From 9781722ae4f507c7318830b4ef2f8e3a0003063e Mon Sep 17 00:00:00 2001
From: Ellpeck <megamaximal@gmail.com>
Date: Fri, 20 Dec 2019 23:32:40 +0100
Subject: [PATCH] make json writing deal with defaults easily

---
 MLEM.Data/NetExtensions.cs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/MLEM.Data/NetExtensions.cs b/MLEM.Data/NetExtensions.cs
index 436a3c9..0c56562 100644
--- a/MLEM.Data/NetExtensions.cs
+++ b/MLEM.Data/NetExtensions.cs
@@ -1,4 +1,5 @@
 using System;
+using System.Collections.Generic;
 using System.IO;
 using System.IO.Compression;
 using Lidgren.Network;
@@ -36,6 +37,8 @@ namespace MLEM.Data {
         }
 
         public static void WriteObject<T>(this NetBuffer buffer, T obj, JsonSerializer serializer) {
+            if (EqualityComparer<T>.Default.Equals(obj, default))
+                buffer.Write(0);
             using (var memory = new MemoryStream()) {
                 using (var gzip = new DeflateStream(memory, CompressionLevel.Fastest, true))
                     serializer.Serialize(new BsonDataWriter(gzip), obj, typeof(T));
@@ -47,6 +50,8 @@ namespace MLEM.Data {
 
         public static T ReadObject<T>(this NetBuffer buffer, JsonSerializer serializer) {
             var length = buffer.ReadInt32();
+            if (length <= 0)
+                return default;
             var arr = buffer.ReadBytes(length);
             using (var memory = new MemoryStream(arr)) {
                 using (var gzip = new DeflateStream(memory, CompressionMode.Decompress, true))