refactors, fix username check

game.js

@@ -1,6 +1,7 @@
 import GameBasic from "./common/game_basic.js";
 import NPC from "./common/npc.js";
 import Shooter from "./common/shooter.js";
+import fetch from "node-fetch";
 
 import initDb from './db.js';
 
@@ -115,6 +116,40 @@ class Game extends GameBasic {
 
         setInterval(function () { that.sync(false) }, 1000 / 10);
         setInterval(function () { that.sync(true) }, 1000);
+        setInterval(function () { that.clean() }, 1000);
+    }
+
+    clean() {
+        for (let ent in this.entities) {
+            let x = this.entities[ent];
+            if ( x.health > 0 || x.type != 'Player') return;
+            this.entites[ent] = false;
+        }
+    }
+
+    async authUser(ws, data) {
+        ws.token = data;
+
+        let f = new FormData();
+        f.append('token', ws.token);
+
+        let j = await fetch("https://bg.xuyezo.net/api/form/auth_api/",
+            {
+                "method": "post",
+                "body": f
+            }
+        );
+        j = await j.json();
+
+        if (j.username == '!nobody' || !j.username) return;
+
+        if (this.ws.findIndex(x => x.username == j.username && x.ent.health > 0) != -1) {
+            console.log(`Player ${ws.ent.you} uses username ${j.username} illegally`)
+            return;
+        }
+        ws.ent.username = ws.username = j.username;
+
+        console.log(`Player ${ws.ent.you} uses username ${ws.username}`)
     }
 }