extends Area2D

@export var max_hp : int
@onready var hp = max_hp
@export var hit_invulnerability = 0.2
@export var canvasItem : CanvasItem
@export var flashColor : Color = Color(1.5, 1.5, 1.5)
var inv_time = 0;

signal damage_taken
signal died

func _process(delta: float) -> void:
	inv_time = max(inv_time-delta, 0)
	if(inv_time <= 0 and canvasItem != null):
		canvasItem.modulate = Color(1,1,1)

func hurt(damage : int, dir : Vector2 = Vector2.ZERO):
	if(inv_time<=0):
		if canvasItem != null: canvasItem.modulate = flashColor
		inv_time = hit_invulnerability
		hp = max(hp-damage, 0)
		damage_taken.emit(damage, dir)
		if(hp <= 0):
			die()
		
func die():
	died.emit()

func destroy():
	hurt(9999)