Fix: print ranking list with my rank

src/game/lib/ranking_record_manager.js

@@ -1,7 +1,8 @@
 class RankingRecord {
 
-	constructor(rank, userName, score) {
+	constructor(rank, userID, userName, score) {
 		this.rank = rank;
+		this.userID = userID;
 		this.userName = userName;
 		this.score = score;
 	}
@@ -35,6 +36,10 @@ class RankingRecordManager {
 		return this.rankingRecords[index].rank;
 	}
 
+	getUserIDAt(index) {
+		return this.rankingRecords[index].userID;
+	}
+
 	getUserNameAt(index) {
 		return this.rankingRecords[index].userName;
 	}