Weapon is optional

1 files changed, 78 insertions, 0 deletions

diff --git a/src/main/java/kubatech/api/utils/ItemID.java b/src/main/java/kubatech/api/utils/ItemID.java
new file mode 100644
index 0000000000..199af7ebd0
--- /dev/null
+++ b/src/main/java/kubatech/api/utils/ItemID.java
@@ -0,0 +1,78 @@
+package kubatech.api.utils;
+
+import java.util.Objects;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+
+public class ItemID {
+    private final Item item;
+    private final int count;
+    private final int meta;
+    private final NBTTagCompound tag;
+    private final boolean ignorecount;
+    private final boolean ignoremeta;
+    private final boolean ignorenbt;
+
+    public static ItemID create(ItemStack stack) {
+        return new ItemID(stack, true, true, true, true); // ignore count by default
+    }
+
+    public static ItemID create(ItemStack stack, boolean ignorecount) {
+        return new ItemID(stack, ignorecount, false, false, true);
+    }
+
+    public static ItemID create(ItemStack stack, boolean ignorecount, boolean ignoremeta) {
+        return new ItemID(stack, ignorecount, ignoremeta, false, true);
+    }
+
+    public static ItemID create(ItemStack stack, boolean ignorecount, boolean ignoremeta, boolean ignorenbt) {
+        return new ItemID(stack, ignorecount, ignoremeta, ignorenbt, true);
+    }
+
+    public static ItemID create_NoCopy(ItemStack stack) {
+        return new ItemID(stack, true, false, false, false); // ignore count by default
+    }
+
+    public static ItemID create_NoCopy(ItemStack stack, boolean ignorecount) {
+        return new ItemID(stack, ignorecount, false, false, false);
+    }
+
+    public static ItemID create_NoCopy(ItemStack stack, boolean ignorecount, boolean ignoremeta) {
+        return new ItemID(stack, ignorecount, ignoremeta, false, false);
+    }
+
+    public static ItemID create_NoCopy(ItemStack stack, boolean ignorecount, boolean ignoremeta, boolean ignorenbt) {
+        return new ItemID(stack, ignorecount, ignoremeta, ignorenbt, false);
+    }
+
+    private ItemID(ItemStack stack, boolean ignorecount, boolean ignoremeta, boolean ignorenbt, boolean createcopy) {
+        this.ignorecount = ignorecount;
+        this.ignoremeta = ignoremeta;
+        this.ignorenbt = ignorenbt;
+        item = stack.getItem();
+        count = ignorecount ? 0 : stack.stackSize;
+        meta = ignoremeta ? 0 : stack.getItemDamage();
+        tag = ignorenbt ? null : (createcopy ? (NBTTagCompound) stack.stackTagCompound.copy() : stack.stackTagCompound);
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hash(item, count, meta, tag);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null) return false;
+        if (obj == this) return true;
+        if (obj instanceof ItemID) return obj.hashCode() == this.hashCode();
+        if (obj instanceof ItemStack) {
+            if (!item.equals(((ItemStack) obj).getItem())) return false;
+            if (!ignorecount) if (count != ((ItemStack) obj).stackSize) return false;
+            if (!ignoremeta) if (meta != ((ItemStack) obj).getItemDamage()) return false;
+            if (!ignorenbt) if (!tag.equals(((ItemStack) obj).stackTagCompound)) return false;
+            return true;
+        }
+        return false;
+    }
+}