Plexus/Plex-FAWE
1
0
Fork 0
mirror of https://github.com/plexusorg/Plex-FAWE.git synced 2024-11-02 10:57:11 +00:00
Code Issues Packages Projects Releases Wiki Activity

Added support for 4096 ID blocks (theoretically) in snapshots.

Browse Source 
Also cleaned up the mess that was AnvilChunk's code.
This commit is contained in:
sk89q 2012-10-20 00:54:21 -07:00
parent e08e40bce8
commit 1fb69b06f7
1 changed files with 84 additions and 40 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

114
src/main/java/com/sk89q/worldedit/data/AnvilChunk.java
View File

@ -21,6 +21,7 @@ public class AnvilChunk implements Chunk {
private CompoundTag rootTag; private CompoundTag rootTag;
private byte[][] blocks; private byte[][] blocks;
private byte[][] blocksAdd;
private byte[][] data; private byte[][] data;
private int rootX; private int rootX;
private int rootZ; private int rootZ;
@ -32,41 +33,65 @@ public class AnvilChunk implements Chunk {
/** /**
* Construct the chunk with a compound tag. * Construct the chunk with a compound tag.
* *
* @param tag * @param world the world to construct the chunk for
* @throws DataException * @param tag the tag to read
* @throws DataException on a data error
*/ */
public AnvilChunk(LocalWorld world, CompoundTag tag) throws DataException { public AnvilChunk(LocalWorld world, CompoundTag tag) throws DataException {
rootTag = tag; rootTag = tag;
this.world = world; this.world = world;
rootX = NBTUtils.getChildTag( rootTag.getValue(), "xPos", IntTag.class).getValue(); rootX = NBTUtils.getChildTag(rootTag.getValue(), "xPos", IntTag.class).getValue();
rootZ = NBTUtils.getChildTag( rootTag.getValue(), "zPos", IntTag.class).getValue(); rootZ = NBTUtils.getChildTag(rootTag.getValue(), "zPos", IntTag.class).getValue();
blocks = new byte[16][16 * 16 * 16];
blocksAdd = new byte[16][16 * 16 * 8];
data = new byte[16][16 * 16 * 8];
blocks = new byte[16][16*16*16];
data = new byte[16][16*16*8];
List<Tag> sections = NBTUtils.getChildTag(rootTag.getValue(), "Sections", ListTag.class).getValue(); List<Tag> sections = NBTUtils.getChildTag(rootTag.getValue(), "Sections", ListTag.class).getValue();
for(Tag section : sections) {
if(!(section instanceof CompoundTag)) continue;
CompoundTag compoundsection = (CompoundTag) section;
if(!compoundsection.getValue().containsKey("Y")) continue; // Empty section.
int y = NBTUtils.getChildTag(compoundsection.getValue(), "Y", ByteTag.class).getValue();
if(y < 0 || y >= 16) continue;
blocks[y] = NBTUtils.getChildTag(compoundsection.getValue(), "Blocks", ByteArrayTag.class).getValue();
data[y] = NBTUtils.getChildTag(compoundsection.getValue(), "Data", ByteArrayTag.class).getValue();
}
int sectionsize = 16*16*16; for (Tag rawSectionTag : sections) {
for(int i = 0; i < blocks.length; i++) { if (!(rawSectionTag instanceof CompoundTag)) {
if (blocks[i].length != sectionsize) { continue;
throw new InvalidFormatException("Chunk blocks byte array expected " }
+ "to be " + sectionsize + " bytes; found " + blocks[i].length);
CompoundTag sectionTag = (CompoundTag) rawSectionTag;
if (!sectionTag.getValue().containsKey("Y")) {
continue; // Empty section.
}
int y = NBTUtils.getChildTag(sectionTag.getValue(), "Y", ByteTag.class).getValue();
if (y < 0 || y >= 16) {
continue;
}
blocks[y] = NBTUtils.getChildTag(sectionTag.getValue(),
"Blocks", ByteArrayTag.class).getValue();
data[y] = NBTUtils.getChildTag(sectionTag.getValue(), "Data",
ByteArrayTag.class).getValue();
// 4096 ID block support
if (sectionTag.getValue().containsKey("Add")) {
blocksAdd[y] = NBTUtils.getChildTag(sectionTag.getValue(),
"Add", ByteArrayTag.class).getValue();
} }
} }
for(int i = 0; i < data.length; i++) { int sectionsize = 16 * 16 * 16;
