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 96631591db018545120ba1c9980a03eb596eb6e5..b447c1c4d7d3133e953d8f70e6720ddfba4f7553 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
@@ -197,6 +197,11 @@ public class WitherBoss extends Monster implements PowerableMob, RangedAttackMob
         level.addFreshEntity(skull);
     }
 
+    @Override
+    public void initAttributes() {
+        this.getAttribute(Attributes.MAX_HEALTH).setBaseValue(level.purpurConfig.witherMaxHealth);
+    }
+
     @Override
     public void initAttributes() {
         this.getAttribute(Attributes.MAX_HEALTH).setBaseValue(this.level.purpurConfig.witherMaxHealth);
@@ -499,8 +504,10 @@ 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/net/pl3x/purpur/PurpurWorldConfig.java b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
index 02a249afc39239327c1bd99f40d73d6cc616644a..a956362ed2b724a50c8f7023799bd3314b287020 100644
--- a/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
+++ b/src/main/java/net/pl3x/purpur/PurpurWorldConfig.java
@@ -1517,6 +1517,8 @@ public class PurpurWorldConfig {
     public boolean witherRidableInWater = false;
     public double witherMaxY = 256D;
     public double witherMaxHealth = 300.0D;
+    public float witherHealthRegenAmount = 1.0f;
+    public int witherHealthRegenDelay = 20;
     private void witherSettings() {
         witherRidable = getBoolean("mobs.wither.ridable", witherRidable);
         witherRidableInWater = getBoolean("mobs.wither.ridable-in-water", witherRidableInWater);
@@ -1531,6 +1533,8 @@ 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 boolean witherSkeletonRidable = false;