Geyser/bootstrap/fabric/src/main/java/org/geysermc/geyser/platform/fabric/world/GeyserFabricWorldManager.java

290 lines
12 KiB
Java

/*
* Copyright (c) 2019-2022 GeyserMC. http://geysermc.org
*
* 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.
*
* @author GeyserMC
* @link https://github.com/GeyserMC/Geyser
*/
package org.geysermc.geyser.platform.fabric.world;
import com.github.steveice10.mc.protocol.data.game.entity.player.GameMode;
import com.github.steveice10.mc.protocol.data.game.level.block.BlockEntityInfo;
import me.lucko.fabric.api.permissions.v0.Permissions;
import net.minecraft.core.BlockPos;
import net.minecraft.nbt.*;
import net.minecraft.server.MinecraftServer;
import net.minecraft.server.level.ServerPlayer;
import net.minecraft.world.item.ItemStack;
import net.minecraft.world.item.WritableBookItem;
import net.minecraft.world.item.WrittenBookItem;
import net.minecraft.world.level.block.entity.BannerBlockEntity;
import net.minecraft.world.level.block.entity.BlockEntity;
import net.minecraft.world.level.block.entity.LecternBlockEntity;
import net.minecraft.world.level.chunk.LevelChunk;
import org.checkerframework.checker.nullness.qual.NonNull;
import org.cloudburstmc.math.vector.Vector3i;
import org.cloudburstmc.nbt.NbtMap;
import org.cloudburstmc.nbt.NbtMapBuilder;
import org.cloudburstmc.nbt.NbtType;
import org.geysermc.erosion.util.LecternUtils;
import org.geysermc.geyser.level.GeyserWorldManager;
import org.geysermc.geyser.session.GeyserSession;
import org.geysermc.geyser.util.BlockEntityUtils;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import java.util.concurrent.CompletableFuture;
public class GeyserFabricWorldManager extends GeyserWorldManager {
private final MinecraftServer server;
public GeyserFabricWorldManager(MinecraftServer server) {
this.server = server;
}
@Override
public boolean shouldExpectLecternHandled(GeyserSession session) {
return true;
}
@Override
public void sendLecternData(GeyserSession session, int x, int z, List<BlockEntityInfo> blockEntityInfos) {
server.execute(() -> {
ServerPlayer player = getPlayer(session);
if (player == null) {
return;
}
//noinspection resource - level() is just a getter
LevelChunk chunk = player.level().getChunk(x, z);
final int chunkBlockX = x << 4;
final int chunkBlockZ = z << 4;
//noinspection ForLoopReplaceableByForEach - avoid constructing iterator
for (int i = 0; i < blockEntityInfos.size(); i++) {
BlockEntityInfo blockEntityInfo = blockEntityInfos.get(i);
BlockEntity blockEntity = chunk.getBlockEntity(new BlockPos(chunkBlockX + blockEntityInfo.getX(),
blockEntityInfo.getY(), chunkBlockZ + blockEntityInfo.getZ()));
sendLecternData(session, blockEntity, true);
}
});
}
@Override
public void sendLecternData(GeyserSession session, int x, int y, int z) {
server.execute(() -> {
ServerPlayer player = getPlayer(session);
if (player == null) {
return;
}
//noinspection resource - level() is just a getter
BlockEntity blockEntity = player.level().getBlockEntity(new BlockPos(x, y, z));
sendLecternData(session, blockEntity, false);
});
}
private void sendLecternData(GeyserSession session, BlockEntity blockEntity, boolean isChunkLoad) {
if (!(blockEntity instanceof LecternBlockEntity lectern)) {
return;
}
int x = blockEntity.getBlockPos().getX();
int y = blockEntity.getBlockPos().getY();
int z = blockEntity.getBlockPos().getZ();
if (!lectern.hasBook()) {
if (!isChunkLoad) {
BlockEntityUtils.updateBlockEntity(session, LecternUtils.getBaseLecternTag(x, y, z, 0).build(), Vector3i.from(x, y, z));
}
return;
}
ItemStack book = lectern.getBook();
int pageCount = WrittenBookItem.getPageCount(book);
boolean hasBookPages = pageCount > 0;
NbtMapBuilder lecternTag = LecternUtils.getBaseLecternTag(x, y, z, hasBookPages ? pageCount : 1);
lecternTag.putInt("page", lectern.getPage() / 2);
NbtMapBuilder bookTag = NbtMap.builder()
.putByte("Count", (byte) book.getCount())
.putShort("Damage", (short) 0)
.putString("Name", "minecraft:writable_book");
List<NbtMap> pages = new ArrayList<>(hasBookPages ? pageCount : 1);
if (hasBookPages && WritableBookItem.makeSureTagIsValid(book.getTag())) {
ListTag listTag = book.getTag().getList("pages", 8);
for (int i = 0; i < listTag.size(); i++) {
String page = listTag.getString(i);
NbtMapBuilder pageBuilder = NbtMap.builder()
.putString("photoname", "")
.putString("text", page);
pages.add(pageBuilder.build());
}
} else {
// Empty page
NbtMapBuilder pageBuilder = NbtMap.builder()
.putString("photoname", "")
.putString("text", "");
pages.add(pageBuilder.build());
}
bookTag.putCompound("tag", NbtMap.builder().putList("pages", NbtType.COMPOUND, pages).build());
