Move source code into source subfolder

source/maths/mathtypes.h

@@ -0,0 +1,28 @@
+#ifndef _BASETYPES_H_
+#define _BASETYPES_H_
+
+#include <limits>       // std::numeric_limits
+
+#include "stdlib.h" // for size_t
+
+template<class T, size_t N>
+constexpr size_t _countof(T (&)[N]) { return N; }
+
+// Coordinate types
+typedef short 			coord_t;
+typedef unsigned short 	ucoord_t;
+
+// Invalid values
+static const coord_t 		coord_invalid 	= std::numeric_limits<coord_t>::max();
+static const ucoord_t 		ucoord_invalid 	= std::numeric_limits<ucoord_t>::max();
+
+// Direction representation
+enum class dir_t : char
+{
+	N = 'N',
+	S = 'S',
+	E = 'E',
+    W = 'W'
+};
+
+#endif //_BASETYPES_H_