I can't seem to get a Drag & Drop build to work.

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:information_source: Attention Topic was automatically imported from the old Question2Answer platform.
:bust_in_silhouette: Asked By SandmanIvan
:warning: Old Version Published before Godot 3 was released.

This problem seems to be a lot harder in concept than it should be.
The Goal:
to have it where in the game the player can use their mouse to click, drag, drop tile pieces.

Nodes:
KinematicBody2D > Sprite & CollisionShape2D

Script: 1 on KinematicBody2D
Pastebin Link to script

With all of this I thought I had it:

  • The program is checking my Mouse Position and able to store it as a Vector2
  • Check if LMB & Cursor are in the same place
  • move an object anywhere.

It slightly does. the problem is the LMB has to be on first before touching the object
and when it does move its only in a small incremental burst in the almost random direction slightly influenced by the mouse movement.

I have no idea where to go from here. If someone has a better idea, a guide, hint or something pleese I could really use it.

Did you set the KinematicBody2D as pickable? Maybe it helps

genete | 2016-05-30 21:51

Yes, I did. I had figured that would be one thing that would show up.
Just in case here is my project folder, it just uses the default icon.
https://drive.google.com/file/d/0B0iEQfbunEIFNVpzVlZEUGkxZUE/view?usp=sharing

SandmanIvan | 2016-05-30 22:01

So on another post, I was given some help.
Changed:

_process  ::  _fixed_process
set_process :: set_fixed_process
self.set_pos(Mpos) :: self.set_global_pos(Mpos)

(I can also just remove self. from that to as its not nesserary)

Unfortunately, this still didn’t help. I took a Gif capture of what the game is doing here:
enter image description here
Want to point out that my Left Mouse Button is held down the whole time to get it to move at all.

SandmanIvan | 2016-05-31 01:09

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:bust_in_silhouette: Reply From: SandmanIvan

Well. I know you guys tried but i had better help on the Reddit page on this. but I will give you what I found.

The major problem with my last code that was causing it was the fact that _on_KinematicBody2D_mouse_enter():can’t be called multiple times. and I was putting the Left Mouse Button var in where I could have just focused on Mouse being in or out of the frame.

I also added one new check in the code to make sure that even if the mouse escapes the hitbox of the object, as long as I am still holding down the Left Mouse Button it means I am still dragging so keep going.

Anyway. here is the new script

5
:bust_in_silhouette: Reply From: genete

Here is a copy of your pastebin for future references. Maybe the link is broken in the future:

extends KinematicBody2D

var Mouse_In = false
var Mpos = get_global_mouse_pos()
var Objectdrag = false
# Mouse_In acts as a check switch for if the mouse has entered the object's hitbox
# Mpos is a simple var to keep check on mouse position, is updated in process
# Objectdrag is an extra var to keep the mouse from dropping the Object if it is still dragging but escapes the objects hitbox
func _ready():
	set_fixed_process(true)

func _fixed_process(delta):
	Mpos = get_global_mouse_pos()
#Updates the Mpos on Current pos
	if Mouse_In == true:
		if Input.is_mouse_button_pressed(BUTTON_LEFT):
			set_global_pos(Mpos)
			Objectdrag = true
		else:
			Objectdrag = false

func _on_KinematicBody2D_mouse_enter():
	Mouse_In = true

func _on_KinematicBody2D_mouse_exit():
	if Objectdrag == false:
		Mouse_In = false

I’m glad you fixed it.