Halo 3 Retail Game Research

[LuxuriousMeat]

Code: Select all

public enum ImageKey : short
    {
        AButton              = 0x8480,
        BButton              = 0x8481,
        XButton              = 0x8482,
        YButton              = 0x8483,
        LeftShoulderButton   = 0x8484,
        RightShoulderButton  = 0x8485,
        LeftTrigger          = 0x8486,
        RightTrigger         = 0x8487,
        DPadUp               = 0x8488,
        DPadDown             = 0x8489,
        DpadLeft             = 0x848A,
        DPadRight            = 0x848B,
        StartButton          = 0x848C,
        BackButton           = 0x848D,
        LeftThumbStickStick  = 0x848E,
        RightThumbStickStick = 0x848F
    }

That shoudl actually inherit from ushort, not short.

[-DeToX-]

Anyone know where the Map_ID is calculated/grabbed from?

I tried building .info files, so I added an existing map(deadlock.map) and it wont work if I change the map ID in the .info, it must remain the same, so until I know where map_ID is retrieved from, I can't build any new map slots for new maps.

[grimdoomer]

Maby it's in the scenario?

[-DeToX-]

I don't think so... I made a quick check there and didn't see it... It's possible I overlooked it, but I don't think so.

[kornman00]

If you change the id used in the mapinfo files, you have to update the id stored in the map's tag data with the same value. So you won't be doing this anytime soon since you can't resign the maps on retail machines.

Also, any maps you place in the maps directory, along with their associated blf files will be automatically loaded by the game.

[-DeToX-]

If you change the id used in the mapinfo files, you have to update the id stored in the map's tag data with the same value. So you won't be doing this anytime soon since you can't resign the maps on retail machines.

Also, any maps you place in the maps directory, along with their associated blf files will be automatically loaded by the game.

Yep. I posted this before I talked to you on AIM hehe, so its all good now. Thanks for your help. ;p

[Choking Victim]

Still no news on string id's? I know that in the beta you had to add 1173 to the string id value if it was greater than or equal to 1000. But I think that was just a quick fix that didn't always work. I hope that bit of info helps at least :\ .

[DEEhunter]

Code: Select all

0x00 = Battle Rifle
0x01 = Assault Rifle
0x02 = Plasma Pistol
0x03 = Spiker
0x04 = SMG
0x05 = Unknown
0x06 = Energy Sword
0x07 = Magnum
0x08 = Needler
0x09 = Plasma Rifle
0xA = Rocket Launcher
0xB = Shotgun
0xC = Sniper Rifle
0xD = Brute Shot
0xE = Depleted Sword
0xF = Beam Rifle
0x10 = Spartan Laser
0x11 = None
0x12 = Gravity Hammer
0x13 = Mauler
0x14 = Flame Thrower
0x15 = Missile Pod
0xFF = Random

Weapon Enum. Completed by me.

[Shock120]

Is there anyone doing any research on the Halo 3's net code or AI?
Is there anyone planning on trying to make everything sync? from the previous games. like AI, scripts, dialogue/voices etc.

Is there anything that can be learned from Halo 3? which can be added to Halo 1 PC/CE or Halo 2 V.

[grimdoomer]

Is there anyone doing any research on the Halo 3's net code or AI?
Is there anyone planning on trying to make everything sync? from the previous games. like AI etc.

Is there anything that can be learned from Halo 3? which can be added to
Halo 1 PC/CE or Halo 2 V.

You can't take a game and just make things sync. You need the source code. Also since only a select few can actually run unsigned maps, there isnt to much research being conducted.

[TheGeneral]

Hey guys, I was trying to figure out how to decompress Halo 3's asset data and I'm almost 100% sure its compressed with lzma.

If you look at the start of the compressed data blocks in the map file they all start with a 5 byte sequence similar to this.



I'm pretty sure those are the decoder properties for decoding but I cant test with knowing the uncompressed size of the data, which I assume would be located somewhere in else in the map. Another clue that tipped me of is that there were a lot of references to zlib when I searched through the strings of a decompiled xex.

If anyone else has any information that would be great!

[-DeToX-]

I was specifically told that zlib instance isn't actually used with raw.

[Eaton]

Just a guess, but do you think it would use the same compression used for Halo 1 Xbox maps?

[Choking Victim]

Just a guess, but do you think it would use the same compression used for Halo 1 Xbox maps?

Halo 1 xbox maps use zlib...so no.

[TheGeneral]

I read zlib uses a compression method called deflate, I always thought zlib used lzma. So if its not zlib it could still be lzma.

[shade45]

After trying to edit some Unicode strings and having the map fail to load I found out that the unicode index and tables are hashed with SHA-1 and the hash is strored in the matg with the other Unicode information

Here's the updated struct.

Code: Select all

    struct Locale
    {
        int Count;
        int Size;
        int TableIndexOffset; // Address
        int TableOffset;      // Address
        byte[] IndexHash;    // Len20
        byte[] TableHash;    // Len20
        byte[] Unused;    // Len12
    }

[grimdoomer]

Nice Find!

[SPARTAN-OMEGA]

Very nice find.

[-DeToX-]

After trying to edit some Unicode strings and having the map fail to load I found out that the unicode index and tables are hashed with SHA-1 and the hash is strored in the matg with the other Unicode information

Wasn't that posted here already..? Swear it was.

[shade45]

After trying to edit some Unicode strings and having the map fail to load I found out that the unicode index and tables are hashed with SHA-1 and the hash is strored in the matg with the other Unicode information

Wasn't that posted here already..? Swear it was.

Not sure. I didn't want to search 30+ pages though.