ref: bcd7bbc429073a5683d89abcec6613bc1d6f6f1d
dir: /cl_main.c/
#include "quakedef.h"
// we need to declare some mouse variables here, because the menu system
// references them even when on a unix system.
// these two are not intended to be set directly
cvar_t cl_name = {"_cl_name", "player", true};
cvar_t cl_color = {"_cl_color", "0", true};
cvar_t cl_shownet = {"cl_shownet","0"}; // can be 0, 1, or 2
static cvar_t cl_nolerp = {"cl_nolerp","0"};
cvar_t lookspring = {"lookspring","0", true};
cvar_t lookstrafe = {"lookstrafe","0", true};
cvar_t sensitivity = {"sensitivity","3", true};
cvar_t m_pitch = {"m_pitch","0.022", true};
cvar_t m_yaw = {"m_yaw","0.022", true};
cvar_t m_forward = {"m_forward","1", true};
cvar_t m_side = {"m_side","0.8", true};
static efrag_t *cl_efrags;
client_static_t cls;
client_state_t cl;
entity_t **cl_visedicts;
entity_t *cl_entities;
entity_t *cl_static_entities;
lightstyle_t cl_lightstyle[Nlights];
dlight_t cl_dlights[MAX_DLIGHTS];
int cl_numvisedicts;
static void
CL_ApplyInterpolation(entity_t *e, float frac)
{
float d, f;
vec3_t delta;
int i;
if(e->forcelink){
// the entity was not updated in the last message
// so move to the final spot
VectorCopy(e->msg_origins[0], e->origin);
VectorCopy(e->msg_angles[0], e->angles);
}else{
f = frac;
for(i = 0; i < 3; i++){
delta[i] = e->msg_origins[0][i] - e->msg_origins[1][i];
if(delta[i] > 100 || delta[i] < -100)
f = 1;
}
for(i = 0; i < 3; i++){
e->origin[i] = e->msg_origins[1][i] + f*delta[i];
d = e->msg_angles[0][i] - e->msg_angles[1][i];
if(d > 180.0)
d -= 360.0;
else if(d < -180.0)
d += 360.0;
e->angles[i] = e->msg_angles[1][i] + f*d;
}
}
}
/*
=====================
CL_ClearState
=====================
*/
void CL_ClearState (void)
{
int i;
if (!sv.active)
Host_ClearMemory ();
memset(&cl, 0, sizeof cl);
if(cls.state == ca_connected)
stopallsfx();
SZ_Clear (&cls.message);
CL_ResetTEnts();
memset(cl_static_entities, 0, MAX_STATIC_ENTITIES * sizeof(*cl_static_entities));
memset(cl_entities, 0, MAX_EDICTS*sizeof(*cl_entities));
memset(cl_lightstyle, 0, sizeof cl_lightstyle);
memset(cl_dlights, 0, sizeof cl_dlights);
memset(cl_beams, 0, sizeof cl_beams);
cl_numvisedicts = 0;
// allocate the efrags and chain together into a free list
cl.free_efrags = cl_efrags;
for (i=0 ; i<MAX_EFRAGS-1 ; i++)
cl.free_efrags[i].entnext = &cl.free_efrags[i+1];
cl.free_efrags[i].entnext = nil;
}
/*
=====================
CL_Disconnect
Sends a disconnect message to the server
This is also called on Host_Error, so it shouldn't cause any errors
=====================
*/
void CL_Disconnect (void)
{
stopallsfx();
// bring the console down and fade the colors back to normal
SCR_BringDownConsole ();
// if running a local server, shut it down
if(cls.demoplayback)
abortdemo();
else if (cls.state == ca_connected){
if (cls.demorecording)
stopdemo();
Con_DPrintf("CL_Disconnect: sending clc_disconnect...\n");
SZ_Clear (&cls.message);
MSG_WriteByte (&cls.message, clc_disconnect);
NET_SendUnreliableMessage (cls.netcon, &cls.message);
SZ_Clear (&cls.message);
NET_Close (cls.netcon);
cls.state = ca_disconnected;
if (sv.active)
Host_ShutdownServer(false);
}
cls.demoplayback = cls.timedemo = false;
cls.signon = 0;
}
void CL_Disconnect_f (void)
{
CL_Disconnect ();
if (sv.active)
Host_ShutdownServer (false);
}
/*
=====================
CL_EstablishConnection
