de.sfuhrm.sudoku

Class Creator

java.lang.Object

de.sfuhrm.sudoku.Creator

public class Creator
extends Object

Creates a fully filled sudoku.

Author:

Stephan Fuhrmann

Method Summary

Modifier and Type	Method and Description
static GameMatrix	createFull() Creates a valid fully setup sudoku.
static Riddle	createRiddle(GameMatrix in) Creates a riddle setup sudoku.
static GameMatrix	createVariant(GameMatrix matrix) Creates a variant of a fully-filled game matrix.

Methods inherited from class java.lang.Object

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

Method Detail

createFull

public static GameMatrix createFull()

Creates a valid fully setup sudoku.

Returns:

a fully filled sudoku board.

createVariant

public static GameMatrix createVariant(GameMatrix matrix)

Creates a variant of a fully-filled game matrix. The variant is calculated very efficiently by applying simple transformations.

Parameters:

matrix - the input matrix to transform.

Returns:

a transformed variant of the input game matrix.

Throws:

IllegalArgumentException - if there are unset fields in the GameMatrix.

createRiddle

public static Riddle createRiddle(GameMatrix in)

Creates a riddle setup sudoku.

Parameters:

in - a fully set up (solved) and valid sudoku.

Returns:

a maximally cleared sudoku.