CydandClaude Fable 5
fdd9ac9d97
Archival snapshot of the Virtual World Entertainment Tesla cockpit software, 1994-1996: MUNGA engine and L4 pod layer source (Borland C++ 5.0), BT/RP game code, and game content (models, audio, maps, gauges, Division renderer data). Includes third-party libraries: Division dVS/DPL graphics, HMI SOS audio, WATTCP networking. Files are preserved byte-for-byte (.gitattributes disables all line-ending conversion). README.md documents the layout, target hardware, and toolchain. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
140 lines
3.5 KiB
C++
140 lines
3.5 KiB
C++
//===========================================================================//
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// File: plane.hh //
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// Project: MUNGA Brick: Math Library //
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// Contents: Interface specification of the plane class //
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//---------------------------------------------------------------------------//
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// Date Who Modification //
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// -------- --- ---------------------------------------------------------- //
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// 12/01/94 JMA Initial coding. //
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//---------------------------------------------------------------------------//
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// Copyright (C) 1994-1995, Virtual World Entertainment, Inc. //
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// All Rights reserved worldwide //
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// This unpublished sourcecode is PROPRIETARY and CONFIDENTIAL //
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//===========================================================================//
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#if !defined(PLANE_HPP)
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# define PLANE_HPP
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# if !defined(NORMAL_HPP)
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# include <normal.hpp>
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# endif
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# if !defined(POINT3D_HPP)
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# include <point3d.hpp>
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# endif
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class Sphere;
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class ExtentBox;
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Plane ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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class Plane SIGNATURED
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{
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public:
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//
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// The plane equation is P*N = 0, where P is a homogeneous point, and N
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// is a quadruple representing the plane. Due to some slight
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// improvements gained when the offset is negated, a negative offset is
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// stored. This must be taken into account whenever we are doing the
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// point-to-plane dot product, where we must do a subtraction instead of
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// an addition
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//
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Normal
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normal;
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Scalar
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offset;
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//
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// Constructors
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//
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Plane()
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{}
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Plane(
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Scalar x,
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Scalar y,
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Scalar z,
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Scalar offset
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):
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normal(x,y,z),
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offset(offset)
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{}
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Plane(
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const Normal& n,
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Scalar offset
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):
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normal(n),
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offset(offset)
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{}
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Plane(
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const Point3D& p0,
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const Point3D& p1,
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const Point3D& p2
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);
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//
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// Transform functions
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//
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Plane&
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Multiply(
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const Plane &p,
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const LinearMatrix &m
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);
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Plane&
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operator*=(const LinearMatrix &m)
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{Check(this); Plane t(*this); return Multiply(t,m);}
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//
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// half-space division functions
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//
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Logical
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SeenBy(const Vector3D &A_Vector) const
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{return normal * A_Vector < 0.0;}
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Logical
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SeenBy(const Point3D &A_Point) const
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{return normal * A_Point > offset;}
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Scalar
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DistanceTo(const Point3D& A_Point) const
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{return normal * A_Point - offset;}
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//
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// half-space containment functions
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//
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Logical
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Contains(const Point3D &point) const;
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Logical
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ContainsSomeOf(const Sphere &sphere) const;
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Logical
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ContainsAllOf(const Sphere &sphere) const;
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Logical
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ContainsSomeOf(const ExtentBox &box) const;
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Logical
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ContainsAllOf(const ExtentBox &box) const;
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//
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// plane surface intersection functions
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//
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Logical
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Intersect(const Sphere &sphere) const;
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Logical
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Intersect(const ExtentBox &box) const;
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friend ostream&
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operator<<(ostream& Stream, const Plane &A_Plane);
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Logical
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TestInstance() const;
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static Logical
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TestClass();
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//
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// Equation solutions
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//
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Scalar
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CalculateX(Scalar y, Scalar z);
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Scalar
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CalculateY(Scalar x, Scalar z);
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Scalar
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CalculateZ(Scalar x, Scalar y);
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};
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#endif
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