Lua Multi target weapon bug

[mRefaat]

Hello

I found bug in this script
if you attack a player and there is another one next to him but blocked by a wall, the wand still can atk him.
any help with that?

local combat = createCombatObject()
setCombatParam(combat, COMBAT_PARAM_BLOCKARMOR, 0)
setCombatParam(combat, COMBAT_PARAM_BLOCKSHIELD, 0)
setCombatParam(combat, COMBAT_PARAM_TYPE, COMBAT_HOLYDAMAGE)
setCombatParam(combat, COMBAT_PARAM_EFFECT, CONST_ME_HOLYDAMAGE)
setCombatParam(combat, COMBAT_PARAM_DISTANCEEFFECT, CONST_ANI_HOLY)
setCombatFormula(combat, COMBAT_FORMULA_LEVELMAGIC, -0.2, -25, -0.2, -3)
 
local manaNeededPerTarget = 20
local hitExtraTargets = 2 -- number of extra targets, so it should attack our target + X other monsters/players
local hitExtraTargetsInRange = 2 -- distance to 'extra target' from our target
 
 
function onUseWeapon(cid, var)
    local ret = doCombat(cid, combat, var)
    if(ret == LUA_ERROR) then
        return LUA_ERROR
    end
    local manaSpent = manaNeededPerTarget
    local target = variantToNumber(var)
    local hitplayers = false
    if(target ~= 0) then
        if(isPlayer(target)) then
            hitplayers = true
        end
        local otherTargets = getSpectators(getCreaturePosition(target), hitExtraTargetsInRange, hitExtraTargetsInRange, false)
        if(#otherTargets > 0) then
            local i = 1
            while(i ~= #otherTargets) do
                local pid = otherTargets[i]
                if(isNpc(pid) or pid == cid or pid == target or (isPlayer(pid) and (not hitplayers or getTileInfo(getCreaturePosition(pid)).protection))) then
                    table.remove(otherTargets, i)
                else
                    i = i + 1
                end
            end
        end
        for i = 1, hitExtraTargets do
            if(#otherTargets > 0 and getCreatureMana(cid) >= manaSpent + manaNeededPerTarget) then   
                local randomId = math.random(1, #otherTargets)
                local nowHit = otherTargets[randomId]
                table.remove(otherTargets, randomId)
                ret = doCombat(cid, combat, numberToVariant(nowHit))
                if(ret ~= LUA_ERROR) then
                    manaSpent = manaSpent + manaNeededPerTarget
                end
            else
                break
            end
        end
    end
    doPlayerAddSpentMana(cid, manaSpent)
    doCreatureAddMana(cid, -manaSpent)
    return true
end