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Paper/patches/server/0761-ItemStack-damage-API.patch
Spottedleaf 8c5b837e05 Rework async chunk api implementation 
Firstly, the old methods all routed to the CompletableFuture method.
However, the CF method could not guarantee that if the caller
was off-main that the future would be "completed" on-main. Since
the callback methods used the CF one, this meant that the callback
methods did not guarantee that the callbacks were to be called on
the main thread.

Now, all methods route to getChunkAtAsync(x, z, gen, urgent, cb)
so that the methods with the callback are guaranteed to invoke
the callback on the main thread. The CF behavior remains unchanged;
it may still appear to complete on main if invoked off-main.

Secondly, remove the scheduleOnMain invocation in the async
chunk completion. This unnecessarily delays the callback
by 1 tick.

Thirdly, add getChunksAtAsync(minX, minZ, maxX, maxZ, ...) which
will load chunks within an area. This method is provided as a helper
as keeping all chunks loaded within an area can be complicated to
implement for plugins (due to the lacking ticket API), and is
already implemented internally anyways.

Fourthly, remove the ticket addition that occured with getChunkAt
and getChunkAtAsync. The ticket addition may delay the unloading
of the chunk unnecessarily. It also fixes a very rare timing bug
where the future/callback would be completed after the chunk
unloads.
2024-11-18 23:00:59 -08:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 8 May 2022 13:35:45 -0700
Subject: [PATCH] ItemStack damage API
Adds methods notify clients about item breaks and
to simulate damage done to an itemstack and all
the logic associated with damaging them
== AT ==
public net.minecraft.world.entity.LivingEntity entityEventForEquipmentBreak(Lnet/minecraft/world/entity/EquipmentSlot;)B
diff --git a/src/main/java/net/minecraft/world/item/ItemStack.java b/src/main/java/net/minecraft/world/item/ItemStack.java
index bcb3a45166e5dd75dd727adf92304b3a75399c8d..90a55f00c36903d52630c51bf69322973a2b5274 100644
--- a/src/main/java/net/minecraft/world/item/ItemStack.java
+++ b/src/main/java/net/minecraft/world/item/ItemStack.java
@@ -693,8 +693,13 @@ public final class ItemStack implements DataComponentHolder {
}
public void hurtAndBreak(int amount, ServerLevel world, @Nullable LivingEntity player, Consumer<Item> breakCallback) { // Paper - Add EntityDamageItemEvent
+ // Paper start - add force boolean overload
+ this.hurtAndBreak(amount, world, player, breakCallback, false);
+ }
+ public void hurtAndBreak(int amount, ServerLevel world, @Nullable LivingEntity player, Consumer<Item> breakCallback, boolean force) { // Paper - Add EntityDamageItemEvent
+ // Paper end
int originalDamage = amount; // Paper - Expand PlayerItemDamageEvent
- int j = this.processDurabilityChange(amount, world, player);
+ int j = this.processDurabilityChange(amount, world, player, force); // Paper
// CraftBukkit start
if (player instanceof final ServerPlayer serverPlayer) { // Paper - Add EntityDamageItemEvent
PlayerItemDamageEvent event = new PlayerItemDamageEvent(serverPlayer.getBukkitEntity(), CraftItemStack.asCraftMirror(this), j, originalDamage); // Paper - Add EntityDamageItemEvent
@@ -726,7 +731,12 @@ public final class ItemStack implements DataComponentHolder {
}
private int processDurabilityChange(int baseDamage, ServerLevel world, @Nullable LivingEntity player) { // Paper - Add EntityDamageItemEvent
- return !this.isDamageableItem() ? 0 : (player instanceof ServerPlayer && player.hasInfiniteMaterials() ? 0 : (baseDamage > 0 ? EnchantmentHelper.processDurabilityChange(world, this, baseDamage) : baseDamage)); // Paper - Add EntityDamageItemEvent
+ // Paper start - itemstack damage api
+ return processDurabilityChange(baseDamage, world, player, false);
+ }
