91 lines
2.0 KiB
C++
91 lines
2.0 KiB
C++
/**
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@file Capsule.h
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@maintainer Morgan McGuire, http://graphics.cs.williams.edu
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@created 2003-02-07
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@edited 2005-08-20
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Copyright 2000-2006, Morgan McGuire.
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All rights reserved.
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*/
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#ifndef G3D_CAPSULE_H
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#define G3D_CAPSULE_H
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#include "G3D/platform.h"
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#include "G3D/g3dmath.h"
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#include "G3D/Vector3.h"
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namespace G3D {
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class Line;
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class AABox;
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/**
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A shape formed by extruding a sphere along a line segment.
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*/
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class Capsule {
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private:
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Vector3 p1;
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Vector3 p2;
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float _radius;
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public:
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/** Uninitialized */
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Capsule();
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Capsule(class BinaryInput& b);
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Capsule(const Vector3& _p1, const Vector3& _p2, float _r);
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void serialize(class BinaryOutput& b) const;
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void deserialize(class BinaryInput& b);
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/** The line down the center of the capsule */
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Line axis() const;
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inline float radius() const {
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return _radius;
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}
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/** Argument may be 0 or 1 */
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inline Vector3 point(int i) const {
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debugAssert(i == 0 || i == 1);
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return (i == 0) ? p1 : p2;
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}
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/** Distance between the sphere centers. The total extent of the cylinder is
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2r + h. */
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inline float height() const {
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return (p1 - p2).magnitude();
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}
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inline Vector3 center() const {
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return (p1 + p2) / 2.0;
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}
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/** Get a reference frame in which the center of mass is the origin and Y is the axis of the capsule.*/
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void getReferenceFrame(class CoordinateFrame& cframe) const;
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/**
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Returns true if the point is inside the capsule or on its surface.
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*/
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bool contains(const Vector3& p) const;
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float volume() const;
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float area() const;
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/** Get axis aligned bounding box */
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void getBounds(AABox& out) const;
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/** Random world space point with outward facing normal. */
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void getRandomSurfacePoint(Vector3& P, Vector3& N) const;
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/** Point selected uniformly at random over the volume. */
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Vector3 randomInteriorPoint() const;
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};
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} // namespace
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#endif
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