mirror of
https://github.com/plexusorg/Plex-FAWE.git
synced 2024-11-15 17:03:33 +00:00
090052df5a
This will fix errors when trying to set blocks when using the wrong minecraft version. However, if users want support for schematics or copy/pasting blocks with advanced data (eg things not yet supported by Bukkit like mob spawner potentials or blocks from mods), they will have to use the WorldEdit version corresponding to their Minecraft version.
443 lines
16 KiB
Java
443 lines
16 KiB
Java
// $Id$
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/*
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* This file is a part of WorldEdit.
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* Copyright (c) sk89q <http://www.sk89q.com>
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* Copyright (c) the WorldEdit team and contributors
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*
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* This program is free software: you can redistribute it and/or modify it under the
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* terms of the GNU Lesser General Public License as published by the Free Software
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY
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* WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.sk89q.worldedit.bukkit;
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import java.lang.reflect.Field;
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import java.util.ArrayList;
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import java.util.Collection;
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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 java.util.logging.Logger;
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import net.minecraft.server.NBTBase;
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import net.minecraft.server.NBTTagByte;
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import net.minecraft.server.NBTTagByteArray;
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import net.minecraft.server.NBTTagCompound;
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import net.minecraft.server.NBTTagDouble;
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import net.minecraft.server.NBTTagEnd;
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import net.minecraft.server.NBTTagFloat;
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import net.minecraft.server.NBTTagInt;
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import net.minecraft.server.NBTTagIntArray;
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import net.minecraft.server.NBTTagList;
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import net.minecraft.server.NBTTagLong;
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import net.minecraft.server.NBTTagShort;
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import net.minecraft.server.NBTTagString;
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import net.minecraft.server.TileEntity;
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import org.bukkit.World;
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import org.bukkit.craftbukkit.CraftWorld;
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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.DoubleTag;
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import com.sk89q.jnbt.EndTag;
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import com.sk89q.jnbt.FloatTag;
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import com.sk89q.jnbt.IntArrayTag;
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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.LongTag;
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import com.sk89q.jnbt.NBTConstants;
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import com.sk89q.jnbt.ShortTag;
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import com.sk89q.jnbt.StringTag;
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import com.sk89q.jnbt.Tag;
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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.TileEntityBlock;
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import com.sk89q.worldedit.data.DataException;
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import com.sk89q.worldedit.foundation.Block;
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/**
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* A blind handler of blocks with TileEntity data that directly access Minecraft's
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* classes through CraftBukkit.
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* </p>
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* Usage of this class may break terribly in the future, and therefore usage should
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* be trapped in a handler for {@link Throwable}.
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*/
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class NmsBlock extends BaseBlock implements TileEntityBlock {
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private static final Logger logger = Logger.getLogger(NmsBlock.class.getCanonicalName());
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private static Field compoundMapField;
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private static final Field nmsBlock_isTileEntityField; // The field is deobfuscated but the method isn't. No idea why.
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private NBTTagCompound nbtData = null;
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static {
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Field field;
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try {
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field = net.minecraft.server.Block.class.getDeclaredField("isTileEntity");
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field.setAccessible(true);
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} catch (NoSuchFieldException e) {
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logger.severe("Could not find NMS block tile entity field!");
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field = null;
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}
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nmsBlock_isTileEntityField = field;
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}
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/**
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* Create a new instance with a given type ID, data value, and previous
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* {@link TileEntityBlock}-implementing object.
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*
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* @param type block type ID
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* @param data data value
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* @param tileEntityBlock tile entity block
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*/
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public NmsBlock(int type, int data, TileEntityBlock tileEntityBlock) {
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super(type, data);
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nbtData = (NBTTagCompound) fromNative(tileEntityBlock.getNbtData());
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}
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/**
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* Create a new instance with a given type ID, data value, and raw
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* {@link NBTTagCompound} copy.
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*
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* @param type block type ID
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* @param data data value
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* @param nbtData raw NBT data
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*/
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public NmsBlock(int type, int data, NBTTagCompound nbtData) {
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super(type, data);
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this.nbtData = nbtData;
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}
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/**
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* Build a {@link NBTTagCompound} that has valid coordinates.
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*
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* @param pt coordinates to set
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* @return the tag compound
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*/
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private NBTTagCompound getNmsData(Vector pt) {
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if (nbtData == null) {
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return null;
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}
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nbtData.set("x", new NBTTagInt("x", pt.getBlockX()));
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nbtData.set("y", new NBTTagInt("y", pt.getBlockY()));
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nbtData.set("z", new NBTTagInt("z", pt.getBlockZ()));
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return nbtData;
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}
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@Override
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public boolean hasNbtData() {
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return nbtData != null;
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}
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@Override
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public String getNbtId() {
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if (nbtData == null) {
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return "";
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}
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return nbtData.getString("id");
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}
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@Override
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public CompoundTag getNbtData() {
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if (nbtData == null) {
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return new CompoundTag(getNbtId(),
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new HashMap<String, Tag>());
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}
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return (CompoundTag) toNative(nbtData);
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}
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@Override
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public void setNbtData(CompoundTag tag) throws DataException {
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if (tag == null) {
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this.nbtData = null;
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}
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this.nbtData = (NBTTagCompound) fromNative(tag);
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}
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/**
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* Build an instance from the given information.
