de.tabacha.cgo
Class DefaultGame

java.lang.Object
  de.tabacha.cgo.DefaultGame

All Implemented Interfaces:

BackgroundGame, Constants, Game

public class DefaultGame

extends java.lang.Object

implements Constants, BackgroundGame

Represents one game of conwaygo: two players and a board.
$Id: DefaultGame.java,v 1.16 2004/12/23 21:42:43 mk Exp $

Version:

$Revision: 1.16 $

Threadsafe?

false

Field Summary

Fields inherited from interface de.tabacha.cgo.Constants

BALL, COL_COUNT, DCOL, DOWN, DROW, E, EMPTY, FIRST_DIRECTION, KICK_OFF_FIELD, LAST_DIRECTION, N, NE, NW, OPPOSITE, PIECE, ROW_COUNT, S, SE, SW, UP, UPSIDEDOWN, W

Constructor Summary

DefaultGame(Engine playerUp, Engine playerDown)
Constructor.

Method Summary

void	abort() Interrupts the game.
void	addGameListener(GameListener listener) Adds a GameListener that will be notified of game events.
void	destroy() Kills the threads.
protected void	fireGameAborted(boolean direction, Move move, java.lang.String message) Method to support listener events.
protected void	fireGameEnded(boolean winnerDirection) Method to support listener events.
protected void	fireGameStarted() Method to support listener events.
protected void	fireHasMoved(boolean direction, Move move) Method to support listener events.
protected void	firePlayerChanged(boolean newPlayerDirection) Method to support listener events.
Board	getBoard() Returns the board with the game position.
Engine	getPlayer(boolean direction) Returns the engine that plays in the specified direction.
Engine	getPlayerToMove() Returns the player who has to move now.
boolean	isAlive() Returns true if a game is running.
void	play() Starts the game.
void	removeGameListener(GameListener listener) Removes a GameListener.
void	setPlayer(boolean direction, Engine player) Sets the routine that makes the moves in the specified direction.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultGame

public DefaultGame(Engine playerUp,
                   Engine playerDown)

Constructor.

Method Detail

getPlayer

public Engine getPlayer(boolean direction)

Returns the engine that plays in the specified direction.

Specified by:

getPlayer in interface Game

getPlayerToMove

public Engine getPlayerToMove()

Returns the player who has to move now.

Specified by:

getPlayerToMove in interface Game

setPlayer

public void setPlayer(boolean direction,
                      Engine player)

Sets the routine that makes the moves in the specified direction. Change will not take place for the current move.

Specified by:

setPlayer in interface Game

getBoard

public Board getBoard()

Returns the board with the game position. Never returns zero.

Specified by:

getBoard in interface Game

addGameListener

public void addGameListener(GameListener listener)

Description copied from interface: Game

Adds a GameListener that will be notified of game events.

Specified by:

addGameListener in interface Game

removeGameListener

public void removeGameListener(GameListener listener)

Description copied from interface: Game

Removes a GameListener. Nothing will happen if the listener has not been registered.

Specified by:

removeGameListener in interface Game

fireGameStarted

protected void fireGameStarted()

Method to support listener events.

fireGameAborted

protected void fireGameAborted(boolean direction,
                               Move move,
                               java.lang.String message)

Method to support listener events.

fireGameEnded

protected void fireGameEnded(boolean winnerDirection)

Method to support listener events.

fireHasMoved

protected void fireHasMoved(boolean direction,
                            Move move)

Method to support listener events.

firePlayerChanged

protected void firePlayerChanged(boolean newPlayerDirection)

Method to support listener events.

play

public void play()
          throws java.lang.IllegalStateException

Starts the game.

Specified by:

play in interface BackgroundGame

Throws:

java.lang.IllegalStateException - If a player is null or the game is already running.

isAlive

public boolean isAlive()

Returns true if a game is running.

Specified by:

isAlive in interface BackgroundGame

abort

public void abort()

Interrupts the game.

Specified by:

abort in interface BackgroundGame

destroy

public void destroy()

Kills the threads.

In a normal application, the threads will run forever - as long as the VM. This is intended to save the overhead of initializing and starting new threads for each new game.

But when the applet is destroyed, it has to free system resources even if the VM works on.

Specified by:

destroy in interface BackgroundGame