From 37bbb91201e8570dce7e9f8e0a075aee1cbda4c3 Mon Sep 17 00:00:00 2001
From: Zihao Zhang <zzh8829@gmail.com>
Date: Sat, 13 Jan 2024 07:32:54 -0800
Subject: [PATCH] fix nil crash when loading old save (#223)

* fix nil crash

* fix crash

* Update biofluid.lua
---
 migrations/biofluid.lua         | 5 ++++-
 scripts/turd/turd-migration.lua | 1 +
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/migrations/biofluid.lua b/migrations/biofluid.lua
index 34bd3bde..378f4b82 100644
--- a/migrations/biofluid.lua
+++ b/migrations/biofluid.lua
@@ -6,6 +6,9 @@ require 'scripts.biofluid.biofluid-gui'
 local broken_graphics = {}
 local invalid_coords = {}
 
+global.biofluid_undergrounds = global.biofluid_undergrounds or {}
+global.network_positions = global.network_positions or {}
+
 for _, surface in pairs(game.surfaces) do
     local network_positions = global.network_positions[surface.index]
     if network_positions then
@@ -42,4 +45,4 @@ end
 
 for _, entity in pairs(broken_graphics) do
     Biofluid.update_graphics(entity)
-end
\ No newline at end of file
+end
diff --git a/scripts/turd/turd-migration.lua b/scripts/turd/turd-migration.lua
index 9f57bf83..0c70f365 100644
--- a/scripts/turd/turd-migration.lua
+++ b/scripts/turd/turd-migration.lua
@@ -3,6 +3,7 @@ return function(master_tech_name, sub_tech_name)
     local reset_time_in_ticks = reset_time_in_hours * 3600 * 60
 
     global.turd_migrations = global.turd_migrations or {}
+    global.turd_bonuses = global.turd_bonuses or {}
 
     for _, force in pairs(game.forces) do
         global.turd_migrations[force.index] = global.turd_migrations[force.index] or {}