Reference · Tiles, layouts and deals
isFreeAmongfunction
Whether a slot's tile could be taken now, among the slots present says are still filled.
Import it
import { isFreeAmong } from "@johnmorrisdotca/jarajara";Definition
function isFreeAmong(geometry: MahjongGeometry, present: (slot: number) => boolean, slot: number): booleanParameters
| Name | Type | Description |
|---|---|---|
geometry | MahjongGeometry | The stacked layout’s covering and side-blocking relationships. |
present | (slot: number) => boolean | Whether each native slot is still occupied or selected for laying. |
slot | number | The zero-based slot index or slot coordinates specified by this signature. |
Returns
boolean
Whether a slot's tile could be taken now, among the slots present says are still filled.
Examples
import { generateAwase } from "@johnmorrisdotca/jarajara/awase";
import { freePairs, geometryOf, isFreeAmong, layoutFor } from "@johnmorrisdotca/jarajara";
const deal = generateAwase(4,"easy",2026);
const layout = layoutFor(4)!;
const geometry = geometryOf(layout);
const cells = deal.givens;
const pair = freePairs(geometry,cells,"group")[0];
console.log(isFreeAmong(geometry,slot=>cells[slot]!==".",pair[0]));trueWhat it prints (run when this page was built)