Host should be either "local" or a net address to be passed on
=====================
*/
void CL_EstablishConnection (char *host)
{
if (cls.state == ca_dedicated)
return;
if (cls.demoplayback)
return;
CL_Disconnect ();
cls.netcon = NET_Connect (host);
if (!cls.netcon)
Host_Error ("CL_Connect: connect failed\n");
Con_DPrintf("CL_EstablishConnection: connected to %s\n", host);
cls.demonum = -1; // not in the demo loop now
cls.state = ca_connected;
cls.signon = 0; // need all the signon messages before playing
}
/*
=====================
CL_SignonReply
An svc_signonnum has been received, perform a client side setup
=====================
*/
void CL_SignonReply (void)
{
char str[8192];
Con_DPrintf("CL_SignonReply: got %d\n", cls.signon);
switch (cls.signon)
{
case 1:
MSG_WriteByte (&cls.message, clc_stringcmd);
MSG_WriteString (&cls.message, "prespawn");
break;
case 2:
MSG_WriteByte (&cls.message, clc_stringcmd);
MSG_WriteString (&cls.message, va("name \"%s\"\n", cl_name.string));
MSG_WriteByte (&cls.message, clc_stringcmd);
MSG_WriteString (&cls.message, va("color %d %d\n", ((int)cl_color.value)>>4, ((int)cl_color.value)&15));
MSG_WriteByte (&cls.message, clc_stringcmd);
sprint (str, "spawn %s", cls.spawnparms);
MSG_WriteString (&cls.message, str);
break;
case 3:
MSG_WriteByte (&cls.message, clc_stringcmd);
MSG_WriteString (&cls.message, "begin");
break;
case 4:
SCR_EndLoadingPlaque (); // allow normal screen updates
break;
}
}
/*
=====================
CL_NextDemo
Called to play the next demo in the demo loop
=====================
*/
bool
CL_NextDemo (void)
{
char str[1024];
if(cls.demonum < 0)
return false; // don't play demos
if(!cls.demos[cls.demonum][0] || cls.demonum == MAX_DEMOS){
cls.demonum = 0;
if(!cls.demos[cls.demonum][0]){
Con_Printf("No demos listed with startdemos\n");
cls.demonum = -1;
return false;
}
}
SCR_BeginLoadingPlaque();
sprint(str, "playdemo %s\n", cls.demos[cls.demonum]);
Cbuf_InsertText(str);
cls.demonum++;
return true;
}
/*
==============
CL_PrintEntities_f
==============
*/
static void CL_PrintEntities_f (void)
{
entity_t *ent;
int i;
for (i=0,ent=cl_entities ; i<cl.num_entities ; i++,ent++)
{
if (!ent->model)
continue;
Con_Printf ("%3d:%s:%2d (%5.1f,%5.1f,%5.1f) [%5.1f %5.1f %5.1f]\n",
i,ent->model->name,ent->frame,
ent->origin[0], ent->origin[1], ent->origin[2],
ent->angles[0], ent->angles[1], ent->angles[2]
);
}
}
/*
===============
CL_AllocDlight
===============
*/
dlight_t *CL_AllocDlight (int key)
{
int i;
dlight_t *dl;
// first look for an exact key match
if (key)
{
dl = cl_dlights;
for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
{
if (dl->key == key)
{
memset(dl, 0, sizeof *dl);
dl->key = key;
return dl;
}
}
}
// then look for anything else
dl = cl_dlights;
for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
{
if (dl->die < cl.time)
{
memset(dl, 0, sizeof *dl);
dl->key = key;
return dl;
}
}
dl = &cl_dlights[0];
memset(dl, 0, sizeof *dl);
dl->key = key;
return dl;
}
/*
===============
CL_DecayLights
===============
*/
void CL_DecayLights (void)
{
int i;
dlight_t *dl;
float time;
time = cl.time - cl.oldtime;
dl = cl_dlights;
for (i=0 ; i<MAX_DLIGHTS ; i++, dl++)
{
if (dl->die < cl.time || !dl->radius)
continue;
dl->radius -= time*dl->decay;
if (dl->radius < 0)
dl->radius = 0;
}
}
/*
===============
CL_LerpPoint
Determines the fraction between the last two messages that the objects
should be put at.
