/*
=============
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_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 float pfnTraceModel( physent_t *pe, float *start, float *end, trace_t *trace )
{
int old_usehull;
vec3_t start_l, end_l;
vec3_t offset, temp;
qboolean rotated;
matrix4x4 matrix;
hull_t *hull;
old_usehull = clgame.pmove->usehull;
clgame.pmove->usehull = 2;
hull = PM_HullForBsp( pe, clgame.pmove, offset );
clgame.pmove->usehull = old_usehull;
if( pe->solid == SOLID_BSP && !VectorIsNull( pe->angles ))
rotated = true;
else rotated = false;
if( rotated )
{
Matrix4x4_CreateFromEntity( matrix, pe->angles, offset, 1.0f );
Matrix4x4_VectorITransform( matrix, start, start_l );
Matrix4x4_VectorITransform( matrix, end, end_l );
}
else
{
VectorSubtract( start, offset, start_l );
VectorSubtract( end, offset, end_l );
}
SV_RecursiveHullCheck( hull, hull->firstclipnode, 0, 1, start_l, end_l, trace );
trace->ent = NULL;
if( rotated )
{
VectorCopy( trace->plane.normal, temp );
Matrix4x4_TransformPositivePlane( matrix, temp, trace->plane.dist, trace->plane.normal, &trace->plane.dist );
}
VectorLerp( start, trace->fraction, end, trace->endpos );
return trace->fraction;
}
static hull_t *pfnHullForBsp( physent_t *pe, float *offset )
{
return PM_HullForBsp( pe, clgame.pmove, offset );
}