Wall by Big SHiny Toys

local tArgs = {...}
local iSlot = 1
local bDebug = false
local function printUsage()
    print("Wall <Distance> <hight>")
end
local function refuel()
    local slotSelX,slotSelY = 1,1
    print("use [Up Dwon Left Right] keys to seleft fuel slot")
    print([[Press "r" refuel or "c" to continue]])
    while true do
        local e,e1,e2,e3 = os.pullEvent()
        if e == "key" then
            if e1 == 200 then -- up turtle.select(e1-1)     local slotSelX = 1  local slotSelY = 1
                slotSelY = slotSelY -1
                if slotSelY < 1 then
                    slotSelY = 4
                end
            elseif e1 == 208 then -- down
                slotSelY = slotSelY +1
                if slotSelY > 4 then
                    slotSelY = 1
                end
            elseif e1 == 203 then -- left
                slotSelX = slotSelX -1
                if slotSelX < 1 then
                    slotSelX = 4
                end
            elseif e1 == 205 then -- right
                slotSelX = slotSelX +1
                if slotSelX > 4 then
                    slotSelX = 1
                end
            elseif e1 == 19 then -- r
                turtle.refuel(1)
            elseif e1 == 46 then -- c
                break
            end
        end
        turtle.select(slotSelX+(slotSelY*4)-4)
    end
    return
end
local function funtUP()
    while not turtle.up() do
        if turtle.getFuelLevel() > 1 then
        sleep(1)
        else
            print("Turtle fuel Levle : "..turtle.getFuelLevel())
            refuel()
        end
    end
end

local function funtForward()
    while not turtle.forward() do
        if turtle.getFuelLevel() > 1 then
        sleep(1)
        else
            print("Turtle fuel Levle : "..turtle.getFuelLevel())
            refuel()
        end
    end
end

local function checkFor()
    for i = 16,1,-1 do
        local iTotal = turtle.getItemCount(i)
        if bDebug then
            write(tostring(iTotal).." ")
        end
        if iTotal > 0 then
            iSlot = i
            turtle.select(iSlot)
            turtle.placeDown()
            return true
        end
    end
    return false
end

local function fplace()
    local found = false
    turtle.select(iSlot)
    if turtle.getItemCount(iSlot) > 0 then
        turtle.placeDown()
        return true
    else
        if not checkFor() then
        print([[No Items in turtle fill turtle and press "c" to continue]])
        while true do
            local e,e1 = os.pullEvent("char")
            if e == "char" and e1 == "c" then
                if checkFor() then
                    return
                else
                    print("\nNo blocks added")
                end
            end
        end
        else
            return
        end
    end
end

local function buildWall(inputlength,inputhight)
        funtUP()
        fplace()
    for p = 1,inputhight do
        for x = 1,inputlength-1 do
            funtForward()
            fplace()
        end
        if p ~= inputhight then
        funtUP()
        fplace()
        turtle.turnLeft()
        turtle.turnLeft()
        end
    end
end

if #tArgs == 3 then
    if tArgs[3] == "test" then
        bDebug = true
    end
    table.remove(tArgs,3)
end

if #tArgs ~= 2 then
    printUsage()
else
    local iDistance,iHight = tonumber(tArgs[1]),tonumber(tArgs[2])
    if iDistance == nil or iHight == nil then
        printUsage()
    else
    print("Turtle fuel Levle : "..turtle.getFuelLevel())
    buildWall(iDistance,iHight)
    print("\nFinished wall")
    end
end