Unity.EventsSystem Interfaces Pt. 1

In this article I wanna briefly go over some interfaces that can be found using the Unity.EventsSystem. There are some interfaces that we can use that are associated with where the in game cursor is and when we press something.

I have a class called ChargeButton this script is inheriting from MonoBehavior, but it is also inheriting from 4 of these Unity.EventsSystems interfaces which are IPointerDownHandler, IPointerUpHandler, IPointerEnterHandler, and IPointerExitHandler.

IPointerEnterHandler is called when the cursor begins to hover over the item with this interface. IPointerExitHandler is called when the cursor leaves the item. IPointerDownHandler is called when you press on the item and the button is in the down position. IPointerUpHandler is called when you release the button press and the button goes back to the up position.

The image above is the method that is on the interface script that we must use if inheriting from one of the interfaces. These interfaces don’t need to be called manually they are automatically called when you perform the action. Besides that you can treat these methods as any other method and have the object do whatever you need it to do. The eventdata variable can also be accessed inside the method for alot of different useful things.

The video above shows all that you can access with eventData. As you can see there is alot you can do with this so I will leave you with the rest to go explore this.