## NavigationArrow — tappable button that navigates camera to a specific floor and room.
class_name NavigationArrow extends Node2D

const BUTTON_HALF_SIZE: float = 48.0

@export var target_floor: int = 0
@export var target_room: int = 0
@export var label_text: String = "→"


func _ready() -> void:
	var label: Label = get_node_or_null("Label") as Label
	if label != null:
		label.text = label_text


func _input(event: InputEvent) -> void:
	var screen_pos: Vector2
	if event is InputEventScreenTouch and event.pressed:
		screen_pos = event.position
	elif event is InputEventMouseButton and event.pressed and event.button_index == MOUSE_BUTTON_LEFT:
		screen_pos = event.position
	else:
		return
	var canvas_transform: Transform2D = get_viewport().get_canvas_transform()
	var world_pos: Vector2 = canvas_transform.affine_inverse() * screen_pos
	var local_pos: Vector2 = to_local(world_pos)
	if abs(local_pos.x) <= BUTTON_HALF_SIZE and abs(local_pos.y) <= BUTTON_HALF_SIZE:
		_on_pressed()


func _on_pressed() -> void:
	RoomNavigator.go_to_room(target_floor, target_room)
	_play_bounce()


func _play_bounce() -> void:
	var tween: Tween = create_tween()
	tween.tween_property(self, "scale", Vector2(1.15, 1.15), 0.08)
	tween.tween_property(self, "scale", Vector2(1.0, 1.0), 0.08)