I have a game where it scans a sprite and re-draws it using pen. I am having some difficulties scanning for a curtain colour. please help me. tell me what to do of remix thanks!
https://scratch.mit.edu/projects/219835770/#editor
Have An awesome Day!

You're not adding anything to the colour list.

deck26 wrote:

You're not adding anything to the colour list.

I know but when the ColourItem goes through all the colours it just keeps going

lwell72 wrote:

deck26 wrote:

You're not adding anything to the colour list.

I know but when the ColourItem goes through all the colours it just keeps going

No, I mean you don't have any code that adds data to the list.

Never use a forever block in a custom block with no screen refresh even if you have a ‘stop this script’ in there. A custom block can only take advantage of the no screen refresh if it completes quickly enough and you can't guarantee that with a forever loop.

You also have a forever loop setting x in Cool as well as the custom blocks trying to change x which is likely to lead to conflicts.

But when I do this it does not work.

Oops that colour variable is ment to be a variable not a list.

A full colour scanner covering 32 x 32 x 16 colours pixel by pixel is very slow and not really feasible - you certainly don't want to continue the loops oncce you've found a match. A better solution is to use a full screen costume initially to scan the whole screen for colours which are present to create a sub-list of colours and then only scan pixel by pixel for those colours.

deck26 wrote:

A full colour scanner covering 32 x 32 x 16 colours pixel by pixel is very slow and not really feasible - you certainly don't want to continue the loops oncce you've found a match. A better solution is to use a full screen costume initially to scan the whole screen for colours which are present to create a sub-list of colours and then only scan pixel by pixel for those colours.

I don’t really understand how that works. Can you edit the remix you made if that’s possible?

I don't really understand what you trying to do? Do you want a color picker function like for example on https://www.colorcodepicker.com ? Like “storing” a color?

Thanks!