===============
*/
static float CL_LerpPoint (void)
{
double f, frac;
f = cl.mtime[0] - cl.mtime[1];
if (!f || cl_nolerp.value || cls.timedemo || sv.active)
{
cl.time = cl.mtime[0];
return 1;
}
if (f > 0.1)
{ // dropped packet, or start of demo
cl.mtime[1] = cl.mtime[0] - 0.1;
f = 0.1;
}
frac = (cl.time - cl.mtime[1]) / f;
if (frac < 0)
{
if (frac < -0.01)
cl.time = cl.mtime[1];
frac = 0;
}
else if (frac > 1)
{
if (frac > 1.01)
cl.time = cl.mtime[0];
frac = 1;
}
return frac;
}
/*
===============
CL_RelinkEntities
===============
*/
static void CL_RelinkEntities (void)
{
entity_t *ent;
int i, j;
float frac, d;
float bobjrotate;
vec3_t oldorg;
dlight_t *dl;
// determine partial update time
frac = CL_LerpPoint();
cl_numvisedicts = 0;
// interpolate player info
for(i = 0; i < 3; i++)
cl.velocity[i] = cl.mvelocity[1][i] + frac * (cl.mvelocity[0][i] - cl.mvelocity[1][i]);
if(cls.demoplayback){
// interpolate the angles
for(j = 0; j < 3; j++){
d = cl.mviewangles[0][j] - cl.mviewangles[1][j];
if(d > 180)
d -= 360;
else if(d < -180)
d += 360;
cl.viewangles[j] = cl.mviewangles[1][j] + frac*d;
}
}
bobjrotate = anglemod(100*cl.time);
// start on the entity after the world
for (i=1,ent=cl_entities+1 ; i<cl.num_entities ; i++,ent++)
{
if (!ent->model)
{ // empty slot
if (ent->forcelink)
R_RemoveEfrags (ent); // just became empty
continue;
}
// if the object wasn't included in the last packet, remove it
if (ent->msgtime != cl.mtime[0])
{
ent->model = nil;
continue;
}
VectorCopy (ent->origin, oldorg);
CL_ApplyInterpolation(ent, frac);
// rotate binary objects locally
if (ent->model->flags & EF_ROTATE)
ent->angles[1] = bobjrotate;
if (ent->effects & EF_BRIGHTFIELD)
R_EntityParticles (ent);
if (ent->effects & EF_MUZZLEFLASH)
{
vec3_t fv, rv, uv;
dl = CL_AllocDlight (i);
VectorCopy (ent->origin, dl->origin);
dl->origin[2] += 16;
AngleVectors (ent->angles, fv, rv, uv);
VectorMA (dl->origin, 18, fv, dl->origin);
dl->radius = 200 + (rand()&31);
dl->minlight = 32;
dl->die = cl.time + 0.1;
}
if (ent->effects & EF_BRIGHTLIGHT)
{
dl = CL_AllocDlight (i);
VectorCopy (ent->origin, dl->origin);
dl->origin[2] += 16;
dl->radius = 400 + (rand()&31);
dl->die = cl.time + 0.001;
}
if (ent->effects & EF_DIMLIGHT)
{
dl = CL_AllocDlight (i);
VectorCopy (ent->origin, dl->origin);
dl->radius = 200 + (rand()&31);
dl->die = cl.time + 0.001;
}
if (ent->model->flags & EF_GIB)
R_RocketTrail (oldorg, ent->origin, 2);
else if (ent->model->flags & EF_ZOMGIB)
R_RocketTrail (oldorg, ent->origin, 4);
else if (ent->model->flags & EF_TRACER)
R_RocketTrail (oldorg, ent->origin, 3);
else if (ent->model->flags & EF_TRACER2)
R_RocketTrail (oldorg, ent->origin, 5);
else if (ent->model->flags & EF_ROCKET)
{
R_RocketTrail (oldorg, ent->origin, 0);
dl = CL_AllocDlight (i);
VectorCopy (ent->origin, dl->origin);
dl->radius = 200;
dl->die = cl.time + 0.01;
}
else if (ent->model->flags & EF_GRENADE)
R_RocketTrail (oldorg, ent->origin, 1);
else if (ent->model->flags & EF_TRACER3)