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*
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* @param world world to get the block from
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* @param position position to get the block at
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* @param type type ID of block
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* @param data data value of block
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* @return the block, or null
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*/
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public static NmsBlock get(World world, Vector position, int type, int data) {
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if (!hasTileEntity(type)) {
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return null;
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}
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TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
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position.getBlockX(), position.getBlockY(), position.getBlockZ());
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if (te != null) {
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NBTTagCompound tag = new NBTTagCompound();
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te.b(tag); // Load data
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return new NmsBlock(type, data, tag);
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}
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return null;
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}
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/**
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* Set an instance or a {@link TileEntityBlock} to the given position.
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*
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* @param world world to set the block in
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* @param position position to set the block at
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* @param block the block to set
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* @return true if tile entity data was copied to the world
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*/
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public static boolean set(World world, Vector position, BaseBlock block) {
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NBTTagCompound data = null;
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if (!hasTileEntity(world.getBlockTypeIdAt(position.getBlockX(), position.getBlockY(), position.getBlockZ()))) {
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return false;
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}
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if (block instanceof NmsBlock) {
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NmsBlock nmsProxyBlock = (NmsBlock) block;
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data = nmsProxyBlock.getNmsData(position);
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} else if (block instanceof TileEntityBlock) {
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NmsBlock nmsProxyBlock = new NmsBlock(
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block.getType(), block.getData(), block);
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data = nmsProxyBlock.getNmsData(position);
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}
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if (data != null) {
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TileEntity te = ((CraftWorld) world).getHandle().getTileEntity(
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position.getBlockX(), position.getBlockY(), position.getBlockZ());
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if (te != null) {
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te.a(data); // Load data
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return true;
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}
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}
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return false;
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}
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/**
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* Tries to set a block 'safely', as in setting the block data to the location, and
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* then triggering physics only at the end.
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*
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* @param world world to set the block in
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* @param position position to set the block at
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* @param block the block to set
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* @param notifyAdjacent true to notify physics and what not
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* @return true if block id or data was changed
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*/
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public static boolean setSafely(BukkitWorld world, Vector position,
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Block block, boolean notifyAdjacent) {
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int x = position.getBlockX();
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int y = position.getBlockY();
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int z = position.getBlockZ();
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CraftWorld craftWorld = ((CraftWorld) world.getWorld());
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boolean changed = craftWorld.getHandle().setRawTypeIdAndData(
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x, y, z, block.getId(), block.getData());
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if (block instanceof BaseBlock) {
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world.copyToWorld(position, (BaseBlock) block);
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}
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if (changed) {
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if (notifyAdjacent) {
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craftWorld.getHandle().update(x, y, z, block.getId());
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} else {
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craftWorld.getHandle().notify(x, y, z);
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}
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}
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return changed;
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}
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public static boolean hasTileEntity(int type) {
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net.minecraft.server.Block nmsBlock = getNmsBlock(type);
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if (nmsBlock == null) {
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return false;
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}
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try {
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return nmsBlock_isTileEntityField.getBoolean(nmsBlock); // Once we have the field stord, gets are fast
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} catch (IllegalAccessException e) {
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return false;
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}
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}
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public static net.minecraft.server.Block getNmsBlock(int type) {
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if (type < 0 || type >= net.minecraft.server.Block.byId.length) {
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return null;
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}
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return net.minecraft.server.Block.byId[type];
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}
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/**
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* Converts from a non-native NMS NBT structure to a native WorldEdit NBT
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* structure.
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*
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* @param foreign non-native NMS NBT structure
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* @return native WorldEdit NBT structure
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*/
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@SuppressWarnings("unchecked")
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private static Tag toNative(NBTBase foreign) {
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if (foreign == null) {
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return null;
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}
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if (foreign instanceof NBTTagCompound) {
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Map<String, Tag> values = new HashMap<String, Tag>();
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Collection<Object> foreignValues = null;
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if (compoundMapField == null) {
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try {
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// Method name may change!
