From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Paul Sauve <paul@technove.co>
Date: Mon, 26 Apr 2021 10:52:56 -0500
Subject: [PATCH] Pufferfish Cache climbing check for activation


diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index 8ccc18881d047e2b06ab3494a25f27e209931413..30bd7101cca4a93df592f0e3c0dd4aac0f347d07 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -157,7 +157,6 @@ import org.bukkit.event.entity.EntityTeleportEvent;
 import org.bukkit.event.player.PlayerItemConsumeEvent;
 // CraftBukkit end
 
-import co.aikar.timings.MinecraftTimings; // Paper
 
 public abstract class LivingEntity extends Entity implements Attackable {
 
@@ -2084,6 +2083,20 @@ public abstract class LivingEntity extends Entity implements Attackable {
         return this.lastClimbablePos;
     }
 
+
+    // Pufferfish start
+    private boolean cachedOnClimable = false;
+    private BlockPos lastClimbingPosition = null;
+
+    public boolean onClimableCached() {
+        if (!this.blockPosition().equals(this.lastClimbingPosition)) {
+            this.cachedOnClimable = this.onClimbable();
+            this.lastClimbingPosition = this.blockPosition();
+        }
+        return this.cachedOnClimable;
+    }
+    // Pufferfish end
+
     public boolean onClimbable() {
         if (this.isSpectator()) {
             return false;
diff --git a/src/main/java/org/spigotmc/ActivationRange.java b/src/main/java/org/spigotmc/ActivationRange.java
index 91c63c3dceddf09018d3651f4c11bf521eb53ecf..96103d7c380e095c06876da00bd4132ae9598671 100644
--- a/src/main/java/org/spigotmc/ActivationRange.java
+++ b/src/main/java/org/spigotmc/ActivationRange.java
@@ -307,7 +307,7 @@ public class ActivationRange
         if ( entity instanceof LivingEntity )
         {
             LivingEntity living = (LivingEntity) entity;
-            if ( living.onClimbable() || living.jumping || living.hurtTime > 0 || living.activeEffects.size() > 0 || living.isFreezing()) // Paper
+            if ( living.onClimableCached() || living.jumping || living.hurtTime > 0 || living.activeEffects.size() > 0 || living.isFreezing() ) // Paper // Pufferfish - use cached
             {
                 return 1; // Paper
             }