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GTA3 floating point math increments at 0.0625 at a time #221
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[-]GTA3 floating point math increments at 0.0625 at at ime[/-][+]GTA3 floating point math increments at 0.0625 at a time[/+]on Mar 22, 2023 I tried to decompile the .cs file and sure enough, its different
// This file was decompiled using SCM.ini published on 2021-05-25 {$CLEO .cs} 0@ = 0.0 // @ = float :NONAME_8 wait 500 0@ += 0.0625 // @ += float print_formatted_now "%.6F" time 500 0@ jump @NONAME_8This is how floats work in GTA III.
https://gtamods.com/wiki/Talk:Mission_Scripting_(Overview)#Fixed-point_remarkInteresting, I'll have to figure out other ways around that then. Thanks!
This limitation only affects floating-point literals. You can't use 0@ = 0.3 because the compiler truncates the value to 0.25. But you can bypass it by writing an IIIE-754 representation of the float into a variable (they are 32-bit and contain values as is).
0@ = 0x3e99999a // see https://www.h-schmidt.net/FloatConverter/IEEE754.html print_formatted_now "%.6F" time 500 0@let me know if that works.
Yes, that works. Interesting too because it can do floating point math fine. I just had to adapt it to look like this and it works fine
{$CLEO .cs} 0@ = 0x3e99999a // 0.3 while true wait 500 000B: 0@ += 0x3c23d70a // 0.01 0AD1: show_formatted_text_highpriority "%.6f" time 500 0@ endReacted by Seemann- locked and limited conversation to collaborators
on May 7, 2023
This is a really weird issue. I was debugging why some code wasn't working and made this simple counter CLEO script
One would expect it to go up like
[0.1, 0.2, 0.3, 0.4, 0.5]But instead, it goes up like
[0.0625, 0.1250, 0.1875, 0.25, 0.3125]Adding different values like between 0.0-0.6 causes 0@ to not change,
while adding something like 0.2 causes it to go more like
[0.1875, 0.3125, 0.5625], as if it was rounding to the nearest floating point divisible by 0.625. I'm not sure if this is a Sanny Builder thing or GTA3 thing, but it does work as expected for VC and SA.Setting values like
0@ = 0.3does the same thing as well, where this rounds down to 0.25