qf
/
quakeforge
mirror of https://git.code.sf.net/p/quake/quakeforge
0
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
quakeforge/qw/source/cl_entparse.c

664 lines
16 KiB
C
Raw Blame History

/*
cl_ents.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__ ((used)) const char rcsid[] =
"$Id$";
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_STRINGS_H
# include <strings.h>
#endif
#include "QF/cvar.h"
#include "QF/locs.h"
#include "QF/msg.h"
#include "QF/render.h"
#include "QF/skin.h"
#include "QF/sys.h"
#include "qw/msg_ucmd.h"
#include "qw/bothdefs.h"
#include "cl_cam.h"
#include "cl_ents.h"
#include "cl_main.h"
#include "cl_parse.h"
#include "cl_pred.h"
#include "cl_tent.h"
#include "compat.h"
#include "d_iface.h"
#include "host.h"
#include "qw/pmove.h"
#include "r_cvar.h"
#include "r_dynamic.h"
#include "clview.h"
static struct predicted_player {
int flags;
qboolean active;
vec3_t origin; // predicted origin
} predicted_players[MAX_CLIENTS];
// PACKET ENTITY PARSING / LINKING ============================================
/*
CL_ParseDelta
Can go from either a baseline or a previous packet_entity
*/
static void
CL_ParseDelta (entity_state_t *from, entity_state_t *to, int bits)
{
int i;
// set everything to the state we are delta'ing from
*to = *from;
to->number = bits & 511;
bits &= ~511;
if (bits & U_MOREBITS) { // read in the low order bits
i = MSG_ReadByte (net_message);
bits |= i;
}
// LordHavoc: Endy neglected to mark this as being part of the QSG
// version 2 stuff...
if (bits & U_EXTEND1) {
bits |= MSG_ReadByte (net_message) << 16;
if (bits & U_EXTEND2)
bits |= MSG_ReadByte (net_message) << 24;
}
to->flags = bits;
if (bits & U_MODEL)
to->modelindex = MSG_ReadByte (net_message);
if (bits & U_FRAME)
to->frame = MSG_ReadByte (net_message);
if (bits & U_COLORMAP)
to->colormap = MSG_ReadByte (net_message);
if (bits & U_SKIN)
to->skinnum = MSG_ReadByte (net_message);
if (bits & U_EFFECTS)
to->effects = MSG_ReadByte (net_message);
if (bits & U_ORIGIN1)
to->origin[0] = MSG_ReadCoord (net_message);
if (bits & U_ANGLE1)
to->angles[0] = MSG_ReadAngle (net_message);
if (bits & U_ORIGIN2)
to->origin[1] = MSG_ReadCoord (net_message);
if (bits & U_ANGLE2)
to->angles[1] = MSG_ReadAngle (net_message);
if (bits & U_ORIGIN3)
to->origin[2] = MSG_ReadCoord (net_message);
if (bits & U_ANGLE3)
to->angles[2] = MSG_ReadAngle (net_message);
if (bits & U_SOLID) {
// FIXME
}
if (!(bits & U_EXTEND1))
return;
// LordHavoc: Endy neglected to mark this as being part of the QSG
// version 2 stuff... rearranged it and implemented missing effects
// Ender (QSG - Begin)
if (bits & U_ALPHA)
to->alpha = MSG_ReadByte (net_message);
if (bits & U_SCALE)
to->scale = MSG_ReadByte (net_message);
if (bits & U_EFFECTS2)
to->effects = (to->effects & 0xFF) | (MSG_ReadByte (net_message) << 8);
if (bits & U_GLOWSIZE)
to->glow_size = MSG_ReadByte (net_message);
if (bits & U_GLOWCOLOR)
to->glow_color = MSG_ReadByte (net_message);
if (bits & U_COLORMOD)
to->colormod = MSG_ReadByte (net_message);
if (!(bits & U_EXTEND2))
return;
if (bits & U_FRAME2)
to->frame = (to->frame & 0xFF) | (MSG_ReadByte (net_message) << 8);
// Ender (QSG - End)
}
static void
FlushEntityPacket (void)
{
entity_state_t olde, newe;
int word;
Sys_MaskPrintf (SYS_DEV, "FlushEntityPacket\n");
memset (&olde, 0, sizeof (olde));
cl.validsequence = 0; // can't render a frame
cl.frames[cls.netchan.incoming_sequence & UPDATE_MASK].invalid = true;
// read it all, but ignore it
while (1) {
word = MSG_ReadShort (net_message);
if (net_message->badread) { // something didn't parse right...
