wyvern.lib.classes.games
Class Chess

java.lang.Object
  wyvern.kernel.properties.PList
      wyvern.kernel.maps.MapObject
          wyvern.lib.classes.games.Chess

All Implemented Interfaces:

Broadcaster, GameObject, MethodHookable, MouseInterest, PropertyList

public class Chess

extends MapObject

implements MouseInterest

This class implements a 2-player chess game with human-sized pieces. When placed in a map at location (x,y), it treats (x,y) as its upper-left corner, creates an 8x8 chessboard, and populates it with pieces. It also creates 2 "thrones" for players to sit in and begin a game.

Version:

1.0, Sep 21, 1998

Author:

Steve Yegge

Field Summary

static int	BISHOP
static int	KING
static int	KNIGHT
static int	PAWN
static int	QUEEN
static int	ROOK

Fields inherited from class wyvern.kernel.maps.MapObject

IN_MAP_EDITOR, listenerList_

Fields inherited from class wyvern.kernel.properties.PList

readOnly_

Fields inherited from interface wyvern.lib.PropertyList

PROPERTY_PACKAGE

Constructor Summary

Chess()

Method Summary

Rectangle	getBounds() Returns the bounds of the board object.
int[]	getImageDescriptors() Returns the board's appearance.
wyvern.lib.classes.games.ChessPiece	getPiece(int x, int y) Returns the chess piece at the specified board location.
wyvern.lib.classes.games.ChessPiece	getPiece(Point loc) Returns the chess piece at the specified map location.
int	getTile(int xloc, int yloc) Overrides MapObject.getTile().
void	handleMouse(Commandable agent, Point click) Moves a piece.
void	initialize() Adds chess-specific properties.
void	initPieces() Creates all the pieces and sets them in their starting places.
boolean	isEmpty(int x, int y) Returns true if the specified board location is empty.
void	mouseClicked(MouseCommandEvent event) Handles a mouse-click.
void	restart() Clears the current game and starts over.
void	setMap(GameMap map, int x, int y) Sets the chess board in the map.
void	trySelection(Commandable agent, Point click) Attempts to select a game piece.

Methods inherited from class wyvern.kernel.maps.MapObject

addContainerChangeListener, addDefaultProperty, addMapChangeListener, addMapMotionListener, addMethodHook, addMotionTracker, addObjectTracker, addPrefix, addSuffix, addToMap, bless, broadcast, broadcast, broadcast, broadcast, broadcast, canEnter, canEnterBlockedBy, canMove, canMove, canMoveBlockedBy, canMoveBlockedBy, canMoveTo, canMoveToBlockedBy, checkDrop, curse, cycleFrame, destroy, ensureListenerList, ensureWeight, externalize, fireContainerEntered, fireContainerExited, fireEnteredMap, fireExitedMap, fireMovedInMap, getAlpha, getAppearance, getArchetype, getBaseName, getBaseWeight, getBitmap, getCanonicalClassName, getCategory, getContainer, getCreator, getDamagedDescription, getDescription, getDirection, getGenderPossessive, getGenderPronoun, getImage, getImageDescriptor, getLayer, getLocations, getMap, getMapLink, getMaterial, getMaterialDescription, getMover, getOwningPlayer, getParentMap, getPrefixes, getQuantity, getReferenceLoc, getRelativeLocs, getShortDesc, getSuffixes, getTile, getValue, getWeight, groupString, inContainer, initLocs, inMapEditor, invalidate, invalidateImage, invalidateParent, invalidateText, isAnimated, isAttackable, isBlessed, isCommandable, isCursed, isDamned, isGroupable, isIdentified, isMonster, isMonsterOrPlayer, isPlayer, isTerrain, isUncursed, isUnpaid, isWizard, makeClone, markPaid, markUnpaid, move, occupies, positionAt, positionAtMap, remove, removeContainerChangeListener, removeFromMap, removeMapChangeListener, removeMapMotionListener, removeMethodHook, removeMotionTracker, removeObjectTracker, removePrefix, removeSuffix, runMethodHook, setAlpha, setAnimated, setBitmap, setCategory, setContainer, setDefaultBitmap, setDefaultCategory, setDefaultDesc, setDefaultImage, setDefaultIntProperty, setDefaultLayer, setDefaultMaterial, setDefaultProperty, setDefaultShortDesc, setDirection, setImage, setImage, setLayer, setLocations, setMapLink, setQuantity, setShape, setSize, setTransientSize, setWeight, setWeight, teleport, toString, updateMapLocation

