Lua Involving time in scripts

[Colandus]

In response to:

I learned how to script now, much thansk to you guys, just need a tutorial how to add time etc and a bit more things...

I have decided to make this short tutorial (from other linked websites and one in here for os.time()) because many people has asked for it.

addEvent "tutorial": How to use addEvent()?
Storage values: Storage Values - OpenTibia Fans (note that the example was for XML servers, now it's saved in database)

How to know e.g. if an hour has passed since a certain action:
os.time() - this function will return a time that increase each second (it's seconds since 1970, but that's irrelevant). By knowing it increases each second, it also means that it has increased by 60 in a minute...

That way, you can put the os.time() in a storage value, and next time he use the item/talkaction, it will compare the current os.time() with the stored os.time().

Example:

local compareTime = 5 * 24 * 60 * 60 -- This is 5 days, in seconds. I will compare the differences of the stored os.time() with the current os.time() to see how long time ago it was stored.

local currentValue = getPlayerStorageValue(cid, 23232)
if currentValue == -1 then -- This means that it has not been set before. If I'd compare -1 with os.time it'd give me the seconds of 39 years (2009 - 1070 = 39) and it would cause my statements to fail. So what I need to do is to declare it as os.time(). This will only happen the first time.
    currentValue = os.time()
end

if (os.time() - currentValue) >= compareTime then -- This will check if the last time you did this action (e.g used item or executed talkaction) was more than 5 days ago (compareTime) by subtracting the current time with the old time.
    -- Now, we do something that should only be able to be done each 5 days, e.g. give an item.
    doPlayerAddItem(cid, itemid, count)

    -- Now, we need to update the stored time, so next time he use it, it should count that he has done this quest right now.
    setPlayerStorageValue(cid, 23232, os.time()) -- Storage value must obviously be the same as the one we check. We set it to os.time() to store the current time.
else
    -- The statement failed, which means that he done the quest within 5 days, he still need to wait.
    doPlayerSendCancel(cid, "You are not ready for this yet.")
end

Notepad++ is a must-have: .:: NOTEPAD++ ::.


Regards,
Colandus

 

[Darth_Salva]

wow! pretty useful. Thnks!

 

[Zoriath]

lal where is teh function?

 

[Fare]

I can use os.time even for values which more then 24 hours? I thouth after 24h it's will be same cycle, like if I will jail someone for 25 hours, at 14:15, it will store 15:15, and jailing will gone in 1h instead of 25 hours....

or it's when os.date("%Y-%m-%d %H:%M:%S") I can set values even for years?xD

 

[Colandus]

os.time() is since 1970, so I bet 24 hours is no problem

Actually os.time() stores the seconds since 1970, so after 1 year it will hold (60 * 60 * 24 * AMOUNT_OF_DAYS_PER_YEAR) and all you do is to compare the current os.time() with the stored one

 

[Fare]

omg ^^ thanks D:

 

[Aardappel]

broken link otlua

 

[Colandus]

oooooo rox skriptek mann!! u best....

 

[Synthetic_]

another great tutorial, thanks Colandus^_^

 

[Guitar Freak]

oooooo rox skriptek mann!! u best....

lol..

Btw the link for "How to use addEvent()?" is broken, any chance of reposting?

 

[Colandus]

aff i forgot that shit i cant repost i dont have saved and i dont feel like rewriting