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quakeforge/nq/source/cl_main.c
Bill Currie e5ccf09aa0 oops, old_origin is for trails
2004-03-15 00:32:49 +00:00

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/*
cl_main.c
entity parsing and management
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
static __attribute__ ((unused)) const char rcsid[] =
"$Id$";
#include "QF/cbuf.h"
#include "QF/cmd.h"
#include "QF/console.h"
#include "QF/cvar.h"
#include "QF/input.h"
#include "QF/keys.h"
#include "QF/msg.h"
#include "QF/plugin.h"
#include "QF/render.h"
#include "QF/screen.h"
#include "QF/skin.h"
#include "QF/va.h"
#include "chase.h"
#include "client.h"
#include "compat.h"
#include "host.h"
#include "host.h"
#include "r_cvar.h"
#include "r_dynamic.h"
#include "server.h"
byte *vid_colormap;
// these two are not intended to be set directly
cvar_t *cl_name;
cvar_t *cl_writecfg;
cvar_t *cl_shownet;
cvar_t *cl_nolerp;
cvar_t *cl_cshift_bonus;
cvar_t *cl_cshift_contents;
cvar_t *cl_cshift_damage;
cvar_t *cl_cshift_powerup;
cvar_t *lookspring;
cvar_t *m_pitch;
cvar_t *m_yaw;
cvar_t *m_forward;
cvar_t *m_side;
cvar_t *hud_fps;
cvar_t *hud_time;
int fps_count;
client_static_t cls;
client_state_t cl;
// FIXME: put these on hunk?
entity_t cl_entities[MAX_EDICTS];
cl_entity_state_t cl_baselines[MAX_EDICTS];
entity_t cl_static_entities[MAX_STATIC_ENTITIES];
void
CL_InitCvars (void)
{
cl_cshift_bonus = Cvar_Get ("cl_cshift_bonus", "1", CVAR_ARCHIVE, NULL,
"Show bonus flash on item pickup");
cl_cshift_contents = Cvar_Get ("cl_cshift_content", "1", CVAR_ARCHIVE,
NULL, "Shift view colors for contents "
"(water, slime, etc)");
cl_cshift_damage = Cvar_Get ("cl_cshift_damage", "1", CVAR_ARCHIVE, NULL,
"Shift view colors on damage");
cl_cshift_powerup = Cvar_Get ("cl_cshift_powerup", "1", CVAR_ARCHIVE, NULL, "Shift view colors for powerups");
cl_name = Cvar_Get ("_cl_name", "player", CVAR_ARCHIVE, NULL,
"Player name");
cl_color = Cvar_Get ("_cl_color", "0", CVAR_ARCHIVE, NULL, "Player color");
cl_anglespeedkey = Cvar_Get ("cl_anglespeedkey", "1.5", CVAR_NONE, NULL,
"turn `run' speed multiplier");
cl_backspeed = Cvar_Get ("cl_backspeed", "200", CVAR_ARCHIVE, NULL,
"backward speed");
cl_forwardspeed = Cvar_Get ("cl_forwardspeed", "200", CVAR_ARCHIVE, NULL,
"forward speed");
cl_movespeedkey = Cvar_Get ("cl_movespeedkey", "2.0", CVAR_NONE, NULL,
"move `run' speed multiplier");
cl_pitchspeed = Cvar_Get ("cl_pitchspeed", "150", CVAR_NONE, NULL,
"look up/down speed");
cl_sidespeed = Cvar_Get ("cl_sidespeed", "350", CVAR_NONE, NULL,
"strafe speed");
cl_upspeed = Cvar_Get ("cl_upspeed", "200", CVAR_NONE, NULL,
"swim/fly up/down speed");
cl_yawspeed = Cvar_Get ("cl_yawspeed", "140", CVAR_NONE, NULL,
"turning speed");
cl_writecfg = Cvar_Get ("cl_writecfg", "1", CVAR_NONE, NULL,
"write config files?");
cl_shownet = Cvar_Get ("cl_shownet", "0", CVAR_NONE, NULL,
"show network packets. 0=off, 1=basic, 2=verbose");
cl_nolerp = Cvar_Get ("cl_nolerp", "0", CVAR_NONE, NULL,
"linear motion interpolation");
lookspring = Cvar_Get ("lookspring", "0", CVAR_ARCHIVE, NULL, "Snap view "
"to center when moving and no mlook/klook");
m_pitch = Cvar_Get ("m_pitch", "0.022", CVAR_ARCHIVE, NULL,
"mouse pitch (up/down) multipier");
m_yaw = Cvar_Get ("m_yaw", "0.022", CVAR_ARCHIVE, NULL,
"mouse yaw (left/right) multipiler");
m_forward = Cvar_Get ("m_forward", "1", CVAR_ARCHIVE, NULL,
