grunk/src/player/interact_ray.gd

extends RayCast3D
## Component for interacting with Interactive things.

var _selected: Object

@onready var parent := owner as Player


func _deselect() -> void:
	if _selected and is_instance_valid(_selected):
		_selected.emit_signal(Interactive.DESELECT_SIGNAL)
	_selected = null


func _process(_delta: float) -> void:
	var collider := self.get_collider()
	if not collider:
		_deselect()
		return

	if collider.has_user_signal(Interactive.SELECT_SIGNAL):
		if collider != _selected:
			if not _selected and is_instance_valid(_selected):
				_selected.emit_signal(Interactive.DESELECT_SIGNAL)
			_selected = collider
			collider.emit_signal(Interactive.SELECT_SIGNAL)
	else:
		_deselect()

	if (
		parent.activity_enabled
		and Input.is_action_just_pressed("interact")
		and collider.has_user_signal(Interactive.ACTIVATE_SIGNAL)
	):
		collider.emit_signal(Interactive.ACTIVATE_SIGNAL)