Java tutorial
/* * This file is part of Granite, licensed under the MIT License (MIT). * * Copyright (c) SpongePowered <http://github.com/SpongePowered> * Copyright (c) contributors * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ package org.spongepowered.granite.mixin.block.state; import com.google.common.base.Optional; import com.google.common.collect.ImmutableMap; import com.google.common.collect.Lists; import net.minecraft.block.properties.IProperty; import net.minecraft.block.state.BlockState; import net.minecraft.block.state.BlockStateBase; import net.minecraft.block.state.IBlockState; import org.spongepowered.api.block.BlockProperty; import org.spongepowered.api.block.BlockType; import org.spongepowered.api.util.annotation.NonnullByDefault; import org.spongepowered.asm.mixin.Mixin; import org.spongepowered.asm.mixin.Shadow; import java.util.Collection; import java.util.Collections; import java.util.List; @NonnullByDefault @Mixin(BlockState.StateImplementation.class) public abstract class MixinBlockState extends BlockStateBase implements org.spongepowered.api.block.BlockState { @Shadow private ImmutableMap properties; @Override public BlockType getType() { return (BlockType) getBlock(); } @Override @SuppressWarnings("unchecked") public ImmutableMap<BlockProperty<?>, ? extends Comparable<?>> getProperties() { return this.properties; } @Override @SuppressWarnings("unchecked") public Collection<String> getPropertyNames() { ImmutableMap<IProperty, Comparable<?>> properties = ((IBlockState) this).getProperties(); List<String> names = Lists.newArrayListWithCapacity(properties.size()); for (IProperty property : properties.keySet()) { names.add(property.getName()); } return Collections.unmodifiableCollection(names); } @Override @SuppressWarnings("unchecked") public Optional<BlockProperty<?>> getPropertyByName(String name) { ImmutableMap<IProperty, Comparable<?>> properties = ((IBlockState) this).getProperties(); for (IProperty property : properties.keySet()) { if (property.getName().equals(name)) { // The extra specification here is because Java auto-detects <? extends BlockProperty<?>> return Optional.<BlockProperty<?>>fromNullable((BlockProperty<?>) property); } } return Optional.absent(); } @Override @SuppressWarnings("unchecked") public Optional<? extends Comparable<?>> getPropertyValue(String name) { ImmutableMap<IProperty, Comparable<?>> properties = ((IBlockState) this).getProperties(); for (IProperty property : properties.keySet()) { if (property.getName().equals(name)) { return Optional.fromNullable(properties.get(property)); } } return Optional.absent(); } @Override public org.spongepowered.api.block.BlockState withProperty(BlockProperty<?> property, Comparable<?> value) { return (org.spongepowered.api.block.BlockState) withProperty((IProperty) property, value); } @Override public org.spongepowered.api.block.BlockState cycleProperty(BlockProperty<?> property) { return (org.spongepowered.api.block.BlockState) cycleProperty((IProperty) property); } @Override @Deprecated public byte getDataValue() { return (byte) getBlock().getMetaFromState(this); } }