## TeaPot — tap to pour: tilts 45 degrees, holds briefly, then returns to upright.
class_name TeaPot extends Node2D

enum State { IDLE, POURING }

const TILT_ANGLE: float = 45.0
const TILT_DURATION: float = 0.4
const POUR_HOLD: float = 0.8
const RETURN_DURATION: float = 0.4
const BUTTON_HALF_SIZE: float = 40.0

var _state: State = State.IDLE


func _input(event: InputEvent) -> void:
	if _state != State.IDLE:
		return
	if not event is InputEventScreenTouch:
		return
	var touch: InputEventScreenTouch = event as InputEventScreenTouch
	if not touch.pressed:
		return
	var local: Vector2 = to_local(touch.position)
	if abs(local.x) > BUTTON_HALF_SIZE or abs(local.y) > BUTTON_HALF_SIZE:
		return
	_start_pouring()


func _start_pouring() -> void:
	_state = State.POURING
	var tween: Tween = create_tween()
	tween.set_ease(Tween.EASE_IN_OUT)
	tween.set_trans(Tween.TRANS_SINE)
	tween.tween_property(self, "rotation_degrees", TILT_ANGLE, TILT_DURATION)
	tween.tween_interval(POUR_HOLD)
	tween.tween_property(self, "rotation_degrees", 0.0, RETURN_DURATION)
	tween.finished.connect(func() -> void: _state = State.IDLE)