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/*
* Tic Tac Toe - Minimalistic Tic Tac Toe
* Copyright (C) 2021 Vidhu Kant Sharma
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import React, { useState, useEffect } from 'react';
import Box from './Box';
import './style.css';
const Grid = (props) => {
// 0 is O, 1 is X, 2 is blank
const [board, setBoard] = useState([2,2,2,2,2,2,2,2,2]);
const turn = props.turn;
const getBoard = (index) => {
setBoard(board.slice(0, index).concat(turn).concat(board.slice(index+1, 9)));
props.setTurn(turn === 1 ? 0 : 1)
}
const allEqual = (arr) =>
arr.includes(2) ? false : arr.every(i => i === arr[0])
const getRow = (r) => board.slice(r * 3, (r * 3) + 3);
const getRows = (r = 0) =>
r <= 2 ? [getRow(r)].concat(getRows(r+1)) : getRow(r)
const getCol = (arr, c) => arr.map((i) => i[c])
const getCols = (rows, c = 0) =>
c < 2 ? [getCol(rows, c)].concat(getCols(rows, c+1)) : [getCol(rows, c)]
const getLeftDiagonal = (i = 0) =>
i < 3 ? [getRow(i)[i]].concat(getLeftDiagonal(i+1)) : [];
const getRightDiagonal = (i = 2) =>
i >= 0 ? [getRow(2-i)[i]].concat(getRightDiagonal(i-1)) : [];
const endGame = (winner) => {
const gameWinner = winner < 2 ? (winner === 1 ? "X" : "O") : "Draw";
props.setMessage(`WINNER: ${gameWinner}`);
props.setShowMessage(true);
gameWinner === "Draw" || (gameWinner === "X"
? props.setScoreX(props.scoreX + 1)
: props.setScoreO(props.scoreO + 1));
setBoard([2,2,2,2,2,2,2,2,2]);
winner < 2 && props.setTurn(winner); // set turn to prev. winner
}
useEffect(() => {
if (board.includes(0) || board.includes(1)) {
const rows = getRows();
(rows.some((i) => allEqual(i))
|| getCols(rows).some((i) => allEqual(i))
|| [getLeftDiagonal(), getRightDiagonal()].some((i) => allEqual(i))
) ? endGame(turn === 0 ? 1 : 0) : (board.includes(2) || endGame(2));
}
});
return (
<div className="Grid">
{board.map((i, index) =>
<Box key={index} index={index} sign={i} setSign={getBoard}/>
)}
</div>
);
}
export default Grid;
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