Host_Error ("msg_badread in packetentities");
return;
}
if (!word)
break; // done
CL_ParseDelta (&olde, &newe, word);
}
}
void
CL_ParsePacketEntities (qboolean delta)
{
byte from;
int oldindex, newindex, newnum, oldnum, oldpacket, newpacket, word;
packet_entities_t *oldp, *newp, dummy;
qboolean full;
newpacket = cls.netchan.incoming_sequence & UPDATE_MASK;
newp = &cl.frames[newpacket].packet_entities;
cl.frames[newpacket].invalid = false;
if (delta) {
from = MSG_ReadByte (net_message);
oldpacket = cl.frames[newpacket].delta_sequence;
if (cls.demoplayback2)
from = oldpacket = (cls.netchan.incoming_sequence - 1);
if ((from & UPDATE_MASK) != (oldpacket & UPDATE_MASK))
Sys_MaskPrintf (SYS_DEV, "WARNING: from mismatch\n");
} else
oldpacket = -1;
full = false;
if (oldpacket != -1) {
if (cls.netchan.outgoing_sequence - oldpacket >= UPDATE_BACKUP - 1) {
// we can't use this, it is too old
FlushEntityPacket ();
return;
}
cl.validsequence = cls.netchan.incoming_sequence;
oldp = &cl.frames[oldpacket & UPDATE_MASK].packet_entities;
} else { // a full update that we can start delta compressing from now
oldp = &dummy;
dummy.num_entities = 0;
cl.validsequence = cls.netchan.incoming_sequence;
full = true;
}
oldindex = 0;
newindex = 0;
newp->num_entities = 0;
while (1) {
word = MSG_ReadShort (net_message);
if (net_message->badread) { // something didn't parse right...
Host_Error ("msg_badread in packetentities");
return;
}
if (!word) { // copy rest of ents from old packet
while (oldindex < oldp->num_entities) {
if (newindex >= MAX_DEMO_PACKET_ENTITIES)
Host_Error ("CL_ParsePacketEntities: newindex == "
"MAX_DEMO_PACKET_ENTITIES");
newp->entities[newindex] = oldp->entities[oldindex];
newindex++;
oldindex++;
}
break;
}
newnum = word & 511;
oldnum = oldindex >= oldp->num_entities ? 9999 :
oldp->entities[oldindex].number;
while (newnum > oldnum) {
if (full) {
Sys_Printf ("WARNING: oldcopy on full update");
FlushEntityPacket ();
return;
}
// copy one of the old entities over to the new packet unchanged
if (newindex >= MAX_DEMO_PACKET_ENTITIES)
Host_Error ("CL_ParsePacketEntities: newindex == "
"MAX_DEMO_PACKET_ENTITIES");
newp->entities[newindex] = oldp->entities[oldindex];
newindex++;
oldindex++;
oldnum = oldindex >= oldp->num_entities ? 9999 :
oldp->entities[oldindex].number;
}
if (newnum < oldnum) { // new from baseline
if (word & U_REMOVE) {
if (full) {
cl.validsequence = 0;
Sys_Printf ("WARNING: U_REMOVE on full update\n");
FlushEntityPacket ();
return;
}
continue;
}
if (newindex >= MAX_DEMO_PACKET_ENTITIES)
Host_Error ("CL_ParsePacketEntities: newindex == "
"MAX_DEMO_PACKET_ENTITIES");
CL_ParseDelta (&cl_baselines[newnum], &newp->entities[newindex],
word);
newindex++;
continue;
}
if (newnum == oldnum) { // delta from previous
if (full) {
cl.validsequence = 0;
Sys_Printf ("WARNING: delta on full update");
}
if (word & U_REMOVE) { // Clear the entity
entity_t *ent = &cl_packet_ents[newnum];
if (ent->efrag)
R_RemoveEfrags (ent);
memset (ent, 0, sizeof (entity_t));
oldindex++;
continue;
}
CL_ParseDelta (&oldp->entities[oldindex],
&newp->entities[newindex], word);
newindex++;
oldindex++;
}
}
newp->num_entities = newindex;
}
static int
TranslateFlags (int src)
{
int dst = 0;
if (src & DF_EFFECTS)
dst |= PF_EFFECTS;
if (src & DF_SKINNUM)
dst |= PF_SKINNUM;
if (src & DF_DEAD)
dst |= PF_DEAD;
if (src & DF_GIB)
dst |= PF_GIB;
if (src & DF_WEAPONFRAME)
dst |= PF_WEAPONFRAME;
if (src & DF_MODEL)
dst |= PF_MODEL;
return dst;
}
static void
CL_ParseDemoPlayerinfo (int num)
{
int flags, i;
player_info_t *info;
player_state_t *state, *prevstate;
static player_state_t dummy;
info = &cl.players[num];
state = &cl.frames[parsecountmod].playerstate[num];
state->pls.number = num;
