From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Fri, 29 Nov 2019 22:10:12 -0600
Subject: [PATCH] Villagers follow emerald blocks


diff --git a/net/minecraft/world/entity/ai/attributes/DefaultAttributes.java b/net/minecraft/world/entity/ai/attributes/DefaultAttributes.java
index 61ed4d687120fcbb7b91863e400f3657ebcde687..e773c426567964fc8269237d71c3434a5473985c 100644
--- a/net/minecraft/world/entity/ai/attributes/DefaultAttributes.java
+++ b/net/minecraft/world/entity/ai/attributes/DefaultAttributes.java
@@ -162,7 +162,7 @@ public class DefaultAttributes {
         .put(EntityType.VILLAGER, Villager.createAttributes().build())
         .put(EntityType.VINDICATOR, Vindicator.createAttributes().build())
         .put(EntityType.WARDEN, Warden.createAttributes().build())
-        .put(EntityType.WANDERING_TRADER, Mob.createMobAttributes().build())
+        .put(EntityType.WANDERING_TRADER, net.minecraft.world.entity.npc.WanderingTrader.createAttributes().build()) // Purpur - Villagers follow emerald blocks
         .put(EntityType.WITCH, Witch.createAttributes().build())
         .put(EntityType.WITHER, WitherBoss.createAttributes().build())
         .put(EntityType.WITHER_SKELETON, AbstractSkeleton.createAttributes().build())
diff --git a/net/minecraft/world/entity/ai/goal/TemptGoal.java b/net/minecraft/world/entity/ai/goal/TemptGoal.java
index 438d6347778a94b4fe430320b268a2d67afa209a..f88f618d34fb343b31de3af1a875d6633703df71 100644
--- a/net/minecraft/world/entity/ai/goal/TemptGoal.java
+++ b/net/minecraft/world/entity/ai/goal/TemptGoal.java
@@ -58,7 +58,7 @@ public class TemptGoal extends Goal {
     }
 
     private boolean shouldFollow(LivingEntity entity) {
-        return this.items.test(entity.getMainHandItem()) || this.items.test(entity.getOffhandItem());
+        return (this.items.test(entity.getMainHandItem()) || this.items.test(entity.getOffhandItem())) && (!(this.mob instanceof net.minecraft.world.entity.npc.Villager villager) || !villager.isSleeping()); // Purpur - Villagers follow emerald blocks
     }
 
     @Override
diff --git a/net/minecraft/world/entity/npc/AbstractVillager.java b/net/minecraft/world/entity/npc/AbstractVillager.java
index a71d16d968bb90fd7aca6f01a3dd56df4f9a7ce6..b4e79cac5611942240ce85120f7bbee329ae2fb8 100644
--- a/net/minecraft/world/entity/npc/AbstractVillager.java
+++ b/net/minecraft/world/entity/npc/AbstractVillager.java
@@ -45,6 +45,8 @@ import org.bukkit.event.entity.VillagerAcquireTradeEvent;
 // CraftBukkit end
 
 public abstract class AbstractVillager extends AgeableMob implements InventoryCarrier, Npc, Merchant {
+    static final net.minecraft.world.item.crafting.Ingredient TEMPT_ITEMS = net.minecraft.world.item.crafting.Ingredient.of(net.minecraft.world.level.block.Blocks.EMERALD_BLOCK.asItem()); // Purpur - Villagers follow emerald blocks
+
     // CraftBukkit start
     @Override
     public CraftMerchant getCraftMerchant() {
diff --git a/net/minecraft/world/entity/npc/Villager.java b/net/minecraft/world/entity/npc/Villager.java
index c71d0f8efacb60e49395567fdc0c1c1e6e6f5aa8..2f685a186b2dc27e70cddd5c4951c27e7ee3ef53 100644
--- a/net/minecraft/world/entity/npc/Villager.java
+++ b/net/minecraft/world/entity/npc/Villager.java
@@ -265,6 +265,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
     @Override
     protected void registerGoals() {
         this.goalSelector.addGoal(0, new org.purpurmc.purpur.entity.ai.HasRider(this));
+        if (level().purpurConfig.villagerFollowEmeraldBlock) this.goalSelector.addGoal(3, new net.minecraft.world.entity.ai.goal.TemptGoal(this, 1.0D, TEMPT_ITEMS, false)); // Purpur - Villagers follow emerald blocks
     }
     // Purpur end - Ridables
 
