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SegmentIntersection.cpp

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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  * ƒZƒOƒƒ“ƒgŒð·ŽÀ‘•
00022  * @author Junpee
00023  */
00024 
00025 #include "LampBasic.h"
00026 #include "Geometry/Intersection/SegmentIntersection.h"
00027 
00028 namespace Lamp{
00029 
00030 //------------------------------------------------------------------------------
00031 // “_
00032 //------------------------------------------------------------------------------
00033 // “_Œð·
00034 bool SegmentIntersection::intersect(
00035     const Segment& segment, const Vector3& point, float range){
00036     Assert(false);
00037     return false;
00038 }
00039 //------------------------------------------------------------------------------
00040 // ƒZƒOƒƒ“ƒg
00041 //------------------------------------------------------------------------------
00042 // ƒZƒOƒƒ“ƒgŒð·
00043 bool SegmentIntersection::intersect(
00044     const Segment& segment0, const Segment& segment1, float range){
00045     return (segment0.getSquaredDistance(segment1) <= (range * range));
00046 }
00047 //------------------------------------------------------------------------------
00048 // ‹…
00049 //------------------------------------------------------------------------------
00050 // ‹…Œð·
00051 bool SegmentIntersection::intersect(const Segment& segment, const Sphere& sphere){
00052     // ‹…’†S‚Ƃ̋——£‚ª‹…”¼ŒaˆÈ“à‚È‚çŒð·‚·‚é
00053     float squaredDistance = segment.getSquaredDistance(sphere.getCenter());
00054     float radius = sphere.getRadius();
00055     return (squaredDistance <= (radius * radius));
00056 }
00057 //------------------------------------------------------------------------------
00058 // ŽOŠp
00059 //------------------------------------------------------------------------------
00060 // ŽOŠpŒð·
00061 bool SegmentIntersection::intersect(
00062     const Segment& segment, const Triangle& triangle){
00063     Assert(false);
00064     return false;
00065 }
00066 //------------------------------------------------------------------------------
00067 } // End of namespace Lamp
00068 //------------------------------------------------------------------------------

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