q3rally/engine/code/game/g_rally_observer_cams.c
2011-03-08 09:07:05 +00:00

147 lines
4 KiB
C

/*
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
Copyright (C) 2002-2009 Q3Rally Team (Per Thormann - perle@q3rally.com)
This file is part of q3rally source code.
q3rally source code 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.
q3rally source code 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 q3rally; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
#include "g_local.h"
void SP_info_observer_spot( gentity_t *ent ){
G_SetOrigin(ent, ent->s.origin);
if( ent->target )
{
ent->spawnflags |= OBSERVERCAM_FIXED;
}
}
gentity_t *FindBestObserverSpot( gentity_t *self, gentity_t *target, vec3_t spot, vec3_t angles){
gentity_t *ent;
trace_t tr;
vec3_t delta;
static vec3_t mins = { -4, -4, -4 };
static vec3_t maxs = { 4, 4, 4 };
float dist, bestDist;
gentity_t *foundSpot;
foundSpot = NULL;
dist = 0;
bestDist = 0;
ent = NULL;
while ( (ent = G_Find (ent, FOFS(classname), "info_observer_spot")) != NULL )
{
// if ( !trap_InPVS( ent->s.origin, target->s.origin) ) continue;
// Com_Printf("Found an observer spot in PVS\n");
// VectorCopy(ent->s.origin, spot);
// foundSpot = ent;
// return foundSpot;
trap_Trace(&tr, ent->r.currentOrigin, mins, maxs, target->client->ps.origin, target->s.number, CONTENTS_SOLID);
if (tr.startsolid || tr.allsolid || tr.fraction < 1.0) continue;
VectorSubtract(target->s.origin, ent->s.origin, delta);
dist = VectorNormalize(delta);
// check for spot with locked angles
if (ent->spawnflags & OBSERVERCAM_FIXED)
{
vec3_t forward;
AngleVectors(ent->s.angles, forward, NULL, NULL);
if (DotProduct(delta, forward) < -0.40)
{
VectorCopy(ent->s.origin, spot);
VectorCopy(ent->s.angles, angles);
self->spotflags = ent->spawnflags;
// use this one
return ent;
}
}
if (dist < bestDist || bestDist == 0)
{
bestDist = dist;
VectorCopy(ent->s.origin, spot);
VectorCopy(ent->s.angles, angles);
// Com_Printf("Found a valid observer spot\n");
self->spotflags = ent->spawnflags;
foundSpot = ent;
}
}
return foundSpot;
}
void UpdateObserverSpot( gentity_t *ent, qboolean forceUpdate ){
vec3_t origin, angles;
trace_t tr;
int clientNum;
static vec3_t mins = { -4, -4, -4 };
static vec3_t maxs = { 4, 4, 4 };
clientNum = ent->client->sess.spectatorClient;
if ( clientNum == -1 )
clientNum = level.follow1;
else if ( clientNum == -2 )
clientNum = level.follow2;
if (clientNum < 0)
{
// ent->client->sess.spectatorState = SPECTATOR_FREE;
// G_DebugLogPrintf( "UpdateObserverSpot: drop back to free\n" );
StopFollowing( ent );
// ClientSpawn( ent );
return;
}
trap_Trace( &tr, ent->client->ps.origin, mins, maxs, level.clients[clientNum].ps.origin, ent->s.number, CONTENTS_SOLID );
if ( forceUpdate || tr.fraction < 1 )
{
if ( !FindBestObserverSpot(ent, &g_entities[clientNum], origin, angles) )
{
if (ent->updateTime + 500 < level.time){
ent->updateTime = level.time;
trap_SendServerCommand( ent - g_entities, "print \"Couldnt find valid observer spot, dropping back to follow mode.\n\"" );
ent->client->sess.spectatorState = SPECTATOR_FOLLOW;
return;
}
}
else
{
// Com_Printf( "Updating observer position" );
G_SetOrigin(ent, origin);
VectorCopy(origin, ent->client->ps.origin);
VectorCopy(angles, ent->client->ps.viewangles);
ent->updateTime = level.time;
}
}
else {
ent->updateTime = level.time;
}
}