Game, WordGuessingGame 추가

+import { User } from "../user/User";
+
+export interface Game {
+  join(user: User): void;
+  leave(user: User): void;
+}

+import { roomChatHandler } from "../message/handler/roomChatHandler";
+import { Room } from "../room/Room";
+import { User } from "../user/User";
+import { Game } from "./Game";
+
+export class WorldGuessingGame implements Game {
+  room: Room;
+  maxRound: number;
+  round: number;
+
+  constructor(room: Room) {
+    this.room = room;
+    if (this.room.users.length < 2) {
+      throw new Error("인원이 부족합니다.");
+    }
+
+    // TODO: 방장이 설정
+    this.maxRound = 5;
+    this.round = 1;
+  }
+
+  join(user: User): void {
+    throw new Error("Method not implemented.");
+  }
+
+  leave(user: User): void {
+    throw new Error("Method not implemented.");
+  }
+}

@@ -15,7 +15,7 @@ export class Room {
   public name: string;
   public readonly maxUsers: number;
 
-  private users: User[] = [];
+  public users: User[] = [];
 
   private closed: boolean = false;