
  background(51);
  a = a - 0.5;
  if (a < 0) { 
    a = height; 
  }
  line(0, a, width, a);  
}

If I put this into the arduino platform with the kinect connected to the computer and the SimpleOpenNi libraries uploaded would it do something?
or would I have to utilize something else?

I got the code from processing.org

I hope this isn't incorrect and you can understand what I am trying to ask.