OpenTTD
yapf_node.hpp
Go to the documentation of this file.
1 /* $Id: yapf_node.hpp 23640 2011-12-20 17:57:56Z truebrain $ */
2 
3 /*
4  * This file is part of OpenTTD.
5  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
6  * OpenTTD 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.
7  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
8  */
9 
12 #ifndef YAPF_NODE_HPP
13 #define YAPF_NODE_HPP
14 
17  TileIndex m_tile;
18  Trackdir m_td;
19  DiagDirection m_exitdir;
20 
21  inline void Set(TileIndex tile, Trackdir td)
22  {
23  m_tile = tile;
24  m_td = td;
25  m_exitdir = (m_td == INVALID_TRACKDIR) ? INVALID_DIAGDIR : TrackdirToExitdir(m_td);
26  }
27 
28  inline int CalcHash() const {return m_exitdir | (m_tile << 2);}
29  inline bool operator == (const CYapfNodeKeyExitDir& other) const {return (m_tile == other.m_tile) && (m_exitdir == other.m_exitdir);}
30 
31  void Dump(DumpTarget &dmp) const
32  {
33  dmp.WriteTile("m_tile", m_tile);
34  dmp.WriteEnumT("m_td", m_td);
35  dmp.WriteEnumT("m_exitdir", m_exitdir);
36  }
37 };
38 
40 {
41  inline int CalcHash() const {return m_td | (m_tile << 4);}
42  inline bool operator == (const CYapfNodeKeyTrackDir& other) const {return (m_tile == other.m_tile) && (m_td == other.m_td);}
43 };
44 
46 template <class Tkey_, class Tnode>
47 struct CYapfNodeT {
48  typedef Tkey_ Key;
49  typedef Tnode Node;
50 
51  Tkey_ m_key;
52  Node *m_hash_next;
53  Node *m_parent;
54  int m_cost;
55  int m_estimate;
56 
57  inline void Set(Node *parent, TileIndex tile, Trackdir td, bool is_choice)
58  {
59  m_key.Set(tile, td);
60  m_hash_next = NULL;
61  m_parent = parent;
62  m_cost = 0;
63  m_estimate = 0;
64  }
65 
66  inline Node *GetHashNext() {return m_hash_next;}
67  inline void SetHashNext(Node *pNext) {m_hash_next = pNext;}
68  inline TileIndex GetTile() const {return m_key.m_tile;}
69  inline Trackdir GetTrackdir() const {return m_key.m_td;}
70  inline const Tkey_& GetKey() const {return m_key;}
71  inline int GetCost() const {return m_cost;}
72  inline int GetCostEstimate() const {return m_estimate;}
73  inline bool operator < (const Node& other) const {return m_estimate < other.m_estimate;}
74 
75  void Dump(DumpTarget &dmp) const
76  {
77  dmp.WriteStructT("m_key", &m_key);
78  dmp.WriteStructT("m_parent", m_parent);
79  dmp.WriteLine("m_cost = %d", m_cost);
80  dmp.WriteLine("m_estimate = %d", m_estimate);
81  }
82 };
83 
84 #endif /* YAPF_NODE_HPP */