src/main/java/darkknight/jewelrycraft/random/WeightedRandomItem.java


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package darkknight.jewelrycraft.random;

import java.util.Random;

import net.minecraft.item.ItemStack;
import net.minecraft.util.WeightedRandom;

public class WeightedRandomItem extends WeightedRandom.Item {
	private final ItemStack	item;
	private int				maxMeta, minMeta, minItem, maxItem;

	public WeightedRandomItem(ItemStack item, int weight) {
		super(weight);
		this.item = item;
		this.minItem = 1;
		this.maxItem = 1;
		this.maxMeta = 0;
		this.minMeta = 0;
	}

	public WeightedRandomItem(ItemStack item, int maxMetadata,
			int weight) {
		this(item, weight);
		this.maxMeta = maxMetadata;
	}

	public WeightedRandomItem(ItemStack item, int weight, int minItem,
			int maxItem) {
		this(item, weight);
		this.minItem = minItem;
		this.maxItem = maxItem;
	}

	public WeightedRandomItem setMaxMetadata(int meta) {
		this.maxMeta = meta;
		return this;
	}

	public WeightedRandomItem setMinMetadata(int meta) {
		this.minMeta = meta;
		return this;
	}

	public WeightedRandomItem setMinItem(int min) {
		this.minItem = min;
		return this;
	}

	public WeightedRandomItem setMaxItem(int max) {
		this.maxItem = max;
		return this;
	}

	public ItemStack getItem(Random random) {
		ItemStack itemstack = this.item.copy();
		if (maxMeta > 0)
			itemstack.setItemDamage(
					minMeta + random.nextInt(maxMeta - minMeta));
		if (maxItem > 1)
			itemstack.stackSize = this.minItem
					+ random.nextInt(this.maxItem - this.minItem + 1);
		return itemstack;
	}
}