From 56d8a5d585a44577863116be2b8bc8be31390933 Mon Sep 17 00:00:00 2001
From: Jonathan Coates <git@squiddev.cc>
Date: Thu, 15 Jul 2021 12:13:38 +0100
Subject: [PATCH] Don't update block states when there is no world

Fixes #856
---
 .../shared/peripheral/diskdrive/TileDiskDrive.java              | 2 +-
 .../computercraft/shared/peripheral/printer/TilePrinter.java    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/main/java/dan200/computercraft/shared/peripheral/diskdrive/TileDiskDrive.java b/src/main/java/dan200/computercraft/shared/peripheral/diskdrive/TileDiskDrive.java
index 3f97e224a..4f29f067e 100644
--- a/src/main/java/dan200/computercraft/shared/peripheral/diskdrive/TileDiskDrive.java
+++ b/src/main/java/dan200/computercraft/shared/peripheral/diskdrive/TileDiskDrive.java
@@ -442,7 +442,7 @@ private synchronized void unmountDisk( IComputerAccess computer )
 
     private void updateBlockState()
     {
-        if( remove ) return;
+        if( remove || level == null ) return;
 
         if( !diskStack.isEmpty() )
         {
diff --git a/src/main/java/dan200/computercraft/shared/peripheral/printer/TilePrinter.java b/src/main/java/dan200/computercraft/shared/peripheral/printer/TilePrinter.java
index 02d0693c2..cbd00bf33 100644
--- a/src/main/java/dan200/computercraft/shared/peripheral/printer/TilePrinter.java
+++ b/src/main/java/dan200/computercraft/shared/peripheral/printer/TilePrinter.java
@@ -438,7 +438,7 @@ private void updateBlockState()
 
     private void updateBlockState( boolean top, boolean bottom )
     {
-        if( remove ) return;
+        if( remove || level == null ) return;
 
         BlockState state = getBlockState();
         if( state.getValue( BlockPrinter.TOP ) == top & state.getValue( BlockPrinter.BOTTOM ) == bottom ) return;