room

os.loadAPI("tur")

up = function (hei, front)
    for i=1, hei-1 do
        if front then tur.digSafe() end
        tur.upForce()
    end
    if front then tur.digSafe() end
 tur.downForce(hei-1)
end

row = function (len, hei)
    for i=1, len/2 do
        if i ~= 1 then tur.forwardForce(2) end
        up(hei, true)
    end
    if len%2 == 1 then
        tur.forwardForce(2)
        up(hei, false)
        tur.back()
    end
    tur.back(len-2)
end

subRoom = function (len, hei, wid, dir)
    for i=1, wid do
        if i~=1 then
            if dir=="right" then
                tur.strafeRightForce()
            else
                tur.strafeLeftForce()
            end
        end
        row(len, hei)
    end
    if dir=="right" then
        tur.strafeLeftForce(wid-1)
    else
        tur.strafeRightForce(wid-1)
    end
end

args = {...}
wid = args[1]+0
len = args[2]+0
hei = args[3]+0
start = args[4]

if start == "right" then
    subRoom(len,hei,wid,"left")
elseif start == "middle" then
    subRoom(len,hei,wid/2+1,"right")
    tur.strafeLeftForce()
    subRoom(len,hei,wid/2,"left")
    tur.strafeRightForce()
else
    subRoom(len,hei,wid,"right")
end