From 636a7dee9856032557b506b3052aae58ea9abc28 Mon Sep 17 00:00:00 2001
From: anth64 <anth64@protonmail.com>
Date: Fri, 31 Jul 2026 07:38:56 +0200
Subject: [PATCH] feat: filter buffer data sent to visualizer clients by view
 distance

---
 ClaimLink/ClaimLinkVisualizerNetwork.cs | 20 +++++++++++++++++++-
 ClaimLink/modinfo.json                  |  2 +-
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/ClaimLink/ClaimLinkVisualizerNetwork.cs b/ClaimLink/ClaimLinkVisualizerNetwork.cs
index a553a48..2ecb0e7 100644
--- a/ClaimLink/ClaimLinkVisualizerNetwork.cs
+++ b/ClaimLink/ClaimLinkVisualizerNetwork.cs
@@ -66,10 +66,17 @@ internal static class ClaimLinkVisualizerNetwork
     {
         ClaimLinkBufferResponse response = new();
 
+        BlockPos playerPos = toPlayer.Entity.Pos.AsBlockPos;
+        int radius = toPlayer.WorldData.LastApprovedViewDistance;
+
         foreach (int groupId in ClaimLinkModSystem.Registry.All)
         {
             ClaimLinkBufferEntryDto entry = new() { GroupId = groupId };
             foreach (Cuboidi cuboid in ClaimLinkBuffer.GetBuffer(groupId))
+            {
+                if (!IsNearby(cuboid, playerPos, radius))
+                    continue;
+
                 entry.Cuboids.Add(
                     new ClaimLinkBufferCuboidDto
                     {
@@ -81,9 +88,20 @@ internal static class ClaimLinkVisualizerNetwork
                         MaxZ = cuboid.MaxZ,
                     }
                 );
-            response.Entries.Add(entry);
+            }
+
+            if (entry.Cuboids.Count > 0)
+                response.Entries.Add(entry);
         }
 
         api.Network.GetChannel(ChannelName).SendPacket(response, toPlayer);
     }
+
+    private static bool IsNearby(Cuboidi cuboid, BlockPos playerPos, int radius) =>
+        cuboid.MinX <= playerPos.X + radius
+        && cuboid.MaxX >= playerPos.X - radius
+        && cuboid.MinY <= playerPos.Y + radius
+        && cuboid.MaxY >= playerPos.Y - radius
+        && cuboid.MinZ <= playerPos.Z + radius
+        && cuboid.MaxZ >= playerPos.Z - radius;
 }
diff --git a/ClaimLink/modinfo.json b/ClaimLink/modinfo.json
index 33d3556..65ce703 100644
--- a/ClaimLink/modinfo.json
+++ b/ClaimLink/modinfo.json
@@ -8,7 +8,7 @@
         "anth64"
     ],
     "description": "Link claims together with groups.",
-    "version": "0.2.0",
+    "version": "0.3.0",
     "dependencies": {
         "game": "1.22.5",
         "commandhook": "2.1.0"