diff --git a/Account/_login.ts b/Account/_login.ts
index dfd0705..412f6dd 100644
--- a/Account/_login.ts
+++ b/Account/_login.ts
@@ -1,9 +1,9 @@
 import { userData } from "../Classes/userData.js";
 import { characters } from "../Characters/characters.js";
-import { users } from "./users.js";
+import { userCheckResult, users } from "./users.js";
 import { db } from "../index.js"
 import { Socket } from "socket.io";
-import { loginResponse } from "../Classes/Outgoing/accountResponses.js";
+import { loginResponse, loginResult } from "../Classes/Outgoing/accountResponses.js";
 import { Endpoints } from "../endpoints.js";
 
 export async function login(socket : Socket, data){
@@ -14,12 +14,13 @@ export async function login(socket : Socket, data){
         return
     }
 
-    const user = await users.readUser(db, json.login, json.password);
+    const userCheck = await users.readUser(db, json.login, json.password);
 
-    if(user){
+    if(userCheck.result == userCheckResult.OK){
+        const user = userCheck.userData;
         console.log(`User ${user.login} logged in`);
         const character = await characters.readCharacter(db, user.id);
-        const result = new loginResponse(user, character)
+        const result = new loginResponse(loginResult.success, user, character)
 
         socket.user = user
         socket.character = character
@@ -27,7 +28,7 @@ export async function login(socket : Socket, data){
     }
     else{
         console.log(`User ${json.login} did not log in`);
-        const result = new loginResponse(null, null)
+        const result = new loginResponse(loginResult.fail, null, null)
         socket.emit(Endpoints.Login, JSON.stringify(result));
     }
 }
\ No newline at end of file
diff --git a/Account/_register.ts b/Account/_register.ts
index 4eee402..2373801 100644
--- a/Account/_register.ts
+++ b/Account/_register.ts
@@ -1,8 +1,8 @@
 import { userData } from "../Classes/userData.js";
-import { users } from "./users.js";
+import { userCheckResult, users } from "./users.js";
 import { db } from "../index.js"
 import { Socket } from "socket.io";
-import { loginResponse } from "../Classes/Outgoing/accountResponses.js";
+import { loginResponse, loginResult } from "../Classes/Outgoing/accountResponses.js";
 import { Endpoints } from "../endpoints.js";
 import { characters } from "../Characters/characters.js";
 
@@ -14,19 +14,26 @@ export async function register(socket : Socket, data){
         return
     }
 
-    const user = await users.createUser(db, json.login, json.password);
+    const checkExisting = await users.readUser(db, json.login, null)
+    if(checkExisting.result != userCheckResult.NotExist){
+        const result = new loginResponse(loginResult.accountExists, null, null)
+        socket.emit(Endpoints.Register, JSON.stringify(result))
+        return
+    }
+
+    const user = (await users.createUser(db, json.login, json.password)).userData;
 
     if(user){
         console.log(`User ${user.login} registered`);
         const character = await characters.createCharacter(db, user.id);
-        const result = new loginResponse(user, character)
+        const result = new loginResponse(loginResult.success, user, character)
         socket.user = user
         socket.character = character
         socket.emit(Endpoints.Register, JSON.stringify(result))
     }
     else{
         console.log(`User failed to register`);
-        const result = new loginResponse(null, null)
+        const result = new loginResponse(loginResult.fail, null, null)
         socket.emit(Endpoints.Register, JSON.stringify(result))
     }
 }
\ No newline at end of file
diff --git a/Account/users.ts b/Account/users.ts
index 1244e0a..d4e1f99 100644
--- a/Account/users.ts
+++ b/Account/users.ts
@@ -1,25 +1,45 @@
 import { userData } from "../Classes/userData.js";
-import { DatabaseController } from "../Database/dbcontroller.js";
+import { DatabaseController, dbUser } from "../Database/dbcontroller.js";
+
+export class userCheckResponse{
+    result : userCheckResult
+    userData : userData
+
+    constructor(result : userCheckResult, userData : userData){
+        this.result = result;
+        this.userData = userData;
+    }
+}
+
+export enum userCheckResult{
+    OK,
+    IncorrectPassword,
+    NotExist
+}
 
 export class users{
+
     static async createUser(db: DatabaseController, login : string, password : string){
         await db.run('INSERT INTO users (login, password) VALUES (?, ?)', [login, password]);
         return await this.readUser(db, login, password)
     }
 
