Update Multi-Core version and allow inventory pass through on item set.

build.gradle

@@ -22,7 +22,7 @@ repositories {
 
 dependencies {
     compileOnly("io.papermc.paper:paper-api:1.21.1-R0.1-SNAPSHOT")
-    compileOnly 'com.onarandombox.multiversecore:Multiverse-Core:4.3.1'
+    compileOnly 'com.onarandombox.multiversecore:multiverse-core:4.3.12'
 }
 
 def targetJavaVersion = 21

src/main/java/com/liphium/core/inventory/CScreen.java

@@ -43,6 +43,11 @@ public void setItemNotCached(Player player, int slot, CItem item) {
         customItems.put(player, items);
     }
 
+    public void setItemNotCached(Player player, int slot, CItem item, Inventory inventory) {
+        setItemNotCached(player, slot, item);
+        inventory.setItem(slot, item.getStack());
+    }
+
     public void init(Player player) {
     }
 

src/main/java/com/liphium/vampires/screens/ItemShopScreen.java

@@ -38,8 +38,7 @@ public void init(Player player, Inventory inventory) {
     public void openCategory(CClickEvent event, int id, Inventory inventory) {
         final ShopCategory category = ShopCategory.values()[id];
         for (int i = 0; i < category.getItems().size(); i++) {
-            setItemNotCached(event.getPlayer(), 19 + i, category.getItems().get(i));
-            inventory.setItem(19 + i, category.getItems().get(i).getStack());
+            setItemNotCached(event.getPlayer(), 19 + i, category.getItems().get(i), inventory);
         }
     }