function onUse(use)
    if count == 9 then
        count = 0
    else
        count = count + 1
    end
    SetCounterOffset(count)
end

function SetCounterOffset(count)
    local offset = Vector2.zero
 
    -- y shift
    local Yshift = math.floor(count / 4)    
    offset.y = -0.25 * Yshift
 
    -- x shift
    local Xshift = count % 4
    offset.x = 0.25 * Xshift
 
    vci.assets.material.SetTextureOffsetFromIndex(1, offset)
end