49 lines
1.5 KiB
C#
49 lines
1.5 KiB
C#
using OSMDatastructure;
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namespace OSMImporter
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{
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public class RegionManager
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{
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private string workingDirectory { get; }
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private readonly Dictionary<ulong, Region> _regions = new();
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public RegionManager(string workingDirectory)
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{
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this.workingDirectory = workingDirectory;
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}
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public Region? GetRegion(Coordinates coordinates)
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{
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if(this._regions.ContainsKey(coordinates.GetRegionHash()))
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return this._regions[coordinates.GetRegionHash()];
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else
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{
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Region? loadedRegion = LoadRegion(coordinates);
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if(loadedRegion != null)
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this._regions.Add(loadedRegion.regionHash, value: loadedRegion);
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return loadedRegion;
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}
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}
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public Region[] GetAllRegions()
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{
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return this._regions.Values.ToArray();
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}
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private Region? LoadRegion(Coordinates coordinates)
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{
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string fullPath = Path.Combine(workingDirectory, coordinates.GetRegionHash().ToString());
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Console.WriteLine(fullPath);
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if (!File.Exists(fullPath))
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return null;
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FileStream fileStream = new FileStream(fullPath, FileMode.Open);
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byte[] regionBytes = new byte[fileStream.Length];
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fileStream.Read(regionBytes, 0, regionBytes.Length);
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fileStream.Close();
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return ByteConverter.ToRegion(regionBytes);
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}
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}
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} |