From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <blake.galbreath@gmail.com>
Date: Thu, 3 Oct 2019 18:08:03 -0500
Subject: [PATCH] Allow leashing villagers


diff --git a/src/main/java/net/minecraft/world/entity/Mob.java b/src/main/java/net/minecraft/world/entity/Mob.java
index 89ea4208bc30bcf3ed59b3a28384c0796b9204c4..0c1aa12dafb34ed76dd899893748556f9fe23487 100644
--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
@@ -1302,6 +1302,7 @@ public abstract class Mob extends LivingEntity implements Targeting {
         if (!this.isAlive()) {
             return InteractionResult.PASS;
         } else if (this.getLeashHolder() == player) {
+            if (hand == InteractionHand.OFF_HAND && (level().purpurConfig.villagerCanBeLeashed || level().purpurConfig.wanderingTraderCanBeLeashed) && this instanceof net.minecraft.world.entity.npc.AbstractVillager) return InteractionResult.CONSUME; // Purpur
             // CraftBukkit start - fire PlayerUnleashEntityEvent
             // Paper start - drop leash variable
             org.bukkit.event.player.PlayerUnleashEntityEvent event = CraftEventFactory.callPlayerUnleashEntityEvent(this, player, hand, !player.getAbilities().instabuild);
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 c613afe70566545136a48d6b820fb8d085934565..813b9708d218589afaaa2d0578affcc78f0c075f 100644
--- a/src/main/java/net/minecraft/world/entity/npc/Villager.java
+++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java
@@ -182,6 +182,11 @@ public class Villager extends AbstractVillager implements ReputationEventHandler
         this.getAttribute(Attributes.MAX_HEALTH).setBaseValue(this.level().purpurConfig.villagerMaxHealth);
     }
 
+    @Override
+    public boolean canBeLeashed(Player player) {
+        return level().purpurConfig.villagerCanBeLeashed && !this.isLeashed();
+    }
+
     @Override
     public Brain<Villager> getBrain() {
         return (Brain<Villager>) super.getBrain(); // CraftBukkit - decompile error
diff --git a/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java b/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
index 1c7359431533716b2681176b3b59b5028aa043c2..41ddf073ecb8ea97cca8021390500d65866488a5 100644
--- a/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
+++ b/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
@@ -88,6 +88,11 @@ public class WanderingTrader extends net.minecraft.world.entity.npc.AbstractVill
         this.getAttribute(net.minecraft.world.entity.ai.attributes.Attributes.MAX_HEALTH).setBaseValue(this.level().purpurConfig.wanderingTraderMaxHealth);
     }
 
+    @Override
+    public boolean canBeLeashed(Player player) {
+        return level().purpurConfig.wanderingTraderCanBeLeashed && !this.isLeashed();
+    }
+
     @Override
     protected void registerGoals() {
         this.goalSelector.addGoal(0, new FloatGoal(this));
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 7baa48a5537cf7e5f47b106b39da039767547148..97710a3988ead1049b35de2a9be89cec738ed149 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -1443,6 +1443,7 @@ public class PurpurWorldConfig {
     public boolean villagerControllable = true;
     public double villagerMaxHealth = 20.0D;
     public boolean villagerFollowEmeraldBlock = false;
+    public boolean villagerCanBeLeashed = false;
     private void villagerSettings() {
         villagerRidable = getBoolean("mobs.villager.ridable", villagerRidable);
         villagerRidableInWater = getBoolean("mobs.villager.ridable-in-water", villagerRidableInWater);
@@ -1454,6 +1455,7 @@ public class PurpurWorldConfig {
         }
         villagerMaxHealth = getDouble("mobs.villager.attributes.max_health", villagerMaxHealth);
         villagerFollowEmeraldBlock = getBoolean("mobs.villager.follow-emerald-blocks", villagerFollowEmeraldBlock);
+        villagerCanBeLeashed = getBoolean("mobs.villager.can-be-leashed", villagerCanBeLeashed);
     }
 
     public boolean vindicatorRidable = false;
@@ -1477,6 +1479,7 @@ public class PurpurWorldConfig {
     public boolean wanderingTraderControllable = true;
     public double wanderingTraderMaxHealth = 20.0D;
     public boolean wanderingTraderFollowEmeraldBlock = false;
+    public boolean wanderingTraderCanBeLeashed = false;
     private void wanderingTraderSettings() {
         wanderingTraderRidable = getBoolean("mobs.wandering_trader.ridable", wanderingTraderRidable);
         wanderingTraderRidableInWater = getBoolean("mobs.wandering_trader.ridable-in-water", wanderingTraderRidableInWater);
@@ -1488,6 +1491,7 @@ public class PurpurWorldConfig {
         }
         wanderingTraderMaxHealth = getDouble("mobs.wandering_trader.attributes.max_health", wanderingTraderMaxHealth);
         wanderingTraderFollowEmeraldBlock = getBoolean("mobs.wandering_trader.follow-emerald-blocks", wanderingTraderFollowEmeraldBlock);
+        wanderingTraderCanBeLeashed = getBoolean("mobs.wandering_trader.can-be-leashed", wanderingTraderCanBeLeashed);
     }
 
     public boolean wardenRidable = false;