Time for action – Using enums

That's all well and good, but how do we use them? Let's set one up in our AwesomeActor class.

1. Add the enum below our class line.

   enum EAltitude
   {
       ALT_Underground,
       ALT_Surface,
       ALT_Sky,
       ALT_Space,
   };

   The E isn't necessary, but it helps to follow standard guidelines to make things easier to read.

2. Now we need to declare a variable as that enum type. This is similar to declaring other variables.

   var EAltitude Altitude;

3. Now we have a variable, Altitude, that's been declared as the enum type EAltitude . Enums default to the first value in the list, so in this case it would be ALT_Underground . Let's see if we can change that in our PostBeginPlay function.

   function PostBeginPlay()
   {
       Altitude = ALT_Sky;
       'log("Altitude:" @ Altitude);
   }

   Now our class should look like this:

   class AwesomeActor extends Actor
       placeable;
   
   enum EAltitude
   {
       ALT_Underground,
       ALT_Surface,
       ALT_Sky,
       ALT_Space,
   };
   
   var EAltitude Altitude;
   
   function PostBeginPlay...