fix and succeed in joining room

src/api/ocgcore/ocgAdapter/ctos/ctosJoinGame.ts

@@ -3,8 +3,6 @@ import { ygoProPacket } from "../packet";
 import { CTOS_JOIN_GAME } from "../protoDecl";
 import { strEncodeUTF16 } from "../util";
 
-const littleEndian: boolean = true;
-
 export default class CtosJoinGamePacket extends ygoProPacket {
   constructor(pb: ygopro.YgoCtosMsg) {
     const joinGame = pb.ctos_join_game;
@@ -13,16 +11,19 @@ export default class CtosJoinGamePacket extends ygoProPacket {
     const gameId = joinGame.gameid;
     const passWd = strEncodeUTF16(joinGame.passwd);
 
-    const exDataLen = 2 + 4 + passWd.length;
+    const exDataLen = 4 + 4 + passWd.length;
     const exData = new Uint8Array(exDataLen);
     const dataView = new DataView(exData.buffer);
 
-    dataView.setUint16(0, version, littleEndian);
-    dataView.setUint8(2, gameId & 0xff);
-    dataView.setUint8(3, (gameId >> 8) & 0xff);
-    dataView.setUint8(4, (gameId >> 16) & 0xff);
-    dataView.setUint8(5, (gameId >> 32) & 0xff);
-    exData.slice(6, exDataLen).set(passWd);
+    dataView.setUint8(0, version & 0xff);
+    dataView.setUint8(1, (version >> 8) & 0xff);
+    dataView.setUint8(2, 0);
+    dataView.setUint8(3, 0);
+    dataView.setUint8(4, gameId & 0xff);
+    dataView.setUint8(5, (gameId >> 8) & 0xff);
+    dataView.setUint8(6, (gameId >> 16) & 0xff);
+    dataView.setUint8(7, (gameId >> 32) & 0xff);
+    exData.set(passWd, 3);
 
     super(exData.length + 1, CTOS_JOIN_GAME, exData);
   }

src/api/ocgcore/ocgAdapter/packet.ts

@@ -20,7 +20,7 @@ export class ygoProPacket {
 
     dataView.setUint16(0, this.packetLen, littleEndian);
     dataView.setUint8(2, this.proto);
-    array.slice(3, this.packetLen + 2).set(this.exData);
+    array.set(this.exData, 3);
 
     return array;
   }