1 // Copyright (C) 2007, 2008, 2009 Ben Asselstine
3 // This program is free software; you can redistribute it and/or modify
4 // it under the terms of the GNU General Public License as published by
5 // the Free Software Foundation; either version 3 of the License, or
6 // (at your option) any later version.
8 // This program is distributed in the hope that it will be useful,
9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 // GNU Library General Public License for more details.
13 // You should have received a copy of the GNU General Public License
14 // along with this program; if not, write to the Free Software
15 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 #include <sigc++/functors/mem_fun.h>
20 #include "bridgelist.h"
22 #include "xmlhelper.h"
24 std::string Bridgelist::d_tag = "bridgelist";
25 //#define debug(x) {cerr<<__FILE__<<": "<<__LINE__<<": "<<x<<endl<<flush;}
28 Bridgelist* Bridgelist::s_instance=0;
30 Bridgelist* Bridgelist::getInstance()
33 s_instance = new Bridgelist();
38 Bridgelist* Bridgelist::getInstance(XML_Helper* helper)
43 s_instance = new Bridgelist(helper);
47 void Bridgelist::deleteInstance()
55 Bridgelist::Bridgelist()
59 Bridgelist::Bridgelist(XML_Helper* helper)
61 helper->registerTag(Bridge::d_tag, sigc::mem_fun(this, &Bridgelist::load));
64 bool Bridgelist::save(XML_Helper* helper) const
68 retval &= helper->openTag(Bridgelist::d_tag);
70 for (const_iterator it = begin(); it != end(); it++)
71 retval &= (*it)->save(helper);
73 retval &= helper->closeTag();
78 bool Bridgelist::load(std::string tag, XML_Helper* helper)
80 if (tag != Bridge::d_tag)
84 add(new Bridge(helper));
89 int Bridgelist::calculateType(Vector<int> t) const
91 // examine neighbour tiles to discover whether there's a bridge on them
92 bool u = getObjectAt(t + Vector<int>(0, -1));
93 bool b = getObjectAt(t + Vector<int>(0, 1));
94 bool l = getObjectAt(t + Vector<int>(-1, 0));
95 bool r = getObjectAt(t + Vector<int>(1, 0));
98 return Bridge::CONNECTS_TO_NORTH;
100 return Bridge::CONNECTS_TO_SOUTH;
102 return Bridge::CONNECTS_TO_EAST;
104 return Bridge::CONNECTS_TO_WEST;
105 return Bridge::CONNECTS_TO_NORTH;