Predecimal digits with float

[MaddDogg]

Hi!

I'm currently working on a car system and I just tried something out at the odometer.

The number is shown digitally using dxDrawText and has 2 decimal digits.

But now I thought, let's have some more digits in front of the decimal position.

But the problem is that when I use a directive inside of string.format with a number in front of the '%', it naturally uses this number for the digit amount of decimal digits. On the other hand, the %d directive uses this system to determine the amount of decimal digits. (I hope you can still follow me )

Now I came up with the following, but I just ask myself, if there's a simpler way to do it:

local integer = string.format("%07d", kmDistance) -- getting the integer value for the predecimal digits
local decimals = string.sub(string.format("%.2f", kmDistance - math.floor(kmDistance)), 2, 4) -- this creates the string holding the decimal digits - the '0' in front of it is cut away
 
dxDrawText(integer .. decimals,scrW*0.3,scrH*0.9297,scrW*0.3661,scrH*0.9619,tocolor(50,65,100,255),1.0,"default-bold","center","center",true,false,true) -- drawing the odometer number

So, is there a better way to do this?

And is it a problem do have this in an onClientRender handler function? Or is it a bit too heavy for slow PCs?

Thanks for any help in advance.

Madd

[dzek (varez)]

And is it a problem do have this in an onClientRender handler function? Or is it a bit too heavy for slow PCs?

its not a problem

[DiSaMe]

You can round decimals in this way:

rounded_value = math.floor(unrounded_value*100)/100