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java.lang.Objectjava.awt.Component
java.awt.Container
java.awt.Window
java.awt.Frame
javax.swing.JFrame
csta.ibm.pong.Game
public abstract class Game
An abstract Game class which can be built into Pong.
The default controls are for "Player 1" to move left and right with the
'Z' and 'X' keys, and "Playr 2" to move left and right with the 'N' and
'M' keys.
Before the Game begins, the setup
method is executed. This will
allow the programmer to add any objects to the game and set them up. When the
game begins, the act
method is executed every millisecond. This
will allow the programmer to check for user input and respond to it.
GameObject
,
Serialized FormField Summary |
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Fields inherited from class javax.swing.JFrame |
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EXIT_ON_CLOSE |
Fields inherited from class java.awt.Frame |
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CROSSHAIR_CURSOR, DEFAULT_CURSOR, E_RESIZE_CURSOR,
HAND_CURSOR, ICONIFIED, MAXIMIZED_BOTH, MAXIMIZED_HORIZ,
MAXIMIZED_VERT, MOVE_CURSOR, N_RESIZE_CURSOR, NE_RESIZE_CURSOR, NORMAL,
NW_RESIZE_CURSOR, S_RESIZE_CURSOR, SE_RESIZE_CURSOR, SW_RESIZE_CURSOR,
TEXT_CURSOR, W_RESIZE_CURSOR, WAIT_CURSOR |
Fields inherited from class java.awt.Component |
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BOTTOM_ALIGNMENT, CENTER_ALIGNMENT, LEFT_ALIGNMENT, RIGHT_ALIGNMENT, TOP_ALIGNMENT |
Fields inherited from interface javax.swing.WindowConstants |
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DISPOSE_ON_CLOSE, DO_NOTHING_ON_CLOSE, HIDE_ON_CLOSE |
Fields inherited from interface java.awt.image.ImageObserver |
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ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH |
Constructor Summary | |
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Game()
The default constructor for the game. |
Method Summary | |
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abstract void |
act()
When the game begins, this method will automatically be executed every millisecond This may be used as a control method for checking user input and collision between any game objects |
void |
add(GameObject o)
Adds a game object to the screen Any added objects will have their act method called every
millisecond |
int |
getFieldHeight()
Gets the pixel height of the visible playing field |
int |
getFieldWidth()
Gets the pixel width of the visible playing field |
void |
initComponents()
Sets up the game and any objects. |
boolean |
MKeyPressed()
Returns true if the 'M' key is being pressed down |
boolean |
NKeyPressed()
Returns true if the 'N' key is being pressed down |
void |
p1Wins()
Displays a dialog that says "Player 1 Wins!" |
void |
p2Wins()
Displays a dialog that says "Player 2 Wins!" |
void |
remove(GameObject o)
Removes a game object from the screen |
void |
setBackground(java.awt.Color c)
Sets the background color of the playing field The default color is black |
void |
setDelay(int delay)
Sets the millisecond delay between calls to act methods. |
abstract void |
setup()
When implemented, this will allow the programmer to initialize the game before it begins running Adding objects to the game and setting their initial positions should be done here. |
void |
startGame()
Starts updates to the game The game should automatically start. |
void |
stopGame()
Stops updates to the game This can act like a "pause" method |
boolean |
XKeyPressed()
Returns true if the 'X' key is being pressed down |
boolean |
ZKeyPressed()
Returns true if the 'Z' key is being pressed down |
Methods inherited from class javax.swing.JFrame |
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getAccessibleContext, getContentPane,
getDefaultCloseOperation, getGlassPane, getJMenuBar, getLayeredPane,
getRootPane, isDefaultLookAndFeelDecorated, remove, setContentPane,
setDefaultCloseOperation, setDefaultLookAndFeelDecorated, setGlassPane,
setIconImage, setJMenuBar, setLayeredPane, setLayout, update |
Methods inherited from class java.awt.Frame |
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addNotify, getCursorType, getExtendedState, getFrames,
getIconImage, getMaximizedBounds, getMenuBar, getState, getTitle,
isResizable, isUndecorated, remove, removeNotify, setCursor,
setExtendedState, setMaximizedBounds, setMenuBar, setResizable,
setState, setTitle, setUndecorated |
Methods inherited from class java.awt.Window |
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addPropertyChangeListener, addPropertyChangeListener,
addWindowFocusListener, addWindowListener, addWindowStateListener,
applyResourceBundle, applyResourceBundle, createBufferStrategy,
createBufferStrategy, dispose, getBufferStrategy,
getFocusableWindowState, getFocusCycleRootAncestor, getFocusOwner,
getFocusTraversalKeys, getGraphicsConfiguration, getInputContext,
getListeners, getLocale, getMostRecentFocusOwner, getOwnedWindows,
getOwner, getToolkit, getWarningString, getWindowFocusListeners,
getWindowListeners, getWindowStateListeners, hide, isActive,
isAlwaysOnTop, isFocusableWindow, isFocusCycleRoot, isFocused,
isLocationByPlatform, isShowing, pack, postEvent,
removeWindowFocusListener, removeWindowListener,
