Mahjong-seatings-rs-node

Small wrapper around mahjong-seatings-rust to compile it to wasm, node version.

Usage

• Install package: npm install mahjong-seatings-rs-node
• Invoke function as follows:

const {
  make_seating_shuffled,
  make_seating_interval,
  make_seating_swiss,
} = require("mahjong-seatings-rs-node");

console.log(
  "Shuffled seating",
  make_seating_shuffled({
    playersMap: {
      "1": 1500,
      "2": 1500,
      "3": 1500,
      "4": 1500,
      "5": 1500,
      "6": 1500,
      "7": 1500,
      "8": 1500,
    },
    previousSeatings: [
      [1, 2, 3, 4],
      [5, 6, 7, 8],
    ],
    groupsCount: 1,
    randFactor: 1234455,
    windShuffle: "random", // other options: 'balanced'
  }),
);

console.log(
  "Interval seating",
  make_seating_interval({
    playersMap: {
      "1": 1510,
      "2": 1508,
      "3": 1506,
      "4": 1504,
      "5": 1496,
      "6": 1494,
      "7": 1492,
      "8": 1490,
    },
    previousSeatings: [
      [1, 2, 3, 4],
      [5, 6, 7, 8],
    ],
    step: 2,
    randFactor: 1234455,
    windShuffle: "random", // other options: 'balanced'
  }),
);

console.log(
  "Swiss seating",
  make_seating_swiss({
    playersMap: {
      "1": 1510,
      "2": 1508,
      "3": 1506,
      "4": 1504,
      "5": 1496,
      "6": 1494,
      "7": 1492,
      "8": 1490,
    },
    previousSeatings: [
      [1, 2, 3, 4],
      [5, 6, 7, 8],
    ],
    randFactor: 1234455,
    windShuffle: "random", // other options: 'balanced'
  }),
);

Note that returned lists contain player ids and their rating. First four elements are first table, next four are second table, etc.## Riichi-rs-node

In case you already have the prepared seating and just want to randomize seatings by wind, you can use update_wind_placing_only function:

const { update_wind_placing_only } = require("mahjong-seatings-rs-node");

const updatedSeatings = update_wind_placing_only({
  playersMap: {
    1: 1510,
    2: 1508,
    3: 1506,
    4: 1504,
    5: 1496,
    6: 1494,
    7: 1492,
    8: 1490,
  },
  previousSeatings: [
    [1, 2, 3, 4],
    [5, 6, 7, 8],
  ],
  windShuffle: "random", // other options: 'balanced', 'prescripted'
});

console.log(updatedSeatings);

Note that windShuffle: 'prescripted' option just returns input array as is, considering it being already shuffled manually.