From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: peaches94 <peachescu94@gmail.com>
Date: Sun, 10 Jul 2022 15:44:38 -0500
Subject: [PATCH] Petal: Reduce sensor work

Original license: GPL v3
Original project: https://github.com/Bloom-host/Petal

this patch is focused around the sensors used for ai
delete the line of sight cache less often and use a faster nearby comparison

diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index cb6f4a671dc258eab9e739d5a80952e3768acbbd..a6f9361ac685bd87c6a697c4f0da0b37dccbb5ab 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -1012,12 +1012,14 @@ public abstract class LivingEntity extends Entity {
         }
 
         if (entity != null) {
-            ItemStack itemstack = this.getItemBySlot(EquipmentSlot.HEAD);
+            // petal start - only do itemstack lookup if we need to
+            //ItemStack itemstack = this.getItemBySlot(EquipmentSlot.HEAD);
             EntityType<?> entitytypes = entity.getType();
 
-            if (entitytypes == EntityType.SKELETON && itemstack.is(Items.SKELETON_SKULL) || entitytypes == EntityType.ZOMBIE && itemstack.is(Items.ZOMBIE_HEAD) || entitytypes == EntityType.PIGLIN && itemstack.is(Items.PIGLIN_HEAD) || entitytypes == EntityType.PIGLIN_BRUTE && itemstack.is(Items.PIGLIN_HEAD) || entitytypes == EntityType.CREEPER && itemstack.is(Items.CREEPER_HEAD)) {
+            if (entitytypes == EntityType.SKELETON && this.getItemBySlot(EquipmentSlot.HEAD).is(Items.SKELETON_SKULL) || entitytypes == EntityType.ZOMBIE && this.getItemBySlot(EquipmentSlot.HEAD).is(Items.ZOMBIE_HEAD) || entitytypes == EntityType.PIGLIN && this.getItemBySlot(EquipmentSlot.HEAD).is(Items.PIGLIN_HEAD) || entitytypes == EntityType.PIGLIN_BRUTE && this.getItemBySlot(EquipmentSlot.HEAD).is(Items.PIGLIN_HEAD) || entitytypes == EntityType.CREEPER && this.getItemBySlot(EquipmentSlot.HEAD).is(Items.CREEPER_HEAD)) {
                 d0 *= 0.5D;
             }
+            // petal end
         }
 
         return d0;
diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
index 27fc50571305132c86497fcb1d5b1bb514610a4e..f1a33fd186fa9c10ac99b7b0e6379902a10dfb14 100644
--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
@@ -867,8 +867,8 @@ public abstract class Mob extends LivingEntity {
             return;
         }
         // Paper end
-        this.sensing.tick();
-        int i = this.level.getServer().getTickCount() + this.getId();
+        int i = this.level.getServer().getTickCount() + this.getId(); // petal - move up
+        if (i % 10 == 0) this.sensing.tick(); // petal - only refresh line of sight cache every half second
 
         if (i % 2 != 0 && this.tickCount > 1) {
             this.targetSelector.tickRunningGoals(false);