WoWInterface - Lua help UnitDebuff

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- - Lua help UnitDebuff (https://www.wowinterface.com/forums/showthread.php?t=35192)

Lane	09-28-10 07:04 AM

Lua help UnitDebuff

I'm trying to calculate the time remaining for a specific debuff. I'm not getting any errors but I think my lack of lua Math and Rounding is causing a nonsensical return.

Given:

Code:

local function getSpellTime(spell)

        local name, _, _, _, _, dur, exp, caster = UnitDebuff("target", spell)

        if name ~= nil and caster == "player" and name == spell then

                return exp - GetTime();

        end

end

My return value is usually something like 2... or 4...

Any idea what I need to get whole second times?

Lane	09-28-10 07:34 AM

So I realized part of my problem was having a narrow frame to display the value. I solved that part so it is now working except for the zillion decimal places showing up. How do I just drop the decimal values?

yj589794

09-28-10 08:54 AM

If you want to round up the value you can use math.ceil, or to round down the value you can use math.floor (http://lua-users.org/wiki/MathLibraryTutorial).

If you want to print a formatted value, but retain the actual value in the parameter, you can use string.format (http://www.lua.org/pil/20.html).

Ailae

09-28-10 08:58 AM

Or something like:

Code:

FontString:SetFormattedText("%.0f", floor(timeleft))

http://wowprogramming.com/docs/widge...tFormattedText

Lane	09-28-10 09:13 AM

Quote:

Originally Posted by Ailae (Post 207576)

Or something like:

Code:

FontString:SetFormattedText("%.0f", floor(timeleft))

http://wowprogramming.com/docs/widge...tFormattedText

I don't know C at all so I started to go this direction but couldn't figure out what any of those options mean.

What does %.0f mean in english?

Lane	09-28-10 09:15 AM

Also, to clarify I don't want to round at all I just want to drop the decimal place.

From: 20.34546825638
To: 20

From: 20.67483
To: 20

Ailae

09-28-10 09:24 AM

Quote:

Originally Posted by Lane (Post 207578)

What does %.0f mean in english?

%.0f means that it will format the number you're inputting to a float with 0 decimals. So if you hand it 24.1241 you'd get 24 out.

You can try it ingame with

Code:

/dump string.format("%.0f", 24.1241)

which would yield..

Code:

Dump: value=string.format("%.0f", 24.1241)

[1]=24

If you'd want one decimal, you would use 1 instead of 0.

Lane	09-28-10 11:14 AM

Cool I'll try that tonight. While I was doing research on this I found some printf resources that said "%d" would give me the same results. Would that work in Lua too?

Ailae

09-28-10 11:22 AM

It would, but then it doesn't round the value.

With %.0f 21.7 becomes 22.
With %d 21.7 becomes 21.

Lane	09-28-10 11:55 AM

Place holder for when I get home:

Code:

local function getSpellTime(spell)

        local name, _, _, _, _, dur, exp, caster = UnitDebuff("target", spell)

        if name ~= nil and caster == "player" and name == spell then

            --return math.ceil(exp - GetTime());

            return string.format("%d", exp - GetTime());

        end

end

abija

10-10-10 03:35 AM

You can try

Code:

local function getSpellTime(spell)

        local name, _, _, _, _, dur, exp = UnitDebuff("target", spell, nil, "PLAYER")

        if name then

            return string.format("%d", exp - GetTime())

        end

end

Aznamir

10-10-10 08:26 AM

In my mod I use

Code:

function PallyPower:FormatTime(time)

        if not time or time < 0 or time == 9999 then

                return ""

        end

        local mins = floor(time / 60)

        local secs = time - (mins * 60)

        return sformat("%d:%02d", mins, secs)

end

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