Underrail Forum

Underrail => General => Topic started by: HulkOSaurus on September 19, 2019, 01:50:27 pm

Title: How does Underrail handle decimals?
Post by: HulkOSaurus on September 19, 2019, 01:50:27 pm

How does Underrail even out decimal digits?

In particular, if you have 12 AP action cost, but reduce that by 39%. Would it be 5 or 6?

Title: Re: How does Underrail handle decimals?
Post by: Maliel on September 19, 2019, 04:30:18 pm

If it benefits you rounded down, if not rounded up

Title: Re: How does Underrail handle decimals?
Post by: HulkOSaurus on September 19, 2019, 04:49:02 pm

Quote from: Maliel on September 19, 2019, 04:30:18 pm

If it benefits you rounded down, if not rounded up

Ok, thanks.

Title: Re: How does Underrail handle decimals?
Post by: HulkOSaurus on September 20, 2019, 08:06:33 am

Quote from: epeli on September 20, 2019, 03:11:59 am

There's no clean rule for that, but usually decimal digits are truncated. Anything after the decimal point is just discarded. So for example 5.99 would be "rounded down" to 5 while -5.99 would be "rounded up" to -5. (On the technical side, the game usually just casts floats/doubles into ints.)

But there are exceptions, and AP cost is one of them. You can check the AP cost tables at https://www.underrail.com/wiki/index.php?title=Dexterity

Worth noting: if you calculate stuff by hand, the in-game math can be off by one from calculator results due to floating point rounding errors. Usually this won't matter, but with thresholds like AP costs or crafting skill requirements that one point could make all the difference.

Ok, thanks, man.

Time to stock on eel sandwiches.