151 lines
3.0 KiB
C++
151 lines
3.0 KiB
C++
//========= Copyright © 1996-2005, Valve Corporation, All rights reserved. ============//
|
|
//
|
|
// Purpose:
|
|
//
|
|
// $NoKeywords: $
|
|
//=============================================================================//
|
|
|
|
#ifndef DISP_VERTINDEX_H
|
|
#define DISP_VERTINDEX_H
|
|
#ifdef _WIN32
|
|
#pragma once
|
|
#endif
|
|
|
|
|
|
#include "tier0/dbg.h"
|
|
|
|
|
|
// ------------------------------------------------------------------------ //
|
|
// Helper class used for indexing vertices in the 2D grid.
|
|
// ------------------------------------------------------------------------ //
|
|
|
|
class CVertIndex
|
|
{
|
|
public:
|
|
CVertIndex();
|
|
CVertIndex( short ix, short iy );
|
|
|
|
void Init( short ix, short iy );
|
|
|
|
short& operator[]( short i );
|
|
short const& operator[]( short i ) const;
|
|
void operator+=( CVertIndex const &other );
|
|
void operator-=( CVertIndex const &other );
|
|
CVertIndex operator+( CVertIndex const &other ) const;
|
|
CVertIndex operator-( CVertIndex const &other ) const;
|
|
void operator<<=( int shift );
|
|
void operator>>=( int shift );
|
|
bool operator==( CVertIndex const &other ) const;
|
|
bool operator!=( CVertIndex const &other ) const;
|
|
|
|
|
|
public:
|
|
|
|
short x, y;
|
|
};
|
|
|
|
|
|
// ------------------------------------------------------------------ //
|
|
// Helper functions.
|
|
// ------------------------------------------------------------------ //
|
|
|
|
inline CVertIndex BuildOffsetVertIndex(
|
|
CVertIndex const &nodeIndex,
|
|
CVertIndex const &offset,
|
|
int mul )
|
|
{
|
|
return CVertIndex( nodeIndex.x + offset.x * mul, nodeIndex.y + offset.y * mul );
|
|
}
|
|
|
|
|
|
// ------------------------------------------------------------------ //
|
|
// CVertIndex inlines.
|
|
// ------------------------------------------------------------------ //
|
|
|
|
inline CVertIndex::CVertIndex()
|
|
{
|
|
}
|
|
|
|
|
|
inline CVertIndex::CVertIndex( short ix, short iy )
|
|
{
|
|
x = ix;
|
|
y = iy;
|
|
}
|
|
|
|
|
|
inline void CVertIndex::Init( short ix, short iy )
|
|
{
|
|
x = ix;
|
|
y = iy;
|
|
}
|
|
|
|
|
|
inline short& CVertIndex::operator[]( short i )
|
|
{
|
|
Assert( i >= 0 && i <= 1 );
|
|
return ((short*)this)[i];
|
|
}
|
|
|
|
|
|
inline short const& CVertIndex::operator[]( short i ) const
|
|
{
|
|
Assert( i >= 0 && i <= 1 );
|
|
return ((short*)this)[i];
|
|
}
|
|
|
|
|
|
inline void CVertIndex::operator+=( CVertIndex const &other )
|
|
{
|
|
x += other.x;
|
|
y += other.y;
|
|
}
|
|
|
|
|
|
inline void CVertIndex::operator-=( CVertIndex const &other )
|
|
{
|
|
x -= other.x;
|
|
y -= other.y;
|
|
}
|
|
|
|
|
|
inline CVertIndex CVertIndex::operator+( CVertIndex const &other ) const
|
|
{
|
|
return CVertIndex( x + other.x, y + other.y );
|
|
}
|
|
|
|
|
|
inline CVertIndex CVertIndex::operator-( CVertIndex const &other ) const
|
|
{
|
|
return CVertIndex( x - other.x, y - other.y );
|
|
}
|
|
|
|
|
|
inline void CVertIndex::operator<<=( int shift )
|
|
{
|
|
x <<= shift;
|
|
y <<= shift;
|
|
}
|
|
|
|
|
|
inline void CVertIndex::operator>>=( int shift )
|
|
{
|
|
x >>= shift;
|
|
y >>= shift;
|
|
}
|
|
|
|
|
|
inline bool CVertIndex::operator==( CVertIndex const &other ) const
|
|
{
|
|
return x==other.x && y==other.y;
|
|
}
|
|
|
|
|
|
inline bool CVertIndex::operator!=( CVertIndex const &other ) const
|
|
{
|
|
return x!=other.x || y!=other.y;
|
|
}
|
|
|
|
|
|
#endif // DISP_VERTINDEX_H
|