From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Encode42 <me@encode42.dev>
Date: Wed, 28 Jul 2021 15:52:32 -0400
Subject: [PATCH] Config to prevent horses from standing with riders

Horses have a chance to stand (rear) when their ambient noise is played.
This can happen while the horse is moving with a rider, which will cause the horse to suddenly stop for a moment.

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 56694c9918ab2e8d0ff5cfda6d60360b0cd16674..c9daf65ce500e29ce8f73d1ec6379fc2e172ae64 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
@@ -396,7 +396,7 @@ public abstract class AbstractHorse extends Animal implements ContainerListener,
     @Nullable
     @Override
     protected SoundEvent getAmbientSound() {
-        if (this.random.nextInt(10) == 0 && !this.isImmobile()) {
+        if (this.random.nextInt(10) == 0 && !this.isImmobile() && !(!this.level.purpurConfig.horseStandWithRider && this.getControllingPassenger() != null)) { // Purpur
             this.stand();
         }
 
diff --git a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
index 37c96672f890b32892ba8eeac25baab714a3d095..1543d6e375246190777e85f1e097e93b187c3edc 100644
--- a/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
+++ b/src/main/java/org/purpurmc/purpur/PurpurWorldConfig.java
@@ -1484,6 +1484,7 @@ public class PurpurWorldConfig {
     public double horseMovementSpeedMax = 0.3375D;
     public int horseBreedingTicks = 6000;
     public boolean horseTakeDamageFromWater = false;
+    public boolean horseStandWithRider = true;
     private void horseSettings() {
         horseRidableInWater = getBoolean("mobs.horse.ridable-in-water", horseRidableInWater);
         if (PurpurConfig.version < 10) {
@@ -1501,6 +1502,7 @@ public class PurpurWorldConfig {
         horseMovementSpeedMax = getDouble("mobs.horse.attributes.movement_speed.max", horseMovementSpeedMax);
         horseBreedingTicks = getInt("mobs.horse.breeding-delay-ticks", horseBreedingTicks);
         horseTakeDamageFromWater = getBoolean("mobs.horse.takes-damage-from-water", horseTakeDamageFromWater);
+        horseStandWithRider = getBoolean("mobs.horse.stand-with-rider", horseStandWithRider);
     }
 
     public boolean huskRidable = false;