Some code organization

game/menu/main/credits.gd

@@ -0,0 +1,49 @@
+extends Control
+
+
+signal back
+
+
+@export var scroll_speed: float = 25.0
+
+
+@onready var main_menu_button := $BackButton
+@onready var text := $Text
+@onready var tween: Tween
+
+
+func _ready() -> void:
+	main_menu_button.grab_focus()
+
+
+func _on_visibility_changed() -> void:
+	if not is_node_ready(): return
+	if not visible: return
+	
+	main_menu_button.grab_focus()
+	
+	_start_scrolling()
+
+
+func _start_scrolling() -> void:
+	var start_pos := Vector2(0, get_viewport_rect().size.y)
+	var end_pos := Vector2(0, -text.size.y)
+	var duration := (start_pos.y - end_pos.y) / scroll_speed
+	
+	text.position = start_pos
+	
+	tween = create_tween()
+	tween.tween_property(text, "position:y", end_pos.y, duration)
+	tween.finished.connect(_on_scroll_finished)
+
+
+func _on_back_button_pressed() -> void:
+	if tween:
+		tween.kill()
+	
+	SoundManager.play_ui_stream(SoundManager.ui_stream_decline)
+	back.emit()
+
+
+func _on_scroll_finished() -> void:
+	back.emit()