I wanted to make a thread and point out the differences between the BTI and BTII engines on the C64 versions of the game.
So far, I've discovered that the memory locations $0028 and $0029 in both games hold the party's current N and E location.
In BTI, The dungeon walls/doors are held in memory at $f800. In BTII, this appears not to be the case.
Also, in BTI, the dungeon event map is stored in memory at $fa00. In BII, this also appears not to be the case.
Other differences, dungeon-wise at least, are:
- In BTII, you can have as many Anti-magic squares as you like (obviously, they found a way to include these squares in the event map). In BTI, you were stuck having a maximum of 16 and having to set them as "special" squares on the event map.
- There are specific BTII-only dungeon hazards, specifically: "Odd..." squares, hazards specifically called "Spinners", Silence zones, HP regeneration zones, and SP drain zones.
- In BTII, the follow hazards were done away with: 'Stasis' squares and "Smoke in your eyes!"
- Also in BTII, the spell "SCSI" will not be cancelled by an Anti-magic square.
Other interesting tidbits/notes to come.