notes.txt

DO ALL TESTS WITH HELM ONLY


EF BE AD DE <len> 00 00 00 01 00 00 00 00 00 00 00 <packet len1> <len2> <len3> <len4>

<Some sort of 4byte type>


next 4 bytes as some sort of packet type? shortest packets seen are all 00 00 00 00

observed:
02 f3 03 00	94 bytes usually
02 f3 03 03
02 ed 03 00	232 len

01 ec 03 00 96 byte packet, every 30 packets or so
		length differs between stations



todo:
work on the 01ec0300 packet, they seem to be generic updates but tailored for the station thats receiving them. There doesnt seem to be any form of "station id" in them either

work out what the contents of "python theory.py" mean
	> energy is there but fuck knows what the rest is


Getting hit:

seems to NOT be f93d8080
Seems to be c4 d2 3f b8 <seq1> <seq2>

offset 0xf from that is a flipping bit


-0-------observed types-----

f9 3d 80 80 = seems to be keep alive and energy/??? updates, also some larger packets
c4 d2 3f b8 = sent twice with a single bit flipped when ship is hit. Not affected by shields
3c 9f 7e 07 = 
26 12 82 f5  = seen once during messing with shields, empty packet after this
fe c8 54 f7 = seen during messing with shields in 72 and 76 byte frame
5f c3 72 d6  = messages from stations



------- TYPE NOTES

--- fe c8 54 f7

seen in 72 and 76 byte frames whilst messing with shields and getting whomped

04:00:00:00:00:00:00:00
08:00:00:00:00:00:c8:42
08:00:00:00:00:00:48:42


----- f9 3d 80 80
some sort of screen or station update

49 3d 80 80 num 242 num 0 [0 132 26 0]

bracket section appears to be a bitfield, next values are what to set.


BIT FIELDS
dont seem to be the same between types
01,ec,03,00 -> seems to be HELM data

          v----------------- impulse level 9 FLOAT
          vv---------------- rotation rate 0=left,1=righ FLOAT
          vv
          vv   v-------------warp rate BYTE
          vv   vv------------energy FLOAT
          vv   vv
          vv   vv v-----------shield on/off - possibly SHORT
          vv   vv v         v--- rotation of ship (float)
00000000 00000011 00010100 01000000
00000000 00000001 00000001 00001000
                     ^ ^       ^ ^- rear shield
                     ^ ^       ^  front shielf
                     ^ ^----- Ship Y
                     ^------- Ship X
15 : ("energy", 'f'),
21: ("coordY", 'f'), 
19: ("coordX", 'f'), 
16: ("shield", 'h'), 
14: ("warp rate", 'b'), 
10:("rotation rate", 'f'), 
9: ("impulse rate", 'f'),  
23: ("unknown2", 'f'), 
25: ("unk3", 'b'), 
24: ("rotation", 'f'), 
28: ("frontshield",'f'), 
30: ("rearshield", 'f'), 
8: ("weaponlock", "i"), 
13:("autobeams",'b')}