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Add PrePlayerAttackEntityEvent (#8369)

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Allows you to cancel player event attacking, preventing things like attack sounds from being played.
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Owen 2022-11-09 22:05:58 -05:00 committed by GitHub
parent e6ee4cdffe
commit 117579c6bb
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2 changed files with 129 additions and 0 deletions
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99
patches/api/0406-Add-PrePlayerAttackEntityEvent.patch Normal file
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@ -0,0 +1,99 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Sun, 18 Sep 2022 13:10:28 -0400
Subject: [PATCH] Add PrePlayerAttackEntityEvent
diff --git a/src/main/java/io/papermc/paper/event/player/PrePlayerAttackEntityEvent.java b/src/main/java/io/papermc/paper/event/player/PrePlayerAttackEntityEvent.java
new file mode 100644
index 0000000000000000000000000000000000000000..d49999ea597ef247bbf2298e6bf5600bfe003c3e
--- /dev/null
+++ b/src/main/java/io/papermc/paper/event/player/PrePlayerAttackEntityEvent.java
@@ -0,0 +1,87 @@
+package io.papermc.paper.event.player;
+
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.player.PlayerEvent;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Called when the player tries to attack an entity.
+ *
+ * This occurs before any of the damage logic, so cancelling this event
+ * will prevent any sort of sounds from being played when attacking.
+ *
+ * This event will fire as cancelled for certain entities, with {@link PrePlayerAttackEntityEvent#willAttack()} being false
+ * to indicate that this entity will not actually be attacked.
+ * <p>
+ * Note: there may be other factors (invulnerability, etc) that will prevent this entity from being attacked that this event will not cover
+ */
+public class PrePlayerAttackEntityEvent extends PlayerEvent implements Cancellable {
+
+ private static final HandlerList HANDLER_LIST = new HandlerList();
+
+ @NotNull
+ private final Entity attacked;
+ private boolean cancelled;
+ private final boolean willAttack;
+
+ public PrePlayerAttackEntityEvent(@NotNull Player who, @NotNull Entity attacked, boolean willAttack) {
+ super(who);
+ this.attacked = attacked;
+ this.willAttack = willAttack;
+ this.cancelled = !willAttack;
+ }
+
+ /**
+ * Gets the entity that was attacked in this event.
+ * @return entity that was attacked
+ */
+ @NotNull
+ public Entity getAttacked() {
+ return this.attacked;
+ }
+
+ /**
+ * Gets if this entity will be attacked normally.
+ * Entities like falling sand will return false because
+ * their entity type does not allow them to be attacked.
+ * <p>
+ * Note: there may be other factors (invulnerability, etc) that will prevent this entity from being attacked that this event will not cover
+ * @return if the entity will actually be attacked
+ */
+ public boolean willAttack() {
+ return this.willAttack;
+ }
+
+ @NotNull
+ @Override
+ public HandlerList getHandlers() {
+ return HANDLER_LIST;
+ }
+
+ @NotNull
+ public static HandlerList getHandlerList() {
+ return HANDLER_LIST;
+ }
+
+ @Override
+ public boolean isCancelled() {
+ return this.cancelled;
+ }
+
+ /**
+ * Sets if this attack should be cancelled, note if {@link PrePlayerAttackEntityEvent#willAttack()} returns false
+ * this event will always be cancelled.
+ * @param cancel true if you wish to cancel this event
+ */
+ @Override
+ public void setCancelled(boolean cancel) {
+ if (!this.willAttack) {
+ return;
+ }
+
+ this.cancelled = cancel;
+ }
+}

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patches/server/0936-Add-PrePlayerAttackEntityEvent.patch Normal file
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@ -0,0 +1,30 @@
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Sun, 18 Sep 2022 13:10:18 -0400
Subject: [PATCH] Add PrePlayerAttackEntityEvent
diff --git a/src/main/java/net/minecraft/world/entity/player/Player.java b/src/main/java/net/minecraft/world/entity/player/Player.java
index 9b131f0a827413e9f5d6d0f7491c5481576cb8b1..55bdf4f91be6750dcfd0589c566fbefde4512a1e 100644
--- a/src/main/java/net/minecraft/world/entity/player/Player.java
+++ b/src/main/java/net/minecraft/world/entity/player/Player.java
@@ -1251,8 +1251,17 @@ public abstract class Player extends LivingEntity {
}
public void attack(Entity target) {
- if (target.isAttackable()) {
- if (!target.skipAttackInteraction(this)) {
+ // Paper start - PlayerAttackEntityEvent
+ boolean willAttack = target.isAttackable() && !target.skipAttackInteraction(this); // Vanilla logic
+ io.papermc.paper.event.player.PrePlayerAttackEntityEvent playerAttackEntityEvent = new io.papermc.paper.event.player.PrePlayerAttackEntityEvent(
+ (org.bukkit.entity.Player) this.getBukkitEntity(),
+ target.getBukkitEntity(),
+ willAttack
+ );
+
+ if (playerAttackEntityEvent.callEvent() && willAttack) { // Logic moved to willAttack local variable.
+ {
+ // Paper end
float f = (float) this.getAttributeValue(Attributes.ATTACK_DAMAGE);
float f1;