org.moyoman.module.lifeanddeath
Interface LDStatus

public interface LDStatus

The class that implements this interface represents the life and death status of a group of stones.

Field Summary

static short	ALIVE The group is alive.
static short	DEAD The group is dead.
static short	KO There is a single ko to determine life.
static short	MULTI_KO The group can be killed if the opponent wins a multi-step or multi-stage ko.
static short	SEKI The group is alive in a seki.
static short	SEKI_OR_KO There is a choice of either SEKI or fighting a ko for life.
static short	UNCONDITIONALLY_ALIVE The group is alive, and there are no ko threats or other moves which can threaten to kill it, such as three points with a friendly stone in the middle point..
static short	UNCONDITIONALLY_DEAD The group is dead, and there are no ko threats or other moves which can bring it back to life.
static short	UNCONTAINED A status cannot be determined, because the group is not completely surrounded.
static short	UNDETERMINED For whatever reason, the module is unable to determine the status of the group, for example, in a multiple battle with multiple weak groups.
static short	UNSTABLE The group lives or dies according to who moves first.

Method Summary

short

getLDStatus() Return the life and death status of the group.

Field Detail

ALIVE

public static final short ALIVE

The group is alive. However, two or more moves may kill it. For example, four empty points in a row is alive, but not unconditionally alive, since a ko threat can be made to kill it.

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Constant Field Values

DEAD

public static final short DEAD

The group is dead. However, two or more moves may make it live. For example, four points in a square are dead, but not unconditionally dead, since the player can make a ko threat to live.

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Constant Field Values

UNSTABLE

public static final short UNSTABLE

The group lives or dies according to who moves first.

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Constant Field Values

KO

public static final short KO

There is a single ko to determine life.

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Constant Field Values

SEKI

public static final short SEKI

The group is alive in a seki.

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Constant Field Values

SEKI_OR_KO

public static final short SEKI_OR_KO

There is a choice of either SEKI or fighting a ko for life.

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Constant Field Values

MULTI_KO

public static final short MULTI_KO

The group can be killed if the opponent wins a multi-step or multi-stage ko.

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Constant Field Values

UNCONDITIONALLY_ALIVE

public static final short UNCONDITIONALLY_ALIVE

The group is alive, and there are no ko threats or other moves which can threaten to kill it, such as three points with a friendly stone in the middle point..

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Constant Field Values

UNCONDITIONALLY_DEAD

public static final short UNCONDITIONALLY_DEAD

The group is dead, and there are no ko threats or other moves which can bring it back to life.

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Constant Field Values

UNCONTAINED

public static final short UNCONTAINED

A status cannot be determined, because the group is not completely surrounded.

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Constant Field Values

UNDETERMINED

public static final short UNDETERMINED

For whatever reason, the module is unable to determine the status of the group, for example, in a multiple battle with multiple weak groups.

See Also:

Constant Field Values

Method Detail

getLDStatus

public short getLDStatus()

Return the life and death status of the group.

Returns:

A short, which is one of the constants defined for this interface.