From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Fri, 7 Feb 2020 14:36:56 -0600
Subject: [PATCH] Add option to nerf pigmen from nether portals


diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 4bfe2fb948ee204f8c5a8c316141904a8a6a8b16..3496f615aa9857aa704767f460b1b166295ccf39 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -596,4 +596,9 @@ public class PaperWorldConfig {
         disableHopperMoveEvents = getBoolean("hopper.disable-move-event", disableHopperMoveEvents);
         log("Hopper Move Item Events: " + (disableHopperMoveEvents ? "disabled" : "enabled"));
     }
+
+    public boolean nerfNetherPortalPigmen = false;
+    private void nerfNetherPortalPigmen() {
+        nerfNetherPortalPigmen = getBoolean("game-mechanics.nerf-pigmen-from-nether-portals", nerfNetherPortalPigmen);
+    }
 }
diff --git a/src/main/java/net/minecraft/server/BlockPortal.java b/src/main/java/net/minecraft/server/BlockPortal.java
index e5b8d45ed9f62c28b0429859593d881546ccead2..77f8d5e6662fa75e622f07b3e6efae04c38735fe 100644
--- a/src/main/java/net/minecraft/server/BlockPortal.java
+++ b/src/main/java/net/minecraft/server/BlockPortal.java
@@ -46,6 +46,8 @@ public class BlockPortal extends Block {
 
                 if (entity != null) {
                     entity.portalCooldown = entity.getDefaultPortalCooldown();
+                    entity.fromNetherPortal = true; // Paper
+                    if (worldserver.paperConfig.nerfNetherPortalPigmen) ((EntityInsentient) entity).aware = false; // Paper
                 }
             }
         }
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index 9cf05a78871fba00c2453dc103d822271a8fec0b..f55ae42b1445ed0fe8e29f5d47c9b3464011c023 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -194,6 +194,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
     public long activatedTick = Integer.MIN_VALUE;
     public boolean isTemporarilyActive = false; // Paper
     public boolean spawnedViaMobSpawner; // Paper - Yes this name is similar to above, upstream took the better one
+    public boolean fromNetherPortal; // Paper
     protected int numCollisions = 0; // Paper
     public void inactiveTick() { }
     // Spigot end
@@ -1606,6 +1607,9 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
             if (spawnedViaMobSpawner) {
                 nbttagcompound.setBoolean("Paper.FromMobSpawner", true);
             }
+            if (fromNetherPortal) {
+                nbttagcompound.setBoolean("Paper.FromNetherPortal", true);
+            }
             // Paper end
             return nbttagcompound;
         } catch (Throwable throwable) {
@@ -1730,6 +1734,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
             }
 
             spawnedViaMobSpawner = nbttagcompound.getBoolean("Paper.FromMobSpawner"); // Restore entity's from mob spawner status
+            fromNetherPortal = nbttagcompound.getBoolean("Paper.FromNetherPortal");
             if (nbttagcompound.hasKey("Paper.SpawnReason")) {
                 String spawnReasonName = nbttagcompound.getString("Paper.SpawnReason");
                 try {