1 files changed, 196 insertions, 0 deletions
diff --git a/patches/api/0113-ItemStack-API-additions-for-quantity-flags-lore.patch b/patches/api/0113-ItemStack-API-additions-for-quantity-flags-lore.patch
new file mode 100644
index 0000000000..0bfbef94ea
--- /dev/null
+++ b/patches/api/0113-ItemStack-API-additions-for-quantity-flags-lore.patch
@@ -0,0 +1,196 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Aikar <[email protected]>
+Date: Fri, 22 Jun 2018 22:59:18 -0400
+Subject: [PATCH] ItemStack API additions for quantity/flags/lore
+
+
+diff --git a/src/main/java/org/bukkit/inventory/ItemStack.java b/src/main/java/org/bukkit/inventory/ItemStack.java
+index f908c11ece7b3d1a52e21540999f36796237d590..d125d29759167996a90b7b69d92d944e80af22ab 100644
+--- a/src/main/java/org/bukkit/inventory/ItemStack.java
++++ b/src/main/java/org/bukkit/inventory/ItemStack.java
+@@ -686,5 +686,185 @@ public class ItemStack implements Cloneable, ConfigurationSerializable, Translat
+         // Requires access to NMS
+         return ensureServerConversions().getMaxItemUseDuration(entity);
+     }
++
++    /**
++     * Clones the itemstack and returns it a single quantity.
++     * @return The new itemstack with 1 quantity
++     */
++    @NotNull
++    public ItemStack asOne() {
++        return asQuantity(1);
++    }
++
++    /**
++     * Clones the itemstack and returns it as the specified quantity
++     * @param qty The quantity of the cloned item
++     * @return The new itemstack with specified quantity
++     */
++    @NotNull
++    public ItemStack asQuantity(int qty) {
++        ItemStack clone = clone();
++        clone.setAmount(qty);
++        return clone;
++    }
++
++    /**
++     * Adds 1 to this itemstack. Will not go over the items max stack size.
++     * @return The same item (not a clone)
++     */
++    @NotNull
++    public ItemStack add() {
++        return add(1);
++    }
++
++    /**
++     * Adds quantity to this itemstack. Will not go over the items max stack size.
++     *
++     * @param qty The amount to add
++     * @return The same item (not a clone)
++     */
++    @NotNull
++    public ItemStack add(int qty) {
++        setAmount(Math.min(getMaxStackSize(), getAmount() + qty));
++        return this;
++    }
++
++    /**
++     * Subtracts 1 to this itemstack.  Going to 0 or less will invalidate the item.
++     * @return The same item (not a clone)
++     */
++    @NotNull
++    public ItemStack subtract() {
++        return subtract(1);
++    }
++
++    /**
++     * Subtracts quantity to this itemstack. Going to 0 or less will invalidate the item.
++     *
++     * @param qty The amount to add
++     * @return The same item (not a clone)
++     */
++    @NotNull
++    public ItemStack subtract(int qty) {
++        setAmount(Math.max(0, getAmount() - qty));
++        return this;
++    }
++
++    /**
++     * If the item has lore, returns it, else it will return null
++     * @return The lore, or null
++     * @deprecated in favor of {@link #lore()}
++     */
++    @Deprecated
++    public @Nullable java.util.List<String> getLore() {
++        if (!hasItemMeta()) {
++            return null;
++        }
++        ItemMeta itemMeta = getItemMeta();
++        if (!itemMeta.hasLore()) {
++            return null;
++        }
++        return itemMeta.getLore();
++    }
++
++    /**
++     * If the item has lore, returns it, else it will return null
++     * @return The lore, or null
++     */
++    public @Nullable java.util.List<net.kyori.adventure.text.Component> lore() {
++        if (!this.hasItemMeta()) {
++            return null;
++        }
++        final ItemMeta itemMeta = getItemMeta();
++        if (!itemMeta.hasLore()) {
++            return null;
++        }
++        return itemMeta.lore();
++    }
++
++    /**
++     * Sets the lore for this item.
++     * Removes lore when given null.
++     *
++     * @param lore the lore that will be set
++     * @deprecated in favour of {@link #lore(java.util.List)}
++     */
++    @Deprecated
++    public void setLore(@Nullable java.util.List<String> lore) {
++        ItemMeta itemMeta = getItemMeta();
++        if (itemMeta == null) {
++            throw new IllegalStateException("Cannot set lore on " + getType());
++        }
++        itemMeta.setLore(lore);
++        setItemMeta(itemMeta);
++    }
++
++    /**
++     * Sets the lore for this item.
++     * Removes lore when given null.
++     *
++     * @param lore the lore that will be set
++     */
++    public void lore(@Nullable java.util.List<? extends net.kyori.adventure.text.Component> lore) {
++        ItemMeta itemMeta = getItemMeta();
++        if (itemMeta == null) {
++            throw new IllegalStateException("Cannot set lore on " + getType());
++        }
++        itemMeta.lore(lore);
++        this.setItemMeta(itemMeta);
++    }
++
++    /**
++     * Set itemflags which should be ignored when rendering a ItemStack in the Client. This Method does silently ignore double set itemFlags.
++     *
++     * @param itemFlags The hideflags which shouldn't be rendered
++     */
++    public void addItemFlags(@NotNull ItemFlag... itemFlags) {
++        ItemMeta itemMeta = getItemMeta();
++        if (itemMeta == null) {
++            throw new IllegalStateException("Cannot add flags on " + getType());
++        }
++        itemMeta.addItemFlags(itemFlags);
++        setItemMeta(itemMeta);
++    }
++
++    /**
++     * Remove specific set of itemFlags. This tells the Client it should render it again. This Method does silently ignore double removed itemFlags.
++     *
++     * @param itemFlags Hideflags which should be removed
++     */
++    public void removeItemFlags(@NotNull ItemFlag... itemFlags) {
++        ItemMeta itemMeta = getItemMeta();
++        if (itemMeta == null) {
++            throw new IllegalStateException("Cannot remove flags on " + getType());
++        }
++        itemMeta.removeItemFlags(itemFlags);
++        setItemMeta(itemMeta);
++    }
++
++    /**
++     * Get current set itemFlags. The collection returned is unmodifiable.
++     *
++     * @return A set of all itemFlags set
++     */
++    @NotNull
++    public java.util.Set<ItemFlag> getItemFlags() {
++        ItemMeta itemMeta = getItemMeta();
++        if (itemMeta == null) {
++            return java.util.Collections.emptySet();
++        }
++        return itemMeta.getItemFlags();
++    }
++
++    /**
++     * Check if the specified flag is present on this item.
++     *
++     * @param flag the flag to check
++     * @return if it is present
++     */
++    public boolean hasItemFlag(@NotNull ItemFlag flag) {
++        ItemMeta itemMeta = getItemMeta();
++        return itemMeta != null && itemMeta.hasItemFlag(flag);
++    }
+     // Paper end
+ }