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quakeforge/nq/source/cl_ents.c

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/*
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
#include "QF/cbuf.h"
#include "QF/cmd.h"
#include "QF/console.h"
#include "QF/cvar.h"
#include "QF/entity.h"
#include "QF/input.h"
#include "QF/keys.h"
#include "QF/msg.h"
#include "QF/plist.h"
#include "QF/render.h"
#include "QF/screen.h"
#include "QF/skin.h"
#include "QF/sys.h"
#include "QF/va.h"
#include "QF/plugin/vid_render.h"
#include "compat.h"
#include "client/effects.h"
#include "client/temp_entities.h"
#include "nq/include/chase.h"
#include "nq/include/client.h"
#include "nq/include/host.h"
#include "nq/include/host.h"
#include "nq/include/server.h"
entity_t cl_entities[MAX_EDICTS];
double cl_msgtime[MAX_EDICTS];
byte cl_forcelink[MAX_EDICTS];
void
CL_ClearEnts (void)
{
size_t i;
for (i = 0; i < MAX_EDICTS; i++) {
CL_Init_Entity (cl_entities + i);
}
// clear other arrays
i = nq_entstates.num_frames * nq_entstates.num_entities;
memset (nq_entstates.frame[0], 0, i * sizeof (entity_state_t));
memset (cl_msgtime, 0, sizeof (cl_msgtime));
memset (cl_forcelink, 0, sizeof (cl_forcelink));
}
/*
CL_LerpPoint
Determines the fraction between the last two messages at which the
objects should be put.
*/
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)
cl.time = cl.mtime[1];
frac = 0;
} else if (frac > 1) {
if (frac > 1.01)
cl.time = cl.mtime[0];
frac = 1;
}
return frac;
}
static void
set_entity_model (entity_t *ent, int modelindex)
{
int i = ent - cl_entities;
renderer_t *renderer = &ent->renderer;
animation_t *animation = &ent->animation;
renderer->model = cl.model_precache[modelindex];
// automatic animation (torches, etc) can be either all together
// or randomized
if (renderer->model) {
if (renderer->model->synctype == ST_RAND) {
animation->syncbase = (float) (rand () & 0x7fff) / 0x7fff;
} else {
animation->syncbase = 0.0;
}
} else {
cl_forcelink[i] = true; // hack to make null model players work
}
animation->nolerp = 1; // don't try to lerp when the model has changed
if (i <= cl.maxclients) {
renderer->skin = mod_funcs->Skin_SetColormap (renderer->skin, i);
}
}
void
CL_RelinkEntities (void)
{
entity_t *ent;
entity_state_t *new, *old;
renderer_t *renderer;
animation_t *animation;
float bobjrotate, frac, f;
int i, j;
int entvalid;
int model_flags;
r_data->player_entity = &cl_entities[cl.viewentity];
// determine partial update time
frac = CL_LerpPoint ();
// interpolate player info
cl.viewstate.velocity = cl.frameVelocity[1]
+ frac * (cl.frameVelocity[0] - cl.frameVelocity[1]);
if (cls.demoplayback) {
// interpolate the angles
vec3_t d;
VectorSubtract (cl.frameViewAngles[0], cl.frameViewAngles[1], d);
for (j = 0; j < 3; j++) {
if (d[j] > 180) {
d[j] -= 360;
} else if (d[j] < -180) {
d[j] += 360;
}
}
VectorMultAdd (cl.frameViewAngles[1], frac, d, cl.viewstate.angles);
}
bobjrotate = anglemod (100 * cl.time);
// start on the entity after the world
for (i = 1; i < cl.num_entities; i++) {
new = &nq_entstates.frame[0 + cl.frameIndex][i];
old = &nq_entstates.frame[1 - cl.frameIndex][i];
ent = &cl_entities[i];
renderer = &ent->renderer;
animation = &ent->animation;
// if the object wasn't included in the last packet, remove it
entvalid = cl_msgtime[i] == cl.mtime[0];
if (entvalid && !new->modelindex) {
CL_TransformEntity (ent, new->scale / 16.0, new->angles,
