From bc95738e40b609fe775192630e50327feb046e79 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

---
 src/main/java/net/minecraft/server/EntityInsentient.java   | 1 +
 src/main/java/net/minecraft/server/EntityVillager.java     | 7 +++++++
 .../java/net/minecraft/server/EntityVillagerTrader.java    | 7 +++++++
 src/main/java/net/pl3x/purpur/PurpurWorldConfig.java       | 4 ++++
 4 files changed, 19 insertions(+)

diff --git a/src/main/java/net/minecraft/server/EntityInsentient.java b/src/main/java/net/minecraft/server/EntityInsentient.java
index bf9d044b0..3adc3434e 100644
--- a/src/main/java/net/minecraft/server/EntityInsentient.java
+++ b/src/main/java/net/minecraft/server/EntityInsentient.java
@@ -1062,6 +1062,7 @@ public abstract class EntityInsentient extends EntityLiving {
         if (!this.isAlive()) {
             return false;
         } else if (this.getLeashHolder() == entityhuman) {
+            if (enumhand == EnumHand.OFF_HAND && (world.purpurConfig.villagerCanBeLeashed || world.purpurConfig.villagerTraderCanBeLeashed) && this instanceof EntityVillagerAbstract) return true; // Purpur
             // CraftBukkit start - fire PlayerUnleashEntityEvent
             if (CraftEventFactory.callPlayerUnleashEntityEvent(this, entityhuman).isCancelled()) {
                 ((EntityPlayer) entityhuman).playerConnection.sendPacket(new PacketPlayOutAttachEntity(this, this.getLeashHolder()));
diff --git a/src/main/java/net/minecraft/server/EntityVillager.java b/src/main/java/net/minecraft/server/EntityVillager.java
index d2680bb09..0abf72871 100644
--- a/src/main/java/net/minecraft/server/EntityVillager.java
+++ b/src/main/java/net/minecraft/server/EntityVillager.java
@@ -1016,4 +1016,11 @@ public class EntityVillager extends EntityVillagerAbstract implements Reputation
         this.bL = restocksToday;
     }
     // Paper end
+
+    // Purpur - start
+    @Override
+    public boolean a(EntityHuman entityhuman) {
+        return world.purpurConfig.villagerCanBeLeashed && !this.isLeashed();
+    }
+    // Purpur - end
 }
diff --git a/src/main/java/net/minecraft/server/EntityVillagerTrader.java b/src/main/java/net/minecraft/server/EntityVillagerTrader.java
index 14ca5fc36..427c58907 100644
--- a/src/main/java/net/minecraft/server/EntityVillagerTrader.java
+++ b/src/main/java/net/minecraft/server/EntityVillagerTrader.java
@@ -283,4 +283,11 @@ public class EntityVillagerTrader extends EntityVillagerAbstract {
             return !blockposition.a((IPosition) this.a.getPositionVector(), d0);
         }
     }
+
+    // Purpur - start
+    @Override
+    public boolean a(EntityHuman entityhuman) {
+        return world.purpurConfig.villagerTraderCanBeLeashed && !this.isLeashed();
+    }
+    // Purpur - end
 }
diff --git a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index caf7f0e84..284054db4 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -780,6 +780,7 @@ public class PurpurWorldConfig {
     public int villagerBrainTicks = 1;
     public boolean villagerUseBrainTicksOnlyWhenLagging = true;
     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);
@@ -787,17 +788,20 @@ public class PurpurWorldConfig {
         villagerBrainTicks = getInt("mobs.villager.brain-ticks", villagerBrainTicks);
         villagerUseBrainTicksOnlyWhenLagging = getBoolean("mobs.villager.use-brain-ticks-only-when-lagging", villagerUseBrainTicksOnlyWhenLagging);
         villagerFollowEmeraldBlock = getBoolean("mobs.villager.follow-emerald-blocks", villagerFollowEmeraldBlock);
+        villagerCanBeLeashed = getBoolean("mobs.villager.can-be-leashed", villagerCanBeLeashed);
     }
 
     public boolean villagerTraderRidable = false;
     public boolean villagerTraderRidableInWater = false;
     public boolean villagerTraderRequireShiftToMount = true;
     public boolean villagerTraderFollowEmeraldBlock = false;
+    public boolean villagerTraderCanBeLeashed = false;
     private void villagerTraderSettings() {
         villagerTraderRidable = getBoolean("mobs.wandering_trader.ridable", villagerTraderRidable);
         villagerTraderRidableInWater = getBoolean("mobs.wandering_trader.ridable-in-water", villagerTraderRidableInWater);
         villagerTraderRequireShiftToMount = getBoolean("mobs.wandering_trader.require-shift-to-mount", villagerTraderRequireShiftToMount);
         villagerTraderFollowEmeraldBlock = getBoolean("mobs.wandering_trader.follow-emerald-blocks", villagerTraderFollowEmeraldBlock);
+        villagerTraderCanBeLeashed = getBoolean("mobs.wandering_trader.can-be-leashed", villagerTraderCanBeLeashed);
     }
 
     public boolean vindicatorRidable = false;
-- 
2.24.0