Class BugDefense

java.lang.Object

java.awt.Component

java.awt.Container

javax.swing.JComponent

javax.swing.JPanel

uno.anahata.asi.swing.games.BugDefense

All Implemented Interfaces:

ActionListener, ImageObserver, MenuContainer, Serializable, EventListener, Accessible

public class BugDefense
extends JPanel
implements ActionListener

Anahata Bug Swarm Defense (Tactical Edition).

A fast-paced "Space Invaders" style game where the user defends the digital continent from descending logic bugs.

Author:

anahata

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class JPanel

JPanel.AccessibleJPanel

Nested classes/interfaces inherited from class JComponent

JComponent.AccessibleJComponent

Nested classes/interfaces inherited from class Container

Container.AccessibleAWTContainer

Nested classes/interfaces inherited from class Component

Component.AccessibleAWTComponent, Component.BaselineResizeBehavior, Component.BltBufferStrategy, Component.FlipBufferStrategy

Field Summary

Fields

Modifier and Type	Field	Description
private List<Rectangle>	bugs	The list of descending logic bug obstacles.
private int	bugSpawnTick	Tick counter to regulate enemy spawning frequency.
private int	lives	The player's remaining lives.
private List<Rectangle>	optimizationPulses	The list of active projectile pulses fired by the player.
private boolean	playing	Flag indicating if the game is currently active.
private final Random	rand	Random number generator for spawning bug coordinates.
private int	score	The player's current score.
private final int	shieldHeight	The height of the shield.
private final int	shieldWidth	The width of the shield.
private int	shieldX	The horizontal X position of the player's shield.
private final int	shieldY	The fixed vertical Y position of the player's shield.
private Timer	timer	The game loop timer.

Fields inherited from class JComponent

listenerList, TOOL_TIP_TEXT_KEY, ui, UNDEFINED_CONDITION, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW

Fields inherited from class Component

accessibleContext, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT

Fields inherited from interface ImageObserver

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

Constructor Summary

Constructors

Constructor	Description
BugDefense()	Constructs a new BugDefense panel and adds the start button.

Method Summary

Modifier and Type	Method	Description
void	actionPerformed(ActionEvent e)
private void	checkCollisions()	Performs collision detection between optimization pulses and bugs, updating scores.
static void	main(String[] args)	Launcher method for testing BugDefense as a standalone application.
protected void	paintComponent(Graphics g)
private void	renderGameOver(Graphics2D g2d)	Renders the Barça Red 'PRODUCTION CRASHED' game over screen.
private void	setupKeyBindings()	Installs left/right arrow and spacebar key bindings.
private void	spawnPulse()	Fires a new optimization pulse from the shield's position.
private void	startGame()	Starts/resets the game state and kicks off the timer.

Methods inherited from class JPanel

getAccessibleContext, getUI, getUIClassID, paramString, setUI, updateUI

Methods inherited from class JComponent

addAncestorListener, addNotify, addVetoableChangeListener, computeVisibleRect, contains, createToolTip, disable, enable, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getActionForKeyStroke, getActionMap, getAlignmentX, getAlignmentY, getAncestorListeners, getAutoscrolls, getBaseline, getBaselineResizeBehavior, getBorder, getBounds, getClientProperty, getComponentGraphics, getComponentPopupMenu, getConditionForKeyStroke, getDebugGraphicsOptions, getDefaultLocale, getFontMetrics, getGraphics, getHeight, getInheritsPopupMenu, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPopupLocation, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getTransferHandler, getVerifyInputWhenFocusTarget, getVetoableChangeListeners, getVisibleRect, getWidth, getX, getY, grabFocus, hide, isDoubleBuffered, isLightweightComponent, isManagingFocus, isOpaque, isOptimizedDrawingEnabled, isPaintingForPrint, isPaintingOrigin, isPaintingTile, isRequestFocusEnabled, isValidateRoot, paint, paintBorder, paintChildren, paintImmediately, paintImmediately, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processKeyBinding, processKeyEvent, processMouseEvent, processMouseMotionEvent, putClientProperty, registerKeyboardAction, registerKeyboardAction, removeAncestorListener, removeNotify, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, requestFocus, requestFocusInWindow, requestFocusInWindow, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setComponentPopupMenu, setDebugGraphicsOptions, setDefaultLocale, setDoubleBuffered, setEnabled, setFocusTraversalKeys, setFont, setForeground, setInheritsPopupMenu, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPreferredSize, setRequestFocusEnabled, setToolTipText, setTransferHandler, setUI, setVerifyInputWhenFocusTarget, setVisible, unregisterKeyboardAction, update

Methods inherited from class Container

add, add, add, add, add, addContainerListener, addImpl, addPropertyChangeListener, addPropertyChangeListener, applyComponentOrientation, areFocusTraversalKeysSet, countComponents, deliverEvent, doLayout, findComponentAt, findComponentAt, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents, getComponentZOrder, getContainerListeners, getFocusTraversalKeys, getFocusTraversalPolicy, getLayout, getMousePosition, insets, invalidate, isAncestorOf, isFocusCycleRoot, isFocusCycleRoot, isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout, list, list, locate, minimumSize, paintComponents, preferredSize, printComponents, processContainerEvent, processEvent, remove, remove, removeAll, removeContainerListener, setComponentZOrder, setFocusCycleRoot, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setLayout, transferFocusDownCycle, validate, validateTree

Methods inherited from class Component

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

Methods inherited from class Object

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

Field Details

timer

private Timer timer

The game loop timer.

shieldX

private int shieldX

The horizontal X position of the player's shield.

shieldY

private final int shieldY

The fixed vertical Y position of the player's shield.

See Also:

• Constant Field Values

shieldWidth

private final int shieldWidth

The width of the shield.

See Also:

• Constant Field Values

shieldHeight

private final int shieldHeight

The height of the shield.

See Also:

• Constant Field Values

playing

private boolean playing

Flag indicating if the game is currently active.

score

private int score

The player's current score.

lives

private int lives

The player's remaining lives.

optimizationPulses

private List<Rectangle> optimizationPulses

The list of active projectile pulses fired by the player.

bugs

private List<Rectangle> bugs

The list of descending logic bug obstacles.

rand

private final Random rand

Random number generator for spawning bug coordinates.

bugSpawnTick

private int bugSpawnTick

Tick counter to regulate enemy spawning frequency.

Constructor Details

BugDefense

public BugDefense()

Constructs a new BugDefense panel and adds the start button.

Method Details

setupKeyBindings

private void setupKeyBindings()

Installs left/right arrow and spacebar key bindings.

startGame

private void startGame()

Starts/resets the game state and kicks off the timer.

spawnPulse

private void spawnPulse()

Fires a new optimization pulse from the shield's position.

actionPerformed

public void actionPerformed(ActionEvent e)

Specified by:

actionPerformed in interface ActionListener

checkCollisions

private void checkCollisions()

Performs collision detection between optimization pulses and bugs, updating scores.

paintComponent

protected void paintComponent(Graphics g)

Overrides:

paintComponent in class JComponent

renderGameOver

private void renderGameOver(Graphics2D g2d)

Renders the Barça Red 'PRODUCTION CRASHED' game over screen.

Parameters:

g2d - The graphics context.

main

public static void main(String[] args)

Launcher method for testing BugDefense as a standalone application.

Parameters:

args - Command line arguments (ignored).