+ private int processDurabilityChange(int baseDamage, ServerLevel world, @Nullable LivingEntity player, boolean force) {
+ return !this.isDamageableItem() ? 0 : (player instanceof ServerPlayer && player.hasInfiniteMaterials() && !force ? 0 : (baseDamage > 0 ? EnchantmentHelper.processDurabilityChange(world, this, baseDamage) : baseDamage)); // Paper - Add EntityDamageItemEvent
+ // Paper end - itemstack damage api
}
private void applyDamage(int damage, @Nullable LivingEntity player, Consumer<Item> breakCallback) { // Paper - Add EntityDamageItemEvent
@@ -766,6 +776,11 @@ public final class ItemStack implements DataComponentHolder {
}
public void hurtAndBreak(int amount, LivingEntity entity, EquipmentSlot slot) {
+ // Paper start - add param to skip infinite mats check
+ this.hurtAndBreak(amount, entity, slot, false);
+ }
+ public void hurtAndBreak(int amount, LivingEntity entity, EquipmentSlot slot, boolean force) {
+ // Paper end - add param to skip infinite mats check
Level world = entity.level();
if (world instanceof ServerLevel worldserver) {
@@ -778,8 +793,8 @@ public final class ItemStack implements DataComponentHolder {
}
this.hurtAndBreak(amount, worldserver, entity, (item) -> { // Paper - Add EntityDamageItemEvent
- entity.onEquippedItemBroken(item, slot);
- });
+ if (slot != null) entity.onEquippedItemBroken(item, slot); // Paper - itemstack damage API - do not process entity related callbacks when damaging from API
+ }, force); // Paper - itemstack damage API
}
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 4fa19ddb1414282020e118eea298d57d2bf42754..1ceaa081231a617bd87331b308c24d9c7a8dcf2b 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -1154,4 +1154,48 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
this.getHandle().knockback(strength, directionX, directionZ);
};
// Paper end - knockback API
+
+ // Paper start - ItemStack damage API
+ public void broadcastSlotBreak(final org.bukkit.inventory.EquipmentSlot slot) {
+ this.getHandle().level().broadcastEntityEvent(this.getHandle(), net.minecraft.world.entity.LivingEntity.entityEventForEquipmentBreak(org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot)));
+ }
+
+ @Override
+ public void broadcastSlotBreak(final org.bukkit.inventory.EquipmentSlot slot, final Collection<org.bukkit.entity.Player> players) {
+ if (players.isEmpty()) {
+ return;
+ }
+ final net.minecraft.network.protocol.game.ClientboundEntityEventPacket packet = new net.minecraft.network.protocol.game.ClientboundEntityEventPacket(
+ this.getHandle(),
+ net.minecraft.world.entity.LivingEntity.entityEventForEquipmentBreak(org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot))
+ );
+ players.forEach(player -> ((CraftPlayer) player).getHandle().connection.send(packet));
+ }
+
+ @Override
+ public ItemStack damageItemStack(ItemStack stack, final int amount) {
+ final net.minecraft.world.item.ItemStack nmsStack;
+ if (stack instanceof final CraftItemStack craftItemStack) {
+ if (craftItemStack.handle == null || craftItemStack.handle.isEmpty()) {
+ return stack;
+ }
+ nmsStack = craftItemStack.handle;
+ } else {
+ nmsStack = CraftItemStack.asNMSCopy(stack);
+ stack = CraftItemStack.asCraftMirror(nmsStack); // mirror to capture changes in hurt logic & events
+ }
+ this.damageItemStack0(nmsStack, amount, null);
+ return stack;
+ }
+
+ @Override
+ public void damageItemStack(final org.bukkit.inventory.EquipmentSlot slot, final int amount) {
+ final net.minecraft.world.entity.EquipmentSlot nmsSlot = org.bukkit.craftbukkit.CraftEquipmentSlot.getNMS(slot);
+ this.damageItemStack0(this.getHandle().getItemBySlot(nmsSlot), amount, nmsSlot);
+ }
+
+ private void damageItemStack0(final net.minecraft.world.item.ItemStack nmsStack, final int amount, final net.minecraft.world.entity.EquipmentSlot slot) {
+ nmsStack.hurtAndBreak(amount, this.getHandle(), slot, true);
+ }
+ // Paper end - ItemStack damage API
}
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