Paper/patches/server/0481-Expand-EntityUnleashEvent.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

159 lines
11 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Nassim Jahnke <nassim@njahnke.dev>
Date: Fri, 29 Jan 2021 15:13:11 +0100
Subject: [PATCH] Expand EntityUnleashEvent
diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 7d131f3b3f5739468aa3115e97ed28b6bfeca33d..da184893d617311a43f9ce176a965f8417a2876d 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -2574,12 +2574,15 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
if (leashable.getLeashHolder() == player) {
if (!this.level().isClientSide()) {
// CraftBukkit start - fire PlayerUnleashEntityEvent
- if (CraftEventFactory.callPlayerUnleashEntityEvent(this, player, hand).isCancelled()) {
+ // Paper start - Expand EntityUnleashEvent
+ org.bukkit.event.player.PlayerUnleashEntityEvent event = CraftEventFactory.callPlayerUnleashEntityEvent(this, player, hand, !player.hasInfiniteMaterials());
+ if (event.isCancelled()) {
+ // Paper end - Expand EntityUnleashEvent
((ServerPlayer) player).connection.send(new ClientboundSetEntityLinkPacket(this, leashable.getLeashHolder()));
return InteractionResult.PASS;
}
// CraftBukkit end
- leashable.dropLeash(true, !player.hasInfiniteMaterials());
+ leashable.dropLeash(true, event.isDropLeash()); // Paper - Expand EntityUnleashEvent
this.gameEvent(GameEvent.ENTITY_INTERACT, player);
}
@@ -3449,9 +3452,12 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
protected void removeAfterChangingDimensions() {
this.setRemoved(Entity.RemovalReason.CHANGED_DIMENSION, null); // CraftBukkit - add Bukkit remove cause
- if (this instanceof Leashable leashable) {
- this.level().getCraftServer().getPluginManager().callEvent(new EntityUnleashEvent(this.getBukkitEntity(), UnleashReason.UNKNOWN)); // CraftBukkit
- leashable.dropLeash(true, false);
+ if (this instanceof Leashable leashable && leashable.isLeashed()) { // Paper - only call if it is leashed
+ // Paper start - Expand EntityUnleashEvent
+ final EntityUnleashEvent event = new EntityUnleashEvent(this.getBukkitEntity(), UnleashReason.UNKNOWN, false); // CraftBukkit
+ event.callEvent();
+ leashable.dropLeash(true, event.isDropLeash());
+ // Paper end - Expand EntityUnleashEvent
}
}
diff --git a/src/main/java/net/minecraft/world/entity/Leashable.java b/src/main/java/net/minecraft/world/entity/Leashable.java
index 5c51dd5229689cba459655d488aee59bd159a414..e7535f15be3cc1537aafee53779ccfb4f21d1f38 100644
--- a/src/main/java/net/minecraft/world/entity/Leashable.java
+++ b/src/main/java/net/minecraft/world/entity/Leashable.java
@@ -166,8 +166,11 @@ public interface Leashable {
if (leashable_a != null && leashable_a.leashHolder != null) {
if (!entity.isAlive() || !leashable_a.leashHolder.isAlive()) {
- entity.level().getCraftServer().getPluginManager().callEvent(new EntityUnleashEvent(entity.getBukkitEntity(), (!entity.isAlive()) ? UnleashReason.PLAYER_UNLEASH : UnleashReason.HOLDER_GONE)); // CraftBukkit
- Leashable.dropLeash(entity, true, !entity.pluginRemoved); // CraftBukkit - SPIGOT-7487: Don't drop leash, when the holder was removed by a plugin
+ // Paper start - Expand EntityUnleashEvent
+ final EntityUnleashEvent event = new EntityUnleashEvent(entity.getBukkitEntity(), (!entity.isAlive()) ? UnleashReason.PLAYER_UNLEASH : UnleashReason.HOLDER_GONE, !entity.pluginRemoved);
+ event.callEvent();
+ Leashable.dropLeash(entity, true, event.isDropLeash()); // CraftBukkit - SPIGOT-7487: Don't drop leash, when the holder was removed by a plugin
+ // Paper end - Expand EntityUnleashEvent
}
Entity entity1 = ((Leashable) entity).getLeashHolder();
@@ -198,11 +201,16 @@ public interface Leashable {
default void leashTooFarBehaviour() {
// CraftBukkit start
+ boolean dropLeash = true; // Paper
if (this instanceof Entity entity) {
- entity.level().getCraftServer().getPluginManager().callEvent(new EntityUnleashEvent(entity.getBukkitEntity(), EntityUnleashEvent.UnleashReason.DISTANCE));
+ // Paper start - Expand EntityUnleashEvent
+ final EntityUnleashEvent event = new EntityUnleashEvent(entity.getBukkitEntity(), EntityUnleashEvent.UnleashReason.DISTANCE, true);
+ if (!event.callEvent()) return;
+ dropLeash = event.isDropLeash();
+ // Paper end - Expand EntityUnleashEvent
}
// CraftBukkit end
- this.dropLeash(true, true);
+ this.dropLeash(true, dropLeash); // Paper
}
default void closeRangeLeashBehaviour(Entity entity) {}
diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
