AltProto_Spawner

local monitor = peripheral.find("monitor")
local rside = "back"

local w, h

if monitor then
    monitor.setTextScale(0.5)
    w, h = monitor.getSize()
end

local function CenterPrint(text, y)
    monitor.setCursorPos((w - #text) / 2 + 1, y)
    monitor.write(text)
end

local atPos = math.floor(h / 2)
local itPos = math.floor(h / 2) + 1

function SetActive(active)
    local file = fs.open("altproto-spawnerstate", "w")
    file.write(tostring(not not active))
    file.close()
    redstone.setOutput(rside, not active)

    if monitor then
        monitor.setTextColor(colors.white)
        if active then
            monitor.setBackgroundColor(colors.green)
            monitor.clear()
            CenterPrint("Active", atPos)
        else
            monitor.setBackgroundColor(colors.red)
            monitor.clear()
            CenterPrint("Inactive", atPos)
        end

        monitor.setTextColor(colors.lightGray)
        CenterPrint("Right click", itPos)
        CenterPrint("to toggle", itPos + 1)
    end
end

local active = false


local file = fs.open("altproto-spawnerstate", "r")
if file then
    active = file.readAll() == "true"
    file.close()
end


OnMessage(function(id, recipient, sender, data)
    SetActive(data)
end, "SETSPAWNER")


OnEvent(function(event, side)
    if not monitor and peripheral.getType(side) == "monitor" then
        monitor = peripheral.wrap(side)

        monitor.setTextScale(0.5)
        w, h = monitor.getSize()
        Log("Monitor attached")
    end
end, "peripheral")


OnEvent(function(event, side)
    if monitor and peripheral.getType(side) == "monitor" then
        monitor = nil
        Log("Monitor detached")
    end
end, "peripheral_detach")



SetActive(active)



OnEvent(function(event, side, x, y)
    active = not active
    SetActive(active)
end, "monitor_touch")