//Mutators
public void fixCenterAndRadius()
{
//Calculate the centroid
/* We plan to divide by vertCount, so don't allow it to be zero. */
if (vertCount() == 0)
{
return;
}
cVector3 centroid = new cVector3(); //Default constuctor starts at zeroVector.
foreach (cVector3 v in _vectorvert)
{
centroid.addassign(_vectorvert.ElementAt());
}
centroid.divassign(vertCount()); // We already made sure this divisor isn't zero.
//Move the centroid to the origin
foreach (cVector3 v in _vectorvert)
{
_vectorvert.ElementAt().subassign(centroid);
}
//Fix Radius as furthest vertex from the origin.
float distance = 0.0f; //Start with this and look for the biggest one.
float testdistance;
foreach (cVector3 v in _vectorvert)
{
testdistance = v.Magnitude;
if (testdistance > distance)
{
distance = testdistance;
}
}
_radius = distance; //_radius is a raw number.
_fixConvex();
}
public cDistanceAndDirection distanceAndDirection(cCritter pa, cCritter pb)
{
cVector3 dir = pb.Position.sub(pa.Position);
float distance = dir.Magnitude;
if (distance > 0.00001f)
{
dir.divassign(distance);
}
else
{
dir = new cVector3(1.0f, 0.0f); //default unit vector
}
return(new cDistanceAndDirection(distance, dir));
}