"mouse forward/back speed");
m_side = Cvar_Get ("m_side", "0.8", CVAR_ARCHIVE, NULL,
"mouse strafe speed");
hud_fps = Cvar_Get ("hud_fps", "0", CVAR_ARCHIVE, NULL,
"display realtime frames per second");
hud_time = Cvar_Get ("hud_time", "0", CVAR_ARCHIVE, NULL,
"display the current time");
}
void
CL_ClearState (void)
{
int i;
if (!sv.active)
Host_ClearMemory ();
// wipe the entire cl structure
memset (&cl, 0, sizeof (cl));
CL_Init_Entity (&cl.viewent);
SZ_Clear (&cls.message);
// clear other arrays
memset (cl_entities, 0, sizeof (cl_entities));
memset (cl_baselines, 0, sizeof (cl_baselines));
memset (r_lightstyle, 0, sizeof (r_lightstyle));
Skin_ClearTempSkins ();
CL_ClearTEnts ();
R_ClearEfrags ();
R_ClearDlights ();
R_ClearParticles ();
for (i = 0; i < MAX_EDICTS; i++) {
cl_baselines[i].ent = &cl_entities[i];
CL_Init_Entity (cl_entities + i);
}
}
/*
CL_StopCshifts
Cleans the Cshifts, so your screen doesn't stay red after a timedemo :)
*/
static void
CL_StopCshifts (void)
{
int i;
for (i = 0; i < NUM_CSHIFTS; i++)
cl.cshifts[i].percent = 0;
for (i = 0; i < MAX_CL_STATS; i++)
cl.stats[i] = 0;
}
/*
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)
{
// stop sounds (especially looping!)
S_StopAllSounds (true);
// Clean the Cshifts
CL_StopCshifts ();
// bring the console down and fade the colors back to normal
// SCR_BringDownConsole ();
// if running a local server, shut it down
if (cls.demoplayback)
CL_StopPlayback ();
else if (cls.state == ca_connected) {
if (cls.demorecording)
CL_Stop_f ();
Con_DPrintf ("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);
CL_SetState (ca_disconnected);
if (sv.active)
Host_ShutdownServer (false);
}
cls.signon = 0;
cl.worldmodel = NULL;
}
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 (const 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
CL_SetState (ca_connected);
cls.signon = 0; // need all the signon messages
// before playing
key_dest = key_game;
game_target = IMT_0;
}
/*
CL_SignonReply
An svc_signonnum has been received, perform a client side setup
*/
void
CL_SignonReply (void)
{
char str[8192];
Con_DPrintf ("CL_SignonReply: %i\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 %i %i\n", (cl_color->int_val) >> 4,
(cl_color->int_val) & 15));
MSG_WriteByte (&cls.message, clc_stringcmd);
snprintf (str, sizeof (str), "spawn %s", cls.spawnparms);
MSG_WriteString (&cls.message, str);
break;
case 3:
MSG_WriteByte (&cls.message, clc_stringcmd);
MSG_WriteString (&cls.message, "begin");
Cache_Report (); // print remaining memory
break;
case 4:
// SCR_EndLoadingPlaque (); // allow normal screen updates
break;
}
}
/*
CL_NextDemo
Called to play the next demo in the demo loop
*/
void
CL_NextDemo (void)
{
char str[1024];
if (cls.demonum == -1)
return; // 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;
}
}
snprintf (str, sizeof (str), "playdemo %s\n", cls.demos[cls.demonum]);
Cbuf_InsertText (host_cbuf, str);
cls.demonum++;
}
static void
CL_PrintEntities_f (void)
{
entity_t *ent;
int i;
for (i = 0, ent = cl_entities; i < cl.num_entities; i++, ent++) {
Con_Printf ("%3i:", i);
if (!ent->model) {
Con_Printf ("EMPTY\n");
continue;
}
Con_Printf ("%s:%2i (%5.1f,%5.1f,%5.1f) [%5.1f %5.1f %5.1f]\n",
ent->model->name, ent->frame, ent->origin[0],
ent->origin[1], ent->origin[2], ent->angles[0],
ent->angles[1], ent->angles[2]);
}
}
/*
SetPal
Debugging tool, just flashes the screen
*/
static void
