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Blazingly fast Minecraft world manipulation for artists, builders and everyone else.
/*
* WorldEdit, a Minecraft world manipulation toolkit
* Copyright (C) sk89q
* 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 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*/
package com.sk89q.worldedit.function.visitor;
import com.fastasyncworldedit.core.configuration.Caption;
import com.google.common.collect.ImmutableList;
import com.sk89q.worldedit.WorldEditException;
import com.sk89q.worldedit.entity.Entity;
import com.sk89q.worldedit.function.EntityFunction;
import com.sk89q.worldedit.function.operation.Operation;
import com.sk89q.worldedit.function.operation.RunContext;
import com.sk89q.worldedit.util.formatting.text.Component;
import com.sk89q.worldedit.util.formatting.text.TextComponent;
import java.util.Iterator;
import static com.google.common.base.Preconditions.checkNotNull;
/**
* Visits entities as provided by an {@code Iterator}.
*/
public class EntityVisitor implements Operation {
private final Iterator iterator;
private final EntityFunction function;
private int affected = 0;
/**
* Create a new instance.
*
* @param iterator the iterator
* @param function the function
*/
public EntityVisitor(Iterator iterator, EntityFunction function) {
checkNotNull(iterator);
checkNotNull(function);
this.iterator = iterator;
this.function = function;
}
/**
* Get the number of affected objects.
*
* @return the number of affected
*/
public int getAffected() {
return affected;
}
@Override
public Operation resume(RunContext run) throws WorldEditException {
while (iterator.hasNext()) {
if (function.apply(iterator.next())) {
affected++;
}
}
return null;
}
@Override
public void cancel() {
}
@Override
public Iterable getStatusMessages() {
return ImmutableList.of(Caption.of(
"worldedit.operation.affected.entity",
TextComponent.of(getAffected())
));
}
}