PGMDev · Electroid · Nov 13, 2021 · Oct 24, 2021 · Oct 24, 2021 · Oct 24, 2021
@@ -9,6 +9,7 @@
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
+import org.bukkit.event.block.BlockPlaceEvent;
 import org.bukkit.event.entity.ProjectileHitEvent;
 import org.bukkit.event.entity.ProjectileLaunchEvent;
 import org.bukkit.event.inventory.InventoryClickEvent;
@@ -172,4 +173,13 @@ public void checkItemTransfer(ItemTransferEvent event) {
       event.setCancelled(true);
     }
   }
+
+  @EventHandler(priority = EventPriority.LOW, ignoreCancelled = true)
+  public void checkInfiniteBlocks(BlockPlaceEvent event) {
+    final ItemStack item = event.getPlayer().getItemInHand();
+    if (ItemTags.INFINITE.has(item)) {
+      // infinite block contains -1 items, giving -1 items sets the amount back to -1
+      item.setAmount(-1);
+    }
+  }
 }
@@ -413,7 +413,10 @@ public ItemStack parseItem(Element el, Material type) throws InvalidXMLException
   }
 
   public ItemStack parseItem(Element el, Material type, short damage) throws InvalidXMLException {
-    int amount = XMLUtils.parseNumber(el.getAttribute("amount"), Integer.class, 1);
+    int amount = XMLUtils.parseNumber(Node.fromAttr(el, "amount"), Integer.class, true, 1);
+
+    // amount returns max value of integer if "oo" is given as amount
+    if (amount == Integer.MAX_VALUE) amount = -1;
 
     // must be CraftItemStack to keep track of NBT data
     ItemStack itemStack = NMSHacks.craftItemCopy(new ItemStack(type, amount, damage));
@@ -422,7 +425,12 @@ public ItemStack parseItem(Element el, Material type, short damage) throws Inval
       throw new InvalidXMLException("Invalid item/block", el);
     }
 
+    if (amount == -1 && !itemStack.getType().isBlock()) {
+      throw new InvalidXMLException("infinity can only be applied to a block material", el);
+    }
+
     ItemMeta meta = itemStack.getItemMeta();
+
     if (meta != null) { // This happens if the item is "air"
       parseItemMeta(el, meta);
       itemStack.setItemMeta(meta);
@@ -539,6 +547,10 @@ public void parseCustomNBT(Element el, ItemStack itemStack) throws InvalidXMLExc
       ItemTags.PREVENT_SHARING.set(itemStack, true);
     }
 
+    if (itemStack.getAmount() == -1) {
+      ItemTags.INFINITE.set(itemStack, true);
+    }
+
     Node projectileNode = Node.fromAttr(el, "projectile");
     if (projectileNode != null) {
       ItemTags.PROJECTILE.set(

@@ -7,6 +7,7 @@ public class ItemTags {
   public static final ItemTag<Boolean> PREVENT_SHARING = ItemTag.newBoolean("prevent-sharing");
   public static final ItemTag<String> PROJECTILE = ItemTag.newString("projectile");
   public static final ItemTag<String> ORIGINAL_NAME = ItemTag.newString("original-name");
+  public static final ItemTag<Boolean> INFINITE = ItemTag.newBoolean("infinite");
 
   private ItemTags() {}
 }