BlockInput.java

net.minecraft.commands.arguments.blocks.BlockInput

信息

• 全限定名：net.minecraft.commands.arguments.blocks.BlockInput
• 类型：public class
• 包：net.minecraft.commands.arguments.blocks
• 源码路径：src/main/java/net/minecraft/commands/arguments/blocks/BlockInput.java
• 起始行号：L22
• 实现：Predicate
• 职责：

  TODO

字段/常量

• LOGGER

  • 类型: Logger
  • 修饰符: private static final
  • 源码定位: L23
  • 说明:

    TODO

• state

  • 类型: BlockState
  • 修饰符: private final
  • 源码定位: L24
  • 说明:

    TODO

• properties

  • 类型: Set<Property<?>>
  • 修饰符: private final
  • 源码定位: L25
  • 说明:

    TODO

• tag

  • 类型: CompoundTag
  • 修饰符: private final
  • 源码定位: L26
  • 说明:

    TODO

内部类/嵌套类型

• 无

构造器

public BlockInput(BlockState state, Set<Property<?>> properties, CompoundTag tag) @ L28

• 构造器名：BlockInput
• 源码定位：L28
• 修饰符：public

参数:

• state: BlockState
• properties: Set<Property<?>>
• tag: CompoundTag

说明:

TODO

方法

下面的方法块按源码顺序生成。

public BlockState getState() @ L34

• 方法名：getState
• 源码定位：L34
• 返回类型：BlockState
• 修饰符：public

参数:

• 无

说明:

TODO

public Set<Property<?>> getDefinedProperties() @ L38

• 方法名：getDefinedProperties
• 源码定位：L38
• 返回类型：Set<Property<?>>
• 修饰符：public

参数:

• 无

说明:

TODO

public boolean test(BlockInWorld blockInWorld) @ L42

• 方法名：test
• 源码定位：L42
• 返回类型：boolean
• 修饰符：public

参数:

• blockInWorld: BlockInWorld

说明:

TODO

public boolean test(ServerLevel level, BlockPos pos) @ L62

• 方法名：test
• 源码定位：L62
• 返回类型：boolean
• 修饰符：public

参数:

• level: ServerLevel
• pos: BlockPos

说明:

TODO

public boolean place(ServerLevel level, BlockPos pos, int update) @ L66

• 方法名：place
• 源码定位：L66
• 返回类型：boolean
• 修饰符：public

参数:

• level: ServerLevel
• pos: BlockPos
• update: int

说明:

TODO

private BlockState overwriteWithDefinedProperties(BlockState state) @ L103

• 方法名：overwriteWithDefinedProperties
• 源码定位：L103
• 返回类型：BlockState
• 修饰符：private

参数:

• state: BlockState

说明:

TODO

private static <T extends Comparable<T>> BlockState copyProperty(BlockState target, BlockState source, Property<T> property) @ L115

• 方法名：copyProperty
• 源码定位：L115
• 返回类型：<T extends Comparable> BlockState
• 修饰符：private static

参数:

• target: BlockState
• source: BlockState
• property: Property

说明:

TODO

代码

public class BlockInput implements Predicate<BlockInWorld> {
    private static final Logger LOGGER = LogUtils.getLogger();
    private final BlockState state;
    private final Set<Property<?>> properties;
    private final @Nullable CompoundTag tag;
 
    public BlockInput(BlockState state, Set<Property<?>> properties, @Nullable CompoundTag tag) {
        this.state = state;
        this.properties = properties;
        this.tag = tag;
    }
 
    public BlockState getState() {
        return this.state;
    }
 
    public Set<Property<?>> getDefinedProperties() {
        return this.properties;
    }
 
    public boolean test(BlockInWorld blockInWorld) {
        BlockState state = blockInWorld.getState();
        if (!state.is(this.state.getBlock())) {
            return false;
        } else {
            for (Property<?> property : this.properties) {
                if (state.getValue(property) != this.state.getValue(property)) {
                    return false;
                }
            }
 
            if (this.tag == null) {
                return true;
            } else {
                BlockEntity entity = blockInWorld.getEntity();
                return entity != null && NbtUtils.compareNbt(this.tag, entity.saveWithFullMetadata(blockInWorld.getLevel().registryAccess()), true);
            }
        }
    }
 
    public boolean test(ServerLevel level, BlockPos pos) {
        return this.test(new BlockInWorld(level, pos, false));
    }
 
    public boolean place(ServerLevel level, BlockPos pos, @Block.UpdateFlags int update) {
        BlockState state = (update & 16) != 0 ? this.state : Block.updateFromNeighbourShapes(this.state, level, pos);
        if (state.isAir()) {
            state = this.state;
        }
 
        state = this.overwriteWithDefinedProperties(state);
        boolean affected = false;
        if (level.setBlock(pos, state, update)) {
            affected = true;
        }
 
        if (this.tag != null) {
            BlockEntity entity = level.getBlockEntity(pos);
            if (entity != null) {
                try (ProblemReporter.ScopedCollector reporter = new ProblemReporter.ScopedCollector(LOGGER)) {
                    HolderLookup.Provider registries = level.registryAccess();
                    ProblemReporter blockEntityReporter = reporter.forChild(entity.problemPath());
                    TagValueOutput initialOutput = TagValueOutput.createWithContext(blockEntityReporter.forChild(() -> "(before)"), registries);
                    entity.saveWithoutMetadata(initialOutput);
                    CompoundTag before = initialOutput.buildResult();
                    entity.loadWithComponents(TagValueInput.create(reporter, registries, this.tag));
                    TagValueOutput updatedOutput = TagValueOutput.createWithContext(blockEntityReporter.forChild(() -> "(after)"), registries);
                    entity.saveWithoutMetadata(updatedOutput);
                    CompoundTag after = updatedOutput.buildResult();
                    if (!after.equals(before)) {
                        affected = true;
                        entity.setChanged();
                        level.getChunkSource().blockChanged(pos);
                    }
                }
            }
        }
 
        return affected;
    }
 
    private BlockState overwriteWithDefinedProperties(BlockState state) {
        if (state == this.state) {
            return state;
        } else {
            for (Property<?> property : this.properties) {
                state = copyProperty(state, this.state, property);
            }
 
            return state;
        }
    }
 
    private static <T extends Comparable<T>> BlockState copyProperty(BlockState target, BlockState source, Property<T> property) {
        return target.trySetValue(property, source.getValue(property));
    }
}

引用的其他类

• BlockPos

  • 引用位置: 参数

• CompoundTag

  • 引用位置: 参数/字段

• NbtUtils

  • 引用位置: 方法调用
  • 关联成员: NbtUtils.compareNbt()

• ServerLevel

  • 引用位置: 参数

• ProblemReporter

  • 引用位置: 方法调用/构造调用
  • 关联成员: ProblemReporter.ScopedCollector(), ScopedCollector()

• Block

  • 引用位置: 方法调用
  • 关联成员: Block.updateFromNeighbourShapes()

• BlockState

  • 引用位置: 参数/字段/返回值

• BlockInWorld

  • 引用位置: 参数/实现/构造调用
  • 关联成员: BlockInWorld()

• Property

  • 引用位置: 参数/字段/返回值

• TagValueInput

  • 引用位置: 方法调用
  • 关联成员: TagValueInput.create()

• TagValueOutput

  • 引用位置: 方法调用
  • 关联成员: TagValueOutput.createWithContext()