if (info->prevcount > cl.parsecount || !cl.parsecount) {
prevstate = &dummy;
} else {
if (cl.parsecount - info->prevcount >= UPDATE_BACKUP-1)
prevstate = &dummy;
else
prevstate = &cl.frames[info->prevcount
& UPDATE_MASK].playerstate[num];
}
info->prevcount = cl.parsecount;
if (cls.findtrack && info->stats[STAT_HEALTH] != 0) {
autocam = CAM_TRACK;
Cam_Lock (num);
ideal_track = num;
cls.findtrack = false;
}
memcpy (state, prevstate, sizeof (player_state_t));
flags = MSG_ReadShort (net_message);
state->pls.flags = TranslateFlags (flags);
state->messagenum = cl.parsecount;
state->pls.cmd.msec = 0;
state->pls.frame = MSG_ReadByte (net_message);
state->state_time = parsecounttime;
for (i=0; i <3; i++)
if (flags & (DF_ORIGIN << i))
state->pls.origin[i] = MSG_ReadCoord (net_message);
for (i=0; i <3; i++)
if (flags & (DF_ANGLES << i))
state->pls.cmd.angles[i] = MSG_ReadAngle16 (net_message);
if (flags & DF_MODEL)
state->pls.modelindex = MSG_ReadByte (net_message);
if (flags & DF_SKINNUM)
state->pls.skinnum = MSG_ReadByte (net_message);
if (flags & DF_EFFECTS)
state->pls.effects = MSG_ReadByte (net_message);
if (flags & DF_WEAPONFRAME)
state->pls.weaponframe = MSG_ReadByte (net_message);
VectorCopy (state->pls.cmd.angles, state->viewangles);
}
void
CL_ParsePlayerinfo (void)
{
int flags, msec, num, i;
player_state_t *state;
num = MSG_ReadByte (net_message);
if (num > MAX_CLIENTS)
Host_Error ("CL_ParsePlayerinfo: bad num");
if (cls.demoplayback2) {
CL_ParseDemoPlayerinfo (num);
return;
}
state = &cl.frames[parsecountmod].playerstate[num];
state->pls.number = num;
flags = state->pls.flags = MSG_ReadShort (net_message);
state->messagenum = cl.parsecount;
MSG_ReadCoordV (net_message, state->pls.origin);
state->pls.frame = MSG_ReadByte (net_message);
// the other player's last move was likely some time
// before the packet was sent out, so accurately track
// the exact time it was valid at
if (flags & PF_MSEC) {
msec = MSG_ReadByte (net_message);
state->state_time = parsecounttime - msec * 0.001;
} else
state->state_time = parsecounttime;
if (flags & PF_COMMAND)
MSG_ReadDeltaUsercmd (net_message, &nullcmd, &state->pls.cmd);
for (i = 0; i < 3; i++) {
if (flags & (PF_VELOCITY1 << i))
state->pls.velocity[i] = (short) MSG_ReadShort (net_message);
else
state->pls.velocity[i] = 0;
}
if (flags & PF_MODEL)
i = MSG_ReadByte (net_message);
else
i = cl_playerindex;
state->pls.modelindex = i;
if (flags & PF_SKINNUM)
state->pls.skinnum = MSG_ReadByte (net_message);
else
state->pls.skinnum = 0;
if (flags & PF_EFFECTS)
state->pls.effects = MSG_ReadByte (net_message);
else
state->pls.effects = 0;
if (flags & PF_WEAPONFRAME)
state->pls.weaponframe = MSG_ReadByte (net_message);
else
state->pls.weaponframe = 0;
VectorCopy (state->pls.cmd.angles, state->viewangles);
if (cl.stdver >= 2.0 && (flags & PF_QF)) {
// QSG2
int bits;
byte val;
entity_t *ent;
ent = &cl_player_ents[num];
bits = MSG_ReadByte (net_message);
if (bits & PF_ALPHA) {
val = MSG_ReadByte (net_message);
ent->colormod[3] = val / 255.0;
}
if (bits & PF_SCALE) {
val = MSG_ReadByte (net_message);
ent->scale = val / 16.0;
}
if (bits & PF_EFFECTS2) {
state->pls.effects |= MSG_ReadByte (net_message) << 8;
}
if (bits & PF_GLOWSIZE) {
state->pls.glow_size = MSG_ReadByte (net_message);
}
if (bits & PF_GLOWCOLOR) {
state->pls.glow_color = MSG_ReadByte (net_message);
}
if (bits & PF_COLORMOD) {
float r = 1.0, g = 1.0, b = 1.0;
val = MSG_ReadByte (net_message);
if (val != 255) {
r = (float) ((val >> 5) & 7) * (1.0 / 7.0);
g = (float) ((val >> 2) & 7) * (1.0 / 7.0);
b = (float) (val & 3) * (1.0 / 3.0);
}
VectorSet (r, g, b, ent->colormod);
}
if (bits & PF_FRAME2) {
state->pls.frame |= MSG_ReadByte (net_message) << 8;
}
}
}
/*
CL_SetSolid
