inline bool TriangleInRegion(const Triangle2DF tri, const CvSubdiv2D* subdiv)
{
return
PointInRegion(tri.V0, subdiv)
&& PointInRegion(tri.V1, subdiv)
&& PointInRegion(tri.V2, subdiv);
}
bool TriangleInRegion (Triangle2DF tri, CvSubdiv2D* subdiv)
{
return
PointInRegion(tri.V0, subdiv)
&& PointInRegion(tri.V1, subdiv)
&& PointInRegion(tri.V2, subdiv);
}
void PlanarSubdivisionGetSubdiv2DPoints(CvSubdiv2D* subdiv, CvPoint2D32f* points, CvSubdiv2DEdge* edges, int* pointCount)
{
UniquePointSet pointSet;
CvSet* subdivEdges = subdiv->edges;
CvPoint2D32f* currentPoint = points;
CvSubdiv2DEdge* currentEdge = edges;
CvSeqReader reader;
cvStartReadSeq((CvSeq*) subdivEdges, &reader);
schar* start = reader.ptr;
while(CV_IS_SET_ELEM(reader.ptr))
{
CvQuadEdge2D* qEdge = (CvQuadEdge2D*)reader.ptr;
if (qEdge && CV_IS_SET_ELEM(qEdge))
{
CvSubdiv2DEdge e = (CvSubdiv2DEdge) qEdge;
if (e && CV_IS_SET_ELEM(e))
{
CvSubdiv2DPoint* p1 = cvSubdiv2DEdgeOrg(e);
if (p1 &&
pointSet.insert(p1->pt).second &&
PointInRegion(p1->pt, subdiv))
{
*currentPoint++ = p1->pt;
*currentEdge++ = cvSubdiv2DRotateEdge(e, 1);
}
CvSubdiv2DPoint* p2 = cvSubdiv2DEdgeDst(e);
if(p2 &&
pointSet.insert(p2->pt).second &&
PointInRegion(p2->pt, subdiv))
{
*currentPoint++ = p2->pt;
*currentEdge++ = cvSubdiv2DRotateEdge(e, 3);
}
}
}
CV_NEXT_SEQ_ELEM(subdivEdges->elem_size, reader);
// prevent infinite loop
if(reader.ptr == start)
break;
}
*pointCount = currentPoint - points;
}
bool CombatSetupWnd::ValidPlacement(Ship* ship, const Ogre::Vector3& point) const {
bool retval = false;
std::size_t i = GroupIndexOfShip(m_setup_groups, ship);
if (i != m_setup_groups.size()) {
const CombatSetupGroup& group = m_setup_groups[i];
retval = !group.m_allow;
for (std::size_t j = 0; j < group.m_regions.size(); ++j) {
double point_d[2] = { point.x, point.y };
if (PointInRegion(point_d, group.m_regions[j])) {
retval = !retval;
break;
}
}
}
if (retval) {
// verify that this placement is not too near to other ships
for (std::map<int, Ogre::SceneNode*>::const_iterator it = m_placed_nodes.begin();
it != m_placed_nodes.end();
++it) {
Ship* this_ship = *Ogre::any_cast<Ship*>(&it->second->getUserAny());
if (this_ship == ship)
continue;
Ogre::SceneNode::ObjectIterator iterator = it->second->getAttachedObjectIterator();
assert(iterator.hasMoreElements());
const Ogre::Sphere& sphere =
boost::polymorphic_downcast<Ogre::Entity*>(iterator.getNext())->getWorldBoundingSphere();
if (sphere.intersects(point)) {
retval = false;
break;
}
}
}
return retval;
}
bool Triangle::ContainsPoint(const glm::vec2 &point)
{
return PointInRegion(a, b, c, point) &&
PointInRegion(a, c, b, point) &&
PointInRegion(b, c, a, point);
}
