processing4/java/examples/Topics/Interaction/Tickle/applet/Tickle.java

import processing.core.*; 

import java.applet.*; 
import java.awt.*; 
import java.awt.image.*; 
import java.awt.event.*; 
import java.io.*; 
import java.net.*; 
import java.text.*; 
import java.util.*; 
import java.util.zip.*; 
import java.util.regex.*; 

public class Tickle extends PApplet {

/**
 * Tickle. 
 * 
 * The word "tickle" jitters when the cursor hovers over.
 * Sometimes, it can be tickled off the screen.
 */

PFont font;
float x = 33; // X-coordinate of text
float y = 60; // Y-coordinate of text

public void setup() 
{
  size(200, 200);
  font = loadFont("AmericanTypewriter-24.vlw");
  textFont(font);
  noStroke();
}

public void draw() 
{
  fill(204, 120);
  rect(0, 0, width, height);
  fill(0);
  // If the cursor is over the text, change the position
  if ((mouseX >= x) && (mouseX <= x+55) &&
    (mouseY >= y-24) && (mouseY <= y)) {
    x += random(-5, 5);
    y += random(-5, 5);
  }
  text("tickle", x, y);
}

  static public void main(String args[]) {
    PApplet.main(new String[] { "Tickle" });
  }
}