0030-Better-checking-for-useless-move-packets.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Paul Sauve <paul@technove.co>
Date: Thu, 20 May 2021 12:05:47 -0500
Subject: [PATCH] Better checking for useless move packets


diff --git a/src/main/java/net/minecraft/server/level/ServerEntity.java b/src/main/java/net/minecraft/server/level/ServerEntity.java
index 2358bb1788cfb902bac9b3b7588954af2d2cd823..163f14b4e1ca99d75e5d8e14190f7b91cb58e8f3 100644
--- a/src/main/java/net/minecraft/server/level/ServerEntity.java
+++ b/src/main/java/net/minecraft/server/level/ServerEntity.java
@@ -166,6 +166,7 @@ public class ServerEntity {
                     boolean flag4 = k < -32768L || k > 32767L || l < -32768L || l > 32767L || i1 < -32768L || i1 > 32767L;
 
                     if (!flag4 && this.teleportDelay <= 400 && !this.wasRiding && this.wasOnGround == this.entity.isOnGround() && !(io.papermc.paper.configuration.GlobalConfiguration.get().collisions.sendFullPosForHardCollidingEntities && this.entity.hardCollides())) { // Paper - send full pos for hard colliding entities to prevent collision problems due to desync
+                        if (flag2 || flag3 || this.entity instanceof AbstractArrow) { // Pufferfish
                         if ((!flag2 || !flag3) && !(this.entity instanceof AbstractArrow)) {
                             if (flag2) {
                                 packet1 = new ClientboundMoveEntityPacket.Pos(this.entity.getId(), (short) ((int) k), (short) ((int) l), (short) ((int) i1), this.entity.isOnGround());
@@ -175,6 +176,7 @@ public class ServerEntity {
                         } else {
                             packet1 = new ClientboundMoveEntityPacket.PosRot(this.entity.getId(), (short) ((int) k), (short) ((int) l), (short) ((int) i1), (byte) i, (byte) j, this.entity.isOnGround());
                         }
+                        } // Pufferfish
                     } else {
                         this.wasOnGround = this.entity.isOnGround();
                         this.teleportDelay = 0;