Mirror von
https://github.com/IntellectualSites/FastAsyncWorldEdit.git
synchronisiert 2024-09-16 04:51:22 +02:00
Merge pull request #430 from sk89q/feature/chunk-batching-mode
Chunk Batching
Dieser Commit ist enthalten in:
Matthew Miller
GitHub
Commit
dd2fcbac23
@ -269,7 +269,7 @@ public class WorldEditPlugin extends JavaPlugin implements TabCompleter {
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EditSession editSession = WorldEdit.getInstance().getEditSessionFactory()
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.getEditSession(wePlayer.getWorld(), session.getBlockChangeLimit(), blockBag, wePlayer);
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editSession.enableQueue();
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editSession.enableStandardMode();
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return editSession;
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}
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@ -38,6 +38,7 @@ import com.sk89q.worldedit.extent.buffer.ForgetfulExtentBuffer;
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import com.sk89q.worldedit.extent.cache.LastAccessExtentCache;
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import com.sk89q.worldedit.extent.inventory.BlockBag;
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import com.sk89q.worldedit.extent.inventory.BlockBagExtent;
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import com.sk89q.worldedit.extent.reorder.ChunkBatchingExtent;
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import com.sk89q.worldedit.extent.reorder.MultiStageReorder;
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import com.sk89q.worldedit.extent.validation.BlockChangeLimiter;
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import com.sk89q.worldedit.extent.validation.DataValidatorExtent;
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@ -153,6 +154,7 @@ public class EditSession implements Extent {
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private @Nullable FastModeExtent fastModeExtent;
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private final SurvivalModeExtent survivalExtent;
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private @Nullable ChunkBatchingExtent chunkBatchingExtent;
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private @Nullable ChunkLoadingExtent chunkLoadingExtent;
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private @Nullable LastAccessExtentCache cacheExtent;
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private @Nullable BlockQuirkExtent quirkExtent;
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@ -200,6 +202,7 @@ public class EditSession implements Extent {
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// This extent can be skipped by calling rawSetBlock()
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extent = reorderExtent = new MultiStageReorder(extent, false);
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extent = chunkBatchingExtent = new ChunkBatchingExtent(extent);
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extent = wrapExtent(extent, eventBus, event, Stage.BEFORE_REORDER);
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// These extents can be skipped by calling smartSetBlock()
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@ -231,6 +234,16 @@ public class EditSession implements Extent {
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return event.getExtent();
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}
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/**
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* Turns on specific features for a normal WorldEdit session, such as
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* {@link #enableQueue() queuing} and {@link #setBatchingChunks(boolean)
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* chunk batching}.
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*/
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public void enableStandardMode() {
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enableQueue();
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setBatchingChunks(true);
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}
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/**
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* Get the world.
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*
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@ -380,6 +393,23 @@ public class EditSession implements Extent {
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return blockBagExtent.popMissing();
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}
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public boolean isBatchingChunks() {
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return chunkBatchingExtent != null && chunkBatchingExtent.isEnabled();
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}
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public void setBatchingChunks(boolean batchingChunks) {
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if (chunkBatchingExtent == null) {
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if (batchingChunks) {
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throw new UnsupportedOperationException("Chunk batching not supported by this session.");
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}
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return;
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}
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if (!batchingChunks) {
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flushQueue();
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}
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chunkBatchingExtent.setEnabled(batchingChunks);
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}
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/**
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* Get the number of blocks changed, including repeated block changes.
