chlss/dist/offsetMoveGenerator.js

Open-Source Chess Engine in TypeScript.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.OffsetMoveGenerator = void 0;
const boardPosition_1 = require("./boardPosition");
const piece_1 = require("./piece");
const coords_1 = require("./coords");
exports.OffsetMoveGenerator = {
    generateOffsets(boardPosition, piece, colour, index, posX, posY, offsets, moveList) {
        for (let { x, y } of offsets) {
            this.addMove(boardPosition, piece, colour, index, posX, posY, x, y, moveList);
        }
    },
    addMove(boardPosition, piece, colour, index, posX, posY, offX, offY, moveList) {
        const tX = posX + offX;
        const tY = posY + offY;
        function pushMove(targetPiece) {
            moveList.push({
                from: index,
                to: coords_1.Coords.toSquareIndex(tX, tY),
                piece: piece,
                targetPiece: targetPiece,
                setEnPassant: null,
                promotion: undefined,
                isPromo: false
            });
        }
        if (!boardPosition_1.BoardPosition.isInBoard(tX, tY))
            return;
        const tI = coords_1.Coords.toSquareIndex(tX, tY);
        const tPiece = boardPosition_1.BoardPosition.getPiece(boardPosition, tI);
        const tColour = piece_1.Piece.getColour(tPiece);
        if (piece_1.Piece.isColourEnemyOrNull(tColour, colour)) {
            pushMove(tPiece);
        }
    }
};