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