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 237e01d4c7aa632e75c54c0f4eb55d9d01938083..ad773412b61c9773f88f493788287d51dd803ce0 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -2089,6 +2089,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
     private void handleChat(TextFilter.FilteredText message) {
         if (this.player.isRemoved() || this.player.getChatVisibility() == ChatVisiblity.HIDDEN) { // CraftBukkit - dead men tell no tales
             this.send(new ClientboundChatPacket((new TranslatableComponent("chat.disabled.options")).withStyle(ChatFormatting.RED), ChatType.SYSTEM, Util.NIL_UUID));
+        } else if (!player.didPlayerJoinEvent) { return; // EMC - do not handle chat messages before they joined
         } else {
             this.player.resetLastActionTime();
             String s = message.getRaw();