Cyd
2b8ca921cb
Complete disaster-recovery snapshot: engine/game source, game data assets, VC6 toolchain + DX SDKs, build outputs, deployed game, and _UNUSED archive. Large binaries in Git LFS; text preserved byte-for-byte (core.autocrlf=false, no eol attributes). See RECOVERY.md for the one-clone rebuild procedure.
138 lines
4.0 KiB
C++
138 lines
4.0 KiB
C++
//===========================================================================//
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// File: normal.hh //
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// Project: MUNGA Brick: Math Library //
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// Contents: Implementation details for the normal class //
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//---------------------------------------------------------------------------//
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// Date Who Modification //
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// -------- --- ---------------------------------------------------------- //
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// 11/19/94 JMA Initial coding. //
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// 12/01/94 JMA Made compatible with SGI CC //
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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// This unpublished sourcecode is PROPRIETARY and CONFIDENTIAL //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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#pragma once
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#include "Stuff.hpp"
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#include "UnitVector.hpp"
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namespace Stuff {
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Normal3D ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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class Normal3D:
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public UnitVector3D
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{
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public:
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//
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// Constructors
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//
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Normal3D()
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{}
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Normal3D(
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Scalar x,
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Scalar y,
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Scalar z
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):
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UnitVector3D(x,y,z)
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{}
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Normal3D(const Normal3D &n):
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UnitVector3D(n)
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{}
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Normal3D(const UnitVector3D& v):
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UnitVector3D(v)
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{}
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explicit Normal3D(const Vector3D &v)
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{*this = v;}
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static const Normal3D
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Forward;
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static const Normal3D
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Backward;
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static const Normal3D
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Left;
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static const Normal3D
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Right;
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static const Normal3D
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Up;
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static const Normal3D
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Down;
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//
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// Assignment operators
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//
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Normal3D&
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operator=(const Normal3D& n)
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{UnitVector3D::operator=(n); return *this;}
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Normal3D&
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operator=(const UnitVector3D& v)
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{UnitVector3D::operator=(v); return *this;}
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Normal3D&
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operator=(const Vector3D& v)
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{Normalize(v); return *this;}
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//
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// Math operators
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//
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Normal3D&
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Negate(const Normal3D &v)
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{Vector3D::Negate(v); return *this;}
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Scalar
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operator*(const Vector3D& v) const
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{return Vector3D::operator*(v);}
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Normal3D& Multiply(
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const Normal3D &n,
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const LinearMatrix4D &m
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)
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{UnitVector3D::Multiply(n,m); return *this;}
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Normal3D&
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operator*=(const LinearMatrix4D &M)
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{Normal3D src(*this); return Multiply(src,M);}
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//
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// These functions will cause the vector to lose its unit length, thus
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// cause any downstream verifies to fail. We have to be able to only
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// normalize the normal once after all transformations if these are to
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// be of any benefit, so don't use them for now
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Normal3D&
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Multiply_Inverse(
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const Normal3D &Source,
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const AffineMatrix4D &M
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);
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Normal3D&
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Multiply(
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const Normal3D &Source,
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const AffineMatrix4D &M
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);
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//
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// Support functions
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//
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static bool
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TestClass();
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private:
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static const Normal3D identity;
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Normal3D& Negate(const Vector3D &V);
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Normal3D& Add(const Vector3D& V1,const Vector3D& V2);
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Normal3D& operator+=(const Vector3D& V);
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Normal3D& Subtract(const Vector3D& V1,const Vector3D& V2);
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Normal3D& operator-=(const Vector3D& V);
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Normal3D& Cross(const Vector3D& V1,const Vector3D& V2);
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Normal3D& Multiply(const Vector3D& V,Scalar Scale);
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Normal3D& operator*=(Scalar Value);
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Normal3D& Multiply(const Vector3D& V1,const Vector3D& V2);
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Normal3D& operator*=(const Vector3D &V);
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Normal3D& Multiply(const Vector3D &Source, const AffineMatrix4D &M);
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Normal3D& operator*=(const AffineMatrix4D &M);
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Normal3D& Divide(const Vector3D& V,Scalar Scale);
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Normal3D& operator/=(Scalar Value);
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Normal3D& Combine(const Vector3D& V1,Scalar t1,const Vector3D& V2,Scalar t2);
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};
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}
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