void demoplaybackstep()
{
while(demoplayback && lastmillis>=playbacktime)
{
int len = gzgeti();
if(len<1 || len>MAXTRANS)
{
conoutf("error: huge packet during demo play (%d)", len);
stopreset();
return;
};
uchar buf[MAXTRANS];
gzread(f, buf, len);
localservertoclient(buf, len); // update game state
dynent *target = players[democlientnum];
assert(target);
int extras;
if(extras = gzget()) // read additional client side state not present in normal network stream
{
target->gunselect = gzget();
target->lastattackgun = gzget();
target->lastaction = scaletime(gzgeti());
target->gunwait = gzgeti();
target->health = gzgeti();
target->armour = gzgeti();
target->armourtype = gzget();
loopi(NUMGUNS) target->ammo[i] = gzget();
target->state = gzget();
target->lastmove = playbacktime;
if(bdamage = gzgeti()) damageblend(bdamage);
if(ddamage = gzgeti()) { gzgetv(dorig); particle_splash(3, ddamage, 1000, dorig); };
// FIXME: set more client state here
};
// insert latest copy of player into history
if(extras && (playerhistory.empty() || playerhistory.last()->lastupdate!=playbacktime))
{
dynent *d = newdynent();
*d = *target;
d->lastupdate = playbacktime;
playerhistory.add(d);
if(playerhistory.length()>20)
{
zapdynent(playerhistory[0]);
playerhistory.remove(0);
};
};
readdemotime();
};
if(demoplayback)
{
int itime = lastmillis-demodelaymsec;
loopvrev(playerhistory) if(playerhistory[i]->lastupdate<itime) // find 2 positions in history that surround interpolation time point
{
dynent *a = playerhistory[i];
dynent *b = a;
if(i+1<playerhistory.length()) b = playerhistory[i+1];
*player1 = *b;
if(a!=b) // interpolate pos & angles
{
dynent *c = b;
if(i+2<playerhistory.length()) c = playerhistory[i+2];
dynent *z = a;
if(i-1>=0) z = playerhistory[i-1];
//if(a==z || b==c) printf("* %d\n", lastmillis);
float bf = (itime-a->lastupdate)/(float)(b->lastupdate-a->lastupdate);
fixwrap(a, player1);
fixwrap(c, player1);
fixwrap(z, player1);
vdist(dist, v, z->o, c->o);
if(dist<16) // if teleport or spawn, dont't interpolate
{
catmulrom(z->o, a->o, b->o, c->o, bf, player1->o);
catmulrom(*(vec *)&z->yaw, *(vec *)&a->yaw, *(vec *)&b->yaw, *(vec *)&c->yaw, bf, *(vec *)&player1->yaw);
};
fixplayer1range();
};
break;
};
//if(player1->state!=CS_DEAD) showscores(false);
};
};
