From 23a8e4efe3aae4d4a2aff0351380e9f8e4ec2f13 Mon Sep 17 00:00:00 2001
From: Bukkit/Spigot <noreply+git-bukkit@papermc.io>
Date: Wed, 21 Mar 2012 16:30:35 +0100
Subject: [PATCH] Add LivingEntity.hasLineOfSight. Addresses BUKKIT-1255

By: TomyLobo <tomylobo@nurfuerspam.de>
---
 .../src/main/java/org/bukkit/entity/LivingEntity.java    | 9 +++++++++
 .../java/org/bukkit/plugin/messaging/TestPlayer.java     | 4 ++++
 2 files changed, 13 insertions(+)

diff --git a/paper-api/src/main/java/org/bukkit/entity/LivingEntity.java b/paper-api/src/main/java/org/bukkit/entity/LivingEntity.java
index 6787d79a55..e93453a394 100644
--- a/paper-api/src/main/java/org/bukkit/entity/LivingEntity.java
+++ b/paper-api/src/main/java/org/bukkit/entity/LivingEntity.java
@@ -269,4 +269,13 @@ public interface LivingEntity extends Entity {
      * @return A collection of {@link PotionEffect}s
      */
     public Collection<PotionEffect> getActivePotionEffects();
+
+    /**
+     * Checks whether the entity has block line of sight to another.<br />
+     * This uses the same algorithm that hostile mobs use to find the closest player.
+     *
+     * @param other The entity to determine line of sight to.
+     * @return true if there is a line of sight, false if not.
+     */
+    public boolean hasLineOfSight(Entity other);
 }
diff --git a/paper-api/src/test/java/org/bukkit/plugin/messaging/TestPlayer.java b/paper-api/src/test/java/org/bukkit/plugin/messaging/TestPlayer.java
index 4a4032b6e6..15e60c14b3 100644
--- a/paper-api/src/test/java/org/bukkit/plugin/messaging/TestPlayer.java
+++ b/paper-api/src/test/java/org/bukkit/plugin/messaging/TestPlayer.java
@@ -756,4 +756,8 @@ public class TestPlayer implements Player {
     public boolean isBlocking() {
         throw new UnsupportedOperationException("Not supported yet.");
     }
+
+    public boolean hasLineOfSight(Entity other) {
+        throw new UnsupportedOperationException("Not supported yet.");
+    }
 }