Mouse Based Menu

---

This example shows how to use objects to create clickable menu buttons.  Each object uses a unique sprite with 2 sub-images.  The first sub-image is the regular button graphic.  The second sub-image is displayed when the player hovers over the button.  When clicked, each button goes to a different room that has a back button in it to return to the main menu.  In order to avoid repetition of code, there is a parent object that contains all the code.  All other button objects use obj_menu_start_parent as a parent.