001/*
002 * Trident - A Multithreaded Server Alternative
003 * Copyright 2014 The TridentSDK Team
004 *
005 * Licensed under the Apache License, Version 2.0 (the "License");
006 * you may not use this file except in compliance with the License.
007 * You may obtain a copy of the License at
008 *
009 *    http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017
018package net.tridentsdk.event.block;
019
020import com.google.common.collect.ImmutableList;
021import net.tridentsdk.base.Block;
022import net.tridentsdk.base.BlockDirection;
023
024import java.util.List;
025
026/**
027 * This event occurs when a piston becomes extended
028 *
029 * @author The TridentSDK Team
030 * @since 0.3-alpha-DP
031 */
032public class PistonExtendEvent extends BlockPistonEvent {
033    private final ImmutableList<Block> blocksInfluenced;
034    private boolean cancelled;
035
036    public PistonExtendEvent(Block block, BlockDirection direction, List<Block> influenced) {
037        super(block, direction, false, influenced.get(0));
038
039        this.blocksInfluenced = ImmutableList.copyOf(influenced);
040    }
041
042    @Override
043    public boolean isIgnored() {
044        return cancelled;
045    }
046
047    @Override
048    public void cancel(boolean cancelled) {
049        this.cancelled = cancelled;
050    }
051
052    /**
053     * Returns an ImmutableList of the blocks that are being pushed by this piston, may be empty
054     */
055    public List<Block> blocksInfluenced() {
056        return this.blocksInfluenced;
057    }
058}