minetest.register_abm({  -- Controls the contained fires.
    nodenames = {'mapop:fireplace', 'mapop:fireplace_on'},
    interval = 1.0,
    chance = 1,
    action = function(pos, node, active_object_count, active_object_count_wider)
        local meta = minetest.env:get_meta(pos)
        for i, name in ipairs({
        'fuel_totaltime',
        'fuel_time',
        }) do
        if meta:get_string(name) == '' then
            meta:set_float(name, 0.0)
            end
        end
        local meta = minetest.get_meta(pos)
        local inv = meta:get_inventory()
        local was_active = false
        if meta:get_float('fuel_time') < meta:get_float('fuel_totaltime') then
            was_active = true
            meta:set_float('fuel_time', meta:get_float('fuel_time') + 0.25)
            end
        if meta:get_float('fuel_time') < meta:get_float('fuel_totaltime') then
            minetest.sound_play({name='fire_small'},{gain=0.07},
            {loop=true})
            local percent = math.floor(meta:get_float('fuel_time') /
            meta:get_float('fuel_totaltime') * 100)
            meta:set_string('infotext','Fireplace active: '..percent..'%')
            minetest.swap_node(pos, {name = 'mapop:fireplace_on', param2 = node.param2})
            meta:set_string('formspec', mapop.fireplace_formspec)
            return
            end
            local fuel = nil
            local fuellist = inv:get_list('fuel')
            if fuellist then
                fuel = minetest.get_craft_result({method = 'fuel', width = 1, items = fuellist})
            end
            if not fuel then return end -- 231109 RJK: Fix a crash
            if fuel.time <= 0 then
                local node = minetest.get_node(pos)
                if node.name == 'mapop:fireplace_on' then
                    meta:set_string('infotext','Put more wood in the fireplace!')
                    minetest.swap_node(pos, {name = 'mapop:fireplace', param2 = node.param2})
                    meta:set_string('formspec', mapop.fireplace_formspec)
                    local timer = minetest.get_node_timer(pos)
                    timer:start(190)
                end
            return
        end
        meta:set_string('fuel_totaltime', fuel.time)
        meta:set_string('fuel_time', 0)
        local stack = inv:get_stack('fuel', 1)
        stack:take_item()
        inv:set_stack('fuel', 1, stack)
end,
})