Paper/patches/server/1031-Void-damage-configuration-API.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Axionize <154778082+Axionize@users.noreply.github.com>
Date: Sun, 29 Sep 2024 14:20:42 -0700
Subject: [PATCH] Void damage configuration API


diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 20fcfb7d7d2541731452454d78f6967215c4fcd7..5949cbccb569ab1d518508d200e69ad9d7d0ba9a 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -854,8 +854,9 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
     }
 
     public void checkBelowWorld() {
+        if (!this.level.getWorld().isVoidDamageEnabled()) return; // Paper - check if void damage is enabled on the world
         // Paper start - Configurable nether ceiling damage
-        if (this.getY() < (double) (this.level.getMinY() - 64) || (this.level.getWorld().getEnvironment() == org.bukkit.World.Environment.NETHER
+        if (this.getY() < (double) (this.level.getMinY() + this.level.getWorld().getVoidDamageMinBuildHeightOffset()) || (this.level.getWorld().getEnvironment() == org.bukkit.World.Environment.NETHER // Paper - use configured min build height offset
             && this.level.paperConfig().environment.netherCeilingVoidDamageHeight.test(v -> this.getY() >= v)
             && (!(this instanceof Player player) || !player.getAbilities().invulnerable))) {
             // Paper end - Configurable nether ceiling damage
diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
index f2708479ccf994278ad1ab4665edc46672001e8a..59c992173fda6153c58722caae061b0e6bee86a1 100644
--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
+++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
@@ -2701,7 +2701,7 @@ public abstract class LivingEntity extends Entity implements Attackable {
 
     @Override
     protected void onBelowWorld() {
-        this.hurt(this.damageSources().fellOutOfWorld(), 4.0F);
+        this.hurt(this.damageSources().fellOutOfWorld(), this.level().getWorld().getVoidDamageAmount()); // Paper - use configured void damage amount
     }
 
     protected void updateSwingTime() {
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index 61271ef3741656e81f30f9276ee48630ce97b3d3..4a5a0e33af16369f665bf39e70238e4e5a5486da 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -167,6 +167,41 @@ public class CraftWorld extends CraftRegionAccessor implements World {
     private final Object2IntOpenHashMap<SpawnCategory> spawnCategoryLimit = new Object2IntOpenHashMap<>();
     private final CraftPersistentDataContainer persistentDataContainer = new CraftPersistentDataContainer(CraftWorld.DATA_TYPE_REGISTRY);
     private net.kyori.adventure.pointer.Pointers adventure$pointers; // Paper - implement pointers
+    // Paper start - void damage configuration
+    private boolean voidDamageEnabled;
+    private float voidDamageAmount;
+    private double voidDamageMinBuildHeightOffset;
+
+    @Override
+    public boolean isVoidDamageEnabled() {
+        return this.voidDamageEnabled;
+    }
+
+    @Override
+    public void setVoidDamageEnabled(final boolean enabled) {
+        this.voidDamageEnabled = enabled;
+    }
+
+    @Override
+    public float getVoidDamageAmount() {
+        return this.voidDamageAmount;
+    }
+
+    @Override
+    public void setVoidDamageAmount(float voidDamageAmount) {
+        this.voidDamageAmount = voidDamageAmount;
+    }
+
+    @Override
+    public double getVoidDamageMinBuildHeightOffset() {
+        return this.voidDamageMinBuildHeightOffset;
+    }
+
+    @Override
+    public void setVoidDamageMinBuildHeightOffset(double minBuildHeightOffset) {
+        this.voidDamageMinBuildHeightOffset = minBuildHeightOffset;
+    }
+    // Paper end - void damage configuration
 
     // Paper start - Provide fast information methods
     @Override
@@ -267,6 +302,12 @@ public class CraftWorld extends CraftRegionAccessor implements World {
             }
         }
         // Paper end - per world spawn limits
+
+        // Paper start - per world void damage height
+        this.voidDamageEnabled = this.world.paperConfig().environment.voidDamageAmount.enabled();
+        this.voidDamageMinBuildHeightOffset = this.world.paperConfig().environment.voidDamageMinBuildHeightOffset;
+        this.voidDamageAmount = (float) this.world.paperConfig().environment.voidDamageAmount.or(0);
+        // Paper end - per world void damage height
     }
 
     @Override