-    static async readUser(db: DatabaseController, login : string, password : string): Promise<userData>{
-        let user = await db.select(`SELECT * FROM users WHERE login = ? AND password = ?`, [login, password])
+    static async readUser(db: DatabaseController, login : string, password : string): Promise<userCheckResponse>{
+        let user = await db.select<dbUser>(`SELECT * FROM users WHERE login = ? LIMIT 1`, [login])
         if (user.length > 0){
             let row = user[0]
-            return new userData({...row})
+            if (row.password != password){
+                return new userCheckResponse(userCheckResult.IncorrectPassword, null)
+            }
+            return new userCheckResponse(userCheckResult.OK, new userData({...row}))
         }
         else{
-            return null
+            return new userCheckResponse(userCheckResult.NotExist, null)
         }
     }
 
     static async readUserID(db: DatabaseController, id : number){
-        let user = await db.select(`SELECT * FROM users WHERE id = ?`, [id])
+        let user = await db.select<dbUser>(`SELECT * FROM users WHERE id = ?`, [id])
         return user;
     }
 }
\ No newline at end of file
diff --git a/Characters/characters.ts b/Characters/characters.ts
index f555437..35712c2 100644
--- a/Characters/characters.ts
+++ b/Characters/characters.ts
@@ -1,5 +1,5 @@
 import { characterData } from "../Classes/characterData.js";
-import { DatabaseController } from "../Database/dbcontroller.js";
+import { DatabaseController, dbCharacter } from "../Database/dbcontroller.js";
 
 export class characters{
     static async createCharacter(db: DatabaseController, userId : number){
@@ -8,7 +8,7 @@ export class characters{
     }
 
     static async readCharacter(db: DatabaseController, userId : number): Promise<characterData>{
-        let player = await db.select(`SELECT * FROM characters WHERE user_id = ? LIMIT 1`, [userId])
+        let player = await db.select<dbCharacter>(`SELECT * FROM characters WHERE user_id = ? LIMIT 1`, [userId])
         if (player.length > 0){
             let row = player[0]
             return new characterData({
@@ -23,7 +23,7 @@ export class characters{
     }
     
     static async savePlayer(db: DatabaseController, data: characterData){
-        await db.run(`UPDATE characters SET (inventory, questBook) VALUES (?,?) WHERE id = ?`, 
+        await db.run(`UPDATE characters SET inventory = ?, questBook = ? WHERE id = ?`, 
             [JSON.stringify(data.inventory), JSON.stringify(data.questBook), data.id])
     }
 }
\ No newline at end of file
diff --git a/Classes/Incoming/levelUpdateHost.ts b/Classes/Incoming/levelUpdateHost.ts
index c8e837f..f3d2b52 100644
--- a/Classes/Incoming/levelUpdateHost.ts
+++ b/Classes/Incoming/levelUpdateHost.ts
@@ -1,7 +1,10 @@
 import { levelState } from "../levelState.js";
 import { characterData } from "../characterData.js";
+import { Type } from "class-transformer";
 
 export class levelUpdateHost{
+    @Type(() => characterData)
     player : characterData
+    @Type(() => levelState)
     room : levelState
 }
\ No newline at end of file
diff --git a/Classes/Outgoing/accountResponses.ts b/Classes/Outgoing/accountResponses.ts
index 7ad92ad..67445ee 100644
--- a/Classes/Outgoing/accountResponses.ts
+++ b/Classes/Outgoing/accountResponses.ts
@@ -1,18 +1,24 @@
 import { characterData } from "../characterData.js";
 import { userData } from "../userData.js";
 
+export enum loginResult{
+    success,
+    fail,
+    accountExists
+}
+
 export class loginResponse{
-    result : boolean
+    result : loginResult
     userData : userData
     playerData : characterData
 
-    constructor(user : userData, player : characterData){
+    constructor(result: loginResult, user : userData, player : characterData){
         if (!user || !player){
-            this.result = false;
+            this.result = result;
             this.userData = this.playerData = null;
         }
         else{
-            this.result = true;
+            this.result = result;
             this.userData = user.makeSafe();
             this.playerData = player;
         }
diff --git a/Classes/levelState.ts b/Classes/levelState.ts
index 8a3c582..3dcda1b 100644
--- a/Classes/levelState.ts
+++ b/Classes/levelState.ts
@@ -2,6 +2,7 @@ import { enemyData } from "./enemyData.js";
 import { characterData } from "./characterData.js";
 import { propData } from "./propData.js";
 import { levelStateStart, levelStateState as levelStateInfo, levelStateUpdate } from "./Outgoing/levelStatePartial.js";
+import { Type } from "class-transformer";
 
