import processing.core.*;
                     


                     
public class MyProcessingSketch extends PApplet {
                     


                     
 public void setup() {
                     
 size(200,200);
                     
 background(0);
                     
 }
                     


                     
 public void draw() {
                     
 stroke(255);
                     
 if (mousePressed) {
                     
 line(mouseX,mouseY,pmouseX,pmouseY);
                     
 }
                     
 }
                     


                     
 public static void main(String args[]) {
                     
 PApplet.main(new String[] { "--present", "MyProcessingSketch" });
                     
 }
                    

                    }