lecternTag.putCompound("book", bookTag.build());
NbtMap blockEntityTag = lecternTag.build();
BlockEntityUtils.updateBlockEntity(session, blockEntityTag, Vector3i.from(x, y, z));
}
@Override
public boolean hasPermission(GeyserSession session, String permission) {
ServerPlayer player = getPlayer(session);
return Permissions.check(player, permission);
}
@Override
public GameMode getDefaultGameMode(GeyserSession session) {
return GameMode.byId(server.getDefaultGameType().getId());
}
@NonNull
@Override
public CompletableFuture<com.github.steveice10.opennbt.tag.builtin.CompoundTag> getPickItemNbt(GeyserSession session, int x, int y, int z, boolean addNbtData) {
CompletableFuture<com.github.steveice10.opennbt.tag.builtin.CompoundTag> future = new CompletableFuture<>();
server.execute(() -> {
ServerPlayer player = getPlayer(session);
if (player == null) {
future.complete(null);
return;
}
BlockPos pos = new BlockPos(x, y, z);
// Don't create a new block entity if invalid
//noinspection resource - level() is just a getter
BlockEntity blockEntity = player.level().getChunkAt(pos).getBlockEntity(pos);
if (blockEntity instanceof BannerBlockEntity banner) {
// Potentially exposes other NBT data? But we need to get the NBT data for the banner patterns *and*
// the banner might have a custom name, both of which a Java client knows and caches
ItemStack itemStack = banner.getItem();
var tag = OpenNbtTagVisitor.convert("", itemStack.getOrCreateTag());
future.complete(tag);
return;
}
future.complete(null);
});
return future;
}
private ServerPlayer getPlayer(GeyserSession session) {
return server.getPlayerList().getPlayer(session.getPlayerEntity().getUuid());
}
// Future considerations: option to clone; would affect arrays
private static class OpenNbtTagVisitor implements TagVisitor {
private String currentKey;
private final com.github.steveice10.opennbt.tag.builtin.CompoundTag root;
private com.github.steveice10.opennbt.tag.builtin.Tag currentTag;
OpenNbtTagVisitor(String key) {
root = new com.github.steveice10.opennbt.tag.builtin.CompoundTag(key);
}
@Override
public void visitString(StringTag stringTag) {
currentTag = new com.github.steveice10.opennbt.tag.builtin.StringTag(currentKey, stringTag.getAsString());
}
@Override
public void visitByte(ByteTag byteTag) {
currentTag = new com.github.steveice10.opennbt.tag.builtin.ByteTag(currentKey, byteTag.getAsByte());
}
@Override
public void visitShort(ShortTag shortTag) {
currentTag = new com.github.steveice10.opennbt.tag.builtin.ShortTag(currentKey, shortTag.getAsShort());
}
@Override
public void visitInt(IntTag intTag) {
currentTag = new com.github.steveice10.opennbt.tag.builtin.IntTag(currentKey, intTag.getAsInt());
}
@Override
public void visitLong(LongTag longTag) {
currentTag = new com.github.steveice10.opennbt.tag.builtin.LongTag(currentKey, longTag.getAsLong());
}
@Override
public void visitFloat(FloatTag floatTag) {
currentTag = new com.github.steveice10.opennbt.tag.builtin.FloatTag(currentKey, floatTag.getAsFloat());
}
@Override
public void visitDouble(DoubleTag doubleTag) {
currentTag = new com.github.steveice10.opennbt.tag.builtin.DoubleTag(currentKey, doubleTag.getAsDouble());
}
@Override
public void visitByteArray(ByteArrayTag byteArrayTag) {
currentTag = new com.github.steveice10.opennbt.tag.builtin.ByteArrayTag(currentKey, byteArrayTag.getAsByteArray());
}
@Override
public void visitIntArray(IntArrayTag intArrayTag) {
currentTag = new com.github.steveice10.opennbt.tag.builtin.IntArrayTag(currentKey, intArrayTag.getAsIntArray());
}
@Override
public void visitLongArray(LongArrayTag longArrayTag) {
currentTag = new com.github.steveice10.opennbt.tag.builtin.LongArrayTag(currentKey, longArrayTag.getAsLongArray());
}
@Override
public void visitList(ListTag listTag) {
var newList = new com.github.steveice10.opennbt.tag.builtin.ListTag(currentKey);
for (Tag tag : listTag) {
currentKey = "";
tag.accept(this);
newList.add(currentTag);
}
currentTag = newList;
}
@Override
public void visitCompound(@NonNull CompoundTag compoundTag) {
currentTag = convert(currentKey, compoundTag);
}
private static com.github.steveice10.opennbt.tag.builtin.CompoundTag convert(String name, CompoundTag compoundTag) {
OpenNbtTagVisitor visitor = new OpenNbtTagVisitor(name);
for (String key : compoundTag.getAllKeys()) {
visitor.currentKey = key;
Tag tag = Objects.requireNonNull(compoundTag.get(key));
tag.accept(visitor);
visitor.root.put(visitor.currentTag);
}
return visitor.root;
}
@Override
public void visitEnd(@NonNull EndTag endTag) {
}
}
}