GPS turtle

--define--
x = 0
y = 0
z = 0
tx = 0
ty = 0
tz = 0
height = 200
rotation = 1
----------

--functions--
function rotate(w)
    while rotation ~= w do
        rotation = rotation + 1
        turtle.turnRight()
            if rotation == 5 then
                rotation = 1
            end
    end
end

function GoX(cx,gx)

    if cx > gx then
        rotate(4)
            for i = cx, gx + 1, -1 do
                turtle.forward()
                print("gox>")
            end
    elseif cx < gx then
        rotate(2)
            for i = cx, gx - 1 do
                turtle.forward()
                print("gox<")
            end

    end

end

function GoY(cy,gy)

    if cy > gy then
     for i = cy, gy - 1, -1 do
         turtle.down()
         print("goy>")
     end
    elseif cy < gy then
     for i = cy, gy - 1 do
         turtle.up()
         print("goy<")
     end
    end
end

function GoZ(cz,gz)
print("atleast it called")
    if cz > gz then
     rotate(1)
     for i = cz, gz+1, -1 do
      turtle.forward()
      print(i)
     end
    elseif cz < gz then
     rotate(3)
     for i = cz, gz - 1 do
      turtle.forward()
      print(i)
     end
    end
end

function Drop()
end
-------------

--main--
GoY(y,height)
GoX(x,tx)
GoZ(z,tz)
GoY(height,ty)
--------