Fixing AGI Game Detection
|Reported by:||SF/metafox||Owned by:||sev-|
VIEWDIR is not the common file among AGI games. That
would be OBJECT.
King's Quest IV is detected and works fine when OBJECT
is used as the common base for AGI games. When it is
not, it is not detected due to the game not having a
Ticket imported from: #1512689. Ticket imported from: patches/655.