Why does my RigidBody2D not pick up at the place I set it at?

Question

I have a script that once a player picks up a RigidBody2D, it will pick it up and follow the mouse. However, Once I let go, the sprite doesn't move and the Collision stays at the place it originally landed. Once I click in the place it landed, the sprite moves back. It is currently in 'Rigid' mode.

Here's the gif:https://gyazo.com/77eb831c1cde39fb304927e07a50ff55

Here's the code:

extends RigidBody2D


# Variables that make it work
onready var spawner = get_node("/root/Scene/Player/Spawner")
onready var canDrag = false

# Stats
var massOutput = get_mass()
var weightOutput = get_weight()

func _ready():
    pass



func _physics_process(delta):

    #var canGrab = mouse_checker_node.is_free

    if (Input.is_action_pressed("ui_grabItem") && canDrag == true):
        var mousePos = get_global_mouse_position()

        self.set_position(mousePos)

    elif (Input.is_action_just_released("ui_grabItem")):
        canDrag = false

func _on_Item_mouse_entered():
    canDrag = true


#func _on_Item_mouse_exited():
#   canDrag = false

Answer 1

Haven't tried it yet in 3.0, but to gracefully move a RigidBody2D, you have to put it to sleep, defer for one frame, then move it and reawaken it.

set_sleeping(true)
call_deferred("move_to", pos)


func move_to(pos):
    set_position(pos)
    set_sleeping(false)

Comments

It didn't fix it, but that might be because of my lousy programming knowledge, care to take a look?

extends RigidBody2D


# Variables that make it work
onready var spawner = get_node("/root/Scene/Player/Spawner")
onready var canDrag = false
onready var mPos = get_local_mouse_position()

# Stats
var massOutput = get_mass()
var weightOutput = get_weight()

func _ready():
    pass


func _physics_process(delta):


    #var canGrab = mouse_checker_node.is_free

    if (Input.is_action_pressed("ui_grabItem") && canDrag == true):
        var mousePos = get_global_mouse_position()

        self.set_position(mousePos)

    elif (Input.is_action_just_released("ui_grabItem")):
        canDrag = false

func _on_Item_mouse_entered():
    canDrag = true




func move_to(mPos):
    set_sleeping(true)
    call_deferred("move_to", mPos)

    set_position(mPos)
    set_sleeping(false)

#func _on_Item_mouse_exited():
#   canDrag = false

---

Sorry, I omitted some context to focus on the specific lines.

You want to use it like this (Edited for better context):

func move(mousePos):
    set_sleeping(true)
    call_deferred("move_to", mousePos)


func move_to(mPos):
    set_position(mPos)
    set_sleeping(false)

---

I can't pick it up still... Samme result in gif

---

Sorry, bad context once again, I'm just trying to show the idea, but slapped it mindlessly into your "drag" code.

The logic/algorithm for using this with dragging:

1. Sleep the body for 1 frame before the first move takes place.
2. After one frame of sleeping issue position changes normally.
3. When the drag is released, unsleep the node.

Hope that helps.