Help with Scene Changing

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:bust_in_silhouette: Asked By NABL

I asked this question before and got some helpful answers. Unfortunately it is still not working–and I don’t have an error message, the player just passes right through the Sprite. Here is the code as it looks now:

extends Sprite

func on_body_entered(area: KinematicBody2D) -> void:
    if area.is_in_group("Player"):
        get_tree().change_scene("res://Level_2")

And, this is the script for my Player (in case this helps solve the problem):

    extends KinematicBody2D

var run_speed = 400
var jump_speed = -1100
var gravity = 2000

var velocity = Vector2()

export (int) var speed = 200




func get_input():
    velocity.x = 0
    var right = Input.is_action_pressed('right')
    var left = Input.is_action_pressed('left')
    var jump = Input.is_action_just_pressed('jump')



    if is_on_floor() and jump:
        velocity.y = jump_speed
    if right:
        velocity.x += run_speed
    if left:
        velocity.x -= run_speed

func _physics_process(delta):
    velocity.y += gravity * delta
    get_input()
    velocity = move_and_slide(velocity, Vector2(0, -1))

I used a signal to link the on_body_entered and connected it to my Sprite. Not sure if I connected it correctly.

The scene tree is set up as (again not sure if this is helpful):

Level1
–BackgroundLevel1
–TileMap
–Player
------Camera2D2
------The Wizard
------CollisionPolygon2D
–Level_Changer
------Hitbox
----------CollisionShape2D

  1. What type of node is Level_Changer and Hitbox?
  2. Have you made sure the body entering the area is in the player group?
  3. Try printing something under on_body_entered to determined whether this function is actually getting called, or whether there is an issue with the scene change.
  4. Have you connected the Area2D signal to the function which is supposed to change the scene?

psear | 2021-01-24 19:41

Did you put get_tree().change_scene("res://Level_2") in your code?
Maybe the problem is that your scene’s name probably is res://Level_2.tscn

yyyyk | 2021-01-24 19:55

Thank you for your response.

  1. Level_Changer is a Sprite, and Hitbox is an Area 2D.

  2. The body entering the are is in the player group.

  3. I tried printing it but nothing appeared, but this error message appears in the debugger.

E 0:00:04.138 emit_signal: Error calling method from signal ‘body_entered’: ‘Sprite(Next_Level.gd)::_on_Hitbox_body_entered’: Method not found…
<C++ Source> core/object.cpp:1260 @ emit_signal()

  1. I connected the Area2D signal to the function that changes the scene, and the signal icon appears.

Any advice on that error?
thank you!!

NABL | 2021-01-24 20:02

Yes, thank you–I tried both get_tree().change_scene("res://Level_2.tscn") and without the .tscn in my code. Not sure if that is what you meant but it didn’t work. Thanks anyway.

NABL | 2021-01-24 20:08

Do you still get the error after connecting the right signal to the right function?
Just point out, the error says it couldn’t call on_hitbox_body_entered, because the method isn’t found. The function in your code is called on_body_entered. That might be the source of one issue.

Double check the docs on how to properly connect signals in the gui, that might also help.

psear | 2021-01-24 22:58