Yatopia/patches/server/0013-Purpur-Skip-events-if-there-s-no-listeners.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: William Blake Galbreath <Blake.Galbreath@GMail.com>
Date: Sat, 4 Apr 2020 03:07:59 -0500
Subject: [PATCH] Purpur Skip events if there's no listeners


diff --git a/src/main/java/net/minecraft/server/CommandDispatcher.java b/src/main/java/net/minecraft/server/CommandDispatcher.java
index e59151d01b4710b750366a395e1e5d18caa4726f..4ace0e79c9c0110c794a345fb27203b566b4788b 100644
--- a/src/main/java/net/minecraft/server/CommandDispatcher.java
+++ b/src/main/java/net/minecraft/server/CommandDispatcher.java
@@ -275,6 +275,7 @@ public class CommandDispatcher {
     }
 
     private void runSync(EntityPlayer entityplayer, Collection<String> bukkit, RootCommandNode<ICompletionProvider> rootcommandnode) {
+        if (PlayerCommandSendEvent.getHandlerList().getRegisteredListeners().length > 0) { // Purpur - skip all this crap if there's nothing listening
         // Paper end - Async command map building
         new com.destroystokyo.paper.event.brigadier.AsyncPlayerSendCommandsEvent<CommandListenerWrapper>(entityplayer.getBukkitEntity(), (RootCommandNode) rootcommandnode, false).callEvent(); // Paper
         PlayerCommandSendEvent event = new PlayerCommandSendEvent(entityplayer.getBukkitEntity(), new LinkedHashSet<>(bukkit));
@@ -287,6 +288,7 @@ public class CommandDispatcher {
             }
         }
         // CraftBukkit end
+        } // Purpur - skip event
         entityplayer.playerConnection.sendPacket(new PacketPlayOutCommands(rootcommandnode));
     }