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.
123 lines
2.3 KiB
C++
123 lines
2.3 KiB
C++
//###########################################################################
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//
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// $Workfile: RAY.HPP $
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//
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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// Copyright(c) 1993 J. M. Albertson - All Rights Reserved
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//
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//###########################################################################
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#pragma once
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#include "Stuff.hpp"
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#include "Point3D.hpp"
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#include "UnitVector.hpp"
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namespace Stuff {
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class Plane;
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class Sphere;
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class OBB;
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//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Ray3D ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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class Ray3D
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#if defined(_ARMOR)
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: public Stuff::Signature
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#endif
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{
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public:
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Point3D
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origin;
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UnitVector3D
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direction;
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Ray3D()
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{}
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Ray3D(
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const Point3D &origin,
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const UnitVector3D &direction
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):
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origin(origin),
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direction(direction)
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{}
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//
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// Ray3D projection functions
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//
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void
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Project(
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Scalar length,
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Point3D *result
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)
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{
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Check_Object(this); Check_Object(result);
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Vector3D temp; temp.Multiply(direction,length);
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result->Add(origin,temp);
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}
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Scalar
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GetLengthToClosestPointTo(const Point3D &point)
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{
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Check_Object(this); Check_Object(&point);
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Vector3D temp; temp.Subtract(point,origin);
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return temp*direction;
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}
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void
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GetClosestPointTo(
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const Point3D &point,
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Point3D *result
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)
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{
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Check_Object(this); Check_Object(result); Check_Object(&point);
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Project(GetLengthToClosestPointTo(point),result);
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}
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//
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// Assignment operators
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//
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Ray3D&
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SetDirection(const Vector3D &vector);
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Ray3D&
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SetOrigin(const Point3D &point)
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{Check_Pointer(this); origin = point; return *this;}
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//
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// Ray3D intersection functions
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//
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Scalar
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GetDistanceTo(
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const Plane &plane,
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Scalar *product
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) const;
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Scalar
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GetDistanceTo(
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const Sphere &sphere,
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Scalar *penetration
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) const;
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Scalar
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GetDistanceTo(const OBB &obb) const;
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//
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// Test support
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//
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void
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TestInstance() const
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{}
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static bool
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TestClass();
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};
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Scalar
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Find_Closest_Approach(
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const Point3D& origin1,
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const Vector3D& velocity1,
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Point3D *result1,
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const Point3D& origin2,
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const Vector3D& velocity2,
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Point3D *result2,
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Scalar *time,
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bool *constant
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);
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}
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