# Enemy.gd
# Steuert den Gegner: KI-Bewegung zum Spieler, Angriff, HP, Zielanzeige
extends CharacterBody3D

const SPEED = 3.0
const GRAVITY = 9.8
const ATTACK_DAMAGE = 5
const ATTACK_RANGE = 1.5
const ATTACK_COOLDOWN = 2.0

var max_hp = 50
var current_hp = 50
var target = null  # Ziel des Gegners (normalerweise der Spieler)
var can_attack = true

@onready var health_label = $HealthLabel

func _ready():
	health_label.visible = false
	_update_label()

# HP-Label Text aktualisieren
func _update_label():
	health_label.text = str(current_hp) + " / " + str(max_hp)

# HP-Label anzeigen (wenn Gegner markiert wird)
func show_health():
	health_label.visible = true

# HP-Label verstecken (wenn Markierung aufgehoben wird)
func hide_health():
	health_label.visible = false

# Schaden nehmen und Label aktualisieren
func take_damage(amount):
	current_hp -= amount
	_update_label()
	if current_hp <= 0:
		die()

# Gegner aus der Szene entfernen
func die():
	print("Gegner besiegt!")
	queue_free()

func _physics_process(delta):
	if not is_on_floor():
		velocity.y -= GRAVITY * delta

	if target == null:
		move_and_slide()
		return

	var distance = global_position.distance_to(target.global_position)

	if distance <= ATTACK_RANGE:
		# In Reichweite: angreifen
		velocity.x = 0
		velocity.z = 0
		if can_attack:
			_attack()
	else:
		# Direkt auf Ziel zubewegen
		var direction = (target.global_position - global_position)
		direction.y = 0
		direction = direction.normalized()
		velocity.x = direction.x * SPEED
		velocity.z = direction.z * SPEED
		look_at(Vector3(target.global_position.x, global_position.y, target.global_position.z))

	move_and_slide()

# Angriff mit Cooldown
func _attack():
	can_attack = false
	target.take_damage(ATTACK_DAMAGE)
	print("Gegner greift an!")
	await get_tree().create_timer(ATTACK_COOLDOWN).timeout
	can_attack = true