From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Martijn Muijsers <martijnmuijsers@live.nl>
Date: Fri, 23 Dec 2022 20:42:50 +0100
Subject: [PATCH] Reduce block destruction packet allocations

License: GPL-3.0 (https://www.gnu.org/licenses/gpl-3.0.html)
Gale - https://galemc.org

This patch is based on the following patch:
"Cache block break animation packet"
By: VytskaLT <VytskaLT@protonmail.com>
As part of: SportPaper (https://github.com/Electroid/SportPaper)
Licensed under: GPL-3.0 (https://www.gnu.org/licenses/gpl-3.0.html)

diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 9879599c38db4f3332c347b6b0c26034bc7749bc..1462f9d4f2cdf4071fb002d602783866a5a3d285 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1695,7 +1695,17 @@ public class ServerLevel extends Level implements WorldGenLevel {
 
     @Override
     public void destroyBlockProgress(int entityId, BlockPos pos, int progress) {
-        Iterator iterator = this.server.getPlayerList().getPlayers().iterator();
+
+        // Gale start - SportPaper - reduce block destruction packet allocations
+        var players = this.server.getPlayerList().getPlayers();
+        if (players.isEmpty()) {
+            return;
+        }
+
+        ClientboundBlockDestructionPacket packet = new ClientboundBlockDestructionPacket(entityId, pos, progress);
+
+        Iterator iterator = players.iterator();
+        // Gale end - SportPaper - reduce block destruction packet allocations
 
         // CraftBukkit start
         Player entityhuman = null;
@@ -1718,7 +1728,7 @@ public class ServerLevel extends Level implements WorldGenLevel {
                 // CraftBukkit end
 
                 if (d0 * d0 + d1 * d1 + d2 * d2 < 1024.0D) {
-                    entityplayer.connection.send(new ClientboundBlockDestructionPacket(entityId, pos, progress));
+                    entityplayer.connection.send(packet); // Gale - SportPaper - reduce block destruction packet allocations
                 }
             }
         }