[Ace]

Code:

function ItemCount(itemid)
    local itemcount = 0
    
    --Look through regular bags first.
    for x=0,3 do
        local inv = Inventory("type="..tostring(x))
        for i, item in pairs(inv) do
            if (item.id == itemid) then
                itemcount = itemcount + item.count
            end
        end
    end
    
    --Look through equipped items bag.
    local inv = Inventory("type=1000")
    for i, item in pairs(inv) do
        if (item.id == itemid) then
            itemcount = itemcount + 1
        end
    end
    
    --Look through armory bags for off-hand through wrists
    for x=3200,3209 do
        local inv = Inventory("type="..tostring(x))
        for i, item in pairs(inv) do
            if (item.id == itemid) then
                itemcount = itemcount + 1
            end
        end
    end
    
    --Look through rings armory bag.
    local inv = Inventory("type=3300")
    for i, item in pairs(inv) do
        if (item.id == itemid) then
            itemcount = itemcount + 1
        end
    end
    
    --Look through soulstones armory bag.
    local inv = Inventory("type=3400")
    for i, item in pairs(inv) do
        if (item.id == itemid) then
            itemcount = itemcount + 1
        end
    end
    
    --Look through weapons armory bag.
    local inv = Inventory("type=3500")
    for i, item in pairs(inv) do
        if (item.id == itemid) then
            itemcount = itemcount + 1
        end
    end
    
    --Look through quest/key items bag.
    local inv = Inventory("type=2004")
    for i, item in pairs(inv) do
        if (item.id == itemid) then
            itemcount = itemcount + item.count
        end
    end
    
    return itemcount
end

This is an expanded version I use for misc inventory item counting. For fishing you really only need the first loop, but the main ffxivminion module will use this version (and I believe already uses one with basic inventory counting). You can use the code below to test:

Code:

d(ItemCount(itemid))