Send the chunkbulk packets immediately. Fixes #535

common/src/main/java/us/myles/ViaVersion/api/PacketWrapper.java

@@ -283,9 +283,23 @@ public class PacketWrapper {
      * @throws Exception if it fails to write
      */
     public void send(Class<? extends Protocol> packetProtocol, boolean skipCurrentPipeline) throws Exception {
+        send(packetProtocol, skipCurrentPipeline, false);
+    }
+
+    /**
+     * Send this packet to the associated user.
+     * Be careful not to send packets twice.
+     * (Sends it after current)
+     *
+     * @param packetProtocol      - The protocol version of the packet.
+     * @param skipCurrentPipeline - Skip the current pipeline
+     * @param currentThread       - Run in the same thread
+     * @throws Exception if it fails to write
+     */
+    public void send(Class<? extends Protocol> packetProtocol, boolean skipCurrentPipeline, boolean currentThread) throws Exception {
         if (!isCancelled()) {
             ByteBuf output = constructPacket(packetProtocol, skipCurrentPipeline);
-            user().sendRawPacket(output);
+            user().sendRawPacket(output, currentThread);
         }
     }
 

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_9to1_8/packets/WorldPackets.java

@@ -162,7 +162,7 @@ public class WorldPackets {
                             output.setId(-1); // -1 for no writing of id
                             output.writeToBuffer(buffer);
                             PacketWrapper chunkPacket = new PacketWrapper(0x21, buffer, wrapper.user());
-                            chunkPacket.send(Protocol1_9TO1_8.class, false);
+                            chunkPacket.send(Protocol1_9TO1_8.class, false, true);
                         }
                     }
                 });