// While Loop Example

void setup()
{
  size(400,400);  
  stroke(255,0,0); // I like red..
  strokeWeight(5);
  fill(0,0,255); // I like blue..
}

void draw()
{
  background(128);
  
  // Let's make a striped background
  int x = 0;
  while (x < width)  // Just like an if statement but it keeeps happening until it evaluates to false
  {
    // Start the block of code for this while loop
  
    line(x,0,x,height);  // Draw a line the entire height of the window and at the x point
    
    // Getting fancy
    /*
    if (mouseX > x - 5 && mouseX < x + 5)
    {
      // draw an ellipse
      ellipseMode(CORNERS);
      noStroke();
      ellipse(x-5,mouseY-10,x+5,mouseY+10);   
      stroke(255,0,0); // I like red..
      strokeWeight(5);
    }
    else
    {
      line(x,0,x,height);  // Draw a line the entire height of the window and at the x point 
    }
    */
    
    x = x + 10; // Increase the x variable by 10 every time through the loop

    // End the block of code for this while loop
  }
  
}