"Implement" "chat"

apps/amethyst/lib/states/play.ex

@@ -135,6 +135,10 @@ defmodule Amethyst.ConnectionState.Play do
   Macros.defpacket_clientbound :set_center_chunk, 0x54, 767, [
     chunk_x: :varint, chunk_z: :varint
   ]
+  Macros.defpacket_clientbound :system_chat_message, 0x6C, 767, [
+    content: :nbt,
+    overlay: :bool
+  ]
 
   Macros.defpacket_clientbound :game_event, 0x22, 767, [
     event: :ubyte, value: :float

apps/example_game/lib/example/game.ex

@@ -5,6 +5,8 @@ defmodule Example.Game do
   @moduledoc """
   Example game used for testing Amethyst.
   """
+require Amethyst.NBT.Write
+alias Amethyst.NBT
 
   @impl true
   def instantiate(supervisor) do
@@ -42,6 +44,11 @@ defmodule Example.Game do
   @impl true
   def chat(from, message, _state_refs) do
     Logger.info("Player at #{inspect(from)} said: #{inspect(message)}")
+    send(from, {:send_packet, %{
+      packet_type: :system_chat_message,
+      content: NBT.Write.compound(%{"text" => NBT.Write.string("You said: #{message}")}),
+      overlay: false
+    }})
     :ok
   end