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edward-shi
| Author | SHA1 | Date | |
|---|---|---|---|
| 6e479ea745 | |||
| c86cd7b6e3 | |||
| 455cf5ee63 |
@ -1,159 +1,149 @@
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import React from 'react';
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import { useState } from 'react';
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import './style.css';
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import React from "react";
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import { useState } from "react";
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import "./style.css";
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function TicTacToe() {
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const [gridState, setGridState] = useState(Array(9).fill(0));
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const [playerState, setPlayerState] = useState(false);
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const [winState, setWinState] = useState(0);
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let localWinState = winState;
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const [gridState, setGridState] = useState(Array(9).fill(0));
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const [playerState, setPlayerState] = useState(false);
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const [winState, setWinState] = useState(0);
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let localWinState = winState;
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function updateGridState(index : number, state : number) {
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gridState[index] = state;
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setGridState(gridState);
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}
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function updateGridState(index: number, state: number) {
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gridState[index] = state;
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setGridState(gridState);
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}
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function playTurn(index : number) {
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if (gridState[index]) return;
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if (winState) return;
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function playTurn(index: number) {
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if (gridState[index]) return;
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if (winState) return;
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const newState = playerState ? 2 : 1;
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updateGridState(index, newState);
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const newState = playerState ? 2 : 1;
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updateGridState(index, newState);
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const winner = checkWinCondition()
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if (winner) {
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localWinState = winner;
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setWinState(winner);
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return;
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}
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const winner = checkWinCondition();
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if (winner) {
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localWinState = winner;
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setWinState(winner);
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return;
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}
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setPlayerState(!playerState);
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}
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setPlayerState(!playerState);
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}
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function checkWinCondition() : number {
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function checkWinCondition(): number {
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function getWinningValue(a: number, b: number, c: number) {
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if (a === b && b === c && a === c) {
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return a;
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}
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return 0;
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}
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/*
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* Diagonals
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*/
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{
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const a = gridState[3 * 0 + 0];
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const b = gridState[3 * 1 + 1];
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const c = gridState[3 * 2 + 2];
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const winner = getWinningValue(a, b, c);
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if (winner) return winner;
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}
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{
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const a = gridState[3 * 0 + 2];
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const b = gridState[3 * 1 + 1];
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const c = gridState[3 * 2 + 0];
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const winner = getWinningValue(a, b, c);
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if (winner) return winner;
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}
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/*
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* Rows and Columns
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*/
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for (let row = 0; row < 3; row++) {
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const a = gridState[3 * row + 0];
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const b = gridState[3 * row + 1];
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const c = gridState[3 * row + 2];
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const winner = getWinningValue(a, b, c);
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if (winner) return winner;
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}
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function getWinningValue(
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a : number,
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b : number,
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c : number
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) {
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if ((a === b) && (b === c) && (a === c)) {
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return a;
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}
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return 0
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}
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/*
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* Diagonals
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*/
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{
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const a = gridState[3 * 0 + 0];
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const b = gridState[3 * 1 + 1];
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const c = gridState[3 * 2 + 2];
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const winner = getWinningValue(a, b, c);
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if (winner) return winner;
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}
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{
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const a = gridState[3 * 0 + 2];
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const b = gridState[3 * 1 + 1];
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const c = gridState[3 * 2 + 0];
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const winner = getWinningValue(a, b, c);
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if (winner) return winner;
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}
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/*
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* Rows and Columns
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*/
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for (let row = 0; row < 3; row++) {
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const a = gridState[3 * row + 0];
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const b = gridState[3 * row + 1];
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const c = gridState[3 * row + 2];
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const winner = getWinningValue(a, b, c);
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if (winner) return winner;
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}
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for (let column = 0; column < 3; column++) {
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const a = gridState[3 * 0 + column];
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const b = gridState[3 * 1 + column];
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const c = gridState[3 * 2 + column];
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const winner = getWinningValue(a, b, c);
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if (winner) return winner;
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}
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for (let column = 0; column < 3; column++) {
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const a = gridState[3 * 0 + column];
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const b = gridState[3 * 1 + column];
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const c = gridState[3 * 2 + column];
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const winner = getWinningValue(a, b, c);
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if (winner) return winner;
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}
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const isDrawState = () => {
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for (let i in gridState) {
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if (!gridState[i]) return false;
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}
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return true;
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};
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if (isDrawState()) return 3;
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const isDrawState = () => {
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for (let i in gridState) {
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if (!gridState[i]) return false;
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};
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return true;
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}
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if (isDrawState()) return 3;
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return 0;
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}
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return 0;
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}
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let stateString = "";
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if (localWinState === 3) {
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stateString = `Game draw.`;
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} else if (localWinState) {
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stateString = `Player ${getStateChar(localWinState)} wins.`;
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} else {
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stateString = `Player ${getStateChar(playerState ? 2 : 1)} turn.`;
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}
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let stateString = "";
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if (localWinState === 3) {
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stateString = `Game draw.`
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}
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else if (localWinState) {
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stateString = `Player ${getStateChar(localWinState)} wins.`;
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}
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else {
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stateString = `Player ${getStateChar(playerState ? 2 : 1)} turn.`
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}
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return (
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<div className="TicTacToe">
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<h1>{stateString}</h1>
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<div className="TicTacToeGrid">
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{
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gridState.map((item, index) => {
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const getState = () => { return gridState[index] };
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const callback = () => { playTurn(index) };
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return (<TicTacToeCell getState={getState} callback={callback}/>);
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})
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}
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</div>
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</div>
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);
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return (
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<div className="TicTacToe">
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<h1>{stateString}</h1>
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<div className="TicTacToeGrid">
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{gridState.map((item, index) => {
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const getState = () => {
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return gridState[index];
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};
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const callback = () => {
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playTurn(index);
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};
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return <TicTacToeCell state={gridState[index]} onClick={callback} />;
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})}
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</div>
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</div>
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);
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}
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interface CellProps {
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getState: () => number;
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callback: () => void;
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state: number;
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onClick: () => void;
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}
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function TicTacToeCell({ getState, callback }: CellProps) {
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function handleClick() {
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callback()
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}
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return (
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<div className={`TicTacToeCell ${getStateClass(getState())}`} onClick={handleClick}>
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<p>{getStateChar(getState())}</p>
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</div>
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);
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function TicTacToeCell({ state, onClick }: CellProps) {
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return (
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<div className={`TicTacToeCell ${getStateClass(state)}`} onClick={onClick}>
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<p>{getStateChar(state)}</p>
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</div>
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);
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}
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function getStateChar(state : number) {
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switch (state) {
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case 1:
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return "O";
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case 2:
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return "X";
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default:
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return "";
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}
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function getStateChar(state: number) {
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switch (state) {
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case 1:
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return "O";
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case 2:
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return "X";
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default:
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return "";
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}
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}
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function getStateClass(state : number) {
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switch (state) {
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case 1:
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return "CellRed";
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case 2:
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return "CellBlue";
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default:
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return "";
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}
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function getStateClass(state: number) {
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switch (state) {
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case 1:
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return "CellRed";
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case 2:
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return "CellBlue";
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default:
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return "";
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}
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}
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export default TicTacToe;
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