In the sixth lesson, we generalized our code in order to be able to rotate our stitch around it's corner. Now we want to take our code and put it into a function, and take the key parameters within that code and rework them as arguments to that function. Now we can draw a stitch just by executing this function with values for the size, position, number of lines and rotational angle.
Having put our code to draw a single stitch into a neat function, we can now easily start creating more elaborate patterns. For example, here I have called this function 4 times. The only thing I change for each of these four calls of that function is the rotational angle that we input to that function. This gives us a cool-looking 4-pointed-star pattern.