Package   Class  Use  Tree  Deprecated  Index  Help 
 PREV CLASS   NEXT CLASS FRAMES    NO FRAMES    
SUMMARY: NESTED | FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD

com.jpemartin.jgt
Class BaseApp

java.lang.Object
  extended by java.awt.Component
      extended by java.awt.Container
          extended by java.awt.Panel
              extended by java.applet.Applet
                  extended by javax.swing.JApplet
                      extended by com.jpemartin.jgt.BaseApp
All Implemented Interfaces:
HasKeyboard, HasSize, java.awt.image.ImageObserver, java.awt.MenuContainer, java.io.Serializable, java.lang.Runnable, javax.accessibility.Accessible, javax.swing.RootPaneContainer
public abstract class BaseApp
extends javax.swing.JApplet
implements java.lang.Runnable, HasKeyboard, HasSize

This is a base class you can extend to create a Java game. It allows your game to be run either as an applet or as an application. A good starting point for your code would be this: 

  public class MyGame extends BaseApp {

   public String getName() {
      // text in title bar when game is run as an application
      return "MyGame";
   }

   // width of the window 
   public int getWidth() { return ... }

   // height of the window
   public int getHeight() { return ... }

   // main game loop
   public void run() {
      createImageAndGraphics();
      while (_gameRunning) {
         drawWorld();
         showAndWait();
      }
   }

   // draw what the player sees
   public void drawWorld() {
      if (null==_dbImage) return;
      synchronized(_dbImage) {
         _dbg.setColor(Color.GREEN);
         _dbg.fillRect(0, 0, getWidth(), getHeight());

      }
   }

   // don't forget to replace "MyGame" here if you change the name of your class
   static public void main(String argv[]) { new MyGame().runAsApplet(argv); }
}

See Also:
Serialized Form

Field Summary
 java.awt.Graphics _dbg
          a Graphics to draw in _dbImage.
 java.awt.Image _dbImage
          the image that's shown on the screen.
 boolean _gameRunning
          set to true initially, and to false when the user clicks the "close" button.
 
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
BaseApp()
           
 
Method Summary
 void createImageAndGraphics()
          The first time you call this, it creates _dbImage and _dbg.
abstract  int getHeight()
          You must rewrite this function to return the height of the game window
 KeyboardStatus getKeyboardStatus()
          for HasKeyboard
abstract  java.lang.String getName()
          You must write this function, return a string that decsribes the game.
abstract  int getWidth()
          You must rewrite this function to return the width of the game window
 void paint(java.awt.Graphics g)
          called by AWT when the picture needs to be refreshed.
 void runAsApplet(java.lang.String[] argv)
          This function helps you run the game as an application rather than an applet.
 void showAndWait()
          Call this function every time you're done drawing one frame.
 void start()
          called when the applet starts.
 
Methods inherited from class javax.swing.JApplet
getAccessibleContext, getContentPane, getGlassPane, getJMenuBar, getLayeredPane, getRootPane, remove, setContentPane, setGlassPane, setJMenuBar, setLayeredPane, setLayout, update
 
Methods inherited from class java.applet.Applet
destroy, getAppletContext, getAppletInfo, getAudioClip, getAudioClip, getCodeBase, getDocumentBase, getImage, getImage, getLocale, getParameter, getParameterInfo, init, isActive, newAudioClip, play, play, resize, resize, setStub, showStatus, 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, paintComponents, preferredSize, print, printComponents, remove, removeAll, removeContainerListener, removeNotify, setComponentZOrder, setFocusCycleRoot, setFocusTraversalKeys, setFocusTraversalPolicy, setFocusTraversalPolicyProvider, setFont, transferFocusBackward, transferFocusDownCycle, validate
 
Methods inherited from class java.awt.Component
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, getFocusCycleRootAncestor, getFocusListeners, getFocusTraversalKeysEnabled, getFont, getFontMetrics, getForeground, getGraphics, getGraphicsConfiguration, getHierarchyBoundsListeners, getHierarchyListeners, getIgnoreRepaint, getInputContext, getInputMethodListeners, getInputMethodRequests, getKeyListeners, getLocation, getLocation, getLocationOnScreen, getMouseListeners, getMouseMotionListeners, getMousePosition, getMouseWheelListeners, getParent, getPeer, getPropertyChangeListeners, getPropertyChangeListeners, getSize, getSize, getToolkit, getTreeLock, 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, remove, removeComponentListener, removeFocusListener, removeHierarchyBoundsListener, removeHierarchyListener, removeInputMethodListener, removeKeyListener, removeMouseListener, removeMouseMotionListener, removeMouseWheelListener, removePropertyChangeListener, removePropertyChangeListener, repaint, repaint, repaint, repaint, requestFocus, 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
equals, getClass, hashCode, noti