1 /*
2 
3 *************************************************************************
4 
5 ArmageTron -- Just another Tron Lightcycle Game in 3D.
6 Copyright (C) 2000  Manuel Moos (manuel@moosnet.de)
7 
8 **************************************************************************
9 
10 This program is free software; you can redistribute it and/or
11 modify it under the terms of the GNU General Public License
12 as published by the Free Software Foundation; either version 2
13 of the License, or (at your option) any later version.
14 
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18 GNU General Public License for more details.
19 
20 You should have received a copy of the GNU General Public License
21 along with this program; if not, write to the Free Software
22 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
23 
24 ***************************************************************************
25 
26 */
27 
28 #ifndef ArmageTron_PATH_H
29 #define ArmageTron_PATH_H
30 
31 #include "tArray.h"
32 #include "eCoord.h"
33 
34 class eHalfEdge;
35 
36 class ePath{
37 public:
38 #ifdef DEBUG
39     static void RenderLast();  // renders the last found path
40 #endif
41 
42     friend class eHalfEdge;
43 
44     ePath();
45     ~ePath();
Valid()46     bool     Valid()           const { return current >= 0 && current < positions.Len(); }
CurrentPosition()47     eCoord&  CurrentPosition() const { return positions(current); }
CurrentOffset()48     eCoord&  CurrentOffset()   const { return offsets(current); }
49     bool     Proceed();
50     bool     GoBack();
51 
52     void Clear();
53 
54 protected:
55     tArray<eCoord> positions;
56     tArray<eCoord> offsets;
57     int            current;
58 
59     void Add(eHalfEdge     *edge);
60     void Add(const eCoord&  point);
61 
62 };
63 
64 #endif
65