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97 lines
2.8 KiB
Java
97 lines
2.8 KiB
Java
/*
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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.history.change;
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import static com.google.common.base.Preconditions.checkNotNull;
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import com.sk89q.worldedit.WorldEditException;
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import com.sk89q.worldedit.extent.Extent;
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import com.sk89q.worldedit.history.UndoContext;
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import com.sk89q.worldedit.math.BlockVector2;
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import com.sk89q.worldedit.world.biome.BaseBiome;
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/**
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* Represents a biome change that may be undone or replayed.
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*
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* <p>This biome change does not have an {@link Extent} assigned to it because
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* one will be taken from the passed {@link UndoContext}. If the context
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* does not have an extent (it is null), cryptic errors may occur.</p>
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*/
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public class BiomeChange implements Change {
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private final BlockVector2 position;
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private final BaseBiome previous;
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private final BaseBiome current;
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/**
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* Create a new biome change.
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*
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* @param position the position
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* @param previous the previous biome
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* @param current the current biome
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*/
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public BiomeChange(BlockVector2 position, BaseBiome previous, BaseBiome current) {
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checkNotNull(position);
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checkNotNull(previous);
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checkNotNull(current);
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this.position = position;
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this.previous = previous;
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this.current = current;
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}
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/**
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* Get the position.
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*
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* @return the position
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*/
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public BlockVector2 getPosition() {
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return position;
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}
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/**
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* Get the previous biome.
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*
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* @return the previous biome
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*/
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public BaseBiome getPrevious() {
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return previous;
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}
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/**
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* Get the current biome.
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*
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* @return the current biome
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*/
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public BaseBiome getCurrent() {
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return current;
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}
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@Override
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public void undo(UndoContext context) throws WorldEditException {
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checkNotNull(context.getExtent()).setBiome(position, previous);
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}
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@Override
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public void redo(UndoContext context) throws WorldEditException {
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checkNotNull(context.getExtent()).setBiome(position, current);
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}
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}
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