Grabbed by the Ghoulies animation format

gbtg_anim.bt

//--------------------------------------
//--- 010 Editor v5.0 Binary Template
//
// File:     gbtg_anim.bt
// Author:   wrs/x1nixmzeng
// Revision: 0.1
// Purpose:  aid_anim_* parsing from
//           "grabbed by the ghoulies"
//--------------------------------------

char Magic[4]; Assert(Magic=="MINA"); //'ANIM'
uint un<format=hex, hidden=true>; Assert(un==993911001);

float Duration; Assert(Duration>0.0f);

int OffsetData;     //?
int zero;           Assert(zero==0);

// min 1 bone required for animation
int BoneCount;      Assert(BoneCount>0);

// still differs when file contents are identical
// will include time in its calculation !!
short s1__ignore; // not part of filesize - frames?
short s2;           Assert(s2==0||s2==s1__ignore);

int flags<hidden=true>;

Assert((flags&0xff0000ff)==0x26000080);
Assert(flags==647890816  // 26 9E 07 80
    || flags==648415104  // 26 A6 07 80 human?
    || flags==649465216  // 26 b6 0D 80
    || flags==648678016  // 26 AA 0A 80
 );

int block_a;        Assert(block_a < FileSize());
int block_a_size;   // ?
int block_b;        Assert(block_b < FileSize());

Printf("Duration %.2fsec\n", Duration);
Printf("Bones %u\n", BoneCount);
Printf("Block1 %s\n", (block_a!=0)?"y":"n");
Printf("Block2 %s\n", (block_b!=0)?"y":"n");

FSeek(0x40);

ushort h1, h2;
ushort h3, h4;
float t<hidden=true>; Assert(t==1.0f);

// data is compressed or packed in some obsecure way
ubyte data[FileSize()-FTell()];

// data examples with 2 bones and very short anims
// 03 FC FC 00 7E FF 21 02 D8 FC B3 00 B3 00 B3 00
// 03 FC FC 00 00 00 2C 00 A2 FD B3 00 8C 00 B3 00
// 03 6C FC 00 51 FF C3 FE B3 00 B3 00 B3 00 00 00 
// 03 6C FC 00 29 01 A5 FE B3 00 B3 00 B3 00 00 00

//Assert(FEof());