# define and enum

The define keyword allows you to assign new names to words. You can use the define keyword on nearly any word.

Examples:

    (define rsVIEW $80) ; replaces any occurance of rsVIEW with $80 at compile time
    (define PIC_OPEN_FROM_RIGHT 2)

The enum keyword lets you define symbols for sequentially increasing values. For instance, in the following example, DOOR_OPEN will be equal to 0, DOOR_OPENING will be equal to 1, and so on:

    ; Some door states
    (enum
            DOOR_OPEN
            DOOR_OPENING
            DOOR_CLOSED
            DOOR_CLOSING
    )

You can also specify a starting number for the enum values:

    (enum 8
            DOOR_OPEN               ; this will be 8
            DOOR_OPENING    ; this will be 9
            DOOR_CLOSED             ; this will be 10, and so on...
    )