if (data[i].length != (sectionsize/2)) { for (int i = 0; i < blocks.length; i++) {
if (blocks[i].length != sectionsize) {
throw new InvalidFormatException(
"Chunk blocks byte array expected " + "to be "
+ sectionsize + " bytes; found "
+ blocks[i].length);
}
}
for (int i = 0; i < data.length; i++) {
if (data[i].length != (sectionsize / 2)) {
throw new InvalidFormatException("Chunk block data byte array " throw new InvalidFormatException("Chunk block data byte array "
+ "expected to be " + sectionsize + " bytes; found " + data[i].length); + "expected to be " + sectionsize + " bytes; found "
+ data[i].length);
} }
} }
} }
@ -78,14 +103,28 @@ public class AnvilChunk implements Chunk {
int z = pos.getBlockZ() - rootZ * 16; int z = pos.getBlockZ() - rootZ * 16;
int section = y >> 4; int section = y >> 4;
if(section < 0 || section >= blocks.length) throw new DataException("Chunk does not contain position " + pos); if (section < 0 || section >= blocks.length) {
int yindex = y & 0x0F; throw new DataException("Chunk does not contain position " + pos);
if(yindex < 0 || yindex >= 16) throw new DataException("Chunk does not contain position " + pos); }
int yindex = y & 0x0F;
if (yindex < 0 || yindex >= 16) {
throw new DataException("Chunk does not contain position " + pos);
}
int index = x + (z * 16 + (yindex * 16 * 16)); int index = x + (z * 16 + (yindex * 16 * 16));
try { try {
return blocks[section][index]; int addId = 0;
// 4 bits, so we have to divide by 2 and get the right 4 bits
if (index % 2 == 0) {
addId = (blocksAdd[section][index >> 2] >> 4) << 8;
} else {
addId = (blocksAdd[section][index >> 2] & 0xF) << 8;
}
return blocks[section][index] + addId;
} catch (IndexOutOfBoundsException e) { } catch (IndexOutOfBoundsException e) {
throw new DataException("Chunk does not contain position " + pos); throw new DataException("Chunk does not contain position " + pos);
} }
@ -98,12 +137,17 @@ public class AnvilChunk implements Chunk {
int z = pos.getBlockZ() - rootZ * 16; int z = pos.getBlockZ() - rootZ * 16;
int section = y >> 4; int section = y >> 4;
if(section < 0 || section >= blocks.length) throw new DataException("Chunk does not contain position " + pos); int yIndex = y & 0x0F;
int yindex = y & 0x0F;
if(yindex < 0 || yindex >= 16) throw new DataException("Chunk does not contain position " + pos);
if (section < 0 || section >= blocks.length) {
throw new DataException("Chunk does not contain position " + pos);
}
int index = x + (z * 16 + (yindex * 16 * 16)); if (yIndex < 0 || yIndex >= 16) {
throw new DataException("Chunk does not contain position " + pos);
}
int index = x + (z * 16 + (yIndex * 16 * 16));
boolean shift = index % 2 == 0; boolean shift = index % 2 == 0;
index /= 2; index /= 2;
@ -124,15 +168,15 @@ public class AnvilChunk implements Chunk {
* @throws DataException * @throws DataException
*/ */
private void populateTileEntities() throws DataException { private void populateTileEntities() throws DataException {
List<Tag> tags = NBTUtils.getChildTag( List<Tag> tags = NBTUtils.getChildTag(rootTag.getValue(),
rootTag.getValue(), "TileEntities", ListTag.class) "TileEntities", ListTag.class).getValue();
.getValue();
tileEntities = new HashMap<BlockVector, Map<String, Tag>>(); tileEntities = new HashMap<BlockVector, Map<String, Tag>>();
for (Tag tag : tags) { for (Tag tag : tags) {
if (!(tag instanceof CompoundTag)) { if (!(tag instanceof CompoundTag)) {
throw new InvalidFormatException("CompoundTag expected in TileEntities"); throw new InvalidFormatException(
"CompoundTag expected in TileEntities");
} }
CompoundTag t = (CompoundTag) tag; CompoundTag t = (CompoundTag) tag;