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*
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@ -226,7 +226,7 @@ public class LocalSession {
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EditSession editSession = history.get(historyPointer);
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EditSession newEditSession = WorldEdit.getInstance().getEditSessionFactory()
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.getEditSession(editSession.getWorld(), -1, newBlockBag, player);
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newEditSession.enableQueue();
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newEditSession.enableStandardMode();
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newEditSession.setFastMode(fastMode);
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editSession.undo(newEditSession);
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return editSession;
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@ -249,7 +249,7 @@ public class LocalSession {
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EditSession editSession = history.get(historyPointer);
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EditSession newEditSession = WorldEdit.getInstance().getEditSessionFactory()
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.getEditSession(editSession.getWorld(), -1, newBlockBag, player);
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newEditSession.enableQueue();
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newEditSession.enableStandardMode();
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newEditSession.setFastMode(fastMode);
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editSession.redo(newEditSession);
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++historyPointer;
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@ -19,12 +19,37 @@
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package com.sk89q.worldedit;
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import com.google.common.collect.ComparisonChain;
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import com.sk89q.worldedit.math.transform.AffineTransform;
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import java.util.Comparator;
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/**
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* An immutable 2-dimensional vector.
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*/
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public class Vector2D {
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/**
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* A comparator for Vector2Ds that orders the vectors by rows, with x as the
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* column and z as the row.
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*
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* For example, if x is the horizontal axis and z is the vertical axis, it
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* sorts like so:
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*
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* <pre>
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* 0123
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* 4567
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* 90ab
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* cdef
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* </pre>
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*/
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public static final Comparator<Vector2D> COMPARING_GRID_ARRANGEMENT = (a, b) -> {
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return ComparisonChain.start()
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.compare(a.getBlockZ(), b.getBlockZ())
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.compare(a.getBlockX(), b.getBlockX())
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.result();
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};
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public static final Vector2D ZERO = new Vector2D(0, 0);
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public static final Vector2D UNIT_X = new Vector2D(1, 0);
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public static final Vector2D UNIT_Z = new Vector2D(0, 1);
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@ -72,7 +72,7 @@ public class SelectionCommand extends SimpleCommand<Operation> {
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Region selection = session.getSelection(player.getWorld());
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EditSession editSession = session.createEditSession(player);
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editSession.enableQueue();
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editSession.enableStandardMode();
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locals.put(EditSession.class, editSession);
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session.tellVersion(player);
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@ -0,0 +1,119 @@
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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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* This program is free software: you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by the
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* Free Software Foundation, either version 3 of the License, or
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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
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
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* for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package com.sk89q.worldedit.extent.reorder;
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import com.sk89q.worldedit.BlockVector2D;
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import com.sk89q.worldedit.Vector;
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import com.sk89q.worldedit.Vector2D;
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import com.sk89q.worldedit.WorldEditException;
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import com.sk89q.worldedit.extent.AbstractDelegateExtent;
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import com.sk89q.worldedit.extent.Extent;
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import com.sk89q.worldedit.function.operation.Operation;
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import com.sk89q.worldedit.function.operation.RunContext;
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import com.sk89q.worldedit.function.operation.SetLocatedBlocks;
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import com.sk89q.worldedit.util.collection.LocatedBlockList;
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import com.sk89q.worldedit.world.block.BlockStateHolder;
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import java.util.Comparator;
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import java.util.Iterator;
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import java.util.List;
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import java.util.SortedMap;
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import java.util.TreeMap;
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/**
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* A special extent that batches changes into Minecraft chunks. This helps
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* improve the speed of setting the blocks, since chunks do not need to be
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* loaded repeatedly, however it does take more memory due to caching the
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* blocks.
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*/
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public class ChunkBatchingExtent extends AbstractDelegateExtent {
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/**
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* Comparator optimized for sorting chunks by the region file they reside
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* in. This allows for file caches to be used while loading the chunk.
