/*
* G_PointContents
* returns the CONTENTS_* value from the world at the given point.
* Quake 2 extends this to also check entities, to allow moving liquids
*/
static int GClip_PointContents( vec3_t p, int timeDelta )
{
c4clipedict_t *clipEnt;
int touch[MAX_EDICTS];
int i, num;
int contents, c2;
struct cmodel_s *cmodel;
float *angles;
// get base contents from world
contents = trap_CM_TransformedPointContents( p, NULL, NULL, NULL );
// or in contents from all the other entities
num = GClip_AreaEdicts( p, p, touch, MAX_EDICTS, AREA_SOLID, timeDelta );
for( i = 0; i < num; i++ )
{
clipEnt = GClip_GetClipEdictForDeltaTime( touch[i], timeDelta );
// might intersect, so do an exact clip
cmodel = GClip_CollisionModelForEntity( &clipEnt->s, &clipEnt->r );
if( !ISBRUSHMODEL( clipEnt->s.modelindex ) )
angles = vec3_origin; // boxes don't rotate
else
angles = clipEnt->s.angles;
c2 = trap_CM_TransformedPointContents( p, cmodel, clipEnt->s.origin, clipEnt->s.angles );
contents |= c2;
}
return contents;
}
/*
* GClip_ClipMoveToEntities
*/
/*static*/ void GClip_ClipMoveToEntities( moveclip_t *clip, int timeDelta )
{
int i, num;
c4clipedict_t *touch;
int touchlist[MAX_EDICTS];
trace_t trace;
struct cmodel_s *cmodel;
float *angles;
num = GClip_AreaEdicts( clip->boxmins, clip->boxmaxs, touchlist, MAX_EDICTS, AREA_SOLID, timeDelta );
// be careful, it is possible to have an entity in this
// list removed before we get to it (killtriggered)
for( i = 0; i < num; i++ )
{
touch = GClip_GetClipEdictForDeltaTime( touchlist[i], timeDelta );
if( clip->passent >= 0 )
{
// when they are offseted in time, they can be a different pointer but be the same entity
if( touch->s.number == clip->passent )
continue;
if( touch->r.owner && ( touch->r.owner->s.number == clip->passent ) )
continue;
if( game.edicts[clip->passent].r.owner
&& ( game.edicts[clip->passent].r.owner->s.number == touch->s.number ) )
continue;
// wsw : jal : never clipmove against SVF_PROJECTILE entities
if( touch->r.svflags & SVF_PROJECTILE )
continue;
}
if( ( touch->r.svflags & SVF_CORPSE ) && !( clip->contentmask & CONTENTS_CORPSE ) )
continue;
// might intersect, so do an exact clip
cmodel = GClip_CollisionModelForEntity( &touch->s, &touch->r );
if( ISBRUSHMODEL( touch->s.modelindex ) )
angles = touch->s.angles;
else
angles = vec3_origin; // boxes don't rotate
trap_CM_TransformedBoxTrace( &trace, clip->start, clip->end,
clip->mins, clip->maxs, cmodel, clip->contentmask,
touch->s.origin, angles );
if( trace.allsolid || trace.fraction < clip->trace->fraction )
{
trace.ent = touch->s.number;
*( clip->trace ) = trace;
}
else if( trace.startsolid )
clip->trace->startsolid = qtrue;
if( clip->trace->allsolid )
return;
}
}
