49 lines
939 B
C++
49 lines
939 B
C++
#include "InfinitePlane.h"
|
|
|
|
#include "PackStream.h"
|
|
#include "InfiniteRay.h"
|
|
|
|
InfinitePlane::InfinitePlane()
|
|
{
|
|
}
|
|
|
|
InfinitePlane::InfinitePlane(const Vector3 &point, const Vector3 &normal):
|
|
point(point), normal(normal)
|
|
{
|
|
}
|
|
|
|
int InfinitePlane::checkRayIntersection(const InfiniteRay &ray, Vector3 *intersection) const
|
|
{
|
|
Vector3 p1 = ray.getDirection();
|
|
double d = normal.dotProduct(p1);
|
|
|
|
if (fabs(d) < 1e-8)
|
|
{
|
|
if (normal.dotProduct(ray.getPointAtCursor(1.0).sub(point)) == 0)
|
|
{
|
|
return -1;
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
double u = point.sub(ray.getOrigin()).dotProduct(normal) / d;
|
|
*intersection = ray.getPointAtCursor(u);
|
|
return 1;
|
|
}
|
|
|
|
void InfinitePlane::save(PackStream *stream) const
|
|
{
|
|
point.save(stream);
|
|
normal.save(stream);
|
|
}
|
|
|
|
void InfinitePlane::load(PackStream *stream)
|
|
{
|
|
point.load(stream);
|
|
normal.load(stream);
|
|
}
|
|
|