-void EntityFrameCSQC_WriteState (sizebuf_t *msg, int number, qboolean doupdate, qboolean *sectionstarted)
-{
- int version;
- prvm_eval_t *val, *val2;
- version = 0;
- if (doupdate)
- {
- if (msg->cursize + !*sectionstarted + 2 + 1 + 2 > msg->maxsize)
- return;
- val2 = PRVM_EDICTFIELDVALUE((&prog->edicts[number]), prog->fieldoffsets.Version);
- version = (int)val2->_float;
- // LordHavoc: do some validity checks on self.Version
- // if Version reaches 8388608, it has already exhausted half of the
- // reliable integer space in a 32bit float, and should be reset to 1
- // FIXME: we should set all client versions of this entity to -1
- // so that it will not be skipped accidentally in some cases after
- // the reset
- if (version < 0)
- val2->_float = 0;
- if (version >= 8388608)
- {
- int i;
- val2->_float = 1;
- // since we just reset the Version field to 1, it may accidentally
- // end up being equal to an existing client version now or in the
- // future, so to fix this situation we have to loop over all
- // clients and change their versions for this entity to be -1
- // which never matches, thus causing them to receive the update
- // soon, as they should
- for (i = 0;i < svs.maxclients;i++)
- if (sv2csqcents_version[i] && sv2csqcents_version[i][number])
- sv2csqcents_version[i][number] = -1;
- }
- }
- // if the version already matches, we don't need to do anything as the
- // latest version has already been sent.
- if (sv2csqcents_version[csqc_clientnum][number] == version)
- return;
- if (version)
- {
- // if there's no SendEntity function, treat it as a remove
- val = PRVM_EDICTFIELDVALUE((&prog->edicts[number]), prog->fieldoffsets.SendEntity);
- if (val->function)
- {
- // there is a function to call, save the cursize value incase we
- // have to do a rollback due to overflow
- int oldcursize = msg->cursize;
- if(!*sectionstarted)
- MSG_WriteByte(msg, svc_csqcentities);
- MSG_WriteShort(msg, number);
- ((int *)prog->globals.generic)[OFS_PARM0] = csqc_clientnum+1;
- prog->globals.server->self = number;
- PRVM_ExecuteProgram(val->function, "Null SendEntity\n");
- if(prog->globals.generic[OFS_RETURN])
- {
- if (msg->cursize + 2 > msg->maxsize)
- {
- // if the packet no longer has enough room to write the
- // final index code that ends the message, rollback to the
- // state before we tried to write anything and then return
- msg->cursize = oldcursize;
- msg->overflowed = false;
- return;
- }
- // an update has been successfully written, update the version
- sv2csqcents_version[csqc_clientnum][number] = version;
- // and take note that we have begun the svc_csqcentities
- // section of the packet
- *sectionstarted = 1;
- return;
- }
- else
- {
- // rollback the buffer to its state before the writes
- msg->cursize = oldcursize;
- // if the function returned FALSE, simply write a remove
- // this is done by falling through to the remove code below
- version = 0;
- }
- }
- }
- // write a remove message if needed
- // if already removed, do nothing
- if (!sv2csqcents_version[csqc_clientnum][number])
- return;
- // if there isn't enough room to write the remove message, just return, as
- // it will be handled in a later packet
- if (msg->cursize + !*sectionstarted + 2 + 2 > msg->maxsize)
- return;
- // first write the message identifier if needed
- if(!*sectionstarted)
- {
- *sectionstarted = 1;
- MSG_WriteByte(msg, svc_csqcentities);
- }
- // write the remove message
- MSG_WriteShort(msg, (unsigned short)number | 0x8000);
- sv2csqcents_version[csqc_clientnum][number] = 0;
-}
-