Questions with Adventure.

[Nukey Shay]

That's a lotta special coding...it might be simpler just to edit the game to have 2 RoomDataTables instead. This table is huge, however...taking up well over 1 page of memory. Extremely flexible tho, since you can have different GFX, custom colors and room links devoted to the alternate world level.

To accomplish this, just add in a new table (RoomDataTable2), and place it in memory at the same point of a page that the original exists at. The original in your assembly exists at a page break ($FE00)...so the added one can go in the page break 2 pages below this ($FC00). Then alter the RoomNumToAddress routine:

 

lower case lines added...

RoomNumToAddress:
      STX    Temp              ;save X                                      ;3


;added-------------------
      ldx    Level              ;                                            ;3
      cpx    #$06              ;Level 4?                                    ;2
      bne    roomnumtoaddress2  ;Branch if not                                ;2
      ldx    #>RoomDataTable2  ;initialize the high pointer                  ;2
      .byte $2C                ;skip next 2 bytes                            ;4
roomnumtoaddress2:
;------------------------

      LDX    #>RoomDataTable    ;initialize the high pointer                  ;2
;...etc.

Edited May 13, 2005 by Nukey Shay