dualroids
Class SpaceArea

java.lang.Object
  |
  +--java.awt.Component
        |
        +--java.awt.Container
              |
              +--javax.swing.JComponent
                    |
                    +--dualroids.SpaceArea

All Implemented Interfaces:

ImageObserver, MenuContainer, Serializable

final class SpaceArea

extends JComponent

Draws the actual playing field. Takes care of all actual drawing and buffering during the game.

See Also:

Serialized Form

Inner classes inherited from class javax.swing.JComponent

JComponent.AccessibleJComponent, JComponent.ActionStandin, JComponent.IntVector, JComponent.KeyboardState

Inner classes inherited from class java.awt.Container

Container.AccessibleAWTContainer

Inner classes inherited from class java.awt.Component

Component.AccessibleAWTComponent, Component.AWTTreeLock

Field Summary

private Arena	arena An arena object, which is used to fetch the shapes to draw
private static String	BG_GRAPHIC File name of the background image
private Image	bgImage The background image
private static Color	BLEAK_GRAY A semi-transparent gray color for showing end texts
private BufferedImage	buffer1 Background image buffer
private BufferedImage	buffer2 Foreground image buffer, works best with accelerated graphics
private static Color	CLEAR A 'clear' color, fully transparent
private ClientModelConnector	connector The connector to the client
private static Font	GAME_OVER_FONT Font for displaying the 'Game Over' -text
private boolean	gameOver Toggles whether the game is over
private RenderingHints	hints Rendering hints for rendering asteroids, spaceships etc.
private boolean	otherPlayerQuit Toggles whether other player has quit
private static Font	PLAYER_HAS_QUIT_FONT Font for displaying the 'Other player has quit' text
private String	player1 Name of player 1
private String	player2 Name of player 2
private static Font	SCORE_BOARD_FONT Font for displaying scoreboard during the game
private static Font	SCORE_FONT Font for displaying high scores when the game ends
private String	score1 Score of player 1
private String	score2 Score of player 2
private boolean	scoreboardUpdated Toggles whether the score board has been updated
private HighScoreHandler	scoreHandler A high score-handler to save/load highscores
private String	ships1 Number of ships player 1 has left
private String	ships2 Number of ships player 2 has left
static int	WINDOW_HEIGHT Height of the displayable area.
static int	WINDOW_WIDTH Width of the displayable area.

Fields inherited from class javax.swing.JComponent

_bounds, accessibleContext, actionMap, ACTIONMAP_CREATED, alignmentX, alignmentY, ANCESTOR_INPUTMAP_CREATED, ANCESTOR_USING_BUFFER, ancestorInputMap, ancestorNotifier, autoscroller, border, changeSupport, clientProperties, CREATED_DOUBLE_BUFFER, flags, FOCUS_INPUTMAP_CREATED, focusInputMap, HAS_FOCUS, htmlKey, htmlView, inputVerifier, IS_DOUBLE_BUFFERED, IS_OPAQUE, IS_PAINTING_TILE, IS_PRINTING, IS_PRINTING_ALL, KEY_EVENTS_ENABLED, KEYBOARD_BINDINGS_KEY, listenerList, maximumSize, minimumSize, NEXT_FOCUS, paintImmediatelyClip, paintingChild, preferredSize, readObjectCallbacks, REQUEST_FOCUS_DISABLED, tmpRect, TOOL_TIP_TEXT_KEY, ui, uiClassID, UNDEFINED_CONDITION, verifyInputWhenFocusTarget, vetoableChangeSupport, WHEN_ANCESTOR_OF_FOCUSED_COMPONENT, WHEN_FOCUSED, WHEN_IN_FOCUSED_WINDOW, WHEN_IN_FOCUSED_WINDOW_BINDINGS, WIF_INPUTMAP_CREATED, windowInputMap