index b46572f6e3b52f498b395d3b8c5def2aa799ff03..e87360e21e6eb7b0161c34a3ac6cb83d18bcd1e8 100644
--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
@@ -1621,8 +1621,11 @@ public abstract class Mob extends LivingEntity implements EquipmentUser, Leashab
boolean flag1 = super.startRiding(entity, force);
if (flag1 && this.isLeashed()) {
- this.level().getCraftServer().getPluginManager().callEvent(new EntityUnleashEvent(this.getBukkitEntity(), UnleashReason.UNKNOWN)); // CraftBukkit
- this.dropLeash(true, true);
+ // Paper start - Expand EntityUnleashEvent
+ EntityUnleashEvent event = new EntityUnleashEvent(this.getBukkitEntity(), EntityUnleashEvent.UnleashReason.UNKNOWN, true);
+ if (!event.callEvent()) { return flag1; }
+ this.dropLeash(true, event.isDropLeash());
+ // Paper end - Expand EntityUnleashEvent
}
return flag1;
diff --git a/src/main/java/net/minecraft/world/entity/TamableAnimal.java b/src/main/java/net/minecraft/world/entity/TamableAnimal.java
index bf2c9134c7d9d5926add36b55e3cfea79e8c8243..7b7bc1a205dfacbe5709011b6b6799e75af9e4cc 100644
--- a/src/main/java/net/minecraft/world/entity/TamableAnimal.java
+++ b/src/main/java/net/minecraft/world/entity/TamableAnimal.java
@@ -98,7 +98,11 @@ public abstract class TamableAnimal extends Animal implements OwnableEntity {
public boolean handleLeashAtDistance(Entity leashHolder, float distance) {
if (this.isInSittingPose()) {
if (distance > (float) this.level().paperConfig().misc.maxLeashDistance.or(Leashable.LEASH_TOO_FAR_DIST)) { // Paper - Configurable max leash distance
- this.dropLeash(true, true);
+ // Paper start - Expand EntityUnleashEvent
+ org.bukkit.event.entity.EntityUnleashEvent event = new org.bukkit.event.entity.EntityUnleashEvent(this.getBukkitEntity(), org.bukkit.event.entity.EntityUnleashEvent.UnleashReason.DISTANCE, true);
+ if (!event.callEvent()) return false;
+ this.dropLeash(true, event.isDropLeash());
+ // Paper end - Expand EntityUnleashEvent
}
return false;
diff --git a/src/main/java/net/minecraft/world/entity/decoration/LeashFenceKnotEntity.java b/src/main/java/net/minecraft/world/entity/decoration/LeashFenceKnotEntity.java
index 3c0af74ed65610b1d5e3b72fdcf28c5a3423f0da..01173fc7177d78588978e087e63efda0b0527c2f 100644
--- a/src/main/java/net/minecraft/world/entity/decoration/LeashFenceKnotEntity.java
+++ b/src/main/java/net/minecraft/world/entity/decoration/LeashFenceKnotEntity.java
@@ -118,13 +118,18 @@ public class LeashFenceKnotEntity extends BlockAttachedEntity {
if (leashable1.isLeashed() && leashable1.getLeashHolder() == this) {
// CraftBukkit start
+ boolean dropLeash = !player.hasInfiniteMaterials();
if (leashable1 instanceof Entity leashed) {
- if (CraftEventFactory.callPlayerUnleashEntityEvent(leashed, player, hand).isCancelled()) {
+ // Paper start - Expand EntityUnleashEvent
+ org.bukkit.event.player.PlayerUnleashEntityEvent event = CraftEventFactory.callPlayerUnleashEntityEvent(leashed, player, hand, dropLeash);
+ dropLeash = event.isDropLeash();
+ if (event.isCancelled()) {
+ // Paper end - Expand EntityUnleashEvent
die = false;
continue;
}
}
- leashable1.dropLeash(true, !player.getAbilities().instabuild); // false -> survival mode boolean
+ leashable1.dropLeash(true, dropLeash); // false -> survival mode boolean // Paper - Expand EntityUnleashEvent
// CraftBukkit end
flag1 = true;
}
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 251b605396b77b0c449972c1da75978f57587e1a..c48a9026c4db2005b67c5f70e9e1fa95b7820bc0 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -1598,8 +1598,10 @@ public class CraftEventFactory {
Bukkit.getPluginManager().callEvent(new PlayerRecipeBookSettingsChangeEvent(player.getBukkitEntity(), bukkitType, open, filter));
}
- public static PlayerUnleashEntityEvent callPlayerUnleashEntityEvent(Entity entity, net.minecraft.world.entity.player.Player player, InteractionHand enumhand) {
- PlayerUnleashEntityEvent event = new PlayerUnleashEntityEvent(entity.getBukkitEntity(), (Player) player.getBukkitEntity(), CraftEquipmentSlot.getHand(enumhand));
+ // Paper start - Expand EntityUnleashEvent
+ public static PlayerUnleashEntityEvent callPlayerUnleashEntityEvent(Entity entity, net.minecraft.world.entity.player.Player player, InteractionHand enumhand, boolean dropLeash) {
+ PlayerUnleashEntityEvent event = new PlayerUnleashEntityEvent(entity.getBukkitEntity(), (Player) player.getBukkitEntity(), CraftEquipmentSlot.getHand(enumhand), dropLeash);
+ // Paper end - Expand EntityUnleashEvent
entity.level().getCraftServer().getPluginManager().callEvent(event);
return event;
}