mirror of
https://github.com/Minestom/Minestom.git
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142 lines
5.6 KiB
Java
142 lines
5.6 KiB
Java
package net.minestom.server.instance.block;
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import com.github.benmanes.caffeine.cache.Cache;
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import com.github.benmanes.caffeine.cache.Caffeine;
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import net.minestom.server.registry.Registry;
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import net.minestom.server.tag.Tag;
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import net.minestom.server.utils.ObjectArray;
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import net.minestom.server.utils.block.BlockUtils;
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import org.jetbrains.annotations.NotNull;
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import org.jetbrains.annotations.Nullable;
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import org.jglrxavpok.hephaistos.nbt.NBTCompound;
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import org.jglrxavpok.hephaistos.nbt.mutable.MutableNBTCompound;
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import java.time.Duration;
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import java.util.Collection;
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import java.util.HashMap;
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import java.util.Map;
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import java.util.Objects;
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import java.util.function.Function;
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record BlockImpl(@NotNull Registry.BlockEntry registry,
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@NotNull Map<String, String> properties,
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@Nullable NBTCompound nbt,
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@Nullable BlockHandler handler) implements Block {
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// Block state -> block object
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private static final ObjectArray<Block> BLOCK_STATE_MAP = new ObjectArray<>();
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// Block id -> Map<Properties, Block>
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private static final ObjectArray<Map<Map<String, String>, Block>> POSSIBLE_STATES = new ObjectArray<>();
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private static final Registry.Container<Block> CONTAINER = new Registry.Container<>(Registry.Resource.BLOCKS,
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(container, namespace, object) -> {
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final var stateObject = (Map<String, Object>) object.get("states");
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// Loop each state
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var propertyEntry = new HashMap<Map<String, String>, Block>();
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for (var stateEntry : stateObject.entrySet()) {
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final String query = stateEntry.getKey();
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final var stateOverride = (Map<String, Object>) stateEntry.getValue();
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final var propertyMap = BlockUtils.parseProperties(query);
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final Block block = new BlockImpl(Registry.block(namespace, object, stateOverride),
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propertyMap, null, null);
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BLOCK_STATE_MAP.set(block.stateId(), block);
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propertyEntry.put(propertyMap, block);
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}
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POSSIBLE_STATES.set(((Number) object.get("id")).intValue(), Map.copyOf(propertyEntry));
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// Register default state
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final int defaultState = ((Number) object.get("defaultStateId")).intValue();
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container.register(getState(defaultState));
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});
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private static final Cache<NBTCompound, NBTCompound> NBT_CACHE = Caffeine.newBuilder()
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.expireAfterWrite(Duration.ofMinutes(5))
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.weakValues()
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.build();
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static {
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BLOCK_STATE_MAP.trim();
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POSSIBLE_STATES.trim();
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}
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static Block get(@NotNull String namespace) {
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return CONTAINER.get(namespace);
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}
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static Block getSafe(@NotNull String namespace) {
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return CONTAINER.getSafe(namespace);
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}
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static Block getId(int id) {
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return CONTAINER.getId(id);
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}
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static Block getState(int stateId) {
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return BLOCK_STATE_MAP.get(stateId);
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}
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static Collection<Block> values() {
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return CONTAINER.values();
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}
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public BlockImpl {
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properties = Map.copyOf(properties);
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}
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@Override
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public @NotNull Block withProperty(@NotNull String property, @NotNull String value) {
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var properties = new HashMap<>(this.properties);
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final String oldProperty = properties.replace(property, value);
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if (oldProperty == null)
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throw new IllegalArgumentException("Property " + property + " does not exist");
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return compute(properties);
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}
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@Override
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public @NotNull Block withProperties(@NotNull Map<@NotNull String, @NotNull String> properties) {
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if (properties.isEmpty()) return this;
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if (this.properties.size() == properties.size()) {
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return compute(properties); // Map should be complete
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}
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var newProperties = new HashMap<>(this.properties);
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newProperties.putAll(properties);
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return compute(newProperties);
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}
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@Override
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public @NotNull <T> Block withTag(@NotNull Tag<T> tag, @Nullable T value) {
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var temporaryNbt = new MutableNBTCompound(Objects.requireNonNullElse(nbt, NBTCompound.EMPTY));
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tag.write(temporaryNbt, value);
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final var finalNbt = temporaryNbt.getSize() > 0 ? NBT_CACHE.get(temporaryNbt.toCompound(), Function.identity()) : null;
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return new BlockImpl(registry, properties, finalNbt, handler);
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}
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@Override
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public @NotNull Block withHandler(@Nullable BlockHandler handler) {
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return new BlockImpl(registry, properties, nbt, handler);
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}
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@Override
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public @NotNull Collection<@NotNull Block> possibleStates() {
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return possibleProperties().values();
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}
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@Override
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public <T> @Nullable T getTag(@NotNull Tag<T> tag) {
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return nbt != null ? tag.read(nbt) : null;
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}
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private Map<Map<String, String>, Block> possibleProperties() {
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return POSSIBLE_STATES.get(id());
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}
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@Override
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public String toString() {
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return String.format("%s{properties=%s, nbt=%s, handler=%s}", name(), properties, nbt, handler);
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}
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private Block compute(Map<String, String> properties) {
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if (this.properties.equals(properties)) return this;
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Block block = possibleProperties().get(properties);
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if (block == null)
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throw new IllegalArgumentException("Invalid properties: " + properties + " for block " + this);
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return nbt == null && handler == null ? block : new BlockImpl(block.registry(), block.properties(), nbt, handler);
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}
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}
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