Basic UI Logic and game state

core/scripts/main_menu.gd

@@ -7,6 +7,7 @@ extends Control
 func _ready():
 	start_button.pressed.connect(_on_start_button_pressed)
 	quit_button.pressed.connect(_on_quit_button_pressed)
+	self.visibility_changed.connect(_on_visibility_changed)
 	start_button.grab_focus()
 
 
@@ -17,3 +18,8 @@ func _on_start_button_pressed():
 
 func _on_quit_button_pressed():
 	get_tree().quit()
+
+
+func _on_visibility_changed() -> void:
+	if visible:
+		start_button.grab_focus()