/*
=============
CL_TruePointContents
=============
*/
int CL_TruePointContents( const vec3_t p )
{
int i, contents;
int oldhull;
hull_t *hull;
vec3_t test, offset;
physent_t *pe;
// sanity check
if( !p )
return CONTENTS_NONE;
oldhull = clgame.pmove->usehull;
// get base contents from world
contents = PM_HullPointContents( &cl.worldmodel->hulls[0], 0, p );
for( i = 0; i < clgame.pmove->nummoveent; i++ )
{
pe = &clgame.pmove->moveents[i];
if( pe->solid != SOLID_NOT ) // disabled ?
continue;
// only brushes can have special contents
if( !pe->model || pe->model->type != mod_brush )
continue;
// check water brushes accuracy
clgame.pmove->usehull = 2;
hull = PM_HullForBsp( pe, clgame.pmove, offset );
clgame.pmove->usehull = oldhull;
// offset the test point appropriately for this hull.
VectorSubtract( p, offset, test );
if( (pe->model->flags & MODEL_HAS_ORIGIN) && !VectorIsNull( pe->angles ))
{
matrix4x4 matrix;
Matrix4x4_CreateFromEntity( matrix, pe->angles, offset, 1.0f );
Matrix4x4_VectorITransform( matrix, p, test );
};
// test hull for intersection with this model
if( PM_HullPointContents( hull, hull->firstclipnode, test ) == CONTENTS_EMPTY )
continue;
// compare contents ranking
if( RankForContents( pe->skin ) > RankForContents( contents ))
contents = pe->skin; // new content has more priority
};
return contents;
}
/*
=================
CL_NudgePosition
If pmove.origin is in a solid position,
try nudging slightly on all axis to
allow for the cut precision of the net coordinates
=================
*/
void CL_NudgePosition (void)
{
vec3_t base;
int x, y;
if (PM_HullPointContents (&cl.model_precache[1]->hulls[1], 0, pmove.origin) == CONTENTS_EMPTY)
return;
VectorCopy (pmove.origin, base);
for (x=-1 ; x<=1 ; x++)
{
for (y=-1 ; y<=1 ; y++)
{
pmove.origin[0] = base[0] + x * 1.0/8;
pmove.origin[1] = base[1] + y * 1.0/8;
if (PM_HullPointContents (&cl.model_precache[1]->hulls[1], 0, pmove.origin) == CONTENTS_EMPTY)
return;
}
}
Con_DPrintf ("CL_NudgePosition: stuck\n");
}
/*
=============
CL_WaterEntity
=============
*/
int CL_WaterEntity( const float *rgflPos )
{
physent_t *pe;
hull_t *hull;
vec3_t test, offset;
int i, oldhull;
if( !rgflPos )
return -1;
oldhull = clgame.pmove->usehull;
for( i = 0; i < clgame.pmove->nummoveent; i++ )
{
pe = &clgame.pmove->moveents[i];
if( pe->solid != SOLID_NOT ) // disabled ?
continue;
// only brushes can have special contents
if( !pe->model || pe->model->type != mod_brush )
continue;
// check water brushes accuracy
clgame.pmove->usehull = 2;
hull = PM_HullForBsp( pe, clgame.pmove, offset );
clgame.pmove->usehull = oldhull;
// offset the test point appropriately for this hull.
VectorSubtract( rgflPos, offset, test );
if( (pe->model->flags & MODEL_HAS_ORIGIN) && !VectorIsNull( pe->angles ))
{
matrix4x4 matrix;
Matrix4x4_CreateFromEntity( matrix, pe->angles, offset, 1.0f );
Matrix4x4_VectorITransform( matrix, rgflPos, test );
};
// test hull for intersection with this model
if( PM_HullPointContents( hull, hull->firstclipnode, test ) == CONTENTS_EMPTY )
continue;
// found water entity
return pe->info;
}
return -1;
}
static int pfnHullPointContents( struct hull_s *hull, int num, float *p )
{
return PM_HullPointContents( hull, num, p );
}