Postea/src/main/java/com/myname/mymodid/API/ItemStackKey.java

package com.myname.mymodid.API;


import cpw.mods.fml.common.registry.RegistryDelegate;
import net.minecraft.item.Item;

import java.util.Objects;

public class ItemStackKey {
    private final Item item;
    private final int meta;

    public ItemStackKey(Item item, int meta) {
        this.item = item;
        this.meta = meta;
    }

    @Override
    public boolean equals(Object o) {
        if (o == null) return false;
        if (o instanceof ItemStackKey that) {
            return (this.meta == that.meta) && (this.item == that.item);
        } else return false;
    }

    @Override
    public int hashCode() {
        return Objects.hash(item, meta);
    }

    public int getDamage() {
        return meta;
    }

    public Item getItem() {
        return item;
    }
}