Minecraft - Thaumcraft - Essentia Inventory

args = {...}
ThaumComp = {
}
ThaumComp_mt = {__index = ThaumComp}

function ThaumComp:create()--{{{
    local new_ThaumComp = {}
    setmetatable(new_ThaumpComp, ThaumComp_mt)
    return new_ThaumComp
end--}}}
function ThaumComp:getJars()--{{{
    self.jars = {}

    -- get ethereal jars
    local peripherals = peripheral.getNames()
    for n, p in pairs(peripherals) do
        local peripheral_type = peripheral.getType(p)
        if peripheral_type == "tilejar" or peripheral_type == "tileetherealjar" or peripheral_type == "tileessentiacontainer" or peripheral_type == "tilejarvoid" then
            table.insert(self.jars, peripheral.wrap(p))
        end
    end
end--}}}
function ThaumComp:displayJars()--{{{
    print(#self.jars)
end--}}}

function ThaumComp:takeInventory()--{{{
    -- reset inventory
    self.inventory = {}

    -- get jars
    self:getJars()

    -- get aspect of jar and quantity
    for jarnum, jar in pairs(self.jars) do
        jar_contents = jar.getAspects()
        if #jar_contents > 0 then
            -- if there is an aspect in jar
            if not self.inventory[jar_contents[1].name] then
                -- if aspect not in aspect list then set aspect to jar quantity
                self.inventory[jar_contents[1].name] = jar_contents[1].quantity
            else
                -- else add jar quantity to aspect value
                self.inventory[jar_contents[1].name] = self.inventory[jar_contents[1].name] + jar_contents[1].quantity
            end
        end
    end
end--}}}
function ThaumComp:displayInventory()--{{{
    term.clear()
    term.setCursorPos(1,1)
    for aspect, quantity in pairs(self.inventory) do
        write(aspect .. ": " .. quantity .. ", ")
    end
end--}}}

tc = ThaumComp
tc.timer = os.startTimer(1)

while true do
    local event, param1, param2, param3 = os.pullEvent()
    if event == "peripheral" then
        tc:takeInventory()
    elseif event == "timer" then
        tc:takeInventory()
        tc:displayInventory()
        tc.timer = os.startTimer(1)
    elseif event == "key" then
        if param1 == keys.s then
            tc:displayInventory()
        elseif param1 == keys.j then
            tc:getJars()
        elseif param1 == keys.k then
            tc:displayJars()
        elseif param1 == keys.i then
            tc:takeInventory()
        end
    end
end