@@ -273,6 +274,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
     public void initAttributes() {
         this.getAttribute(Attributes.MAX_HEALTH).setBaseValue(this.level().purpurConfig.villagerMaxHealth);
         this.getAttribute(Attributes.SCALE).setBaseValue(this.level().purpurConfig.villagerScale);
+        this.getAttribute(Attributes.TEMPT_RANGE).setBaseValue(this.level().purpurConfig.villagerTemptRange); // Purpur - Villagers follow emerald blocks
     }
     // Purpur end - Configurable entity base attributes
 
@@ -341,7 +343,7 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
     }
 
     public static AttributeSupplier.Builder createAttributes() {
-        return Mob.createMobAttributes().add(Attributes.MOVEMENT_SPEED, 0.5);
+        return Mob.createMobAttributes().add(Attributes.MOVEMENT_SPEED, 0.5).add(Attributes.TEMPT_RANGE, 10.0D); // Purpur - Villagers follow emerald blocks
     }
 
     public boolean assignProfessionWhenSpawned() {
diff --git a/net/minecraft/world/entity/npc/WanderingTrader.java b/net/minecraft/world/entity/npc/WanderingTrader.java
index b5af32a431b5ffe20b32bd82ccfae9b8343d0592..f9755f36f7863b9742fe5b840a8130891ddff7c7 100644
--- a/net/minecraft/world/entity/npc/WanderingTrader.java
+++ b/net/minecraft/world/entity/npc/WanderingTrader.java
@@ -97,9 +97,16 @@ public class WanderingTrader extends net.minecraft.world.entity.npc.AbstractVill
     @Override
     public void initAttributes() {
         this.getAttribute(net.minecraft.world.entity.ai.attributes.Attributes.MAX_HEALTH).setBaseValue(this.level().purpurConfig.wanderingTraderMaxHealth);
+        this.getAttribute(net.minecraft.world.entity.ai.attributes.Attributes.TEMPT_RANGE).setBaseValue(this.level().purpurConfig.wanderingTraderTemptRange); // Purpur - Villagers follow emerald blocks
     }
     // Purpur end - Configurable entity base attributes
 
+    // Purpur start - Villagers follow emerald blocks
+    public static net.minecraft.world.entity.ai.attributes.AttributeSupplier.Builder createAttributes() {
+        return Mob.createMobAttributes().add(net.minecraft.world.entity.ai.attributes.Attributes.TEMPT_RANGE, 10.0D);
+    }
+    // Purpur end - Villagers follow emerald blocks
+
     @Override
     protected void registerGoals() {
         this.goalSelector.addGoal(0, new FloatGoal(this));
@@ -134,6 +141,7 @@ public class WanderingTrader extends net.minecraft.world.entity.npc.AbstractVill
         this.goalSelector.addGoal(1, new PanicGoal(this, 0.5));
         this.goalSelector.addGoal(1, new LookAtTradingPlayerGoal(this));
         this.goalSelector.addGoal(2, new WanderingTrader.WanderToPositionGoal(this, 2.0, 0.35));
+        if (level().purpurConfig.wanderingTraderFollowEmeraldBlock) this.goalSelector.addGoal(3, new net.minecraft.world.entity.ai.goal.TemptGoal(this, 1.0D, TEMPT_ITEMS, false)); // Purpur - Villagers follow emerald blocks
         this.goalSelector.addGoal(4, new MoveTowardsRestrictionGoal(this, 0.35));
         this.goalSelector.addGoal(8, new WaterAvoidingRandomStrollGoal(this, 0.35));
         this.goalSelector.addGoal(9, new InteractGoal(this, Player.class, 3.0F, 1.0F));