extends Node

var raycast_queue = []
var blood = preload("res://scenes/decals/blood.tscn")
var blood_decal = preload("res://scenes/decals/blood1-decal.gltf")
var rnd
func _ready():
	var root = get_parent()
	var queue = [root]
	var hurtboxes = []
	while queue.size() > 0:
		var item = queue.pop_front()
		if item is Area && item.name.ends_with("_hurt"):
			hurtboxes.push_back(item)
		for e in item.get_children():
			queue.push_back(e)
	root.set_meta("hurtboxes", hurtboxes)
	for e in hurtboxes:
		e.connect("area_entered", self, "area_hit", [e])
	rnd = RandomNumberGenerator.new()
	rnd.randomize()
func area_hit(area, e):
	if area.is_in_group("weapon_hit"):
		print("HIT")
		var bi = blood.instance()
		var d = area.global_transform.origin.linear_interpolate(e.global_transform.origin, 0.5)
		e.add_child(bi)
		bi.global_transform.origin = d
		bi.emitting = true
		var dcount = 2 + rnd.randi() % 5
		var org = d
		raycast_queue.push_back(d)
		print(dcount)
		for rd in range(dcount):
			var offt = Vector3()
			while offt.length() < 0.05:
				offt += Vector3(rnd.randf() * 0.3, 0, rnd.randf() * 0.3)
			var xoff = offt.normalized() * 0.04
			xoff.y = 0
			offt.y = 0
			org += xoff + offt
			raycast_queue.push_back(org)
		yield(get_tree().create_timer(8), "timeout")
		bi.queue_free()

func _physics_process(delta):
	var root = get_parent()
	var space_state: PhysicsDirectSpaceState = root.get_world().direct_space_state
	var offsets = [Vector3(0, -2, 0)]
	var cam = get_viewport().get_camera()
	if !cam.has_meta("player"):
		return
	var player = cam.get_meta("player")
	while raycast_queue.size() > 0:
		var item = raycast_queue.pop_front()
		var a = item
		for boff in offsets:
			var b = a + boff
			var result = {}
			if root is PhysicsBody:
				result = space_state.intersect_ray(a, b, [root, player])
			else:
				result = space_state.intersect_ray(a, b)
			if result.has("collider"):
				var body = result.collider
				var normal = result.normal
				var position = result.position
				var decal = blood_decal.instance()
				decal.add_to_group("blood")
				body.add_child(decal)
				decal.global_transform.origin = position
				var scale = 0.5 + rnd.randf() * 2.0
				var rot = PI * 2.0 * rnd.randf()
				decal.global_transform.basis = Basis(normal).scaled(Vector3(scale, 1.0, scale)).rotated(normal, rot)