/*
=================
CL_PredictMovement
Sets cl.predicted_origin and cl.predicted_angles
=================
*/
void CL_PredictMovement( void )
{
int frame = 1;
int ack, outgoing_command;
int current_command;
int current_command_mod;
cl_entity_t *player, *viewent;
clientdata_t *cd;
if( cls.state != ca_active ) return;
if( cls.demoplayback && cl.refdef.cmd != NULL )
{
// restore viewangles from cmd.angles
VectorCopy( cl.refdef.cmd->viewangles, cl.refdef.cl_viewangles );
}
if( cl.refdef.paused || cls.key_dest == key_menu ) return;
player = CL_GetLocalPlayer ();
viewent = CL_GetEntityByIndex( cl.refdef.viewentity );
cd = &cl.frame.local.client;
// unpredicted pure angled values converted into axis
AngleVectors( cl.refdef.cl_viewangles, cl.refdef.forward, cl.refdef.right, cl.refdef.up );
if( !CL_IsPredicted( ))
{
// run commands even if client predicting is disabled - client expected it
clgame.pmove->runfuncs = true;
CL_PostRunCmd( cl.refdef.cmd, cls.lastoutgoingcommand );
return;
}
ack = cls.netchan.incoming_acknowledged;
outgoing_command = cls.netchan.outgoing_sequence;
ASSERT( cl.refdef.cmd != NULL );
// setup initial pmove state
CL_SetupPMove( clgame.pmove, cd, &player->curstate, cl.refdef.cmd );
clgame.pmove->runfuncs = false;
while( 1 )
{
// we've run too far forward
if( frame >= CL_UPDATE_BACKUP - 1 )
break;
// Incoming_acknowledged is the last usercmd the server acknowledged having acted upon
current_command = ack + frame;
current_command_mod = current_command & CL_UPDATE_MASK;
// we've caught up to the current command.
if( current_command >= outgoing_command )
break;
clgame.pmove->cmd = cl.cmds[current_command_mod];
// motor!
clgame.dllFuncs.pfnPlayerMove( clgame.pmove, false ); // run frames
clgame.pmove->runfuncs = ( current_command > outgoing_command - 1 ) ? true : false;
frame++;
}
CL_PostRunCmd( cl.refdef.cmd, frame );
// copy results out for rendering
VectorCopy( clgame.pmove->view_ofs, cl.predicted_viewofs );
VectorCopy( clgame.pmove->origin, cl.predicted_origin );
VectorCopy( clgame.pmove->velocity, cl.predicted_velocity );
}
/*
=================
CL_PredictMovement
Sets cl.predicted_origin and cl.predicted_angles
=================
*/
void CL_PredictMovement()
{
int frame;
int ack, outgoing_command;
int current_command;
int current_command_mod;
cl_entity_t *player, *viewent;
clientdata_t *cd;
if( cls.state != ca_active )
return;
if( cls.demoplayback && cl.refdef.cmd != NULL )
VectorCopy( cl.refdef.cmd->viewangles, cl.refdef.cl_viewangles ); // restore viewangles from cmd.angles
if(cl.refdef.paused /*|| cls.key_dest == key_menu*/)
//return;
player = CL_GetLocalPlayer ();
viewent = CL_GetEntityByIndex( cl.refdef.viewentity );
cd = &cl.frame.local.client;
// unpredicted pure angled values converted into axis
AngleVectors( cl.refdef.cl_viewangles, cl.refdef.forward, cl.refdef.right, cl.refdef.up );
if( !CL_IsPredicted( ))
{
// run commands even if client predicting is disabled - client expect it
clgame.pmove->runfuncs = true;
CL_PostRunCmd( cl.refdef.cmd, cls.lastoutgoingcommand );
return;
};
ack = cls.netchan.incoming_acknowledged;
outgoing_command = cls.netchan.outgoing_sequence;
// if we are too far out of date, just freeze
if(outgoing_command - ack >= CL_UPDATE_BACKUP)
{
//if(cl_showmiss->value)
//Com_Printf ("exceeded CL_UPDATE_BACKUP\n");
return;
};
ASSERT( cl.refdef.cmd != NULL );
// setup initial pmove state
CL_SetupPMove( clgame.pmove, cd, &player->curstate, cl.refdef.cmd );
clgame.pmove->runfuncs = false;
frame = 0;
while(++ack < outgoing_command)
{
// we've run too far forward
//if( frame >= CL_UPDATE_BACKUP - 1 )
// break;
frame = ack & (CL_UPDATE_BACKUP - 1);
// Incoming_acknowledged is the last usercmd the server acknowledged having acted upon
current_command = ack + frame;
current_command_mod = current_command & CL_UPDATE_MASK;
// we've caught up to the current command
// this was the most up to date command
if(current_command >= outgoing_command)
break;
clgame.pmove->cmd = cl.cmds[current_command_mod];
// Call the client dll player movement function (and it will call the PM_Move())
clgame.dllFuncs.pfnPlayerMove(clgame.pmove, false); // run frames
clgame.pmove->runfuncs = ( current_command > outgoing_command - 1 ) ? true : false; // Prevent to play sounds/etc more that once
frame++;
};
CL_PostRunCmd( cl.refdef.cmd, cls.lastoutgoingcommand );
// copy results out for rendering
VectorCopy( clgame.pmove->view_ofs, cl.predicted_viewofs );
VectorCopy( clgame.pmove->origin, cl.predicted_origin );
VectorCopy( clgame.pmove->velocity, cl.predicted_velocity );
};
