Depth Sorting For GameMaker Studio 2

Before GameMaker Studio 2, it was easy to draw objects at the correct depth for isometric games:  all one had to do was write depth=-y in their draw event.

Unfortunately, that is no longer possible.   One must now come up with their own hackish solution.  But fear not!  draw_self_isometric() has come to the rescue! All you need to do is paste it in your object's pre-draw event.

Credit to FriendlyCosmonaut for the basic idea,  Bleed for the Crusader sprites, and Jacky Martin for the grass tiles.