63 lines
2.7 KiB
Java
63 lines
2.7 KiB
Java
/*
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* This file is part of ViaVersion - https://github.com/ViaVersion/ViaVersion
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* Copyright (C) 2016-2021 ViaVersion and contributors
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*
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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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* (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,
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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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*
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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 <http://www.gnu.org/licenses/>.
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*/
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package com.viaversion.viaversion.protocols.protocol1_13to1_12_2.blockconnections;
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import com.viaversion.viaversion.api.connection.UserConnection;
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import com.viaversion.viaversion.api.minecraft.BlockFace;
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import com.viaversion.viaversion.api.minecraft.Position;
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import java.util.HashSet;
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import java.util.Set;
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class VineConnectionHandler extends ConnectionHandler {
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private static final Set<Integer> vines = new HashSet<>();
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static ConnectionData.ConnectorInitAction init() {
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final VineConnectionHandler connectionHandler = new VineConnectionHandler();
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return blockData -> {
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if (!blockData.getMinecraftKey().equals("minecraft:vine")) return;
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vines.add(blockData.getSavedBlockStateId());
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ConnectionData.connectionHandlerMap.put(blockData.getSavedBlockStateId(), connectionHandler);
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};
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}
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@Override
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public int connect(UserConnection user, Position position, int blockState) {
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if (isAttachedToBlock(user, position)) return blockState;
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Position upperPos = position.getRelative(BlockFace.TOP);
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int upperBlock = getBlockData(user, upperPos);
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if (vines.contains(upperBlock) && isAttachedToBlock(user, upperPos)) return blockState;
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// Map to air if not attached to block, and upper block is also not a vine attached to a block
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return 0;
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}
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private boolean isAttachedToBlock(UserConnection user, Position position) {
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return isAttachedToBlock(user, position, BlockFace.EAST)
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|| isAttachedToBlock(user, position, BlockFace.WEST)
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|| isAttachedToBlock(user, position, BlockFace.NORTH)
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|| isAttachedToBlock(user, position, BlockFace.SOUTH);
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}
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private boolean isAttachedToBlock(UserConnection user, Position position, BlockFace blockFace) {
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return ConnectionData.occludingStates.contains(getBlockData(user, position.getRelative(blockFace)));
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}
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}
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