// Dartmouth CS 2, Winter 2009, Chris Bailey-Kellogg
// Notes 4 | Sketch 8

// The current coordinates of the ball, starting at the center
float x=50, y=50;

void setup()
{
  size(400,400);
  smooth();
  noStroke();
  background(0);
}

void draw()
{
  fill(0,3);
  rect(0,0,width,height);
  fill(255);
  ellipse(x,y,5,5);
  // Move the position by random steps in x and y
  x = x+random(-2,2);
  y = y+random(-2,2);
}

void mousePressed()
{
  x = mouseX;
  y = mouseY;
}