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Port a few of Tonik's networking improvements, under different names.

Browse source 
cl_maxnetfps (his cl_c2spps), controls number of frames worth of command packets sent per second. So you can now crank your cl_maxfps, and tweak networking independently.

Also, cl_spamimpulse (his cl_c2sImpulseBackup), controls number of duplicate packets spammed to attempt to make impulses reliably reach the server. 3 is default, same as id. Experiment with lowering it at your risk (higher does nothing).
This commit is contained in:
Ragnvald Maartmann-Moe IV 2001-12-03 09:01:17 +00:00
parent 29a8d84806
commit 5a356259f5
1 changed files with 50 additions and 5 deletions
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55
qw/source/cl_input.c
View file

@ -57,6 +57,8 @@ static const char rcsid[] =
#include "view.h"
cvar_t *cl_nodelta;
cvar_t *cl_maxnetfps;
cvar_t *cl_spamimpulse;
/*
KEY BUTTONS
@ -75,7 +77,6 @@ cvar_t *cl_nodelta;
state bit 2 is edge triggered on the down to up transition
*/
kbutton_t in_left, in_right, in_forward, in_back;
kbutton_t in_lookup, in_lookdown, in_moveleft, in_moveright;
kbutton_t in_use, in_jump, in_attack;
@ -608,10 +609,13 @@ CL_FinishMove (usercmd_t *cmd)
void
CL_SendCmd (void)
{
byte data[128];
int checksumIndex, lost, seq_hash, i;
sizebuf_t buf;
usercmd_t *cmd, *oldcmd;
byte data[128];
static float pps_balance = 0.0;
static int dropcount = 0;
int checksumIndex, lost, seq_hash, i;
qboolean dontdrop; // FIXME: needed without cl_c2sImpulseBackup?
sizebuf_t buf;
usercmd_t *cmd, *oldcmd;
if (cls.demoplayback)
return; // sendcmds come from the demo
@ -655,18 +659,26 @@ CL_SendCmd (void)
lost = CL_CalcNet ();
MSG_WriteByte (&buf, (byte) lost);
dontdrop = false;
i = (cls.netchan.outgoing_sequence - 2) & UPDATE_MASK;
cmd = &cl.frames[i].cmd;
if (cl_spamimpulse->int_val >= 2)
dontdrop = dontdrop || cmd->impulse;
MSG_WriteDeltaUsercmd (&buf, &nullcmd, cmd);
oldcmd = cmd;
i = (cls.netchan.outgoing_sequence - 1) & UPDATE_MASK;
cmd = &cl.frames[i].cmd;
if (cl_spamimpulse->int_val >= 3)
dontdrop = dontdrop || cmd->impulse;
MSG_WriteDeltaUsercmd (&buf, oldcmd, cmd);
oldcmd = cmd;
i = (cls.netchan.outgoing_sequence) & UPDATE_MASK;
cmd = &cl.frames[i].cmd;
if (cl_spamimpulse->int_val >= 1)
dontdrop = dontdrop || cmd->impulse;
MSG_WriteDeltaUsercmd (&buf, oldcmd, cmd);
// calculate a checksum over the move commands
@ -691,6 +703,32 @@ CL_SendCmd (void)
if (cls.demorecording)
CL_WriteDemoCmd (cmd);
if (cl_maxnetfps->int_val) {
pps_balance += host_frametime;
// never drop more than 2 messages in a row -- that'll cause PL
// and don't drop if one of the last two movemessages have an impulse
if (pps_balance > 0.0 || dropcount >= 2 || dontdrop) {
float pps;
pps = cl_maxnetfps->int_val;
if (pps < 10) pps = 10;
if (pps > 72) pps = 72;
pps_balance -= 1.0 / pps;
pps_balance = bound (-0.1, pps_balance, 0.1);
dropcount = 0;
} else {
// don't count this message when calculating PL
cl.frames[i].receivedtime = -3;
// drop this message
cls.netchan.outgoing_sequence++;
dropcount++;
return;
}
} else {
pps_balance = 0;
dropcount = 0;
}
// deliver the message
Netchan_Transmit (&cls.netchan, buf.cursize, buf.data);
}
@ -777,4 +815,11 @@ CL_Input_Init_Cvars (void)
cl_nodelta = Cvar_Get ("cl_nodelta", "0", CVAR_NONE, NULL,
"Disable player delta compression. Set to 1 if you "
"have a poor ISP and get many U_REMOVE warnings.");
cl_maxnetfps = Cvar_Get ("cl_maxnetfps", "0", CVAR_ARCHIVE, NULL,
"Controls number of command packets sent per "
"second. Default 0 is unlimited.");
cl_spamimpulse = Cvar_Get ("cl_spamimpulse", "3", CVAR_NONE, NULL,
"Controls number of duplicate packets sent if "
"an impulse is being sent. Default (id "
"behavior) is 3.");
}