wip

DEVELOPMENT.md

@@ -0,0 +1,7 @@
+To see Minecraft source code: https://git.m724.eu/Minecon724/fabric-template-minimal-source
+
+To setup NMS:
+1. Download BuildTools, move it into an empty directory and open terminal
+2. ```
+   java -jar BuildTools.jar --rev 1.21.1 --remapped
+   ```

pom.xml

@@ -12,6 +12,7 @@
         <maven.compiler.source>21</maven.compiler.source>
         <maven.compiler.target>21</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+        <project.spigot.version>1.21.1-R0.1-SNAPSHOT</project.spigot.version>
     </properties>
 
     <build>
@@ -54,6 +55,39 @@
                 </executions>
             </plugin>
             <!-- end of this -->
+            <plugin>
+                <groupId>net.md-5</groupId>
+                <artifactId>specialsource-maven-plugin</artifactId>
+                <version>2.0.3</version>
+                <executions>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>remap</goal>
+                        </goals>
+                        <id>remap-obf</id>
+                        <configuration>
+                            <srgIn>org.spigotmc:minecraft-server:${project.spigot.version}:txt:maps-mojang</srgIn>
+                            <reverse>true</reverse>
+                            <remappedDependencies>org.spigotmc:spigot:${project.spigot.version}:jar:remapped-mojang</remappedDependencies>
+                            <remappedArtifactAttached>true</remappedArtifactAttached>
+                            <remappedClassifierName>remapped-obf-temp-dont-use</remappedClassifierName>
+                        </configuration>
+                    </execution>
+                    <execution>
+                        <phase>package</phase>
+                        <goals>
+                            <goal>remap</goal>
+                        </goals>
+                        <id>remap-spigot</id>
+                        <configuration>
+                            <inputFile>${project.build.directory}/${project.artifactId}-${project.version}-remapped-obf-temp-dont-use.jar</inputFile>
+                            <srgIn>org.spigotmc:minecraft-server:${project.spigot.version}:csrg:maps-spigot</srgIn>
+                            <remappedDependencies>org.spigotmc:spigot:${project.spigot.version}:jar:remapped-obf</remappedDependencies>
+                        </configuration>
+                    </execution>
+                </executions>
+            </plugin>
         </plugins>
     </build>
 
@@ -66,13 +100,37 @@
             <id>dmulloy2-repo</id>
             <url>https://repo.dmulloy2.net/repository/public/</url>
         </repository>
+        <!-- this repo has no ipv6 so keep that in mind -->
+        <repository>
+            <id>maxhenkel-repo</id>
+            <url>https://maven.maxhenkel.de/repository/public</url>
+        </repository>
     </repositories>
 
     <dependencies>
         <dependency>
             <groupId>org.spigotmc</groupId>
             <artifactId>spigot-api</artifactId>
-            <version>1.21.1-R0.1-SNAPSHOT</version>
+            <version>${project.spigot.version}</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>org.spigotmc</groupId>
+            <artifactId>spigot</artifactId>
+            <version>${project.spigot.version}</version>
+            <classifier>remapped-mojang</classifier>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>com.comphenix.protocol</groupId>
+            <artifactId>ProtocolLib</artifactId>
+            <version>5.3.0</version>
+            <scope>provided</scope>
+        </dependency>
+        <dependency>
+            <groupId>de.maxhenkel.voicechat</groupId>
+            <artifactId>voicechat-api</artifactId>
+            <version>2.5.0</version>
             <scope>provided</scope>
         </dependency>
         <dependency>
@@ -81,11 +139,5 @@
             <version>24.1.0</version>
             <scope>compile</scope>
         </dependency>
-        <dependency>
