1 // Copyright (C) 2007, 2008, 2009, 2014 Ben Asselstine
2 //
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.
7 //
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.
12 //
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
16 // 02110-1301, USA.
17
18 #include <sigc++/functors/mem_fun.h>
19
20 #include "roadlist.h"
21 #include "road.h"
22 #include "GameMap.h"
23 #include "xmlhelper.h"
24
25 Glib::ustring Roadlist::d_tag = "roadlist";
26 //#define debug(x) {std::cerr<<__FILE__<<": "<<__LINE__<<": "<<x<<std::endl<<std::flush;}
27 #define debug(x)
28
29 Roadlist* Roadlist::s_instance=0;
30
getInstance()31 Roadlist* Roadlist::getInstance()
32 {
33 if (s_instance == 0)
34 s_instance = new Roadlist();
35
36 return s_instance;
37 }
38
getInstance(XML_Helper * helper)39 Roadlist* Roadlist::getInstance(XML_Helper* helper)
40 {
41 if (s_instance)
42 deleteInstance();
43
44 s_instance = new Roadlist(helper);
45 return s_instance;
46 }
47
deleteInstance()48 void Roadlist::deleteInstance()
49 {
50 if (s_instance)
51 delete s_instance;
52
53 s_instance = 0;
54 }
55
Roadlist()56 Roadlist::Roadlist()
57 {
58 }
59
Roadlist(XML_Helper * helper)60 Roadlist::Roadlist(XML_Helper* helper)
61 {
62 helper->registerTag(Road::d_tag, sigc::mem_fun(this, &Roadlist::load));
63 }
64
save(XML_Helper * helper) const65 bool Roadlist::save(XML_Helper* helper) const
66 {
67 bool retval = true;
68
69 retval &= helper->openTag(Roadlist::d_tag);
70
71 for (const_iterator it = begin(); it != end(); it++)
72 retval &= (*it)->save(helper);
73
74 retval &= helper->closeTag();
75
76 return retval;
77 }
78
load(Glib::ustring tag,XML_Helper * helper)79 bool Roadlist::load(Glib::ustring tag, XML_Helper* helper)
80 {
81 if (tag != Road::d_tag)
82 //what has happened?
83 return false;
84
85 add(new Road(helper));
86
87 return true;
88 }
89
calculateType(Vector<int> t) const90 int Roadlist::calculateType (Vector<int> t) const
91 {
92 // examine neighbour tiles to discover whether there's a road on them
93 bool u = false; //up
94 bool b = false; //bottom
95 bool l = false; //left
96 bool r = false; //right
97
98 if (t.y > 0)
99 u = getObjectAt(t + Vector<int>(0, -1));
100 if (t.y < GameMap::getHeight() - 1)
101 b = getObjectAt(t + Vector<int>(0, 1));
102 if (t.x > 0)
103 l = getObjectAt(t + Vector<int>(-1, 0));
104 if (t.x < GameMap::getWidth() - 1)
105 r = getObjectAt(t + Vector<int>(1, 0));
106
107 // then translate this to the type
108 int type = 2;
109 //show road type 2 when no other road tiles are around
110 if (!u && !b && !l && !r)
111 type = 2;
112 else if (u && b && l && r)
113 type = 2;
114 else if (!u && b && l && r)
115 type = 9;
116 else if (u && !b && l && r)
117 type = 8;
118 else if (u && b && !l && r)
119 type = 7;
120 else if (u && b && l && !r)
121 type = 10;
122 else if (u && b && !l && !r)
123 type = 1;
124 else if (!u && !b && l && r)
125 type = 0;
126 else if (u && !b && l && !r)
127 type = 3;
128 else if (u && !b && !l && r)
129 type = 4;
130 else if (!u && b && l && !r)
131 type = 6;
132 else if (!u && b && !l && r)
133 type = 5;
134 else if (u && !b && !l && !r)
135 type = Road::CONNECTS_NORTH;
136 else if (!u && b && !l && !r)
137 type = Road::CONNECTS_SOUTH;
138 else if (!u && !b && l && !r)
139 type = Road::CONNECTS_WEST;
140 else if (!u && !b && !l && r)
141 type = Road::CONNECTS_EAST;
142 return type;
143 }
144
145