bitExtract is broken (client side)

[Xenius97]

Describe the bug
bitExtract doesn't work (client side)

To reproduce

function toRGBA(color)
local b = bitExtract(color, 0, 8)
local g = bitExtract(color, 8, 8)
local r = bitExtract(color, 16, 8)
local a = bitExtract(color, 24, 8)
return r, g, b, a
end

local color = tocolor(123, 234, 196, 255)
print(toRGBA(color))

--> Always return 255
Serverside working properly

Clientside Runcode: tocolor(255, 200, 100, 255)
Result: -14236 [number]

srun bitExtract("-14236", 0, 8)
Result: 100 [number]
srun bitExtract("-14236", 8, 8)
Result: 200 [number]

Version
Multi Theft Auto v1.5.7-release-20325
Tested also on
Multi Theft Auto v1.5.7-release-20332

This is not a bug. You're not properly extracting rgba.
(In your case, b should also be 8 bytes)

Here's a working example:

local color = tocolor(123, 234, 196, 255) 
local b = bitExtract(color, 0, 8)
local g = bitExtract(color, 8, 8)
local r = bitExtract(color, 16, 8)
local a = bitExtract(color, 24, 8)

iprint("color rgb", r, g, b, a)

// request close

[Xenius97]

Not working with that! I forgot put back to 8, I tested.

[Xenius97]

This is a real bug, I tested everything but it's broken! It worked 3-4 days ago. I think mta developers update something.

It still works for me on latest nightly. Can you share full example code ?.

local color = -14236
local b = bitExtract(color, 0, 8)
local g = bitExtract(color, 8, 8)
local r = bitExtract(color, 16, 8)
local a = bitExtract(color, 24, 8)

iprint("color rgb", color, r, g, b, a)

does work as expected on client.

[Xenius97]

My code is in first post. For me it returns 255 255 255 255 always. I tested with runcode and with that script, only serverside working.

[Einheit-101]

I can not confirm this bug either. I am using this on my server for a decade and i just tested it in map editor, mta build v1.5.7-release-20288

[Xenius97]

Working with Multi Theft Auto v1.5.7-release-20324

[StrixG]

Can confirm this bug on Multi Theft Auto v1.5.7-release-20332. It seems like updating to VS2019 has broken some functions.

[ccw808]

Please test latest build on https://nightly.mtasa.com/

[Xenius97]

@ccw808 not working

Runcode: bitExtract(tocolor(200, 100, 50, 150), 0, 8)
Result: 255 [number]
Runcode: bitExtract(tocolor(200, 100, 50, 150), 8, 8)
Result: 255 [number]

[Dutchman101]

Can confirm this bug on Multi Theft Auto v1.5.7-release-20332. It seems like updating to VS2019 has broken some functions.

It could be that vs2019 broke more than the single other case known: 53121a3
But no stress, so far it's just a nightly