-            <groupId>com.comphenix.protocol</groupId>
-            <artifactId>ProtocolLib</artifactId>
-            <version>5.3.0</version>
-            <scope>provided</scope>
-        </dependency>
     </dependencies>
 </project>

src/main/java/eu/m724/tweaks/TweaksPlugin.java

@@ -3,11 +3,14 @@ package eu.m724.tweaks;
 import eu.m724.tweaks.chat.ChatCommands;
 import eu.m724.tweaks.chat.ChatManager;
 import eu.m724.tweaks.door.DoorListener;
+import eu.m724.tweaks.motd.MotdListener;
 import eu.m724.tweaks.ping.F3NameListener;
 import eu.m724.tweaks.ping.PingChecker;
 import eu.m724.tweaks.ping.PingCommands;
+import eu.m724.tweaks.player.MusicPlayer;
 import org.bukkit.plugin.java.JavaPlugin;
 
+import java.io.IOException;
 import java.util.Objects;
 
 public class TweaksPlugin extends JavaPlugin {
@@ -26,5 +29,18 @@ public class TweaksPlugin extends JavaPlugin {
         new PingChecker(this).init();
         Objects.requireNonNull(getCommand("ping")).setExecutor(new PingCommands());
         Objects.requireNonNull(getCommand("dkick")).setExecutor(new PingCommands());
+
+        if (getServer().getPluginManager().getPlugin("voicechat") != null) {
+            new MusicPlayer(this).init();
+        } else {
+            getLogger().warning("To use voice extensions, install \"Simple Voice Chat\"");
+        }
+
+        try {
+            new MotdListener("example").init(this);
+        } catch (IOException e) {
+            getLogger().severe("Failed to initialize MOTD extension");
+            throw new RuntimeException(e);
+        }
     }
 }

src/main/java/eu/m724/tweaks/motd/MotdListener.java

@@ -0,0 +1,87 @@
+package eu.m724.tweaks.motd;
+
+import com.comphenix.protocol.PacketType;
+import com.comphenix.protocol.ProtocolLibrary;
+import com.comphenix.protocol.events.*;
+import com.comphenix.protocol.reflect.StructureModifier;
+import com.google.gson.JsonElement;
+import net.md_5.bungee.api.chat.TextComponent;
+import net.md_5.bungee.chat.ComponentSerializer;
+import net.minecraft.SharedConstants;
+import net.minecraft.core.RegistryAccess;
+import net.minecraft.network.chat.Component;
+import net.minecraft.network.protocol.status.ServerStatus;
+import org.bukkit.plugin.Plugin;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.util.Arrays;
+import java.util.Optional;
+import java.util.concurrent.ThreadLocalRandom;
+
+public class MotdListener {
+    private final String motdSetName;
+
+    private Component[] motds;
+
+    public MotdListener(String motdSetName) {
+        this.motdSetName = motdSetName;
+    }
+
+    public void init(Plugin plugin) throws IOException {
+        File motdSetsFile = new File(plugin.getDataFolder() + "/motd sets/" + motdSetName + ".txt");
+
+        // if the directory didn't exist create example motd sets
+        if (motdSetsFile.getParentFile().mkdirs()) {
+            plugin.saveResource("motd sets/" + motdSetName + ".txt", true);
+        }
+
+        String fileContent = Files.readString(motdSetsFile.toPath());
+        // MOTDs are split with an empty line
+        motds = Arrays.stream(fileContent.split("\n\n"))
+                .map(s -> {
+                    JsonElement json = ComponentSerializer.toJson(TextComponent.fromLegacy(s.strip()));
+                    return Component.Serializer.fromJson(json, RegistryAccess.EMPTY);
+                })
+                .toArray(Component[]::new);
+
+        plugin.getLogger().info("Loaded %d MOTDs".formatted(motds.length));
+
+        registerListener(plugin);
+    }
+
+    private void registerListener(Plugin plugin) {
+        ProtocolLibrary.getProtocolManager().addPacketListener(new PacketAdapter(
+                plugin,
+                ListenerPriority.NORMAL,
+                PacketType.Status.Server.SERVER_INFO
+        ) {
+            @Override
+            public void onPacketSending(PacketEvent event) {
+                PacketContainer packet = event.getPacket();
+
