public virtual bool sphere_intersects_solid_poly(Sphere checkPos, float radius, ref bool centerSolid, ref Polygon hitPoly, bool centerCheck)
{
if (!Sphere.Intersects(checkPos))
{
return(false);
}
var dist = Vector3.Dot(SplittingPlane.Normal, checkPos.Center) + SplittingPlane.D;
var reach = radius - PhysicsGlobals.EPSILON;
if (dist >= reach)
{
return(PosNode.sphere_intersects_solid_poly(checkPos, radius, ref centerSolid, ref hitPoly, centerCheck));
}
if (dist <= -reach)
{
return(NegNode.sphere_intersects_solid_poly(checkPos, radius, ref centerSolid, ref hitPoly, centerCheck));
}
if (dist <= 0.0f)
{
NegNode.sphere_intersects_solid_poly(checkPos, radius, ref centerSolid, ref hitPoly, centerCheck);
if (hitPoly != null)
{
return(centerSolid);
}
return(PosNode.sphere_intersects_solid_poly(checkPos, radius, ref centerSolid, ref hitPoly, false));
}
else
{
PosNode.sphere_intersects_solid_poly(checkPos, radius, ref centerSolid, ref hitPoly, centerCheck);
if (hitPoly != null)
{
return(centerSolid);
}
return(NegNode.sphere_intersects_solid_poly(checkPos, radius, ref centerSolid, ref hitPoly, false));
}
}
public TransitionState placement_insert(Transition transition)
{
var path = transition.SpherePath;
var validPos = new Sphere(path.LocalSpaceSphere[0]);
var rad = validPos.Radius;
Sphere validPos_ = null;
if (path.NumSphere > 1)
{
validPos_ = new Sphere(path.LocalSpaceSphere[1]);
}
var clearCell = true;
if (path.BuildingCheck)
{
clearCell = !path.HitsInteriorCell;
}
Polygon hitPoly = null;
var maxIterations = 20; // hardcoded
for (var i = 0; i < maxIterations; i++)
{
var centerSolid = false;
if (RootNode.sphere_intersects_solid_poly(validPos, rad, ref centerSolid, ref hitPoly, clearCell))
{
if (hitPoly != null)
{
hitPoly.adjust_to_placement_poly(validPos, validPos_, rad, centerSolid, clearCell);
continue;
}
}
else
{
if (path.NumSphere >= 2)
{
if (RootNode.sphere_intersects_solid_poly(validPos_, rad, ref centerSolid, ref hitPoly, clearCell))
{
if (hitPoly != null)
{
hitPoly.adjust_to_placement_poly(validPos_, validPos, rad, centerSolid, clearCell);
continue;
}
}
else
{
return(placement_insert_inner(validPos, path, i));
}
}
else
{
return(placement_insert_inner(validPos, path, i));
}
}
rad *= 2;
}
return(TransitionState.Collided);
}