import java.awt.*;

import java.awt.event.*;

/*

File: JabbApp.java

Author: Kenneth L Moore 2/8/01

Purpose: Implement instantiations of a Jabberwocky.

Notes: Must have Jabberwocky.java in the same directory to compile.

Relies on Java clean up to release instantiated Jabberwockies.

Cycles color and sex of Jabberwockies instantiated.

Must implement ActionListener to get mouse clicks on buttons.

(implement circumvents single inheritence)

*/

public class JabbApp extends java.applet.Applet implements ActionListener

{

// Applet wide variables.

Button b1, b2, b3;

boolean male = true; // set first Jabberwocky to male then cycle

int currentColor = 0; // set color to first color

Jabberwocky myMonster; // this will be the instance of a Jabberwocky

Color myPurple = new Color(165, 110, 255); // define purple

Color myBlue = new Color( 0, 220, 255); // define a light blue

Font f2;

/*

This method is a built in part of all Applets. It is called by the

browser when the Applet starts. It allows the programmer to initialize

variables/graphic elements.

*/

public void init()

{

// button font

f2 = new Font("Helvetica",Font.BOLD,12);

// instantiate (create) button objects

b1 = new Button("FEED Jabberwocky");

b2 = new Button("Create Jabberwocky");

b3 = new Button("Display Jabberwocky");

// set initial button colors

b1.setBackground(Color.red);

b1.setForeground(Color.white);

b2.setBackground(Color.yellow);

b3.setBackground(Color.green);

// prepare to respond to mouse clicks

b1.addActionListener(this);

b2.addActionListener(this);

b3.addActionListener(this);

b1.setFont(f2);

b2.setFont(f2);

b3.setFont(f2);

// put the buttons in the window using default placement

add(b1);

add(b2);

add(b3);

// instantiate (create an object) the first Jabberwocky

myMonster = new Jabberwocky();

// override default window size

resize(450,200);

}

/*

This method is called by the browser in response to the need for

refreshing the window. For example, when the window is resized.

It is also called when the programmer asks for a repaint().

This method should NEVER be called directly by the programmer.

This method is a built in part of all Applets.

*/

public void paint(Graphics g)

{

myMonster.displayAttr(g);

}

/*

This method is the button response method. It must be used when

a button is put into an Applet. If it is not implemented, the

compiler say that the Applet is virtual (beyond scope of discussion)

*/

public void actionPerformed(ActionEvent e)

{

// see what button pressed by title

if (e.getActionCommand().equals("FEED Jabberwocky")){

// do feeding

myMonster.setHungry(!(myMonster.getHungry()));

myMonster.setDisplayFlag(false);

myMonster.setFeedFlag(true);

setBackground(Color.red);

}

else if (e.getActionCommand().equals("Create Jabberwocky")){

// create new Jabberwocky - old Jabberwocky cleaned by

// Java memory management.

myMonster = new Jabberwocky();

myMonster.setDisplayFlag(true);

myMonster.setFeedFlag(false);

// toggle sex on each creation

if (male){

myMonster.setSex("Male");

male = false;

}

else {

myMonster.setSex("Female");

male = true;

}

// cycle through all colors

if(currentColor == 0){

myMonster.setColor("gray");

setBackground(Color.gray);

b2.setBackground(Color.gray);

}

else if (currentColor == 1){

myMonster.setColor("pink");

setBackground(Color.pink);

b2.setBackground(Color.pink);

}

else if (currentColor == 2){

myMonster.setColor("orange");

setBackground(Color.orange);

b2.setBackground(Color.orange);

}

else if (currentColor == 3){

myMonster.setColor("Purple");

setBackground(myPurple);

b2.setBackground(myPurple);

}

else if (currentColor == 4){

myMonster.setColor("Blue");

setBackground(myBlue);

b2.setBackground(myBlue);

}

currentColor++;

if(currentColor > 4) currentColor = 0;

}

else if (e.getActionCommand().equals("Display Jabberwocky")){

// do display

myMonster.setDisplayFlag(true);

myMonster.setFeedFlag(false);

setBackground(Color.green);

}

// for all button clicks.

repaint(); // have browser call paint

}

}