From d8b067553d663861fde2957d35836774f9436b62 Mon Sep 17 00:00:00 2001
From: jodokus31 <33641866+jodokus31@users.noreply.github.com>
Date: Wed, 27 Dec 2023 16:45:02 +0100
Subject: [PATCH 1/2] Bugfixes regarding upgrading

---
 control.lua | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/control.lua b/control.lua
index 921c21d..d12da16 100644
--- a/control.lua
+++ b/control.lua
@@ -403,7 +403,7 @@ local function try_upgrade_single_entity(entity, target_name, player)
     -- same entity name: f.e. upgrade belt to belt
     local direction = entity.get_upgrade_direction()
     -- simply change direction
-    if entity.direction ~= direction then
+    if direction and entity.direction and entity.direction ~= direction then
       entity.direction = direction
       entity.cancel_upgrade(player.force, player)
       return SUCCESS_DONE_ALL
@@ -462,9 +462,7 @@ local function try_upgrade(entity, player, state)
   local target_name = target_prototype.name
 
   if entity.type == "underground-belt" and entity.neighbours then
-   return try_upgrade_paired_entity(entity, entity.neighbours, target_name, player, true)
-  elseif entity.type == "pipe-to-ground" and entity.neighbours[1] and entity.neighbours[1][1] then
-    return try_upgrade_paired_entity(entity, entity.neighbours[1][1], target_name, player, false)
+    return try_upgrade_paired_entity(entity, entity.neighbours, target_name, player, true)
   else
     return try_upgrade_single_entity(entity, target_name, player)
   end

From 0a52878d804d670bb14923d88b90e0199e1d2e7a Mon Sep 17 00:00:00 2001
From: jodokus31 <33641866+jodokus31@users.noreply.github.com>
Date: Wed, 27 Dec 2023 16:49:10 +0100
Subject: [PATCH 2/2] Update version and changelog

---
 changelog.txt | 6 ++++++
 info.json     | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/changelog.txt b/changelog.txt
index 21f9d9d..8503478 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,4 +1,10 @@
 ---------------------------------------------------------------------------------------------------
+Version: 0.5.9
+Date: 2023-12-27
+  Bugfixes:
+    - Fix bug, when upgrading underground pipes.
+    - Try to fix bug, when upgrading only the direction of entities. Not repro for me, but I added some additional nil checks
+---------------------------------------------------------------------------------------------------
 Version: 0.5.8
 Date: 2023-07-16
   Changes:
diff --git a/info.json b/info.json
index 85b4abe..422c347 100644
--- a/info.json
+++ b/info.json
@@ -1,6 +1,6 @@
 {
 	"name": "autobuild",
-	"version": "0.5.8",
+	"version": "0.5.9",
 	"factorio_version": "1.1",
 	"title": "Autobuild",
 	"author": "Therax",