/*
=================
CL_SendCmd
=================
*/
void CL_SendCmd (void)
{
sizebuf_t buf;
byte data[128];
int i;
usercmd_t *cmd, *oldcmd;
usercmd_t nullcmd;
int checksumIndex;
// clear buffer
memset (&buf, 0, sizeof(buf));
// build a command even if not connected
// save this command off for prediction
i = cls.netchan.outgoing_sequence & (CMD_BACKUP-1);
cmd = &cl.cmds[i];
cl.cmd_time[i] = cls.realtime; // for netgraph ping calculation
*cmd = CL_CreateCmd ();
cl.cmd = *cmd;
if (cls.state == ca_disconnected || cls.state == ca_connecting)
return;
if (cls.state == ca_connected)
{
if (cls.netchan.message.cursize || curtime - cls.netchan.last_sent > 1000 )
Netchan_Transmit (&cls.netchan, 0, buf.data);
return;
}
// send a userinfo update if needed
if (userinfo_modified)
{
CL_FixUpGender();
userinfo_modified = false;
MSG_WriteByte (&cls.netchan.message, clc_userinfo);
MSG_WriteString (&cls.netchan.message, Cvar_Userinfo() );
}
SZ_Init (&buf, data, sizeof(data));
// Knightmare- removed this, put ESC-only substitute in keys.c
/*if (cmd->buttons && cl.cinematictime > 0 && !cl.attractloop
&& cls.realtime - cl.cinematictime > 1000)
{ // skip the rest of the cinematic
SCR_FinishCinematic ();
}*/
// begin a client move command
MSG_WriteByte (&buf, clc_move);
// save the position for a checksum byte
checksumIndex = buf.cursize;
MSG_WriteByte (&buf, 0);
// let the server know what the last frame we
// got was, so the next message can be delta compressed
if (cl_nodelta->value || !cl.frame.valid || cls.demowaiting)
MSG_WriteLong (&buf, -1); // no compression
else
MSG_WriteLong (&buf, cl.frame.serverframe);
// send this and the previous cmds in the message, so
// if the last packet was dropped, it can be recovered
i = (cls.netchan.outgoing_sequence-2) & (CMD_BACKUP-1);
cmd = &cl.cmds[i];
memset (&nullcmd, 0, sizeof(nullcmd));
MSG_WriteDeltaUsercmd (&buf, &nullcmd, cmd);
oldcmd = cmd;
i = (cls.netchan.outgoing_sequence-1) & (CMD_BACKUP-1);
cmd = &cl.cmds[i];
MSG_WriteDeltaUsercmd (&buf, oldcmd, cmd);
oldcmd = cmd;
i = (cls.netchan.outgoing_sequence) & (CMD_BACKUP-1);
cmd = &cl.cmds[i];
MSG_WriteDeltaUsercmd (&buf, oldcmd, cmd);
// calculate a checksum over the move commands
buf.data[checksumIndex] = COM_BlockSequenceCRCByte(
buf.data + checksumIndex + 1, buf.cursize - checksumIndex - 1,
cls.netchan.outgoing_sequence);
//
// deliver the message
//
Netchan_Transmit (&cls.netchan, buf.cursize, buf.data);
}
void CL_SendCmd(void)
{
sizebuf_t buf;
byte data[128];
int i;
usercmd_t *cmd, *oldcmd;
usercmd_t nullcmd;
int checksumIndex;
memset(&buf, 0, sizeof(buf));
/* save this command off for prediction */
i = cls.netchan.outgoing_sequence & (CMD_BACKUP - 1);
cmd = &cl.cmds[i];
cl.cmd_time[i] = cls.realtime; /* for netgraph ping calculation */
CL_FinalizeCmd();
cl.cmd = *cmd;
if ((cls.state == ca_disconnected) || (cls.state == ca_connecting)) {
return;
}
if (cls.state == ca_connected) {
if (cls.netchan.message.cursize || (curtime - cls.netchan.last_sent > 1000)) {
Netchan_Transmit(&cls.netchan, 0, buf.data);
}
return;
}
/* send a userinfo update if needed */
if (userinfo_modified) {
CL_FixUpGender();
userinfo_modified = false;
MSG_WriteByte(&cls.netchan.message, clc_userinfo);
MSG_WriteString(&cls.netchan.message, Cvar_Userinfo());
}
SZ_Init(&buf, data, sizeof(data));
/* begin a client move command */
MSG_WriteByte(&buf, clc_move);
/* save the position for a checksum byte */
checksumIndex = buf.cursize;
MSG_WriteByte(&buf, 0);
/* let the server know what the last frame we
got was, so the next message can be delta
compressed */
if (cl_nodelta->value || !cl.frame.valid) {
MSG_WriteLong(&buf, -1); /* no compression */
} else {
MSG_WriteLong(&buf, cl.frame.serverframe);
}
/* send this and the previous cmds in the message, so
if the last packet was dropped, it can be recovered */
i = (cls.netchan.outgoing_sequence - 2) & (CMD_BACKUP - 1);
cmd = &cl.cmds[i];
memset(&nullcmd, 0, sizeof(nullcmd));
MSG_WriteDeltaUsercmd(&buf, &nullcmd, cmd);
oldcmd = cmd;
i = (cls.netchan.outgoing_sequence - 1) & (CMD_BACKUP - 1);
cmd = &cl.cmds[i];
MSG_WriteDeltaUsercmd(&buf, oldcmd, cmd);
oldcmd = cmd;
i = (cls.netchan.outgoing_sequence) & (CMD_BACKUP - 1);
cmd = &cl.cmds[i];
MSG_WriteDeltaUsercmd(&buf, oldcmd, cmd);
/* calculate a checksum over the move commands */
buf.data[checksumIndex] = COM_BlockSequenceCRCByte(buf.data + checksumIndex + 1, buf.cursize - checksumIndex - 1,
cls.netchan.outgoing_sequence);
/* deliver the message */
Netchan_Transmit(&cls.netchan, buf.cursize, buf.data);
/* Reinit the current cmd buffer */
cmd = &cl.cmds[cls.netchan.outgoing_sequence & (CMD_BACKUP - 1)];
memset(cmd, 0, sizeof(*cmd));
}
