The Scratch Wiki should be showing the right script.

Anyway, I have a project that looks at the colour of a certain pixel of the screen by using a sprite to compare every colour and see how it matches. However, even though I have the counter (decimal number to be converted) change by 1 every time, the hexadecimal conversion (variable called “Output”) always shows 0, 00, 000, 0000, 00000, or 000000! What is going on? Can someone please help me?

Do you mean you're using a script from the wiki? Provide a link please and share your project.

Using mod 16, subtracting and dividing by 16 until the value is 0 should be all that is required.

253 mod 16 = 13, subtract to get 240, divide to get 15. 15 mod 16 is 15 leaving 0 when you subtract. so the value is 15-13 which you need to convert to FD.

deck26 wrote:

Do you mean you're using a script from the wiki? Provide a link please and share your project.

Using mod 16, subtracting and dividing by 16 until the value is 0 should be all that is required.

253 mod 16 = 13, subtract to get 240, divide to get 15. 15 mod 16 is 15 leaving 0 when you subtract. so the value is 15-13 which you need to convert to FD.

I modified the script from the wiki.

The “Counter” variable is the number that's being converted. I put it inside a repeat block in the original project which is unshared.

To prevent the project from freezing, I extracted out the script by creating a copy. Here it is: https://scratch.mit.edu/projects/347540267

You should have Temp mod 16 rather than Output mod 16.

deck26 wrote:

You should have Temp mod 16 rather than Output mod 16.

Thanks

kChiaEC19 wrote:

deck26 wrote:

You should have Temp mod 16 rather than Output mod 16.

Thanks

Oh wait, now I have to backpack a larger script. The color is random and should be the same as the Counter variable! What is happening now?

kChiaEC19 wrote:

kChiaEC19 wrote:

deck26 wrote:

You should have Temp mod 16 rather than Output mod 16.

Thanks

Oh wait, now I have to backpack a larger script. The color is random and should be the same as the Counter variable! What is happening now?

No idea what you mean. Changing one variable doesn't change the size of a script.

Deal with one problem at a time please. Have you now resolved changing one decimal value to hex?

deck26 wrote:

kChiaEC19 wrote:

kChiaEC19 wrote:

deck26 wrote:

You should have Temp mod 16 rather than Output mod 16.

Thanks

Oh wait, now I have to backpack a larger script. The color is random and should be the same as the Counter variable! What is happening now?

No idea what you mean. Changing one variable doesn't change the size of a script.

Deal with one problem at a time please. Hvae you now resolved changing one decimal value to hex?

Yes, but now, the hex conversion is random. I'll share with you the new version. It's going to be a copy. (Sorry for not getting the message)

The digits don't look like they are in the order on this copy with the variable showing: https://scratch.mit.edu/projects/347595204

(Other project now unshared in earlier post)

You don't need to scan that number of colours. Scratch can't distinguish the lower bits of the colour ranges. See the Notes on this project https://scratch.mit.edu/projects/10941245/

You should be joining the new value in front of Output, not at the end.

deck26 wrote:

You don't need to scan that number of colours. Scratch can't distinguish the lower bits of the colour ranges. See the Notes on this project https://scratch.mit.edu/projects/10941245/

You should be joining the new value in front of Output, not at the end.

I know, I'm just getting the highest color anyway.

kChiaEC19 wrote:

deck26 wrote:

You don't need to scan that number of colours. Scratch can't distinguish the lower bits of the colour ranges. See the Notes on this project https://scratch.mit.edu/projects/10941245/

You should be joining the new value in front of Output, not at the end.

I know, I'm just getting the highest color anyway.

But it means your code is many times slower than it could be. You'd actually be a lot better with 3 nested loops going through the RGB codes.

PLS GIVE ME THE CODE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Agastya467 wrote:

PLS GIVE ME THE CODE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Please don't necropost. You can visit the link above (https://scratch.mit.edu/projects/10941245/) and remix the project if you are looking for the color detection script, and if you're looking for a hexadecimal conversion algorithm, look it up or create your own topic

I think I have the code it works (sometimes)

this is the project I used it in:
https://scratch.mit.edu/projects/1122374528/


it requires a list 1,2,3,4,5,6,7,8,9,a,b,c,d,e,f,0
but it works most of the time, also I would love for someone to help me improve it.

jwfshf wrote:

I think I have the code it works (sometimes)

this is the project I used it in:
https://scratch.mit.edu/projects/1122374528/


it requires a list 1,2,3,4,5,6,7,8,9,a,b,c,d,e,f,0
but it works most of the time, also I would love for someone to help me improve it.

Don't necropost.