add leaderboard

game.js

@@ -1,12 +1,18 @@
 import GameBasic from "./common/game_basic.js";
 import NPC from "./common/npc.js";
 
+import initDb from './db.js';
+
+import { createHash } from "crypto";
+
+let db = await initDb();
+
 class Game extends GameBasic {
     constructor() {
         super();
         this.ws = [];
     }
-    sync(full = false) {
+    async sync(full = false) {
         let onScreen = this.entities.filter(x => x && x.health > 0).length;
 
         onScreen += 4;
@@ -31,11 +37,24 @@ class Game extends GameBasic {
         if (entList.length == 0) return;
 
         for (let client of this.ws) {
-            if (!client.active) continue;
-
             let wsEnt = client.ent;
 
             if (!wsEnt) continue;
+            
+            if (full && wsEnt.health < 1 && !wsEnt.picked) {
+                wsEnt.picked = true;
+
+                const hash = createHash('sha256');
+                hash.update(client.ip || '');
+
+                await db.run('INSERT INTO stats (username, ip, ko) VALUES (?,?,?)', [
+                    wsEnt.you,
+                    hash.digest('hex'),
+                    wsEnt.headCount
+                ]);
+            }
+
+            if (!client.active) continue;
 
             wsEnt.isYou = true;