void Entity::pick(const Rayf& ray, PickResult& pickResults) {
float dist = bounds().intersectWithRay(ray, NULL);
if (Math<float>::isnan(dist))
return;
Vec3f hitPoint = ray.pointAtDistance(dist);
EntityHit* hit = new EntityHit(*this, hitPoint, dist);
pickResults.add(hit);
}
Vec3f Grid::moveDeltaForBounds(const Model::Face& face, const BBoxf& bounds, const BBoxf& worldBounds, const Rayf& ray, const Vec3f& position) const {
const Planef dragPlane = Planef::alignedOrthogonalDragPlane(position, face.boundary().normal);
const Vec3f halfSize = bounds.size() * 0.5f;
float offsetLength = halfSize.dot(dragPlane.normal);
if (offsetLength < 0.0f)
offsetLength *= -1.0f;
const Vec3f offset = dragPlane.normal * offsetLength;
const float dist = dragPlane.intersectWithRay(ray);
const Vec3f newPos = ray.pointAtDistance(dist);
Vec3f delta = moveDeltaForPoint(bounds.center(), worldBounds, newPos - (bounds.center() - offset));
Axis::Type a = dragPlane.normal.firstComponent();
if (dragPlane.normal[a] > 0.0f) delta[a] = position[a] - bounds.min[a];
else delta[a] = position[a] - bounds.max[a];
return delta;
}
void Brush::pick(const Rayf& ray, PickResult& pickResults) {
float dist = bounds().intersectWithRay(ray, NULL);
if (Math<float>::isnan(dist))
return;
dist = Math<float>::nan();
Side* side = NULL;
for (unsigned int i = 0; i < m_geometry->sides.size() && Math<float>::isnan(dist); i++) {
side = m_geometry->sides[i];
dist = side->intersectWithRay(ray);
}
if (!Math<float>::isnan(dist)) {
assert(side != NULL);
Vec3f hitPoint = ray.pointAtDistance(dist);
FaceHit* hit = new FaceHit(*(side->face), hitPoint, dist);
pickResults.add(hit);
}
}