initial commit, lordsawar source, slightly modified

[lordsawar] / src / roadlist.cpp

diff --git a/src/roadlist.cpp b/src/roadlist.cpp
new file mode 100644 (file)
index 0000000..890cebf
--- /dev/null
+++ b/src/roadlist.cpp
@@ -0,0 +1,144 @@
+//  Copyright (C) 2007, 2008, 2009 Ben Asselstine
+//
+//  This program 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; either version 3 of the License, or
+//  (at your option) any later version.
+//
+//  This program 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.  See the
+//  GNU Library General Public License for more details.
+//
+//  You should have received a copy of the GNU General Public License
+//  along with this program; if not, write to the Free Software
+//  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 
+//  02110-1301, USA.
+
+#include <sigc++/functors/mem_fun.h>
+
+#include "roadlist.h"
+#include "road.h"
+#include "GameMap.h"
+#include "xmlhelper.h"
+
+std::string Roadlist::d_tag = "roadlist";
+//#define debug(x) {cerr<<__FILE__<<": "<<__LINE__<<": "<<x<<endl<<flush;}
+#define debug(x)
+
+Roadlist* Roadlist::s_instance=0;
+
+Roadlist* Roadlist::getInstance()
+{
+    if (s_instance == 0)
+        s_instance = new Roadlist();
+
+    return s_instance;
+}
+
+Roadlist* Roadlist::getInstance(XML_Helper* helper)
+{
+    if (s_instance)
+        deleteInstance();
+
+    s_instance = new Roadlist(helper);
+    return s_instance;
+}
+
+void Roadlist::deleteInstance()
+{
+    if (s_instance)
+        delete s_instance;
+
+    s_instance = 0;
+}
+
+Roadlist::Roadlist()
+{
+}
+
+Roadlist::Roadlist(XML_Helper* helper)
+{
+    helper->registerTag(Road::d_tag, sigc::mem_fun(this, &Roadlist::load));
+}
+
+bool Roadlist::save(XML_Helper* helper) const
+{
+    bool retval = true;
+
+    retval &= helper->openTag(Roadlist::d_tag);
+
+    for (const_iterator it = begin(); it != end(); it++)
+        retval &= (*it)->save(helper);
+    
+    retval &= helper->closeTag();
+
+    return retval;
+}
+
+bool Roadlist::load(std::string tag, XML_Helper* helper)
+{
+    if (tag != Road::d_tag)
+    //what has happened?
+        return false;
+    
+    add(new Road(helper));
+
+    return true;
+}
+
+int Roadlist::calculateType (Vector<int> t) const
+{
+    // examine neighbour tiles to discover whether there's a road on them
+    bool u = false; //up
+    bool b = false; //bottom
+    bool l = false; //left
+    bool r = false; //right
+
+    if (t.y > 0)
+      u = getObjectAt(t + Vector<int>(0, -1));
+    if (t.y < GameMap::getHeight() - 1)
+      b = getObjectAt(t + Vector<int>(0, 1));
+    if (t.x > 0)
+      l = getObjectAt(t + Vector<int>(-1, 0));
+    if (t.x < GameMap::getWidth() - 1)
+    r = getObjectAt(t + Vector<int>(1, 0));
+
+    // then translate this to the type
+    int type = 2; 
+    //show road type 2 when no other road tiles are around
+    if (!u && !b && !l && !r)
+       type = 2;
+    else if (u && b && l && r)
+       type = 2;
+    else if (!u && b && l && r)
+       type = 9;
+    else if (u && !b && l && r)
+       type = 8;
+    else if (u && b && !l && r)
+       type = 7;
+    else if (u && b && l && !r)
+       type = 10;
+    else if (u && b && !l && !r)
+       type = 1;
+    else if (!u && !b && l && r)
+       type = 0;
+    else if (u && !b && l && !r)
+       type = 3;
+    else if (u && !b && !l && r)
+       type = 4;
+    else if (!u && b && l && !r)
+       type = 6;
+    else if (!u && b && !l && r)
+       type = 5;
+    else if (u && !b && !l && !r)
+       type = Road::CONNECTS_NORTH;
+    else if (!u && b && !l && !r)
+       type = Road::CONNECTS_SOUTH;
+    else if (!u && !b && l && !r)
+       type = Road::CONNECTS_WEST;
+    else if (!u && !b && !l && r)
+       type = Road::CONNECTS_EAST;
+    return type;
+}
+