remap items in advancements

common/src/main/java/us/myles/ViaVersion/protocols/protocol1_14to1_13_2/Protocol1_14To1_13_2.java

@@ -38,7 +38,48 @@ public class Protocol1_14To1_13_2 extends Protocol {
 		registerOutgoing(State.PLAY, 0x4E, 0x4F);
 		registerOutgoing(State.PLAY, 0x4F, 0x50);
 		registerOutgoing(State.PLAY, 0x50, 0x51);
-		registerOutgoing(State.PLAY, 0x51, 0x52);
+
+		registerOutgoing(State.PLAY, 0x51, 0x52, new PacketRemapper() {
+			@Override
+			public void registerMap() {
+				handler(new PacketHandler() {
+					@Override
+					public void handle(PacketWrapper wrapper) throws Exception {
+						wrapper.passthrough(Type.BOOLEAN); // Reset/clear
+						int size = wrapper.passthrough(Type.VAR_INT); // Mapping size
+
+						for (int i = 0; i < size; i++) {
+							wrapper.passthrough(Type.STRING); // Identifier
+
+							// Parent
+							if (wrapper.passthrough(Type.BOOLEAN))
+								wrapper.passthrough(Type.STRING);
+
+							// Display data
+							if (wrapper.passthrough(Type.BOOLEAN)) {
+								wrapper.passthrough(Type.STRING); // Title
+								wrapper.passthrough(Type.STRING); // Description
+								InventoryPackets.toClient(wrapper.passthrough(Type.FLAT_VAR_INT_ITEM)); // Icon
+								wrapper.passthrough(Type.VAR_INT); // Frame type
+								int flags = wrapper.passthrough(Type.INT); // Flags
+								if ((flags & 1) != 0)
+									wrapper.passthrough(Type.STRING); // Background texture
+								wrapper.passthrough(Type.FLOAT); // X
+								wrapper.passthrough(Type.FLOAT); // Y
+							}
+
+							wrapper.passthrough(Type.STRING_ARRAY); // Criteria
+
+							int arrayLength = wrapper.passthrough(Type.VAR_INT);
+							for (int array = 0; array < arrayLength; array++) {
+								wrapper.passthrough(Type.STRING_ARRAY); // String array
+							}
+						}
+					}
+				});
+			}
+		});
+
 		registerOutgoing(State.PLAY, 0x52, 0x53);
 		registerOutgoing(State.PLAY, 0x53, 0x54);