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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 13:35:58 -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
diff --git a/src/main/java/org/bukkit/entity/LivingEntity.java b/src/main/java/org/bukkit/entity/LivingEntity.java
index b1583317a0344809431f81f1cd9378f44343b04d..d1da5bb61633871e8fe778bd83b5a5eac20aacc7 100644
--- a/src/main/java/org/bukkit/entity/LivingEntity.java
+++ b/src/main/java/org/bukkit/entity/LivingEntity.java
@@ -1197,5 +1197,52 @@ public interface LivingEntity extends Attributable, Damageable, ProjectileSource
* @param directionZ The relative z position of the knockback source direction
*/
void knockback(double strength, double directionX, double directionZ);
+
+ /**
+ * Notifies all clients tracking this entity that the item in
+ * the slot of this entity broke.
+ * <p>
+ * NOTE: this does not mutate any entity state
+ *
+ * @param slot the slot
+ */
+ void broadcastSlotBreak(org.bukkit.inventory.@NotNull EquipmentSlot slot);
+
+ /**
+ * Notifies specified players that the item in the slot
+ * of this entity broke.
+ * <p>
+ * NOTE: this does not mutate any entity state
+ *
+ * @param slot the slot
+ * @param players the players to notify
+ */
+ void broadcastSlotBreak(org.bukkit.inventory.@NotNull EquipmentSlot slot, @NotNull Collection<Player> players);
+
+ /**
+ * Damages the itemstack in this slot by the specified amount.
+ * <p>
+ * This runs all logic associated with damaging an itemstack like
+ * gamemode and enchantment checks, events, stat changes, and advancement
+ * triggers.
+ *
+ * @param stack the itemstack to damage
+ * @param amount the amount of damage to do
+ * @return the damaged itemstack, or an empty stack if it broke. There are no
+ * guarantees the returned itemstack is the same instance
+ */
+ @NotNull ItemStack damageItemStack(@NotNull ItemStack stack, int amount);
+
+ /**
+ * Damages the itemstack in this slot by the specified amount.
+ * <p>
+ * This runs all logic associated with damaging an itemstack like
+ * gamemode and enchantment checks, events, stat changes, advancement
+ * triggers, and notifying clients to play break animations.
+ *
+ * @param slot the slot of the stack to damage
+ * @param amount the amount of damage to do
+ */
+ void damageItemStack(org.bukkit.inventory.@NotNull EquipmentSlot slot, int amount);
// Paper end
}
diff --git a/src/main/java/org/bukkit/inventory/ItemStack.java b/src/main/java/org/bukkit/inventory/ItemStack.java
index f236f9bfa4d43dcbad5919abef3620fcd0696880..845037909658884167136955a02b99af0040fa9c 100644
--- a/src/main/java/org/bukkit/inventory/ItemStack.java
+++ b/src/main/java/org/bukkit/inventory/ItemStack.java
@@ -982,5 +982,19 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat
public boolean canRepair(@NotNull ItemStack toBeRepaired) {
return Bukkit.getUnsafe().isValidRepairItemStack(toBeRepaired, this);
}
+
+ /**
+ * Damages this itemstack by the specified amount. This
+ * runs all logic associated with damaging an itemstack like
+ * events and stat changes.
+ *
+ * @param amount the amount of damage to do
+ * @param livingEntity the entity related to the damage
+ * @return the damaged itemstack or an empty one if it broke. May return the same instance of ItemStack
+ * @see org.bukkit.entity.LivingEntity#damageItemStack(EquipmentSlot, int) to damage itemstacks in equipment slots
+ */
+ public @NotNull ItemStack damage(int amount, @NotNull org.bukkit.entity.LivingEntity livingEntity) {
+ return livingEntity.damageItemStack(this, amount);
+ }
// Paper end
}
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