Add new creation method from a visual representation

game/unit.cpp

@@ -0,0 +1,26 @@
+#include "unit.h"
+
+#include "unitv.h"
+
+#include <memory>
+
+std::unique_ptr<CUnit> CUnit::getUnitFromVis( unitVis_c vis )
+{
+	switch( vis )
+	{
+		case '^':
+		case '>':
+		case 'v':
+		case '<':
+		{
+			std::unique_ptr<CUnit> p = std::unique_ptr<CUnit>(new CUnitV);
+			if( (bool)p && p->setFromVisual(vis) )
+			{
+				return std::move(p);
+			}
+			break;
+		}
+	}
+
+	return std::move(std::unique_ptr<CUnit>(nullptr));
+}