function onLoad()
    Wait.time(countItems, 2.0, -1)
end

function countItems()
    local bounds = self.getBounds()
    local vertical_bound = 1

    local hits = Physics.cast({
        origin = {
            x = bounds.center.x,
            y = bounds.center.y + bounds.size.y + vertical_bound / 2,
            z = bounds.center.z,
        },
        direction = {0, 0.001, 0},
        type = 3,
        size = {
            x = bounds.size.x,
            y = vertical_bound,
            z = bounds.size.z,
        },
        orientation = self.getRotation(),
        max_distance = 1,
        --debug = true
    })

    -- tally token totals
    -- A table that defaults to 0, and each object's name is matched for "amount label"
    total = {}

    for i, v in pairs(hits) do
        name = v.hit_object.getName()
        if name != nil then
            amount, label = string.match(name, '(%d+) (%a+)s?')
            total[label] = (total[label] or 0) + amount
        end
        -- v.hit_object.highlightOn({0, 1, 0}, 10)
    end

    for k, v in pairs(total) do
        print(v, ' ', k)
    end
end