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*/
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private static final Comparator<Vector2D> REGION_OPTIMIZED_SORT =
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Comparator.<Vector2D, Vector2D>comparing(vec -> vec.divide(32).floor(), Vector2D.COMPARING_GRID_ARRANGEMENT)
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.thenComparing(Vector2D.COMPARING_GRID_ARRANGEMENT);
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private final SortedMap<BlockVector2D, LocatedBlockList> batches = new TreeMap<>(REGION_OPTIMIZED_SORT);
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private boolean enabled;
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public ChunkBatchingExtent(Extent extent) {
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this(extent, true);
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}
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public ChunkBatchingExtent(Extent extent, boolean enabled) {
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super(extent);
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this.enabled = enabled;
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}
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public boolean isEnabled() {
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return enabled;
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}
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public void setEnabled(boolean enabled) {
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this.enabled = enabled;
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}
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@Override
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public boolean setBlock(Vector location, BlockStateHolder block) throws WorldEditException {
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if (!enabled) {
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return getExtent().setBlock(location, block);
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}
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BlockVector2D chunkPos = new BlockVector2D(location.getBlockX() >> 4, location.getBlockZ() >> 4);
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batches.computeIfAbsent(chunkPos, k -> new LocatedBlockList()).add(location, block);
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return true;
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}
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@Override
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protected Operation commitBefore() {
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if (!enabled) {
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return null;
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}
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return new Operation() {
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// we get modified between create/resume -- only create this on resume to prevent CME
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private Iterator<LocatedBlockList> batchIterator;
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@Override
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public Operation resume(RunContext run) throws WorldEditException {
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if (batchIterator == null) {
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batchIterator = batches.values().iterator();
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}
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if (!batchIterator.hasNext()) {
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return null;
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}
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new SetLocatedBlocks(getExtent(), batchIterator.next()).resume(run);
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batchIterator.remove();
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return this;
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}
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@Override
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public void cancel() {
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}
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@Override
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public void addStatusMessages(List<String> messages) {
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}
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};
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}
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}
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@ -19,19 +19,20 @@
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package com.sk89q.worldedit.extent.reorder;
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import com.google.common.collect.Iterators;
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import com.google.common.collect.Iterables;
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import com.sk89q.worldedit.BlockVector;
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import com.sk89q.worldedit.Vector;
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import com.sk89q.worldedit.WorldEditException;
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import com.sk89q.worldedit.blocks.Blocks;
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import com.sk89q.worldedit.extent.AbstractDelegateExtent;
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import com.sk89q.worldedit.extent.Extent;
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import com.sk89q.worldedit.function.operation.BlockMapEntryPlacer;
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import com.sk89q.worldedit.function.operation.Operation;
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import com.sk89q.worldedit.function.operation.OperationQueue;
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import com.sk89q.worldedit.function.operation.RunContext;
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import com.sk89q.worldedit.function.operation.SetLocatedBlocks;
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import com.sk89q.worldedit.registry.state.Property;
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import com.sk89q.worldedit.util.collection.TupleArrayList;
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import com.sk89q.worldedit.util.LocatedBlock;
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import com.sk89q.worldedit.util.collection.LocatedBlockList;
