World position from event.position

[evaldazz]

Godot Version

Version 4.2

Question

Hi guys, I recently left Unity to join Godot and love it, but I keep running up against the same problem. I’m developing a 2D strategic game where you scroll back and forwards. All i want to do is place a sprite where i left click the mouse.

In unity c# it would be something like this:
spriteObject.transform.position = event.transform.position

But alas, the object vanishes and appears thousands of pixels away and nothing seems to work.

Here is a list of things I have tried so far:

I have tried both get_local_mouse_position() and get_global_mouse_position()
spriteObject.position = get_global_mouse_position()
I have tried using the camera, viewport, and canvas positions as offsets.
spriteObject.position = event.position + offset
I have tried converting to world space using:
var view_to_world = YOUR_NODE.get_canvas_transform().affine_inverse()
var world_position = view_to_world * view_position

I apologize if there is an obvious answer, but I’ve spent weeks stuck on it, and I can’t find anything that helps. Any assistance would be greatly appreciated.

[Monday]

Try spriteObject.global_position = get_global_mouse_position()
I don’t really know 2D but pretty sure that should work

[evaldazz]

Yes i tried that to to no avail. But thanks for the suggestion all the same.

[Sauermann]

Can you please show the scene tree and point out the node, that you are trying to position and point out the node, that contains the script?

Recently a similar question was raised, but i’m not sure, if this scenario applies to your use-case: Checking if an event is within a collisionshape2d area - #4 by Sauermann

[evaldazz]

The event fires no problem. Its the positioning of the targeter which goes odd.
The script is on StateScreen_maps, the targeter is the object I need to move to the world position, where one would left-click.

[mrcdk]

What @Monday said should work. You said in your post that you tried spriteObject.position but @Monday said you should use spriteObject.global_position which are different.

func _input(event: InputEvent) -> void:
	if event is InputEventMouseButton:
		if event.pressed:
			spriteObject.global_position = spriteObject.get_global_mouse_position()
			# This is the same as the line above
			# spriteObject.global_position = spriteObject.get_canvas_transform().affine_inverse() * event.global_position

More info about the coordinate system 2D coordinate systems and 2D transforms — Godot Engine (stable) documentation in English

[evaldazz]

Yeah that fixed it. the error i made was this:
spriteObject.global_position = spriteObject.get_global_mouse_position()
I missed out spriteObject before get_global_mouse_position()

Thanks for all your help guys, you are legends. I’m really impressed by the Godot community so far.