tipgame
Class Keyboard

java.lang.Object
  tipgame.Keyboard

All Implemented Interfaces:

java.awt.KeyEventDispatcher, java.io.Externalizable, java.io.Serializable

public class Keyboard
extends java.lang.Object
implements java.io.Externalizable, java.awt.KeyEventDispatcher

This class uses polling rather than events for keyboard input.

Author:

Jam Jenkins

See Also:

Serialized Form

Field Summary

private char	key key pressed
private java.util.Observer	observer observer

Constructor Summary

Keyboard()
Creates a new instance of Keyboard

Method Summary

void	clear() clear all pending keyboard events
boolean	dispatchKeyEvent(java.awt.event.KeyEvent e) sets key and observer
char	getLastKey() gets the last key pressed.
void	readExternal(java.io.ObjectInput in)
void	setObserver(java.util.Observer observer) sets observer
java.lang.String	toString() returns the key that is pressed in string form
void	writeExternal(java.io.ObjectOutput out)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

key

private char key

key pressed

observer

private java.util.Observer observer

observer

Constructor Detail

Keyboard

public Keyboard()

Creates a new instance of Keyboard

Method Detail

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Throws:

java.io.IOException

java.lang.ClassNotFoundException

toString

public java.lang.String toString()

returns the key that is pressed in string form

Overrides:

toString in class java.lang.Object

clear

public void clear()

clear all pending keyboard events

getLastKey

public char getLastKey()

gets the last key pressed. Subsequent calls to getLastKey will return the same value until another key is pressed or the key events have been cleared.

Returns:

the last key pressed

dispatchKeyEvent

public boolean dispatchKeyEvent(java.awt.event.KeyEvent e)

sets key and observer

Specified by:

dispatchKeyEvent in interface java.awt.KeyEventDispatcher

Parameters:

KeyEvent -

Returns:

false

setObserver

public void setObserver(java.util.Observer observer)

sets observer

Parameters:

observer -