void CL_PredictUsercmd (player_state_t *from, player_state_t *to, usercmd_t *u) {
// split up very long moves
if (u->msec > 50) {
player_state_t temp;
usercmd_t split;
split = *u;
split.msec /= 2;
CL_PredictUsercmd (from, &temp, &split);
CL_PredictUsercmd (&temp, to, &split);
return;
}
VectorCopy (from->origin, pmove.origin);
VectorCopy (u->angles, pmove.angles);
VectorCopy (from->velocity, pmove.velocity);
pmove.jump_msec = (cl.z_ext & Z_EXT_PM_TYPE) ? 0 : from->jump_msec;
pmove.jump_held = from->jump_held;
pmove.waterjumptime = from->waterjumptime;
pmove.pm_type = from->pm_type;
pmove.onground = from->onground;
pmove.cmd = *u;
#ifdef JSS_CAM
if (cam_lockdir.value) {
VectorCopy (saved_angles, pmove.cmd.angles);
VectorCopy (saved_angles, pmove.angles);
}
else
VectorCopy (pmove.cmd.angles, saved_angles);
#endif
movevars.entgravity = cl.entgravity;
movevars.maxspeed = cl.maxspeed;
movevars.bunnyspeedcap = cl.bunnyspeedcap;
PM_PlayerMove ();
to->waterjumptime = pmove.waterjumptime;
to->pm_type = pmove.pm_type;
to->jump_held = pmove.jump_held;
to->jump_msec = pmove.jump_msec;
pmove.jump_msec = 0;
VectorCopy (pmove.origin, to->origin);
VectorCopy (pmove.angles, to->viewangles);
VectorCopy (pmove.velocity, to->velocity);
to->onground = pmove.onground;
to->weaponframe = from->weaponframe;
}
/*
===
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)
{
int j;
player_state_t *state;
player_state_t exact;
double playertime;
int msec;
frame_t *frame;
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->modelindex)
continue;
pplayer->active = true;
pplayer->flags = state->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].origin,
pplayer->origin);
} else {
// only predict half the move to minimize overruns
msec = 500*(playertime - state->state_time);
if (msec <= 0 ||
(!cl_predict_players.value && !cl_predict_players2.value) ||
!dopred)
{
VectorCopy (state->origin, pplayer->origin);
//Con_DPrintf ("nopredict\n");
}
else
{
// predict players movement
if (msec > 255)
msec = 255;
state->command.msec = msec;
//Con_DPrintf ("predict: %i\n", msec);
CL_PredictUsercmd (state, &exact, &state->command, false);
VectorCopy (exact.origin, pplayer->origin);
}
}
}
}
/*
==============
CL_PredictUsercmd
==============
*/
void CL_PredictUsercmd (player_state_t *from, player_state_t *to, usercmd_t *u)
{
// split up very long moves
if (u->msec > 50)
{
player_state_t temp;
usercmd_t split;
split = *u;
split.msec /= 2;
CL_PredictUsercmd (from, &temp, &split);
CL_PredictUsercmd (&temp, to, &split);
return;
}
VectorCopy (from->origin, cl.pmove.origin);
// VectorCopy (from->viewangles, pmove.angles);
VectorCopy (u->angles, cl.pmove.angles);
VectorCopy (from->velocity, cl.pmove.velocity);
if (cl.z_ext & Z_EXT_PM_TYPE)
cl.pmove.jump_msec = 0;
else
cl.pmove.jump_msec = from->jump_msec;
cl.pmove.jump_held = from->jump_held;
cl.pmove.waterjumptime = from->waterjumptime;
cl.pmove.pm_type = from->pm_type;
cl.pmove.onground = from->onground;
cl.pmove.cmd = *u;
PM_PlayerMove (&cl.pmove, &cl.movevars);
to->waterjumptime = cl.pmove.waterjumptime;
to->pm_type = cl.pmove.pm_type;
