Paper/patches/api/0100-EndermanAttackPlayerEvent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 1 May 2018 20:17:44 -0400
Subject: [PATCH] EndermanAttackPlayerEvent

Allow control over whether or not an enderman aggros a player.

This allows you to override/extend the pumpkin/stare logic.

diff --git a/src/main/java/com/destroystokyo/paper/event/entity/EndermanAttackPlayerEvent.java b/src/main/java/com/destroystokyo/paper/event/entity/EndermanAttackPlayerEvent.java
new file mode 100644
index 0000000000000000000000000000000000000000..f530a3d9314e17d1da896cac633f6a422258d9a9
--- /dev/null
+++ b/src/main/java/com/destroystokyo/paper/event/entity/EndermanAttackPlayerEvent.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright (c) 2018 Daniel Ennis (Aikar) MIT License
+ *
+ *  Permission is hereby granted, free of charge, to any person obtaining
+ *  a copy of this software and associated documentation files (the
+ *  "Software"), to deal in the Software without restriction, including
+ *  without limitation the rights to use, copy, modify, merge, publish,
+ *  distribute, sublicense, and/or sell copies of the Software, and to
+ *  permit persons to whom the Software is furnished to do so, subject to
+ *  the following conditions:
+ *
+ *  The above copyright notice and this permission notice shall be
+ *  included in all copies or substantial portions of the Software.
+ *
+ *  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ *  EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ *  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ *  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ *  LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ *  OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ *  WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package com.destroystokyo.paper.event.entity;
+
+import org.bukkit.entity.Enderman;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.Event;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.entity.EntityEvent;
+import org.jetbrains.annotations.NotNull;
+
+/**
+ * Fired when an Enderman determines if it should attack a player or not.
+ * Starts off cancelled if the player is wearing a pumpkin head or is not looking
+ * at the Enderman, according to Vanilla rules.
+ *
+ */
+public class EndermanAttackPlayerEvent extends EntityEvent implements Cancellable {
+    @NotNull private final Player player;
+
+    public EndermanAttackPlayerEvent(@NotNull Enderman entity, @NotNull Player player) {
+        super(entity);
+        this.player = player;
+    }
+
+    /**
+     * The enderman considering attacking
+     *
+     * @return The enderman considering attacking
+     */
+    @NotNull
+    @Override
+    public Enderman getEntity() {
+        return (Enderman) super.getEntity();
+    }
+
+    /**
+     * The player the Enderman is considering attacking
+     *
+     * @return The player the Enderman is considering attacking
+     */
+    @NotNull
+    public Player getPlayer() {
+        return player;
+    }
+
+    private static final HandlerList handlers = new HandlerList();
+
+    @NotNull
+    public HandlerList getHandlers() {
+        return handlers;
+    }
+
+    @NotNull
+    public static HandlerList getHandlerList() {
+        return handlers;
+    }
+
+    private boolean cancelled = false;
+
+    /**
+     *
+     * @return If cancelled, the enderman will not attack
+     */
+    @Override
+    public boolean isCancelled() {
+        return cancelled;
+    }
+
+    /**
+     * Cancels if the Enderman will attack this player
+     * @param cancel true if you wish to cancel this event
+     */
+    @Override
+    public void setCancelled(boolean cancel) {
+        cancelled = cancel;
+    }
+}