mirror of https://github.com/axmolengine/axmol.git
130 lines
3.4 KiB
C++
130 lines
3.4 KiB
C++
/****************************************************************************
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Copyright (c) 2014-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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https://axmol.dev/
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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 deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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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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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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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 FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __AX_AABB_H__
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#define __AX_AABB_H__
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#include "base/Macros.h"
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#include "math/Math.h"
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namespace ax
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{
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/**
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* @addtogroup _3d
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* @{
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*/
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/**
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* Axis Aligned Bounding Box (AABB), usually calculate some rough but fast collision detection.
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*/
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class AX_DLL AABB
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{
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public:
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/**
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* Constructor.
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* @lua new
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*/
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AABB();
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/**
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* Constructor.
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* @lua new
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*/
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AABB(const Vec3& min, const Vec3& max);
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/**
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* Gets the center point of the bounding box.
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*/
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Vec3 getCenter();
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/* Near face, specified counter-clockwise looking towards the origin from the positive z-axis.
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* verts[0] : left top front
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* verts[1] : left bottom front
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* verts[2] : right bottom front
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* verts[3] : right top front
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*
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* Far face, specified counter-clockwise looking towards the origin from the negative z-axis.
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* verts[4] : right top back
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* verts[5] : right bottom back
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* verts[6] : left bottom back
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* verts[7] : left top back
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*/
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void getCorners(Vec3* dst) const;
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/**
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* Tests whether this bounding box intersects the specified bounding object.
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*/
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bool intersects(const AABB& aabb) const;
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/**
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* check whether the point is in.
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*/
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bool containPoint(const Vec3& point) const;
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/**
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* Sets this bounding box to the smallest bounding box
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* that contains both this bounding object and the specified bounding box.
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*/
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void merge(const AABB& box);
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/**
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* Sets this bounding box to the specified values.
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*/
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void set(const Vec3& min, const Vec3& max);
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/**
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* Reset min and max value.If you invoke this method, isEmpty() shall return true.
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*/
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void reset();
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/**
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* check the AABB object is empty(reset).
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*/
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bool isEmpty() const;
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/**
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* update the _min and _max from the given point.
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*/
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void updateMinMax(const Vec3* point, ssize_t num);
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/**
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* Transforms the bounding box by the given transformation matrix.
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*/
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void transform(const Mat4& mat);
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public:
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Vec3 _min;
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Vec3 _max;
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};
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// end of 3d group
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/// @}
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}
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#endif
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