class_name HealthComponent
extends Node

signal value_changed
signal death

const DEATH_THRESHOLD = 0.01

@export var max_value: float
var value: float
var is_alive: bool

func _ready():
	restore()

func restore():
	is_alive = true
	value = max_value
	value_changed.emit()

func take_damage(attack: DamageInstance):
	if !is_alive:
		return
	
	value = clampf(value - attack.damage, 0, max_value)
	value_changed.emit()

	if value < DEATH_THRESHOLD:
		is_alive = false
		death.emit()