GEEKING

Network/ClusterUpdateBuffer.h

@@ -0,0 +1,58 @@
+#pragma once
+
+#include <vector>
+
+#include "util/G3DCore.h"
+#include "util/UintSet.h"
+#include "boost/cstdint.hpp"
+#include "util/ClusterCellIterator.h"
+#include "boost/unordered_map.hpp"
+
+namespace RBX { 
+
+// these constants visible for testing
+const int kXZ_CHUNK_SIZE_AS_BITSHIFT = 5;
+const int kXZ_CHUNK_SIZE_AS_BITMASK = 0x1f;
+const int kY_CHUNK_SIZE_AS_BITSHIFT = 4;
+const int kY_CHUNK_SIZE_AS_BITMASK = 0x0f;
+
+namespace Network {
+
+typedef Vector3int16 ClusterCellUpdate;
+typedef unsigned int ChunkIndex;
+
+
+struct ClusterUpdateBuffer {
+
+private:
+    typedef boost::unordered_map<SpatialRegion::Id, UintSet, SpatialRegion::Id::boost_compatible_hash_value> BitSetUpdateMap;
+    BitSetUpdateMap::iterator lastFound;
+    BitSetUpdateMap bitSetUpdates;
+
+	size_t internalSize;
+public:
+	static void computeUintRepresentingLocationInChunk(
+		const ClusterCellUpdate& update, unsigned int* out);
+	static void computeGlobalLocationFromUintRepresentation(
+		const unsigned int& info, const Vector3int16& baseCellOffset,
+		ClusterCellUpdate* out);
+
+	ClusterUpdateBuffer();
+
+	size_t size() const;
+
+	void push(const ClusterCellUpdate& inputData);
+
+	bool chk(const ClusterCellUpdate& test);
+
+	void pop(ClusterCellUpdate* out);
+
+    static inline void nextCellInIterationOrder(const Vector3int16& cellpos, Vector3int16* out)
+    {
+        ClusterChunksIterator::nextCellInIterationOrder(cellpos, out);
+    }
+};
+
+}
+
+}