Purpur/patches/server/0011-LivingEntity-safeFallDistance.patch

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


diff --git a/src/main/java/net/minecraft/world/entity/EntityLiving.java b/src/main/java/net/minecraft/world/entity/EntityLiving.java
index 33f689b1c9f4c00969fbdd8ddb21901637afb81c..16b408916a72fb2f21fcc315d396bfcb50f7c875 100644
--- a/src/main/java/net/minecraft/world/entity/EntityLiving.java
+++ b/src/main/java/net/minecraft/world/entity/EntityLiving.java
@@ -227,6 +227,7 @@ public abstract class EntityLiving 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;
@@ -321,8 +322,8 @@ public abstract class EntityLiving extends Entity {
             this.cR();
         }
 
-        if (!this.world.isClientSide && this.fallDistance > 3.0F && flag) {
-            float f = (float) MathHelper.f(this.fallDistance - 3.0F);
+        if (!this.world.isClientSide && this.fallDistance > this.safeFallDistance && flag) { // Purpur
+            float f = (float) MathHelper.f(this.fallDistance - this.safeFallDistance); // Purpur
 
             if (!iblockdata.isAir()) {
                 double d1 = Math.min((double) (0.2F + f / 15.0F), 2.5D);
@@ -1787,7 +1788,7 @@ public abstract class EntityLiving extends Entity {
         MobEffect mobeffect = this.getEffect(MobEffects.JUMP);
         float f2 = mobeffect == null ? 0.0F : (float) (mobeffect.getAmplifier() + 1);
 
-        return MathHelper.f((f - 3.0F - f2) * f1);
+        return MathHelper.f((f - this.safeFallDistance - f2) * f1); // Purpur
     }
 
     protected void playBlockStepSound() {
diff --git a/src/main/java/net/minecraft/world/entity/animal/horse/EntityHorseAbstract.java b/src/main/java/net/minecraft/world/entity/animal/horse/EntityHorseAbstract.java
index 1e41c45af6dbcf097d7d6104e63db637f199301a..cb6e2053d1315b65812e7bff8a17988b5b8ab0e4 100644
--- a/src/main/java/net/minecraft/world/entity/animal/horse/EntityHorseAbstract.java
+++ b/src/main/java/net/minecraft/world/entity/animal/horse/EntityHorseAbstract.java
@@ -272,7 +272,7 @@ public abstract class EntityHorseAbstract extends EntityAnimal implements IInven
 
     @Override
     protected int e(float f, float f1) {
-        return MathHelper.f((f * 0.5F - 3.0F) * f1);
+        return MathHelper.f((f * 0.5F - this.safeFallDistance) * f1); // Purpur
     }
 
     protected int getChestSlots() {
diff --git a/src/main/java/net/minecraft/world/entity/monster/EntityGiantZombie.java b/src/main/java/net/minecraft/world/entity/monster/EntityGiantZombie.java
index 3b004160da9a2aed440a3ccda538d78f91c61e87..5e6a92dcdbca686d5a8cfc4aaff72b70b81b111f 100644
--- a/src/main/java/net/minecraft/world/entity/monster/EntityGiantZombie.java
+++ b/src/main/java/net/minecraft/world/entity/monster/EntityGiantZombie.java
@@ -13,6 +13,7 @@ public class EntityGiantZombie extends EntityMonster {
 
     public EntityGiantZombie(EntityTypes<? extends EntityGiantZombie> entitytypes, World world) {
         super(entitytypes, 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 32428b1260bbc4bae67ec74969c67f71272de418..a248c6ac0eb9bcc8c3dbd38ead35104b9580d427 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -864,4 +864,16 @@ 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
 }