Handle set_player_inventory

common/src/main/java/com/viaversion/viaversion/protocols/v1_21_2to1_21_4/rewriter/BlockItemPacketRewriter1_21_4.java

@@ -65,6 +65,7 @@ public final class BlockItemPacketRewriter1_21_4 extends StructuredItemRewriter<
         protocol.cancelServerbound(ServerboundPackets1_21_4.PICK_ITEM_FROM_ENTITY);
 
         protocol.registerClientbound(ClientboundPackets1_21_2.SET_CURSOR_ITEM, this::passthroughClientboundItem);
+        registerSetPlayerInventory(ClientboundPackets1_21_2.SET_PLAYER_INVENTORY);
         registerCooldown1_21_2(ClientboundPackets1_21_2.COOLDOWN);
         registerSetContent1_21_2(ClientboundPackets1_21_2.CONTAINER_SET_CONTENT);
         registerSetSlot1_21_2(ClientboundPackets1_21_2.CONTAINER_SET_SLOT);

common/src/main/java/com/viaversion/viaversion/rewriter/ItemRewriter.java

@@ -231,6 +231,13 @@ public class ItemRewriter<C extends ClientboundPacketType, S extends Serverbound
         });
     }
 
+    public void registerSetPlayerInventory(C packetType) {
+        protocol.registerClientbound(packetType, wrapper -> {
+            wrapper.passthrough(Types.VAR_INT); // Slot
+            passthroughClientboundItem(wrapper);
+        });
+    }
+
     public void registerCooldown(C packetType) {
         protocol.registerClientbound(packetType, wrapper -> {
             int itemId = wrapper.read(Types.VAR_INT);