C++ imbuiment mods 8.6

[kfalls]

I would like a system where the player uses an item on it, and when it hits the monster or another player it fills up some of the mana and life as a percentage of the damage caused, and with a duration of two hours after that the player has to use the item again.

tfs 0.3.6

 

[PeertjeFtw]

Step 1:
data/actions/scripts/leech_item.lua

local config = {
    storage = 50000,
    duration = 2 * 60 * 60,
    itemId = 12345,
    effect = CONST_ME_MAGIC_BLUE
}

function onUse(cid, item, fromPosition, itemEx, toPosition)
    if not isPlayer(cid) then
        return true
    end

    if item.itemid ~= config.itemId then
        return true
    end

    local current = getPlayerStorageValue(cid, config.storage)
    if current ~= -1 and current > os.time() then
        local left = current - os.time()
        local hours = math.floor(left / 3600)
        local minutes = math.floor((left % 3600) / 60)

        doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR,
            "This item is already active. Time left: " .. hours .. " hour(s) and " .. minutes .. " minute(s).")
        return true
    end

    setPlayerStorageValue(cid, config.storage, os.time() + config.duration)
    doSendMagicEffect(getThingPos(cid), config.effect)
    doPlayerSendTextMessage(cid, MESSAGE_INFO_DESCR, "Life/Mana leech activated for 2 hours.")
    return true
end

Step 2:
data/creaturescripts/scripts/leech_buff.lua

local config = {
    storage = 50000,            -- must be the same storage as in leech_item.lua
    healthPercent = 20,         -- % of damage returned as life
    manaPercent = 15,           -- % of damage returned as mana
    effect = CONST_ME_HOLYDAMAGE
}

function onStatsChange(cid, attacker, type, combat, value)
    if not attacker or not isCreature(attacker) then
        return true
    end

    if not isPlayer(attacker) then
        return true
    end

    -- We only care when the target loses health
    if type ~= STATSCHANGE_HEALTHLOSS then
        return true
    end

    -- Ignore zero/negative weird values
    if value <= 0 then
        return true
    end

    -- Check if buff is active
    local expireTime = getPlayerStorageValue(attacker, config.storage)
    if expireTime == -1 or expireTime < os.time() then
        return true
    end

    -- Prevent self-hit abuse
    if cid == attacker then
        return true
    end

    -- Only apply if target is monster or player
    if not isMonster(cid) and not isPlayer(cid) then
        return true
    end

    local healAmount = math.floor((value * config.healthPercent) / 100)
    local manaAmount = math.floor((value * config.manaPercent) / 100)

    if healAmount > 0 then
        doCreatureAddHealth(attacker, healAmount)
    end

    if manaAmount > 0 then
        doPlayerAddMana(attacker, manaAmount)
    end

    if healAmount > 0 or manaAmount > 0 then
        doSendMagicEffect(getThingPos(attacker), config.effect)
    end

    return true
end

Step 3:
data/creaturescripts/creaturescripts.xml

<event type="statschange" name="LifeManaLeech" event="script" value="leech_buff.lua"/>

Step 4:
data/creaturescripts/scripts/login.lua

function onLogin(cid)
    XXXXXX CODE
    registerCreatureEvent(cid, "LifeManaLeech")
    XXXXXX OTHER CODE
    return true
end

Step 5:
data/actions/actions.xml

<action itemid="12345" script="leech_item.lua"/>