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Paper-Old/patches/server/0392-Brand-support.patch
Bjarne Koll c5a10665b8
Remove wall-time / unused skip tick protection (#11412)
Spigot still maintains some partial implementation of "tick skipping", a
practice in which the MinecraftServer.currentTick field is updated not
by an increment of one per actual tick, but instead set to
System.currentTimeMillis() / 50. This behaviour means that the tracked
tick may "skip" a tick value in case a previous tick took more than the
expected 50ms.

To compensate for this in important paths, spigot/craftbukkit
implements "wall-time". Instead of incrementing/decrementing ticks on
block entities/entities by one for each call to their tick() method,
they instead increment/decrement important values, like
an ItemEntity's age or pickupDelay, by the difference of
`currentTick - lastTick`, where `lastTick` is the value of
`currentTick` during the last tick() call.

These "fixes" however do not play nicely with minecraft's simulation
distance as entities/block entities implementing the above behaviour
would "catch up" their values when moving from a non-ticking chunk to a
ticking one as their `lastTick` value remains stuck on the last tick in
a ticking chunk and hence lead to a large "catch up" once ticked again.

Paper completely removes the "tick skipping" behaviour (See patch
"Further-improve-server-tick-loop"), making the above precautions
completely unnecessary, which also rids paper of the previous described
incompatibility with non-ticking chunks.
2024-09-19 16:36:07 +02:00

77 Zeilen
4.8 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: DigitalRegent <misterwener@gmail.com>
Date: Sat, 11 Apr 2020 13:10:58 +0200
Subject: [PATCH] Brand support
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index e6e7dc17d1196a8211a565355f34b5dcfd478852..45181bc9c422507682d479e4d43177ecd3253971 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -294,6 +294,7 @@ public class ServerPlayer extends net.minecraft.world.entity.player.Player {
// CraftBukkit end
public boolean isRealPlayer; // Paper
public com.destroystokyo.paper.event.entity.PlayerNaturallySpawnCreaturesEvent playerNaturallySpawnedEvent; // Paper - PlayerNaturallySpawnCreaturesEvent
+ public @Nullable String clientBrandName = null; // Paper - Brand support
public ServerPlayer(MinecraftServer server, ServerLevel world, GameProfile profile, ClientInformation clientOptions) {
super(world, world.getSharedSpawnPos(), world.getSharedSpawnAngle(), profile);
diff --git a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
index 4f62abfe62c951b7a1df36ece34747100d6a4ff7..48085b2e7197dc44e76b812bdd514af729e21e83 100644
--- a/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerCommonPacketListenerImpl.java
@@ -83,6 +83,7 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
private volatile boolean suspendFlushingOnServerThread = false;
public final java.util.Map<java.util.UUID, net.kyori.adventure.resource.ResourcePackCallback> packCallbacks = new java.util.concurrent.ConcurrentHashMap<>(); // Paper - adventure resource pack callbacks
private static final long KEEPALIVE_LIMIT = Long.getLong("paper.playerconnection.keepalive", 30) * 1000; // Paper - provide property to set keepalive limit
+ protected static final ResourceLocation MINECRAFT_BRAND = ResourceLocation.withDefaultNamespace("brand"); // Paper - Brand support
public ServerCommonPacketListenerImpl(MinecraftServer minecraftserver, Connection networkmanager, CommonListenerCookie commonlistenercookie, ServerPlayer player) { // CraftBukkit
this.server = minecraftserver;
@@ -148,6 +149,11 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
@Override
public void handleCustomPayload(ServerboundCustomPayloadPacket packet) {
+ // Paper start - Brand support
+ if (packet.payload() instanceof net.minecraft.network.protocol.common.custom.BrandPayload brandPayload) {
+ this.player.clientBrandName = brandPayload.brand();
+ }
+ // Paper end - Brand support
if (!(packet.payload() instanceof DiscardedPayload)) {
return;
}
@@ -179,6 +185,15 @@ public abstract class ServerCommonPacketListenerImpl implements ServerCommonPack
try {
byte[] data = new byte[payload.readableBytes()];
payload.readBytes(data);
+ // Paper start - Brand support; Retain this incase upstream decides to 'break' the new mechanism in favour of backwards compat...
+ if (identifier.equals(MINECRAFT_BRAND)) {
+ try {
+ this.player.clientBrandName = new net.minecraft.network.FriendlyByteBuf(io.netty.buffer.Unpooled.copiedBuffer(data)).readUtf(256);
+ } catch (StringIndexOutOfBoundsException ex) {
+ this.player.clientBrandName = "illegal";
+ }
+ }
+ // Paper end - Brand support
this.cserver.getMessenger().dispatchIncomingMessage(this.player.getBukkitEntity(), identifier.toString(), data);
} catch (Exception ex) {
ServerGamePacketListenerImpl.LOGGER.error("Couldn\'t dispatch custom payload", ex);
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
index 068ff2c228308ec87fcc6d1352bd63b91bd34a93..854533854dfba24b59a15265ac759331e3ddfc74 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftPlayer.java
@@ -3139,6 +3139,13 @@ public class CraftPlayer extends CraftHumanEntity implements Player {
// Paper end
};
+ // Paper start - brand support
+ @Override
+ public String getClientBrandName() {
+ return getHandle().clientBrandName;
+ }
+ // Paper end
+
public Player.Spigot spigot()
{
return this.spigot;