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 1e56f842c0c76ae2c8ee79a31b319cb2c5c29765..32eb697dd08c1ef0b832659e702675f70f9145cf 100644
--- a/src/main/java/net/minecraft/world/entity/npc/Villager.java
+++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java
@@ -139,6 +139,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
     }, MemoryModuleType.MEETING_POINT, (entityvillager, holder) -> {
         return holder.is(PoiTypes.MEETING);
     });
+    private final int brainTickOffset; // Purpur
 
     public Villager(EntityType<? extends Villager> entityType, Level world) {
         this(entityType, world, VillagerType.PLAINS);
@@ -151,6 +152,7 @@ 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
@@ -274,6 +276,10 @@ 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 (getRider() == null || !this.isControllable())// Purpur - only use brain if no rider
         if (!inactive) this.getBrain().tick((ServerLevel) this.level, this); // Paper
         this.level.getProfiler().pop();
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 81524c4f676766c09125187876b46e0704294880..93d89fb27044e5e97574122b0e7863694d245bf0 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -1207,6 +1207,8 @@ public class PurpurWorldConfig {
     public boolean villagerRidableInWater = false;
     public boolean villagerControllable = true;
     public double villagerMaxHealth = 20.0D;
+    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);
@@ -1217,6 +1219,8 @@ public class PurpurWorldConfig {
             set("mobs.villager.attributes.max_health", oldValue);
         }
         villagerMaxHealth = getDouble("mobs.villager.attributes.max_health", villagerMaxHealth);
+        villagerBrainTicks = getInt("mobs.villager.brain-ticks", villagerBrainTicks);
+        villagerUseBrainTicksOnlyWhenLagging = getBoolean("mobs.villager.use-brain-ticks-only-when-lagging", villagerUseBrainTicksOnlyWhenLagging);
     }
 
     public boolean vindicatorRidable = false;