How did this not blow up all day long for years?!
Found by UBSAN:
/home/teeworlds/src/master/src/game/server/entities/dragger.cpp:32:29: runtime error: member call on address 0x0000013319b8 which does not point to an object of type 'CCharacter'
0x0000013319b8: note: object has invalid vptr
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
^~~~~~~~~~~~~~~~~~~~~~~
invalid vptr
#0 0x5501de in CDragger::Move() /home/teeworlds/src/master/src/game/server/entities/dragger.cpp:32:29
#1 0x5522c2 in CDragger::Tick() /home/teeworlds/src/master/src/game/server/entities/dragger.cpp:153:3
#2 0x5eb11e in CGameWorld::Tick() /home/teeworlds/src/master/src/game/server/gameworld.cpp:261:11
#3 0x58d660 in CGameContext::OnTick() /home/teeworlds/src/master/src/game/server/gamecontext.cpp:751:10
#4 0x4afefe in CServer::Run() /home/teeworlds/src/master/src/engine/server/server.cpp:2558:19
#5 0x4c26fd in main /home/teeworlds/src/master/src/engine/server/server.cpp:3551:21
#6 0x7f2c8cc9309a in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2409a)
#7 0x451509 in _start (/home/teeworlds/servers/DDNet-Server-ubsan+0x451509)
Purely automatic change. In case of conflict with this change, apply the
other change and rerun the formatting to restore it:
$ python scripts/fix_style.py
2478: Use (u)int64 from system.h instead of (u)int64_t from cstdint r=heinrich5991 a=def-
src/game/client/prediction/gameworld.h:62:90: error: ‘int64_t’ has not been declared
62 | void CreateExplosion(vec2 Pos, int Owner, int Weapon, bool NoDamage, int ActivatedTeam, int64_t Mask);
| ^~~~~~~
2480: Send zoom status for dummy too r=heinrich5991 a=def-
Co-authored-by: def <dennis@felsin9.de>
src/game/client/prediction/gameworld.h:62:90: error: ‘int64_t’ has not been declared
62 | void CreateExplosion(vec2 Pos, int Owner, int Weapon, bool NoDamage, int ActivatedTeam, int64_t Mask);
| ^~~~~~~
2401: Client tells server its zoom level (fixes#2087) r=heinrich5991 a=def-
and server adapts the visible distance to it
Co-authored-by: def <dennis@felsin9.de>
2202: Send DDNet version early in the connection process r=Learath2 a=heinrich5991
This gets rid of the problem that we don't know whether we should send
full snapshots to clients because they haven't told us about them being
DDNet yet.
Co-authored-by: heinrich5991 <heinrich5991@gmail.com>
2212: Use a consistent PRNG on all platforms r=Learath2 a=heinrich5991
I just used glibc's because that is what we use on all the servers. Based on https://www.mscs.dal.ca/~selinger/random/.
Behavior change: The PRNG is actually seeded now.
Co-authored-by: heinrich5991 <heinrich5991@gmail.com>
As discussed on Discord today, can be enabled inside of teams on the fly
during each run on any server. Finishes don't count. I haven't tested
save/load yet, would do that live on the server if this can be merged.
This gets rid of the problem that we don't know whether we should send
full snapshots to clients because they haven't told us about them being
DDNet yet.
Edgar
