outline_circle.h

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00001 /*
00002 **  ClanLib SDK
00003 **  Copyright (c) 1997-2011 The ClanLib Team
00004 **
00005 **  This software is provided 'as-is', without any express or implied
00006 **  warranty.  In no event will the authors be held liable for any damages
00007 **  arising from the use of this software.
00008 **
00009 **  Permission is granted to anyone to use this software for any purpose,
00010 **  including commercial applications, and to alter it and redistribute it
00011 **  freely, subject to the following restrictions:
00012 **
00013 **  1. The origin of this software must not be misrepresented; you must not
00014 **     claim that you wrote the original software. If you use this software
00015 **     in a product, an acknowledgment in the product documentation would be
00016 **     appreciated but is not required.
00017 **  2. Altered source versions must be plainly marked as such, and must not be
00018 **     misrepresented as being the original software.
00019 **  3. This notice may not be removed or altered from any source distribution.
00020 **
00021 **  Note: Some of the libraries ClanLib may link to may have additional
00022 **  requirements or restrictions.
00023 **
00024 **  File Author(s):
00025 **
00026 **    Harry Storbacka
00027 **    Magnus Norddahl
00028 **    (if your name is missing here, please add it)
00029 */
00030 
00033 
00034 #pragma once
00035 
00036 #include "../api_display.h"
00037 #include "../../Core/Math/point.h"
00038 
00045 class CL_OutlineCircle
00046 {
00049 
00050  public:
00052         CL_OutlineCircle() :
00053                 position(-1.0,-1.0),
00054                 radius(0),
00055                 start(0),
00056                 end(0)
00057         {
00058                 return;
00059         }
00060 
00064 
00065  public:
00069         bool collide(const CL_OutlineCircle &other) const
00070         {
00071                 if( &other == this )
00072                         return false;
00073 
00074                 CL_Pointf pos = position - other.position;
00075                 float dist = float(sqrt( pos.x*pos.x+pos.y*pos.y ));
00076 
00077                 if( dist > (radius + other.radius) )
00078                         return false;
00079 
00080                 return true;
00081         }
00082 
00086 
00087  public:
00088         CL_Pointf position;
00089         float radius;
00090         unsigned int start;
00091         unsigned int end;
00093 };
00094