* partial handling of advmap objects changing battle background (like clover field) (their existence should change the background but nothing else)

* map should be drawn faster because empty tiles are no more blitted (according to info from .msk files) - I hope it will work correctly, if not please report or turn it off if too hard to make it work

lib/map.cpp

@@ -6,6 +6,7 @@
 #include "VCMI_Lib.h"
 #include <zlib.h>
 #include <boost/crc.hpp>
+#include "../hch/CLodHandler.h"
 
 /*
  * map.cpp, part of VCMI engine
@@ -1358,6 +1359,14 @@ void Mapa::readDefInfo( unsigned char * bufor, int &i)
 		if(vinya->id == 26)
 			std::memset(vinya->blockMap,255,6);
 
+		//calculating coverageMap
+		std::string nameCopy = vinya->name;
+		std::string msk = spriteh->getTextFile(nameCopy.replace( nameCopy.size()-4, 4, ".MSK" ));
+		for(int i=0; i<6; ++i)
+		{
+			vinya->coverageMap[i] = msk[i+2];
+		}
+
 		defy.push_back(vinya); // add this def to the vector
 	}
 }