[Add] FishNet

2026-03-30 20:11:57 +07:00
parent ee793a3361
commit c22c08753a
1797 changed files with 197950 additions and 1 deletions
@@ -0,0 +1,47 @@
+using FishNet.Object;
+using FishNet.Serializing;
+using FishNet.Transporting;
+
+namespace FishNet.Managing.Utility
+{
+    public class Packets
+    {
+        /// <summary>
+        /// Returns written data length for packet.
+        /// </summary>
+        internal static int GetPacketLength(ushort packetId, PooledReader reader, Channel channel)
+        {
+            /* Broadcast is a special circumstance where data
+             * will not be purged even if unreliable.
+             * This is because a broadcast receiver may not
+             * be set, which could be intentional. Because of this
+             * length is always sent to skip
+             * past the broadcast data.
+             *
+             * Reliables also need length read in the instance a client
+             * sends data to an object which server is despawning. Without
+             * parsing length the remainer data from client will be corrupt. */
+            /* // todo: we will not always get length on reconciles once
+             * the issue with parsed headers is resolved. */
+            PacketId pid = (PacketId)packetId;
+            if (channel == Channel.Reliable || pid == PacketId.Broadcast || pid == PacketId.SyncType || pid == PacketId.Reconcile)
+            {
+                return reader.ReadInt32();
+            }
+            // Unreliable purges remaining.
+            else if (channel == Channel.Unreliable)
+            {
+                return (int)MissingObjectPacketLength.PurgeRemaiming;
+            }
+            /* Unhandled. This shouldn't be possible
+             * since both reliable and unreliable is checked.
+             * There are no other options. This is merely here
+             * for a sanity check. */
+            else
+            {
+                reader.NetworkManager.LogError($"Operation is unhandled for packetId {(PacketId)packetId} on channel {channel}.");
+                return (int)MissingObjectPacketLength.PurgeRemaiming;
+            }
+        }
+    }
+}