First commit

src/main/java/me/lukasabbe/voicechatgroupmsg/Commands.java

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+package me.lukasabbe.voicechatgroupmsg;
+
+import com.mojang.brigadier.CommandDispatcher;
+import com.mojang.brigadier.context.CommandContext;
+import com.mojang.brigadier.exceptions.CommandSyntaxException;
+import de.maxhenkel.voicechat.api.Group;
+import net.minecraft.command.CommandRegistryAccess;
+import net.minecraft.command.argument.MessageArgumentType;
+import net.minecraft.network.message.MessageType;
+import net.minecraft.network.message.SentMessage;
+import net.minecraft.server.command.CommandManager;
+import net.minecraft.server.command.ServerCommandSource;
+import net.minecraft.server.network.ServerPlayerEntity;
+import net.minecraft.text.Text;
+
+import java.util.List;
+
+public class Commands {
+    public static void CreateGroupMsgCommand(CommandDispatcher<ServerCommandSource> dispatcher, CommandRegistryAccess commandRegistryAccess, CommandManager.RegistrationEnvironment registrationEnvironment) {
+        dispatcher.register(
+                CommandManager
+                        .literal("msgvc")
+                        .then(
+                                CommandManager
+                                        .argument("message", MessageArgumentType.message())
+                                        .executes(Commands::runCommand)));
+    }
+
+    private static int runCommand(CommandContext<ServerCommandSource> ctx) throws CommandSyntaxException {
+        final ServerCommandSource source = ctx.getSource();
+        if(!source.isExecutedByPlayer()) {
+            source.sendError(Text.literal("You can't send msgvc as the console"));
+            return 0;
+        }
+        final ServerPlayerEntity player = source.getPlayer();
+        if(!VoiceChatGroupMsg.isPlayerInGroup(player)){
+            source.sendError(Text.literal("You need to be in a voice chat group to use this command"));
+            return 0;
+        }
+        Group group = VoiceChatGroupMsg.getPlayerGroup(player);
+        List<ServerPlayerEntity> players = VoiceChatGroupMsg.GroupPlayers(group.getId(), source.getWorld());
+        MessageArgumentType.getSignedMessage(ctx, "message", signedMessage -> {
+            player.sendChatMessage(SentMessage.of(signedMessage),true, MessageType.params(MessageType.MSG_COMMAND_OUTGOING,source).withTargetName(Text.of(group.getName())));
+            players.forEach(player1 -> {
+                if(!player1.getUuid().equals(source.getPlayer().getUuid())){
+                    player1.sendChatMessage(SentMessage.of(signedMessage),true, MessageType.params(MessageType.MSG_COMMAND_INCOMING,source));
+                }
+            });
+        });
+        return 1;
+    }
+}

src/main/java/me/lukasabbe/voicechatgroupmsg/VoiceChatGroupMsg.java

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+package me.lukasabbe.voicechatgroupmsg;
+
+import de.maxhenkel.voicechat.api.Group;
+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;
+import net.fabricmc.api.DedicatedServerModInitializer;
+import net.fabricmc.fabric.api.command.v2.CommandRegistrationCallback;
+import net.minecraft.server.network.ServerPlayerEntity;
+import net.minecraft.server.world.ServerWorld;
+
+import java.util.List;
+import java.util.UUID;
+
+public class VoiceChatGroupMsg implements DedicatedServerModInitializer, VoicechatPlugin {
+    public final static String MOD_ID = "voicechatgroupmsg";
+    private static VoicechatServerApi API = null;
+    @Override
+    public void onInitializeServer() {
+        CommandRegistrationCallback.EVENT.register(Commands::CreateGroupMsgCommand);
+    }
+
+    @Override
+    public String getPluginId() {
+        return MOD_ID;
+    }
+
+    @Override
+    public void registerEvents(EventRegistration registration) {
+        registration.registerEvent(VoicechatServerStartedEvent.class, this::onServerStarted);
+    }
+
+    public void onServerStarted(VoicechatServerStartedEvent event) {
+        API = event.getVoicechat();
+    }
+
+    public static boolean isPlayerInGroup(ServerPlayerEntity player){
+        try{
+            return API.getConnectionOf(player.getUuid()).isInGroup();
+        }catch (NullPointerException ignore){
+            return false;
+        }
+    }
+    public static boolean isPlayerInGroup(ServerPlayerEntity player, UUID groupID){
+        try{
+            if(!API.getConnectionOf(player.getUuid()).isInGroup())return false;
+            return API.getConnectionOf(player.getUuid()).getGroup().getId().equals(groupID);
+
+        }catch (NullPointerException ignore){
+            return false;
+        }
+    }
+    public static Group getPlayerGroup(ServerPlayerEntity player){
+        return API.getConnectionOf(player.getUuid()).getGroup();
+    }
+    public static List<ServerPlayerEntity> GroupPlayers(UUID groupUUID, ServerWorld serverWorld){
+        return serverWorld.getPlayers(player -> isPlayerInGroup(player, groupUUID));
+    }
+}

src/main/resources/fabric.mod.json

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+{
+  "schemaVersion": 1,
+  "id": "voicechatgroupmsg",
+  "version": "${version}",
+  "name": "VoiceChatGroupMsg",
+  "description": "",
+  "authors": [],
+  "contact": {
+    "repo": "https://github.com/lukas/VoiceChatGroupMsg"
+  },
+  "license": "MIT",
+  "icon": "assets/voicechatgroupmsg/icon.png",
+  "environment": "server",
+  "entrypoints": {
+    "server": [
+      "me.lukasabbe.voicechatgroupmsg.VoiceChatGroupMsg"
+    ],
+    "voicechat": [
+      "me.lukasabbe.voicechatgroupmsg.VoiceChatGroupMsg"
+    ]
+  },
+  "depends": {
+    "fabricloader": ">=${loader_version}",
+    "fabric": "*",
+    "minecraft": "${minecraft_version}",
+    "voicechat": ">=${minecraft_version}-${voicechat_api_version}"
+  }
+}