+                Component motd = motds[ThreadLocalRandom.current().nextInt(motds.length)];
+
+                ServerStatus serverStatus = (ServerStatus) packet.getStructures().read(0).getHandle();
+
+                /* this:
+                 * removes server mod prefix (Paper, Spigot, any brand)
+                 * hides players
+                 */
+                ServerStatus newStatus = new ServerStatus(
+                        motd,
+                        Optional.empty(),
+                        Optional.of(new ServerStatus.Version(
+                                SharedConstants.getCurrentVersion().getName(),
+                                SharedConstants.getProtocolVersion()
+                        )),
+                        serverStatus.favicon(),
+                        false
+                );
+
+                packet.getStructures().write(0, new InternalStructure(newStatus, new StructureModifier<>(ServerStatus.class)));
+            }
+        });
+    }
+}

src/main/java/eu/m724/tweaks/ping/F3NameListener.java

@@ -4,26 +4,16 @@ import com.comphenix.protocol.PacketType;
 import com.comphenix.protocol.ProtocolLibrary;
 import com.comphenix.protocol.events.*;
 import com.comphenix.protocol.reflect.StructureModifier;
+import net.minecraft.network.protocol.common.custom.BrandPayload;
 import org.bukkit.entity.Player;
 import org.bukkit.plugin.Plugin;
 import org.bukkit.scheduler.BukkitRunnable;
 
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
-
 public class F3NameListener {
     private final Plugin plugin;
-    private final Class<?> brandPayloadClass;
-    private final Constructor<?> brandPayloadConstructor;
 
     public F3NameListener(Plugin plugin) {
         this.plugin = plugin;
-        try {
-            this.brandPayloadClass = Class.forName("net.minecraft.network.protocol.common.custom.BrandPayload");
-            this.brandPayloadConstructor = brandPayloadClass.getConstructor(String.class);
-        } catch (ClassNotFoundException | NoSuchMethodException e) {
-            throw new BrandPayloadReflectionException(e);
-        }
     }
 
     public void init() {
@@ -57,34 +47,27 @@ public class F3NameListener {
         ) {
             @Override
             public void onPacketSending(PacketEvent event) {
-                try {
                 PacketContainer packet = event.getPacket();
-                    Object brandPayload = brandPayloadConstructor.newInstance("wait");
-                    InternalStructure structure = new InternalStructure(brandPayload, new StructureModifier<>(brandPayloadClass));
+
+                InternalStructure structure = new InternalStructure(
+                        new BrandPayload("wait"),
+                        new StructureModifier<>(BrandPayload.class)
+                );
+
                 packet.getStructures().write(0, structure);
-                } catch (InstantiationException | IllegalAccessException | InvocationTargetException e) {
-                    throw new BrandPayloadReflectionException(e);
-                }
             }
         });
     }
 
     private void changeBrand(Player player, String brand) {
         PacketContainer packet = new PacketContainer(PacketType.Play.Server.CUSTOM_PAYLOAD);
-        Object brandPayload;
-        try {
-            brandPayload = brandPayloadConstructor.newInstance(brand);
-        } catch (InstantiationException | IllegalAccessException | InvocationTargetException e) {
-            throw new BrandPayloadReflectionException(e);
-        }
-        InternalStructure structure = new InternalStructure(brandPayload, new StructureModifier<>(brandPayloadClass));
+
+        InternalStructure structure = new InternalStructure(
+                new BrandPayload(brand),
+                new StructureModifier<>(BrandPayload.class)
+        );
+
         packet.getStructures().write(0, structure);
         ProtocolLibrary.getProtocolManager().sendServerPacket(player, packet);
     }
-
-    public static class BrandPayloadReflectionException extends RuntimeException {
