extends Node2D

signal liberated

@export var n_plant_needed: int

var is_liberated := false
var current_plants := 0

func _on_area_2d_area_entered(area: Area2D) -> void:
	var plant = area.get_parent()
	if plant is Plant and not liberated:
		plant.grown.connect(tracked_plant_grew)
		plant.died.connect()

func tracked_plant_grew():
	if liberated:
		return
	current_plants += 1
	if current_plants == n_plant_needed:
		liberate()

func tracked_plant_died():
	if liberated:
		return
	current_plants -= 1

func liberate():
	is_liberated = true
	print("Liberated !!")
	liberated.emit()