Update to 1.20.2

Very early build, network configuration switching is supported
but not tested (note: changes need to be backported to Paper)

Changes:
 - Supports per player mob caps
 - Adds entity tracker optimisations which are not in Paper
   (and will not be ported to Paper due to plugin conflicts)
 - No longer reverts paper distance map optimisations, as
   those are replaced by the NearbyPlayers class

These changes should bring Folia in-line with Paper's optimisations
at least (probably more given the entity tracker optimisations),
still missing features like world loading / some commands

build.gradle.kts

@@ -4,7 +4,7 @@ plugins {
     java
     `maven-publish`
     id("com.github.johnrengelman.shadow") version "8.1.1" apply false
-    id("io.papermc.paperweight.patcher") version "1.5.5"
+    id("io.papermc.paperweight.patcher") version "1.5.6"
 }
 
 val paperMavenPublicUrl = "https://repo.papermc.io/repository/maven-public/"

gradle.properties

@@ -1,8 +1,8 @@
 group=dev.folia
 
-version=1.20.1-R0.1-SNAPSHOT
-mcVersion=1.20.1
-paperRef=fb06829845db10be0405966f874a16f135f73229
+version=1.20.2-R0.1-SNAPSHOT
+mcVersion=1.20.2
+paperRef=fe54a13b1301312304d9c1e46ad91b039657120b
 
 org.gradle.caching=true
 org.gradle.parallel=true

patches/server/0001-Build-changes.patch

@@ -5,7 +5,7 @@ Subject: [PATCH] Build changes
 
 
 diff --git a/build.gradle.kts b/build.gradle.kts
-index fb98936bb8a5488db75d676c5bcb4060597fbbf8..9ee90bc753e65f9dd532f28ec75cc16bf16486c8 100644
+index 683159586641dd9aa42ae96fa51602469755723f..521ff85fcf10fc85fe706d6fa3778e0569551829 100644
 --- a/build.gradle.kts
 +++ b/build.gradle.kts
 @@ -13,8 +13,12 @@ configurations.named(log4jPlugins.compileClasspathConfigurationName) {
@@ -32,7 +32,7 @@ index fb98936bb8a5488db75d676c5bcb4060597fbbf8..9ee90bc753e65f9dd532f28ec75cc16b
              "Implementation-Vendor" to date, // Paper
              "Specification-Title" to "Bukkit",
              "Specification-Version" to project.version,
-@@ -149,7 +153,7 @@ fun TaskContainer.registerRunTask(
+@@ -156,7 +160,7 @@ fun TaskContainer.registerRunTask(
      name: String,
      block: JavaExec.() -> Unit
  ): TaskProvider<JavaExec> = register<JavaExec>(name) {
@@ -93,10 +93,10 @@ index 9d687da5bdf398bb3f6c84cdf1249a7213d09f2e..e2f704c115fd6e00960bb56bb0779f11
              ).openBufferedStream()) {
                  JsonObject json = new Gson().fromJson(reader, JsonObject.class);
 diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
-index 67ee3a4ca8a6cdeb275653d492a1fea8037c51fb..211408450ab4bf714860a52a9deff63e75ec20d1 100644
+index 97745f0bab8d82d397c6c2a5775aed92bca0a034..a17160766eb15e8d11ddcce23747f8ab1923b676 100644
 --- a/src/main/java/net/minecraft/server/MinecraftServer.java
 +++ b/src/main/java/net/minecraft/server/MinecraftServer.java
-@@ -1692,7 +1692,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
+@@ -1697,7 +1697,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
 
      @DontObfuscate
      public String getServerModName() {
@@ -106,10 +106,10 @@ index 67ee3a4ca8a6cdeb275653d492a1fea8037c51fb..211408450ab4bf714860a52a9deff63e
 
      public SystemReport fillSystemReport(SystemReport details) {
 diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-index ec4b73321205b472f19fa5bd4ad95893020d1340..3cb207d02824af2c688e0ac9ea81860569042d65 100644
+index fcd5096d64edfaf6bce3ecce8c9b9afb84462786..c9fbd5b27d01e440ad858711827698b602d660bd 100644
 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
 +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
-@@ -265,7 +265,7 @@ import javax.annotation.Nullable; // Paper
+@@ -267,7 +267,7 @@ import javax.annotation.Nullable; // Paper
  import javax.annotation.Nonnull; // Paper
 
