/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2003 Robert Osfield 
 *
 * This library is open source and may be redistributed and/or modified under  
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or 
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
 * OpenSceneGraph Public License for more details.
*/

#ifndef OSG_VEC2S
#define OSG_VEC2S		1

namespace osg {

class Vec2s
{
public:

	typedef short value_type;

    union
    {
        struct {value_type x,y;};
        value_type _v[2];
    };
    Vec2s() {}
    Vec2s(value_type xx, value_type yy)
    { x = xx; y = yy; }
    
    inline value_type* ptr() { return _v; }
    inline const value_type* ptr() const { return _v; }

    inline bool operator == (const Vec2s& v) const { return _v[0]==v._v[0] && _v[1]==v._v[1]; }
    inline bool operator != (const Vec2s& v) const { return _v[0]!=v._v[0] || _v[1]!=v._v[1]; }
    inline bool operator <  (const Vec2s& v) const
    {
        if (_v[0]<v._v[0])      return true;
        else if (_v[0]>v._v[0]) return false;
        else return (_v[1]<v._v[1]);
    }
    
    inline Vec2s operator * (value_type rhs) const
    {
        return Vec2s(_v[0]*rhs, _v[1]*rhs);
    }
    
    inline Vec2s operator / (value_type rhs) const
    {
        return Vec2s(_v[0]/rhs, _v[1]/rhs);
    }
    
    inline Vec2s operator + (value_type rhs) const
    {
        return Vec2s(_v[0]+rhs, _v[1]+rhs);
    }
    
    inline Vec2s operator - (value_type rhs) const
    {
        return Vec2s(_v[0]-rhs, _v[1]-rhs);
    }
    
    inline Vec2s operator + (const Vec2s& rhs) const
    {
        return Vec2s(_v[0]+rhs._v[0], _v[1]+rhs._v[1]);
    }
    
    inline Vec2s operator - (const Vec2s& rhs) const
    {
        return Vec2s(_v[0]-rhs._v[0], _v[1]-rhs._v[1]);
    }
    
    inline Vec2s operator * (const Vec2s& rhs) const
    {
        return Vec2s(_v[0]*rhs._v[0], _v[1]*rhs._v[1]);
    }

};

}

#endif