GME Game programming about tip-toi-reveng HOT 7 CLOSED

I managed to fix the game in the sense that this mission becomes playable.

Unfortunately there are "holes" in the GME file such that tttool cannot export and assemble a working game.
Nevertheless, from looking very hard (and way longer than I had hoped for) at the program logic, I deduced that the OID to change was in an unknown section of one of the subgames

    unknown: 01 00 DE 31 01 00 02 00 00 00 3C 00 00 00 00 00 00 00 00 00

the OID of the missing card is 12766 / 0x31de and using a hex editor I changed this to OID 12765 / 0x31dd of a card we have. Playing the right meda file told us what is written on the card, so the mission can be finished now.

@nomeata thanks for this tool!

from tip-toi-reveng.

There are, but they are not checked :-D

from tip-toi-reveng.

It depends a bit on how that gme file is programmed. If it contains “binaries”, i.e. logic in machine code, then you cannot edit the gme file with tttool without losing functionality.

So the first thing you could try is to disassemble and assemble the file, load it onto the stick, and see if stuff still works.

from tip-toi-reveng.

@nomeata thanks, I will try that.
In the extracted yaml there are unknown entries for the games, could that be a problem?
for example:

  subgames:
  - oids1: 1 2 3 4 5 88
    unknown: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
    oids3: ''
    oids2: ''
    playlist:
    - '344'
    - '345'
    - 346,343
    - 347,348,349
    - 350,351,352
    - []
    - []
    - []
    - []

from tip-toi-reveng.

Since you just want to change some oids somewhere, it might be ok. You'll see :-D

from tip-toi-reveng.

Great to hear that!

from tip-toi-reveng.

luckily there are no checksums

from tip-toi-reveng.