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.
157 lines
3.8 KiB
C++
157 lines
3.8 KiB
C++
//===========================================================================//
|
|
// File: angle.cc //
|
|
// Project: MUNGA Brick: Math Library //
|
|
// Contents: Implementation details for angle classes //
|
|
//---------------------------------------------------------------------------//
|
|
// 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// This unpublished sourcecode is PROPRIETARY and CONFIDENTIAL //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"
|
|
|
|
//
|
|
//#############################################################################
|
|
//#############################################################################
|
|
//
|
|
Scalar
|
|
Radian::Normalize(Scalar Value)
|
|
{
|
|
Scalar temp = static_cast<Scalar>(fmod(Value,Two_Pi));
|
|
if (temp > Pi)
|
|
{
|
|
temp -= Two_Pi;
|
|
}
|
|
else if (temp <= -Pi)
|
|
{
|
|
temp += Two_Pi;
|
|
}
|
|
return temp;
|
|
}
|
|
|
|
//
|
|
//#############################################################################
|
|
//#############################################################################
|
|
//
|
|
Radian&
|
|
Radian::Normalize()
|
|
{
|
|
Check_Object(this);
|
|
angle = static_cast<Scalar>(fmod(angle,Two_Pi));
|
|
if (angle > Pi) {
|
|
angle -= Two_Pi;
|
|
}
|
|
else if (angle < -Pi) {
|
|
angle += Two_Pi;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
//
|
|
//#############################################################################
|
|
//#############################################################################
|
|
//
|
|
Radian&
|
|
Radian::Lerp(const Radian &a,const Radian &b,Scalar t)
|
|
{
|
|
Scalar a1,a2;
|
|
|
|
Check_Pointer(this);
|
|
Check_Object(&a);
|
|
Check_Object(&b);
|
|
a1 = Radian::Normalize(a.angle);
|
|
a2 = Radian::Normalize(b.angle);
|
|
if (a2-a1 > Pi) {
|
|
a2 -= Two_Pi;
|
|
}
|
|
else if (a2-a1 < -Pi) {
|
|
a2 += Two_Pi;
|
|
}
|
|
angle = Stuff::Lerp(a1, a2, t);
|
|
return *this;
|
|
}
|
|
|
|
#if 0
|
|
SinCosPair&
|
|
SinCosPair::operator=(const Radian &radian)
|
|
{
|
|
Check_Pointer(this);
|
|
Check_Object(&radian);
|
|
|
|
#if USE_ASSEMBLER_CODE
|
|
Scalar *f = &sine;
|
|
_asm {
|
|
push ebx
|
|
push edx
|
|
|
|
mov ebx, f
|
|
mov edx, radian.angle
|
|
|
|
fld dword ptr [edx]
|
|
fsincos
|
|
fstp dword ptr [ebx + 4]
|
|
fstp dword ptr [ebx]
|
|
|
|
pop edx
|
|
pop ebx
|
|
}
|
|
|
|
#else
|
|
cosine = cos(radian);
|
|
sine = sin(radian);
|
|
#endif
|
|
|
|
Check_Object(this);
|
|
|
|
return *this;
|
|
}
|
|
#endif
|
|
|
|
//
|
|
//#############################################################################
|
|
//#############################################################################
|
|
//
|
|
#if !defined(Spew)
|
|
void
|
|
Spew(
|
|
const char* group,
|
|
const Radian& angle
|
|
)
|
|
{
|
|
Check_Object(&angle);
|
|
SPEW((group, "%f rad+", angle.angle));
|
|
}
|
|
|
|
//
|
|
//#############################################################################
|
|
//#############################################################################
|
|
//
|
|
void
|
|
Spew(
|
|
const char* group,
|
|
const Degree& angle
|
|
)
|
|
{
|
|
Check_Object(&angle);
|
|
SPEW((group, "%f deg+", angle.angle));
|
|
}
|
|
|
|
//
|
|
//#############################################################################
|
|
//#############################################################################
|
|
//
|
|
void
|
|
Spew(
|
|
const char* group,
|
|
const SinCosPair& angle
|
|
)
|
|
{
|
|
Check_Object(&angle);
|
|
SPEW((group, "{%f,%f}+", angle.cosine, angle.sine));
|
|
}
|
|
#endif
|