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import com.sk89q.worldedit.world.block.BlockCategories;
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import com.sk89q.worldedit.world.block.BlockState;
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import com.sk89q.worldedit.world.block.BlockStateHolder;
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@ -50,9 +51,9 @@ import java.util.Set;
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*/
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public class MultiStageReorder extends AbstractDelegateExtent implements ReorderingExtent {
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private TupleArrayList<BlockVector, BlockStateHolder> stage1 = new TupleArrayList<>();
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private TupleArrayList<BlockVector, BlockStateHolder> stage2 = new TupleArrayList<>();
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private TupleArrayList<BlockVector, BlockStateHolder> stage3 = new TupleArrayList<>();
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private LocatedBlockList stage1 = new LocatedBlockList();
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private LocatedBlockList stage2 = new LocatedBlockList();
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private LocatedBlockList stage3 = new LocatedBlockList();
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private boolean enabled;
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/**
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@ -103,18 +104,18 @@ public class MultiStageReorder extends AbstractDelegateExtent implements Reorder
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if (Blocks.shouldPlaceLast(block.getBlockType())) {
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// Place torches, etc. last
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stage2.put(location.toBlockVector(), block);
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stage2.add(location.toBlockVector(), block);
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return !existing.equalsFuzzy(block);
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} else if (Blocks.shouldPlaceFinal(block.getBlockType())) {
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// Place signs, reed, etc even later
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stage3.put(location.toBlockVector(), block);
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stage3.add(location.toBlockVector(), block);
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return !existing.equalsFuzzy(block);
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} else if (Blocks.shouldPlaceLast(existing.getBlockType())) {
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// Destroy torches, etc. first
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super.setBlock(location, BlockTypes.AIR.getDefaultState());
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return super.setBlock(location, block);
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} else {
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stage1.put(location.toBlockVector(), block);
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stage1.add(location.toBlockVector(), block);
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return !existing.equalsFuzzy(block);
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}
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}
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@ -122,9 +123,9 @@ public class MultiStageReorder extends AbstractDelegateExtent implements Reorder
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@Override
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public Operation commitBefore() {
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return new OperationQueue(
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new BlockMapEntryPlacer(
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new SetLocatedBlocks(
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getExtent(),
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Iterators.concat(stage1.iterator(), stage2.iterator())),
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Iterables.concat(stage1, stage2)),
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new Stage3Committer());
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}
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@ -136,10 +137,10 @@ public class MultiStageReorder extends AbstractDelegateExtent implements Reorder
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final Set<BlockVector> blocks = new HashSet<>();
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final Map<BlockVector, BlockStateHolder> blockTypes = new HashMap<>();
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for (Map.Entry<BlockVector, BlockStateHolder> entry : stage3) {
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final BlockVector pt = entry.getKey();
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for (LocatedBlock entry : stage3) {
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final BlockVector pt = entry.getLocation().toBlockVector();
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blocks.add(pt);
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blockTypes.put(pt, entry.getValue());
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blockTypes.put(pt, entry.getBlock());
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}
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while (!blocks.isEmpty()) {
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@ -21,45 +21,27 @@ package com.sk89q.worldedit.function.operation;
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import static com.google.common.base.Preconditions.checkNotNull;
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import com.sk89q.worldedit.BlockVector;
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import com.sk89q.worldedit.WorldEditException;
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import com.sk89q.worldedit.world.block.BaseBlock;
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import com.sk89q.worldedit.extent.Extent;
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import com.sk89q.worldedit.world.block.BlockStateHolder;
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import com.sk89q.worldedit.util.LocatedBlock;
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import java.util.Iterator;
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import java.util.List;
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import java.util.Map;
