WoWInterface - Rounding down on Lua

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- - Rounding down on Lua (https://www.wowinterface.com/forums/showthread.php?t=43748)

Aanson

07-19-12 07:54 AM

Rounding down on Lua

Hey guys, quick question...

I've created a button which allows me to increase/decrease the height of ChatFrame by using OnMouseWheel.

The button also shows the height of the ChatFrame with OnSizeChanged:

Lua Code:

self.text:SetText("Height: "..ChatFrame1:GetHeight())

It returns though with something like 280.00033324777.

While I appreciate it's accuracy lol, could someone give me a pointer on how I can round down the data that I get from GetHeight()?

Any help would be hugely appreciated :).

Aanson

Haleth

07-19-12 07:58 AM

Lua Code:

self.text:SetText("Height: "..floor(ChatFrame1:GetHeight()))

http://wowprogramming.com/docs/api_categories#lua

:)

On an unrelated note, all of the numbers behind the separator you're seeing are not due to accuracy, but due to the inaccuracy of how numbers are stored on a computer - at least non-integer numbers, but in lua, integers and non-integers are treated in the same way.

Aanson

07-19-12 11:57 AM

Cheers!

Cheers mate that's great :)

Phanx

07-19-12 04:36 PM

I would suggest doing floor(ChatFrame1:GetHeight() + 0.5), so that if it returns 179.99999943743243 you will end up with 180, which is probably what you want.

Aanson

07-19-12 05:04 PM

Quote:

Originally Posted by Phanx (Post 258456)

I would suggest doing floor(ChatFrame1:GetHeight() + 0.5), so that if it returns 179.99999943743243 you will end up with 180, which is probably what you want.

Cheers Phanx lol. You've read my mind. That's perfect.

Aanson

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