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73 lines
2.5 KiB
C++

//===========================================================================//
// File: unitvec.cc //
// Project: MUNGA Brick: Math Library //
// Contents: Implementation details for unit vector class //
//---------------------------------------------------------------------------//
// Date Who Modification //
// -------- --- ---------------------------------------------------------- //
// 11/19/94 JMA Initial coding. //
//---------------------------------------------------------------------------//
// Copyright (C) 1994-1995, Virtual World Entertainment, Inc. //
// All Rights reserved worldwide //
// This unpublished sourcecode is PROPRIETARY and CONFIDENTIAL //
//===========================================================================//
#include "StuffHeaders.hpp"
const UnitVector3D
UnitVector3D::Forward(FORWARD_X, FORWARD_Y, FORWARD_Z);
const UnitVector3D
UnitVector3D::Backward(BACKWARD_X, BACKWARD_Y, BACKWARD_Z);
const UnitVector3D
UnitVector3D::Left(LEFT_X, LEFT_Y, LEFT_Z);
const UnitVector3D
UnitVector3D::Right(RIGHT_X, RIGHT_Y, RIGHT_Z);
const UnitVector3D
UnitVector3D::Up(UP_X, UP_Y, UP_Z);
const UnitVector3D
UnitVector3D::Down(DOWN_X, DOWN_Y, DOWN_Z);
//
//#############################################################################
//#############################################################################
//
UnitVector3D&
UnitVector3D::Lerp(
const UnitVector3D& v1,
const UnitVector3D& v2,
Scalar t
)
{
Check_Pointer(this);
Check_Object(&v1);
Check_Object(&v2);
//
//-------------------------------------------------------
// Lerp the normals as a regular vector (yeah, I know)...
//-------------------------------------------------------
//
Vector3D result;
result.Lerp(v1, v2, t);
Normalize(result);
Check_Object(this);
return *this;
}
//
//#############################################################################
//#############################################################################
//
void
UnitVector3D::TestInstance() const
{
#ifdef _ARMOR
Scalar length = Vector3D::GetLengthSquared();
Scalar diff = 1.0f - length;
//Verify(Small_Enough(diff,3e-5f));
Verify(Small_Enough(diff));
#endif
}