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/**
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* Sets block from an iterator of {@link Map.Entry} containing a
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* {@link BlockVector} as the key and a {@link BaseBlock} as the value.
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*/
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public class BlockMapEntryPlacer implements Operation {
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public class SetLocatedBlocks implements Operation {
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private final Extent extent;
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private final Iterator<Map.Entry<BlockVector, BlockStateHolder>> iterator;
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private final Iterable<LocatedBlock> blocks;
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/**
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* Create a new instance.
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*
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* @param extent the extent to set the blocks on
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* @param iterator the iterator
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*/
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public BlockMapEntryPlacer(Extent extent, Iterator<Map.Entry<BlockVector, BlockStateHolder>> iterator) {
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checkNotNull(extent);
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checkNotNull(iterator);
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this.extent = extent;
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this.iterator = iterator;
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public SetLocatedBlocks(Extent extent, Iterable<LocatedBlock> blocks) {
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this.extent = checkNotNull(extent);
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this.blocks = checkNotNull(blocks);
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}
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|
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@Override
|
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public Operation resume(RunContext run) throws WorldEditException {
|
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while (iterator.hasNext()) {
|
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Map.Entry<BlockVector, BlockStateHolder> entry = iterator.next();
|
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extent.setBlock(entry.getKey(), entry.getValue());
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for (LocatedBlock block : blocks) {
|
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extent.setBlock(block.getLocation(), block.getBlock());
|
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}
|
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|
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return null;
|
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}
|
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@ -20,15 +20,13 @@
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package com.sk89q.worldedit.history.changeset;
|
||||
|
||||
import static com.google.common.base.Preconditions.checkNotNull;
|
||||
import static java.util.Map.Entry;
|
||||
|
||||
import com.google.common.base.Function;
|
||||
import com.google.common.collect.Iterators;
|
||||
import com.sk89q.worldedit.BlockVector;
|
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import com.sk89q.worldedit.history.change.BlockChange;
|
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import com.sk89q.worldedit.history.change.Change;
|
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import com.sk89q.worldedit.util.collection.TupleArrayList;
|
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import com.sk89q.worldedit.world.block.BlockStateHolder;
|
||||
import com.sk89q.worldedit.util.LocatedBlock;
|
||||
import com.sk89q.worldedit.util.collection.LocatedBlockList;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Iterator;
|
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@ -43,8 +41,12 @@ import java.util.Iterator;
|
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*/
|
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public class BlockOptimizedHistory extends ArrayListHistory {
|
||||
|
||||
private final TupleArrayList<BlockVector, BlockStateHolder> previous = new TupleArrayList<>();
|
||||
private final TupleArrayList<BlockVector, BlockStateHolder> current = new TupleArrayList<>();
|
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private static Change createChange(LocatedBlock block) {
|
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return new BlockChange(block.getLocation().toBlockPoint(), block.getBlock(), block.getBlock());
|
||||
}
|
||||
|
||||
private final LocatedBlockList previous = new LocatedBlockList();
|
||||
private final LocatedBlockList current = new LocatedBlockList();
|
||||
|
||||
@Override
|
||||
public void add(Change change) {
|
||||
@ -53,8 +55,8 @@ public class BlockOptimizedHistory extends ArrayListHistory {
|
||||
if (change instanceof BlockChange) {
|
||||
BlockChange blockChange = (BlockChange) change;
|
||||
BlockVector position = blockChange.getPosition();
|
||||
previous.put(position, blockChange.getPrevious());
|
||||
current.put(position, blockChange.getCurrent());
|
||||
previous.add(position, blockChange.getPrevious());
|
||||
current.add(position, blockChange.getCurrent());
|
||||
} else {
|
||||
super.add(change);
|
||||
}
|
||||
@ -64,14 +66,14 @@ public class BlockOptimizedHistory extends ArrayListHistory {
|
||||
public Iterator<Change> forwardIterator() {
|
||||
return Iterators.concat(
|
||||
super.forwardIterator(),
|
||||
Iterators.transform(current.iterator(), createTransform()));
|
||||
Iterators.transform(current.iterator(), BlockOptimizedHistory::createChange));
|
||||
}
|
||||
|
||||
@Override
|
||||
public Iterator<Change> backwardIterator() {
|
||||
return Iterators.concat(
|
||||
super.backwardIterator(),
|
||||
Iterators.transform(previous.iterator(true), createTransform()));
|
||||
Iterators.transform(previous.reverseIterator(), BlockOptimizedHistory::createChange));
|
||||
}
|
||||
|
||||
@Override
|
||||
@ -79,14 +81,4 @@ public class BlockOptimizedHistory extends ArrayListHistory {
|
||||
return super.size() + previous.size();
|
||||
}
|
||||
|
||||
/**
|
||||
* Create a function that transforms each entry from the double array lists' iterator
|
||||
* into an {@link Change}.
