1 files changed, 26 insertions, 0 deletions
diff --git a/Runtime/BaseClasses/BitField.h b/Runtime/BaseClasses/BitField.h
new file mode 100644
index 0000000..1ead092
--- /dev/null
+++ b/Runtime/BaseClasses/BitField.h
@@ -0,0 +1,26 @@
+#ifndef BITFIELD_H
+#define BITFIELD_H
+#include "Runtime/Serialize/SerializeUtility.h"
+
+struct BitField
+{
+	DECLARE_SERIALIZE_OPTIMIZE_TRANSFER (BitField)
+	UInt32 m_Bits;
+};
+
+enum { kPreUnity2UnusedLayerMask = 1 << 5 };
+
+template<class TransferFunc>
+void BitField::Transfer (TransferFunc& transfer)
+{
+	transfer.SetVersion (2);
+	transfer.Transfer (m_Bits, "m_Bits", kHideInEditorMask | kGenerateBitwiseDifferences);
+
+	if (transfer.IsOldVersion(1))
+	{
+		if (m_Bits & kPreUnity2UnusedLayerMask)
+			m_Bits |= 0xFFFF << 16;
+	}
+}
+
+#endif