checking for buff stacks in C_L_E_U

[ObbleYeah]

sure okay, that makes sense. I think I was having issues because i'd swapped a few things round to get it working before (note: not the version i'm using now):

--
--
 
    local fontstring = frame:CreateFontString(nil, "ARTWORK")
    local fontstrings = {}
    
    frame:SetScript("OnEvent", function(self, event, ...)        
        local shown = 0
        
        -- hide any unused ones first
        for i = shown + 1, #fontstrings do
            fontstrings[i]:Hide()
        end
        
        for i = 1, #cfg.spells do
            local spell = cfg.spells[i]
            local _, _, _, stacks = UnitBuff("player", spell.name)
            if stacks and spell.show==true then
                
                shown = shown + 1
                local fontstring = frame:CreateFontString(nil, "ARTWORK")
                fontstrings[shown] = fontstring -- keep them all in another indexed table
                fontstring:SetFont(STANDARD_TEXT_FONT, spell.size, "OUTLINE")
                fontstring:SetShadowOffset(0, 0)
                fontstring:SetText(string.rep(spell.symbol, stacks > 0 and stacks or 1))
                fontstring:SetTextColor(spell.colour[1], spell.colour[2], spell.colour[3])
                fontstring:ClearAllPoints()
                if shown > 1 then
                    fontstring:SetPoint("BOTTOMRIGHT", fontstrings[shown - 1], "TOPRIGHT", 0, -5)
                else
                    fontstring:SetPoint("RIGHT", UIParent, "CENTER", 96, 75)
                end
                fontstring:SetJustifyH("RIGHT")
                fontstring:SetSpacing(2)
                fontstring:Show()
            end
        end
    end)
--
--

Anyway, i've just tried this new method. Here's the full code:

https://gist.github.com/anonymous/1bcb3a092180fa6cf71b

Getting:

1x SpellActivationOverlay.lua:43: attempt to index global "fontstrings" (a nil value)

whenever more than one string tries to show.