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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,36 @@ | ||
| <?xml version="1.0" encoding="UTF-8"?> | ||
| <project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" | ||
| xmlns="http://maven.apache.org/POM/4.0.0" | ||
| xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> | ||
| <modelVersion>4.0.0</modelVersion> | ||
| <parent> | ||
| <groupId>dev.cerus.visualcrafting</groupId> | ||
| <artifactId>parent</artifactId> | ||
| <version>1.2.0</version> | ||
| </parent> | ||
|
|
||
| <artifactId>bukkit-20R4</artifactId> | ||
|
|
||
| <properties> | ||
| <maven.compiler.source>21</maven.compiler.source> | ||
| <maven.compiler.target>21</maven.compiler.target> | ||
| <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> | ||
| </properties> | ||
|
|
||
| <dependencies> | ||
| <dependency> | ||
| <groupId>dev.cerus.visualcrafting</groupId> | ||
| <artifactId>api</artifactId> | ||
| <version>${project.parent.version}</version> | ||
| <scope>provided</scope> | ||
| </dependency> | ||
|
|
||
| <dependency> | ||
| <groupId>org.bukkit</groupId> | ||
| <artifactId>craftbukkit</artifactId> | ||
| <version>1.20.5-R0.1-SNAPSHOT</version> | ||
| <scope>provided</scope> | ||
| </dependency> | ||
| </dependencies> | ||
|
|
||
| </project> |
232 changes: 232 additions & 0 deletions
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bukkit-20R4/src/main/java/dev/cerus/visualcrafting/v20r4/VersionAdapter20R4.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,232 @@ | ||
| package dev.cerus.visualcrafting.v20r4; | ||
|
|
||
| import com.mojang.math.Transformation; | ||
| import dev.cerus.visualcrafting.api.config.Config; | ||
| import dev.cerus.visualcrafting.api.version.FakeItemDisplay; | ||
| import dev.cerus.visualcrafting.api.version.FakeMap; | ||
| import dev.cerus.visualcrafting.api.version.Feature; | ||
| import dev.cerus.visualcrafting.api.version.VersionAdapter; | ||
| import io.netty.channel.ChannelDuplexHandler; | ||
| import io.netty.channel.ChannelHandlerContext; | ||
| import java.lang.reflect.Field; | ||
| import java.util.Arrays; | ||
| import java.util.Collections; | ||
| import java.util.EnumSet; | ||
| import java.util.UUID; | ||
| import java.util.function.BiConsumer; | ||
| import net.minecraft.network.NetworkManager; | ||
| import net.minecraft.network.protocol.Packet; | ||
| import net.minecraft.network.protocol.game.PacketPlayInUseEntity; | ||
| import net.minecraft.network.protocol.game.PacketPlayOutEntityDestroy; | ||
| import net.minecraft.network.protocol.game.PacketPlayOutEntityMetadata; | ||
| import net.minecraft.network.protocol.game.PacketPlayOutMap; | ||
| import net.minecraft.network.protocol.game.PacketPlayOutSpawnEntity; | ||
| import net.minecraft.network.syncher.DataWatcher; | ||
| import net.minecraft.network.syncher.DataWatcherRegistry; | ||
| import net.minecraft.server.network.PlayerConnection; | ||
| import net.minecraft.server.network.ServerCommonPacketListenerImpl; | ||
| import net.minecraft.world.entity.EntityTypes; | ||
| import net.minecraft.world.level.saveddata.maps.MapId; | ||
| import net.minecraft.world.level.saveddata.maps.WorldMap; | ||
| import net.minecraft.world.phys.Vec3D; | ||
| import org.bukkit.Bukkit; | ||
| import org.bukkit.Location; | ||
| import org.bukkit.Rotation; | ||
| import org.bukkit.block.BlockFace; | ||
| import org.bukkit.craftbukkit.v1_20_R4.entity.CraftPlayer; | ||
| import org.bukkit.craftbukkit.v1_20_R4.inventory.CraftItemStack; | ||