Fields inherited from class java.awt.Container

component, containerListener, containerSerializedDataVersion, dbg, dispatcher, layoutMgr, listeningBoundsChildren, listeningChildren, maxSize, ncomponents, printing, printingThreads, serialVersionUID

Fields inherited from class java.awt.Component

actionListenerK, adjustmentListenerK, appContext, background, BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, componentListener, componentListenerK, componentOrientation, componentSerializedDataVersion, containerListenerK, cursor, dropTarget, enabled, eventMask, focusListener, focusListenerK, font, foreground, graphicsConfig, hasFocus, height, hierarchyBoundsListener, hierarchyBoundsListenerK, hierarchyListener, hierarchyListenerK, incRate, inputMethodListener, inputMethodListenerK, isInc, isPacked, itemListenerK, keyListener, keyListenerK, LEFT_ALIGNMENT, locale, LOCK, metrics, minSize, mouseListener, mouseListenerK, mouseMotionListener, mouseMotionListenerK, name, nameExplicitlySet, newEventsOnly, ownedWindowK, parent, peer, peerFont, popups, prefSize, privateKey, RIGHT_ALIGNMENT, textListenerK, TOP_ALIGNMENT, valid, visible, width, windowClosingException, windowListenerK, x, y

Fields inherited from interface java.awt.image.ImageObserver

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

Constructor Summary

SpaceArea(ClientModelConnector cmc)
Constructor for this class: initializes all necessary parameters.

Method Summary

void	drawEndCredits(Graphics2D g2_b2) Draws end credits when the game ends.
void	drawScoreBoard() Draws the scoreboard into buffer2, so that scores can float above the asteroids (buffer2 has an alpha channel).
void	gameOver() Called externally when the game is over.
void	otherPlayerQuit() Called externally when the other player has quit.
void	paint(Graphics g) Draws the game screen and updates it.
void	paintScoreBoard() Paints scoreboard into buffer1 with the background image.
void	registerArena(Arena arena) Registers an Arena for painting.
void	updateScoreBoard(String player1, String player2, String score1, String score2, String ships1, String ships2) Updates player names, number of ships and current score.

Methods inherited from class javax.swing.JComponent

_paintImmediately, , addAncestorListener, addNotify, addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, adjustPaintFlags, alwaysOnTop, checkIfChildObscuredBySibling, clearFocusOwners, componentInputMapChanged, computeVisibleRect, computeVisibleRect, compWriteObjectNotify, contains, createToolTip, disable, enable, enableSerialization, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, getAccessibleContext, getActionForKeyStroke, getActionMap, getActionMap, getAlignmentX, getAlignmentY, getAutoscrolls, getBorder, getBounds, getClientProperties, getClientProperty, getComponentGraphics, getConditionForKeyStroke, getCreatedDoubleBuffer, getDebugGraphicsOptions, getFlag, getGraphics, getHeight, getInputMap, getInputMap, getInputMap, getInputVerifier, getInsets, getInsets, getListeners, getLocation, getMaximumSize, getMinimumSize, getNextFocusableComponent, getPreferredSize, getRegisteredKeyStrokes, getRootPane, getSize, getToolTipLocation, getToolTipText, getToolTipText, getTopLevelAncestor, getUIClassID, getVerifyInputWhenFocusTarget, getVisibleRect, getWidth, getX, getY, grabFocus, hasFocus, hide, isDoubleBuffered, isFocusCycleRoot, isFocusTraversable, isLightweightComponent, isManagingFocus, isMaximumSizeSet, isMinimumSizeSet, isOpaque, isOptimizedDrawingEnabled, isPaintingTile, isPreferredSizeSet, isRequestFocusEnabled, isValidateRoot, paintBorder, paintChildren, paintComponent, paintImmediately, paintImmediately, paintWithBuffer, paramString, print, printAll, printBorder, printChildren, printComponent, processComponentKeyEvent, processFocusEvent, processKeyBinding, processKeyBindings, processKeyBindingsForAllComponents, processKeyEvent, processMouseMotionEvent, putClientProperty, readObject, rectangleIsObscured, rectangleIsObscuredBySibling, registerKeyboardAction, registerKeyboardAction, registerWithKeyboardManager, registerWithKeyboardManager, removeAncestorListener, removeNotify, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, repaint, repaint, requestDefaultFocus, requestFocus, resetKeyboardActions, reshape, revalidate, scrollRectToVisible, setActionMap, setAlignmentX, setAlignmentY, setAutoscrolls, setBackground, setBorder, setCreatedDoubleBuffer, setDebugGraphicsOptions, setDoubleBuffered, setEnabled, setFlag, setFont, setForeground, setInputMap, setInputVerifier, setMaximumSize, setMinimumSize, setNextFocusableComponent, setOpaque, setPaintingChild, setPreferredSize, setRequestFocusEnabled, setToolTipText, setUI, setVerifyInputWhenFocusTarget, setVisible, shouldDebugGraphics, superProcessMouseMotionEvent, unregisterKeyboardAction, unregisterWithKeyboardManager, unregisterWithKeyboardManager, update, updateUI, writeObject

