Implement choice specification
This commit is contained in:
228
src/index.js
228
src/index.js
@@ -2,137 +2,163 @@ import React from "react";
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import ReactDOM from "react-dom";
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import "./index.css";
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function Square(props) {
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return (
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<button className="square" onClick={props.onClick}>
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{props.value}
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</button>
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);
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}
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class Board extends React.Component {
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renderSquare(i) {
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return (
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<Square
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value={this.props.squares[i]}
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onClick={() => this.props.onClick(i)}
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/>
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);
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}
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render() {
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return (
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<div>
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<div className="board-row">
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{this.renderSquare(0)}
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{this.renderSquare(1)}
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{this.renderSquare(2)}
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</div>
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<div className="board-row">
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{this.renderSquare(3)}
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{this.renderSquare(4)}
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{this.renderSquare(5)}
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</div>
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<div className="board-row">
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{this.renderSquare(6)}
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{this.renderSquare(7)}
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{this.renderSquare(8)}
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</div>
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</div>
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);
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function shuffleArray(array) {
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/* https://stackoverflow.com/a/12646864 */
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for (let i = array.length - 1; i > 0; i--) {
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const j = Math.floor(Math.random() * (i + 1));
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[array[i], array[j]] = [array[j], array[i]];
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}
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}
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class Game extends React.Component {
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class Decision {
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constructor(choiceA, choiceB) {
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this.choiceA = choiceA;
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this.choiceB = choiceB;
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this.result = null;
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}
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static createDecisions(choices) {
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let decisions = [];
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for (var i = 0; i < choices.length; i++) {
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for (var j = 0; j < choices.length; j++) {
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if (i !== j) {
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let d = new Decision(choices[i], choices[j]);
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decisions.push(d);
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}
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}
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}
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shuffleArray(decisions);
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return decisions;
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}
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}
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class Options extends React.Component {
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constructor(props) {
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super(props);
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this.state = {
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history: [{ squares: Array(9).fill(null) }],
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stepNumber: 0,
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xIsNext: true,
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choicesText: null,
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choices: [],
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decisions: null,
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warnings: null,
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};
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}
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jumpTo(step) {
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startChoosing() {
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this.setState({
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stepNumber: step,
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xIsNext: step % 2 === 0,
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decisions: Decision.createDecisions(this.state.choices),
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});
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}
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handleClick(i) {
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const history = this.state.history.slice(0, this.state.stepNumber + 1);
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const current = history[history.length - 1];
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const squares = current.squares.slice();
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if (calculateWinner(squares) || squares[i]) {
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return;
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}
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squares[i] = this.state.xIsNext ? "X" : "O";
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choicesTextToChoices(choicesText) {
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let choices = choicesText.split("\n");
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choices = choices.filter((choice) => choice.length > 0);
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return choices;
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}
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choicesOnChange(event) {
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let choicesText = event.target.value;
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let choices = this.choicesTextToChoices(choicesText);
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this.setState({
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history: history.concat([{ squares: squares }]),
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stepNumber: history.length,
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xIsNext: !this.state.xIsNext,
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choicesText: choicesText,
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choices: choices,
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});
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}
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render() {
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const history = this.state.history;
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const current = history[this.state.stepNumber];
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const winner = calculateWinner(current.squares);
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const moves = history.map((step, move) => {
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const desc = move ? "Go to move #" + move : "Go to game start";
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renderChoosing() {
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const decisions = this.state.decisions;
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const decisionsToRender = decisions.map((decision, index) => {
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return (
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<li key={move}>
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<button onClick={() => this.jumpTo(move)}>{desc}</button>
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<li key={index}>
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{decision.choiceA} - {decision.choiceB}
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</li>
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);
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});
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let status;
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if (winner) {
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status = "Winner " + winner;
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} else {
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status = "Next player: " + (this.state.xIsNext ? "X" : "O");
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}
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return (
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<div className="game">
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<div className="game-board">
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<Board
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squares={current.squares}
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onClick={(i) => this.handleClick(i)}
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/>
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</div>
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<div className="game-info">
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<div>{status}</div>
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<ol>{moves}</ol>
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<div className="pure-g">
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<div className="pure-u-1">
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<ul>{decisionsToRender}</ul>
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</div>
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</div>
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);
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}
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}
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// ========================================
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renderButton() {
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let choices = this.state.choices;
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let button = null;
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if (choices.length > 1 && choices[1]) {
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button = (
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<button
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className="pure-button pure-button-primary space-1"
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onClick={() => this.startChoosing()}
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>
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Start choosing
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</button>
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);
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} else {
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button = (
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<button className="pure-button pure-button-disabled space-1">
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Start choosing
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</button>
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);
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}
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return button;
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}
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ReactDOM.render(<Game />, document.getElementById("root"));
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renderChoiceInputField() {
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return (
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<div className="pure-u-1">
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<h2 className="content-subhead">Type or paste your choices</h2>
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<form className="pure-form" onSubmit={() => this.onSubmit}>
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<fieldset className="pure-group">
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<textarea
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onChange={(event) => this.choicesOnChange(event)}
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className="pure-input-1"
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placeholder="Enter one choice per line"
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></textarea>
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</fieldset>
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</form>
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</div>
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);
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}
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function calculateWinner(squares) {
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const lines = [
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[0, 1, 2],
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[3, 4, 5],
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[6, 7, 8],
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[0, 3, 6],
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[1, 4, 7],
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[2, 5, 8],
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[0, 4, 8],
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[2, 4, 6],
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];
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for (let i = 0; i < lines.length; i++) {
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const [a, b, c] = lines[i];
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if (squares[a] && squares[a] === squares[b] && squares[a] === squares[c]) {
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return squares[a];
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renderCurrentChoices() {
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let choices = this.state.choices;
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let choicesToRender = choices.map((choice, index) => {
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return <li key={index}>{choice}</li>;
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});
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let button = this.renderButton();
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return (
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<div className="pure-u-1">
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<h2 className="content-subhead">Your choices</h2>
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<div className="pure-menu">
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<ul>{choicesToRender}</ul>
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</div>
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<div>{button}</div>
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</div>
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);
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}
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renderSpecifyChoices() {
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let input = this.renderChoiceInputField();
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let output = this.renderCurrentChoices();
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return (
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<div className="pure-g">
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{input}
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{output}
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</div>
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);
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}
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render() {
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if (!this.state.decisions) {
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return this.renderSpecifyChoices();
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} else {
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return this.renderChoosing();
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}
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}
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return null;
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}
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ReactDOM.render(<Options />, document.getElementById("root"));
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