| import org.bukkit.entity.Player; | ||
| import org.bukkit.inventory.ItemStack; | ||
|
|
||
| public class VersionAdapter20R4 extends VersionAdapter { | ||
|
|
||
| private Config config; | ||
| private BiConsumer<Player, Integer> entityClickCallback; | ||
| private int nextEntityId; | ||
| private int nextMapId; | ||
| private Field netManField; | ||
|
|
||
| private NetworkManager getNetworkManager(final PlayerConnection b) { | ||
| try { | ||
| if (this.netManField == null) { | ||
| this.netManField = ServerCommonPacketListenerImpl.class.getDeclaredField("e"); | ||
| this.netManField.setAccessible(true); | ||
| } | ||
| return (NetworkManager) this.netManField.get(b); | ||
| } catch (final NoSuchFieldException | IllegalAccessException e) { | ||
| throw new RuntimeException(e); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public void init(final Config config, final BiConsumer<Player, Integer> entityClickCallback) { | ||
| this.config = config; | ||
| this.entityClickCallback = entityClickCallback; | ||
| this.nextEntityId = config.entityIdRangeMin(); | ||
| this.nextMapId = config.mapIdRangeMin(); | ||
| } | ||
|
|
||
| @Override | ||
| public void inject(final Player player) { | ||
| if (this.config.enablePacketListening()) { | ||
| final NetworkManager netMan = this.getNetworkManager(((CraftPlayer) player).getHandle().c); | ||
| netMan.n.pipeline() | ||
| .addBefore("packet_handler", "visual_crafting", new ChannelDuplexHandler() { | ||
| @Override | ||
| public void channelRead(final ChannelHandlerContext ctx, final Object msg) throws Exception { | ||
| if (msg instanceof final PacketPlayInUseEntity useEntity) { | ||
| VersionAdapter20R4.this.handlePacketIn(player, useEntity); | ||
| } | ||
| super.channelRead(ctx, msg); | ||
| } | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| private void handlePacketIn(final Player player, final PacketPlayInUseEntity packet) { | ||
| try { | ||
| final Field a = packet.getClass().getDeclaredField("b"); | ||
| a.setAccessible(true); | ||
| this.entityClickCallback.accept(player, (Integer) a.get(packet)); | ||
| } catch (final NoSuchFieldException | IllegalAccessException e) { | ||
| e.printStackTrace(); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public int spawnItemFrame(final Location location, final BlockFace direction) { | ||
| final int eid = this.getNewEntityId(); | ||
| final PacketPlayOutSpawnEntity packet = new PacketPlayOutSpawnEntity( | ||
| eid, | ||
| UUID.randomUUID(), | ||
| location.getBlockX(), | ||
| location.getBlockY(), | ||
| location.getBlockZ(), | ||
| direction == BlockFace.DOWN ? 90 : direction == BlockFace.UP ? -90 : 0, | ||
| switch (direction) { | ||
| case NORTH -> -180; | ||
| case EAST -> -90; | ||
| case WEST -> 90; | ||
| default -> 0; | ||
| }, | ||
| EntityTypes.ai, | ||
| switch (direction) { | ||
| case UP -> 1; | ||
| case NORTH -> 2; | ||
| case SOUTH -> 3; | ||
| case WEST -> 4; | ||
| case EAST -> 5; | ||
| default -> 0; | ||
| }, | ||
| new Vec3D(0, 0, 0), | ||
| switch (direction) { | ||
| case NORTH -> -180; | ||
| case EAST -> -90; | ||
| case WEST -> 90; | ||
| default -> 0; | ||
| } | ||
| ); | ||
| Bukkit.getOnlinePlayers().forEach(player -> this.sendPacket(player, packet)); | ||
| return eid; | ||
| } | ||
|
|
||
| @Override | ||
| public int spawnItemDisplay(final FakeItemDisplay itemDisplay) { | ||
| final int eid = this.getNewEntityId(); | ||
| final PacketPlayOutSpawnEntity packet = new PacketPlayOutSpawnEntity( | ||
| eid, | ||
| UUID.randomUUID(), | ||
| itemDisplay.getLocation().getBlockX(), | ||
