ERROR:bad argument #1 to 'set_color' (userdata expected, got string) (SOLVED)

Questions
1

Hi,

I have a node which is just a black rectangle with the same size as the screen.
The purpose of above node is to make screen transitions(fade to black/fade from black).

I can’t seem to change the alpha of the above node, console spits out the below error:

function init(self)
	-- Add initialization code here
	-- Remove this function if not needed

	msg.post(".", "acquire_input_focus")
	
	go.set("#FAS-Statue", "scale.x", 0.65)
	go.set("#FAS-Statue", "scale.y", 0.65)

	gui.set_color( "#ScreenFadeNode", vmath.vector4(1, 1, 1, .5) )
--  ^-- ERROR:bad argument #1 to 'set_color' (userdata expected, got string)
	
--	go.set_position( vmath.vector3( 0, 0, 0 ), "#FAS-Website" )
--	go.set_position( vmath.vector3( 0, 0, 3 ), "#ScreenFade" )
--	go.set( "#ScreenFade", "tint", vmath.vector4( 1, 0, 0, .5) )

end

What am I doing wrong?
Thanks!

J.

2

Gui calls belong in gui scripts. You cannot use functions from the gui namespace in game object script components.

And pretty much all gui functions operate on nodes, not url:s or id:s.

See https://www.defold.com/manuals/gui/

3

Hi,

Got it almost working…

My issue now is the GUI text is ABOVE the ScreenFade sprite?
I messed around with the ScreenFade’s Z-axis but has no effect?

J.

4

Yes, that is the behavior of the default render script.

5

Well, how can I fix the above issue?
The “ScreenFade” sprite must be above all other things to work.
Let me know, thanks!

J.

6

You can change the renderscript to draw the sprite on top of everything else. You need to change material tag though. This is a bit advanced. Perhaps use labels instead of text nodes?

1 Like
7

Thanks, I have fade to black and fade from black screen transitions working now…
…Next is switching screens which is covered in the “Color Slide” tutorial…

J.

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