extends Node2D

#gets player input vector from player parent, used for rotating the grabNode
var input_vector: Vector2 = Vector2.ZERO
@onready var parentObject: CharacterBody2D = $".."
func player_control_vector():
	return parentObject.input_vector

#handles rotation of grabNode, a node which grabRay and grabLocation is attached to
@onready var grabRay = %grabRay #raycast2D used for detecting objects to pick up
func grab_rotate(inputVector):

	if inputVector != Vector2.ZERO:
		set_rotation(inputVector.angle() - PI/2) #rotates grabbing node

#handles the grabbing nitty gritty
@onready var grabLocation = %grabLocation #where the grabbed object will be teleported to every frame
var isHandEmpty: bool = true
var collider: Object = null
func grab_object():

	if not isHandEmpty : #if player is carrying something, it is moved to player's front
		collider.global_position = grabLocation.global_position

	if Input.is_action_just_pressed("input_left_click"):

		#drops the carried item
		if not isHandEmpty:
			collider.global_position = grabLocation.global_position
			collider.set_collision_layer(256) #somehow puts the object back to their collision layer
			isHandEmpty = true
			unfreezeNextFrame += 1

		#picking up the stuff
		elif isHandEmpty and grabRay.is_colliding():
				collider = grabRay.get_collider(0) #selects first item to collide with ray
				collider.set_collision_layer(9) #makes the object non-colliding
				isHandEmpty = false
				if collider != null:
					collider.freeze = true

func _physics_process(_delta: float) -> void:
	grab_rotate(player_control_vector())
	grab_object()