Vector 타입 추가

@@ -23,4 +23,9 @@ export interface UpdateRoomUser {
 export interface ChatData {
 export interface ChatData {
   sender: string;
   sender: string;
   message: string;
   message: string;
-}
\ No newline at end of file
+}
+
+export interface Vector {
+  x: number;
+  y: number;
+}