PaperMC/patches/server/0934-Add-BlockBreakProgressUpdateEvent.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

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1.5 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Badbird5907 <50347938+Badbird5907@users.noreply.github.com>
Date: Mon, 4 Mar 2024 22:18:28 -0500
Subject: [PATCH] Add BlockBreakProgressUpdateEvent
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 34ece37aee68e4d8eeaa919e8bd489a672756049..dcd024afef50c90974723632c879258fb1dda073 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1320,6 +1320,17 @@ public class ServerLevel extends Level implements WorldGenLevel {
if (entity instanceof Player) entityhuman = (Player) entity;
// CraftBukkit end
+ // Paper start - Add BlockBreakProgressUpdateEvent
+ // If a plugin is using this method to send destroy packets for a client-side only entity id, no block progress occurred on the server.
+ // Hence, do not call the event.
+ if (entity != null) {
+ float progressFloat = Mth.clamp(progress, 0, 10) / 10.0f;
+ org.bukkit.craftbukkit.block.CraftBlock bukkitBlock = org.bukkit.craftbukkit.block.CraftBlock.at(this, pos);
+ new io.papermc.paper.event.block.BlockBreakProgressUpdateEvent(bukkitBlock, progressFloat, entity.getBukkitEntity())
+ .callEvent();
+ }
+ // Paper end - Add BlockBreakProgressUpdateEvent
+
while (iterator.hasNext()) {
ServerPlayer entityplayer = (ServerPlayer) iterator.next();