package net.glowstone.inventory;
import net.glowstone.util.nbt.CompoundTag;
import org.bukkit.Color;
import org.bukkit.Material;
import org.bukkit.inventory.ItemFactory;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
/**
* An implementation of {@link ItemFactory} responsible for creating ItemMetas.
*/
public final class GlowItemFactory implements ItemFactory {
private static final GlowItemFactory instance = new GlowItemFactory();
private static final Color LEATHER_COLOR = Color.fromRGB(0xA06540);
private GlowItemFactory() {
}
@Override
public ItemMeta getItemMeta(Material material) {
return makeMeta(material, null);
}
@Override
public boolean isApplicable(ItemMeta meta, ItemStack stack) throws IllegalArgumentException {
return isApplicable(meta, stack.getType());
}
@Override
public boolean isApplicable(ItemMeta meta, Material material) throws IllegalArgumentException {
return meta != null && material != null && toGlowMeta(meta).isApplicable(material);
}
@Override
public boolean equals(ItemMeta meta1, ItemMeta meta2) throws IllegalArgumentException {
// todo: be nicer about comparisons without involving serialization
// and the extra new objects for null arguments
GlowMetaItem glow1, glow2;
if (meta1 == null) {
glow1 = new GlowMetaItem(null);
} else {
glow1 = toGlowMeta(meta1);
}
if (meta2 == null) {
glow2 = new GlowMetaItem(null);
} else {
glow2 = toGlowMeta(meta2);
}
return glow1.serialize().equals(glow2.serialize());
}
@Override
public ItemMeta asMetaFor(ItemMeta meta, ItemStack stack) throws IllegalArgumentException {
return makeMeta(stack.getType(), toGlowMeta(meta));
}
@Override
public ItemMeta asMetaFor(ItemMeta meta, Material material) throws IllegalArgumentException {
return makeMeta(material, toGlowMeta(meta));
}
@Override
public Color getDefaultLeatherColor() {
return LEATHER_COLOR;
}
public CompoundTag writeNbt(ItemMeta meta) {
CompoundTag result = new CompoundTag();
toGlowMeta(meta).writeNbt(result);
return result.isEmpty() ? null : result;
}
public ItemMeta readNbt(Material material, CompoundTag tag) {
if (tag == null) return null;
GlowMetaItem meta = makeMeta(material, null);
if (meta == null) return null;
meta.readNbt(tag);
return meta;
}
/**
* Get the static GlowItemFactory instance.
* @return The instance.
*/
public static GlowItemFactory instance() {
return instance;
}
/**
* Throw a descriptive error if the given ItemMeta does not belong to this factory.
* @param meta The ItemMeta.
* @return The GlowMetaItem.
*/
private GlowMetaItem toGlowMeta(ItemMeta meta) {
if (meta instanceof GlowMetaItem) {
return (GlowMetaItem) meta;
}
throw new IllegalArgumentException("Item meta " + meta + " was not created by GlowItemFactory");
}
/**
* Get a suitable ItemMeta for the material, reusing the provided meta if non-null and possible.
*/
private GlowMetaItem makeMeta(Material material, GlowMetaItem meta) {
// todo: more specific metas
switch (material) {
case AIR:
return null;
case BOOK_AND_QUILL:
case WRITTEN_BOOK:
return new GlowMetaBook(meta);
case SKULL_ITEM:
return new GlowMetaSkull(meta);
case BANNER:
return new GlowMetaBanner(meta);
case LEATHER_HELMET:
case LEATHER_CHESTPLATE:
case LEATHER_LEGGINGS:
case LEATHER_BOOTS:
return new GlowMetaLeatherArmor(meta);
case FIREWORK:
return new GlowMetaFirework(meta);
case FIREWORK_CHARGE:
return new GlowMetaFireworkEffect(meta);
default:
return new GlowMetaItem(meta);
}
}
}