2018-09-02 01:35:26 +00:00
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/*
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* WorldEdit, a Minecraft world manipulation toolkit
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* Copyright (C) sk89q <http://www.sk89q.com>
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* Copyright (C) WorldEdit team and contributors
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*
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2020-08-25 01:31:47 +00:00
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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2018-09-02 01:35:26 +00:00
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* (at your option) any later version.
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*
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2020-08-25 01:31:47 +00:00
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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2018-09-02 01:35:26 +00:00
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*
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2020-08-25 01:31:47 +00:00
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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2018-09-02 01:35:26 +00:00
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*/
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package com.sk89q.worldedit.world.chunk;
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import com.sk89q.jnbt.CompoundTag;
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2018-12-23 16:19:33 +00:00
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import com.sk89q.worldedit.math.BlockVector3;
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2018-09-02 01:35:26 +00:00
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import com.sk89q.worldedit.registry.state.Property;
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2021-07-01 20:16:25 +00:00
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import com.sk89q.worldedit.util.nbt.BinaryTag;
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import com.sk89q.worldedit.util.nbt.BinaryTagTypes;
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import com.sk89q.worldedit.util.nbt.CompoundBinaryTag;
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import com.sk89q.worldedit.util.nbt.IntBinaryTag;
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import com.sk89q.worldedit.util.nbt.ListBinaryTag;
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2021-07-23 15:48:51 +00:00
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import com.fastasyncworldedit.core.util.NbtUtils;
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2018-09-02 01:35:26 +00:00
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import com.sk89q.worldedit.world.DataException;
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2018-08-10 10:29:06 +00:00
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import com.sk89q.worldedit.world.block.BaseBlock;
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2018-09-02 01:35:26 +00:00
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import com.sk89q.worldedit.world.block.BlockState;
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import com.sk89q.worldedit.world.block.BlockType;
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import com.sk89q.worldedit.world.block.BlockTypes;
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import com.sk89q.worldedit.world.storage.InvalidFormatException;
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import java.util.HashMap;
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import java.util.Map;
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2020-07-14 02:50:59 +00:00
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import javax.annotation.Nullable;
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2018-09-02 01:35:26 +00:00
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/**
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2020-07-04 01:44:19 +00:00
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* The chunk format for Minecraft 1.13 to 1.15
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2018-09-02 01:35:26 +00:00
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*/
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public class AnvilChunk13 implements Chunk {
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2021-07-23 15:48:51 +00:00
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//FAWE start - CBT > CT
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2021-07-01 20:16:25 +00:00
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private final CompoundBinaryTag rootTag;
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2021-07-23 15:48:51 +00:00
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//FAWE end
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private final BlockState[][] blocks;
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private final int rootX;
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private final int rootZ;
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2018-09-02 01:35:26 +00:00
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2021-07-01 20:16:25 +00:00
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private Map<BlockVector3, CompoundBinaryTag> tileEntities;
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2018-09-02 01:35:26 +00:00
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2021-07-23 15:48:51 +00:00
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//FAWE start
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2018-09-02 01:35:26 +00:00
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/**
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* Construct the chunk with a compound tag.
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2020-08-25 01:31:47 +00:00
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*
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2018-09-02 01:35:26 +00:00
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* @param tag the tag to read
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* @throws DataException on a data error
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2021-07-01 20:16:25 +00:00
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* @deprecated Use {@link #AnvilChunk13(CompoundBinaryTag)}
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2018-09-02 01:35:26 +00:00
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*/
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2021-07-01 20:16:25 +00:00
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@Deprecated
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2018-09-02 01:35:26 +00:00
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public AnvilChunk13(CompoundTag tag) throws DataException {
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2021-07-01 20:16:25 +00:00
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this(tag.asBinaryTag());
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}
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2021-07-23 15:48:51 +00:00
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//FAWE end
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2021-07-01 20:16:25 +00:00
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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 the tag to read
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* @throws DataException on a data error
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*/
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public AnvilChunk13(CompoundBinaryTag tag) throws DataException {
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2018-09-02 01:35:26 +00:00
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rootTag = tag;
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2021-07-01 20:16:25 +00:00
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rootX = NbtUtils.getChildTag(rootTag, "xPos", BinaryTagTypes.INT).value();
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rootZ = NbtUtils.getChildTag(rootTag, "zPos", BinaryTagTypes.INT).value();
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2018-09-02 01:35:26 +00:00
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blocks = new BlockState[16][];
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2021-07-23 15:48:51 +00:00
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//FAWE start - use *BinaryTag > *Tag
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2021-07-01 20:16:25 +00:00
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ListBinaryTag sections = NbtUtils.getChildTag(rootTag, "Sections", BinaryTagTypes.LIST);
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2018-09-02 01:35:26 +00:00
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2021-07-01 20:16:25 +00:00
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for (BinaryTag rawSectionTag : sections) {
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if (!(rawSectionTag instanceof CompoundBinaryTag)) {
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2018-09-02 01:35:26 +00:00
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continue;
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}
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2021-07-01 20:16:25 +00:00
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CompoundBinaryTag sectionTag = (CompoundBinaryTag) rawSectionTag;
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if (sectionTag.get("Y") == null) {
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2018-09-02 01:35:26 +00:00
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continue; // Empty section.
