This variable holds the current orientation of the path. When a
path is created, its orientation is the default 0 degrees, but you
can set this value to anything you wish using this. Remember that
in GameMaker: Studio (unless you are using physics) the
angles are calculated counter-clockwise, so setting the path
orientation to 90° would rotate the path to the left.
mypath = path_duplicate(choose(path_1, path_2,
path_orientation = 90;
The above code duplicates a random, pre-made path resource into the variable "mypath". This new path is then rotated 90°.