EndermanEscapeEvent

Fires an event anytime an enderman intends to teleport away from the player

You may cancel this, enabling ranged attacks to damage the enderman for example.

Resolves #1101
This commit is contained in:
Aikar 2018-04-30 13:16:42 -04:00
parent ff661c3555
commit 30bc4df0a9
No known key found for this signature in database
GPG key ID: 401ADFC9891FAAFE
2 changed files with 171 additions and 0 deletions

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@ -0,0 +1,90 @@
From 4132364cc9de1e0d531b6dc172ef62b87f3979b9 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 30 Apr 2018 13:14:30 -0400
Subject: [PATCH] EndermanEscapeEvent
Fires an event anytime an enderman intends to teleport away from the player
You may cancel this, enabling ranged attacks to damage the enderman for example.
diff --git a/src/main/java/com/destroystokyo/paper/event/entity/EndermanEscapeEvent.java b/src/main/java/com/destroystokyo/paper/event/entity/EndermanEscapeEvent.java
new file mode 100644
index 00000000..958c66b3
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/event/entity/EndermanEscapeEvent.java
@@ -0,0 +1,72 @@
+package com.destroystokyo.paper.event.entity;
+
+import org.bukkit.entity.Enderman;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.entity.EntityEvent;
+
+public class EndermanEscapeEvent extends EntityEvent implements Cancellable {
+ private final Reason reason;
+
+ public EndermanEscapeEvent(Enderman entity, Reason reason) {
+ super(entity);
+ this.reason = reason;
+ }
+
+ /**
+ * @return The reason the enderman is trying to escape
+ */
+ public Reason getReason() {
+ return reason;
+ }
+
+ private static final HandlerList handlers = new HandlerList();
+
+ public HandlerList getHandlers() {
+ return handlers;
+ }
+
+ public static HandlerList getHandlerList() {
+ return handlers;
+ }
+
+ private boolean cancelled = false;
+
+ @Override
+ public boolean isCancelled() {
+ return cancelled;
+ }
+
+ /**
+ * Cancels the escape.
+ *
+ * If this escape normally would of resulted in damage avoidance such as indirect,
+ * the enderman will now take damage.
+ *
+ * @param cancel true if you wish to cancel this event
+ */
+ @Override
+ public void setCancelled(boolean cancel) {
+ cancelled = cancel;
+ }
+
+ public enum Reason {
+ /**
+ * The enderman has stopped attacking and ran away
+ */
+ RUNAWAY,
+ /**
+ * The enderman has teleported away due to indirect damage (ranged)
+ */
+ INDIRECT,
+ /**
+ * The enderman has teleported away due to a critical hit
+ */
+ CRITICAL_HIT,
+ /**
+ * The enderman has teleported away due to the player staring at it during combat
+ */
+ STARE
+ }
+}
--
2.17.0

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@ -0,0 +1,81 @@
From ba5ac2e872e3a9faec221e4d8bae4ee6c689dbbf Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Mon, 30 Apr 2018 13:15:55 -0400
Subject: [PATCH] EndermanEscapeEvent
Fires an event anytime an enderman intends to teleport away from the player
You may cancel this, enabling ranged attacks to damage the enderman for example.
diff --git a/src/main/java/net/minecraft/server/EntityEnderman.java b/src/main/java/net/minecraft/server/EntityEnderman.java
index 2f59e7071..7b1fb6b7b 100644
--- a/src/main/java/net/minecraft/server/EntityEnderman.java
+++ b/src/main/java/net/minecraft/server/EntityEnderman.java
@@ -1,5 +1,6 @@
package net.minecraft.server;
+import com.destroystokyo.paper.event.entity.EndermanEscapeEvent;
import com.google.common.base.Function;
import com.google.common.base.Optional;
import com.google.common.base.Predicate;
@@ -62,6 +63,12 @@ public class EntityEnderman extends EntityMonster {
setGoalTarget(entityliving, EntityTargetEvent.TargetReason.UNKNOWN, true);
}
+ // Paper start
+ private boolean tryEscape(EndermanEscapeEvent.Reason reason) {
+ return new EndermanEscapeEvent((org.bukkit.craftbukkit.entity.CraftEnderman) this.getBukkitEntity(), reason).callEvent();
+ }
+ // Paper end
+
@Override
public boolean setGoalTarget(EntityLiving entityliving, org.bukkit.event.entity.EntityTargetEvent.TargetReason reason, boolean fireEvent) {
if (!super.setGoalTarget(entityliving, reason, fireEvent)) {
@@ -184,7 +191,7 @@ public class EntityEnderman extends EntityMonster {
if (f > 0.5F && this.world.h(new BlockPosition(this)) && this.random.nextFloat() * 30.0F < (f - 0.4F) * 2.0F) {
this.setGoalTarget((EntityLiving) null);
- this.dm();
+ if (tryEscape(EndermanEscapeEvent.Reason.RUNAWAY)) this.dm(); // Paper
}
}
@@ -264,7 +271,7 @@ public class EntityEnderman extends EntityMonster {
public boolean damageEntity(DamageSource damagesource, float f) {
if (this.isInvulnerable(damagesource)) {
return false;
- } else if (damagesource instanceof EntityDamageSourceIndirect) {
+ } else if (damagesource instanceof EntityDamageSourceIndirect && tryEscape(EndermanEscapeEvent.Reason.INDIRECT)) { // Paper
for (int i = 0; i < 64; ++i) {
if (this.dm()) {
return true;
@@ -275,7 +282,7 @@ public class EntityEnderman extends EntityMonster {
} else {
boolean flag = super.damageEntity(damagesource, f);
- if (damagesource.ignoresArmor() && this.random.nextInt(10) != 0) {
+ if (damagesource.ignoresArmor() && this.random.nextInt(10) != 0 && tryEscape(EndermanEscapeEvent.Reason.CRITICAL_HIT)) { // Paper
this.dm();
}
@@ -382,7 +389,7 @@ public class EntityEnderman extends EntityMonster {
static class PathfinderGoalPlayerWhoLookedAtTarget extends PathfinderGoalNearestAttackableTarget<EntityHuman> {
- private final EntityEnderman i;
+ private final EntityEnderman i; public EntityEnderman getEnderman() { return i; } // Paper - OBFHELPER
private EntityHuman j;
private int k;
private int l;
@@ -440,7 +447,7 @@ public class EntityEnderman extends EntityMonster {
} else {
if (this.d != null) {
if (this.i.f((EntityHuman) this.d)) {
- if (((EntityHuman) this.d).h(this.i) < 16.0D) {
+ if (((EntityHuman) this.d).h(this.i) < 16.0D && this.getEnderman().tryEscape(EndermanEscapeEvent.Reason.STARE)) { // Paper
this.i.dm();
}
--
2.17.0