SetPal (int i)
{
#if 0
byte pal[768];
int c;
static int old;
if (i == old)
return;
old = i;
if (i == 0)
VID_SetPalette (vid.palette);
else if (i == 1) {
for (c = 0; c < 768; c += 3) {
pal[c] = 0;
pal[c + 1] = 255;
pal[c + 2] = 0;
}
VID_SetPalette (pal);
} else {
for (c = 0; c < 768; c += 3) {
pal[c] = 0;
pal[c + 1] = 0;
pal[c + 2] = 255;
}
VID_SetPalette (pal);
}
#endif
}
static void
CL_NewDlight (int key, vec3_t org, int effects)
{
float radius;
float time = 0.1;
dlight_t *dl;
static vec3_t normal = {0.4, 0.2, 0.05};
static vec3_t red = {0.5, 0.05, 0.05};
static vec3_t blue = {0.05, 0.05, 0.5};
static vec3_t purple = {0.5, 0.05, 0.5};
if (!(effects & (EF_BLUE | EF_RED | EF_BRIGHTLIGHT | EF_DIMLIGHT)))
return;
dl = R_AllocDlight (key);
if (!dl)
return;
VectorCopy (org, dl->origin);
radius = 200 + (rand () & 31);
if (effects & EF_BRIGHTLIGHT) {
radius += 200;
dl->origin[2] += 16;
}
if (effects & EF_DIMLIGHT)
if (effects & ~EF_DIMLIGHT)
radius -= 100;
dl->radius = radius;
dl->die = cl.time + time;
switch (effects & (EF_BLUE | EF_RED)) {
case EF_RED | EF_BLUE:
VectorCopy (purple, dl->color);
break;
case EF_RED:
VectorCopy (red, dl->color);
break;
case EF_BLUE:
VectorCopy (blue, dl->color);
break;
default:
VectorCopy (normal, dl->color);
break;
}
}
/*
CL_LerpPoint
Determines the fraction between the last two messages that the objects
should be put at.
*/
static float
CL_LerpPoint (void)
{
float f, frac;
f = cl.mtime[0] - cl.mtime[1];
if (!f || cl_nolerp->int_val || 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) {
SetPal (1);
cl.time = cl.mtime[1];
}
frac = 0;
} else if (frac > 1) {
if (frac > 1.01) {
SetPal (2);
cl.time = cl.mtime[0];
}
frac = 1;
} else
SetPal (0);
return frac;
}
static void
CL_RelinkEntities (void)
{
entity_t *ent;
cl_entity_state_t *state;
dlight_t *dl;
float bobjrotate, frac, f, d;
int i, j;
vec3_t delta;
r_player_entity = &cl_entities[cl.viewentity];
// determine partial update time
frac = CL_LerpPoint ();
// 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, state = cl_baselines + 1; i < cl.num_entities; i++, state++) {
ent = state->ent;
if (!ent->model) { // empty slot
if (ent->efrag)
R_RemoveEfrags (ent); // just became empty
continue;
}
// if the object wasn't included in the last packet, remove it
if (state->msgtime != cl.mtime[0]) {
ent->model = NULL;
ent->pose1 = ent->pose2 = -1;
if (ent->efrag)
R_RemoveEfrags (ent); // just became empty
continue;
}
VectorCopy (ent->origin, ent->old_origin);
if (state->forcelink) {
// The entity was not updated in the last message so move to the
// final spot
if (i != cl.viewentity || chase_active->int_val) {
if (ent->efrag)
R_RemoveEfrags (ent);
R_AddEfrags (ent);
}
} else {
// If the delta is large, assume a teleport and don't lerp
f = frac;
VectorSubtract (state->msg_origins[0],
state->msg_origins[1], delta);
if (fabs (delta[0]) > 100 || fabs (delta[1] > 100)
|| fabs (delta[2]) > 100) {
// assume a teleportation, not a motion
VectorCopy (state->msg_origins[0], ent->origin);
VectorCopy (state->msg_angles[0], ent->angles);
ent->pose1 = ent->pose2 = -1;
} else {
VectorMultAdd (state->msg_origins[1], f, delta, ent->origin);
// interpolate the origin and angles
for (j = 0; j < 3; j++) {
d = state->msg_angles[0][j] - state->msg_angles[1][j];
if (d > 180)
d -= 360;
else if (d < -180)
d += 360;
ent->angles[j] = state->msg_angles[1][j] + f * d;
}
}
if (i != cl.viewentity || chase_active->int_val) {
