appletbots
Class Applet

java.lang.Object
  java.awt.Component
      java.awt.Container
          java.awt.Panel
              java.applet.Applet
                  javax.swing.JApplet
                      appletbots.Applet

All Implemented Interfaces:

java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, javax.accessibility.Accessible, javax.swing.RootPaneContainer

Direct Known Subclasses:

BallsApplet, DirectedBallsApplet, FriendlyApplet, GatherersApplet, SpreadOutApplet, SwarmApplet, TagApplet

public abstract class Applet
extends javax.swing.JApplet

This is an abstract applet class to run appletbots worlds. Subclasses need only to implement the initializeWorld() method. Optionally, they can override the getSettingsPanel() method to all define a settings panel.

Author:

Erik Rasmussen

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class javax.swing.JApplet

javax.swing.JApplet.AccessibleJApplet

Nested classes/interfaces inherited from class java.applet.Applet

java.applet.Applet.AccessibleApplet

Nested classes/interfaces inherited from class java.awt.Panel

java.awt.Panel.AccessibleAWTPanel

Nested classes/interfaces inherited from class java.awt.Container

java.awt.Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class java.awt.Component

java.awt.Component.AccessibleAWTComponent, java.awt.Component.BltBufferStrategy, java.awt.Component.FlipBufferStrategy

Field Summary

protected static long	MILLISECONDS_BETWEEN_TIME_FIELD_UPDATES The number of milliseconds to wait between time field updates.
protected ObjectViewer	objectViewer The object viewer panel
protected javax.swing.JPanel	settingsPanel The settings panel

Fields inherited from class javax.swing.JApplet

accessibleContext, rootPane, rootPaneCheckingEnabled

Fields inherited from class java.awt.Component

BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Constructor Summary

Applet()
Constructs the applet

Method Summary

void	destroy() Stops any threads still running
int	getDelay() Returns the number of milliseconds between time cycles
protected javax.swing.JPanel	getSettingsPanel() Returns a blank settings panel.
void	init() Initializes the applet
protected abstract World	initializeWorld() Returns an initialized world with the desired agents and object added.
void	resetClicked(java.awt.event.ActionEvent event) The method invoked when the reset button is clicked.
void	speedChanged(javax.swing.event.ChangeEvent event) The method invoked when the speed slider is clicked.
void	startClicked(java.awt.event.ActionEvent event) The method invoked when the start button is clicked.
void	stopClicked(java.awt.event.ActionEvent event) The method invoked when the stop button is clicked.
void	updateTimeField() Updates the time field if the time field has not been updated in at least MILLISECONDS_BETWEEN_TIME_FIELD_UPDATES milliseconds.
void	worldClicked(java.awt.event.MouseEvent event) The method invoked when the user clicks on the world.

Methods inherited from class javax.swing.JApplet

addImpl, createRootPane, getAccessibleContext, getContentPane, getGlassPane, getJMenuBar, getLayeredPane, getRootPane, isRootPaneCheckingEnabled, paramString, remove, setContentPane, setGlassPane, setJMenuBar, setLayeredPane, setLayout, setRootPane, setRootPaneCheckingEnabled, update

Methods inherited from class java.applet.Applet

getAppletContext, getAppletInfo, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, getParameterInfo, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus, start, stop

Methods inherited from class java.awt.Panel

addNotify

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getAlignmentX, getAlignmentY, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getInsets, getLayout, getListeners, getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paint, paintComponents, preferredSize, print, printComponents, processContainerEvent, processEvent, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, transferFocusBackward, transferFocusDownCycle, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, contains, createImage, createImage, createVolatileImage, createVolatileImage, disable, disableEvents, dispatchEvent, enable, enable, enableEvents, enableInputMethods, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, getBackground, getBounds, getBounds, getColorModel, getComponentListeners, getComponentOrientation, getCursor, getDropTarget, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHeight, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getName, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent, hasFocus, hide, imageUpdate, inside, isBackgroundSet, isCursorSet, isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner, isFocusTraversable, isFontSet, isForegroundSet, isLightweight, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, printAll, processComponentEvent, processFocusEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processKeyEvent, processMouseEvent, processMouseMotionEvent, processMouseWheelEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, reshape, setBackground, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground, setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize, setMinimumSize, setName, setPreferredSize, setSize, setSize, setVisible, show, show, size, toString, transferFocus, transferFocusUpCycle

Methods inherited from class java.lang.Object

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

Field Detail

MILLISECONDS_BETWEEN_TIME_FIELD_UPDATES

protected static final long MILLISECONDS_BETWEEN_TIME_FIELD_UPDATES

The number of milliseconds to wait between time field updates. If the time cycles are flying by too quickly, the applet cannot paint the time field quickly enough, so it waits until a minimum number of milliseconds have passed since the last update before updating the time field.

See Also:

Constant Field Values

settingsPanel

protected javax.swing.JPanel settingsPanel

The settings panel

objectViewer

protected ObjectViewer objectViewer

The object viewer panel

Constructor Detail

Applet

public Applet()

Constructs the applet

Method Detail

init

public void init()

Initializes the applet

Overrides:

init in class java.applet.Applet

destroy

public void destroy()

Stops any threads still running

Overrides:

destroy in class java.applet.Applet

startClicked

public void startClicked(java.awt.event.ActionEvent event)

The method invoked when the start button is clicked. Starts the world thread.

Parameters:

event - The action event

stopClicked

public void stopClicked(java.awt.event.ActionEvent event)

The method invoked when the stop button is clicked. Stops the world thread.

Parameters:

event - The action event

resetClicked

public void resetClicked(java.awt.event.ActionEvent event)

The method invoked when the reset button is clicked. Resets the world thread.

Parameters:

event - The action event

speedChanged

public void speedChanged(javax.swing.event.ChangeEvent event)

The method invoked when the speed slider is clicked. Calls world.setDelay(long).

Parameters:

event - The change event

getDelay

public int getDelay()

Returns the number of milliseconds between time cycles

Returns:

The number of milliseconds between time cycles

updateTimeField

public void updateTimeField()

Updates the time field if the time field has not been updated in at least MILLISECONDS_BETWEEN_TIME_FIELD_UPDATES milliseconds.

worldClicked

public void worldClicked(java.awt.event.MouseEvent event)

The method invoked when the user clicks on the world. It calls world.selectObjectAt(x,y).

Parameters:

event - The mouse event

getSettingsPanel

protected javax.swing.JPanel getSettingsPanel()

Returns a blank settings panel. This method may be overridden by subclasses to provide a user interface for changing world initialization settings.

Returns:

A blank settings panel

initializeWorld

protected abstract World initializeWorld()

Returns an initialized world with the desired agents and object added.

Returns:

An initialized world with the desired agents and object added.