airlock_controller

-- API --------------------------------------------------

local w, h = term.getSize()

function printCentered(y, str)
   local x = math.floor((w - string.len(str)) / 2)
   term.setCursorPos(x, y)
   term.clearLine()
   term.write(str)
end

function printThird(y, third, str)
    local third_width = w / 3

    -- Centre position of the requested third
    local centre_x = (third - 0.5) * third_width

    local x = math.floor(centre_x - (#str / 2))

    term.setCursorPos(x, y)
    term.write(str)
end

function hasValue (tab, val)
    for index, value in ipairs(tab) do
        if value == val then
            return true
        end
    end

    return false
end

function printKeys(tab)
    -- Source - https://stackoverflow.com/a/12674376
    -- Posted by lhf
    -- Retrieved 2026-06-11, License - CC BY-SA 3.0

    local keyset={}
    local n=0

    for k,v in pairs(tab) do
        n=n+1
        keyset[n]=k
    end

    print(textutils.serialise(keyset))
end

function printTable(tab)
    for key, val in pairs(tab) do
        print(tostring(key) .. ": " .. tostring(val))
    end
end

---------------------------------------------------------

-- State here is defined as false=closed,true=open
-- The Airlock door that transitions from planet to airlock
local airlock_enter_state = false
-- The Airlock door that transitions from airlock to inside
local airlock_exit_state = false

function main()
    local airlock_enter_state_reader = peripheral.find("blockReader")
    printTable(airlock_enter_state_reader.getBlockStates())
    airlock_enter_state = airlock_enter_state_reader.getBlockStates()["open"]

    print(airlock_enter_state)

    while true do
        if redstone.getInput("back") == true then
            print("Button Pressed!")
            break
        end

        os.sleep(0.1)
    end
end

main()