|
||||
*
|
||||
* @return a function
|
||||
*/
|
||||
private Function<Entry<BlockVector, BlockStateHolder>, Change> createTransform() {
|
||||
return entry -> new BlockChange(entry.getKey(), entry.getValue(), entry.getValue());
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
@ -103,7 +103,7 @@ public class WorldEditBinding extends BindingHelper {
|
||||
Player sender = getPlayer(context);
|
||||
LocalSession session = worldEdit.getSessionManager().get(sender);
|
||||
EditSession editSession = session.createEditSession(sender);
|
||||
editSession.enableQueue();
|
||||
editSession.enableStandardMode();
|
||||
context.getContext().getLocals().put(EditSession.class, editSession);
|
||||
session.tellVersion(sender);
|
||||
return editSession;
|
||||
|
||||
@ -65,7 +65,7 @@ public class CraftScriptContext extends CraftScriptEnvironment {
|
||||
EditSession editSession = controller.getEditSessionFactory()
|
||||
.getEditSession(player.getWorld(),
|
||||
session.getBlockChangeLimit(), session.getBlockBag(player), player);
|
||||
editSession.enableQueue();
|
||||
editSession.enableStandardMode();
|
||||
editSessions.add(editSession);
|
||||
return editSession;
|
||||
}
|
||||
|
||||
@ -0,0 +1,67 @@
|
||||
/*
|
||||
* WorldEdit, a Minecraft world manipulation toolkit
|
||||
* Copyright (C) sk89q <http://www.sk89q.com>
|
||||
* Copyright (C) WorldEdit team and contributors
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify it
|
||||
* under the terms of the GNU Lesser General Public License as published by the
|
||||
* Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
|
||||
* for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
package com.sk89q.worldedit.util;
|
||||
|
||||
import static com.google.common.base.Preconditions.checkNotNull;
|
||||
|
||||
import com.sk89q.worldedit.Vector;
|
||||
import com.sk89q.worldedit.world.block.BlockStateHolder;
|
||||
|
||||
import java.util.Objects;
|
||||
|
||||
/**
|
||||
* Represents a block located at some position.
|
||||
*/
|
||||
public final class LocatedBlock {
|
||||
|
||||
private final Vector location;
|
||||
private final BlockStateHolder block;
|
||||
|
||||
public LocatedBlock(Vector location, BlockStateHolder block) {
|
||||
this.location = checkNotNull(location);
|
||||
this.block = checkNotNull(block);
|
||||
}
|
||||
|
||||
public Vector getLocation() {
|
||||
return location;
|
||||
}
|
||||
|
||||
public BlockStateHolder getBlock() {
|
||||
return block;
|
||||
}
|
||||
|
||||
@Override
|
||||
public int hashCode() {
|
||||
return Objects.hash(location, block);
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean equals(Object obj) {
|
||||
if (this == obj) {
|
||||
return true;
|
||||
}
|
||||
if (this.getClass() != obj.getClass()) {
|
||||
return false;
|
||||
}
|
||||
LocatedBlock lb = (LocatedBlock) obj;
|
||||
return Objects.equals(location, lb.location) && Objects.equals(block, lb.block);
|
||||
}
|
||||
|
||||
}
|
||||
@ -1,114 +0,0 @@
|
||||
/*
|
||||
* WorldEdit, a Minecraft world manipulation toolkit
|
||||
* Copyright (C) sk89q <http://www.sk89q.com>
|
||||
* Copyright (C) WorldEdit team and contributors
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify it
|
||||
* under the terms of the GNU Lesser General Public License as published by the
|
||||
* Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
|
||||
* for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
package com.sk89q.worldedit.util.collection;
|
||||
|
||||
import static com.google.common.base.Preconditions.checkArgument;
|
||||
import static com.google.common.base.Preconditions.checkNotNull;
|
||||
|
||||
import java.util.Iterator;
|
||||
import java.util.List;
|
||||
import java.util.NoSuchElementException;
|
||||
|
||||
/**
|
||||
* A fast iterator for lists that uses an internal index integer
|
||||
* and caches the size of the list. The size of the list cannot change
|
||||
* during iteration and {@link Iterator#remove()} is not supported.
|
||||
*
|
||||
* <p>The iterator in Java, at least in older Java versions, is very slow,
|
||||
* causing a significant amount of time in operations in WorldEdit
|
||||
* being spent on {@link Iterator#hasNext()}. In contrast, the iterator
|
||||
* implemented by this class is very quick, as long as
|
||||
* {@link List#get(int)} is fast.</p>
|
||||
*
|
||||
* @param <E> the element
|
||||
*/
|
||||
public class FastListIterator<E> implements Iterator<E> {
|
||||
|
||||
private final List<E> list;
|
||||
private int index;
|
||||
private final int size;
|
||||
private final int increment;
|
||||
|
||||
/**
|
||||
* Create a new fast iterator.
