LanternBlockState.java 文件源码

LanternBlockState(LanternBlockStateMap baseState, ImmutableMap<BlockTrait<?>, Comparable<?>> traitValues) {
    this.traitValues = traitValues;
    this.baseState = baseState;

    ImmutableBiMap.Builder<Key<Value<?>>, BlockTrait<?>> builder = ImmutableBiMap.builder();
    for (BlockTrait trait : traitValues.keySet()) {
        builder.put(((LanternBlockTrait) trait).getKey(), trait);
    }
    this.keyToBlockTrait = builder.build();

    final StringBuilder idBuilder = new StringBuilder();
    idBuilder.append(baseState.getBlockType().getId().substring(baseState.getBlockType().getPluginId().length() + 1));
    if (!traitValues.isEmpty()) {
        idBuilder.append('[');
        final Joiner joiner = Joiner.on(',');
        final List<String> propertyValues = new ArrayList<>();
        for (Map.Entry<BlockTrait<?>, Comparable<?>> entry : traitValues.entrySet()) {
            propertyValues.add(entry.getKey().getName() + "=" + entry.getValue().toString().toLowerCase(Locale.ENGLISH));
        }
        idBuilder.append(joiner.join(propertyValues));
        idBuilder.append(']');
    }
    this.name = idBuilder.toString();
    this.id = baseState.getBlockType().getPluginId() + ':' + this.name;
}