From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martijn Muijsers <martijnmuijsers@live.nl>
Date: Wed, 30 Nov 2022 14:25:58 +0100
Subject: [PATCH] Skip entity move if movement is zero

License: MIT (https://opensource.org/licenses/MIT)
Gale - https://galemc.org

This patch is based on the following mixin:
"com/ishland/vmp/mixins/entity/move_zero_velocity/MixinEntity.java"
By: ishland <ishlandmc@yeah.net>
As part of: VMP (https://github.com/RelativityMC/VMP-fabric)
Licensed under: MIT (https://opensource.org/licenses/MIT)

diff --git a/src/main/java/net/minecraft/world/entity/Entity.java b/src/main/java/net/minecraft/world/entity/Entity.java
index 2a2e66449e816494a6c52cb771c63f60220e82fc..d6526c075bc82ae2d79e3e786bc469966f4cf92d 100644
--- a/src/main/java/net/minecraft/world/entity/Entity.java
+++ b/src/main/java/net/minecraft/world/entity/Entity.java
@@ -299,6 +299,7 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
     public float yRotO;
     public float xRotO;
     private AABB bb;
+    private boolean boundingBoxChanged = false; // Gale - VMP - skip entity move if movement is zero
     public boolean onGround;
     public boolean horizontalCollision;
     public boolean verticalCollision;
@@ -1023,6 +1024,11 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
     // Paper end - detailed watchdog information
 
     public void move(MoverType movementType, Vec3 movement) {
+        // Gale start - VMP - skip entity move if movement is zero
+        if (!this.boundingBoxChanged && movement.equals(Vec3.ZERO)) {
+            return;
+        }
+        // Gale end - VMP - skip entity move if movement is zero
         // Paper start - detailed watchdog information
         io.papermc.paper.util.TickThread.ensureTickThread("Cannot move an entity off-main");
         synchronized (this.posLock) {
@@ -3758,6 +3764,11 @@ public abstract class Entity implements Nameable, EntityAccess, CommandSource {
     }
 
     public final void setBoundingBox(AABB boundingBox) {
+        // Gale start - VMP - skip entity move if movement is zero
+        if (!this.bb.equals(boundingBox)) {
+            this.boundingBoxChanged = true;
+        }
+        // Gale end - VMP - skip entity move if movement is zero
         // CraftBukkit start - block invalid bounding boxes
         double minX = boundingBox.minX,
                 minY = boundingBox.minY,