Reference · Number-puzzle engines
undoKazufunction
Take back the last change. The same game when there is nothing to take back.
Import it
import { undoKazu } from "@johnmorrisdotca/kazu";Definition
function undoKazu(game: KazuGame): KazuGameParameters
| Name | Type | Description |
|---|---|---|
game | KazuGame | The current immutable number-grid game. |
Returns
KazuGame
Take back the last change. The same game when there is nothing to take back.
Examples
import type { KazuPuzzle } from "@johnmorrisdotca/kazu";
import { decodeCells, enterNumber, newKazuGame, readGivens, undoKazu } from "@johnmorrisdotca/kazu";
const puzzle: KazuPuzzle = {"kind":"number-place","size":4,"level":"easy","seed":42,"givens":"14..2..1412.3..4","solution":"1432234141233214"};
const kind = puzzle.kind;
const size = puzzle.size;
const givens = puzzle.givens;
const answer = puzzle.solution;
const printed = readGivens(kind,size,givens)!;
const cells = printed.cells;
const solution = decodeCells(answer,size)!;
const game = newKazuGame(kind,size,givens)!;
const blank = cells.findIndex(value=>value===0);
console.log(undoKazu(enterNumber(game,blank,solution[blank])).entries[blank]);0What it prints (run when this page was built)