if (ent->efrag) {
if (!VectorCompare (ent->origin, ent->old_origin)) {
R_RemoveEfrags (ent);
R_AddEfrags (ent);
}
} else {
R_AddEfrags (ent);
}
}
}
// rotate binary objects locally
if (ent->model->flags & EF_ROTATE)
ent->angles[1] = bobjrotate;
if (state->effects & EF_BRIGHTFIELD)
R_EntityParticles (ent);
if (state->effects & EF_MUZZLEFLASH) {
vec3_t fv, rv, uv;
dl = R_AllocDlight (i);
if (dl) {
AngleVectors (ent->angles, fv, rv, uv);
VectorMultAdd (ent->origin, 18, fv, dl->origin);
dl->origin[2] += 16;
dl->radius = 200 + (rand () & 31);
dl->die = cl.time + 0.1;
dl->minlight = 32;
dl->color[0] = 0.2;
dl->color[1] = 0.1;
dl->color[2] = 0.05;
}
}
CL_NewDlight (i, ent->origin, state->effects);
if (VectorDistance_fast (state->msg_origins[1], ent->origin)
> (256 * 256))
VectorCopy (ent ->origin, state->msg_origins[1]);
if (ent->model->flags & EF_ROCKET) {
dl = R_AllocDlight (i);
if (dl) {
VectorCopy (ent->origin, dl->origin);
dl->radius = 200;
dl->die = cl.time + 0.1;
VectorCopy (r_firecolor->vec, dl->color);
}
R_RocketTrail (ent);
} else if (ent->model->flags & EF_GRENADE)
R_GrenadeTrail (ent);
else if (ent->model->flags & EF_GIB)
R_BloodTrail (ent);
else if (ent->model->flags & EF_ZOMGIB)
R_SlightBloodTrail (ent);
else if (ent->model->flags & EF_TRACER)
R_WizTrail (ent);
else if (ent->model->flags & EF_TRACER2)
R_FlameTrail (ent);
else if (ent->model->flags & EF_TRACER3)
R_VoorTrail (ent);
else if (ent->model->flags & EF_GLOWTRAIL)
R_GlowTrail (ent, state->glow_color);
state->forcelink = false;
}
}
/*
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 = CL_GetMessage ();
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->int_val)
Con_Printf ("\n");
R_ClearEnts ();
CL_RelinkEntities ();
CL_UpdateTEnts ();
// bring the links up to date
return 0;
}
void
CL_SendCmd (void)
{
usercmd_t cmd;
if (cls.state != ca_connected)
return;
if (cls.signon == SIGNONS) {
CL_BaseMove (&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);
}
void
CL_SetState (cactive_t state)
{
cactive_t old_state = cls.state;
cls.state = state;
if (old_state != state) {
if (state == ca_active) {
// entering active state
r_active = true;
game_target = IMT_0;
key_dest = key_game;
IN_ClearStates ();
VID_SetCaption ("");
} else if (old_state == ca_active) {
// leaving active state
r_active = false;
game_target = IMT_CONSOLE;
key_dest = key_console;
VID_SetCaption ("Disconnected");
}
}
if (con_module)
con_module->data->console->force_commandline = (state != ca_active);
}
static void
Force_CenterView_f (void)
{
cl.viewangles[PITCH] = 0;
}
void
CL_Init (void)
{
SZ_Alloc (&cls.message, 1024);
CL_InitInput ();
CL_TEnts_Init ();
CL_ClearState ();
Cmd_AddCommand ("entities", CL_PrintEntities_f, "No Description");
Cmd_AddCommand ("disconnect", CL_Disconnect_f, "No Description");
Cmd_AddCommand ("record", CL_Record_f, "No Description");
Cmd_AddCommand ("stop", CL_Stop_f, "No Description");
Cmd_AddCommand ("playdemo", CL_PlayDemo_f, "No Description");
Cmd_AddCommand ("timedemo", CL_TimeDemo_f, "No Description");
Cmd_AddCommand ("maplist", Con_Maplist_f, "List available maps");
Cmd_AddCommand ("skyboxlist", Con_Skyboxlist_f, "List skyboxes available");
Cmd_AddCommand ("demolist", Con_Demolist_DEM_f, "List available demos");
Cmd_AddCommand ("force_centerview", Force_CenterView_f, "force the view "
"to be level");
}
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