Paper/patches/api/0310-Add-more-line-of-sight-methods.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: TwoLeggedCat <80929284+TwoLeggedCat@users.noreply.github.com>
Date: Sat, 29 May 2021 14:33:18 -0500
Subject: [PATCH] Add more line of sight methods
diff --git a/src/main/java/org/bukkit/World.java b/src/main/java/org/bukkit/World.java
index def9f0f9803e71cbe57abcffeb9114a5ab462e54..d149dd1d3d2703a428006e0c3ab5f9251e560882 100644
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--- a/src/main/java/org/bukkit/World.java
+++ b/src/main/java/org/bukkit/World.java
@@ -76,6 +76,14 @@ public interface World extends RegionAccessor, WorldInfo, PluginMessageRecipient
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*/
@NotNull
io.papermc.paper.world.MoonPhase getMoonPhase();
+
+ /**
+ * Tell whether a line of sight exists between the given locations
+ * @param from Location to start at
+ * @param to target Location
+ * @return whether a line of sight exists between {@code from} and {@code to}
+ */
+ public boolean lineOfSightExists(@NotNull Location from, @NotNull Location to);
// Paper end
/**
diff --git a/src/main/java/org/bukkit/entity/LivingEntity.java b/src/main/java/org/bukkit/entity/LivingEntity.java
index 330eab77547ae059f716418f71ad1d3391a57a9b..cda05df6784dd4d6a09710a416dcb71c016dabfc 100644
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--- a/src/main/java/org/bukkit/entity/LivingEntity.java
+++ b/src/main/java/org/bukkit/entity/LivingEntity.java
@@ -483,6 +483,19 @@ public interface LivingEntity extends Attributable, Damageable, ProjectileSource
*/
public boolean hasLineOfSight(@NotNull Entity other);
+ // Paper start
+ /**
+ * Checks whether the living entity has block line of sight to the given block.
+ * <p>
+ * This uses the same algorithm that hostile mobs use to find the closest
+ * player.
+ *
+ * @param location the location to determine line of sight to
+ * @return true if there is a line of sight, false if not
+ */
+ public boolean hasLineOfSight(@NotNull Location location);
+ // Paper end
+
/**
* Returns if the living entity despawns when away from players or not.
* <p>