VPhysicsInitNormal is not guaranteed to return non-null. It can fail for a variety of reasons. Take a look at CBaseEntity::VPhysicsInitNormal in baseentity_shared.cpp to see.
-----Original Message----- From: hlcoders-boun...@list.valvesoftware.com [mailto:hlcoders-boun...@list.valvesoftware.com] On Behalf Of Nick Sent: Monday, October 11, 2010 6:00 PM To: Discussion of Half-Life Programming Subject: [hlcoders] void CTripmineGrenade::Spawn( void ) linux crash orangebox stock code....... gcc (GCC) 4.2.4 Linux dual-core 2.6.28-19-generic #65-Ubuntu SMP Thu Sep 16 14:14:28 UTC 2010 i686 GNU/Linux n...@dual-core:~/srcds/orangebox/orangebox$ ./srcds_i486 --version Warning: falling back to auto detection of vproject directory. Unable to find gameinfo.txt. Solutions: 1. Read http://www.valve-erc.com/srcsdk/faq.html#NoGameDir ldd server_i486.so linux-gate.so.1 => (0xb7784000) libm.so.6 => /lib/tls/i686/cmov/libm.so.6 (0xb6457000) libdl.so.2 => /lib/tls/i686/cmov/libdl.so.2 (0xb6453000) tier0_i486.so => not found vstdlib_i486.so => not found steam_api_i486.so => not found libc.so.6 => /lib/tls/i686/cmov/libc.so.6 (0xb62ef000) /lib/ld-linux.so.2 (0xb7785000) 69 void CTripmineGrenade::Spawn( void ) 70 { 71 Precache( ); 72 // motor (gdb) l 73 SetMoveType( MOVETYPE_FLY ); 74 SetSolid( SOLID_BBOX ); 75 SetModel( "models/Weapons/w_slam.mdl" ); 76 77 IPhysicsObject *pObject = VPhysicsInitNormal( SOLID_BBOX, GetSolidFlags() | FSOLID_TRIGGER, true ); 78 pObject->EnableMotion( false ); 79 SetCollisionGroup( COLLISION_GROUP_WEAPON ); 80 81 SetCycle( 0.0f ); 82 m_nBody = 3; (gdb) bt #0 0xb520b112 in CTripmineGrenade::Spawn (this=0xbdf5bf0) at ../game/server/hl2mp/grenade_tripmine.cpp:78 #1 0xb4ef5d39 in DispatchSpawn (pEntity=0xbdf5bf0) at ../game/server/util.cpp:1880 #2 0xb4d0d348 in CBaseEntity::Create (szName=0xb53ba629 "npc_tripmine", vecorig...@0xbfbedfac, vecangl...@0xbfbedf54, pOwner=0x0) at ../game/server/baseentity.cpp:2976 #3 0xb5064b4e in CWeapon_SLAM::TripmineAttach (this=0xbdf28d8) at ../game/server/../shared/hl2mp/weapon_slam.cpp:381 #4 0xb5064d70 in CWeapon_SLAM::WeaponIdle (this=0xbdf28d8) at ../game/server/../shared/hl2mp/weapon_slam.cpp:875 #5 0xb5063c16 in CWeapon_SLAM::ItemPostFrame (this=0xbdf28d8) at ../game/server/../shared/hl2mp/weapon_slam.cpp:789 #6 0xb4fa108d in CBasePlayer::ItemPostFrame (this=0xbdd0810) at ../game/server/../shared/baseplayer_shared.cpp:229 #7 0xb50af8f1 in CHL2_Player::ItemPostFrame (this=0xbdd0810) at ../game/server/hl2/hl2_player.cpp:3588 #8 0xb4e5b3a9 in CBasePlayer::PostThink (this=0xbdd0810) at ../game/server/player.cpp:4436 #9 0xb50b4643 in CHL2_Player::PostThink (this=0xbdd0810) at ../game/server/hl2/hl2_player.cpp:891 #10 0xb5205732 in CHL2MP_Player::PostThink (this=0xbdd0810) at ../game/server/hl2mp/hl2mp_player.cpp:998 #11 0xb4e68a5e in CPlayerMove::RunPostThink (this=0xb56a56b8, player=0xbdd0810) at ../game/server/player_command.cpp:302 #12 0xb4e69a6c in CPlayerMove::RunCommand (this=0xb56a56b8, player=0xbdd0810, ucmd=0xbdeddac, moveHelper=0xb566cae8) at ../game/server/player_command.cpp:424 (gdb) print pObject $3 = (IPhysicsObject *) 0x0 (gdb) print this $4 = (CTripmineGrenade * const) 0xbdf5bf0 (gdb) how on earth is pObject null when it was just created? 77 IPhysicsObject *pObject = VPhysicsInitNormal( SOLID_BBOX, GetSolidFlags() | FSOLID_TRIGGER, true ); 78 pObject->EnableMotion( false ); src\game\server\hl2mp\grenade_tripmine.cpp I am really really lost here. _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders _______________________________________________ To unsubscribe, edit your list preferences, or view the list archives, please visit: http://list.valvesoftware.com/mailman/listinfo/hlcoders
