From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Tue, 1 May 2018 20:18:54 -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/net/minecraft/world/entity/monster/EnderMan.java b/src/main/java/net/minecraft/world/entity/monster/EnderMan.java
index 1981c08af85b16d45531ffae4fe790bb31edec04..d190b58bea310f4006ea3deaf0d42c502d441284 100644
--- a/src/main/java/net/minecraft/world/entity/monster/EnderMan.java
+++ b/src/main/java/net/minecraft/world/entity/monster/EnderMan.java
@@ -221,20 +221,28 @@ public class EnderMan extends Monster implements NeutralMob {
         this.readPersistentAngerSaveData((ServerLevel) this.level, tag);
     }
 
+    // Paper start - OBFHELPER - ok not really, but verify this on updates
     private boolean isLookingAtMe(Player player) {
-        ItemStack itemstack = (ItemStack) player.inventory.armor.get(3);
+        boolean shouldAttack = g_real(player);
+        com.destroystokyo.paper.event.entity.EndermanAttackPlayerEvent event = new com.destroystokyo.paper.event.entity.EndermanAttackPlayerEvent((org.bukkit.entity.Enderman) getBukkitEntity(), (org.bukkit.entity.Player) player.getBukkitEntity());
+        event.setCancelled(!shouldAttack);
+        return event.callEvent();
+    }
+    private boolean g_real(Player entityhuman) {
+        // Paper end
+        ItemStack itemstack = (ItemStack) entityhuman.inventory.armor.get(3);
 
         if (itemstack.getItem() == Blocks.CARVED_PUMPKIN.asItem()) {
             return false;
         } else {
-            Vec3 vec3d = player.getViewVector(1.0F).normalize();
-            Vec3 vec3d1 = new Vec3(this.getX() - player.getX(), this.getEyeY() - player.getEyeY(), this.getZ() - player.getZ());
+            Vec3 vec3d = entityhuman.getViewVector(1.0F).normalize();
+            Vec3 vec3d1 = new Vec3(this.getX() - entityhuman.getX(), this.getEyeY() - entityhuman.getEyeY(), this.getZ() - entityhuman.getZ());
             double d0 = vec3d1.length();
 
             vec3d1 = vec3d1.normalize();
             double d1 = vec3d.dot(vec3d1);
 
-            return d1 > 1.0D - 0.025D / d0 ? player.canSee(this) : false;
+            return d1 > 1.0D - 0.025D / d0 ? entityhuman.canSee(this) : false;
         }
     }