89 lines
2.8 KiB
C++
89 lines
2.8 KiB
C++
// Ryzom - MMORPG Framework <http://dev.ryzom.com/projects/ryzom/>
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// Copyright (C) 2010 Winch Gate Property Limited
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Affero General Public License as
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// published by the Free Software Foundation, either version 3 of the
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// License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Affero General Public License for more details.
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//
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// You should have received a copy of the GNU Affero General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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#ifndef RY_VECTOR2I_H
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#define RY_VECTOR2I_H
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#include "nel/misc/types_nl.h"
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// ***************************************************************************
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/**
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* A 2D vector of sint32.
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*/
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class CVector2i
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{
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public:
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public: // Attributes.
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sint32 x,y;
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public: // Methods.
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// Object.
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/// Constructor wich do nothing.
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CVector2i() {}
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/// Constructor .
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CVector2i(sint32 _x, sint32 _y) : x(_x), y(_y) {}
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/// Copy Constructor.
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CVector2i(const CVector2i &v) : x(v.x), y(v.y) {}
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// Base Maths.
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CVector2i &operator+=(const CVector2i &v) {x+=v.x; y+=v.y; return *this;}
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CVector2i &operator-=(const CVector2i &v) {x-=v.x; y-=v.y; return *this;}
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CVector2i &operator*=(sint32 i) {x*=i; y*=i; return *this;}
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CVector2i &operator/=(sint32 i) {x/=i; y/=i; return *this;}
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CVector2i operator+(const CVector2i &v) const {return CVector2i(x+v.x, y+v.y);}
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CVector2i operator-(const CVector2i &v) const {return CVector2i(x-v.x, y-v.y);}
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CVector2i operator*(sint32 i) const {return CVector2i(x*i, y*i);}
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CVector2i operator/(sint32 i) const {return CVector2i(x/i, y/i);}
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CVector2i operator-() const {return CVector2i(-x, -y);}
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// Advanced Maths.
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// Dot product.
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sint32 operator*(const CVector2i &v) const {return x*v.x + y*v.y;}
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// Return the norm of the vector.
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sint32 norm() const {return (sint32)sqrt((double)sqrnorm());}
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// Return the square of the norm of the vector.
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sint32 sqrnorm() const {return x*x + y*y;}
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// Normalize the vector.
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void normalize()
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{
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sint32 i= norm();
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if(i>0)
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*this/=i;
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}
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/// Return the vector normalized.
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CVector2i normed() const
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{
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CVector2i v= *this;
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v.normalize();
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return v;
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}
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// Misc.
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void set(sint32 _x, sint32 _y) {x= _x; y=_y;}
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bool operator==(const CVector2i &v) const {return x==v.x && y==v.y;}
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bool operator!=(const CVector2i &v) const {return !(*this==v);}
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bool isNull() const {return x==0.0f && y==0.0f;}
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// serial.
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void serial(NLMISC::IStream &i) {i.serial(x,y);}
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};
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#endif
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