LFS Forum - Insim bug or me bug?

#1 - Becky Rose

Insim bug or me bug?

Sun, 10 Jun 2007 22:29

I'm having trouble determining the laps done value from the IS_RES (results) packet. I'm reading of a short value (2 byte unsigned) at byte position 78 (to 79) and it is returning 1024 on 1-5 lap races consistently.

Am I reading the wrong value, the wrong datatype, or is this a bug in insim 4?

Thank you.

#2 - the_angry_angel

Sun, 10 Jun 2007 22:39

Just done quick 1 lap test on ogHosts #1 with a project I'm working on (I was yet to get to IS_RES), but I'm definately receiving the correct number of laps done (yes I've not finished teaching it about all the packets yet either

- laps done is in that mess somewhere);

#3 - Becky Rose

Sun, 10 Jun 2007 23:31

Cheers angry, i'm going to return to this one with a fresh head - hopefully i'll spot it straight away in the light of day

#4 - Kada_CZ

Mon, 11 Jun 2007 01:01

In patch X, the LapsDone field is at position 76, you can check it by compiling and running the following C code:

#include <stddef.h>
#include <stdio.h>
typedef unsigned char byte;
typedef unsigned short word;


typedef struct // RESult (qualify or confirmed finish)
{
    byte    Size;       // 84
    byte    Type;       // ISP_RES
    byte    ReqI;       // 0 unless this is a reply to a TINY_RES request
    byte    PLID;       // player's unique id (0 = player left before result was sent)

    char    UName[24];  // username
    char    PName[24];  // nickname
    char    Plate[8];   // number plate - NO ZERO AT END!
    char    CName[4];   // skin prefix

    unsigned    TTime;  // race time (ms)
    unsigned    BTime;  // best lap (ms)

    byte    SpA;
    byte    NumStops;   // number of pit stops
    byte    Confirm;    // confirmation flags : disqualified etc - see below
    byte    SpB;

    word    LapsDone;   // laps completed
    word    Flags;      // player flags : help settings etc - see below

    byte    ResultNum;  // finish or qualify pos (0 = win / 255 = not added to table)
    byte    NumRes;     // total number of results (qualify doesn't always add a new one)
    word    PSeconds;   // penalty time in seconds (already included in race time)
} __attribute__ ((packed)) IS_RES;

int main() {
    printf ("s = %d\n",offsetof (IS_RES, LapsDone));
    return 1;
}

EDIT: I changed the typedefs according to Scawen's post, to prevent confusion for readers. I use correct typedefs in my other programs, though

.

#5 - Scawen

Mon, 11 Jun 2007 17:50

Kada_CZ - I noticed your code says :

typedef char byte;
typedef short word;

But that's slightly wrong - it should be :

typedef unsigned char byte;
typedef unsigned short word;

That may stop something going wrong, somewhere...

#6 - Becky Rose

Mon, 11 Jun 2007 19:06

I found the problem in my code, it was simply a case of tired eyes not being able to count the offset correctly. Fresh eyes fixed it

Thanks guys.

BTW Scawen: Could I please ask for a new insim command *ducks* ? Whilst programming i've found I have a need to know the currently loaded layout. I could keep track when I load it by writing the name to a file, but i'm concerned about loosing sync if the software has any downtime [and fiddling admins

] and I like to build things as robust as I can.

Thank you for your consideration.

#7 - Scawen

Mon, 18 Jun 2007 14:11

Quote from Becky Rose :BTW Scawen: Could I please ask for a new insim command *ducks* ? Whilst programming i've found I have a need to know the currently loaded layout. I could keep track when I load it by writing the name to a file, but i'm concerned about loosing sync if the software has any downtime [and fiddling admins

] and I like to build things as robust as I can.

Thank you for your consideration.

A crash bug preventable on host side forces me to release an X2 dedicated host very soon. So I'm considering this autocross request.

This is what I've come up with (three packets) :

Request : TINY_AXI - get autocross info

Info : TINY_AXC - autocross cleared

New packet : IS_AXI - autocross info - sent on loading layout or TINY_AXI request

byte Size; // 40
byte Type; // ISP_AXI
byte ReqI; // As received in TINY_AXI
byte Zero;

byte Flags; // autocross start / split1 / split2 / split3 / finish line
byte Spare;
word NumObjects;

char LayoutName[32];

LayoutName would be blank if the layout was loaded by an admin, from the admin's own computer, but it would be valid if the layout was loaded from the host's own layout folder. NumObjects would always be valid.

Is there any other info that would be useful? Maybe those flags are already useless - I was just trying to think of other relevant autocross info.

#8 - Becky Rose

Mon, 18 Jun 2007 16:31

If I had friends, you'd be my best one

.

#9 - Dygear

Thu, 21 Jun 2007 10:37

Quote from Becky Rose :If I had friends, you'd be my best one

.

You have friends. People on the internet can be your friends. I have lots of people on the internet I'm friends with. Some of them are much cooler people then the guys / girls I do hang out with.