to->jump_held = cl.pmove.jump_held;
to->jump_msec = cl.pmove.jump_msec;
cl.pmove.jump_msec = 0;
VectorCopy (cl.pmove.origin, to->origin);
VectorCopy (cl.pmove.angles, to->viewangles);
VectorCopy (cl.pmove.velocity, to->velocity);
to->onground = cl.pmove.onground;
to->weaponframe = from->weaponframe;
}
/*
==============
CL_PredictUsercmd
==============
*/
void
CL_PredictUsercmd(player_state_t *from, player_state_t *to, usercmd_t *u,
qboolean spectator)
{
// split up very long moves
if (u->msec > 50) {
player_state_t temp;
usercmd_t split;
split = *u;
split.msec /= 2;
CL_PredictUsercmd(from, &temp, &split, spectator);
CL_PredictUsercmd(&temp, to, &split, spectator);
return;
}
VectorCopy(from->origin, pmove.origin);
// VectorCopy (from->viewangles, pmove.angles);
VectorCopy(u->angles, pmove.angles);
VectorCopy(from->velocity, pmove.velocity);
pmove.oldbuttons = from->oldbuttons;
pmove.waterjumptime = from->waterjumptime;
pmove.dead = cl.stats[STAT_HEALTH] <= 0;
pmove.spectator = spectator;
pmove.cmd = *u;
PlayerMove();
//for (i=0 ; i<3 ; i++)
//pmove.origin[i] = ((int)(pmove.origin[i]*8))*0.125;
to->waterjumptime = pmove.waterjumptime;
to->oldbuttons = pmove.cmd.buttons;
VectorCopy(pmove.origin, to->origin);
VectorCopy(pmove.angles, to->viewangles);
VectorCopy(pmove.velocity, to->velocity);
to->onground = onground;
to->weaponframe = from->weaponframe;
}
/*
==============
CL_PredictMove
==============
*/
void
CL_PredictMove(void)
{
int i;
float f;
frame_t *from, *to = NULL;
int oldphysent;
if (cl_pushlatency.value > 0)
Cvar_Set("pushlatency", "0");
if (cl.paused)
return;
cl.time = realtime - cls.latency - cl_pushlatency.value * 0.001;
if (cl.time > realtime)
cl.time = realtime;
if (cl.intermission)
return;
if (!cl.validsequence)
return;
if (cls.netchan.outgoing_sequence - cls.netchan.incoming_sequence >=
UPDATE_BACKUP - 1)
return;
VectorCopy(cl.viewangles, cl.simangles);
// this is the last frame received from the server
from = &cl.frames[cls.netchan.incoming_sequence & UPDATE_MASK];
// we can now render a frame
if (cls.state == ca_onserver) { // first update is the final signon stage
char text[1024];
cls.state = ca_active;
sprintf(text, "QuakeWorld: %s", cls.servername);
#ifdef _WIN32
SetWindowText(mainwindow, text);
#endif
}
if (cl_nopred.value) {
VectorCopy(from->playerstate[cl.playernum].velocity, cl.simvel);
VectorCopy(from->playerstate[cl.playernum].origin, cl.simorg);
return;
}
// predict forward until cl.time <= to->senttime
oldphysent = pmove.numphysent;
CL_SetSolidPlayers(cl.playernum);
// to = &cl.frames[cls.netchan.incoming_sequence & UPDATE_MASK];
for (i = 1; i < UPDATE_BACKUP - 1 && cls.netchan.incoming_sequence + i <
cls.netchan.outgoing_sequence; i++) {
to = &cl.frames[(cls.netchan.incoming_sequence + i) & UPDATE_MASK];
CL_PredictUsercmd(&from->playerstate[cl.playernum]
, &to->playerstate[cl.playernum], &to->cmd,
cl.spectator);
if (to->senttime >= cl.time)
break;
from = to;
}
pmove.numphysent = oldphysent;
if (i == UPDATE_BACKUP - 1 || !to)
return; // net hasn't deliver packets in a long time...
