chlss/dist/piece.js

Open-Source Chess Engine in TypeScript.

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.Piece = void 0;
const pieces_1 = __importDefault(require("./pieces"));
const colour_1 = require("./colour");
const coords_1 = require("./coords");
exports.Piece = {
    getPawn(colour) {
        return colour == colour_1.Colours.white ? pieces_1.default.WhitePawn : pieces_1.default.BlackPawn;
    },
    getKing(colour) {
        return colour == colour_1.Colours.white ? pieces_1.default.WhiteKing : pieces_1.default.BlackKing;
    },
    isEnemyOrNull(piece, colour) {
        if (piece == null)
            return true;
        const pieceColour = (exports.Piece.getColour(piece));
        return !(exports.Piece.compareColour(pieceColour, colour));
    },
    getColour(piece) {
        if (this.allWhite.includes(piece))
            return colour_1.Colours.white;
        if (this.allBlack.includes(piece))
            return colour_1.Colours.black;
        return null;
    },
    isEnemy(piece, colour) {
        const pieceColour = this.getColour(piece);
        return pieceColour == colour_1.Colours.inverseColour(colour);
    },
    isEnemyOrEmpty(piece, colour) {
        if (exports.Piece.isEmpty(piece))
            return true;
        return this.isEnemy(piece, colour);
    },
    isColourEnemyOrNull(tColour, colour) {
        if (tColour == null)
            return true;
        return !exports.Piece.compareColour(tColour, colour);
    },
    isWhite(piece) {
        return this.allWhite.includes(piece);
    },
    isBlack(piece) {
        return this.allBlack.includes(piece);
    },
    isEmpty(piece) {
        return piece == pieces_1.default.Empty;
    },
    isColour(piece, colour) {
        return this.getColour(piece) == colour;
    },
    compareColour(colour1, colour2) {
        return colour1 == colour2;
    },
    isRook(piece) {
        return piece == pieces_1.default.WhiteRook || piece == pieces_1.default.BlackRook;
    },
    isBishop(piece) {
        return piece == pieces_1.default.WhiteBishop || piece == pieces_1.default.BlackBishop;
    },
    isKing(piece) {
        return piece == pieces_1.default.WhiteKing || piece == pieces_1.default.BlackKing;
    },
    isKnight(piece) {
        return piece == pieces_1.default.WhiteKnight || piece == pieces_1.default.BlackKnight;
    },
    isPawn(piece) {
        return piece == pieces_1.default.WhitePawn || piece == pieces_1.default.BlackPawn;
    },
    isQueen(piece) {
        return piece == pieces_1.default.WhiteQueen || piece == pieces_1.default.BlackQueen;
    },
    getBishopSquareColour(i) {
        return this.getBishopSquareColourByCoords(coords_1.Coords.toX(i), coords_1.Coords.toY(i));
    },
    getBishopSquareColourByCoords(x, y) {
        return ((y + 1) % 2) - ((x + 1) % 2) == 0 ? colour_1.Colours.white : colour_1.Colours.black;
    },
    getBishop(colour) {
        return colour == colour_1.Colours.white ? pieces_1.default.WhiteBishop : pieces_1.default.BlackBishop;
    },
    getQueen(colour) {
        return colour == colour_1.Colours.white ? pieces_1.default.WhiteQueen : pieces_1.default.BlackQueen;
    },
    getRook(colour) {
        return colour == colour_1.Colours.white ? pieces_1.default.WhiteRook : pieces_1.default.BlackRook;
    },
    getKnight(colour) {
        return colour == colour_1.Colours.white ? pieces_1.default.WhiteKing : pieces_1.default.BlackKnight;
    },
    allWhite: [
        pieces_1.default.WhiteRook,
        pieces_1.default.WhiteQueen,
        pieces_1.default.WhiteKing,
        pieces_1.default.WhiteBishop,
        pieces_1.default.WhiteKnight,
        pieces_1.default.WhitePawn
    ],
    allBlack: [
        pieces_1.default.BlackRook,
        pieces_1.default.BlackQueen,
        pieces_1.default.BlackKing,
        pieces_1.default.BlackBishop,
        pieces_1.default.BlackKnight,
        pieces_1.default.BlackPawn
    ]
};