From a620647376cf0b5b6e79bb3741ae7fb86fa877ff Mon Sep 17 00:00:00 2001
From: Anuken <arnukren@gmail.com>
Date: Wed, 27 May 2026 14:50:59 -0400
Subject: [PATCH] Data patch save format changes

---
 core/src/mindustry/io/SaveVersion.java  | 11 ++++++++---
 core/src/mindustry/mod/DataPatcher.java |  1 +
 2 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/core/src/mindustry/io/SaveVersion.java b/core/src/mindustry/io/SaveVersion.java
index 94222fd9ca..bdd8e4c337 100644
--- a/core/src/mindustry/io/SaveVersion.java
+++ b/core/src/mindustry/io/SaveVersion.java
@@ -520,7 +520,8 @@ public abstract class SaveVersion extends SaveFileReader{
     }
 
     public void skipDataPatches(DataInput stream) throws IOException{
-        int amount = stream.readShort();
+        stream.readInt(); //version - ignored for now
+        int amount = stream.readInt();
         for(int i = 0; i < amount; i++){
             int len = stream.readInt();
             stream.skipBytes(len);
@@ -536,9 +537,11 @@ public abstract class SaveVersion extends SaveFileReader{
     }
 
     public void readDataPatches(DataInput stream) throws IOException{
+        stream.readInt(); //version - ignored for now
+
         Seq<String> patches = new Seq<>();
 
-        int patchAmount = stream.readShort();
+        int patchAmount = stream.readInt();
         for(int i = 0; i < patchAmount; i++){
             int len = stream.readInt();
             byte[] bytes = new byte[len];
@@ -572,8 +575,10 @@ public abstract class SaveVersion extends SaveFileReader{
     }
 
     public void writeDataPatches(DataOutput stream) throws IOException{
+        stream.writeInt(DataPatcher.patchFormatVersion);
+
         var patches = state.patcher.patches;
-        stream.writeShort(patches.size);
+        stream.writeInt(patches.size);
         for(var patchset : patches){
             byte[] bytes = patchset.patch.getBytes(Strings.utf8);
             stream.writeInt(bytes.length);
diff --git a/core/src/mindustry/mod/DataPatcher.java b/core/src/mindustry/mod/DataPatcher.java
index b758ef44b8..02d5e5109b 100644
--- a/core/src/mindustry/mod/DataPatcher.java
+++ b/core/src/mindustry/mod/DataPatcher.java
@@ -28,6 +28,7 @@ import java.util.*;
 @SuppressWarnings("unchecked")
 public class DataPatcher{
     public static final int maxImageSize = 1024;
+    public static final int patchFormatVersion = 1;
 
     private static final Object root = new Object();
     private static final ObjectMap<String, ContentType> nameToType = new ObjectMap<>();