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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Lulu13022002 <41980282+Lulu13022002@users.noreply.github.com>
Date: Sat, 22 Jun 2024 21:11:58 +0200
Subject: [PATCH] Leashable API
diff --git a/src/main/java/io/papermc/paper/entity/Leashable.java b/src/main/java/io/papermc/paper/entity/Leashable.java
new file mode 100644
index 0000000000000000000000000000000000000000..7e687535d1a622ddf25e3ece387dbfd5b7a49e83
--- /dev/null
+++ b/src/main/java/io/papermc/paper/entity/Leashable.java
@@ -0,0 +1,37 @@
+package io.papermc.paper.entity;
+
+import org.bukkit.entity.Entity;
+import org.jspecify.annotations.NullMarked;
+import org.jspecify.annotations.Nullable;
+
+/**
+ * Represents an entity that can be leashed.
+ */
+@NullMarked
+public interface Leashable extends Entity {
+
+ /**
+ * Returns whether the entity is currently leashed.
+ *
+ * @return whether the entity is leashed
+ */
+ boolean isLeashed();
+
+ /**
+ * Gets the entity that is currently leading this entity.
+ *
+ * @return the entity holding the leash
+ * @throws IllegalStateException if not currently leashed
+ */
+ Entity getLeashHolder() throws IllegalStateException;
+
+ /**
+ * Sets the leash on this entity to be held by the supplied entity.
+ * <p>
+ * This method has no effect on players.
+ *
+ * @param holder the entity to leash this entity to, or {@code null} to unleash
+ * @return whether the operation was successful
+ */
+ boolean setLeashHolder(@Nullable Entity holder);
+}
diff --git a/src/main/java/org/bukkit/entity/Boat.java b/src/main/java/org/bukkit/entity/Boat.java
index 7076870c1abfa0edef33e00c39514aa413920f59..574574dc4f54a4ce32e7c97f2fbeb92a4991d353 100644
--- a/src/main/java/org/bukkit/entity/Boat.java
+++ b/src/main/java/org/bukkit/entity/Boat.java
@@ -7,7 +7,7 @@ import org.jetbrains.annotations.NotNull;
/**
* Represents a boat entity.
*/
-public interface Boat extends Vehicle {
+public interface Boat extends Vehicle, io.papermc.paper.entity.Leashable { // Paper - Leashable API
/**
* Gets the wood type of the boat.
diff --git a/src/main/java/org/bukkit/entity/Mob.java b/src/main/java/org/bukkit/entity/Mob.java
index 256e5645bcfa76e7ede58ae365e69b4a4bed6204..9a10262a952e330f42187d6e4edab5a225bfba62 100644
--- a/src/main/java/org/bukkit/entity/Mob.java
+++ b/src/main/java/org/bukkit/entity/Mob.java
@@ -8,7 +8,7 @@ import org.jetbrains.annotations.Nullable;
/**
* Represents a Mob. Mobs are living entities with simple AI.
*/
-public interface Mob extends LivingEntity, Lootable {
+public interface Mob extends LivingEntity, Lootable, io.papermc.paper.entity.Leashable { // Paper - Leashable API
// Paper start
@Override
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