  public final class CraftServer implements Server {

patches/server/0002-MC-Dev-fixes.patch

@@ -5,7 +5,7 @@ Subject: [PATCH] MC-Dev fixes
 
 
 diff --git a/src/main/java/net/minecraft/world/entity/ai/Brain.java b/src/main/java/net/minecraft/world/entity/ai/Brain.java
-index ef6e968ed2708272eab407a983928382a2f2049c..a2de99709ce14303a309806c683da6b3548659c1 100644
+index dea20f16ac97402f754c8e47d03e9ef38de73190..21e5d1451f90194aa415cf0a183d1a731854f605 100644
 --- a/src/main/java/net/minecraft/world/entity/ai/Brain.java
 +++ b/src/main/java/net/minecraft/world/entity/ai/Brain.java
 @@ -72,15 +72,15 @@ public class Brain<E extends LivingEntity> {

patches/server/0004-Max-pending-logins.patch

@@ -6,30 +6,30 @@ Subject: [PATCH] Max pending logins
 Should help the floodgates on launch
 
 diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
-index 2e96377d628b3a07fb565020074d665f594f32e8..75b1877f8c3e4da3183437f327ef3376fd0a3c21 100644
+index 57649d7fd11bef6395e04c075980e4c34eeffaa8..106b06a1d8fbda3fae7229252e78b9c17793e988 100644
 --- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
 +++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
-@@ -85,7 +85,7 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
-             UUID uniqueId = UUIDUtil.getOrCreatePlayerUUID(this.gameProfile);
+@@ -88,7 +88,7 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener,
              if (this.server.getPlayerList().pushPendingJoin(name, uniqueId, this.connection)) {
-                 this.handleAcceptedLogin();
--            }
-+            } else { --this.tick; } // Folia - max concurrent logins
              // Folia end - region threading - rewrite login process
-         } // Folia - region threading - remove delayed accept
+             this.verifyLoginAndFinishConnectionSetup((GameProfile) Objects.requireNonNull(this.authenticatedProfile));
+-            } // Folia - region threading - rewrite login process
++            } else { --this.tick; } // Folia - region threading - rewrite login process // Folia - max concurrent logins
+         }
 
+         if (this.state == ServerLoginPacketListenerImpl.State.WAITING_FOR_DUPE_DISCONNECT && !this.isPlayerAlreadyInWorld((GameProfile) Objects.requireNonNull(this.authenticatedProfile))) {
 diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
-index 82c7235ad9f4bc4a9f6e018c9905d49790396918..1f70b0810ab992851662fe27c7522bc9eabf5f5f 100644
+index 3f3d3cfa046124197bf7ed8d7f4b651bf8a73416..3ed41fc4c73e418ea11ed11e365423e014c88715 100644
 --- a/src/main/java/net/minecraft/server/players/PlayerList.java
 +++ b/src/main/java/net/minecraft/server/players/PlayerList.java
-@@ -180,6 +180,17 @@ public abstract class PlayerList {
+@@ -173,6 +173,17 @@ public abstract class PlayerList {
              conflictingId = this.connectionById.get(byId);
 
              if (conflictingName == null && conflictingId == null) {
 +                // Folia start - max concurrent login
 +                int loggedInCount = 0;
 +                for (Connection value : this.connectionById.values()) {
-+                    if (value.isPlayerConnected()) {
++                    if (value.getPacketListener() instanceof ServerGamePacketListenerImpl) {
 +                        ++loggedInCount;
 +                    }
 +                }

patches/server/0005-Add-chunk-system-throughput-counters-to-tps.patch

@@ -5,7 +5,7 @@ Subject: [PATCH] Add chunk system throughput counters to /tps
 
 
 diff --git a/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkFullTask.java b/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkFullTask.java
-index 300700477ee34bc22b31315825c0e40f61070cd5..0b78d1eb90500e0123b7281d722805dc65d551d0 100644
+index 679ed4d53269e1113035b462cf74ab16a231e22e..8a48238fac0949cfddcdd9ccf179d16befe9c4d4 100644
 --- a/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkFullTask.java
 +++ b/src/main/java/io/papermc/paper/chunk/system/scheduling/ChunkFullTask.java
 @@ -22,6 +22,9 @@ public final class ChunkFullTask extends ChunkProgressionTask implements Runnabl