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Make EntityUnleashEvent cancellable (#4993)

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Jake Potrebic 2021-08-13 11:15:43 -07:00 committed by GitHub
parent e942509e73
commit ce43ce8265
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 90 additions and 0 deletions
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49
patches/api/0329-Make-EntityUnleashEvent-cancellable.patch Normal file
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@ -0,0 +1,49 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 3 Jan 2021 21:25:39 -0800
Subject: [PATCH] Make EntityUnleashEvent cancellable
diff --git a/src/main/java/org/bukkit/event/entity/EntityUnleashEvent.java b/src/main/java/org/bukkit/event/entity/EntityUnleashEvent.java
index e0e068799a1868c8e561869015f41f553ef4fbdb..95248d0f5cf9b62d31a4883955b9088a7fc8a3b3 100644
--- a/src/main/java/org/bukkit/event/entity/EntityUnleashEvent.java
+++ b/src/main/java/org/bukkit/event/entity/EntityUnleashEvent.java
@@ -6,11 +6,20 @@ import org.jetbrains.annotations.NotNull;
/**
* Called immediately prior to an entity being unleashed.
+ * <p>
+ * Cancelling this event when either:
+ * <ul>
+ * <li>the leashed entity dies,</li>
+ * <li>the entity changes dimension, or</li>
+ * <li>the client has disconnected the leash</li>
+ * </ul>
+ * will have no effect.
*/
-public class EntityUnleashEvent extends EntityEvent {
+public class EntityUnleashEvent extends EntityEvent implements org.bukkit.event.Cancellable { // Paper
private static final HandlerList handlers = new HandlerList();
private final UnleashReason reason;
private boolean dropLeash; // Paper
+ private boolean cancelled; // Paper
// Paper start - drop leash variable
@Deprecated
@@ -53,6 +62,16 @@ public class EntityUnleashEvent extends EntityEvent {
public void setDropLeash(boolean dropLeash) {
this.dropLeash = dropLeash;
}
+
+ @Override
+ public boolean isCancelled() {
+ return cancelled;
+ }
+
+ @Override
+ public void setCancelled(boolean cancel) {
+ this.cancelled = cancel;
+ }
// Paper end
@NotNull

41
patches/server/0746-Make-EntityUnleashEvent-cancellable.patch Normal file
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@ -0,0 +1,41 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 3 Jan 2021 21:25:31 -0800
Subject: [PATCH] Make EntityUnleashEvent cancellable
diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
index a8e5be1c941755b3e5b335d8211ca70a6c6fc32f..bada11542390b7575466f0e7062470665b8266c4 100644
--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
@@ -1448,7 +1448,7 @@ public abstract class Mob extends LivingEntity {
if (flag1 && this.isLeashed()) {
// Paper start - drop leash variable
EntityUnleashEvent event = new EntityUnleashEvent(this.getBukkitEntity(), UnleashReason.UNKNOWN, true);
- this.level.getCraftServer().getPluginManager().callEvent(event); // CraftBukkit
+ if (!event.callEvent()) { return flag1; }
this.dropLeash(true, event.isDropLeash());
// Paper end
}
diff --git a/src/main/java/net/minecraft/world/entity/PathfinderMob.java b/src/main/java/net/minecraft/world/entity/PathfinderMob.java
index d16a7bab5495d58ea9e6811d4b507667cfa3d264..94bf73eb54e302a9d41fbf8b0a487d2660adcd0e 100644
--- a/src/main/java/net/minecraft/world/entity/PathfinderMob.java
+++ b/src/main/java/net/minecraft/world/entity/PathfinderMob.java
@@ -49,7 +49,7 @@ public abstract class PathfinderMob extends Mob {
if (f > entity.level.paperConfig.maxLeashDistance) { // Paper
// Paper start - drop leash variable
EntityUnleashEvent event = new EntityUnleashEvent(this.getBukkitEntity(), EntityUnleashEvent.UnleashReason.DISTANCE, true);
- this.level.getCraftServer().getPluginManager().callEvent(event); // CraftBukkit
+ if (!event.callEvent()) { return; }
this.dropLeash(true, event.isDropLeash());
// Paper end
}
@@ -61,7 +61,7 @@ public abstract class PathfinderMob extends Mob {
if (f > entity.level.paperConfig.maxLeashDistance) { // Paper
// Paper start - drop leash variable
EntityUnleashEvent event = new EntityUnleashEvent(this.getBukkitEntity(), EntityUnleashEvent.UnleashReason.DISTANCE, true);
- this.level.getCraftServer().getPluginManager().callEvent(event); // CraftBukkit
+ if (!event.callEvent()) return;
this.dropLeash(true, event.isDropLeash());
// Paper end
this.goalSelector.disableControlFlag(Goal.Flag.MOVE);