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}
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2021-07-01 20:16:25 +00:00
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int y = NbtUtils.getChildTag(sectionTag, "Y", BinaryTagTypes.BYTE).value();
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2018-09-02 01:35:26 +00:00
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if (y < 0 || y >= 16) {
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continue;
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}
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// parse palette
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2021-07-01 20:16:25 +00:00
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ListBinaryTag paletteEntries = sectionTag.getList("Palette", BinaryTagTypes.COMPOUND);
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2018-09-02 01:35:26 +00:00
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int paletteSize = paletteEntries.size();
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2019-07-06 00:46:48 +00:00
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if (paletteSize == 0) {
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continue;
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}
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2018-09-02 01:35:26 +00:00
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BlockState[] palette = new BlockState[paletteSize];
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for (int paletteEntryId = 0; paletteEntryId < paletteSize; paletteEntryId++) {
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2021-07-01 20:16:25 +00:00
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CompoundBinaryTag paletteEntry = (CompoundBinaryTag) paletteEntries.get(paletteEntryId);
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2018-09-02 01:35:26 +00:00
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BlockType type = BlockTypes.get(paletteEntry.getString("Name"));
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2019-07-06 00:46:48 +00:00
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if (type == null) {
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2018-09-02 01:35:26 +00:00
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throw new InvalidFormatException("Invalid block type: " + paletteEntry.getString("Name"));
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}
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BlockState blockState = type.getDefaultState();
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2021-07-01 20:16:25 +00:00
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if (paletteEntry.get("Properties") != null) {
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CompoundBinaryTag properties = NbtUtils.getChildTag(paletteEntry, "Properties", BinaryTagTypes.COMPOUND);
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2018-09-02 01:35:26 +00:00
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for (Property<?> property : blockState.getStates().keySet()) {
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2021-07-01 20:16:25 +00:00
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if (properties.get(property.getName()) != null) {
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2018-09-02 01:35:26 +00:00
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String value = properties.getString(property.getName());
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try {
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blockState = getBlockStateWith(blockState, property, value);
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} catch (IllegalArgumentException e) {
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throw new InvalidFormatException("Invalid block state for " + blockState.getBlockType().getId() + ", " + property.getName() + ": " + value);
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}
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}
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}
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}
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palette[paletteEntryId] = blockState;
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}
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2021-07-23 15:48:51 +00:00
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//FAWE end
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2018-09-02 01:35:26 +00:00
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// parse block states
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2021-07-01 20:16:25 +00:00
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long[] blockStatesSerialized = NbtUtils.getChildTag(sectionTag, "BlockStates", BinaryTagTypes.LONG_ARRAY).value();
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2019-07-06 00:46:48 +00:00
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2020-07-04 01:44:19 +00:00
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BlockState[] chunkSectionBlocks = new BlockState[16 * 16 * 16];
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2019-07-06 00:46:48 +00:00
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blocks[y] = chunkSectionBlocks;
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2020-07-04 01:44:19 +00:00
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readBlockStates(palette, blockStatesSerialized, chunkSectionBlocks);
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}
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}
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protected void readBlockStates(BlockState[] palette, long[] blockStatesSerialized, BlockState[] chunkSectionBlocks) throws InvalidFormatException {
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int paletteBits = 4;
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while ((1 << paletteBits) < palette.length) {
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++paletteBits;
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}
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int paletteMask = (1 << paletteBits) - 1;
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long currentSerializedValue = 0;
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int nextSerializedItem = 0;
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int remainingBits = 0;
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for (int blockPos = 0; blockPos < chunkSectionBlocks.length; blockPos++) {
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int localBlockId;
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if (remainingBits < paletteBits) {
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int bitsNextLong = paletteBits - remainingBits;
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localBlockId = (int) currentSerializedValue;
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if (nextSerializedItem >= blockStatesSerialized.length) {
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throw new InvalidFormatException("Too short block state table");
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2018-09-02 01:35:26 +00:00
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}
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2020-07-04 01:44:19 +00:00
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currentSerializedValue = blockStatesSerialized[nextSerializedItem++];
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localBlockId |= (currentSerializedValue & ((1 << bitsNextLong) - 1)) << remainingBits;
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currentSerializedValue >>>= bitsNextLong;
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remainingBits = 64 - bitsNextLong;
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} else {
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localBlockId = (int) (currentSerializedValue & paletteMask);
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currentSerializedValue >>>= paletteBits;
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remainingBits -= paletteBits;
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}
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if (localBlockId >= palette.length) {
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throw new InvalidFormatException("Invalid block state table entry: " + localBlockId);
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2018-09-02 01:35:26 +00:00
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}
