Create ItemType

src/main/java/WayofTime/alchemicalWizardry/common/ItemType.java

@@ -0,0 +1,87 @@
+package WayofTime.alchemicalWizardry.common;
+
+import java.util.Objects;
+
+import net.minecraft.block.Block;
+import net.minecraft.item.Item;
+import net.minecraft.item.ItemStack;
+import net.minecraft.nbt.NBTTagCompound;
+
+/**
+ * Represents an item together with metadata and NBT tag.
+ * 
+ * @author ljfa-ag
+ */
+public class ItemType
+{
+    public final Item item;
+    public final int meta;
+    public final NBTTagCompound nbtTag;
+    
+    public ItemType(Item item, int meta, NBTTagCompound nbtTag)
+    {
+        this.item = Objects.requireNonNull(item);
+        this.meta = meta;
+        this.nbtTag = nbtTag;
+    }
+    
+    public ItemType(Item item, int meta)
+    {
+        this(item, meta, null);
+    }
+    
+    public ItemType(Item item)
+    {
+        this(item, 0, null);
+    }
+    
+    public ItemType(Block block, int meta, NBTTagCompound nbtTag)
+    {
+        this(Item.getItemFromBlock(block), meta, nbtTag);
+    }
+    
+    public ItemType(Block block, int meta)
+    {
+        this(block, meta, null);
+    }
+    
+    public ItemType(Block block)
+    {
+        this(block, 0, null);
+    }
+    
+    public ItemStack createStack(int count)
+    {
+        ItemStack result = new ItemStack(item, count, meta);
+        result.stackTagCompound = nbtTag;
+        return result;
+    }
+    
+    @Override
+    public boolean equals(Object obj)
+    {
+        if (this == obj)
+            return true;
+        if (obj == null || getClass() != obj.getClass())
+            return false;
+        ItemType other = (ItemType) obj;
+        return item == other.item && meta == other.meta && Objects.equals(nbtTag, other.nbtTag);
+    }
+
+    @Override
+    public int hashCode()
+    {
+        final int prime = 31;
+        int result = 1;
+        result = prime * result + item.hashCode();
+        result = prime * result + meta;
+        result = prime * result + ((nbtTag == null) ? 0 : nbtTag.hashCode());
+        return result;
+    }
+    
+    public static ItemType fromStack(ItemStack stack)
+    {
+        return new ItemType(stack.getItem(), stack.getItemDamage(), stack.stackTagCompound);
+    }
+    
+}