|
||||
*
|
||||
* @param list the list
|
||||
* @param index the index to start from
|
||||
* @param size the size of the list
|
||||
* @param increment the increment amount (i.e. 1 or -1)
|
||||
*/
|
||||
private FastListIterator(List<E> list, int index, int size, int increment) {
|
||||
checkNotNull(list);
|
||||
checkArgument(size >= 0, "size >= 0 required");
|
||||
checkArgument(index >= 0, "index >= 0 required");
|
||||
this.list = list;
|
||||
this.index = index;
|
||||
this.size = size;
|
||||
this.increment = increment;
|
||||
}
|
||||
|
||||
@Override
|
||||
public boolean hasNext() {
|
||||
return index >= 0 && index < size;
|
||||
}
|
||||
|
||||
@Override
|
||||
public E next() {
|
||||
if (hasNext()) {
|
||||
E entry = list.get(index);
|
||||
index += increment;
|
||||
return entry;
|
||||
} else {
|
||||
throw new NoSuchElementException();
|
||||
}
|
||||
}
|
||||
|
||||
@Override
|
||||
public void remove() {
|
||||
throw new UnsupportedOperationException("Not supported");
|
||||
}
|
||||
|
||||
/**
|
||||
* Create a new forward iterator for the given list.
|
||||
*
|
||||
* @param list the list
|
||||
* @param <E> the element
|
||||
* @return an iterator
|
||||
*/
|
||||
public static <E> Iterator<E> forwardIterator(List<E> list) {
|
||||
return new FastListIterator<>(list, 0, list.size(), 1);
|
||||
}
|
||||
|
||||
/**
|
||||
* Create a new reverse iterator for the given list.
|
||||
*
|
||||
* @param list the list
|
||||
* @param <E> the element
|
||||
* @return an iterator
|
||||
*/
|
||||
public static <E> Iterator<E> reverseIterator(List<E> list) {
|
||||
if (!list.isEmpty()) {
|
||||
return new FastListIterator<>(list, list.size() - 1, list.size(), -1);
|
||||
} else {
|
||||
return new FastListIterator<>(list, 0, 0, -1);
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
@ -0,0 +1,88 @@
|
||||
/*
|
||||
* WorldEdit, a Minecraft world manipulation toolkit
|
||||
* Copyright (C) sk89q <http://www.sk89q.com>
|
||||
* Copyright (C) WorldEdit team and contributors
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify it
|
||||
* under the terms of the GNU Lesser General Public License as published by the
|
||||
* Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
|
||||
* for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
package com.sk89q.worldedit.util.collection;
|
||||
|
||||
import static com.google.common.base.Preconditions.checkNotNull;
|
||||
|
||||
import com.sk89q.worldedit.Vector;
|
||||
import com.sk89q.worldedit.util.LocatedBlock;
|
||||
import com.sk89q.worldedit.world.block.BlockStateHolder;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Collection;
|
||||
import java.util.Iterator;
|
||||
import java.util.List;
|
||||
import java.util.ListIterator;
|
||||
|
||||
/**
|
||||
* Wrapper around a list of blocks located in the world.
