class_name Projectile
extends Area3D

const HEIGHT: float = 1

@export var _collision_debug_material: Material

var _start_position: Vector3
var _velocity: Vector3
var _lifetime: float

var _life_timer: float

var _debug_collision_shapes := DebugCollisionShapes.new()


func _ready() -> void:
	_life_timer = _lifetime
	_debug_collision_shapes.init(get_children(), self, _collision_debug_material)
	global_position = _start_position
	body_entered.connect(_on_body_entered)


func _physics_process(delta: float) -> void:
	if _life_timer <= 0:
		queue_free()

	_life_timer -= delta
	global_position += _velocity * delta


func init(velocity: Vector3, start_position: Vector3, lifetime: float = 10) -> void:
	_velocity = velocity
	_start_position = start_position
	_lifetime = lifetime


func set_velocity(velocity: Vector3) -> void:
	_velocity = velocity
	_life_timer = _lifetime


func _on_body_entered(node: Node3D) -> void:
	if node is Player:
		queue_free()
		return

	print(node)
	if node is CollisionObject3D:
		var collision_node := node as CollisionObject3D
		if collision_node.collision_layer & 1:
			queue_free()
			return

	if node is CSGCombiner3D:
		var collision_node := node as CSGCombiner3D
		if collision_node.collision_layer & 1:
			queue_free()
			return