CrystalSpace

Public API Reference

csgeom/polyidx.h

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00001 /*
00002     Copyright (C) 1998 by Jorrit Tyberghein
00003 
00004     This library is free software; you can redistribute it and/or
00005     modify it under the terms of the GNU Library General Public
00006     License as published by the Free Software Foundation; either
00007     version 2 of the License, or (at your option) any later version.
00008 
00009     This library is distributed in the hope that it will be useful,
00010     but WITHOUT ANY WARRANTY; without even the implied warranty of
00011     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00012     Library General Public License for more details.
00013 
00014     You should have received a copy of the GNU Library General Public
00015     License along with this library; if not, write to the Free
00016     Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
00017 */
00018 
00019 #ifndef __CS_POLYIDX_H__
00020 #define __CS_POLYIDX_H__
00021 
00029 #include "csextern.h"
00030 
00038 class CS_CRYSTALSPACE_EXPORT csPolyIndexed
00039 {
00040 protected:
00042   int* vertices_idx;
00044   int num_vertices;
00046   int max_vertices;
00047 
00048 public:
00052   csPolyIndexed (int start_size = 10);
00053 
00055   csPolyIndexed (csPolyIndexed& copy);
00056 
00058   virtual ~csPolyIndexed ();
00059 
00061   csPolyIndexed& operator = (const csPolyIndexed& other);
00062 
00066   void MakeEmpty ();
00067 
00071   int GetVertexCount () const { return num_vertices; }
00072 
00076   int* GetVertexIndices () { return vertices_idx; }
00077 
00081   const int* GetVertexIndices () const { return vertices_idx; }
00082 
00086   int GetVertex (int i)  const
00087   {
00088     if (i<0 || i>=num_vertices) return -1;
00089     return vertices_idx[i];
00090   }
00091 
00095   int& operator[] (int i)
00096   {
00097     CS_ASSERT (i >= 0 && i < num_vertices);
00098     return vertices_idx[i];
00099   }
00100 
00104   int& operator[] (int i) const
00105   {
00106     CS_ASSERT (i >= 0 && i < num_vertices);
00107     return vertices_idx[i];
00108   }
00109 
00113   void MakeRoom (int new_max);
00114 
00119   int AddVertex (int i);
00120 };
00121 
00124 #endif // __CS_POLYIDX_H__

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