+
+ canonize(word) {
+ return word.toLowerCase();
+ }
+
+ compute_scores() {
+ const word_submitters = {};
+ const scores = [];
+
+ /* Perform a (non-strict) majority ruling on equivalencies,
+ * dropping all that didn't get enough votes. */
+ const quorum = Math.floor((this.players.length + 1)/2);
+ const agreed_equivalencies = Object.values(this.equivalencies).filter(
+ eq => eq.count >= quorum);
+
+ /* And with that agreed set of equivalencies, construct the full
+ * groups. */
+ const word_groups = {};
+
+ for (let e of agreed_equivalencies) {
+ let group = word_groups[e.words[0]];
+ if (! group)
+ group = word_groups[e.words[1]];
+ if (! group)
+ group = { words: [], players: new Set()};
+
+ if (! word_groups[e.words[0]]) {
+ word_groups[e.words[0]] = group;
+ group.words.push(e.words[0]);
+ }
+
+ if (! word_groups[e.words[1]]) {
+ word_groups[e.words[1]] = group;
+ group.words.push(e.words[1]);
+ }
+ }
+
+ /* Now go through answers from each player and add the player name
+ * to the set corresponding to each word group. */
+ for (let a of this.answers) {
+ for (let word of a.answers) {
+ /* If there's no group yet, this is a singleton word. */
+ if (word_groups[word]) {
+ word_groups[word].players.add(a.player.name);
+ } else {
+ const group = { words: [word], players: new Set() };
+ group.players.add(a.player.name);
+ word_groups[word] = group;
+ }
+ }
+ }
+
+ /* Finally, go through the answers one more time, this time taking
+ * the length of the player set as a score for the player's
+ * submission of that word. */
+ for (let a of this.answers) {
+ let score = 0;
+ for (let word of a.answers) {
+ score += word_groups[word].players.size;
+ }
+ scores.push({
+ player: a.player.name,
+ score: score
+ });
+ }
+
+ scores.sort((a,b) => {
+ return b.score - a.score;
+ });
+
+ /* Put the word groups into a form the client can consume.
+ *
+ * Most significantly, we only want one entry for each group (even
+ * though our current "word_groups" object has a property for each
+ * word considered equivalent).
+ */
+ const words_submitted = Object.entries(word_groups).filter(
+ group => group[0] === group[1].words[0]).map(
+ group => {
+ return {
+ word: group[1].words.join('/'),
+ players: Array.from(group[1].players)
+ };
+ }
+ );
+
+ words_submitted.sort((a,b) => {
+ return b.players.length - a.players.length;
+ });
+
+ /* Put this round's scores into the game state object so it will
+ * be sent to any new clients that join. */
+ this.state.scores = {
+ scores: scores,
+ words: words_submitted
+ };
+
+ /* And broadcast the scores to all connected clients. */
+ this.broadcast_event_object('scores', this.state.scores);
+ }