void CCastRay::TestModelSimple(CEntity *penModel, CModelObject &mo)
{
// get model's bounding box for current frame
FLOATaabbox3D boxModel;
mo.GetCurrentFrameBBox(boxModel);
boxModel.StretchByVector(mo.mo_Stretch);
// get center and radius of the bounding sphere in absolute space
FLOAT fSphereRadius = boxModel.Size().Length()/2.0f;
FLOAT3D vSphereCenter = boxModel.Center();
vSphereCenter*=penModel->en_mRotation;
vSphereCenter+=penModel->en_plPlacement.pl_PositionVector;
// if the ray doesn't hit the sphere
FLOAT fSphereHitDistance;
if (!RayHitsSphere(cr_vOrigin, cr_vTarget,
vSphereCenter, fSphereRadius+cr_fTestR, fSphereHitDistance) ) {
// ignore
return;
}
// if the ray hits the sphere closer than closest found hit point yet
if (fSphereHitDistance<cr_fHitDistance && fSphereHitDistance>0.0f) {
// set the current entity as new hit target
cr_fHitDistance=fSphereHitDistance;
cr_penHit = penModel;
cr_pbscBrushSector = NULL;
cr_pbpoBrushPolygon = NULL;
}
}
// check if all of the corners of entity's bounding box are influenced by current select-on-render selection
void SelectEntityOnRender(CProjection3D &prProjection, CEntity &en)
{
FLOATaabbox3D bbox;
FLOATmatrix3D mOne = FLOATmatrix3D(0.0f);
mOne.Diagonal(1.0f);
FLOATmatrix3D *pmR;
FLOAT3D vOffset;
// if this entity is model
if (en.en_RenderType==CEntity::RT_MODEL || en.en_RenderType==CEntity::RT_EDITORMODEL)
{
// get bbox of current frame
CModelObject *pmo = en.GetModelObject();
pmo->GetCurrentFrameBBox( bbox);
pmR = &en.en_mRotation;
vOffset = en.GetPlacement().pl_PositionVector;
}
// if it is ska model
else if(en.en_RenderType==CEntity::RT_SKAMODEL || en.en_RenderType==CEntity::RT_SKAEDITORMODEL)
{
en.GetModelInstance()->GetCurrentColisionBox( bbox);
pmR = &en.en_mRotation;
vOffset = en.GetPlacement().pl_PositionVector;
}
// if it is brush
else
{
// get bbox of brush's first mip
CBrush3D *pbr = en.GetBrush();
CBrushMip *pbrmip = pbr->GetFirstMip();
bbox = pbrmip->bm_boxBoundingBox;
pmR = &mOne;
vOffset = FLOAT3D( 0.0f, 0.0f, 0.0f);
}
if( IsBoundingBoxInLasso( prProjection, bbox, pmR, vOffset))
{
if( _bSelectAlternative)
{
// deselect
if (en.IsSelected(ENF_SELECTED))
{
_pselenSelectOnRender->Deselect(en);
}
}
else
{
// select
if (!en.IsSelected(ENF_SELECTED))
{
_pselenSelectOnRender->Select(en);
}
}
}
}
