Create the start of the RegionFileHandler

2020-09-27 10:16:01 -05:00
parent c7b35c825d
commit c5ad8b70e3
1 changed files with 116 additions and 0 deletions
@@ -0,0 +1,116 @@
+package backsun.lod.util;
+
+import java.io.File;
+import java.io.FileWriter;
+
+import backsun.lod.objects.LodChunk;
+import backsun.lod.objects.LodRegion;
+
+/**
+ * This object handles creating LodRegions
+ * from files and saving LodRegion objects
+ * to file.
+ * 
+ * @author James Seibel
+ * @version 09-27-2020
+ */
+public class LodRegionFileHandler
+{
+	private final String SAVE_DIR = "C:/Users/James Seibel/Desktop/lod_save_folder/";
+	
+	private final String FILE_NAME_PREFIX = "lod";
+	private final String FILE_NAME_DELIMITER = "-";
+	private final String FILE_EXTENSION = ".txt";
+	
+	
+	public LodRegionFileHandler()
+	{
+		
+	}
+	
+	
+	
+	
+	
+	
+	/**
+	 * Return the 
+	 */
+	public LodRegion loadRegionFromFile(int regionX, int regionZ)
+	{
+		return null;
+	}
+	
+	
+	
+	
+	
+	public void saveLodToDisk(LodChunk chunk)
+	{
+		// convert chunk coordinates to region
+		// coordinates
+		int x = (int) (chunk.x / 32.0);
+		int z = (int) (chunk.z / 32.0);
+		
+		File f = new File(getFileNameForRegion(x, z));
+		
+		
+		try
+		{
+			if (!f.exists())
+			{
+				System.out.println("LOD\tcreating file");
+				f.createNewFile();
+			}
+			
+			FileWriter fw = new FileWriter(f,true); // true means append to file
+			String data = chunk.x + "\t" + chunk.z;
+			
+			fw.write(data + "\n");
+			fw.close();
+			
+			System.out.println("LOD \t" + data);
+		}
+		catch(Exception e)
+		{
+			System.err.println("LOD ERROR \t" + e);
+		}
+	}
+	
+	
+	
+	
+	
+
+	/**
+	 * Returns true if a file exists for the region
+	 * containing the given chunk.
+	 */
+	public boolean regionFileExistForChunk(int chunkX, int chunkZ)
+	{
+		// convert chunk coordinates to region
+				// coordinates
+		int regionX = (int) (chunkX / 32.0);
+		int regionZ = (int) (chunkZ / 32.0);
+		
+		return new File(getFileNameForRegion(regionX, regionZ)).exists();
+	}
+	
+	/**
+	 * Returns true if a file exists
+	 * for the given region coordinates.
+	 */
+	public boolean regionFileExistForRegion(int regionX, int regionZ)
+	{
+		return new File(getFileNameForRegion(regionX, regionZ)).exists();
+	}
+	
+	
+	
+	private String getFileNameForRegion(int x, int z)
+	{
+		return SAVE_DIR + 
+				FILE_NAME_PREFIX + FILE_NAME_DELIMITER + 
+				x + FILE_NAME_DELIMITER + z + FILE_EXTENSION;
+	}
+}