Implemented "junction" zone type.

ChangeLog

@@ -8,6 +8,7 @@ BATTLES:
 * Implemented OH3 stack split / upgrade formulas according to AlexSpl
 
 RANDOM MAP GENERATOR:
+* Implemented "junction" zone type
 * Improved zone placing algorithm
 * More balanced distribution of treasure piles
 * More obstacles within zones

lib/rmg/CRmgTemplateZone.cpp

@@ -429,6 +429,10 @@ void CRmgTemplateZone::fractalize(CMapGenerator* gen)
 	}
 	assert (clearedTiles.size()); //this should come from zone connections
 
+	if (type != ETemplateZoneType::JUNCTION)
+	{
+		//junction is not fractalized, has only one straight path
+		//everything else remains blocked
 		while (possibleTiles.size())
 		{
 			//link tiles in random order
@@ -481,6 +485,7 @@ void CRmgTemplateZone::fractalize(CMapGenerator* gen)
 			tilesToClear.clear(); //empty this container
 			tilesToIgnore.clear();
 		}
+	}
 
 	for (auto tile : clearedTiles)
 	{