44 lines
852 B
C++
44 lines
852 B
C++
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#include "Disk.h"
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#include "PackStream.h"
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Disk::Disk()
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{
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}
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Disk::Disk(const Vector3 &point, const Vector3 &normal, double radius):
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InfinitePlane(point, normal), radius(radius)
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{
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radius2 = radius * radius;
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}
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int Disk::checkRayIntersection(const InfiniteRay &ray, Vector3 *intersection) const
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{
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int result = InfinitePlane::checkRayIntersection(ray, intersection);
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if (result == 1)
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{
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Vector3 v = intersection->sub(getPoint());
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double d2 = v.dotProduct(v);
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return (d2 <= radius2) ? 1 : 0;
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}
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else
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{
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return result;
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}
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}
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void Disk::save(PackStream *stream) const
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{
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InfinitePlane::save(stream);
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stream->write(&radius);
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stream->write(&radius2);
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}
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void Disk::load(PackStream *stream)
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{
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InfinitePlane::load(stream);
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stream->read(&radius);
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stream->read(&radius2);
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}
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