From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: chickeneer <emcchickeneer@gmail.com>
Date: Tue, 3 Aug 2021 10:39:44 -0500
Subject: [PATCH] Do not process chat/commands before player has joined

Original code by Starlis, licensed under GNU General Public License v3.0
You can find the original code on https://github.com/starlis/empirecraft

diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 2063c92f73a76ee2f070681458a0fc3b5c06e586..214ef186233465d6f4e6567b3565897038acf801 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -2347,6 +2347,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Tic
         } else if (this.player.isRemoved() || this.player.getChatVisibility() == ChatVisiblity.HIDDEN) { // CraftBukkit - dead men tell no tales
             this.send(new ClientboundSystemChatPacket(Component.translatable("chat.disabled.options").withStyle(ChatFormatting.RED), false));
             return false;
+        } else if (!player.didPlayerJoinEvent) { return false; // EMC - do not handle chat messages before they joined
         } else {
             LastSeenMessagesValidator lastseenmessagesvalidator = this.lastSeenMessagesValidator;
             Set set;