mirror of
https://github.com/TorqueGameEngines/Torque3D.git
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888332a85c
apparently templated classes need all functions to be inline, otherwise unresolved symbols macro for switching between matrixf and templated few functions that were missed
118 lines
3.9 KiB
C++
118 lines
3.9 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 _MORIENTEDBOX_H_
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#define _MORIENTEDBOX_H_
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#ifndef _MBOXBASE_H_
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#include "math/mBoxBase.h"
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#endif
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#ifndef _MPOINT3_H_
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#include "math/mPoint3.h"
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#endif
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#ifndef USE_TEMPLATE_MATRIX
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class MatrixF;
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#else
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template<typename DATA_TYPE, U32 rows, U32 cols> class Matrix;
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typedef Matrix<F32, 4, 4> MatrixF;
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#endif
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class Box3F;
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/// An oriented bounding box (OBB) described by a center point, three normalizes axis
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/// vectors, and half-extents along each of the axes.
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class OrientedBox3F : public BoxBase
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{
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public:
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enum Axis
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{
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RightVector,
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ForwardVector,
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UpVector
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};
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protected:
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/// Center point.
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Point3F mCenter;
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/// Normalized axis vectors.
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Point3F mAxes[ 3 ];
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/// Box half-extents along each axis.
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Point3F mHalfExtents;
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/// Corner points.
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Point3F mPoints[ NUM_POINTS ];
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void _initPoints();
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public:
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OrientedBox3F() {}
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OrientedBox3F( const MatrixF& transform, const Point3F& extents ) { set( transform, extents ); }
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OrientedBox3F( const MatrixF& transform, const Box3F& aabb ) { set( transform, aabb ); }
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/// Return the center point of the bounding box.
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const Point3F& getCenter() const { return mCenter; }
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/// Return the normalized axis vector for the given world-space axis.
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const Point3F& getAxis( U32 i ) const
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{
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AssertFatal( i < 3, "OrientedBox3F::getAxis - Index out of range" );
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return mAxes[ i ];
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}
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/// Return the half-extents along each axis.
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///
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/// Since the OBBs are symmetrical across each axis, we store half-extents
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/// instead of full extents as usually half-extents are needed in the computations.
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const Point3F& getHalfExtents() const { return mHalfExtents; }
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/// Return true if the given point is contained in the OBB.
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bool isContained( const Point3F& point ) const;
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/// Return the corner points of the box.
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const Point3F* getPoints() const { return mPoints; }
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/// Return the array of corner points for the box.
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operator const Point3F*() const { return getPoints(); }
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/// Compute the OBB values from the given transform and extents.
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///
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/// @param transform World->object space transform.
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/// @param extents Box extent on each axis.
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void set( const MatrixF& transform, const Point3F& extents );
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/// Compute the OBB from an AABB in the given transform space.
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///
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/// @param transform Transform space for the AABB.
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/// @param aabb An axis-aligned bounding box in the given transform space.
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void set( const MatrixF& transform, const Box3F& aabb );
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};
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#endif // !_MORIENTEDBOX_H_
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