extends Area2D
@onready var Cursor = $Cursor
@export var ShowMouse = false
var old_mouse_pos = Vector2.ZERO
var mouse_velocity = Vector2.ZERO
@export var vector_length = Vector2(500,0)
@export var vector_width = 5

var line_2d : Line2D
var is_touchingCube = false
var collision_normal = Vector2.ZERO
var collision_point = Vector2.ZERO


#var speed = 5000.0


# Called when the node enters the scene tree for the first time.
func _ready() -> void:

	#show/hide mouse
	if not ShowMouse:
		Input.mouse_mode = Input.MOUSE_MODE_HIDDEN
	old_mouse_pos = get_viewport().get_mouse_position()
	pass # Replace with function body.
	
	
	#setup line & properties
	line_2d = $Line2D
	
	line_2d.width = vector_width
	line_2d.default_color = Color(Color.RED)
	line_2d.clear_points()
	
	
	


# Called every frame. 'delta' is the elapsed time since the previous frame.
func _process(delta: float) -> void:
	if is_touchingCube:
		draw_vector()
	else:
		line_2d.clear_points()
	
	
	var current_mouse_pos = get_viewport().get_mouse_position()
	
	mouse_velocity = current_mouse_pos - old_mouse_pos
	
	if mouse_velocity.length_squared()>0.1:
		rotation = lerp_angle(rotation, mouse_velocity.angle(), 80 * delta)

		
	var direction_to_mouse = (current_mouse_pos - global_position).normalized()
	global_position = current_mouse_pos
	
	old_mouse_pos = current_mouse_pos
	pass


func _on_area_entered(area: Area2D) -> void:
	print("AAAA " + str(area.name))
	if area.name == "Node2D":
		
		is_touchingCube = true
		draw_vector()
	
	
	pass # Replace with function body.


func _on_area_exited(area: Area2D) -> void:

	
	if area.name == "Node2D":
		
		is_touchingCube = false
	
	pass # Replace with function body.
	
	
	
	
func draw_vector():
	var vector_direction = Vector2().rotated(rotation)
	var start_point = line_2d.to_local(global_position)
	var end_point = line_2d.to_local(global_position + vector_direction + vector_length)
	
	
	
	line_2d.add_point(start_point,1)
	line_2d.add_point(end_point,2)
	
	print("Draws the vector")
	pass