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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, Dispatch, SetStateAction } from 'react';
import Box from './Box';
import './style.css';
interface Props {
scoreX: number
scoreO: number
setScoreX: Dispatch<SetStateAction<number>>
setScoreO: Dispatch<SetStateAction<number>>
}
const Grid: React.FC<Props> = (props) => {
// 0 is O, 1 is X, 2 is blank
const [board, setBoard] = useState<number[]>([2,2,2,2,2,2,2,2,2]);
const [turn, setTurn] = useState<number>(1);
const [winner, setWinner] = useState<number>(2)
const getBoard = (index: number) => {
setBoard(board.slice(0, index).concat(turn).concat(board.slice(index+1, 9)));
setTurn(turn === 1 ? 0 : 1)
}
const allEqual = (arr: number[]) => arr.includes(2) ? false : arr.every(v => v === arr[0])
const getRow = (r: number) => board.slice(r * 3, (r * 3) + 3);
const getCol: any = (c: number, arr=board) => arr.length <= 3 ? arr[c] : [arr[c]].concat(getCol(c, arr.slice(3)))
const getLeftDiagonal: any = (i: number = 0) =>
i < 3 ? [getRow(i)[i]].concat(getLeftDiagonal(i+1)) : [];
const getRightDiagonal: any = (i: number = 2) =>
i >= 0 ? [getRow(2-i)[i]].concat(getRightDiagonal(i-1)) : [];
const checkHorMatch: any = (rowNum: number = 0) =>
rowNum <= 2 && (allEqual(getRow(rowNum)) ? setWinner(turn === 1 ? 0 : 1) : checkHorMatch(rowNum+1))
const checkVerMatch: any = (colNum: number = 0) =>
colNum <= 2 && (allEqual(getCol(colNum)) ? setWinner(turn === 1 ? 0 : 1) : checkVerMatch(colNum+1))
const checkDiagonalMatch: any = () => {
(allEqual(getLeftDiagonal()) || allEqual(getRightDiagonal())) && setWinner(turn === 1 ? 0 : 1)
}
const endGame = (winner: number) => {
const gameWinner = winner < 2 ? (winner === 1 ? "X" : "O") : "Draw";
alert(`WINNER: ${gameWinner}`)
gameWinner === "Draw" || gameWinner === "X"
? props.setScoreX(props.scoreX + 1)
: props.setScoreO(props.scoreO + 1)
// clean up
setBoard([2,2,2,2,2,2,2,2,2]);
setWinner(2);
}
useEffect(() => {
checkHorMatch();
checkVerMatch();
checkDiagonalMatch();
winner < 2 && endGame(winner);
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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