From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Noah van der Aa <ndvdaa@gmail.com>
Date: Fri, 7 Jan 2022 11:58:26 +0100
Subject: [PATCH] Don't tick markers

Fixes https://github.com/PaperMC/Paper/issues/7276 and https://github.com/PaperMC/Paper/issues/8118
by using a config option that, when set to false, does not add markers to the entity
tick list at all and ignores them in Spigot's activation range checks. The entity tick
list is only used in the tick and tickPassenger methods, so we can safely not add the
markers to it. When the config option is set to true, markers are ticked as normal.

diff --git a/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java b/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java
index 9d9d133e0d973ecda1ef1efc872a51ee10463fd1..f671b74e4179fc29bc600b52e456ba9f78d8bbd6 100644
--- a/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java
+++ b/src/main/java/io/papermc/paper/command/subcommands/EntityCommand.java
@@ -109,7 +109,7 @@ public final class EntityCommand implements PaperSubcommand {
                 ChunkPos chunk = e.chunkPosition();
                 info.left++;
                 info.right.put(chunk, info.right.getOrDefault(chunk, 0) + 1);
-                if (!world.isPositionEntityTicking(e.blockPosition())) {
+                if (!world.isPositionEntityTicking(e.blockPosition()) || (e instanceof net.minecraft.world.entity.Marker && !world.paperConfig().entities.markers.tick)) { // Paper - Configurable marker ticking
                     nonEntityTicking.merge(key, 1, Integer::sum);
                 }
             });
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 8ca9a5d274a28f5feab492a446afea6b187b5d6a..ee0459e37b817648e37b1ea84a3edf7c52d00855 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -2234,6 +2234,7 @@ public class ServerLevel extends Level implements ServerEntityGetter, WorldGenLe
         }
 
         public void onTickingStart(Entity entity) {
+            if (entity instanceof net.minecraft.world.entity.Marker && !paperConfig().entities.markers.tick) return; // Paper - Configurable marker ticking
             ServerLevel.this.entityTickList.add(entity);
         }