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 1fc2b2cee28db5abb8ab33df6fd76de035aef688..84a41eaaa3e2bc2be1706dc436dea21195f7d81c 100644
--- a/src/main/java/net/minecraft/world/entity/Mob.java
+++ b/src/main/java/net/minecraft/world/entity/Mob.java
@@ -1311,6 +1311,7 @@ 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 0f400bfec294e20b620b7a1ad51bb670e1eee418..0df7acbdf1c8d0546eb57291bfa952943a5f6520 100644
--- a/src/main/java/net/minecraft/world/entity/npc/Villager.java
+++ b/src/main/java/net/minecraft/world/entity/npc/Villager.java
@@ -183,6 +183,11 @@ 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 64dd35573db3feae6507fc05086ed08c60f5ea01..ad7a32169b0decad1d3a2bd98e25b07731a33d03 100644
--- a/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
+++ b/src/main/java/net/minecraft/world/entity/npc/WanderingTrader.java
@@ -92,6 +92,11 @@ 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 92a3e3c87ef30b9ba55b3a671f35209db6018631..5ac666f1a71770891b3b437b2d68b0c5a952358f 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -1438,6 +1438,7 @@ 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);
@@ -1449,6 +1450,7 @@ 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;
@@ -1472,6 +1474,7 @@ 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);
@@ -1483,6 +1486,7 @@ 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;