1 files changed, 14 insertions, 0 deletions
diff --git a/src/rotation.hpp b/src/rotation.hpp
new file mode 100644
index 00000000..39694336
--- /dev/null
+++ b/src/rotation.hpp
@@ -0,0 +1,14 @@
+#pragma once
+#include <cstddef>
+
+namespace floormat {
+
+enum class rotation : unsigned char {
+    N, NE, E, SE, S, SW, W, NW,
+};
+
+constexpr inline std::size_t rotation_BITS = 3;
+constexpr inline std::size_t rotation_MASK = (1 << rotation_BITS)-1;
+constexpr inline rotation rotation_COUNT = rotation{1 << rotation_BITS};
+
+} // namespace floormat