refactor structure

scenes/ui/MainMenu.tscn

@@ -0,0 +1,42 @@
+[gd_scene load_steps=2 format=3 uid="uid://m8lf3eh3al5j"]
+
+[ext_resource type="Script" uid="uid://ctu58xq7btp1n" path="res://scenes/ui/MainMenu.gd" id="1_b00nv"]
+
+[node name="MainMenu" type="Control"]
+layout_mode = 3
+anchors_preset = 15
+anchor_right = 1.0
+anchor_bottom = 1.0
+grow_horizontal = 2
+grow_vertical = 2
+script = ExtResource("1_b00nv")
+
+[node name="MenuContainer" type="VBoxContainer" parent="."]
+layout_mode = 1
+anchors_preset = 8
+anchor_left = 0.5
+anchor_top = 0.5
+anchor_right = 0.5
+anchor_bottom = 0.5
+offset_left = -20.0
+offset_top = -20.0
+offset_right = 20.0
+offset_bottom = 20.0
+grow_horizontal = 2
+grow_vertical = 2
+
+[node name="NewGameButton" type="Button" parent="MenuContainer"]
+layout_mode = 2
+text = "New Game"
+
+[node name="SettingsButton" type="Button" parent="MenuContainer"]
+layout_mode = 2
+text = "Settings"
+
+[node name="ExitButton" type="Button" parent="MenuContainer"]
+layout_mode = 2
+text = "Exit"
+
+[connection signal="pressed" from="MenuContainer/NewGameButton" to="." method="_on_new_game_button_pressed"]
+[connection signal="pressed" from="MenuContainer/SettingsButton" to="." method="_on_settings_button_pressed"]
+[connection signal="pressed" from="MenuContainer/ExitButton" to="." method="_on_exit_button_pressed"]