new->origin);
entvalid = 0;
}
if (!entvalid) {
renderer->model = NULL;
animation->pose1 = animation->pose2 = -1;
if (ent->visibility.efrag) {
r_funcs->R_RemoveEfrags (ent); // just became empty
}
continue;
}
if (cl_forcelink[i])
*old = *new;
if (cl_forcelink[i] || new->modelindex != old->modelindex) {
old->modelindex = new->modelindex;
set_entity_model (ent, new->modelindex);
}
animation->frame = new->frame;
if (cl_forcelink[i] || new->colormap != old->colormap) {
old->colormap = new->colormap;
renderer->skin = mod_funcs->Skin_SetColormap (renderer->skin,
new->colormap);
}
if (cl_forcelink[i] || new->skinnum != old->skinnum) {
old->skinnum = new->skinnum;
renderer->skinnum = new->skinnum;
if (i <= cl.maxclients) {
renderer->skin = mod_funcs->Skin_SetColormap (renderer->skin,
i);
mod_funcs->Skin_SetTranslation (i, cl.players[i - 1].topcolor,
cl.players[i - 1].bottomcolor);
}
}
VectorCopy (ent_colormod[new->colormod], renderer->colormod);
renderer->colormod[3] = ENTALPHA_DECODE (new->alpha);
model_flags = 0;
if (renderer->model) {
model_flags = renderer->model->flags;
}
if (cl_forcelink[i]) {
// The entity was not updated in the last message so move to the
// final spot
animation->pose1 = animation->pose2 = -1;
CL_TransformEntity (ent, new->scale / 16.0, new->angles,
new->origin);
if (i != cl.viewentity || chase_active->int_val) {
if (ent->visibility.efrag) {
r_funcs->R_RemoveEfrags (ent);
}
r_funcs->R_AddEfrags (&cl.worldmodel->brush, ent);
}
ent->old_origin = new->origin;
} else {
vec4f_t delta = new->origin - old->origin;
f = frac;
ent->old_origin = Transform_GetWorldPosition (ent->transform);
// If the delta is large, assume a teleport and don't lerp
if (fabs (delta[0]) > 100 || fabs (delta[1] > 100)
|| fabs (delta[2]) > 100) {
// assume a teleportation, not a motion
CL_TransformEntity (ent, new->scale / 16.0, new->angles,
new->origin);
animation->pose1 = animation->pose2 = -1;
} else {
// interpolate the origin and angles
vec3_t angles, d;
vec4f_t origin = old->origin + f * delta;
if (!(model_flags & EF_ROTATE)) {
VectorSubtract (new->angles, old->angles, d);
for (j = 0; j < 3; j++) {
if (d[j] > 180)
d[j] -= 360;
else if (d[j] < -180)
d[j] += 360;
}
VectorMultAdd (old->angles, f, d, angles);
}
CL_TransformEntity (ent, new->scale / 16.0, angles, origin);
}
if (i != cl.viewentity || chase_active->int_val) {
if (ent->visibility.efrag) {
vec4f_t org
= Transform_GetWorldPosition (ent->transform);
if (!VectorCompare (org, ent->old_origin)) {//FIXME
r_funcs->R_RemoveEfrags (ent);
r_funcs->R_AddEfrags (&cl.worldmodel->brush, ent);
}
} else {
r_funcs->R_AddEfrags (&cl.worldmodel->brush, ent);
}
}
}
// rotate binary objects locally
if (model_flags & EF_ROTATE) {
vec3_t angles;
VectorCopy (new->angles, angles);
angles[YAW] = bobjrotate;
CL_TransformEntity (ent, new->scale / 16.0, angles, new->origin);
}
CL_EntityEffects (i, ent, new, cl.time);
vec4f_t org = Transform_GetWorldPosition (ent->transform);
CL_NewDlight (i, org, new->effects, new->glow_size,
new->glow_color, cl.time);
if (VectorDistance_fast (old->origin, org) > (256 * 256)) {
old->origin = org;
}
if (model_flags & ~EF_ROTATE)
CL_ModelEffects (ent, i, new->glow_color, cl.time);
cl_forcelink[i] = false;
}
cl.viewstate.origin
= Transform_GetWorldPosition (cl_entities[cl.viewentity].transform);
}
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