2022-01-01 02:04:48 +00:00
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export enum Clue {
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Absent,
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Elsewhere,
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Correct,
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}
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export interface CluedLetter {
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clue?: Clue;
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letter: string;
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}
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export function clue(word: string, target: string): CluedLetter[] {
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2022-01-01 18:35:03 +00:00
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let elusive: string[] = [];
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target.split("").forEach((letter, i) => {
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2022-01-01 02:04:48 +00:00
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if (word[i] !== letter) {
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2022-01-01 18:35:03 +00:00
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elusive.push(letter);
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2022-01-01 02:04:48 +00:00
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}
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});
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return word.split("").map((letter, i) => {
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let j: number;
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if (target[i] === letter) {
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return { clue: Clue.Correct, letter };
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2022-01-01 18:35:03 +00:00
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} else if ((j = elusive.indexOf(letter)) > -1) {
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// "use it up" so we don't clue at it twice
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elusive[j] = "";
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2022-01-01 02:04:48 +00:00
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return { clue: Clue.Elsewhere, letter };
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} else {
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return { clue: Clue.Absent, letter };
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}
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});
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}
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export function clueClass(clue: Clue): string {
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if (clue === Clue.Absent) {
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return "letter-absent";
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} else if (clue === Clue.Elsewhere) {
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return "letter-elsewhere";
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} else {
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return "letter-correct";
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}
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}
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2022-01-13 23:16:27 +00:00
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export function clueWord(clue: Clue): string {
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if (clue === Clue.Absent) {
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return "no";
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} else if (clue === Clue.Elsewhere) {
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2022-01-14 16:19:42 +00:00
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return "elsewhere";
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2022-01-13 23:16:27 +00:00
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} else {
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return "correct";
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}
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}
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export function describeClue(clue: CluedLetter[]): string {
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return clue
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.map(({ letter, clue }) => letter.toUpperCase() + " " + clueWord(clue!))
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.join(", ");
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}
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