| itemDisplay.getLocation().getBlockY(), | ||
| itemDisplay.getLocation().getBlockZ(), | ||
| 0, | ||
| 0, | ||
| EntityTypes.ah, | ||
| 0, | ||
| new Vec3D(0, 0, 0), | ||
| 0 | ||
| ); | ||
| Bukkit.getOnlinePlayers().forEach(player -> this.sendPacket(player, packet)); | ||
| return eid; | ||
| } | ||
|
|
||
| @Override | ||
| public void updateItemFrame(final int frameId, final ItemStack itemStack, final Rotation rotation, final boolean invisible) { | ||
| final PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(frameId, Arrays.asList( | ||
| new DataWatcher.c<>(8, DataWatcherRegistry.h, CraftItemStack.asNMSCopy(itemStack)), | ||
| new DataWatcher.c<>(9, DataWatcherRegistry.b, rotation.ordinal()), | ||
| new DataWatcher.c<>(0, DataWatcherRegistry.a, (byte) (invisible ? 0x20 : 0)) | ||
| )); | ||
| Bukkit.getOnlinePlayers().forEach(player -> this.sendPacket(player, packet)); | ||
| } | ||
|
|
||
| @Override | ||
| public void updateItemDisplay(final int displayId, final FakeItemDisplay itemDisplay) { | ||
| final Transformation nmsTransf = new Transformation(itemDisplay.getTransformationMatrix()); | ||
| final PacketPlayOutEntityMetadata packet = new PacketPlayOutEntityMetadata(displayId, Arrays.asList( | ||
| new DataWatcher.c<>(11, DataWatcherRegistry.D, nmsTransf.d()), | ||
| new DataWatcher.c<>(12, DataWatcherRegistry.D, nmsTransf.f()), | ||
| new DataWatcher.c<>(13, DataWatcherRegistry.E, nmsTransf.e()), | ||
| new DataWatcher.c<>(14, DataWatcherRegistry.E, nmsTransf.g()), | ||
| new DataWatcher.c<>(23, DataWatcherRegistry.h, CraftItemStack.asNMSCopy(itemDisplay.getItemStack())), | ||
| new DataWatcher.c<>(24, DataWatcherRegistry.a, (byte) itemDisplay.getTransform().ordinal()) | ||
| )); | ||
| Bukkit.getOnlinePlayers().forEach(player -> this.sendPacket(player, packet)); | ||
| } | ||
|
|
||
| @Override | ||
| public void destroyEntity(final int entityId) { | ||
| final PacketPlayOutEntityDestroy packet = new PacketPlayOutEntityDestroy(entityId); | ||
| Bukkit.getOnlinePlayers().forEach(player -> this.sendPacket(player, packet)); | ||
| } | ||
|
|
||
| @Override | ||
| public FakeMap createMap() { | ||
| int mapId = getNewMapId(); | ||
| return this.createMap(mapId, new MapId(mapId)); | ||
| } | ||
|
|
||
| @Override | ||
| public void sendMap(final FakeMap map) { | ||
| final PacketPlayOutMap packet = new PacketPlayOutMap( | ||
| (MapId) getMapHandle(map), | ||
| (byte) 0, | ||
| true, | ||
| Collections.emptyList(), | ||
| new WorldMap.b(0, | ||
| 0, | ||
| 128, | ||
| 128, | ||
| this.getMapData(map)) | ||
| ); | ||
| Bukkit.getOnlinePlayers().forEach(player -> this.sendPacket(player, packet)); | ||
| } | ||
|
|
||
| @Override | ||
| public EnumSet<Feature> getImplementedFeatures() { | ||
| return FEATURES_DISPLAY; | ||
| } | ||
|
|
||
| private void sendPacket(final Player player, final Packet<?> packet) { | ||
| ((CraftPlayer) player).getHandle().c.b(packet); | ||
| } | ||
|
|
||
| private int getNewEntityId() { | ||
| if (this.nextEntityId >= this.config.entityIdRangeMax()) { | ||
| this.nextEntityId = this.config.entityIdRangeMin(); | ||
| return this.nextEntityId; | ||
| } else { | ||
| return this.nextEntityId++; | ||
| } | ||
| } | ||
|
|
||
| private int getNewMapId() { | ||
| if (this.nextMapId >= this.config.mapIdRangeMax()) { | ||
| this.nextMapId = this.config.mapIdRangeMin(); | ||
| return this.nextMapId; | ||
| } else { | ||
| return this.nextMapId++; | ||
| } | ||
| } | ||
|
|
||
| } |
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