Builds all the pmove physents for the current frame
*/
void
CL_SetSolidEntities (void)
{
int i;
entity_state_t *state;
frame_t *frame;
packet_entities_t *pak;
pmove.physents[0].model = cl.worldmodel;
VectorZero (pmove.physents[0].origin);
pmove.physents[0].info = 0;
pmove.numphysent = 1;
frame = &cl.frames[parsecountmod];
pak = &frame->packet_entities;
for (i = 0; i < pak->num_entities; i++) {
state = &pak->entities[i];
if (!state->modelindex)
continue;
if (!cl.model_precache[state->modelindex])
continue;
if (cl.model_precache[state->modelindex]->hulls[1].firstclipnode
|| cl.model_precache[state->modelindex]->clipbox) {
if (pmove.numphysent == MAX_PHYSENTS) {
Sys_Printf ("WARNING: entity physent overflow, email "
"quakeforge-devel@lists.quakeforge.net\n");
break;
}
pmove.physents[pmove.numphysent].model =
cl.model_precache[state->modelindex];
VectorCopy (state->origin,
pmove.physents[pmove.numphysent].origin);
pmove.numphysent++;
}
}
}
void
CL_ClearPredict (void)
{
memset (predicted_players, 0, sizeof (predicted_players));
//fixangle = 0;
}
/*
Calculate the new position of players, without other player clipping
We do this to set up real player prediction.
Players are predicted twice, first without clipping other players,
then with clipping against them.
This sets up the first phase.
*/
void
CL_SetUpPlayerPrediction (qboolean dopred)
{
double playertime;
frame_t *frame;
int msec, j;
player_state_t exact;
player_state_t *state;
struct predicted_player *pplayer;
playertime = realtime - cls.latency + 0.02;
if (playertime > realtime)
playertime = realtime;
frame = &cl.frames[cl.parsecount & UPDATE_MASK];
for (j = 0, pplayer = predicted_players, state = frame->playerstate;
j < MAX_CLIENTS; j++, pplayer++, state++) {
pplayer->active = false;
if (state->messagenum != cl.parsecount)
continue; // not present this frame
if (!state->pls.modelindex)
continue;
pplayer->active = true;
pplayer->flags = state->pls.flags;
// note that the local player is special, since he moves locally
// we use his last predicted postition
if (j == cl.playernum) {
VectorCopy (cl.frames[cls.netchan.outgoing_sequence & UPDATE_MASK].
playerstate[cl.playernum].pls.origin, pplayer->origin);
} else {
// predict only half the move to minimize overruns
msec = 500 * (playertime - state->state_time);
if (msec <= 0 || !dopred) {
VectorCopy (state->pls.origin, pplayer->origin);
// Sys_MaskPrintf (SYS_DEV, "nopredict\n");
} else {
// predict players movement
state->pls.cmd.msec = msec = min (msec, 255);
// Sys_MaskPrintf (SYS_DEV, "predict: %i\n", msec);
CL_PredictUsercmd (state, &exact, &state->pls.cmd, false);
VectorCopy (exact.pls.origin, pplayer->origin);
}
}
}
}
/*
CL_SetSolid
Builds all the pmove physents for the current frame
Note that CL_SetUpPlayerPrediction () must be called first!
pmove must be setup with world and solid entity hulls before calling
(via CL_PredictMove)
*/
void
CL_SetSolidPlayers (int playernum)
{
int j;
physent_t *pent;
struct predicted_player *pplayer;
if (!cl_solid_players->int_val)
return;
pent = pmove.physents + pmove.numphysent;
for (j = 0, pplayer = predicted_players; j < MAX_CLIENTS; j++, pplayer++) {
if (!pplayer->active)
continue; // not present this frame
// the player object never gets added
if (j == playernum)
continue;
if (pplayer->flags & PF_DEAD)
continue; // dead players aren't solid
if (pmove.numphysent == MAX_PHYSENTS) {
Sys_Printf ("WARNING: player physent overflow, email "
"quakeforge-devel@lists.quakeforge.net\n");
break;
}
pent->model = 0;
VectorCopy (pplayer->origin, pent->origin);
VectorCopy (player_mins, pent->mins);
VectorCopy (player_maxs, pent->maxs);
pmove.numphysent++;
pent++;
}
}
Reference in New Issue View Git Blame Copy Permalink