From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: violetc <58360096+s-yh-china@users.noreply.github.com>
Date: Thu, 20 Jul 2023 21:13:28 +0800
Subject: [PATCH] Skip entity move if movement is zero

This patch is Powered by Gale(https://github.com/GaleMC/Gale)

diff --git a/net/minecraft/world/entity/Entity.java b/net/minecraft/world/entity/Entity.java
index 2170020f55abc47d489838f98a7d67bcef2a33a0..6cf6e63d5c298b61d6cbb03c085530ca290ca57e 100644
--- a/net/minecraft/world/entity/Entity.java
+++ b/net/minecraft/world/entity/Entity.java
@@ -262,6 +262,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
     public float yRotO;
     public float xRotO;
     private AABB bb = INITIAL_AABB;
+    private boolean boundingBoxChanged = false; // Leaves - skip entity move if movement is zero
     public boolean onGround;
     public boolean horizontalCollision;
     public boolean verticalCollision;
@@ -1094,6 +1095,13 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
     // Paper end - detailed watchdog information
 
     public void move(MoverType type, Vec3 movement) {
+        // Leaves start - skip entity move if movement is zero
+        if (org.leavesmc.leaves.LeavesConfig.performance.skipEntityMoveIfMovementIsZero) {
+            if (!this.boundingBoxChanged && movement.equals(Vec3.ZERO)) {
+                return;
+            }
+        }
+        // Leaves end - skip entity move if movement is zero
         final Vec3 originalMovement = movement; // Paper - Expose pre-collision velocity
         // Paper start - detailed watchdog information
         ca.spottedleaf.moonrise.common.util.TickThread.ensureTickThread("Cannot move an entity off-main");
@@ -4421,6 +4429,7 @@ public abstract class Entity implements SyncedDataHolder, Nameable, EntityAccess
     }
 
     public final void setBoundingBox(AABB bb) {
+        if (!this.bb.equals(bb)) this.boundingBoxChanged = true; // Leaves - skip entity move if movement is zero
         // CraftBukkit start - block invalid bounding boxes
         double minX = bb.minX,
                 minY = bb.minY,