Re: [Tuxracer-devel] too many Particles and libtcl8.x

[Ingo R. <gr...@gm...>]

Jasmin Patry <jf...@cg...> writes:

> To follow up on the particle system bug:
> 
> If you can reliably re-create the problem,

Yep, I can reproduce the problem, since it always happens when I press
J or L.

> could you please apply the attached patch to part_sys.c and send me
> the resulting core file?

There is no core file generated. So I played a bit around with gdb:

,----
| nstuxracer: Maximum number of particles exceeded.
| *** Please help the Tux Racer developers by emailing the core file 
| *** that has just been created (gzip it first, please) to 
| *** <jf...@cg...>. Thanks!
| 
| Breakpoint 1, create_new_particles (loc={x = 0.67505081281655532, 
|       y = -20.186827572125033, z = -50.121188293065998}, vel={x = 0, y = 1, 
|       z = 0}, num=186591) at part_sys.c:66
| 66              assert( 0 );
| (gdb) bt
| #0  create_new_particles (loc={x = 0.67505081281655532, 
|       y = -20.186827572125033, z = -50.121188293065998}, vel={x = 0, y = 1, 
|       z = 0}, num=186591) at part_sys.c:66
|                   ^^^^^^ <-------------------- This looks far to big
| #1  0x80598e5 in generate_particles (plyr=0x806e4bc, 
|     dtime=0.0012768565664670987, pos={x = 0.50005081281655528, 
|       y = -20.186827572125033, z = -50.121188293065998}, 
|     speed=78.311284378030109) at phys_sim.c:754
`----

Looks like plyr->control.turn_fact is the cause for this:

,----
| (gdb) print generate_particles::plyr->control.turn_fact
| $5 = 48711.292061943917
`----

> Please also specify your compiler version (I'm assuming I'll need to use
> the same version to use your core file, or no?  I'm new to distributed
> development. :-).

I'm using gcc 2.95.2, but AFAIK you need the same tuxracer binary as I
used to generate the core file.
 
> By the way, if you want to suppress particle generation altogether,
> simply comment out the call to generate_particles() in phys_sim.c.
 
That didn't help. Tux gets totally out of controll if I press J or L,
looks like the problem is not the particle system, but instead that
there is something wrong with the controls.

-- 
ICQ: 59461927                                    http://pingus.seul.org | 
Ingo Ruhnke <gr...@gm...>             http://home.pages.de/~grumbel/ |
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