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Add method for discovering all chunks in world

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This commit is contained in:
Mike Primm 2013-05-24 23:59:08 -05:00
parent 6fc5fddd44
commit df55606023
1 changed files with 60 additions and 0 deletions
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60
src/main/java/org/dynmap/bukkit/BukkitWorld.java
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@ -2,8 +2,13 @@ package org.dynmap.bukkit;
/**
* Bukkit specific implementation of DynmapWorld
*/
import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.util.Arrays;
import java.util.List;
import org.bukkit.Chunk;
import org.bukkit.Location;
import org.bukkit.World;
import org.bukkit.permissions.Permission;
@ -12,6 +17,7 @@ import org.dynmap.DynmapChunk;
import org.dynmap.DynmapLocation;
import org.dynmap.DynmapWorld;
import org.dynmap.utils.MapChunkCache;
import org.dynmap.utils.TileFlags;
public class BukkitWorld extends DynmapWorld {
private World world;
@ -160,4 +166,58 @@ public class BukkitWorld extends DynmapWorld {
public World getWorld() {
return world;
}
// Return false if unimplemented
@Override
public int getChunkMap(TileFlags map) {
map.clear();
if (world == null) return -1;
int cnt = 0;
// Mark loaded chunks
for(Chunk c : world.getLoadedChunks()) {
map.setFlag(c.getX(), c.getZ(), true);
cnt++;
}
File f = world.getWorldFolder();
File regiondir = new File(f, "region");
File[] lst = regiondir.listFiles();
if(lst != null) {
byte[] hdr = new byte[4096];
for(File rf : lst) {
if(!rf.getName().endsWith(".mca")) {
continue;
}
String[] parts = rf.getName().split("\\.");
if((!parts[0].equals("r")) && (parts.length != 4)) continue;
RandomAccessFile rfile = null;
int x = 0, z = 0;
try {
x = Integer.parseInt(parts[1]);
z = Integer.parseInt(parts[2]);
rfile = new RandomAccessFile(rf, "r");
rfile.read(hdr, 0, hdr.length);
} catch (IOException iox) {
Arrays.fill(hdr, (byte)0);
} catch (NumberFormatException nfx) {
Arrays.fill(hdr, (byte)0);
} finally {
if(rfile != null) {
try { rfile.close(); } catch (IOException iox) {}
}
}
for (int i = 0; i < 1024; i++) {
int v = hdr[4*i] | hdr[4*i + 1] | hdr[4*i + 2] | hdr[4*i + 3];
if (v == 0) continue;
int xx = (x << 5) | (i & 0x1F);
int zz = (z << 5) | ((i >> 5) & 0x1F);
if (!map.setFlag(xx, zz, true)) {
cnt++;
}
}
}
}
return cnt;
}
}