Methods inherited from class wyvern.kernel.properties.PList

addProperty, addTransientProperty, adjustDoubleProperty, adjustIntProperty, adjustLongProperty, adjustTransientDoubleProperty, adjustTransientIntProperty, adjustTransientLongProperty, countLocalProperties, debugProperties, dismantlePropertyList, getDoubleProperty, getInheritedProperty, getInteger, getIntProperty, getLocalProperties, getLocalProperty, getLongProperty, getParent, getPersistentDoubleProperty, getPersistentIntProperty, getPersistentLocalProperties, getPersistentLongProperty, getPersistentProperty, getProfilingInfo, getProperties, getProperties, getPropertiesIncludingTransients, getPropertiesIncludingTransients, getProperty, getSerializableProperties, getSerializableProperty, getStringProperty, getTransientDoubleProperty, getTransientIntProperty, getTransientLongProperty, getTransientProperties, getTransientProperty, hasLocalProperty, hasPersistentProperty, hasProperty, hasTransientProperty, inheritProperty, isReadOnly, isRemoved, isTransientlyRemoved, printLocalProperties, printProperties, printProperties, printTransientProperties, removeProperty, removeTransientProperty, setDoubleProperty, setIntProperty, setLongProperty, setParent, setProperty, setReadOnly, setTransientDoubleProperty, setTransientIntProperty, setTransientLongProperty, setTransientProperty, toString, transientlyRemoveProperty

Methods inherited from class java.lang.Object

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

Methods inherited from interface wyvern.lib.PropertyList

addProperty, addTransientProperty, adjustDoubleProperty, adjustIntProperty, adjustLongProperty, adjustTransientDoubleProperty, adjustTransientIntProperty, adjustTransientLongProperty, countLocalProperties, getDoubleProperty, getInheritedProperty, getIntProperty, getLocalProperties, getLocalProperty, getLongProperty, getParent, getPersistentDoubleProperty, getPersistentIntProperty, getPersistentLocalProperties, getPersistentLongProperty, getPersistentProperty, getProperties, getProperties, getPropertiesIncludingTransients, getPropertiesIncludingTransients, getProperty, getSerializableProperties, getSerializableProperty, getStringProperty, getTransientDoubleProperty, getTransientIntProperty, getTransientLongProperty, getTransientProperties, getTransientProperty, hasLocalProperty, hasPersistentProperty, hasProperty, hasTransientProperty, inheritProperty, isReadOnly, isRemoved, isTransientlyRemoved, printLocalProperties, printProperties, printProperties, printTransientProperties, removeProperty, removeTransientProperty, setDoubleProperty, setIntProperty, setLongProperty, setParent, setProperty, setReadOnly, setTransientDoubleProperty, setTransientIntProperty, setTransientLongProperty, setTransientProperty, toString, transientlyRemoveProperty

Field Detail

KING

public static final int KING

See Also:

Constant Field Values

QUEEN

public static final int QUEEN

See Also:

Constant Field Values

BISHOP

public static final int BISHOP

See Also:

Constant Field Values

KNIGHT

public static final int KNIGHT

See Also:

Constant Field Values

ROOK

public static final int ROOK

See Also:

Constant Field Values

PAWN

public static final int PAWN

See Also:

Constant Field Values

Constructor Detail

Chess

public Chess()

Method Detail

initialize

public void initialize()

Adds chess-specific properties.

Specified by:

initialize in interface GameObject

Overrides:

initialize in class MapObject

setMap

public void setMap(GameMap map,
                   int x,
                   int y)

Sets the chess board in the map.

Specified by:

setMap in interface GameObject

Overrides:

setMap in class MapObject

getImageDescriptors

public int[] getImageDescriptors()

Returns the board's appearance.

Specified by:

getImageDescriptors in interface GameObject

Overrides:

getImageDescriptors in class MapObject

Returns:

an int array of (x, y, database tile number) triples.

getTile

public int getTile(int xloc,
                   int yloc)

Overrides MapObject.getTile(). Required for all disjoint objects.

Specified by:

getTile in interface GameObject

Overrides:

getTile in class MapObject

Parameters:

xloc - map x location

yloc - map y location

Returns:

tile number

getBounds

public Rectangle getBounds()

Returns the bounds of the board object.

Specified by:

getBounds in interface GameObject

Overrides:

getBounds in class MapObject

initPieces

public void initPieces()

Creates all the pieces and sets them in their starting places.

mouseClicked

public void mouseClicked(MouseCommandEvent event)

Handles a mouse-click.

Specified by:

mouseClicked in interface MouseInterest

Parameters:

event - the mouse event

handleMouse

public void handleMouse(Commandable agent,
                        Point click)

Moves a piece.

Parameters:

agent - the player doing the move

click - the point where they clicked, in map coordinates

trySelection

public void trySelection(Commandable agent,
                         Point click)

Attempts to select a game piece.

getPiece

public wyvern.lib.classes.games.ChessPiece getPiece(Point loc)

Returns the chess piece at the specified map location.

Parameters:

loc - the board position (in MAP coordinates, not board coords)

Returns:

the piece there, or null if the position is unoccupied

getPiece

public wyvern.lib.classes.games.ChessPiece getPiece(int x,
                                                    int y)

Returns the chess piece at the specified board location.

Parameters:

x - the board x position in BOARD coordinates

y - the board y position in BOARD coordinates

isEmpty

public boolean isEmpty(int x,
                       int y)

Returns true if the specified board location is empty.

Parameters:

x - the x position in BOARD coordinates, where the upper-left corner (black queen's rook) is (0, 0).

y - the y position in BOARD coordinates

restart

public void restart()

Clears the current game and starts over.