3 files changed, 63 insertions, 0 deletions
diff --git a/src/main/java/gregtech/api/net/GT_PacketTypes.java b/src/main/java/gregtech/api/net/GT_PacketTypes.java
index 18fc5134ba..f59a7918a9 100644
--- a/src/main/java/gregtech/api/net/GT_PacketTypes.java
+++ b/src/main/java/gregtech/api/net/GT_PacketTypes.java
@@ -31,6 +31,7 @@ public enum GT_PacketTypes {
     MULTI_TILE_ENTITY(18, new GT_Packet_MultiTileEntity(true)),
     SEND_OREGEN_PATTERN(19, new GT_Packet_SendOregenPattern()),
     TOOL_SWITCH_MODE(20, new GT_Packet_ToolSwitchMode()),
+    MUSIC_SYSTEM_DATA(21, new GT_Packet_MusicSystemData()),
     // merge conflict prevention comment, keep a trailing comma above
     ;
 
diff --git a/src/main/java/gregtech/api/net/GT_Packet_MusicSystemData.java b/src/main/java/gregtech/api/net/GT_Packet_MusicSystemData.java
new file mode 100644
index 0000000000..13ebf49205
--- /dev/null
+++ b/src/main/java/gregtech/api/net/GT_Packet_MusicSystemData.java
@@ -0,0 +1,58 @@
+package gregtech.api.net;
+
+import net.minecraft.world.IBlockAccess;
+
+import com.google.common.io.ByteArrayDataInput;
+
+import gregtech.api.util.GT_MusicSystem;
+import io.netty.buffer.ByteBuf;
+import io.netty.buffer.Unpooled;
+
+public class GT_Packet_MusicSystemData extends GT_Packet_New {
+
+    ByteBuf storedData;
+
+    public GT_Packet_MusicSystemData() {
+        super(true);
+    }
+
+    public GT_Packet_MusicSystemData(ByteBuf data) {
+        super(false);
+        this.storedData = data;
+    }
+
+    @Override
+    public byte getPacketID() {
+        return GT_PacketTypes.MUSIC_SYSTEM_DATA.id;
+    }
+
+    @Override
+    public void encode(ByteBuf aOut) {
+        if (storedData == null) {
+            return;
+        }
+        storedData.markReaderIndex();
+        final int len = storedData.readableBytes();
+        aOut.writeInt(len);
+        aOut.writeBytes(storedData);
+        storedData.resetReaderIndex();
+    }
+
+    @Override
+    public GT_Packet_New decode(ByteArrayDataInput aData) {
+        final int len = aData.readInt();
+        final byte[] fullData = new byte[len];
+        aData.readFully(fullData);
+        return new GT_Packet_MusicSystemData(Unpooled.wrappedBuffer(fullData));
+    }
+
+    @Override
+    public void process(IBlockAccess aWorld) {
+        if (aWorld == null || storedData == null) {
+            return;
+        }
+        storedData.markReaderIndex();
+        GT_MusicSystem.ClientSystem.loadUpdatedSources(storedData);
+        storedData.resetReaderIndex();
+    }
+}
diff --git a/src/main/java/gregtech/api/net/IGT_NetworkHandler.java b/src/main/java/gregtech/api/net/IGT_NetworkHandler.java
index 07c4a37030..8436a89e9b 100644
--- a/src/main/java/gregtech/api/net/IGT_NetworkHandler.java
+++ b/src/main/java/gregtech/api/net/IGT_NetworkHandler.java
@@ -12,6 +12,10 @@ public interface IGT_NetworkHandler {
 
     void sendToAllAround(GT_Packet aPacket, TargetPoint aPosition);
 
+    default void sendToAll(GT_Packet aPacket) {
+        throw new UnsupportedOperationException("sendToAll not implemented");
+    }
+
     void sendToServer(GT_Packet aPacket);
 
     void sendPacketToAllPlayersInRange(World aWorld, GT_Packet aPacket, int aX, int aZ);