mirror/WorldEdit
2
0
Fork 0
mirror of https://github.com/EngineHub/WorldEdit.git synced 2024-12-27 05:00:08 +08:00
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

124
src/main/java/com/sk89q/worldedit/data/AnvilChunk.java
View File

@ -21,6 +21,7 @@ public class AnvilChunk implements Chunk {
private CompoundTag rootTag;
private byte[][] blocks;
private byte[][] blocksAdd;
private byte[][] data;
private int rootX;
private int rootZ;
@ -31,42 +32,66 @@ public class AnvilChunk implements Chunk {
/**
* Construct the chunk with a compound tag.
*
* @param tag
* @throws DataException
*
* @param world the world to construct the chunk for
* @param tag the tag to read
* @throws DataException on a data error
*/
public AnvilChunk(LocalWorld world, CompoundTag tag) throws DataException {
rootTag = tag;
this.world = world;
rootX = NBTUtils.getChildTag( rootTag.getValue(), "xPos", IntTag.class).getValue();
rootZ = NBTUtils.getChildTag( rootTag.getValue(), "zPos", IntTag.class).getValue();
rootX = NBTUtils.getChildTag(rootTag.getValue(), "xPos", IntTag.class).getValue();
rootZ = NBTUtils.getChildTag(rootTag.getValue(), "zPos", IntTag.class).getValue();
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();
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();
}
blocks = new byte[16][16 * 16 * 16];
blocksAdd = new byte[16][16 * 16 * 8];
data = new byte[16][16 * 16 * 8];
int sectionsize = 16*16*16;
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);
List<Tag> sections = NBTUtils.getChildTag(rootTag.getValue(), "Sections", ListTag.class).getValue();
for (Tag rawSectionTag : sections) {
if (!(rawSectionTag instanceof CompoundTag)) {
continue;
}
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++) {
if (data[i].length != (sectionsize/2)) {
int sectionsize = 16 * 16 * 16;
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 "
+ "expected to be " + sectionsize + " bytes; found " + data[i].length);
+ "expected to be " + sectionsize + " bytes; found "
+ data[i].length);
}
}
}
@ -76,16 +101,30 @@ public int getBlockID(Vector pos) throws DataException {
int x = pos.getBlockX() - rootX * 16;
int y = pos.getBlockY();
int z = pos.getBlockZ() - rootZ * 16;
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) {
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);
if (yindex < 0 || yindex >= 16) {
throw new DataException("Chunk does not contain position " + pos);
}
int index = x + (z * 16 + (yindex * 16 * 16));
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) {
throw new DataException("Chunk does not contain position " + pos);
}
@ -96,14 +135,19 @@ public int getBlockData(Vector pos) throws DataException {
int x = pos.getBlockX() - rootX * 16;
int y = pos.getBlockY();
int z = pos.getBlockZ() - rootZ * 16;
int section = y >> 4;
if(section < 0 || section >= blocks.length) 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 yIndex = y & 0x0F;
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;
index /= 2;
@ -124,15 +168,15 @@ public int getBlockData(Vector pos) throws DataException {
* @throws DataException
*/
private void populateTileEntities() throws DataException {
List<Tag> tags = NBTUtils.getChildTag(
rootTag.getValue(), "TileEntities", ListTag.class)
.getValue();
List<Tag> tags = NBTUtils.getChildTag(rootTag.getValue(),
"TileEntities", ListTag.class).getValue();
tileEntities = new HashMap<BlockVector, Map<String, Tag>>();
for (Tag tag : tags) {
if (!(tag instanceof CompoundTag)) {
throw new InvalidFormatException("CompoundTag expected in TileEntities");
throw new InvalidFormatException(
"CompoundTag expected in TileEntities");
}
CompoundTag t = (CompoundTag) tag;