private static List<Chunk> loadChunks(String arg) throws Exception {
File region = new File(arg, "region");
final List<Chunk> chunks = new ArrayList<>();
for (File file : region.listFiles()) {
if (file.getName().endsWith(".mca")) {
final Point offset = parseMcaFileName(file.getName());
try (RegionFile rf = new RegionFile(file)) {
for (int z = 0; z < 32; z++) {
for (int x = 0; x < 32; x++) {
if (rf.hasChunk(x, z)) {
try (NBTStreamReader sr = rf.getChunk(x, z)) {
final int xx = x;
final int zz = z;
new NBTWalker(sr) {
boolean inSections;
byte y;
byte[] blocks;
@Override
public boolean value(String name, byte value) throws Exception {
if ("Y".equals(name)) {
y = value;
}
return super.value(name, value);
}
@Override
public boolean value(String name, byte[] value) throws Exception {
if ("Blocks".equals(name)) {
blocks = value;
}
return true;
}
@Override
public boolean list(String name, int length) throws Exception {
inSections = "Sections".equals(name);
super.list(name, length);
return !inSections;
}
@Override
public boolean compound(String name) throws Exception {
if (!super.compound(name)) {
return false;
}
if (inSections) {
chunks.add(
new Chunk(
new Vector(offset.getX() * 32 + xx, y, offset.getY() * 32 + zz),
blocks));
}
return true;
}
};
}
}
}
}
}
}
}
return chunks;
}
