From b513d92456e9c5ca55be0c30033a3ade3c453bf3 Mon Sep 17 00:00:00 2001
From: Acts1631 <69813585+acts-1631@users.noreply.github.com>
Date: Tue, 15 Sep 2026 20:34:09 -0400
Subject: [PATCH] Deduplicate requested assets during handshake (#12667)

* Deduplicate requested assets during handshake

* Use Bits for asset request deduplication
---
 core/src/mindustry/core/NetServer.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/src/mindustry/core/NetServer.java b/core/src/mindustry/core/NetServer.java
index 5a6af323bc..cbc089ebbf 100644
--- a/core/src/mindustry/core/NetServer.java
+++ b/core/src/mindustry/core/NetServer.java
@@ -972,8 +972,10 @@ public class NetServer implements ApplicationListener{
         }else{
             Seq<DataAsset> res = new Seq<>();
             Seq<DataAsset> allAssets = state.data.getAllExternalAssets();
+            Bits requestedIds = new Bits(allAssets.size);
             for(short id : ids){
-                if(id >= allAssets.size || id < 0) continue;
+                if(id >= allAssets.size || id < 0 || requestedIds.get(id)) continue;
+                requestedIds.set(id);
                 res.add(allAssets.get(id));
             }