Purpur/patches/server/0060-Implement-LivingEntity-safeFallDistance.patch

From f265f5fcbd3be4d54f36a83d6dee335b46c00eab 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] Implement LivingEntity safeFallDistance

---
 .../java/net/minecraft/server/EntityGiantZombie.java |  3 +++
 .../net/minecraft/server/EntityHorseAbstract.java    |  2 +-
 src/main/java/net/minecraft/server/EntityLiving.java |  3 ++-
 .../bukkit/craftbukkit/entity/CraftLivingEntity.java | 12 ++++++++++++
 4 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/src/main/java/net/minecraft/server/EntityGiantZombie.java b/src/main/java/net/minecraft/server/EntityGiantZombie.java
index d132a6105f..0b200c7253 100644
--- a/src/main/java/net/minecraft/server/EntityGiantZombie.java
+++ b/src/main/java/net/minecraft/server/EntityGiantZombie.java
@@ -5,6 +5,9 @@ public class EntityGiantZombie extends EntityMonster {
     public EntityGiantZombie(EntityTypes<? extends EntityGiantZombie> entitytypes, World world) {
         super(entitytypes, world);
         setStepHeight(world.purpurConfig.giantStepHeight); // Purpur
+        // Purpur start
+        this.safeFallDistance = 10.0F;
+        // Purpur end
     }
 
     // Purpur start
diff --git a/src/main/java/net/minecraft/server/EntityHorseAbstract.java b/src/main/java/net/minecraft/server/EntityHorseAbstract.java
index 55e18e4c7a..b14f67b3a3 100644
--- a/src/main/java/net/minecraft/server/EntityHorseAbstract.java
+++ b/src/main/java/net/minecraft/server/EntityHorseAbstract.java
@@ -229,7 +229,7 @@ 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/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index cd45260396..60e2b4268c 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -125,6 +125,7 @@ public abstract class EntityLiving extends Entity {
     // CraftBukkit start
     public int expToDrop;
     public int maxAirTicks = 300;
+    public float safeFallDistance = 3.0F; // Purpur
     boolean forceDrops;
     ArrayList<org.bukkit.inventory.ItemStack> drops = new ArrayList<org.bukkit.inventory.ItemStack>();
     public org.bukkit.craftbukkit.attribute.CraftAttributeMap craftAttributes;
@@ -1546,7 +1547,7 @@ 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 cZ() {
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 8ffa3cb059..3dd0faea79 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -739,4 +739,16 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
     }
 
     // Paper end
+
+    // Purpur start
+    @Override
+    public float getSafeFallDistance() {
+        return getHandle().safeFallDistance;
+    }
+
+    @Override
+    public void setSafeFallDistance(float safeFallDistance) {
+        getHandle().safeFallDistance = safeFallDistance;
+    }
+    // Purpur end
 }
-- 
2.24.0