fuzzyworld

word-waltz / files / src / utils / scoring.ts

scoring.ts

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f755bca6 2026-03-23 Pavel Safronov1/**
2 * utils/scoring.ts — round score calculation
3 *
4 * Score table:
5 * 1 guess → 6 points
6 * 2 guesses → 5 points
7 * 3 guesses → 4 points
8 * 4 guesses → 3 points
9 * 5 guesses → 2 points
10 * 6 guesses → 1 point
11 * failed → 0 points
12 */
13
14/**
15 * Calculate the score for a completed round.
16 * @param guessCount number of guesses taken (1–6), or > 6 if failed
17 * @param solved whether the solver got the word
18 */
19export function calculateScore(guessCount: number, solved: boolean): number {
20 if (!solved) return 0;
21 return Math.max(0, 7 - guessCount);
22}
26f9fd72 2026-03-26 Pavel Safronov23
24const WORD_LEN = 5;
25
26function evaluateGuess(guess: string, secret: string): Array<'correct' | 'present' | 'absent'> {
27 const result: Array<'correct' | 'present' | 'absent'> = Array(WORD_LEN).fill('absent');
28 const remaining = secret.split('');
29 for (let i = 0; i < WORD_LEN; i++) {
30 if (guess[i] === secret[i]) { result[i] = 'correct'; remaining[i] = ''; }
31 }
32 for (let i = 0; i < WORD_LEN; i++) {
33 if (result[i] === 'correct') continue;
34 const idx = remaining.indexOf(guess[i]);
35 if (idx !== -1) { result[i] = 'present'; remaining[idx] = ''; }
36 }
37 return result;
38}
39
40const EMOJI: Record<'correct' | 'present' | 'absent', string> = {
41 correct: '🟩',
42 present: '🟨',
43 absent: '⬛',
44};
45
46/** Convert a list of guesses for a given secret word into Wordle emoji rows. */
47export function guessesToEmoji(guesses: string[], secret: string): string {
48 return guesses
49 .map((g) => evaluateGuess(g, secret.toUpperCase()).map((s) => EMOJI[s]).join(''))
50 .join('\n');
51}