mirror of
https://github.com/TorqueGameEngines/Torque3D.git
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110 lines
3.6 KiB
C++
110 lines
3.6 KiB
C++
//-----------------------------------------------------------------------------
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// Copyright (c) 2012 GarageGames, LLC
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//-----------------------------------------------------------------------------
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#ifndef _TSTRANSFORM_H_
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#define _TSTRANSFORM_H_
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#ifndef _MMATH_H_
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#include "math/mMath.h"
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#endif
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class Stream;
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/// compressed quaternion class
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struct Quat16
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{
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enum { MAX_VAL = 0x7fff };
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S16 x, y, z, w;
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void read(Stream *);
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void write(Stream *);
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void identity();
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QuatF getQuatF() const;
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QuatF &getQuatF( QuatF * q ) const;
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void set( const QuatF & q );
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S32 operator==( const Quat16 & q ) const;
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S32 operator!=( const Quat16 & q ) const { return !(*this == q); }
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};
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/// class to handle general scaling case
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///
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/// transform = rot * scale * inv(rot)
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struct TSScale
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{
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QuatF mRotate;
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Point3F mScale;
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void identity() { mRotate.identity(); mScale.set( 1.0f,1.0f,1.0f ); }
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S32 operator==( const TSScale & other ) const { return mRotate==other.mRotate && mScale==other.mScale; }
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};
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/// struct for encapsulating ts transform related static functions
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struct TSTransform
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{
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static Point3F & interpolate(const Point3F & p1, const Point3F & p2, F32 t, Point3F *);
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static F32 interpolate(F32 p1, F32 p2, F32 t);
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static QuatF & interpolate(const QuatF & q1, const QuatF & q2, F32 t, QuatF *);
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static TSScale & interpolate(const TSScale & s1, const TSScale & s2, F32 t, TSScale *);
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static void setMatrix(const QuatF & q, MatrixF *);
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static void setMatrix(const QuatF & q, const Point3F & p, MatrixF *);
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static void applyScale(F32 scale, MatrixF *);
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static void applyScale(const Point3F & scale, MatrixF *);
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static void applyScale(const TSScale & scale, MatrixF *);
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};
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inline Point3F & TSTransform::interpolate(const Point3F & p1, const Point3F & p2, F32 t, Point3F * p)
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{
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p->x = p1.x + t * (p2.x-p1.x);
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p->y = p1.y + t * (p2.y-p1.y);
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p->z = p1.z + t * (p2.z-p1.z);
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return *p;
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}
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inline F32 TSTransform::interpolate(F32 p1, F32 p2, F32 t)
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{
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return p1 + t*(p2-p1);
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}
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inline TSScale & TSTransform::interpolate(const TSScale & s1, const TSScale & s2, F32 t, TSScale * s)
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{
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TSTransform::interpolate(s1.mRotate,s2.mRotate,t,&s->mRotate);
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TSTransform::interpolate(s1.mScale,s2.mScale,t,&s->mScale);
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return *s;
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}
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inline void TSTransform::setMatrix( const QuatF & q, const Point3F & p, MatrixF * pDest )
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{
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q.setMatrix(pDest);
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pDest->setColumn(3,p);
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}
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inline void TSTransform::setMatrix( const QuatF & q, MatrixF * pDest )
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{
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q.setMatrix(pDest);
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}
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#endif
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