jaden0327 wrote:

I want to make a color hex project
Who can tell me how to do it?
https://scratch.mit.edu/projects/705835403/

ANTNEST2 wrote:

jaden0327 wrote:

I want to make a color hex project
Who can tell me how to do it?
https://scratch.mit.edu/projects/705835403/

Thank you for your query! In fact, I am also working on a similar project but using LUM format. Is it alright if I get back to you in a while?

jaden0327 wrote:

ANTNEST2 wrote:

jaden0327 wrote:

I want to make a color hex project
Who can tell me how to do it?
https://scratch.mit.edu/projects/705835403/

Thank you for your query! In fact, I am also working on a similar project but using LUM format. Is it alright if I get back to you in a while?

ok

awesome-llama wrote:

What do you want to do with hexadecimal colours exactly?

ANTNEST2 wrote:

jaden0327 wrote:

ANTNEST2 wrote:

jaden0327 wrote:

I want to make a color hex project
Who can tell me how to do it?
https://scratch.mit.edu/projects/705835403/

Thank you for your query! In fact, I am also working on a similar project but using LUM format. Is it alright if I get back to you in a while?

ok

Okay, I got an idea. Firstly, create variables for each digit, then code a program that divides the RBG format into 16 and obtain the remainder. Then, create a function that converts digits beyond 9 into hexadecimal format. Then, join the digits using Red, Green And blue, with the hashtag in front!

Hope this helps!

define rgb to hex (number)
set [quotient v] to ([floor v] of ((number) / (16))) // 'number / 16' returns a decimal number, and 'floor' rounds it down to an integer or whole number
set [remainder v] to ((number) mod (16)) // mod block
if <(quotient) > [9]> then 
if <(quotient) = [10]> then
set [first digit v] to [A]
end
if <(quotient) = [11]> then
set [first digit v] to [B]
end
if <(quotient) = [12]> then
set [first digit v] to [C]
end
if <(quotient) = [13]> then
set [first digit v] to [D]
end
if <(quotient) = [14]> then
set [first digit v] to [E]
end
if <(quotient) = [15]> then
set [first digit v] to [F]
end
else
set [first digit v] to (quotient)
end
if <(remainder) > [9]> then 
if <(remainder) = [10]> then
set [first digit v] to [A]
end
if <(remainder) = [11]> then
set [second digit v] to [B]
end
if <(remainder) = [12]> then
set [second digit v] to [C]
end
if <(remainder) = [13]> then
set [second digit v] to [D]
end
if <(remainder) = [14]> then
set [second digit v] to [E]
end
if <(remainder) = [15]> then
set [second digit v] to [F]
end
else
set [second digit v] to (remainder)
end
set [result v] to (join (first digit) (second digit))

god286 wrote:

2 digit hex can be from 0-255 and each letter in RGB is also 0-255 which is great
To convert from base10 to base16 we can divide the input number by 16 and then use the quotient and remainder.
For example, to convert 255 into base 16,
254 / 16 = 15 and the remainder is 14
Base 10 has 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
Base 16 has 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, F
10 is A, 11 is B, 12 is C, 13 is D, 14 is E, 15 is F
Since 15 (the quotient) is greater than 9, 15 is F, so the first character is F.
The remainder is 14, it is greater than 9, 14 is E, so the second character is E.
'F' + ‘E’ is FE so FE is your answer.

-snip-

This only works for numbers between 0 and 255 though.
If your RGB is 123, 233, 453 then you need to do this individually, and join them all together with the join block. Then add a “#” at the front.

set [result v] to (letter ((digit) + (1)) of [0123456789abcdef])

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