aima.core.environment.connectfour

Class ConnectFourGame

java.lang.Object

aima.core.environment.connectfour.ConnectFourGame

All Implemented Interfaces:

Game<ConnectFourState,java.lang.Integer,java.lang.String>

public class ConnectFourGame
extends java.lang.Object
implements Game<ConnectFourState,java.lang.Integer,java.lang.String>

Provides an implementation of the ConnectFour game which can be used for experiments with the Minimax algorithm.

Author:

Ruediger Lunde

Constructor Summary

Constructors

Constructor and Description
ConnectFourGame()

Method Summary

Modifier and Type	Method and Description
java.util.List<java.lang.Integer>	getActions(ConnectFourState state)
ConnectFourState	getInitialState()
java.lang.String	getPlayer(ConnectFourState state)
java.lang.String	getPlayer(int playerNum) Returns the player corresponding to the specified player number.
int	getPlayerNum(java.lang.String player) Returns the player number corresponding to the specified player.
java.lang.String[]	getPlayers()
ConnectFourState	getResult(ConnectFourState state, java.lang.Integer action)
double	getUtility(ConnectFourState state, java.lang.String player)
boolean	isTerminal(ConnectFourState state)

Methods inherited from class java.lang.Object

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

Constructor Detail

ConnectFourGame

public ConnectFourGame()

Method Detail

getInitialState

public ConnectFourState getInitialState()

Specified by:

getInitialState in interface Game<ConnectFourState,java.lang.Integer,java.lang.String>

getPlayers

public java.lang.String[] getPlayers()

Specified by:

getPlayers in interface Game<ConnectFourState,java.lang.Integer,java.lang.String>

getPlayer

public java.lang.String getPlayer(ConnectFourState state)

Specified by:

getPlayer in interface Game<ConnectFourState,java.lang.Integer,java.lang.String>

getPlayer

public java.lang.String getPlayer(int playerNum)

Returns the player corresponding to the specified player number. For efficiency reasons, ConnectFourStates use numbers instead of strings to identify players.

getPlayerNum

public int getPlayerNum(java.lang.String player)

Returns the player number corresponding to the specified player. For efficiency reasons, ConnectFourStates use numbers instead of strings to identify players.

getActions

public java.util.List<java.lang.Integer> getActions(ConnectFourState state)

Specified by:

getActions in interface Game<ConnectFourState,java.lang.Integer,java.lang.String>

getResult

public ConnectFourState getResult(ConnectFourState state,
                                  java.lang.Integer action)

Specified by:

getResult in interface Game<ConnectFourState,java.lang.Integer,java.lang.String>

isTerminal

public boolean isTerminal(ConnectFourState state)

Specified by:

isTerminal in interface Game<ConnectFourState,java.lang.Integer,java.lang.String>

getUtility

public double getUtility(ConnectFourState state,
                         java.lang.String player)

Specified by:

getUtility in interface Game<ConnectFourState,java.lang.Integer,java.lang.String>