function determine_position()
    print("Enter the turtle's current coordinates (make sure the turtle is facing NORTH)")

    term.write("X:")
    x = read()

    term.write("Y:")
    y = read()

    term.write("Z:")
    z = read()
end

function strafe(direction)

    if direction == "right" then
        turtle.turnRight()
        turtle.forward()
        turtle.turnLeft()
    elseif direction == "left" then
        turtle.turnLeft()
        turtle.forward()
        turtle.turnRight()
    end
end

function move_to_position(ex,ey,ez)
    --moving on y axis first
    if y > ey then
        turtle.down()
        y = y - 1
    elseif y < ey then
        turtle.up()
        y = y + 1
    end

    --moving on x axis second
    if y == ey then
        if x > ex then
            strafe("left")
            x = x - 1
        elseif x < ex then
            strafe("right")
            x = x + 1
        end
        print(x)
    end
    --moving on z axis third
    if z == ez then
        if z > ez then
            turtle.forward()
            z = z - 1
        elseif z < ez then
            turtle.back()
            z = z + 1
        end
    end
end

x = -2111
y = 10
z = -99

v = true
while v do
    move_to_position(-2091,4,-99)
end


function get_desired_x()
    term.write("Enter the desired X position:")
    dx_pos = read()

    return dx_pos
end

function get_desired_y()
    term.write("Enter the desired Y position:")
    dy_pos = read()

    return dy_pos
end

function get_desired_z()
    term.write("Enter the desired Z position:")
    dz_pos = read()

    return dz_pos
end

--entry point of program
class = determine_class()


if class == '1' then
    print("Carpet Bomber selected")
    determine_position()

    ex = get_desired_x()
    dx = ex

    ey = get_desired_y()
    dy = ey

    ez = get_desired_z()
    dz = ez

    v = true
    while v do
        move_to_position(ex,ey,ez)
        print("Move")
    end
end