示例#1
0
bool CheckBoundingBoxWithSphere(R3Sphere *sphere, R3Player *player) {
	R3Box bbox = player->shape->mesh->bbox;
	
	R3Point coords[8];
	
	coords[1] = bbox.Corner(0, 0, 0);
	coords[2] = bbox.Corner(0, 0, 1);
	coords[3] = bbox.Corner(0, 1, 0);
	coords[4] = bbox.Corner(0, 1, 1);
	coords[5] = bbox.Corner(1, 0, 0);
	coords[6] = bbox.Corner(1, 0, 1);
	coords[7] = bbox.Corner(1, 1, 0);
	coords[8] = bbox.Corner(1, 1, 1);

	// check if it is entirely within the sphere
	bool in = true;
	for (int i = 0; i < 8; i++) {
	  if (R3Distance(coords[i], sphere->Center()) < sphere->Radius()){
	    in = false;
	    break;
	  }
	}
	if (in) return false;

	for (int i = 0; i < 8; i++) {
		if (R3Distance(coords[i], sphere->Center()) < sphere->Radius())
			return true;
	}
	
	if (R3Distance(player->pos, sphere->Center()) < sphere->Radius())
		return true;
	return false;
}
示例#2
0
double R3SignedDistance(const R3Plane& plane, const R3Box& box)
{
  // Return signed distance from plane to box
  int ix = (plane.Normal().X() > 0) ? 0 : 1;
  int iy = (plane.Normal().Y() > 0) ? 0 : 1;
  int iz = (plane.Normal().Z() > 0) ? 0 : 1;
  double d1 = R3SignedDistance(plane, box.Corner(ix, iy, iz));
  if (d1 >= 0) return d1;
  double d2 = R3SignedDistance(plane, box.Corner(1-ix, 1-iy, 1-iz));
  if (d2 < 0) return d2;
  else return 0.0;
}
示例#3
0
文件: R3Cont.C 项目: acplus/peptalk
RNBoolean R3Contains(const R3Sphere& sphere, const R3Box& box)
{
    // Return whether sphere contains box 
    R3Vector v = box.Centroid() - sphere.Center();
    R3Point corner = box.Corner(v.Octant());
    return R3Contains(sphere, corner);
}
示例#4
0
文件: R3Cont.C 项目: acplus/peptalk
RNBoolean R3Contains(const R3Ray& ray, const R3Box& box)
{
    // Return whether ray contains box
    if (!R3Contains(ray.Line(), box)) return FALSE;
    RNOctant octant = ray.Vector().Octant();
    if (!R3Contains(ray, box.Corner(~octant & 0x7))) return FALSE;
    return TRUE;
}
示例#5
0
文件: R3Cont.C 项目: acplus/peptalk
RNBoolean R3Contains(const R3Box& box, const R3Halfspace& halfspace)
{
    // Return whether box contains halfspace
    RNOctant octant = halfspace.Normal().Octant();
    R3Point corner = box.Corner(octant);
    if (!RNIsFinite(corner.X())) return FALSE;
    if (!RNIsFinite(corner.Y())) return FALSE;
    if (!RNIsFinite(corner.Z())) return FALSE;
    RNAbort("Not Implemented");
    return FALSE;
}
示例#6
0
文件: R3Cont.C 项目: acplus/peptalk
RNBoolean R3Contains(const R3Halfspace& halfspace, const R3Box& box)
{
    // Return whether halfspace contains box 
    RNOctant octant = halfspace.Normal().Octant();
    return (R3Contains(halfspace, box.Corner(~octant & 0x7)));
}