Methods inherited from class java.awt.Container

add, add, add, add, add, addContainerListener, addImpl, adjustListeningChildren, applyOrientation, checkGD, countComponents, createChildHierarchyEvents, createHierarchyEvents, deliverEvent, dispatchEventImpl, dispatchEventToSelf, doLayout, eventEnabled, findComponentAt, findComponentAt, findComponentAt, getAccessibleAt, getAccessibleChild, getAccessibleChildrenCount, getComponent, getComponentAt, getComponentAt, getComponentCount, getComponents_NoClientCode, getComponents, getLayout, getMouseEventTarget, getWindow, initIDs, insets, invalidate, invalidateTree, isAncestorOf, layout, lightweightPaint, lightweightPrint, list, list, locate, minimumSize, nextFocus, numListening, paintComponents, paintHeavyweightComponents, postProcessKeyEvent, postsOldMouseEvents, preferredSize, preProcessKeyEvent, printComponents, printHeavyweightComponents, processContainerEvent, processEvent, proxyEnableEvents, proxyRequestFocus, remove, remove, removeAll, removeContainerListener, setFocusOwner, setLayout, transferFocus, validate, validateTree

Methods inherited from class java.awt.Component

action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, areInputMethodsEnabled, bounds, checkImage, checkImage, checkWindowClosingException, coalesceEvents, constructComponentName, contains, createImage, createImage, disableEvents, dispatchEvent, enable, enableEvents, enableInputMethods, getAccessibleIndexInParent, getAccessibleStateSet, getBackground, getBounds, getColorModel, getComponentOrientation, getCursor, getDropTarget, getFont_NoClientCode, getFont, getFontMetrics, getForeground, getGraphicsConfiguration, getInputContext, getInputMethodRequests, getLocale, getLocation, getLocationOnScreen_NoTreeLock, getLocationOnScreen, getName, getNativeContainer, getParent_NoClientCode, getParent, getPeer, getSize, getToolkit, getToolkitImpl, getTreeLock, getWindowForObject, gotFocus, handleEvent, imageUpdate, inside, isDisplayable, isEnabled, isEnabledImpl, isLightweight, isRecursivelyVisible, isShowing, isValid, isVisible, keyDown, keyUp, list, list, list, location, lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove, mouseUp, move, nextFocus, paintAll, postEvent, prepareImage, prepareImage, processComponentEvent, processHierarchyBoundsEvent, processHierarchyEvent, processInputMethodEvent, processMouseEvent, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, repaint, repaint, repaint, resetGC, resize, resize, setBounds, setBounds, setComponentOrientation, setCursor, setDropTarget, setLocale, setLocation, setLocation, setName, setSize, setSize, show, show, size, toString, transferFocus

