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 d55d0a1a188813f83bc99149d38b5d4339cc9d9b..2786df9e1ee9f7e774fef3d9f4bb3db3b9440b10 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, villageplacetype) -> {
         return villageplacetype == PoiType.MEETING;
     });
+    private final int brainTickOffset; // Purpur
 
     public long nextGolemPanic = -1; // Pufferfish
 
@@ -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
@@ -279,6 +281,10 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
         this.level.getProfiler().push("villagerBrain");
         // Pufferfish start
         if (!inactive) {
+            // 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()) && this.behaviorTick++ % this.activatedPriority == 0) // Pufferfish // Purpur - only use brain if no rider
             this.getBrain().tick((ServerLevel) this.level, this); // Paper
          }
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;