-- Configuration for the additional computer
local modem = peripheral.wrap("top") -- Ender modem on the top
modem.open(1) -- Open channel 1 to listen for messages

-- Function to initialize all redstone signals to 0 at startup
local function initializeRedstone()
    rs.setBundledOutput("bottom", 0) -- Set all bundled signals to 0
    rs.setOutput("bottom", false) -- Turn off main redstone signal
end

initializeRedstone() -- Set signals to 0 at the first startup

-- Processing messages and controlling redstone
while true do
    local event, side, channel, replyChannel, message, distance = os.pullEvent("modem_message")
    if channel == 1 then
        local id = message.id
        local state = message.state

        -- If ID is "grinder", set main redstone signal on the bottom
        if id == "grinder" then
            rs.setOutput("bottom", state)
        elseif type(id) == "number" and id >= 1 and id <= 16 then
            -- Use `setBundledOutput` for individual switches
            local color = 2 ^ (id - 1) -- Convert ID to the appropriate color bit
            local currentOutput = rs.getBundledOutput("bottom")
            if state then
                rs.setBundledOutput("bottom", bit.bor(currentOutput, color))
            else
                rs.setBundledOutput("bottom", bit.band(currentOutput, bit.bnot(color)))
            end
        end
    end
end