Lua Check summon names

[Xagul]

Hello, I have been trying to make a summoning spell with limits to how many monsters you can summon. I have the number limit working but I would like it to check for a specific monster name for example:

utevo res rat: summons a rat
utevo res rat: you can not have more than 1 rat at a time.
utevo res cave rat: summons cave rat
utevo res cave rat: you can not have more than 1 cave rat at a time.

So the player ends up with 1 rat and 1 cave rat.

The script I am currently using is:

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_MAGIC_GREEN)
setCombatParam(combat, COMBAT_PARAM_AGGRESSIVE, TRUE)

function onCastSpell(cid, var)
	if(table.maxn(getCreatureSummons(cid)) >= 1) then
		doPlayerSendCancel(cid, "You can't summon more than 1 rat at a time.")
	else
		creature = doCreateMonster("rat", getCreaturePosition(cid))
		doConvinceCreature(cid, creature)
		return doCombat(cid, combat, var)
    end
end

As you can see its almost working, I just need it to check the names of summons instead of every summon the player has.

 

[Doggynub]

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_MAGIC_GREEN)
setCombatParam(combat, COMBAT_PARAM_AGGRESSIVE, TRUE)

function onCastSpell(cid, var)
	local summon = true
	if(#getCreatureSummons(cid) >= 1) then
			for _,pid in ipairs(getCreatureSummons(cid)) do
				if string.lower(getCreatureName(pid)) == string.lower("rAt") then
					summon = false
				end
			end
    end
	if summon == true then 
		creature = doCreateMonster("rat", getCreaturePosition(cid))
		doConvinceCreature(cid, creature)
		doCombat(cid, combat, var)
	else
		doPlayerSendCancel(cid,"You already have a summoned rat.")
		return doSendMagicEffect(getThingPos(cid),2) and false
	end
	return true
end

 

[GOD Half]

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_MAGIC_GREEN)
setCombatParam(combat, COMBAT_PARAM_AGGRESSIVE, TRUE)

function onCastSpell(cid, var)
    local summon = true
    if(#getCreatureSummons(cid) >= 1) then
            for _,pid in ipairs(getCreatureSummons(cid)) do
                if string.lower(getCreatureName(pid)) == string.lower("rAt") then
                    summon = false
                end
            end
    end
    if summon == true then
        creature = doCreateMonster("rat", getCreaturePosition(cid))
        doConvinceCreature(cid, creature)
        doCombat(cid, combat, var)
    else
        doPlayerSendCancel(cid,"You already have a summoned rat.")
        return doSendMagicEffect(getThingPos(cid),2) and false
    end
    return true
end

Hi, I'm trying to make a system with different summons. And I need to have the count of each summon different that I have summoned (Exemplo: print->Rat = 2, Bug = 3, ...). I'm not sure how to build this code, can anyone help me based on this one? Please