Cena bola pong

parent é um kinematicbody2d
collisionshape2d - capsule e radius 25 com height 0
sprite - texture bola com scale 0.1, 0.1
visibility notifier 2d - default no meio da bola e com sinal conectado no código

//código
extends KinematicBody2D

var init_pos = Vector2.ZERO

export var speed := 300
export var speed_increment := 15

var velocity
var dir = Vector2.ZERO

var collision


func _ready() -> void:
    init_pos = get_global_position()
    print(init_pos)

    while dir.y == 0:
        dir.y = round(rand_range(-10, 10) / 10)
    while dir.x == 0:
        dir.x = round(rand_range(-10, 10) / 10)

    dir = dir.normalized()


func _physics_process(delta: float) -> void:
    velocity = speed * dir
    collision = move_and_collide(velocity * delta)

    if collision:
        var collider = collision.collider

        if collider.name.find("wall") != -1:
            dir.y *= -1
        elif collider.name.find("player") != -1:
            dir.x *= -1

            if dir.y == 0:
                dir.y = round(rand_range(-10, 10) / 10)

            speed += speed_increment


func _on_VisibilityNotifier2D_screen_exited() -> void:
    position = init_pos