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+/*
+ Copyright (c) 2015, Matthias Schiffer <mschiffer@universe-factory.net>
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+
+#pragma once
+
+#include "Chunk.hpp"
+
+#include <memory>
+#include <stdexcept>
+#include <tuple>
+#include <unordered_map>
+
+
+namespace MinedMap {
+namespace World {
+
+class Region {
+public:
+ static const size_t SIZE = 32;
+
+private:
+ typedef std::tuple<size_t, size_t, size_t> ChunkDesc;
+ typedef std::unordered_map<size_t, ChunkDesc> ChunkMap;
+
+ std::unique_ptr<Chunk> chunks[SIZE][SIZE];
+
+ static ChunkMap processHeader(const uint8_t header[4096]);
+
+public:
+ Region(const char *filename);
+
+ const Chunk * operator()(size_t x, size_t z) {
+ if (x >= SIZE || z >= SIZE)
+ throw std::range_error("Region(): bad coordinates");
+
+ return chunks[x][z].get();
+ }
+};
+
+}
+}