From 1e6ec0c5b14180fecfd5dfbdf425c11d90ac764a Mon Sep 17 00:00:00 2001
From: piegames <git@piegames.de>
Date: Mon, 4 Apr 2022 13:11:00 +0200
Subject: [PATCH] Fix #77

---
 .../piegames/blockmap/renderer/ChunkRenderer_1_18.java   | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/BlockMap-core/src/main/java/de/piegames/blockmap/renderer/ChunkRenderer_1_18.java b/BlockMap-core/src/main/java/de/piegames/blockmap/renderer/ChunkRenderer_1_18.java
index a6e9e32..37e343f 100644
--- a/BlockMap-core/src/main/java/de/piegames/blockmap/renderer/ChunkRenderer_1_18.java
+++ b/BlockMap-core/src/main/java/de/piegames/blockmap/renderer/ChunkRenderer_1_18.java
@@ -188,9 +188,14 @@ Color getFinal() {
 						if (s < lowestLoadedSection) {
 							try {
 								var section = sections.get(s);
-								loadedSections[s + 4] = renderSection(section, blockColors);
+								if (section == null) {
+									/* Replace with surrogate empty section */
+									loadedSections[s + 4] = new BlockColor[4096];
+								} else {
+									loadedSections[s + 4] = renderSection(section, blockColors);
+								}
 								/* Read the biome for the top layer */
-								if (loadedTopBiomes == null) {
+								if (loadedTopBiomes == null && section != null) {
 									loadedTopBiomes = new String[16];
 									CompoundTag biomes = section.get("biomes").getAsCompoundTag().get();