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Game.tsx
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Game.tsx
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import { useEffect, useState } from "react";
import { Row, RowState } from "./Row";
import dictionary from "./dictionary.json";
import { Clue, clue, describeClue, violation } from "./clue";
import { Keyboard } from "./Keyboard";
import targetList from "./targets.json";
import { pick, resetRng, seed, speak, urlParam } from "./util";
import { decode, encode } from "./base64";
enum GameState {
Playing,
Won,
Lost,
}
interface GameProps {
maxGuesses: number;
hidden: boolean;
hard: boolean;
}
const targets = targetList.slice(0, targetList.indexOf("murky") + 1); // Words no rarer than this one
function randomTarget(wordLength: number): string {
const eligible = targets.filter((word) => word.length === wordLength);
return pick(eligible);
}
function getChallengeUrl(target: string): string {
return window.location.origin + window.location.pathname + "?challenge=" + encode(target);
}
let challengeString = "";
let challengeError = false;
try {
challengeString = decode(urlParam("challenge") ?? "").toLowerCase();
} catch (e) {
console.warn(e);
challengeError = true;
}
if (challengeString && !targets.includes(challengeString)) {
challengeString = "";
challengeError = true;
}
function Game(props: GameProps) {
const [gameState, setGameState] = useState(GameState.Playing);
const [guesses, setGuesses] = useState<string[]>([]);
const [currentGuess, setCurrentGuess] = useState<string>("");
const [hint, setHint] = useState<string>(
challengeError
? `Invalid challenge string, playing random game.`
: `Make your first guess!`
);
const [challenge, setChallenge] = useState<string>(challengeString);
const [wordLength, setWordLength] = useState(
challenge ? challenge.length : 5
);
const [target, setTarget] = useState(() => {
resetRng();
return challenge || randomTarget(wordLength);
});
const [gameNumber, setGameNumber] = useState(1);
const startNextGame = () => {
if (challenge) {
// Clear the URL parameters:
window.history.replaceState({}, document.title, window.location.pathname);
}
setChallenge("");
setTarget(randomTarget(wordLength));
setGuesses([]);
setCurrentGuess("");
setHint("");
setGameState(GameState.Playing);
setGameNumber((x) => x + 1);
};
const onKey = (key: string) => {
if (gameState !== GameState.Playing) {
if (key === "Enter") {
startNextGame();
}
return;
}
if (guesses.length === props.maxGuesses) return;
if (/^[a-z]$/i.test(key)) {
setCurrentGuess((guess) =>
(guess + key.toLowerCase()).slice(0, wordLength)
);
// When typing a guess, make sure a later "Enter" press won't activate a link or button.
const active = document.activeElement as HTMLElement;
if (active && ["A", "BUTTON"].includes(active.tagName)) {
active.blur();
}
setHint("");
} else if (key === "Backspace") {
setCurrentGuess((guess) => guess.slice(0, -1));
setHint("");
} else if (key === "Enter") {
if (currentGuess.length !== wordLength) {
setHint("Too short");
return;
}
if (!dictionary.includes(currentGuess)) {
setHint("Not a valid word");
return;
}
if (props.hard) {
for (const g of guesses) {
const feedback = violation(clue(g, target), currentGuess);
if (feedback) {
setHint(feedback);
return;
}
}
}
setGuesses((guesses) => guesses.concat([currentGuess]));
setCurrentGuess((guess) => "");
const gameOver = (verbed: string) =>
`You ${verbed}! The answer was ${target.toUpperCase()}. (Enter to ${
challenge ? "play a random game" : "play again"
})`;
if (currentGuess === target) {
setHint(gameOver("won"));
setGameState(GameState.Won);
} else if (guesses.length + 1 === props.maxGuesses) {
setHint(gameOver("lost"));
setGameState(GameState.Lost);
} else {
setHint("");
speak(describeClue(clue(currentGuess, target)));
}
}
};
useEffect(() => {
const onKeyDown = (e: KeyboardEvent) => {
if (!e.ctrlKey && !e.metaKey) {
onKey(e.key);
}
if (e.key === "Backspace") {
e.preventDefault();
}
};
document.addEventListener("keydown", onKeyDown);
return () => {
document.removeEventListener("keydown", onKeyDown);
};
}, [currentGuess, gameState]);
let letterInfo = new Map<string, Clue>();
const tableRows = Array(props.maxGuesses)
.fill(undefined)
.map((_, i) => {
const guess = [...guesses, currentGuess][i] ?? "";
const cluedLetters = clue(guess, target);
const lockedIn = i < guesses.length;
if (lockedIn) {
for (const { clue, letter } of cluedLetters) {
if (clue === undefined) break;
const old = letterInfo.get(letter);
if (old === undefined || clue > old) {
letterInfo.set(letter, clue);
}
}
}
return (
<Row
key={i}
wordLength={wordLength}
rowState={
lockedIn
? RowState.LockedIn
: i === guesses.length
? RowState.Editing
: RowState.Pending
}
cluedLetters={cluedLetters}
/>
);
});
return (
<div className="Game" style={{ display: props.hidden ? "none" : "block" }}>
<div className="Game-options">
<label htmlFor="wordLength">Letters:</label>
<input
type="range"
min="4"
max="11"
id="wordLength"
disabled={
gameState === GameState.Playing &&
(guesses.length > 0 || currentGuess !== "" || challenge !== "")
}
value={wordLength}
onChange={(e) => {
const length = Number(e.target.value);
resetRng();
setGameNumber(1);
setGameState(GameState.Playing);
setGuesses([]);
setCurrentGuess("");
setTarget(randomTarget(length));
setWordLength(length);
setHint(`${length} letters`);
}}
></input>
<button
style={{ flex: "0 0 auto" }}
disabled={gameState !== GameState.Playing || guesses.length === 0}
onClick={() => {
setHint(
`The answer was ${target.toUpperCase()}. (Enter to play again)`
);
setGameState(GameState.Lost);
(document.activeElement as HTMLElement)?.blur();
}}
>
Give up
</button>
</div>
<table className="Game-rows" tabIndex={0} aria-label="Table of guesses">
<tbody>{tableRows}</tbody>
</table>
<p
role="alert"
style={{ userSelect: /http:/.test(hint) ? "text" : "none" }}
>
{hint || `\u00a0`}
</p>
<Keyboard letterInfo={letterInfo} onKey={onKey} />
{gameState !== GameState.Playing && !challenge && (
<p>
<button
onClick={() => {
const url = getChallengeUrl(target);
if (!navigator.clipboard) {
setHint(url);
} else {
navigator.clipboard
.writeText(url)
.then(() => {
setHint("Challenge link copied to clipboard!");
})
.catch(() => {
setHint(url);
});
}
}}
>
Challenge a friend to this word
</button>
</p>
)}
{challenge ? (
<div className="Game-seed-info">playing a challenge game</div>
) : seed ? (
<div className="Game-seed-info">
seed {seed}, length {wordLength}, game {gameNumber}
</div>
) : undefined}
</div>
);
}
export default Game;