-        public BrandPayloadReflectionException(Exception e) {
-            super(e);
-        }
-    }
 }

src/main/java/eu/m724/tweaks/player/MusicPlayer.java

@@ -0,0 +1,70 @@
+package eu.m724.tweaks.player;
+
+import de.maxhenkel.voicechat.api.BukkitVoicechatService;
+import de.maxhenkel.voicechat.api.VoicechatServerApi;
+import de.maxhenkel.voicechat.api.VolumeCategory;
+import de.maxhenkel.voicechat.api.audiochannel.AudioPlayer;
+import de.maxhenkel.voicechat.api.audiochannel.EntityAudioChannel;
+import de.maxhenkel.voicechat.api.opus.OpusEncoderMode;
+import org.bukkit.entity.Player;
+import org.bukkit.plugin.Plugin;
+
+import javax.sound.sampled.AudioInputStream;
+import javax.sound.sampled.AudioSystem;
+import javax.sound.sampled.UnsupportedAudioFileException;
+import java.io.IOException;
+import java.util.UUID;
+
+public class MusicPlayer {
+    private static final String PLAYER_CATEGORY = "music_player";
+
+    private VoicechatServerApi voicechat = null;
+
+    private final Plugin plugin;
+
+    public MusicPlayer(Plugin plugin) {
+        this.plugin = plugin;
+    }
+
+    public void init() {
+        BukkitVoicechatService service = plugin.getServer().getServicesManager().load(BukkitVoicechatService.class);
+        service.registerPlugin(new MyVoicechatPlugin(this));
+    }
+
+    void unlock(VoicechatServerApi voicechat) {
+        VolumeCategory category = voicechat.volumeCategoryBuilder()
+                .setId(PLAYER_CATEGORY)
+                .setName("Music players")
+                .build();
+
+        voicechat.registerVolumeCategory(category);
+
+        this.voicechat = voicechat;
+    }
+
+    public void create(Player player) {
+        UUID channelID = UUID.randomUUID();
+        EntityAudioChannel channel = voicechat.createEntityAudioChannel(channelID, voicechat.fromEntity(player));
+
+        channel.setCategory(PLAYER_CATEGORY);
+        channel.setDistance(10);
+
+        short[] arr;
+        try {
+            AudioInputStream audio = AudioSystem.getAudioInputStream(plugin.getResource("music.flac"));
+            int samples = (int) (audio.available() / audio.getFrameLength());
+            arr = new short[samples];
+            for (int i=0; i<audio.available(); i++) {
+
+            }
+        } catch (UnsupportedAudioFileException e) {
+            throw new RuntimeException(e);
+        } catch (IOException e) {
+            throw new RuntimeException(e);
+        }
+
+        AudioPlayer audioPlayer = voicechat.createAudioPlayer(channel, voicechat.createEncoder(OpusEncoderMode.AUDIO), arr);
+        audioPlayer.startPlaying();
+
+    }
+}

src/main/java/eu/m724/tweaks/player/MyVoicechatPlugin.java

@@ -0,0 +1,35 @@
+package eu.m724.tweaks.player;
+
+import de.maxhenkel.voicechat.api.VoicechatApi;
+import de.maxhenkel.voicechat.api.VoicechatPlugin;
+import de.maxhenkel.voicechat.api.VoicechatServerApi;
+import de.maxhenkel.voicechat.api.events.EventRegistration;
+import de.maxhenkel.voicechat.api.events.VoicechatServerStartedEvent;
+
+public class MyVoicechatPlugin implements VoicechatPlugin {
+    private final MusicPlayer musicPlayer;
+
+    MyVoicechatPlugin(MusicPlayer musicPlayer) {
+        this.musicPlayer = musicPlayer;
+
+    }
+
+    @Override
+    public String getPluginId() {
+        return "tweaks724";
+    }
+
+    @Override
+    public void initialize(VoicechatApi api) {
+    }
+
+    @Override
+    public void registerEvents(EventRegistration registration) {
+        registration.registerEvent(VoicechatServerStartedEvent.class, this::onServerStarted);
+    }
+
+    public void onServerStarted(VoicechatServerStartedEvent event) {
+        VoicechatServerApi api = event.getVoicechat();
+        musicPlayer.unlock(api);
+    }
+}

src/main/resources/plugin.yml

@@ -4,6 +4,7 @@ version: ${project.version}
 main: eu.m724.tweaks.TweaksPlugin
 api-version: 1.21.1
 depend: [ProtocolLib]
+softdepend: [voicechat]
 
 commands:
   chat: