From 2268cb995d77f8c4ffaa028af52253f5b69dd3ef Mon Sep 17 00:00:00 2001
From: teatov <hlebpoimenigleb@gmail.com>
Date: Sat, 15 Feb 2025 00:07:49 +1000
Subject: [PATCH] add chat history

---
 scripts/ui/chat.gd | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/scripts/ui/chat.gd b/scripts/ui/chat.gd
index d4d588a..860fed9 100644
--- a/scripts/ui/chat.gd
+++ b/scripts/ui/chat.gd
@@ -3,6 +3,9 @@ extends Menu
 
 var _chat_message_scene := preload("res://scenes/ui/chat_message.tscn")
 
+var _message_history: PackedStringArray = []
+var _history_position: int = 0
+
 @onready var _msg_scroll: ScrollContainer = $MsgMargin/MsgVBox/MsgScroll
 @onready
 var _msg_container: Container = $MsgMargin/MsgVBox/MsgScroll/MsgMargin/MsgContainer
@@ -25,6 +28,18 @@ func _input(event: InputEvent) -> void:
 	if event.is_action_pressed("menu"):
 		call_deferred("close")
 
+	if _message_edit.has_focus():
+		if (
+			event.is_action_pressed("ui_up")
+			and _history_position + 1 <= _message_history.size()
+		):
+			_history_position += 1
+			_set_message_from_history()
+
+		if event.is_action_pressed("ui_down") and _history_position - 1 >= 0:
+			_history_position -= 1
+			_set_message_from_history()
+
 
 func _unhandled_input(event: InputEvent) -> void:
 	if event.is_action_pressed("chat") and not is_open:
@@ -62,10 +77,21 @@ func _make_message_node(player_name: String, message: String) -> RichTextLabel:
 	return node
 
 
+func _set_message_from_history() -> void:
+	if _history_position > 0:
+		var message := _message_history[-_history_position]
+		_message_edit.text = message
+	else:
+		_message_edit.text = ""
+
+
 func _on_message_edit_text_submitted(message: String) -> void:
 	if _message_edit.text == "":
 		return
 	_message_edit.text = ""
+	if not (message in _message_history):
+		_message_history.append(message)
+	_history_position = 0
 	close()
 	_send_message.rpc(message)