PaperMC/patches/server/0574-Add-EntityDamageItemEvent.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

89 lines
5.7 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Tue, 22 Dec 2020 13:52:48 -0800
Subject: [PATCH] Add EntityDamageItemEvent
diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
index 7497471649bec04ab8b43dec06b31edd892a5cfb..ad1cb11245108b5cb187b686ed7e6bc769193b52 100644
--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
@@ -646,14 +646,14 @@ public final class ItemStack implements DataComponentHolder {
return (Integer) this.getOrDefault(DataComponents.MAX_DAMAGE, 0);
}
- public void hurtAndBreak(int amount, ServerLevel world, @Nullable ServerPlayer player, Consumer<Item> breakCallback) {
+ public void hurtAndBreak(int amount, ServerLevel world, @Nullable LivingEntity player, Consumer<Item> breakCallback) { // Paper - Add EntityDamageItemEvent
if (this.isDamageableItem()) {
if (player == null || !player.hasInfiniteMaterials()) {
if (amount > 0) {
amount = EnchantmentHelper.processDurabilityChange(world, this, amount);
// CraftBukkit start
- if (player != null) {
- PlayerItemDamageEvent event = new PlayerItemDamageEvent(player.getBukkitEntity(), CraftItemStack.asCraftMirror(this), amount);
+ if (player instanceof ServerPlayer serverPlayer) { // Paper - Add EntityDamageItemEvent
+ PlayerItemDamageEvent event = new PlayerItemDamageEvent(serverPlayer.getBukkitEntity(), CraftItemStack.asCraftMirror(this), amount); // Paper - Add EntityDamageItemEvent
event.getPlayer().getServer().getPluginManager().callEvent(event);
if (amount != event.getDamage() || event.isCancelled()) {
@@ -664,6 +664,14 @@ public final class ItemStack implements DataComponentHolder {
}
amount = event.getDamage();
+ // Paper start - Add EntityDamageItemEvent
+ } else if (player != null) {
+ io.papermc.paper.event.entity.EntityDamageItemEvent event = new io.papermc.paper.event.entity.EntityDamageItemEvent(player.getBukkitLivingEntity(), CraftItemStack.asCraftMirror(this), amount);
+ if (!event.callEvent()) {
+ return;
+ }
+ amount = event.getDamage();
+ // Paper end - Add EntityDamageItemEvent
}
// CraftBukkit end
if (amount <= 0) {
@@ -671,8 +679,8 @@ public final class ItemStack implements DataComponentHolder {
}
}
- if (player != null && amount != 0) {
- CriteriaTriggers.ITEM_DURABILITY_CHANGED.trigger(player, this, this.getDamageValue() + amount);
+ if (player instanceof ServerPlayer serverPlayer && amount != 0) { // Paper - Add EntityDamageItemEvent
+ CriteriaTriggers.ITEM_DURABILITY_CHANGED.trigger(serverPlayer, this, this.getDamageValue() + amount); // Paper - Add EntityDamageItemEvent
}
int j = this.getDamageValue() + amount;
@@ -681,8 +689,8 @@ public final class ItemStack implements DataComponentHolder {
if (j >= this.getMaxDamage()) {
Item item = this.getItem();
// CraftBukkit start - Check for item breaking
- if (this.count == 1) {
- org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerItemBreakEvent(player, this);
+ if (this.count == 1 && player instanceof final ServerPlayer serverPlayer) { // Paper - Add EntityDamageItemEvent
+ org.bukkit.craftbukkit.event.CraftEventFactory.callPlayerItemBreakEvent(serverPlayer, this); // Paper - Add EntityDamageItemEvent
}
// CraftBukkit end
@@ -706,7 +714,7 @@ public final class ItemStack implements DataComponentHolder {
entityplayer = null;
}
- this.hurtAndBreak(amount, worldserver, entityplayer, (item) -> {
+ this.hurtAndBreak(amount, worldserver, entity, (item) -> { // Paper - Add EntityDamageItemEvent
entity.onEquippedItemBroken(item, slot);
});
}
diff --git a/src/main/java/net/minecraft/world/item/enchantment/effects/DamageItem.java b/src/main/java/net/minecraft/world/item/enchantment/effects/DamageItem.java
index 70796eef426eece0bc93a173f54e90645377b502..82ac989ca836e3beef7c3773db0183a7e51780e0 100644
--- a/src/main/java/net/minecraft/world/item/enchantment/effects/DamageItem.java
+++ b/src/main/java/net/minecraft/world/item/enchantment/effects/DamageItem.java
@@ -16,8 +16,8 @@ public record DamageItem(LevelBasedValue amount) implements EnchantmentEntityEff
@Override
public void apply(ServerLevel world, int level, EnchantedItemInUse context, Entity user, Vec3 pos) {
- ServerPlayer serverPlayer2 = context.owner() instanceof ServerPlayer serverPlayer ? serverPlayer : null;
- context.itemStack().hurtAndBreak((int)this.amount.calculate(level), world, serverPlayer2, context.onBreak());
+ // ServerPlayer serverPlayer2 = context.owner() instanceof ServerPlayer serverPlayer ? serverPlayer : null; // Paper - always pass in entity
+ context.itemStack().hurtAndBreak((int)this.amount.calculate(level), world, context.owner(), context.onBreak()); // Paper - always pass in entity
}
@Override