Builder

--Variables

Curslot = 1

--Movement functions

function moveForward(forward)
    for fw = 1, forward do
        turtle.forward()
    end
end

function moveUp(up)
    for up = 1, up do
        turtle.up()
    end
end

function moveDown(down)
    for dw = 1, down do
        turtle.down()
    end
end

--Movement functions

function gotoGround()
    repeat
            turtle.down()
    until
        turtle.detectDown() == true
        turtle.up()
end

function refillMaterials()
    local getItem = turtle.getItemCount(Curslot)
        if getItem < 1 then
            print("No items in current slot.")
            print("Calculating.")
                if Curslot == 16 then
                    turtle.select(1)
                    noMaterials()
                else
                    Curslot = Curslot + 1
                    print("Switching to slot ", Curslot)
                    turtle.select(Curslot)
                end
        end
end

function noMaterials()
    term.clear()
    term.setCursorPos(1,1)
    print("[Error].")
    print("Out of materials please bring me more :(")
    print("press any key to continue...")
    event1, param1 = os.pullEvent()
    refillMaterials()
end

function placeBlock(times)
    for blocks = 1, times do
        refillMaterials()
        turtle.placeDown()
        turtle.forward()
    end
end

-- Build cylinder code
function corner()
    turtle.turnRight()
    turtle.forward()
    turtle.turnLeft()
    placeBlock(1)
    turtle.turnRight()
    turtle.forward()
    turtle.turnLeft()
    placeBlock(1)
    turtle.turnRight()
    turtle.forward()
    turtle.turnLeft()
    placeBlock(1)
    turtle.turnRight()
    turtle.forward()
end


function buildCylinderLayer()
    placeBlock(6)
    corner()
    placeBlock(6)
    corner()
    placeBlock(6)
    corner()
    placeBlock(6)
    corner()
end

function buildCylinder(cylinderHeight)
    for cylheight = 1, cylinderHeight do
        buildCylinderLayer()
        turtle.up()
    end
end
-- Build cylinder code

-- Build wall code

function wallLayer(wlength)
    for Wlen = 1, wlength do
        placeBlock(19)
        turtle.placeDown()
        wallCorner()
        placeBlock(19)
        turtle.forward()
        turtle.placeDown()
        wallCorner()
        turtle.up()
    end
end

function wallCorner()

    turtle.turnRight()
    turtle.forward()
    turtle.forward()
    turtle.forward()
    turtle.forward()
    turtle.forward()
    turtle.turnRight()
end

function wallDirection( direction )
        if direction == 1 then
            print("going left")
            turtle.turnLeft()
            moveForward(1)
            gotoGround()

        elseif direction == 2 then
            print("going forward")
            moveForward(9)
            turtle.turnRight()
            moveForward(4)
            turtle.turnLeft()
            turtle.forward()
            gotoGround()

        elseif direction == 3 then
            print("going right")
            moveForward(5)
            turtle.turnRight()
            moveForward(14)
            gotoGround()

        elseif direction == 4 then
            print("going back")
            turtle.turnRight(2)
            moveForward(4)
            turtle.turnLeft()
            moveForward(9)
            turtle.turnRight()
            turtle.forward()
            turtle.turnLeft()
            moveForward(1)
            gotoGround()
        end
        end
        end
        end
end

function buildWall( wallHeight )
       for wallH = 1, wallHeight do
            wallLayer()
       end
end

-- Build wall code

function nextCylinder(size)

function generateCastle(size)

    term.clear()
    term.setCursorPos(1,1)
    print("How tall should the Castle be?")
    local height = tonumber(read())
    turtle.select(1)

    -- Start building!
    gotoGround()
    buildCylinder(height)
    wallDirection( math.random (1,4) )
    wallLayer(height)

    end
end








    -- Done Building