From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Tue, 23 Jul 2019 08:28:21 -0500
Subject: [PATCH] Configurable villager brain ticks


diff --git a/src/main/java/net/minecraft/world/entity/npc/Villager.java b/src/main/java/net/minecraft/world/entity/npc/Villager.java
index 91edc954029aae9eb4ec0b3899e59eff8e310a6f..a04807d1c1fde2978acee935c84eb8fa5b32e4a9 100644
--- a/src/main/java/net/minecraft/world/entity/npc/Villager.java
+++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java
@@ -141,6 +141,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
     }, MemoryModuleType.MEETING_POINT, (entityvillager, villageplacetype) -> {
         return villageplacetype == PoiType.MEETING;
     });
+    private final int brainTickOffset; // Purpur
 
     public Villager(EntityType<? extends Villager> entityType, Level world) {
         this(entityType, world, VillagerType.PLAINS);
@@ -153,6 +154,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
         this.getNavigation().setCanFloat(true);
         this.setCanPickUpLoot(true);
         this.setVillagerData(this.getVillagerData().setType(type).setProfession(VillagerProfession.NONE));
+        this.brainTickOffset = getRandom().nextInt(100); // Purpur
     }
 
     // Purpur start
@@ -271,6 +273,10 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
     protected void customServerAiStep() { mobTick(false); }
     protected void mobTick(boolean inactive) {
         this.level.getProfiler().push("villagerBrain");
+        // Purpur start
+        boolean tick = (level.getGameTime() + brainTickOffset) % level.purpurConfig.villagerBrainTicks == 0;
+        if (((ServerLevel) level).getServer().lagging ? tick : level.purpurConfig.villagerUseBrainTicksOnlyWhenLagging || tick)
+        // Purpur end
         if (!inactive) this.getBrain().tick((ServerLevel) this.level, this); // CraftBukkit - decompile error // Paper
         this.level.getProfiler().pop();
         if (this.assignProfessionWhenSpawned) {
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index f707437272ff862ed1e0a4e53b17eb86d8c358b1..20240ae5cce348d5f56a74de46bbdce552cdfe94 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -563,9 +563,13 @@ public class PurpurWorldConfig {
 
     public boolean villagerRidable = false;
     public boolean villagerRidableInWater = false;
+    public int villagerBrainTicks = 1;
+    public boolean villagerUseBrainTicksOnlyWhenLagging = true;
     private void villagerSettings() {
         villagerRidable = getBoolean("mobs.villager.ridable", villagerRidable);
         villagerRidableInWater = getBoolean("mobs.villager.ridable-in-water", villagerRidableInWater);
+        villagerBrainTicks = getInt("mobs.villager.brain-ticks", villagerBrainTicks);
+        villagerUseBrainTicksOnlyWhenLagging = getBoolean("mobs.villager.use-brain-ticks-only-when-lagging", villagerUseBrainTicksOnlyWhenLagging);
     }
 
     public boolean vindicatorRidable = false;