From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jason Penilla <11360596+jpenilla@users.noreply.github.com>
Date: Thu, 20 Aug 2020 17:38:12 -0700
Subject: [PATCH] Customizable wither health and healing

Adds the ability to customize the health of the wither, as well as the amount that it heals, and how often.

diff --git a/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java b/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java
index 87a0d264d9b54e1b0b29f49431212c977864a30a..87c5dd63bd4a0dd045b5ff30105217562af7967c 100644
--- a/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java
+++ b/src/main/java/net/minecraft/world/entity/boss/wither/WitherBoss.java
@@ -399,8 +399,10 @@ public class WitherBoss extends Monster implements PowerableMob, RangedAttackMob
                 }
             }
 
-            if (this.tickCount % 20 == 0) {
-                this.heal(1.0F, EntityRegainHealthEvent.RegainReason.REGEN); // CraftBukkit
+            // Purpur start - customizable heal rate and amount
+            if (this.tickCount % level.purpurConfig.witherHealthRegenDelay == 0) {
+                this.heal(level.purpurConfig.witherHealthRegenAmount, EntityRegainHealthEvent.RegainReason.REGEN); // CraftBukkit
+                // Purpur end
             }
 
             this.bossEvent.setProgress(this.getHealth() / this.getMaxHealth());
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 8883a6364f0245f2814fab1bdf8ce8da4b625ae0..c4fbdb55b9f9b90a7fe6ed6ac84e7e775d163b65 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -1273,6 +1273,8 @@ public class PurpurWorldConfig {
     }
 
     public double witherMaxHealth = 300.0D;
+    public float witherHealthRegenAmount = 1.0f;
+    public int witherHealthRegenDelay = 20;
     private void witherSettings() {
         if (PurpurConfig.version < 8) {
             double oldValue = getDouble("mobs.wither.max-health", witherMaxHealth);
@@ -1284,6 +1286,8 @@ public class PurpurWorldConfig {
             set("mobs.wither.attributes.max_health", oldValue);
         }
         witherMaxHealth = getDouble("mobs.wither.attributes.max_health", witherMaxHealth);
+        witherHealthRegenAmount = (float) getDouble("mobs.wither.health-regen-amount", witherHealthRegenAmount);
+        witherHealthRegenDelay = getInt("mobs.wither.health-regen-delay", witherHealthRegenDelay);
     }
 
     public double witherSkeletonMaxHealth = 20.0D;