feat: filter buffer data sent to visualizer clients by view distance

ClaimLink/ClaimLinkModSystem.cs

@@ -35,6 +35,7 @@ public class ClaimLinkModSystem : ModSystem
         GroupCmdListener = new GroupCommandListener();
         CommandHookModSystem.Register(GroupCmdListener);
         ClaimLinkChatCommand.Register(api);
+        ClaimLinkVisualizerNetwork.Start(api);
 
         api.Event.PlayerDisconnect += CommandListener.OnPlayerDisconnect;
         api.Event.PlayerDisconnect += GroupCommandListener.OnPlayerDisconnect;

ClaimLink/ClaimLinkVisualizerNetwork.cs

@@ -0,0 +1,107 @@
+using System.Collections.Generic;
+using ProtoBuf;
+using Vintagestory.API.MathTools;
+using Vintagestory.API.Server;
+
+namespace ClaimLink;
+
+[ProtoContract]
+public class ClaimLinkBufferRequest { }
+
+[ProtoContract]
+public class ClaimLinkBufferCuboidDto
+{
+    [ProtoMember(1)]
+    public int MinX;
+
+    [ProtoMember(2)]
+    public int MinY;
+
+    [ProtoMember(3)]
+    public int MinZ;
+
+    [ProtoMember(4)]
+    public int MaxX;
+
+    [ProtoMember(5)]
+    public int MaxY;
+
+    [ProtoMember(6)]
+    public int MaxZ;
+}
+
+[ProtoContract]
+public class ClaimLinkBufferEntryDto
+{
+    [ProtoMember(1)]
+    public int GroupId;
+
+    [ProtoMember(2)]
+    public List<ClaimLinkBufferCuboidDto> Cuboids = new();
+}
+
+[ProtoContract]
+public class ClaimLinkBufferResponse
+{
+    [ProtoMember(1)]
+    public List<ClaimLinkBufferEntryDto> Entries = new();
+}
+
+internal static class ClaimLinkVisualizerNetwork
+{
+    internal const string ChannelName = "claimlinkvisualizer";
+
+    internal static void Start(ICoreServerAPI api)
+    {
+        api.Network
+            .RegisterChannel(ChannelName)
+            .RegisterMessageType<ClaimLinkBufferRequest>()
+            .RegisterMessageType<ClaimLinkBufferResponse>()
+            .SetMessageHandler<ClaimLinkBufferRequest>((fromPlayer, _) =>
+                SendBuffers(api, fromPlayer)
+            );
+    }
+
+    private static void SendBuffers(ICoreServerAPI api, IServerPlayer toPlayer)
+    {
+        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
+                    {
+                        MinX = cuboid.MinX,
+                        MinY = cuboid.MinY,
+                        MinZ = cuboid.MinZ,
+                        MaxX = cuboid.MaxX,
+                        MaxY = cuboid.MaxY,
+                        MaxZ = cuboid.MaxZ,
+                    }
+                );
+            }
+
+            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;
+}

ClaimLink/modinfo.json

@@ -8,7 +8,7 @@
         "anth64"
     ],
     "description": "Link claims together with groups.",
-    "version": "0.1.0",
+    "version": "0.3.0",
     "dependencies": {
         "game": "1.22.5",
         "commandhook": "2.1.0"