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2020-07-04 01:44:19 +00:00
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chunkSectionBlocks[blockPos] = palette[localBlockId];
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2018-09-02 01:35:26 +00:00
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}
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}
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private <T> BlockState getBlockStateWith(BlockState source, Property<T> property, String value) {
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return source.with(property, property.getValueFor(value));
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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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private void populateTileEntities() throws DataException {
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2019-07-06 00:46:48 +00:00
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tileEntities = new HashMap<>();
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2021-07-01 20:16:25 +00:00
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if (rootTag.get("TileEntities") == null) {
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2019-05-31 15:20:02 +00:00
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return;
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}
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2021-07-23 15:48:51 +00:00
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//FAWE start - use *BinaryTag > *Tag
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2021-07-01 20:16:25 +00:00
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ListBinaryTag tags = NbtUtils.getChildTag(rootTag, "TileEntities", BinaryTagTypes.LIST);
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2018-09-02 01:35:26 +00:00
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2021-07-01 20:16:25 +00:00
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for (BinaryTag tag : tags) {
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if (!(tag instanceof CompoundBinaryTag)) {
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2018-09-02 01:35:26 +00:00
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throw new InvalidFormatException("CompoundTag expected in TileEntities");
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}
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2021-07-01 20:16:25 +00:00
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CompoundBinaryTag t = (CompoundBinaryTag) tag;
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2018-09-02 01:35:26 +00:00
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2021-07-01 20:16:25 +00:00
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int x = ((IntBinaryTag) t.get("x")).value();
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int y = ((IntBinaryTag) t.get("y")).value();
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int z = ((IntBinaryTag) t.get("z")).value();
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2018-09-02 01:35:26 +00:00
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2018-10-19 20:13:32 +00:00
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BlockVector3 vec = BlockVector3.at(x, y, z);
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2021-07-01 20:16:25 +00:00
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tileEntities.put(vec, t);
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2018-09-02 01:35:26 +00:00
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}
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2021-07-23 15:48:51 +00:00
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//FAWE end
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2018-09-02 01:35:26 +00:00
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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 position the position
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* @return the compound tag for that position, which may be null
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* @throws DataException thrown if there is a data error
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*/
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@Nullable
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2021-07-23 15:48:51 +00:00
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//FAWE start - use *BinaryTag > *Tag
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2021-07-01 20:16:25 +00:00
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private CompoundBinaryTag getBlockTileEntity(BlockVector3 position) throws DataException {
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2018-09-02 01:35:26 +00:00
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if (tileEntities == null) {
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populateTileEntities();
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}
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2021-07-01 20:16:25 +00:00
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CompoundBinaryTag values = tileEntities.get(position);
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2018-09-02 01:35:26 +00:00
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if (values == null) {
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return null;
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}
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2021-07-01 20:16:25 +00:00
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return values;
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2018-09-02 01:35:26 +00:00
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}
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@Override
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2018-12-27 00:39:10 +00:00
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public BaseBlock getBlock(BlockVector3 position) throws DataException {
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2018-12-23 16:19:33 +00:00
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int x = position.getX() - rootX * 16;
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int y = position.getY();
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int z = position.getZ() - rootZ * 16;
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2018-09-02 01:35:26 +00:00
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int section = y >> 4;
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int yIndex = y & 0x0F;
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if (section < 0 || section >= blocks.length) {
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throw new DataException("Chunk does not contain position " + position);
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}
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BlockState[] sectionBlocks = blocks[section];
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BlockState state = sectionBlocks != null ? sectionBlocks[(yIndex << 8) | (z << 4) | x] : BlockTypes.AIR.getDefaultState();
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2019-06-25 17:07:47 +00:00
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2021-07-01 20:16:25 +00:00
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CompoundBinaryTag tileEntity = getBlockTileEntity(position);
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2019-07-06 00:46:48 +00:00
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2020-01-02 21:30:44 +00:00
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if (tileEntity != null) {
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2019-04-05 14:12:57 +00:00
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return state.toBaseBlock(tileEntity);
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2018-09-07 17:11:56 +00:00
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}
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2018-12-27 00:39:10 +00:00
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return state.toBaseBlock();
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2018-09-02 01:35:26 +00:00
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}
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2021-07-23 15:48:51 +00:00
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//FAWE end
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2018-09-02 01:35:26 +00:00
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}
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