wall builder

-- uses hobo api t. ver 3.1.1

local turns = 0
local height = 0
local maxheight = 0
local distance = 1
local maxdistance = 0

print("This makes a 4 walls of equal height and length")
print("It will make right turns at the end of each wall to make a box")
print("place the turtle on the floor of a corner and make sure the area is clear")

print("")

print("How tall should the wall be ?")

maxheight = tonumber(read())

print("How long Should the wall be")

maxdistance = tonumber(read())

print("The wall will be ".. maxheight.." blocks tall and " .. maxdistance.." blocks long")

local blockcount = maxheight * maxdistance * 4

print("The wall needs "..blockcount.." blocks")

print("Make sure the turtle has fuel and the wall block is in slot 1")

print("Start Y/N")

local ready = read()

if ready ~= "y" and ready ~= "Y" then
    return

end

select(1)
local blockCount = turtle.getItemCount()
local wallblock = turtle.getItemDetail()


local selected = {}
local function findBlock()

    for i = 1 , 16 do
        turtle.select(i)
        if turtle.getItemCount() ~= 0 then
            selected = turtle.getItemDetail()
            if selected.name == wallblock.name then
                blockCount = turtle.getItemCount()
                return
            end
        end
    end

end


local function WallUp()
    t.up()
    height = height + 1
    if blockCount == 0 then
        findBlock()
    end
    turtle.placeDown()
    blockCount = blockCount - 1

end

-- define wall block

turtle.select(1)


-- start

while turns < 4 do

while distance ~= maxdistance do

    if height ~= maxheight then
        WallUp()

    else

        t.forward()
        distance = distance + 1
        while height ~= 0 do
            t.down()
            height = height - 1
        end

    end

end
turtle.turnRight()
turns = turns + 1
distance = 1
end