class_name Weapon
extends Node3D

@export var def: WeaponDef

var shooter: PhysicsBody3D # Resolved in _ready(): nearest ancestor body

var _cooldown := 0.0

@onready var _muzzle: Marker3D = %Muzzle

func _ready() -> void:
	# Fallback: nearest ancestor body is the shooter (hand-placed weapons).
	var n := get_parent()
	while shooter == null and n != null:
		shooter = n as PhysicsBody3D
		n = n.get_parent()

func _physics_process(delta: float) -> void:
	_cooldown = maxf(_cooldown - delta, 0.0)

func try_fire() -> bool:
	if _cooldown > 0.0 or def == null or def.ammo == null:
		return false
	_cooldown = def.fire_interval
	var p: Projectile = def.ammo.projectile_scene.instantiate()
	get_tree().current_scene.add_child(p)
	if shooter != null:
		p.add_collision_exception_with(shooter)
	p.launch(def.ammo, _muzzle.global_transform, def.muzzle_speed_scale)
	return true