Build: Tank per MarcusKron

--STEEL TANK = 189 STEEL GLASS= 195

function selectTank()
    if turtle.getItemCount(1) == 0 then
        if turtle.getItemCount(2) > 0 then
            turtle.select(2)
        else
            if turtle.getItemCount(3) > 0 then
                turtle.select(3)
            else
                turtle.select(4)
            end

        end
    else
        turtle.select(1)
    end
end

function selectGlass()
    if turtle.getItemCount(5) == 0 then
        if turtle.getItemCount(6) > 0 then
            turtle.select(6)
        else
            if turtle.getItemCount(7) > 0 then
                turtle.select(7)
            else
                turtle.select(8)
            end

        end
    else
        turtle.select(5)
    end
end

--CREA LA BASE
turtle.up()
turtle.forward()
for i = 1, 4 do
    for a = 1, 9 do
         selectTank()
        turtle.placeDown()
        turtle.forward()
    end
    turtle.turnLeft()
    turtle.forward()
    turtle.turnLeft()
    turtle.forward()
    for b = 1,9 do
        selectTank()
        turtle.placeDown()
        turtle.forward()
    end
    turtle.turnRight()
    turtle.forward()
    turtle.turnRight()
    turtle.forward()
end
    for j = 1, 9 do
         selectTank()
        turtle.placeDown()
        turtle.forward()
    end

-- CREA IL CORPO
-- CREA LA 1 RIGA

    turtle.turnLeft()
    turtle.turnLeft()
    turtle.forward()
    turtle.up()

    selectTank()
    turtle.placeDown()
    for i  = 0,7 do
        selectGlass()
        turtle.placeDown()
        turtle.forward()
    end
    selectTank()
    turtle.placeDown()
    turtle.turnLeft()
    turtle.forward()
    for j = 1, 3 do
        selectGlass()
        turtle.placeDown()
        turtle.forward()
    end
    turtle.select(9)
    turtle.placeDown()
    turtle.forward()
    for k = 1,3 do
        selectGlass()
        turtle.placeDown()
        turtle.forward()
    end
    selectTank()
    turtle.placeDown()
    turtle.turnLeft()
    for d = 0,7 do
        selectGlass()
        turtle.placeDown()
        turtle.forward()
    end
    selectTank()
    turtle.placeDown()
    turtle.turnLeft()
    for e = 0, 7 do
        selectGlass()
        turtle.placeDown()
        turtle.forward()
    end
    turtle.turnLeft()

--CREA IL RESTO DEL CORPO
    for z = 1, 5 do
        turtle.up()
        for y = 1, 4 do
            if turtle.detectDown() == false then
                selectTank()
                turtle.placeDown()
                turtle.forward()
            else
                turtle.forward()
            end
            for x = 1,7 do
                selectGlass()
                turtle.placeDown()
                turtle.forward()
            end
            if turtle.detectDown() == false then
                selectTank()
                turtle.placeDown()
                turtle.turnLeft()
            else
                turtle.turnLeft()
            end
        end
    end

--CREA IL TETTO

    turtle.up()
    for y = 1,2 do
        for s = 1, 9 do
            selectTank()
            turtle.placeDown()
            turtle.forward()
        end
        turtle.turnLeft()
        turtle.forward()
        turtle.turnLeft()
        turtle.forward()
        for r = 1, 9 do
            selectTank()
            turtle.placeDown()
            turtle.forward()
        end
        turtle.turnRight()
        turtle.forward()
        turtle.turnRight()
        turtle.forward()
    end

    for i = 1, 4 do
        selectTank()
        turtle.placeDown()
        turtle.forward()
    end
    turtle.select(9)
    turtle.placeDown()
    turtle.forward()
    for b = 1, 4 do
        selectTank()
        turtle.placeDown()
        turtle.forward()
    end

    turtle.turnLeft()
    turtle.forward()
    turtle.turnLeft()
    turtle.forward()

    for w = 1,2 do
        for s = 1, 9 do
            selectTank()
            turtle.placeDown()
            turtle.forward()
        end
        turtle.turnRight()
        turtle.forward()
        turtle.turnRight()
        turtle.forward()
        for r = 1, 9 do
            selectTank()
            turtle.placeDown()
            turtle.forward()
        end
        turtle.turnLeft()
        turtle.forward()
        turtle.turnLeft()
        turtle.forward()
    end