From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: wangxyper <wangxyper@163.com>
Date: Thu, 12 Jan 2023 13:57:52 +0800
Subject: [PATCH] Hearse: Fix some concurrent problems in Entity.java

Original license: MIT
Original project: https://github.com/NaturalCodeClub/HearseRewrite

diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index f33476a35706d7a236fe3bb178d166d568c07674..483c19ac24b074cbdb924d684c0892ddc546af3e 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -24,6 +24,8 @@ import java.util.function.BiConsumer;
 import java.util.function.Predicate;
 import java.util.stream.Stream;
 import javax.annotation.Nullable;
+
+import it.unimi.dsi.fastutil.objects.Object2DoubleMaps;
 import net.minecraft.BlockUtil;
 import net.minecraft.CrashReport;
 import net.minecraft.CrashReportCategory;
@@ -511,14 +513,14 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
         this.nextStep = 1.0F;
         this.random = SHARED_RANDOM; // Paper
         this.remainingFireTicks = -this.getFireImmuneTicks();
-        this.fluidHeight = new Object2DoubleArrayMap(2);
-        this.fluidOnEyes = new HashSet();
+        this.fluidHeight = Object2DoubleMaps.synchronize(new Object2DoubleArrayMap(2));
+        this.fluidOnEyes = Sets.newConcurrentHashSet();
         this.firstTick = true;
         this.levelCallback = EntityInLevelCallback.NULL;
         this.packetPositionCodec = new VecDeltaCodec();
         this.uuid = Mth.createInsecureUUID(this.random);
         this.stringUUID = this.uuid.toString();
-        this.tags = Sets.newHashSet();
+        this.tags = Sets.newConcurrentHashSet();
         this.pistonDeltas = new double[]{0.0D, 0.0D, 0.0D};
         this.feetBlockState = null;
         this.type = type;