|
||||
*/
|
||||
public class LocatedBlockList implements Iterable<LocatedBlock> {
|
||||
|
||||
private final List<LocatedBlock> list;
|
||||
|
||||
public LocatedBlockList() {
|
||||
list = new ArrayList<>();
|
||||
}
|
||||
|
||||
public LocatedBlockList(Collection<? extends LocatedBlock> collection) {
|
||||
list = new ArrayList<>(collection);
|
||||
}
|
||||
|
||||
public void add(LocatedBlock setBlockCall) {
|
||||
checkNotNull(setBlockCall);
|
||||
list.add(setBlockCall);
|
||||
}
|
||||
|
||||
public void add(Vector location, BlockStateHolder block) {
|
||||
add(new LocatedBlock(location, block));
|
||||
}
|
||||
|
||||
public int size() {
|
||||
return list.size();
|
||||
}
|
||||
|
||||
public void clear() {
|
||||
list.clear();
|
||||
}
|
||||
|
||||
@Override
|
||||
public Iterator<LocatedBlock> iterator() {
|
||||
return list.iterator();
|
||||
}
|
||||
|
||||
public Iterator<LocatedBlock> reverseIterator() {
|
||||
return new Iterator<LocatedBlock>() {
|
||||
|
||||
private final ListIterator<LocatedBlock> backingIterator = list.listIterator(list.size());
|
||||
|
||||
@Override
|
||||
public boolean hasNext() {
|
||||
return backingIterator.hasPrevious();
|
||||
}
|
||||
|
||||
@Override
|
||||
public LocatedBlock next() {
|
||||
return backingIterator.previous();
|
||||
}
|
||||
};
|
||||
}
|
||||
|
||||
}
|
||||
@ -1,94 +0,0 @@
|
||||
/*
|
||||
* WorldEdit, a Minecraft world manipulation toolkit
|
||||
* Copyright (C) sk89q <http://www.sk89q.com>
|
||||
* Copyright (C) WorldEdit team and contributors
|
||||
*
|
||||
* This program is free software: you can redistribute it and/or modify it
|
||||
* under the terms of the GNU Lesser General Public License as published by the
|
||||
* Free Software Foundation, either version 3 of the License, or
|
||||
* (at your option) any later version.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful, but WITHOUT
|
||||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
|
||||
* for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public License
|
||||
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||||
*/
|
||||
|
||||
package com.sk89q.worldedit.util.collection;
|
||||
|
||||
import java.util.ArrayList;
|
||||
import java.util.Iterator;
|
||||
import java.util.Map;
|
||||
|
||||
/**
|
||||
* An {@link ArrayList} that takes {@link Map.Entry}-like tuples. This class
|
||||
* exists for legacy reasons.
|
||||
*
|
||||
* @param <A> the first type in the tuple
|
||||
* @param <B> the second type in the tuple
|
||||
*/
|
||||
public class TupleArrayList<A, B> extends ArrayList<Map.Entry<A, B>> {
|
||||
|
||||
/**
|
||||
* Add an item to the list.
|
||||
*
|
||||
* @param a the 'key'
|
||||
* @param b the 'value'
|
||||
*/
|
||||
public void put(A a, B b) {
|
||||
add(new Tuple<>(a, b));
|
||||
}
|
||||
|
||||
/**
|
||||
* Return an entry iterator that traverses in the reverse direction.
|
||||
*
|
||||
* @param reverse true to return the reverse iterator
|
||||
* @return an entry iterator
|
||||
*/
|
||||
public Iterator<Map.Entry<A, B>> iterator(boolean reverse) {
|
||||
return reverse ? reverseIterator() : iterator();
|
||||
}
|
||||
|
||||
@Override
|
||||
public Iterator<Map.Entry<A, B>> iterator() {
|
||||
return FastListIterator.forwardIterator(this);
|
||||
}
|
||||
|
||||
/**
|
||||
* Return an entry iterator that traverses in the reverse direction.
|
||||
*
|
||||
* @return an entry iterator
|
||||
*/
|
||||
public Iterator<Map.Entry<A, B>> reverseIterator() {
|
||||
return FastListIterator.reverseIterator(this);
|
||||
}
|
||||
|
||||
private static class Tuple<A, B> implements Map.Entry<A, B> {
|
||||
private A key;
|
||||
private B value;
|
||||
|
||||
private Tuple(A key, B value) {
|
||||
this.key = key;
|
||||
this.value = value;
|
||||
}
|
||||
|
||||
@Override
|
||||
public A getKey() {
|
||||
return key;
|
||||
}
|
||||
|
||||
@Override
|
||||
public B getValue() {
|
||||
return value;
|
||||
}
|
||||
|
||||
@Override
|
||||
public B setValue(B value) {
|
||||
throw new UnsupportedOperationException();
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
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In neuem Issue referenzieren
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