PaperMC/patches/server/0886-Fix-async-entity-add-due-to-fungus-trees.patch
Spottedleaf 00331d943e Fix mushrooms not generating in swamps
During feature generation, light data is not initialised and
will always return 15 in Starlight. Vanilla can possibly return
0 if partially initialised, which allows some mushroom blocks to
generate.

In general, the brightness value from the light engine should not
be used until the chunk is ready. To emulate Vanilla behavior better,
we return 0 as the brightness during world gen unless the target
chunk is finished lighting.

The regular light retrieval outside of WorldGenRegion remains
the same, as behaviorally chunks not lit should be at max
skylight and zero block light.
2023-10-16 18:52:28 -07:00

35 lines
2.2 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Fri, 18 Mar 2022 21:30:00 -0700
Subject: [PATCH] Fix async entity add due to fungus trees
diff --git a/src/main/java/net/minecraft/server/level/WorldGenRegion.java b/src/main/java/net/minecraft/server/level/WorldGenRegion.java
index 78284a89900e6b3ee0c066d00ba3ddf043b63401..50ed7cfe1ecef6d075ba484804827cec83ba2bf2 100644
--- a/src/main/java/net/minecraft/server/level/WorldGenRegion.java
+++ b/src/main/java/net/minecraft/server/level/WorldGenRegion.java
@@ -249,6 +249,7 @@ public class WorldGenRegion implements WorldGenLevel {
if (iblockdata.isAir()) {
return false;
} else {
+ if (drop) LOGGER.warn("Potential async entity add during worldgen", new Throwable()); // Paper - log when this happens
if (false) { // CraftBukkit - SPIGOT-6833: Do not drop during world generation
BlockEntity tileentity = iblockdata.hasBlockEntity() ? this.getBlockEntity(pos) : null;
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
index 254cdf5efe85583c5ef126d46af7c5246daa97c2..6f3598c12ad8f5d35863669c1f85b5581aa82a60 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftRegionAccessor.java
@@ -402,10 +402,10 @@ public abstract class CraftRegionAccessor implements RegionAccessor {
((ChorusFlowerBlock) Blocks.CHORUS_FLOWER).generatePlant(access, pos, random, 8);
return true;
case CRIMSON_FUNGUS:
- gen = TreeFeatures.CRIMSON_FUNGUS_PLANTED;
+ gen = this.isNormalWorld() ? TreeFeatures.CRIMSON_FUNGUS_PLANTED : TreeFeatures.CRIMSON_FUNGUS; // Paper - if world gen, don't use planted version
break;
case WARPED_FUNGUS:
- gen = TreeFeatures.WARPED_FUNGUS_PLANTED;
+ gen = this.isNormalWorld() ? TreeFeatures.WARPED_FUNGUS_PLANTED : TreeFeatures.WARPED_FUNGUS; // Paper - if world gen, don't use planted version
break;
case AZALEA:
gen = TreeFeatures.AZALEA_TREE;