From ebedc56724fd03f4e4dbfc554d8025721b544769 Mon Sep 17 00:00:00 2001
From: Davis Cook <daviscook447@gmail.com>
Date: Thu, 21 Apr 2022 21:46:37 -0400
Subject: [PATCH] fix crash if curved rail has no items_to_place_this

---
 control.lua | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/control.lua b/control.lua
index 4e48c28..978dc9b 100644
--- a/control.lua
+++ b/control.lua
@@ -75,7 +75,7 @@ local function getRailTypes()
                 end
             end
         end
-        if proto.type == "curved-rail" then
+        if proto.type == "curved-rail" and proto.items_to_place_this then
             for _, item in pairs(proto.items_to_place_this) do
                 --log(serpent.block(item))
                 local item_proto = game.item_prototypes[item.name]