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37 lines
966 B
C++
37 lines
966 B
C++
#ifndef _DB_SQLITE3_H
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#define _DB_SQLITE3_H
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#include "db.h"
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#include <unordered_map>
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#include <sqlite3.h>
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class DBSQLite3 : public DB {
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public:
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DBSQLite3(const std::string &mapdir);
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std::vector<BlockPos> getBlockPos(BlockPos min, BlockPos max) override;
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void getBlocksOnXZ(BlockList &blocks, int16_t x, int16_t z,
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int16_t min_y, int16_t max_y) override;
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void getBlocksByPos(BlockList &blocks,
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const std::vector<BlockPos> &positions) override;
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~DBSQLite3() override;
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bool preferRangeQueries() const override { return false; }
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private:
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inline void getPosRange(int64_t &min, int64_t &max, int16_t zPos,
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int16_t zPos2) const;
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void loadBlockCache(int16_t zPos);
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sqlite3 *db;
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sqlite3_stmt *stmt_get_block_pos;
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sqlite3_stmt *stmt_get_block_pos_z;
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sqlite3_stmt *stmt_get_blocks_z;
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sqlite3_stmt *stmt_get_block_exact;
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int16_t blockCachedZ = -10000;
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std::unordered_map<int16_t, BlockList> blockCache; // indexed by X
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};
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#endif // _DB_SQLITE3_H
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