From 8ad639fb235a4bcd4ccd15a01c9155b6e7c84ba1 Mon Sep 17 00:00:00 2001
From: Etil <81570777+etil2jz@users.noreply.github.com>
Date: Fri, 31 Dec 2021 13:10:43 +0100
Subject: [PATCH] LivingEntity safeFallDistance

---
 .../0086-LivingEntity-safeFallDistance.patch  | 86 +++++++++++++++++++
 1 file changed, 86 insertions(+)
 create mode 100644 patches/server/0086-LivingEntity-safeFallDistance.patch

diff --git a/patches/server/0086-LivingEntity-safeFallDistance.patch b/patches/server/0086-LivingEntity-safeFallDistance.patch
new file mode 100644
index 0000000..4d0d464
--- /dev/null
+++ b/patches/server/0086-LivingEntity-safeFallDistance.patch
@@ -0,0 +1,86 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: William Blake Galbreath <Blake.Galbreath@GMail.com>
+Date: Sun, 5 May 2019 12:58:45 -0500
+Subject: [PATCH] LivingEntity safeFallDistance
+
+Original code by PurpurMC, licensed under MIT
+You can find the original code on https://github.com/PurpurMC/Purpur
+
+diff --git a/src/main/java/net/minecraft/world/entity/LivingEntity.java b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+index 638fb5ea3409d2531135567dc03f6319fa849db4..ccaf4c3090b33c9911bac76ae62c6b916349dc74 100644
+--- a/src/main/java/net/minecraft/world/entity/LivingEntity.java
++++ b/src/main/java/net/minecraft/world/entity/LivingEntity.java
+@@ -251,6 +251,7 @@ public abstract class LivingEntity extends Entity {
+     // CraftBukkit start
+     public int expToDrop;
+     public int maxAirTicks = 300;
++    public float safeFallDistance = 3.0F; // Purpur
+     public boolean forceDrops;
+     public ArrayList<org.bukkit.inventory.ItemStack> drops = new ArrayList<org.bukkit.inventory.ItemStack>();
+     public final org.bukkit.craftbukkit.attribute.CraftAttributeMap craftAttributes;
+@@ -346,8 +347,8 @@ public abstract class LivingEntity extends Entity {
+             this.tryAddSoulSpeed();
+         }
+ 
+-        if (!this.level.isClientSide && this.fallDistance > 3.0F && onGround) {
+-            float f = (float) Mth.ceil(this.fallDistance - 3.0F);
++        if (!this.level.isClientSide && this.fallDistance > this.safeFallDistance && onGround) { // Purpur
++            float f = (float) Mth.ceil(this.fallDistance - this.safeFallDistance); // Purpur
+ 
+             if (!landedState.isAir()) {
+                 double d1 = Math.min((double) (0.2F + f / 15.0F), 2.5D);
+@@ -1922,7 +1923,7 @@ public abstract class LivingEntity extends Entity {
+         MobEffectInstance mobeffect = this.getEffect(MobEffects.JUMP);
+         float f2 = mobeffect == null ? 0.0F : (float) (mobeffect.getAmplifier() + 1);
+ 
+-        return Mth.ceil((fallDistance - 3.0F - f2) * damageMultiplier);
++        return Mth.ceil((fallDistance - this.safeFallDistance - f2) * damageMultiplier); // Purpur
+     }
+ 
+     protected void playBlockFallSound() {
+diff --git a/src/main/java/net/minecraft/world/entity/animal/horse/AbstractHorse.java b/src/main/java/net/minecraft/world/entity/animal/horse/AbstractHorse.java
+index a726006888bbbdb290bcda3ac4fd45d68ba51b79..829753b2a811e97a16189d932f03f4f652b185c6 100644
+--- a/src/main/java/net/minecraft/world/entity/animal/horse/AbstractHorse.java
++++ b/src/main/java/net/minecraft/world/entity/animal/horse/AbstractHorse.java
+@@ -286,7 +286,7 @@ public abstract class AbstractHorse extends Animal implements ContainerListener,
+ 
+     @Override
+     protected int calculateFallDamage(float fallDistance, float damageMultiplier) {
+-        return Mth.ceil((fallDistance * 0.5F - 3.0F) * damageMultiplier);
++        return Mth.ceil((fallDistance * 0.5F - this.safeFallDistance) * damageMultiplier);
+     }
+ 
+     protected int getInventorySize() {
+diff --git a/src/main/java/net/minecraft/world/entity/monster/Giant.java b/src/main/java/net/minecraft/world/entity/monster/Giant.java
+index 0d578ab12c874bd2daccc4322a3fe1abafa4bc18..a183226bb0cf01c5aaf7babe1d08fa9ab7388648 100644
+--- a/src/main/java/net/minecraft/world/entity/monster/Giant.java
++++ b/src/main/java/net/minecraft/world/entity/monster/Giant.java
+@@ -12,6 +12,7 @@ import net.minecraft.world.level.LevelReader;
+ public class Giant extends Monster {
+     public Giant(EntityType<? extends Giant> type, Level world) {
+         super(type, world);
++        this.safeFallDistance = 10.0F; // Purpur
+     }
+ 
+     @Override
+diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+index c022751e3b45469cc0ad6732e2d6ff08918bafa4..1dcfe129ec3633de67404ab5ab72cdcee31d3d9d 100644
+--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
++++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+@@ -920,4 +920,16 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
+         throw new IllegalArgumentException(entityCategory + " is an unrecognized entity category");
+     }
+     // Paper end
++
++    // Purpur start
++    @Override
++    public float getSafeFallDistance() {
++        return getHandle().safeFallDistance;
++    }
++
++    @Override
++    public void setSafeFallDistance(float safeFallDistance) {
++        getHandle().safeFallDistance = safeFallDistance;
++    }
++    // Purpur end
+ }