removeWindowStateListener, setAlwaysOnTop, setBounds, setCursor,
setFocusableWindowState, setFocusCycleRoot, setLocationByPlatform,
setLocationRelativeTo, show, toBack, toFront |
Methods inherited from class java.awt.Container |
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add, add, add, add, add, addContainerListener,
applyComponentOrientation, areFocusTraversalKeysSet, countComponents,
deliverEvent, doLayout, findComponentAt, findComponentAt,
getAlignmentX, getAlignmentY, getComponent, getComponentAt,
getComponentAt, getComponentCount, getComponents, getComponentZOrder,
getContainerListeners, getFocusTraversalPolicy, getInsets, getLayout,
getMaximumSize, getMinimumSize, getMousePosition, getPreferredSize,
insets, invalidate, isAncestorOf, isFocusCycleRoot,
isFocusTraversalPolicyProvider, isFocusTraversalPolicySet, layout,
list, list, locate, minimumSize, paint, paintComponents, preferredSize,
print, printComponents, remove, removeAll, removeContainerListener,
setComponentZOrder, setFocusTraversalKeys, setFocusTraversalPolicy,
setFocusTraversalPolicyProvider, setFont, transferFocusBackward,
transferFocusDownCycle, validate |
Methods inherited from class java.awt.Component |
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action, add, addComponentListener, addFocusListener,
addHierarchyBoundsListener, addHierarchyListener,
addInputMethodListener, addKeyListener, addMouseListener,
addMouseMotionListener, addMouseWheelListener, bounds, checkImage,
checkImage, contains, contains, createImage, createImage,
createVolatileImage, createVolatileImage, disable, dispatchEvent,
enable, enable, enableInputMethods, firePropertyChange,
firePropertyChange, firePropertyChange, firePropertyChange,
firePropertyChange, firePropertyChange, getBackground, getBounds,
getBounds, getColorModel, getComponentListeners,
getComponentOrientation, getCursor, getDropTarget, getFocusListeners,
getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground,
getGraphics, getHeight, getHierarchyBoundsListeners,
getHierarchyListeners, getIgnoreRepaint, getInputMethodListeners,
getInputMethodRequests, getKeyListeners, getLocation, getLocation,
getLocationOnScreen, getMouseListeners, getMouseMotionListeners,
getMousePosition, getMouseWheelListeners, getName, getParent, getPeer,
getPropertyChangeListeners, getPropertyChangeListeners, getSize,
getSize, getTreeLock, getWidth, getX, getY, gotFocus, handleEvent,
hasFocus, imageUpdate, inside, isBackgroundSet, isCursorSet,
isDisplayable, isDoubleBuffered, isEnabled, isFocusable, isFocusOwner,
isFocusTraversable, isFontSet, isForegroundSet, isLightweight,
isMaximumSizeSet, isMinimumSizeSet, isOpaque, isPreferredSizeSet,
isValid, isVisible, keyDown, keyUp, list, list, list, location,
lostFocus, mouseDown, mouseDrag, mouseEnter, mouseExit, mouseMove,
mouseUp, move, nextFocus, paintAll, prepareImage, prepareImage,
printAll, removeComponentListener, removeFocusListener,
removeHierarchyBoundsListener, removeHierarchyListener,
removeInputMethodListener, removeKeyListener, removeMouseListener,
removeMouseMotionListener, removeMouseWheelListener,
removePropertyChangeListener, removePropertyChangeListener, repaint,
repaint, repaint, repaint, requestFocus, requestFocusInWindow, reshape,
resize, resize, setBounds, setComponentOrientation, setDropTarget,
setEnabled, setFocusable, setFocusTraversalKeysEnabled, setForeground,
setIgnoreRepaint, setLocale, setLocation, setLocation, setMaximumSize,
setMinimumSize, setName, setPreferredSize, setSize, setSize,
setVisible, show, size, toString, transferFocus, transferFocusUpCycle |
Methods inherited from class java.lang.Object |
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equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface java.awt.MenuContainer |
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getFont, postEvent |
Constructor Detail |
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public Game()
Method Detail |
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public boolean ZKeyPressed()
true
if the 'Z' key is being pressed down
true
if the 'Z' key is being pressed downpublic boolean XKeyPressed()
true
if the 'X' key is being pressed down
true
if the 'X' key is being pressed downpublic boolean NKeyPressed()
true
if the 'N' key is being pressed down
true
if the 'N' key is being pressed downpublic boolean MKeyPressed()
true
if the 'M' key is being pressed down
true
if the 'M' key is being pressed downpublic abstract void setup()
GameObject
public abstract void act()
public void initComponents()
main
method after the frame becomes visible.
public void add(GameObject o)
act
method called every
millisecond
o
- the GameObject
to add.GameObject.act()
public void remove(GameObject o)
o
- the GameObject
to removeGameObject
public void setDelay(int delay)
act
methods.
Increasing the delay will make the game run "slower." The default delay
is 1 millisecond.
delay
- the number of milliseconds between calls to act
act()
,
GameObject.act()
public void setBackground(java.awt.Color c)
setBackground
in class java.awt.Component
Color
public void startGame()
stopGame()
public void stopGame()
startGame()
public void p1Wins()
public void p2Wins()
public int getFieldWidth()
public int getFieldHeight()
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