From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Sun, 3 Jan 2021 22:27:43 -0800
Subject: [PATCH] Configurable door breaking difficulty


diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 4a9fedb40acc72bec29fe71634406b06ce6b53cd..48e0f9b8dbb94d56200b0b46c2a50d9bfa44b398 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -2,7 +2,10 @@ package com.destroystokyo.paper;
 
 import java.util.Arrays;
 import java.util.List;
-
+import java.util.stream.Collectors;
+import net.minecraft.world.Difficulty;
+import net.minecraft.world.entity.monster.Vindicator;
+import net.minecraft.world.entity.monster.Zombie;
 import com.destroystokyo.paper.antixray.ChunkPacketBlockControllerAntiXray.EngineMode;
 import org.bukkit.Bukkit;
 import org.bukkit.configuration.file.YamlConfiguration;
@@ -89,6 +92,25 @@ public class PaperWorldConfig {
         disableMobSpawnerSpawnEggTransformation = getBoolean("game-mechanics.disable-mob-spawner-spawn-egg-transformation", disableMobSpawnerSpawnEggTransformation);
     }
 
+    public List<Difficulty> zombieBreakDoors;
+    public List<Difficulty> vindicatorBreakDoors;
+    private void setupEntityBreakingDoors() {
+        zombieBreakDoors = getEnumList(
+            "door-breaking-difficulty.zombie",
+            java.util.Arrays.stream(Difficulty.values())
+                .filter(Zombie.DOOR_BREAKING_PREDICATE)
+                .collect(Collectors.toList()),
+            Difficulty.class
+        );
+        vindicatorBreakDoors = getEnumList(
+            "door-breaking-difficulty.vindicator",
+            java.util.Arrays.stream(Difficulty.values())
+                .filter(Vindicator.DOOR_BREAKING_PREDICATE)
+                .collect(Collectors.toList()),
+            Difficulty.class
+        );
+    }
+
     public short keepLoadedRange;
     private void keepLoadedRange() {
         keepLoadedRange = (short) (getInt("keep-spawn-loaded-range", Math.min(spigotConfig.viewDistance, 10)) * 16);
@@ -140,6 +162,11 @@ public class PaperWorldConfig {
         return config.getString("world-settings." + worldName + "." + path, config.getString("world-settings.default." + path));
     }
 
+    private <T extends Enum<T>> List<T> getEnumList(String path, List<T> def, Class<T> type) {
+        config.addDefault("world-settings.default." + path, def.stream().map(Enum::name).collect(Collectors.toList()));
+        return ((List<String>) (config.getList("world-settings." + worldName + "." + path, config.getList("world-settings.default." + path)))).stream().map(s -> Enum.valueOf(type, s)).collect(Collectors.toList());
+    }
+
     public int cactusMaxHeight;
     public int reedMaxHeight;
     public int bambooMaxHeight;
diff --git a/src/main/java/net/minecraft/world/entity/monster/Vindicator.java b/src/main/java/net/minecraft/world/entity/monster/Vindicator.java
index dcaec42b0756cf36da813815b4a54e4d6c4e293a..53a9e4b0fda9f5a3b23a874c53d93fbe931b0cfb 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Vindicator.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Vindicator.java
@@ -48,7 +48,7 @@ import net.minecraft.world.level.ServerLevelAccessor;
 
 public class Vindicator extends AbstractIllager {
     private static final String TAG_JOHNNY = "Johnny";
-    static final Predicate<Difficulty> DOOR_BREAKING_PREDICATE = (difficulty) -> {
+    public static final Predicate<Difficulty> DOOR_BREAKING_PREDICATE = (difficulty) -> { // Paper - package private -> public
         return difficulty == Difficulty.NORMAL || difficulty == Difficulty.HARD;
     };
     private boolean isJohnny; public boolean isJohnny() { return this.isJohnny; } public void setJohnny(boolean johnny) { this.isJohnny = johnny; } // Paper - OBFHELPER
@@ -195,7 +195,7 @@ public class Vindicator extends AbstractIllager {
 
     static class VindicatorBreakDoorGoal extends BreakDoorGoal {
         public VindicatorBreakDoorGoal(Mob mob) {
-            super(mob, 6, Vindicator.DOOR_BREAKING_PREDICATE);
+            super(mob, 6, com.google.common.base.Predicates.in(mob.level.paperConfig.vindicatorBreakDoors)); // Paper
             this.setFlags(EnumSet.of(Goal.Flag.MOVE));
         }
 
diff --git a/src/main/java/net/minecraft/world/entity/monster/Zombie.java b/src/main/java/net/minecraft/world/entity/monster/Zombie.java
index 03acacd30b84452733aa2bdeed515455a1f271f8..9e535cf3293cf624b1e2e1b7fb40a446b888b099 100644
--- a/src/main/java/net/minecraft/world/entity/monster/Zombie.java
+++ b/src/main/java/net/minecraft/world/entity/monster/Zombie.java
@@ -88,7 +88,7 @@ public class Zombie extends Monster {
     public static final int REINFORCEMENT_RANGE_MAX = 40;
     public static final int REINFORCEMENT_RANGE_MIN = 7;
     private static final float BREAK_DOOR_CHANCE = 0.1F;
-    private static final Predicate<Difficulty> DOOR_BREAKING_PREDICATE = (enumdifficulty) -> {
+    public static final Predicate<Difficulty> DOOR_BREAKING_PREDICATE = (enumdifficulty) -> { // Paper - private -> public
         return enumdifficulty == Difficulty.HARD;
     };
     private final BreakDoorGoal breakDoorGoal;
@@ -100,7 +100,7 @@ public class Zombie extends Monster {
 
     public Zombie(EntityType<? extends Zombie> type, Level world) {
         super(type, world);
-        this.breakDoorGoal = new BreakDoorGoal(this, Zombie.DOOR_BREAKING_PREDICATE);
+        this.breakDoorGoal = new BreakDoorGoal(this, com.google.common.base.Predicates.in(world.paperConfig.zombieBreakDoors)); // Paper
     }
 
     public Zombie(Level world) {