 export class levelState{
     id : string
@@ -9,8 +10,11 @@ export class levelState{
     hostId : number = -1
     completed : boolean = false
     isDungeon : boolean = false
+    @Type(() => enemyData)
     enemies : enemyData[] = []
+    @Type(() => propData)
     objects : propData[] = []
+    @Type(() => characterData)
     players : characterData[] = []
 
     getRandomInt(max) {
@@ -61,7 +65,7 @@ export class levelState{
 
     removePlayer(player : characterData) : boolean{
         this.players = this.players.filter(p=> p !== player)
-        
+
         if(this.hostId == player.id){
             if(this.players.length > 0){
                 this.hostId = this.players[0].id
diff --git a/Database/dbcontroller.ts b/Database/dbcontroller.ts
index aa04de7..cfa4bba 100644
--- a/Database/dbcontroller.ts
+++ b/Database/dbcontroller.ts
@@ -1,6 +1,20 @@
 import sqlite3 from 'sqlite3'
 import { open, Database  } from 'sqlite'
 
+export class dbUser{
+    id : number
+    login : string
+    password : string
+}
+
+export class dbCharacter{
+    id : number
+    user_id : number
+    level : number
+    inventory : string
+    questBook : string
+}
+
 export class DatabaseController {
     private db: Database;
 
diff --git a/Level/_update.ts b/Level/_update.ts
index 6414a56..68eaabf 100644
--- a/Level/_update.ts
+++ b/Level/_update.ts
@@ -2,10 +2,11 @@ import { Socket } from "socket.io";
 import { levelUpdateHost } from "../Classes/Incoming/levelUpdateHost.js";
 import { characterData } from "../Classes/characterData.js";
 import { game } from "../game.js";
+import { plainToInstance } from "class-transformer";
 
 export function update(socket : Socket, data){
     let buff = Buffer.from(data, 'base64');
-    let data1 : levelUpdateHost = JSON.parse(buff.toString('utf-8'));
+    let data1 : levelUpdateHost = plainToInstance(levelUpdateHost, JSON.parse(buff.toString('utf-8')));
     let character : characterData = socket.character
 
     let room = game.lobbyState.rooms.find(l=>l.id == data1.room.id)
diff --git a/Lobby/_playerJoin.ts b/Lobby/_playerJoin.ts
index f6cbeb4..a1d0a9f 100644
--- a/Lobby/_playerJoin.ts
+++ b/Lobby/_playerJoin.ts
@@ -2,7 +2,6 @@ import { lobbyJoin } from "../Classes/Incoming/lobbyJoin.js";
 import { levelState } from "../Classes/levelState.js";
 import { lobbyMessage } from "../Classes/lobbyMessage.js";
 import { characterData } from "../Classes/characterData.js";
-import { userData } from "../Classes/userData.js";
 import { game } from "../game.js";
 import { Socket } from "socket.io";
 import { Endpoints } from "../endpoints.js";
@@ -12,8 +11,6 @@ export function playerJoin(socket : Socket, data){
     let data1 : lobbyJoin = JSON.parse(buff.toString('utf-8'));
     let character : characterData = socket.character
 
-    console.log(character)
-
     character.room = "0_0"
     character.characterId = data1.player.characterId
     game.lobbyState.addUser(socket)
@@ -35,10 +32,6 @@ export function playerJoin(socket : Socket, data){
                 return room.copyState()
         })
     }
-    
-    console.log(spawnRoom)
-    console.log(spawnRoom.copyStart())
-    console.log(existingUsers)
 
     //send only player to all existing players
     socket.broadcast.emit(Endpoints.PlayerJoin, JSON.stringify(newUser));
diff --git a/index.ts b/index.ts
index 5deb041..cfd944d 100644
--- a/index.ts
+++ b/index.ts
@@ -1,7 +1,8 @@
 import './socketExtended.js';
+import 'reflect-metadata';
 import express from 'express';
 import { createServer } from 'http';
-import { Socket, Server as SocketIOServer } from 'socket.io';
+import { Server as SocketIOServer } from 'socket.io';
 import { game } from "./game.js";
 import { characters } from "./Characters/characters.js";
 import { registerItemCallbacks } from "./Items/itemSocket.js";
@@ -51,9 +52,9 @@ io.on('connection', (socket : SocketExtended) => {
         console.log(socket.id + " disconnected");
     });
 
