viergewinnt

Class AbstractField

java.lang.Object

viergewinnt.AbstractField

Direct Known Subclasses:

BitField, BitFieldClumsy

public abstract class AbstractField
extends java.lang.Object

Abstract Field Class implementing some basic methods and defining basic methods every playing field must have.

Field Summary

Fields

Modifier and Type	Field and Description
int	height Width and height of the playing field
protected int	turnCounter Number of turns played
int	width Width and height of the playing field

Constructor Summary

Constructors

Constructor and Description
AbstractField(int w, int h)

Method Summary

Methods

Modifier and Type	Method and Description
boolean	checkDraw() Returns true if the board is full (and nobody won)
abstract boolean	checkWin(int player) Check if player (0 or 1) has won
abstract double	evaluatePlayerZero() Heuristic to evaluate the quality of the position for player 0
abstract int	getField(int x, int y) What is on field x,y?
int	getPlayer() Returns the player who plays next
int	getTurnCounter() Returns the number of turns already played
abstract boolean	isOpen(int column) Checks if there can a coin be dropped into
abstract void	makeMove(int column) Drop a coin in column
java.lang.String	toString() Build a string representing the current board
abstract void	undoMove() Undo last move

Methods inherited from class java.lang.Object

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

Field Detail

width

public final int width

Width and height of the playing field

height

public final int height

Width and height of the playing field

turnCounter

protected int turnCounter

Number of turns played

Constructor Detail

AbstractField

public AbstractField(int w,
             int h)

Method Detail

makeMove

public abstract void makeMove(int column)

Drop a coin in column

Parameters:

column -

undoMove

public abstract void undoMove()

Undo last move

checkWin

public abstract boolean checkWin(int player)

Check if player (0 or 1) has won

Parameters:

player -

Returns:

evaluatePlayerZero

public abstract double evaluatePlayerZero()

Heuristic to evaluate the quality of the position for player 0

Returns:

value between -1.0 and +1.0

getField

public abstract int getField(int x,
           int y)

What is on field x,y?

Parameters:

x -

y -

Returns:

-1 (empty), 0 (player 1) or 1 (player 2)

isOpen

public abstract boolean isOpen(int column)

Checks if there can a coin be dropped into

Parameters:

column -

Returns:

checkDraw

public boolean checkDraw()

Returns true if the board is full (and nobody won)

Returns:

getTurnCounter

public int getTurnCounter()

Returns the number of turns already played

Returns:

getPlayer

public int getPlayer()

Returns the player who plays next

Returns:

0 (player 1) or 1 (player 2)

toString

public java.lang.String toString()

Build a string representing the current board

Overrides:

toString in class java.lang.Object

Returns: