mirror of
https://github.com/plexusorg/Plex-FAWE.git
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8aabfb0c67
- Added 'Chunk' Interface. - Moved old 'Chunk' to 'OldChunk' and replaced dynamic world height reference with '128. - Added 'AnvilChunk' implementing the new anvil chunk format. - Added temp fixes to FileMcRegionChunkStore.java, TrueZipMcRegionChunkStore.java and ZippedMcRegionChunkStore.java too allow them to read .mca files. - Added the new 'IntArrayTag' since the new heightmap tag wasn't recognized. - Moved 'getChildTag' to 'NBTUtils'.
224 lines
7.9 KiB
Java
224 lines
7.9 KiB
Java
package com.sk89q.worldedit.data;
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import java.util.HashMap;
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import java.util.List;
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import java.util.Map;
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import com.sk89q.jnbt.ByteArrayTag;
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import com.sk89q.jnbt.ByteTag;
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import com.sk89q.jnbt.CompoundTag;
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import com.sk89q.jnbt.IntTag;
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import com.sk89q.jnbt.ListTag;
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import com.sk89q.jnbt.NBTUtils;
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import com.sk89q.jnbt.Tag;
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import com.sk89q.worldedit.BlockVector;
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import com.sk89q.worldedit.LocalWorld;
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import com.sk89q.worldedit.Vector;
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import com.sk89q.worldedit.blocks.BaseBlock;
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import com.sk89q.worldedit.blocks.BlockID;
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import com.sk89q.worldedit.blocks.ChestBlock;
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import com.sk89q.worldedit.blocks.DispenserBlock;
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import com.sk89q.worldedit.blocks.FurnaceBlock;
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import com.sk89q.worldedit.blocks.MobSpawnerBlock;
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import com.sk89q.worldedit.blocks.NoteBlock;
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import com.sk89q.worldedit.blocks.SignBlock;
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import com.sk89q.worldedit.blocks.TileEntityBlock;
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public class AnvilChunk implements Chunk {
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private CompoundTag rootTag;
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private byte[][] blocks;
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private byte[][] data;
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private int rootX;
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private int rootZ;
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private Map<BlockVector, Map<String,Tag>> tileEntities;
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@SuppressWarnings("unused")
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private LocalWorld world; // TODO: remove if stays unused.
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/**
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* Construct the chunk with a compound tag.
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*
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* @param tag
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* @throws DataException
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*/
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public AnvilChunk(LocalWorld world, CompoundTag tag) throws DataException {
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rootTag = tag;
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this.world = world;
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rootX = NBTUtils.getChildTag( rootTag.getValue(), "xPos", IntTag.class).getValue();
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rootZ = NBTUtils.getChildTag( rootTag.getValue(), "zPos", IntTag.class).getValue();
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blocks = new byte[16][16*16*16];
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data = new byte[16][16*16*8];
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List<Tag> sections = NBTUtils.getChildTag(rootTag.getValue(), "Sections", ListTag.class).getValue();
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for(Tag section : sections) {
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if(!(section instanceof CompoundTag)) continue;
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CompoundTag compoundsection = (CompoundTag) section;
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if(!compoundsection.getValue().containsKey("Y")) continue; // Empty section.
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int y = NBTUtils.getChildTag(compoundsection.getValue(), "Y", ByteTag.class).getValue();
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if(y < 0 || y >= 16) continue;
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blocks[y] = NBTUtils.getChildTag(compoundsection.getValue(), "Blocks", ByteArrayTag.class).getValue();
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data[y] = NBTUtils.getChildTag(compoundsection.getValue(), "Data", ByteArrayTag.class).getValue();
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}
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int sectionsize = 16*16*16;
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for(int i = 0; i < blocks.length; i++) {
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if (blocks[i].length != sectionsize) {
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throw new InvalidFormatException("Chunk blocks byte array expected "
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+ "to be " + sectionsize + " bytes; found " + blocks[i].length);
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}
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}
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for(int i = 0; i < data.length; i++) {
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if (data[i].length != (sectionsize/2)) {
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throw new InvalidFormatException("Chunk block data byte array "
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+ "expected to be " + sectionsize + " bytes; found " + data[i].length);
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}
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}
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}
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@Override
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public int getBlockID(Vector pos) throws DataException {
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int x = pos.getBlockX() - rootX * 16;
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int y = pos.getBlockY();
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int z = pos.getBlockZ() - rootZ * 16;
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int section = y >> 4;
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if(section < 0 || section >= blocks.length) throw new DataException("Chunk does not contain position " + pos);
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int yindex = y & 0x0F;
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if(yindex < 0 || yindex >= 16) throw new DataException("Chunk does not contain position " + pos);
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int index = x + (z * 16 + (yindex * 16 * 16));
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try {
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return blocks[section][index];
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} catch (IndexOutOfBoundsException e) {
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throw new DataException("Chunk does not contain position " + pos);
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}
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}
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@Override
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public int getBlockData(Vector pos) throws DataException {
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int x = pos.getBlockX() - rootX * 16;
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int y = pos.getBlockY();
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int z = pos.getBlockZ() - rootZ * 16;
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int section = y >> 4;
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if(section < 0 || section >= blocks.length) throw new DataException("Chunk does not contain position " + pos);
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int yindex = y & 0x0F;
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if(yindex < 0 || yindex >= 16) throw new DataException("Chunk does not contain position " + pos);
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int index = x + (z * 16 + (yindex * 16 * 16));
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boolean shift = index % 2 == 0;
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index /= 2;
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try {
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if (!shift) {
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return (data[section][index] & 0xF0) >> 4;
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} else {
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return data[section][index] & 0xF;
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}
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} catch (IndexOutOfBoundsException e) {
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throw new DataException("Chunk does not contain position " + pos);
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}
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}
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/**
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* Used to load the tile entities.
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*
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* @throws DataException
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*/
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private void populateTileEntities() throws DataException {
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List<Tag> tags = NBTUtils.getChildTag(
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rootTag.getValue(), "TileEntities", ListTag.class)
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.getValue();
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tileEntities = new HashMap<BlockVector, Map<String, Tag>>();
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for (Tag tag : tags) {
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if (!(tag instanceof CompoundTag)) {
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throw new InvalidFormatException("CompoundTag expected in TileEntities");
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}
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CompoundTag t = (CompoundTag) tag;
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int x = 0;
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int y = 0;
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int z = 0;
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Map<String, Tag> values = new HashMap<String, Tag>();
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for (Map.Entry<String, Tag> entry : t.getValue().entrySet()) {
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if (entry.getKey().equals("x")) {
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if (entry.getValue() instanceof IntTag) {
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x = ((IntTag) entry.getValue()).getValue();
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}
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} else if (entry.getKey().equals("y")) {
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if (entry.getValue() instanceof IntTag) {
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y = ((IntTag) entry.getValue()).getValue();
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}
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} else if (entry.getKey().equals("z")) {
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if (entry.getValue() instanceof IntTag) {
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z = ((IntTag) entry.getValue()).getValue();
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}
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}
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values.put(entry.getKey(), entry.getValue());
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}
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BlockVector vec = new BlockVector(x, y, z);
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tileEntities.put(vec, values);
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}
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}
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/**
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* Get the map of tags keyed to strings for a block's tile entity data. May
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* return null if there is no tile entity data. Not public yet because
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* what this function returns isn't ideal for usage.
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*
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* @param pos
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* @return
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* @throws DataException
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*/
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private Map<String, Tag> getBlockTileEntity(Vector pos) throws DataException {
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if (tileEntities == null) {
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populateTileEntities();
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}
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return tileEntities.get(new BlockVector(pos));
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}
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@Override
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public BaseBlock getBlock(Vector pos) throws DataException {
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int id = getBlockID(pos);
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int data = getBlockData(pos);
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BaseBlock block;
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if (id == BlockID.WALL_SIGN || id == BlockID.SIGN_POST) {
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block = new SignBlock(id, data);
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} else if (id == BlockID.CHEST) {
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block = new ChestBlock(data);
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} else if (id == BlockID.FURNACE || id == BlockID.BURNING_FURNACE) {
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block = new FurnaceBlock(id, data);
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} else if (id == BlockID.DISPENSER) {
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block = new DispenserBlock(data);
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} else if (id == BlockID.MOB_SPAWNER) {
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block = new MobSpawnerBlock(data);
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} else if (id == BlockID.NOTE_BLOCK) {
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block = new NoteBlock(data);
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} else {
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block = new BaseBlock(id, data);
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}
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if (block instanceof TileEntityBlock) {
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Map<String, Tag> tileEntity = getBlockTileEntity(pos);
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((TileEntityBlock) block).fromTileEntityNBT(tileEntity);
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}
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return block;
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}
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}
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