// now interpolate some fraction of the final frame
if (to->senttime == from->senttime)
f = 0;
else {
f = (cl.time - from->senttime) / (to->senttime - from->senttime);
if (f < 0)
f = 0;
if (f > 1)
f = 1;
}
for (i = 0; i < 3; i++)
if (fabs(from->playerstate[cl.playernum].origin[i] - to->playerstate[cl.playernum].origin[i]) > 128) { // teleported, so don't lerp
VectorCopy(to->playerstate[cl.playernum].velocity, cl.simvel);
VectorCopy(to->playerstate[cl.playernum].origin, cl.simorg);
return;
}
for (i = 0; i < 3; i++) {
cl.simorg[i] = from->playerstate[cl.playernum].origin[i]
+ f * (to->playerstate[cl.playernum].origin[i] -
from->playerstate[cl.playernum].origin[i]);
cl.simvel[i] = from->playerstate[cl.playernum].velocity[i]
+ f * (to->playerstate[cl.playernum].velocity[i] -
from->playerstate[cl.playernum].velocity[i]);
}
}
/*
=============
CL_LinkPlayers
Create visible entities in the correct position
for all current players
=============
*/
void CL_LinkPlayers (void)
{
int j;
player_info_t *info;
player_state_t *state;
player_state_t exact;
double playertime;
entity_t *ent;
int msec;
frame_t *frame;
int oldphysent;
playertime = realtime - cls.latency + 0.02;
if (playertime > realtime)
playertime = realtime;
frame = &cl.frames[cl.parsecount&UPDATE_MASK];
for (j=0, info=cl.players, state=frame->playerstate ; j < MAX_CLIENTS
; j++, info++, state++)
{
if (state->messagenum != cl.parsecount)
continue; // not present this frame
// spawn light flashes, even ones coming from invisible objects
// #ifdef GLQUAKE
// if (!gl_flashblend.value || j != cl.playernum) {
// #endif
if ((state->effects & (EF_BLUE | EF_RED)) == (EF_BLUE | EF_RED))
CL_NewDlight (j, state->origin[0], state->origin[1], state->origin[2], 200 + (rand()&31), 0.1, 3);
else if (state->effects & EF_BLUE)
CL_NewDlight (j, state->origin[0], state->origin[1], state->origin[2], 200 + (rand()&31), 0.1, 1);
else if (state->effects & EF_RED)
CL_NewDlight (j, state->origin[0], state->origin[1], state->origin[2], 200 + (rand()&31), 0.1, 2);
else if (state->effects & EF_BRIGHTLIGHT)
CL_NewDlight (j, state->origin[0], state->origin[1], state->origin[2] + 16, 400 + (rand()&31), 0.1, 0);
else if (state->effects & EF_DIMLIGHT)
CL_NewDlight (j, state->origin[0], state->origin[1], state->origin[2], 200 + (rand()&31), 0.1, 0);
// #ifdef GLQUAKE
// }
// #endif
// the player object never gets added
if (j == cl.playernum)
continue;
if (!state->modelindex)
continue;
if (!Cam_DrawPlayer(j))
continue;
// grab an entity to fill in
if (cl_numvisedicts == MAX_VISEDICTS)
break; // object list is full
ent = &cl_visedicts[cl_numvisedicts];
cl_numvisedicts++;
ent->keynum = 0;
ent->model = cl.model_precache[state->modelindex];
ent->skinnum = state->skinnum;
ent->frame = state->frame;
ent->colormap = info->translations;
if (state->modelindex == cl_playerindex)
ent->scoreboard = info; // use custom skin
else
ent->scoreboard = NULL;
//
// angles
//
ent->angles[PITCH] = -state->viewangles[PITCH]/3;
ent->angles[YAW] = state->viewangles[YAW];
ent->angles[ROLL] = 0;
ent->angles[ROLL] = V_CalcRoll (ent->angles, state->velocity)*4;
// only predict half the move to minimize overruns
msec = 500*(playertime - state->state_time);
if (msec <= 0 || (!cl_predict_players.value && !cl_predict_players2.value))
{
VectorCopy (state->origin, ent->origin);
//Con_DPrintf ("nopredict\n");
}
else
{
// predict players movement
if (msec > 255)
msec = 255;
state->command.msec = msec;
//Con_DPrintf ("predict: %i\n", msec);
oldphysent = pmove.numphysent;
CL_SetSolidPlayers (j);
CL_PredictUsercmd (state, &exact, &state->command, false);
pmove.numphysent = oldphysent;
VectorCopy (exact.origin, ent->origin);
}
if (state->effects & EF_FLAG1)
CL_AddFlagModels (ent, 0);
else if (state->effects & EF_FLAG2)
CL_AddFlagModels (ent, 1);
}
}