Data update

Task/Set-puzzle/JavaScript/set-puzzle.js

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+// Constants
+const number = ["1", "2", "3"];
+const color = ["red", "green", "purple"];
+const shade = ["solid", "open", "striped"];
+const shape = ["oval", "squiggle", "diamond"];
+
+// Card class
+class Card {
+  constructor(value) {
+    this.value = value;
+  }
+
+  toString() {
+    return `${number[Math.floor(this.value/27)]} ${color[Math.floor(this.value/9)%3]} ${shade[Math.floor(this.value/3)%3]} ${shape[this.value%3]}`;
+  }
+}
+
+// Shuffle an array
+function shuffle(array) {
+  for (let i = array.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    [array[i], array[j]] = [array[j], array[i]];
+  }
+}
+
+// Main game function
+function game(level, cards, sets) {
+  // Create deck
+  const deck = [];
+  for (let i = 0; i < 81; i++) {
+    deck.push(new Card(i));
+  }
+
+  let found = [];
+  while (found.length !== sets) {
+    found = [];
+
+    // Deal
+    shuffle(deck);
+
+    // Consider all triplets
+    for (let i = 2; i < cards; i++) {
+      const c1 = deck[i];
+      for (let j = 1; j < i; j++) {
+        const c2 = deck[j];
+
+        outer: for (let k = 0; k < j; k++) {
+          const c3 = deck[k];
+
+          // Check if it's a set
+          for (let f = 1; f < 81; f *= 3) {
+            if ((Math.floor(c1.value/f)%3 + Math.floor(c2.value/f)%3 + Math.floor(c3.value/f)%3) % 3 !== 0) {
+              continue outer; // not a set
+            }
+          }
+
+          // It's a set
+          found.push([c1, c2, c3]);
+        }
+      }
+    }
+  }
+
+  // Output results
+  console.log(`${level} game. ${cards} cards, ${sets} sets.`);
+  console.log("Cards:");
+  for (let i = 0; i < cards; i++) {
+    console.log("  ", deck[i].toString());
+  }
+
+  console.log("Sets:");
+  for (const set of found) {
+    console.log(`  ${set[0]}\n  ${set[1]}\n  ${set[2]}`);
+  }
+}
+
+// Run the games
+function main() {
+  // Set random seed with current time
+  Math.random();
+
+  game("Basic", 9, 4);
+  game("Advanced", 12, 6);
+}
+
+main();