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Make ProjectileHitEvent Cancellable

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Allows cancelling things like detonating TNT from Fire Arrows
This commit is contained in:
Aikar 2021-01-16 14:31:14 -05:00
parent 00664f31de
commit fe7ff11c9f
2 changed files with 107 additions and 0 deletions
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49
Spigot-API-Patches/Make-ProjectileHitEvent-Cancellable.patch Normal file
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 16 Jan 2021 14:00:16 -0500
Subject: [PATCH] Make ProjectileHitEvent Cancellable
Allows cancelling things like detonating TNT from Fire Arrows
diff --git a/src/main/java/org/bukkit/event/entity/ProjectileHitEvent.java b/src/main/java/org/bukkit/event/entity/ProjectileHitEvent.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/event/entity/ProjectileHitEvent.java
+++ b/src/main/java/org/bukkit/event/entity/ProjectileHitEvent.java
@@ -0,0 +0,0 @@ import org.bukkit.block.Block;
import org.bukkit.block.BlockFace;
import org.bukkit.entity.Entity;
import org.bukkit.entity.Projectile;
+import org.bukkit.event.Cancellable;
import org.bukkit.event.HandlerList;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;
@@ -0,0 +0,0 @@ import org.jetbrains.annotations.Nullable;
/**
* Called when a projectile hits an object
*/
-public class ProjectileHitEvent extends EntityEvent {
+public class ProjectileHitEvent extends EntityEvent implements Cancellable { // Paper
private static final HandlerList handlers = new HandlerList();
private final Entity hitEntity;
private final Block hitBlock;
private final BlockFace hitFace;
+ // Paper start - make cancellable
+ private boolean canceled;
+ /**
+ * @return If the arrow activating a block should be cancelled
+ */
+ public boolean isCancelled() {
+ return canceled;
+ }
+
+ /**
+ * Whether or not to cancel any behavior that would occur from the arrow hitting the block
+ * @param cancel true if you wish to cancel this event
+ */
+ public void setCancelled(boolean cancel) {
+ canceled = cancel;
+ }
+ // Paper end
public ProjectileHitEvent(@NotNull final Projectile projectile) {
this(projectile, null, null);

58
Spigot-Server-Patches/Make-ProjectileHitEvent-Cancellable.patch Normal file
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 16 Jan 2021 14:30:12 -0500
Subject: [PATCH] Make ProjectileHitEvent Cancellable
Allows cancelling things like detonating TNT from Fire Arrows
diff --git a/src/main/java/net/minecraft/server/EntityFireball.java b/src/main/java/net/minecraft/server/EntityFireball.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/EntityFireball.java
+++ b/src/main/java/net/minecraft/server/EntityFireball.java
@@ -0,0 +0,0 @@ public abstract class EntityFireball extends IProjectile {
// CraftBukkit start - Fire ProjectileHitEvent
if (this.dead) {
- CraftEventFactory.callProjectileHitEvent(this, movingobjectposition);
+ if (!CraftEventFactory.callProjectileHitEvent(this, movingobjectposition)) return; // Paper - this is an undesired duplicate event, but make cancellable
}
// CraftBukkit end
}
diff --git a/src/main/java/net/minecraft/server/IProjectile.java b/src/main/java/net/minecraft/server/IProjectile.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/IProjectile.java
+++ b/src/main/java/net/minecraft/server/IProjectile.java
@@ -0,0 +0,0 @@ public abstract class IProjectile extends Entity {
}
protected void a(MovingObjectPosition movingobjectposition) {
- org.bukkit.craftbukkit.event.CraftEventFactory.callProjectileHitEvent(this, movingobjectposition); // CraftBukkit - Call event
+ if (!org.bukkit.craftbukkit.event.CraftEventFactory.callProjectileHitEvent(this, movingobjectposition)) return; // CraftBukkit - Call event // Paper - make cancellable
MovingObjectPosition.EnumMovingObjectType movingobjectposition_enummovingobjecttype = movingobjectposition.getType();
if (movingobjectposition_enummovingobjecttype == MovingObjectPosition.EnumMovingObjectType.ENTITY) {
diff --git a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
+++ b/src/main/java/org/bukkit/craftbukkit/event/CraftEventFactory.java
@@ -0,0 +0,0 @@ public class CraftEventFactory {
return event;
}
- public static void callProjectileHitEvent(Entity entity, MovingObjectPosition position) {
+ public static boolean callProjectileHitEvent(Entity entity, MovingObjectPosition position) { // Paper - make cancellable
if (position.getType() == MovingObjectPosition.EnumMovingObjectType.MISS) {
- return;
+ return false; // Paper - make cancellable
}
Block hitBlock = null;
@@ -0,0 +0,0 @@ public class CraftEventFactory {
}
ProjectileHitEvent event = new ProjectileHitEvent((Projectile) entity.getBukkitEntity(), hitEntity, hitBlock, hitFace);
- entity.world.getServer().getPluginManager().callEvent(event);
+ return event.callEvent(); // Paper
}
public static ExpBottleEvent callExpBottleEvent(Entity entity, int exp) {