Lua Exercise dummies question

[lucas mazzotti]

hello ppl, need help about limit house training dummy (ferumbras monk and demon), to only one player train per dummy, im using tfs 1.3
heres my exercise_training:

local skills = {
    [32384] = {id=SKILL_SWORD,voc=4}, -- KNIGHT
    [32385] = {id=SKILL_AXE,voc=4}, -- KNIGHT
    [32386] = {id=SKILL_CLUB,voc=4}, -- KNIGHT
    [32387] = {id=SKILL_DISTANCE,voc=3,range=CONST_ANI_SIMPLEARROW}, -- PALADIN
    [32388] = {id=SKILL_MAGLEVEL,voc=2,range=CONST_ANI_SMALLICE}, -- DRUID
    [32389] = {id=SKILL_MAGLEVEL,voc=1,range=CONST_ANI_FIRE}, -- SORCERER
    [32124] = {id=SKILL_SWORD,voc=4}, -- KNIGHT
    [32125] = {id=SKILL_AXE,voc=4}, -- KNIGHT
    [32126] = {id=SKILL_CLUB,voc=4}, -- KNIGHT
    [32127] = {id=SKILL_DISTANCE,voc=3,range=CONST_ANI_SIMPLEARROW}, -- PALADIN
    [32128] = {id=SKILL_MAGLEVEL,voc=2,range=CONST_ANI_SMALLICE}, -- DRUID
    [32129] = {id=SKILL_MAGLEVEL,voc=1,range=CONST_ANI_FIRE} -- SORCERER
}

local houseDummies = {32143, 32144, 32145, 32146, 32147, 32148}
local freeDummies = {32142, 32149}
local skillRate = configManager.getNumber(configKeys.RATE_SKILL)*9
local magicRate = configManager.getNumber(configKeys.RATE_MAGIC)

local function start_train(pid,start_pos,itemid,fpos, bonusDummy, dummyId)
    local player = Player(pid)
    if player ~= nil then
    if Tile(fpos):getItemById(dummyId) then
        local pos_n = player:getPosition()
        if start_pos:getDistance(pos_n) == 0 and getTilePzInfo(pos_n) then
            if player:getItemCount(itemid) >= 1 then
                local exercise = player:getItemById(itemid,true)
                if exercise:isItem() then
                    if exercise:hasAttribute(ITEM_ATTRIBUTE_CHARGES) then
                        local charges_n = exercise:getAttribute(ITEM_ATTRIBUTE_CHARGES)
                        if charges_n >= 1 then
                            exercise:setAttribute(ITEM_ATTRIBUTE_CHARGES,(charges_n-1))

                            local voc = player:getVocation()

                            if skills[itemid].id == SKILL_MAGLEVEL then
                                if not bonusDummy then
                                    player:addManaSpent(math.ceil(500*magicRate))
                                else
                                    player:addManaSpent(math.ceil(500*magicRate)*1.1) -- 10%
                                end
                            else
                                if not bonusDummy then
                                    player:addSkillTries(skills[itemid].id, 1*skillRate)
                                else
                                    player:addSkillTries(skills[itemid].id, (1*skillRate)*1.1) -- 10%
                                end
                            end
                                fpos:sendMagicEffect(CONST_ME_HITAREA)
                            if skills[itemid].range then
                                pos_n:sendDistanceEffect(fpos, skills[itemid].range)
                            end
                            local training = addEvent(start_train, voc:getAttackSpeed(), pid,start_pos,itemid,fpos,bonusDummy,dummyId)
                            player:setStorageValue(Storage.isTraining,1)
                        else
                            exercise:remove(1)
                            player:sendTextMessage(MESSAGE_INFO_DESCR, "Your training weapon vanished.")
                            stopEvent(training)
                            player:setStorageValue(Storage.isTraining,0)
                        end
                    end
                end
            end
        else
            player:sendTextMessage(MESSAGE_INFO_DESCR, "Your training has stopped.")
            stopEvent(training)
            player:setStorageValue(Storage.isTraining,0)
        end
    else
    stopEvent(training)
            player:sendTextMessage(MESSAGE_INFO_DESCR, "Your training has stopped.")
            player:setStorageValue(Storage.isTraining, 0)
            end
            else
        stopEvent(training)
        if player then
            player:sendTextMessage(MESSAGE_INFO_DESCR, "Your training has stopped.")
            player:setStorageValue(Storage.isTraining,0)
        end
    end

    return true
end

function onUse(player, item, fromPosition, target, toPosition, isHotkey)
    local start_pos = player:getPosition()
    if player:getStorageValue(Storage.isTraining) == 1 then
        player:sendTextMessage(MESSAGE_INFO_DESCR, "You are already training.")
        return false
    end
    if target:isItem() then
        if isInArray(houseDummies,target:getId()) then
            if not skills[item.itemid].range and (start_pos:getDistance(target:getPosition()) > 1) then
                player:sendTextMessage(MESSAGE_INFO_DESCR, "Get closer to the dummy.")
                stopEvent(training)
                return true
            end
            player:sendTextMessage(MESSAGE_INFO_DESCR, "You started training.")
            start_train(player:getId(),start_pos,item.itemid,target:getPosition(), true, target:getId())
        elseif isInArray(freeDummies, target:getId()) then
            if not skills[item.itemid].range and (start_pos:getDistance(target:getPosition()) > 1) then
                player:sendTextMessage(MESSAGE_INFO_DESCR, "Get closer to the dummy.")
                stopEvent(training)
                return true
            end
            player:sendTextMessage(MESSAGE_INFO_DESCR, "You started training.")
            start_train(player:getId(),start_pos,item.itemid,target:getPosition(), false, target:getId())
        end
    end
    return true
end

also, how to set if you are training you dont logout, when your weapons vanishes it start using another if you have more in bp, and if you cast spell or use pot it stop train?