Introduce the first two plugin messages sent by MCCI

fabric/build.gradle.kts

@@ -26,8 +26,11 @@ dependencies {
     // Fabric API. This is technically optional, but you probably want it anyway.
     modImplementation("net.fabricmc.fabric-api:fabric-api:${property("fabric_version")}")
 
-    // Compatibility with other mods
+    // Add the API module
+    include(project(":api"))
     api(project(":api"))
+
+    // Compatibility with other mods
     modImplementation("maven.modrinth:sodium:${property("sodium")}")
     modImplementation("maven.modrinth:iris:${property("iris")}") {
         isTransitive = false

fabric/src/main/java/com/noxcrew/noxesium/network/NoxesiumPackets.java

@@ -4,6 +4,8 @@
 import com.mojang.datafixers.util.Pair;
 import com.noxcrew.noxesium.NoxesiumMod;
 import com.noxcrew.noxesium.network.clientbound.ClientboundChangeServerRulesPacket;
+import com.noxcrew.noxesium.network.clientbound.ClientboundMccGameStatePacket;
+import com.noxcrew.noxesium.network.clientbound.ClientboundMccServerPacket;
 import com.noxcrew.noxesium.network.clientbound.ClientboundNoxesiumPacket;
 import com.noxcrew.noxesium.network.clientbound.ClientboundResetPacket;
 import com.noxcrew.noxesium.network.clientbound.ClientboundResetServerRulesPacket;
@@ -35,14 +37,19 @@ public class NoxesiumPackets {
     private static final Map<String, String> serverboundPackets = new HashMap<>();
     private static final Set<String> registeredGroups = new HashSet<>();
 
-    /** The namespace under which all packets are registered. Appended by a global API version equal to the major version of Noxesium. */
+    /**
+     * The namespace under which all packets are registered. Appended by a global API version equal to the major version of Noxesium.
+     */
     public static final String PACKET_NAMESPACE = NoxesiumMod.NAMESPACE + "-v1";
 
     public static final PacketType<ClientboundChangeServerRulesPacket> CLIENT_CHANGE_SERVER_RULES = client("change_server_rules", ClientboundChangeServerRulesPacket::new);
     public static final PacketType<ClientboundResetServerRulesPacket> CLIENT_RESET_SERVER_RULES = client("reset_server_rules", ClientboundResetServerRulesPacket::new);
     public static final PacketType<ClientboundResetPacket> CLIENT_RESET = client("reset", ClientboundResetPacket::new);
     public static final PacketType<ClientboundServerInformationPacket> CLIENT_SERVER_INFO = client("server_info", ClientboundServerInformationPacket::new);
 
+    public static final PacketType<ClientboundMccServerPacket> CLIENT_MCC_SERVER = client("mcc_server", ClientboundMccServerPacket::new);
+    public static final PacketType<ClientboundMccGameStatePacket> CLIENT_MCC_GAME_STATE = client("mcc_game_state", ClientboundMccGameStatePacket::new);
+
     public static final PacketType<ServerboundClientInformationPacket> SERVER_CLIENT_INFO = server("client_info");
     public static final PacketType<ServerboundClientSettingsPacket> SERVER_CLIENT_SETTINGS = server("client_settings");
 
@@ -78,8 +85,8 @@ public static <T extends ClientboundNoxesiumPacket> PacketType<T> client(String
     /**
      * Registers a new serverbound Noxesium packet.
      *
-     * @param id          The identifier of this packet.
-     * @param <T>         The type of packet.
+     * @param id  The identifier of this packet.
+     * @param <T> The type of packet.
      * @return The PacketType instance.
      */
     public static <T extends ServerboundNoxesiumPacket> PacketType<T> server(String id) {
@@ -89,9 +96,9 @@ public static <T extends ServerboundNoxesiumPacket> PacketType<T> server(String
     /**
      * Registers a new serverbound Noxesium packet.
      *
-     * @param id          The identifier of this packet.
-     * @param group       The group this packet belongs to, this can be used to selectively register packets based on the server being used.
-     * @param <T>         The type of packet.
+     * @param id    The identifier of this packet.
+     * @param group The group this packet belongs to, this can be used to selectively register packets based on the server being used.
+     * @param <T>   The type of packet.
      * @return The PacketType instance.
      */
     public static <T extends ServerboundNoxesiumPacket> PacketType<T> server(String id, String group) {

fabric/src/main/java/com/noxcrew/noxesium/network/clientbound/ClientboundMccGameStatePacket.java

@@ -0,0 +1,42 @@
+package com.noxcrew.noxesium.network.clientbound;
+
+import com.noxcrew.noxesium.network.NoxesiumPackets;
+import net.fabricmc.fabric.api.networking.v1.PacketSender;
+import net.fabricmc.fabric.api.networking.v1.PacketType;
+import net.minecraft.client.player.LocalPlayer;
+import net.minecraft.network.FriendlyByteBuf;
+
+/**
+ * Sent by MCC Island whenever the game state changes.
+ * Possible values for the phase type:
+ * - LOADING
+ * - WAITING_FOR_PLAYERS
+ * - PRE_GAME
+ * - PLAY
+ * - INTERMISSION
+ * - POST_GAME
+ * <p>
+ * Values for the stage key differ based on the game.
+ */
+public class ClientboundMccGameStatePacket extends ClientboundNoxesiumPacket {
+
+    public final String phaseType;
+    public final String stage;
+
+    public ClientboundMccGameStatePacket(FriendlyByteBuf buf) {
+        super(buf.readVarInt());
+        this.phaseType = buf.readUtf();
+        this.stage = buf.readUtf();
+    }
+
+    @Override
+    public void receive(LocalPlayer player, PacketSender responseSender) {
+        // This packet is sent to be handled by any other users of the MCC Island API.
+        // TODO Set up a public packet handler API here?
+    }
+
+    @Override
+    public PacketType<?> getType() {
+        return NoxesiumPackets.CLIENT_MCC_GAME_STATE;
+    }
+}

fabric/src/main/java/com/noxcrew/noxesium/network/clientbound/ClientboundMccServerPacket.java

@@ -0,0 +1,35 @@
+package com.noxcrew.noxesium.network.clientbound;
+
+import com.noxcrew.noxesium.network.NoxesiumPackets;
+import net.fabricmc.fabric.api.networking.v1.PacketSender;
+import net.fabricmc.fabric.api.networking.v1.PacketType;
+import net.minecraft.client.player.LocalPlayer;
+import net.minecraft.network.FriendlyByteBuf;
+
+/**
+ * Sent by MCC Island whenever you switch servers. All values are dynamic and may change over time.
+ */
+public class ClientboundMccServerPacket extends ClientboundNoxesiumPacket {
+
+    public final String type;
+    public final String subType;
+    public final String associatedGame;
+
+    public ClientboundMccServerPacket(FriendlyByteBuf buf) {
+        super(buf.readVarInt());
+        this.type = buf.readUtf();
+        this.subType = buf.readUtf();
+        this.associatedGame = buf.readUtf();
+    }
+
+    @Override
+    public void receive(LocalPlayer player, PacketSender responseSender) {
+        // This packet is sent to be handled by any other users of the MCC Island API.
+        // TODO Set up a public packet handler API here?
+    }
+
+    @Override
+    public PacketType<?> getType() {
+        return NoxesiumPackets.CLIENT_MCC_SERVER;
+    }
+}