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loldevs / leaguespec

community crafted knowledge base around Riot Games observer system
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Figure out the meaning of marker #1 in player and turret segments #17

Open Zero3 opened 10 years ago

Zero3 commented 10 years ago

The player segment wiki page states the following about player segment headers:

!! !! C3 !! 11 00 [00 00 00]

Similarly, the turret segment wiki page states:

!! !! 4A 9C                  // Marker #1 & #2
++ ++ ++ 40                  // Base entity ID, only for the first turret
++ ++ ++ 40                  // Entity ID
40

Perhaps 0x93 indicates the start of a new type of segments (player / turrets) and 0xB3 indicates another segment of same type. If true, this could be useful for knowing which kind of segment we are parsing (... how do we actually know this at the moment? Do we just check byte 3 which is known to be 0xC3 / 0x4A depending on segment type?)

themasch commented 10 years ago

I'm pretty sure that the 0x93 = new type, 0xB3 = same type thing is wrong because i've seen replays where the first player header starts at 0x10 with [ 0xb3 0x00 0xc3 0x4c 0x00 ]

I'll try to fix my parser and see if i get more information about this.

[update] Most keyframes i've seen in the last games where of this 0xb3 0x00/0x01 0xc3 0x4c type. The second byte seems to be changing most frequently.

i've seen some keyframes where some of the players "suddenly" had 9300c34b0-keyframes and these had an additional space between the end of the previous player segment and the header that contains 930001df01.

Divi commented 10 years ago

0x93 and 0xB3 are not constant. Since the patch 4.11 I found a few keyframes with other hex (see #15). I don't know why. Same for the next 0x00 or 0x01.

Here the regex I use to found the header : /C3(?:4B|4C)00(?:000000)?[A-Z0-9]{6}40[0-9]{2}00000040/.

jaagupkymmel commented 10 years ago

Take a look at https://gist.github.com/jaagupkymmel/8939b876dd164b71ad9f. It seems to make sense so far.

themasch commented 10 years ago

@jaagupkymmel at first glace this looks pretty good. I hope I'll find some time to check this. could be huge if thats correct an valid for all (more) headers. finally some structure!