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SphereIntersection.h

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00001 //------------------------------------------------------------------------------
00002 // Lamp : Open source game middleware
00003 // Copyright (C) 2004  Junpei Ohtani ( Email : junpee@users.sourceforge.jp )
00004 //
00005 // This library is free software; you can redistribute it and/or
00006 // modify it under the terms of the GNU Lesser General Public
00007 // License as published by the Free Software Foundation; either
00008 // version 2.1 of the License, or (at your option) any later version.
00009 //
00010 // This library is distributed in the hope that it will be useful,
00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013 // Lesser General Public License for more details.
00014 //
00015 // You should have received a copy of the GNU Lesser General Public
00016 // License along with this library; if not, write to the Free Software
00017 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00018 //------------------------------------------------------------------------------
00019 
00020 /** @file
00021  * 球交差ヘッダ
00022  * @author Junpee
00023  */
00024 
00025 #ifndef SPHERE_INTERSECTION_H_
00026 #define SPHERE_INTERSECTION_H_
00027 
00028 namespace Lamp{
00029 
00030 class Intersection;
00031 class Sphere;
00032 class Triangle;
00033 
00034 //------------------------------------------------------------------------------
00035 /**
00036  * 球交差
00037  */
00038 class SphereIntersection{
00039 public:
00040     //--------------------------------------------------------------------------
00041     // 点
00042     //--------------------------------------------------------------------------
00043     /**
00044      * 点交差
00045      * @param sphere 球
00046      * @param point 点
00047      * @return 交差していればtrue
00048      */
00049     static bool intersect(const Sphere& sphere, const Vector3& point);
00050 
00051     //--------------------------------------------------------------------------
00052     // 球
00053     //--------------------------------------------------------------------------
00054     /**
00055      * 球交差
00056      * @param sphere0 球
00057      * @param sphere1 球
00058      * @return 交差していればtrue
00059      */
00060     static bool intersect(const Sphere& sphere0, const Sphere& sphere1);
00061 
00062     /**
00063      * 球交差
00064      * @param intersecion 交差、返り値がtrueなら設定されている
00065      * @param sphere0 球
00066      * @param sphere1 球
00067      * @return 交差していればtrue
00068      */
00069     static bool intersect(Intersection* intersection,
00070         const Sphere& sphere0, const Sphere& sphere1);
00071 
00072     //--------------------------------------------------------------------------
00073     // 三角
00074     //--------------------------------------------------------------------------
00075     /**
00076      * 三角交差
00077      * @param sphere 球
00078      * @param triangle 三角
00079      * @return 交差していればtrue
00080      */
00081     static bool intersect(const Sphere& sphere, const Triangle& triangle);
00082 
00083     /**
00084      * 三角交差
00085      * @param intersecion 交差、返り値がtrueなら設定されている
00086      * @param sphere 球
00087      * @param triangle 三角
00088      * @return 交差していればtrue
00089      */
00090     static bool intersect(Intersection* intersection,
00091         const Sphere& sphere, const Triangle& triangle);
00092 
00093 private:
00094     //--------------------------------------------------------------------------
00095     // コンストラクタの隠蔽
00096     SphereIntersection();
00097 
00098 };
00099 
00100 //------------------------------------------------------------------------------
00101 } // End of namespace Lamp
00102 #endif // End of SPHERE_INTERSECTION_H_
00103 //------------------------------------------------------------------------------

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