Methods inherited from class java.lang.Object

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

Field Detail

WINDOW_WIDTH

public static final int WINDOW_WIDTH

Width of the displayable area. Must match Arena.HEIGHT

WINDOW_HEIGHT

public static final int WINDOW_HEIGHT

Height of the displayable area. Must match Arena.WIDTH

BG_GRAPHIC

private static final String BG_GRAPHIC

File name of the background image

SCORE_BOARD_FONT

private static final Font SCORE_BOARD_FONT

Font for displaying scoreboard during the game

SCORE_FONT

private static final Font SCORE_FONT

Font for displaying high scores when the game ends

PLAYER_HAS_QUIT_FONT

private static final Font PLAYER_HAS_QUIT_FONT

Font for displaying the 'Other player has quit' text

GAME_OVER_FONT

private static final Font GAME_OVER_FONT

Font for displaying the 'Game Over' -text

CLEAR

private static final Color CLEAR

A 'clear' color, fully transparent

BLEAK_GRAY

private static final Color BLEAK_GRAY

A semi-transparent gray color for showing end texts

connector

private ClientModelConnector connector

The connector to the client

player1

private String player1

Name of player 1

player2

private String player2

Name of player 2

score1

private String score1

Score of player 1

score2

private String score2

Score of player 2

ships1

private String ships1

Number of ships player 1 has left

ships2

private String ships2

Number of ships player 2 has left

bgImage

private Image bgImage

The background image

scoreboardUpdated

private boolean scoreboardUpdated

Toggles whether the score board has been updated

otherPlayerQuit

private boolean otherPlayerQuit

Toggles whether other player has quit

gameOver

private boolean gameOver

Toggles whether the game is over

hints

private final RenderingHints hints

Rendering hints for rendering asteroids, spaceships etc.

buffer1

private BufferedImage buffer1

Background image buffer

buffer2

private BufferedImage buffer2

Foreground image buffer, works best with accelerated graphics

arena

private Arena arena

An arena object, which is used to fetch the shapes to draw

scoreHandler

private HighScoreHandler scoreHandler

A high score-handler to save/load highscores

Constructor Detail

SpaceArea

public SpaceArea(ClientModelConnector cmc)

Constructor for this class: initializes all necessary parameters.

Parameters:

cmc - The ClientModelConnector for the client whose screen this is displayed on.

Method Detail

registerArena

public void registerArena(Arena arena)

Registers an Arena for painting.

Parameters:

arena - the Arena to be painted

otherPlayerQuit

public final void otherPlayerQuit()

Called externally when the other player has quit. Sets the toggles so the appropriate texts are drawn.

gameOver

public final void gameOver()

Called externally when the game is over. Sets the toggles so the appropriate texts are drawn.

updateScoreBoard

public final void updateScoreBoard(String player1,
                                   String player2,
                                   String score1,
                                   String score2,
                                   String ships1,
                                   String ships2)

Updates player names, number of ships and current score. Sets the toggles so the scoreboard is drawn.

Parameters:

player1 - The name of player 1

player2 - The name of player 2

score1 - The score of player 1

score2 - The score of player 2

ships1 - Number of ships player 1 has remaining

ships2 - Number of ships player 2 has remaining

drawEndCredits

public void drawEndCredits(Graphics2D g2_b2)

Draws end credits when the game ends. consumes memory far faster than can be freed, but as the game has ended anyway, it doesn't matter much.

Parameters:

g2_b2 - The graphics context which to paint into

paintScoreBoard

public void paintScoreBoard()

Paints scoreboard into buffer1 with the background image. The scores will thus be under the asteroids, but on slower machines it's noticeably faster than using drawScoreBoard().

drawScoreBoard

public void drawScoreBoard()

Draws the scoreboard into buffer2, so that scores can float above the asteroids (buffer2 has an alpha channel). On some machines, it slows redrawing down considerably.

paint

public void paint(Graphics g)

Draws the game screen and updates it.

Overrides:

paint in class JComponent

Parameters:

g - The graphics context which to paint into