Roomdigger by Clueless

local tArgs = { ... }
-- check number of arguments
if #tArgs < 3 or #tArgs > 4 then
error("Usage: room <depth> <height> <width>")
end

depth = tonumber(tArgs[1])
height = tonumber(tArgs[2])
width = tonumber(tArgs[3])

print("Digging Room D"..tArgs[1].."xH"..tArgs[2].."xW"..tArgs[3]);
-- move forward to create room
turtle.dig()
turtle.forward()
-- adjust depth for the step
depth = depth - 1
-- create room
for widthTemp = 1, width do
for heightTemp = 1, height do
for depthTemp = 1, depth do
-- dig straight forward
while turtle.detect() do
turtle.dig()
os.sleep(1) -- needed to work with gravel
end
turtle.forward()
                end
                -- line complete, move to next line
                if heightTemp<height then
while turtle.detectUp() do
turtle.digUp()
end
                        turtle.up()
                        turtle.turnLeft()
                        turtle.turnLeft()
end
end
        -- slice complete, return to start
        -- move back on odd heights, otherwise we are already back
        if height % 2 == 1 then
                turtle.turnLeft()
                turtle.turnLeft()
                for depthTemp=1, depth do
                        turtle.forward()
            os.sleep(1)
                end
        end
        -- move down
        for heightTemp=0, height-1 do
                turtle.down()
end
        -- next slice
        if widthTemp<width then
                turtle.turnLeft()
while turtle.detect() do
turtle.dig()
end
                turtle.forward()
                turtle.turnLeft()
        end
end