Shiroha/shiroha-server/minecraft-patches/features/0013-Fix-riding-statistics-desync.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: MrHua269 <mrhua269@gmail.com>
Date: Wed, 8 Jul 2026 21:20:44 +0800
Subject: [PATCH] Fix riding statistics desync

Referred to: https://github.com/CraftCanvasMC/Canvas/commit/057175b0c10d5a4d1d9059fd9d077750c32633b2

diff --git a/net/minecraft/server/level/ServerPlayer.java b/net/minecraft/server/level/ServerPlayer.java
index e66cfcaa92b90f6b0fd26fd3cec1a5cdbb025117..b08af3a31b80125d02a4f2ff85311d2f9fdcc0ae 100644
--- a/net/minecraft/server/level/ServerPlayer.java
+++ b/net/minecraft/server/level/ServerPlayer.java
@@ -2537,7 +2537,7 @@ public class ServerPlayer extends Player implements ca.spottedleaf.moonrise.patc
         }
     }
 
-    private void checkRidingStatistics(final double dx, final double dy, final double dz) {
+    public void checkRidingStatistics(final double dx, final double dy, final double dz) { // Shiroha - Fix riding statics desync - make public
         if (this.isPassenger() && !didNotMove(dx, dy, dz)) {
             int distance = Math.round((float)Math.sqrt(dx * dx + dy * dy + dz * dz) * 100.0F);
             Entity vehicle = this.getVehicle();
diff --git a/net/minecraft/world/entity/Entity.java b/net/minecraft/world/entity/Entity.java
index bc26de6e58d9d315122c7f8721ab30490f382c18..7b8f88ed956b65bf7accfcfa57df4b51d8876ecd 100644
--- a/net/minecraft/world/entity/Entity.java
+++ b/net/minecraft/world/entity/Entity.java
@@ -4199,7 +4199,13 @@ public abstract class Entity
             }
         }
 
+        // Shiroha start  - Fix riding statics desync
         public void adjustRiders(boolean teleport) {
+            this.adjustRiders(teleport, false);
+        }
+
+        public void adjustRiders(boolean teleport, boolean syncStatics) {
+        // Shiroha end - Fix riding statics desync
             java.util.ArrayDeque<EntityTreeNode> queue = new java.util.ArrayDeque<>();
             queue.add(this);
 
@@ -4212,14 +4218,24 @@ public abstract class Entity
 
                 for (EntityTreeNode passenger : passengers) {
                     queue.add(passenger);
+                    // Shiroha start  - Fix riding statics desync
+                    final double oldX = passenger.root.getX();
+                    final double oldY = passenger.root.getY();
+                    final double oldZ = passenger.root.getZ();
+                    // Shiroha end - Fix riding statics desync
                     curr.root.positionRider(passenger.root, teleport ? Entity::snapTo : Entity::setPos);
+                    // Shiroha start  - Fix riding statics desync
+                    if (syncStatics && passenger.root instanceof net.minecraft.server.level.ServerPlayer serverPlayer) {
+                        serverPlayer.checkRidingStatistics(serverPlayer.getX() - oldX, serverPlayer.getY() - oldY, serverPlayer.getZ() - oldZ);
+                    }
+                    // Shiroha end - Fix riding statics desync
                 }
             }
         }
     }
 
     public void repositionAllPassengers(boolean teleport) {
-        this.makePassengerTree().adjustRiders(teleport);
+        this.makePassengerTree().adjustRiders(teleport, true); // Shiroha - Fix riding statics desync
     }
 
     protected EntityTreeNode makePassengerTree() {