Lua How to make something last x seconds

[reisbro]

So I am testing this simple script because I have a future project in mind that will use a similar code. Player uses a talkaction and receives 50 health. The action has 5 seconds cooldown as you can see below. This script is working fine btw, I tested it and found no issues.

local ex_storage = 9919
local ex_time = 5

function onSay(cid, words, param)
if exhaustion.get(cid, ex_storage) then
        local remaining = exhaustion.get(cid, ex_storage)
        doPlayerSendCancel(cid, 'You have to wait ' .. remaining .. ' more seconds.')
        return true
    end
    exhaustion.set(cid, ex_storage, ex_time)
    doCreatureAddHealth(cid, 50)
    doSendMagicEffect(getCreaturePosition(cid), CONST_ME_HEARTS)
    doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Rawr!")
return true
end

However, I want to make the player get damaged by 10 hit points after like 2 seconds of using the talkaction. How can I make something happen to the player after X seconds of using a talkaction?

 

[Codex NG]

local ex_storage = 9919
local ex_time = 5
local damage = -10
function onSay(cid, words, param)
    if exhaustion.get(cid, ex_storage) then
        local remaining = exhaustion.get(cid, ex_storage)
        if remaining % 2 == 0 then
            doCreatureAddHealth(cid, damage)
        end
        doPlayerSendCancel(cid, 'You have to wait ' .. remaining .. ' more seconds.')
        return true
    end
    exhaustion.set(cid, ex_storage, ex_time)
    doCreatureAddHealth(cid, 50)
    doSendMagicEffect(getCreaturePosition(cid), CONST_ME_HEARTS)
    doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Rawr!")
    return true
end

This means if the value of remaining modulo 2, meaning remaining / 2 and if there is no remainder then the expression evaluates to true

remaining % 2 == 0

 

[reisbro]

local ex_storage = 9919
local ex_time = 5
local damage = -10
function onSay(cid, words, param)
    if exhaustion.get(cid, ex_storage) then
        local remaining = exhaustion.get(cid, ex_storage)
        if remaining % 2 == 0 then
            doCreatureAddHealth(cid, damage)
        end
        doPlayerSendCancel(cid, 'You have to wait ' .. remaining .. ' more seconds.')
        return true
    end
    exhaustion.set(cid, ex_storage, ex_time)
    doCreatureAddHealth(cid, 50)
    doSendMagicEffect(getCreaturePosition(cid), CONST_ME_HEARTS)
    doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Rawr!")
    return true
end

This means if the value of remaining modulo 2, meaning remaining / 2 and if there is no remainder then the expression evaluates to true

remaining % 2 == 0

Won't this apply the damage only if the player uses the command again? Or does it work like a timer?