From 3eaa3c7bfbb69133007cf00188907bd93a0bc043 Mon Sep 17 00:00:00 2001
From: 1F616EMO~nya <root@1f616emo.xyz>
Date: Sun, 14 Jul 2024 17:49:07 +0800
Subject: [PATCH] Avoid error if battery holder exists but technic not
 installed (#107)

---
 nodes/node_battery_holder.lua | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/nodes/node_battery_holder.lua b/nodes/node_battery_holder.lua
index 5d21b4b..dd1131a 100644
--- a/nodes/node_battery_holder.lua
+++ b/nodes/node_battery_holder.lua
@@ -67,6 +67,10 @@ minetest.register_node("digtron:battery_holder", {
 	-- Allow all items with energy storage to be placed in the inventory
 	allow_metadata_inventory_put = function(_, listname, _, stack)
 		if listname == "batteries" then
+			if not minetest.global_exists("technic") then
+				return 0
+			end
+
 			local node_name = stack:get_name()
 
 			-- Allow all items with energy storage from technic mod