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foreignValues = ((NBTTagCompound) foreign).c();
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} catch (Throwable t) {
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try {
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logger.warning("WorldEdit: Couldn't get NBTTagCompound.c(), " +
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"so we're going to try to get at the 'map' field directly from now on");
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if (compoundMapField == null) {
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compoundMapField = NBTTagCompound.class.getDeclaredField("map");
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compoundMapField.setAccessible(true);
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}
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} catch (Throwable e) {
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// Can't do much beyond this
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throw new RuntimeException(e);
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}
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}
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}
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if (compoundMapField != null) {
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try {
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foreignValues = ((HashMap<Object, Object>) compoundMapField.get(foreign)).values();
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} catch (Throwable e) {
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// Can't do much beyond this
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throw new RuntimeException(e);
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}
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}
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for (Object obj : foreignValues) {
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NBTBase base = (NBTBase) obj;
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values.put(base.getName(), toNative(base));
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}
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return new CompoundTag(foreign.getName(), values);
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} else if (foreign instanceof NBTTagByte) {
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return new ByteTag(foreign.getName(), ((NBTTagByte) foreign).data);
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} else if (foreign instanceof NBTTagByteArray) {
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return new ByteArrayTag(foreign.getName(),
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((NBTTagByteArray) foreign).data);
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} else if (foreign instanceof NBTTagDouble) {
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return new DoubleTag(foreign.getName(),
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((NBTTagDouble) foreign).data);
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} else if (foreign instanceof NBTTagFloat) {
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return new FloatTag(foreign.getName(), ((NBTTagFloat) foreign).data);
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} else if (foreign instanceof NBTTagInt) {
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return new IntTag(foreign.getName(), ((NBTTagInt) foreign).data);
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} else if (foreign instanceof NBTTagIntArray) {
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return new IntArrayTag(foreign.getName(),
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((NBTTagIntArray) foreign).data);
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} else if (foreign instanceof NBTTagList) {
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List<Tag> values = new ArrayList<Tag>();
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NBTTagList foreignList = (NBTTagList) foreign;
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int type = NBTConstants.TYPE_BYTE;
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for (int i = 0; i < foreignList.size(); i++) {
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NBTBase foreignTag = foreignList.get(i);
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values.add(toNative(foreignTag));
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type = foreignTag.getTypeId();
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}
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Class<? extends Tag> cls = NBTConstants.getClassFromType(type);
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return new ListTag(foreign.getName(), cls, values);
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} else if (foreign instanceof NBTTagLong) {
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return new LongTag(foreign.getName(), ((NBTTagLong) foreign).data);
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} else if (foreign instanceof NBTTagShort) {
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return new ShortTag(foreign.getName(), ((NBTTagShort) foreign).data);
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} else if (foreign instanceof NBTTagString) {
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return new StringTag(foreign.getName(),
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((NBTTagString) foreign).data);
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} else if (foreign instanceof NBTTagEnd) {
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return new EndTag();
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} else {
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throw new IllegalArgumentException("Don't know how to make native "
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+ foreign.getClass().getCanonicalName());
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}
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}
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/**
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* Converts a WorldEdit-native NBT structure to a NMS structure.
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*
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* @param foreign structure to convert
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* @return non-native structure
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*/
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private static NBTBase fromNative(Tag foreign) {
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if (foreign == null) {
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return null;
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}
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if (foreign instanceof CompoundTag) {
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NBTTagCompound tag = new NBTTagCompound(foreign.getName());
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for (Map.Entry<String, Tag> entry : ((CompoundTag) foreign)
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.getValue().entrySet()) {
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tag.set(entry.getKey(), fromNative(entry.getValue()));
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}
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return tag;
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} else if (foreign instanceof ByteTag) {
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return new NBTTagByte(foreign.getName(),
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((ByteTag) foreign).getValue());
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} else if (foreign instanceof ByteArrayTag) {
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return new NBTTagByteArray(foreign.getName(),
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((ByteArrayTag) foreign).getValue());
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} else if (foreign instanceof DoubleTag) {
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return new NBTTagDouble(foreign.getName(),
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((DoubleTag) foreign).getValue());
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} else if (foreign instanceof FloatTag) {
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return new NBTTagFloat(foreign.getName(),
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((FloatTag) foreign).getValue());
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} else if (foreign instanceof IntTag) {
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return new NBTTagInt(foreign.getName(),
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((IntTag) foreign).getValue());
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} else if (foreign instanceof IntArrayTag) {
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return new NBTTagIntArray(foreign.getName(),
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((IntArrayTag) foreign).getValue());
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} else if (foreign instanceof ListTag) {
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NBTTagList tag = new NBTTagList(foreign.getName());
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ListTag foreignList = (ListTag) foreign;
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for (Tag t : foreignList.getValue()) {
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tag.add(fromNative(t));
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}
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return tag;
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} else if (foreign instanceof LongTag) {
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return new NBTTagLong(foreign.getName(),
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((LongTag) foreign).getValue());
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} else if (foreign instanceof ShortTag) {
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return new NBTTagShort(foreign.getName(),
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((ShortTag) foreign).getValue());
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} else if (foreign instanceof StringTag) {
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return new NBTTagString(foreign.getName(),
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((StringTag) foreign).getValue());
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} else if (foreign instanceof EndTag) {
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return new NBTTagEnd();
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} else {
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throw new IllegalArgumentException("Don't know how to make NMS "
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+ foreign.getClass().getCanonicalName());
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}
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}
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public static boolean isValidBlockType(int type) throws NoClassDefFoundError {
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return type == 0 || (type >= 1 && type < net.minecraft.server.Block.byId.length
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&& net.minecraft.server.Block.byId[type] != null);
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}
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}
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