-    socket.on('error',function(er){
-        console.log(er);
-    });
+    // socket.on('error',function(er){
+    //     console.log(er);
+    // });
 });
 
 //Send player updates to everyone
diff --git a/package-lock.json b/package-lock.json
index 248805e..19266c1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,8 +13,10 @@
         "@types/node": "^17.0.25",
         "@types/socket.io": "^3.0.2",
         "better-sqlite3": "^12.2.0",
+        "class-transformer": "^0.5.1",
         "cors": "^2.8.5",
         "express": "^4.17.3",
+        "reflect-metadata": "^0.2.2",
         "socket.io": "^4.4.1",
         "sqlite": "^5.1.1",
         "sqlite3": "^5.1.7",
@@ -531,6 +533,11 @@
         "node": ">=10"
       }
     },
+    "node_modules/class-transformer": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/class-transformer/-/class-transformer-0.5.1.tgz",
+      "integrity": "sha512-SQa1Ws6hUbfC98vKGxZH3KFY0Y1lm5Zm0SY8XX9zbK7FJCyVEac3ATW0RIpwzW+oOfmHE5PMPufDG9hCfoEOMw=="
+    },
     "node_modules/clean-stack": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/clean-stack/-/clean-stack-2.2.0.tgz",
@@ -1857,6 +1864,11 @@
         "node": ">= 6"
       }
     },
+    "node_modules/reflect-metadata": {
+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/reflect-metadata/-/reflect-metadata-0.2.2.tgz",
+      "integrity": "sha512-urBwgfrvVP/eAyXx4hluJivBKzuEbSQs9rKWCrCkbSxNv8mxPcUZKeuoF3Uy4mJl3Lwprp6yy5/39VWigZ4K6Q=="
+    },
     "node_modules/retry": {
       "version": "0.12.0",
       "resolved": "https://registry.npmjs.org/retry/-/retry-0.12.0.tgz",
@@ -3013,6 +3025,11 @@
       "resolved": "https://registry.npmjs.org/chownr/-/chownr-2.0.0.tgz",
       "integrity": "sha512-bIomtDF5KGpdogkLd9VspvFzk9KfpyyGlS8YFVZl7TGPBHL5snIOnxeshwVgPteQ9b4Eydl+pVbIyE1DcvCWgQ=="
     },
+    "class-transformer": {
+      "version": "0.5.1",
+      "resolved": "https://registry.npmjs.org/class-transformer/-/class-transformer-0.5.1.tgz",
+      "integrity": "sha512-SQa1Ws6hUbfC98vKGxZH3KFY0Y1lm5Zm0SY8XX9zbK7FJCyVEac3ATW0RIpwzW+oOfmHE5PMPufDG9hCfoEOMw=="
+    },
     "clean-stack": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/clean-stack/-/clean-stack-2.2.0.tgz",
@@ -4001,6 +4018,11 @@
         "util-deprecate": "^1.0.1"
       }
     },
+    "reflect-metadata": {
+      "version": "0.2.2",
+      "resolved": "https://registry.npmjs.org/reflect-metadata/-/reflect-metadata-0.2.2.tgz",
+      "integrity": "sha512-urBwgfrvVP/eAyXx4hluJivBKzuEbSQs9rKWCrCkbSxNv8mxPcUZKeuoF3Uy4mJl3Lwprp6yy5/39VWigZ4K6Q=="
+    },
     "retry": {
       "version": "0.12.0",
       "resolved": "https://registry.npmjs.org/retry/-/retry-0.12.0.tgz",
diff --git a/package.json b/package.json
index c7cfb0f..2aa6762 100644
--- a/package.json
+++ b/package.json
@@ -14,8 +14,10 @@
     "@types/node": "^17.0.25",
     "@types/socket.io": "^3.0.2",
     "better-sqlite3": "^12.2.0",
+    "class-transformer": "^0.5.1",
     "cors": "^2.8.5",
     "express": "^4.17.3",
+    "reflect-metadata": "^0.2.2",
     "socket.io": "^4.4.1",
     "sqlite": "^5.1.1",
     "sqlite3": "^5.1.7",
diff --git a/tsconfig.json b/tsconfig.json
index 5de0b81..4a6a1c2 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,6 +6,8 @@
       "esModuleInterop": true,
       "allowSyntheticDefaultImports": true,
       "sourceMap": true,
-      "noImplicitAny": false
+      "noImplicitAny": false,
+      "experimentalDecorators": true,
+      "emitDecoratorMetadata": true,
     }
   }
\ No newline at end of file