R_RocketTrail (oldorg, ent->origin, 6);
ent->forcelink = false;
if ((ent->effects & EF_NODRAW) != 0 || (i == cl.viewentity && !chase_active.value))
continue;
if (cl_numvisedicts < MAX_VISEDICTS)
{
cl_visedicts[cl_numvisedicts] = ent;
cl_numvisedicts++;
}
}
}
/*
===============
CL_ReadFromServer
Read all incoming data from the server
===============
*/
int CL_ReadFromServer (void)
{
int ret;
cl.oldtime = cl.time;
cl.time += host_frametime;
do
{
ret = readcl ();
if (ret == -1)
Host_Error ("CL_ReadFromServer: lost server connection");
if (!ret)
break;
cl.last_received_message = realtime;
CL_ParseServerMessage ();
} while (ret && cls.state == ca_connected);
if (cl_shownet.value)
Con_Printf ("\n");
CL_RelinkEntities ();
CL_UpdateTEnts ();
// bring the links up to date
return 0;
}
/*
=================
CL_SendCmd
=================
*/
void CL_SendCmd (void)
{
usercmd_t cmd;
if (cls.state != ca_connected)
return;
if (cls.signon == SIGNONS)
{
// get basic movement from keyboard
CL_BaseMove (&cmd);
// allow mice or other external controllers to add to the move
IN_Move (&cmd);
// send the unreliable message
CL_SendMove (&cmd);
}
if (cls.demoplayback)
{
SZ_Clear (&cls.message);
return;
}
// send the reliable message
if (!cls.message.cursize)
return; // no message at all
if (!NET_CanSendMessage (cls.netcon))
{
Con_DPrintf("CL_WriteToServer: can't send\n");
return;
}
if (NET_SendMessage (cls.netcon, &cls.message) == -1)
Host_Error ("CL_WriteToServer: lost server connection");
SZ_Clear (&cls.message);
}
/*
=================
CL_Init
=================
*/
void CL_Init (void)
{
SZ_Alloc (&cls.message, MAX_DATAGRAM);
cls.message.name = "cls.message";
cl_visedicts = Hunk_Alloc(MAX_VISEDICTS * sizeof(*cl_visedicts));
cl_efrags = Hunk_Alloc(MAX_EFRAGS * sizeof(*cl_efrags));
cl_entities = Hunk_Alloc(MAX_EDICTS * sizeof(*cl_entities));
cl_static_entities = Hunk_Alloc(MAX_STATIC_ENTITIES * sizeof(*cl_static_entities));
CL_InitInput ();
CL_InitTEnts ();
// register our commands
Cvar_RegisterVariable (&cl_name);
Cvar_RegisterVariable (&cl_color);
Cvar_RegisterVariable (&cl_upspeed);
Cvar_RegisterVariable (&cl_forwardspeed);
Cvar_RegisterVariable (&cl_backspeed);
Cvar_RegisterVariable (&cl_sidespeed);
Cvar_RegisterVariable (&cl_movespeedkey);
Cvar_RegisterVariable (&cl_yawspeed);
Cvar_RegisterVariable (&cl_pitchspeed);
Cvar_RegisterVariable (&cl_anglespeedkey);
Cvar_RegisterVariable (&cl_shownet);
Cvar_RegisterVariable (&cl_nolerp);
Cvar_RegisterVariable (&lookspring);
Cvar_RegisterVariable (&lookstrafe);
Cvar_RegisterVariable (&sensitivity);
Cvar_RegisterVariable (&m_pitch);
Cvar_RegisterVariable (&m_yaw);
Cvar_RegisterVariable (&m_forward);
Cvar_RegisterVariable (&m_side);
Cmd_AddCommand("entities", CL_PrintEntities_f);
Cmd_AddCommand("disconnect", CL_Disconnect_f);
Cmd_AddCommand("stop", stopdemo);
Cmd_AddCommand("record", recdemo);
Cmd_AddCommand("playdemo", playdemo);
Cmd_AddCommand("timedemo", timedemo);
}