1 files changed, 29 insertions, 30 deletions

diff --git a/utils/board.js b/utils/board.js
index 72c7951..f9a3b9d 100644
--- a/utils/board.js
+++ b/utils/board.js
@@ -18,9 +18,9 @@ export const emptyBoard = [
 
 export const letters_total = 102;
 
-export function makeLettersBag () {
-	return {
-		letters : {
+export class Bag {
+	constructor() {
+		this.letters = {
 			JOKER:{count:2, points:0 },
 			E:{count:15, points:1}, A:{count:9, points:1}, I:{count:9, points:1}, N:{count:6, points:1}, O:{count:6, points:1}, R:{count:6, points:1}, S:{count:6, points:1}, T:{count:6, points:1}, U:{count:6, points:1}, L:{count:5, points:1},
 			D:{count:3, points:2}, G:{count:2, points:2}, M:{count:3, points:2},
@@ -28,35 +28,34 @@ export function makeLettersBag () {
 			F:{count:2, points:4}, H:{count:2, points:4}, V:{count:2, points:4},
 			J:{count:1, points:8}, Q:{count:1, points:8},
 			K:{count:1, points:10}, W:{count:1, points:10}, X:{count:1, points:10}, Y:{count:1, points:10}, Z:{count:1, points:10},
-		},
-		remaining: letters_total,
-	};
-}
-
-const allLetters = Object.keys(makeLettersBag().letters);
-
-export function pickLetters(bag, count) {
-	if (count > bag.remaining) {
-		count = bag.remaining;
+		};
+		this.remaining = letters_total;
 	}
-	let ret = [];
-	for (let i=0; i<count; i++) {
-		let n = Math.floor(Math.random() * bag.remaining);
-		let j = 0;
-		for (;;) {
-			if (bag.letters[allLetters[j]].count === 0) {
-				j++;
-			} else if (bag.letters[allLetters[j]].count < n) {
-				n -= bag.letters[allLetters[j]].count;
-				j++;
-			} else {
-				n = 0;
-				break;
+	pick(count) {
+		if (count > this.remaining) {
+			count = this.remaining;
+		}
+		let ret = [];
+		for (let i=0; i<count; i++) {
+			let n = Math.floor(Math.random() * this.remaining);
+			let j = 0;
+			for (;;) {
+				if (this.letters[allLetters[j]].count === 0) {
+					j++;
+				} else if (this.letters[allLetters[j]].count < n) {
+					n -= this.letters[allLetters[j]].count;
+					j++;
+				} else {
+					n = 0;
+					break;
+				}
 			}
+			this.letters[allLetters[j]].count--;
+			this.remaining--;
+			ret.push(allLetters[j]);
 		}
-		bag.letters[allLetters[j]].count--;
-		bag.remaining--;
-		ret.push(allLetters[j]);
+		return ret;
 	}
-	return ret;
 }
+
+const allLetters = Object.keys(new Bag().letters);