Croc 2 Notes

2021-02-22

Binary Hash

$ sha1sum Croc2.exe
c7e9ed848e311706dde83116fd122a0b28b99261  Croc2.exe

Embedded Music Table

croc2exemusictable.bt

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26


LittleEndian();
FSeek(0xA46FC);

typedef struct {
    uint32 flags;
    char filename[12];
    uint32 unk;
    uint32 nameptr <format=hex>;

    local uint32 pos = FTell();

    FSeek(nameptr - 0x400000);
    string name;

    FSeek(pos);
    uint32 unk2<format=hex>;
} musicdef<read=xxread>;

string xxread(musicdef& d)
{
    string s;
    SPrintf(s, "[%s] - [%s]", d.filename, d.name);
    return s;
}

musicdef music[47]<optimize=false>;

Struct	File	Title	Offset	Size
struct musicdef music[0]		No Track	A46FCh	28
struct musicdef music[1]	JHUB1	Hub Tribe 1	A4718h	28
struct musicdef music[2]	KWATERFALL	Waterfall	A4734h	28
struct musicdef music[3]	CBK2	Cannon Boat Keith	A4750h	28
struct musicdef music[4]	KBARREN3	Barren Three	A476Ch	28
struct musicdef music[5]	JMINE2	The Mine	A4788h	28
struct musicdef music[6]	KCAVE1	Cave One	A47A4h	28
struct musicdef music[7]	JICECAVE	Ice Cave	A47C0h	28
struct musicdef music[8]	KJUNGLE3	Jungle Two	A47DCh	28
struct musicdef music[9]	JBARREN1	Barren Wheels One	A47F8h	28
struct musicdef music[10]	KDANTE1	Dante One	A4814h	28
struct musicdef music[11]	KCMCAVE	Caveman Cave One	A4830h	28
struct musicdef music[12]	KSOVEENA	Soveena	A484Ch	28
struct musicdef music[13]	KBARREN1	Barren Wheels Two	A4868h	28
struct musicdef music[14]	KGLIDE	Glider	A4884h	28
struct musicdef music[15]	KLLLARRY	Lava Lamp Larry	A48A0h	28
struct musicdef music[16]	JBARREN2	Forest Barren	A48BCh	28
struct musicdef music[17]	JICE2	Ice Land	A48D8h	28
struct musicdef music[18]	JJUNGLE3	Find The Key	A48F4h	28
struct musicdef music[19]	KSNOWBALL	Snowball	A4910h	28
struct musicdef music[20]	JTHIEFJUNGLE	Thief Jungle	A492Ch	28
struct musicdef music[21]	JTHIEFCAVE	Thief Cave	A4948h	28
struct musicdef music[22]	JGOLDROCK	Gold Rock Race	A4964h	28
struct musicdef music[23]	JICECAVE	Ice Cave One	A4980h	28
struct musicdef music[24]	CHOOCAVE	Choo Cave	A499Ch	28
struct musicdef music[25]	CHOOOUT	Choo Outside	A49B8h	28
struct musicdef music[26]	KRIVERRACE	River Race	A49D4h	28
struct musicdef music[27]	KDANTE2	Dante Two	A49F0h	28
struct musicdef music[28]	GTOWER	Goo Manchoo Tower	A4A0Ch	28
struct musicdef music[29]	CBKLEAD	CBK Lead Up	A4A28h	28
struct musicdef music[30]	KFLAVIO	Flavio	A4A44h	28
struct musicdef music[31]	KDUNGEON	Dungeon	A4A60h	28
struct musicdef music[32]	JINCA1	Inca Babies One	A4A7Ch	28
struct musicdef music[33]	JHUB2	Hub Tribe 4	A4A98h	28
struct musicdef music[34]	JHUB1	Hub Tribe 3	A4AB4h	28
struct musicdef music[35]	KMASHER	Masher	A4AD0h	28
struct musicdef music[36]	JREDANT1	Red Ant Lair	A4AECh	28
struct musicdef music[37]	JREDANT120	Red Ant Bomb	A4B08h	28
struct musicdef music[38]	KINCACAVE	Inca Babies Two	A4B24h	28
struct musicdef music[39]	JHUB2	Hub Tribe 2	A4B40h	28
struct musicdef music[40]	JVENUS	Venus	A4B5Ch	28
struct musicdef music[41]	JVENUSLEAD	Venus Lead Up	A4B78h	28
struct musicdef music[42]	KMASHERLEAD	Masher Lead Up	A4B94h	28
struct musicdef music[43]	JTITLE	Croc’s Theme	A4BB0h	28
struct musicdef music[44]	KCMCAVE2	Caveman Cave Two	A4BCCh	28
struct musicdef music[45]	KSOVEENALEAD	Soveena Lead Up	A4BE8h	28
struct musicdef music[46]	JREDANT25	Red Ant Fast Lair	A4C04h	28

Notes

There’s a few duplicate entries for JHUB1 and JHUB2. Presumably there was going to be different music for the Caveman and Inca tribes, but they ran out of time.
Most files start with either J- or K-. I would assume these were short for the composers, i.e. Justin Scharvona or Karen Griffin.

Missing Track Restoration

The PSX version has an extra music track that’s missing from the PC version.

The plan was to change the track ID in the Caveman and Inca tribe maps to reference those of the Forest and Snow tribes which frees up two slots in the table. Then, replace one of the free slots with the missing track, update the respective map header, then encode the missing track to a format readable by the game.

However, I encountered some difficulties during encoding. The Argonaut ADPCM codec can’t accurately represent some parts of the waveform, manifesting as clicking and static noises during playback. This is probably the reason it was excluded originally.

For comparison, see below:

Comparison picture of the Original and Encoded waveforms

For posterity, here’s links to the files:

Type	Link
Original	PACK6.STR[1].flac
Encoded	PACK6.STR[1].ASF