extends "res://objects/enemy/enemy.gd"

export var speed = 0.0
export var direction = 1.0

onready var line = $Line2D
onready var hitbox = $Hitbox

export var up_boundary = 0
export var down_boundary = 0

#var floor_y = 0.0

func _ready():
	down_boundary = max(5.0, hitbox.position.y + down_boundary * 8.0)
	up_boundary = max(5.0, hitbox.position.y - up_boundary * 8.0)
	
	var raycast = $RayCast2D
	# detect ceiling
	raycast.force_raycast_update()
	var old_y = hitbox.global_position.y
	global_position.y = raycast.get_collision_point().y
	hitbox.global_position.y = old_y
	line.points[1].y = hitbox.position.y
	raycast.queue_free()
	#Easy mode
	if Game.is_easy_mode:
		speed *= Game.easy_mode_speed_factor

func _physics_process(delta):
	hitbox.position.y += direction * speed * delta
	if hitbox.position.y < up_boundary:
		hitbox.position.y = up_boundary
		direction = 1.0
	if hitbox.position.y > down_boundary:
		hitbox.position.y = down_boundary
		direction = -1.0
	line.points[1].y = hitbox.position.y
	death_blood_offset = hitbox.position