worked on 3d models within map

adjusted grid factory
adjusted nav mesh factory
minoor changes/fixes
new helper classes
refactoring

math/Math.h

@@ -31,5 +31,16 @@ public:
 
 };
 
+namespace std {
+
+	template<class T> const T& min(const T& a, const T& b, const T& c) {
+		return min(a, min(b,c));
+	}
+	template<class T> const T& min(const T& a, const T& b, const T& c, const T& d) {
+		return min(a, min(b, min(c,d)));
+	}
+
+}
+
 
 #endif // K_MATH_MATH_H