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package org.bukkit.enchantments;
import java.util.HashMap;
import java.util.Map;
import org.bukkit.inventory.ItemStack;
/**
* The various type of enchantments that may be added to armour or weapons
*/
public abstract class Enchantment {
/**
* Provides protection against environmental damage
*/
public static final Enchantment PROTECTION_ENVIRONMENTAL = new EnchantmentWrapper(0);
/**
* Provides protection against fire damage
*/
public static final Enchantment PROTECTION_FIRE = new EnchantmentWrapper(1);
/**
* Provides protection against fall damage
*/
public static final Enchantment PROTECTION_FALL = new EnchantmentWrapper(2);
/**
* Provides protection against explosive damage
*/
public static final Enchantment PROTECTION_EXPLOSIONS = new EnchantmentWrapper(3);
/**
* Provides protection against projectile damage
*/
public static final Enchantment PROTECTION_PROJECTILE = new EnchantmentWrapper(4);
/**
* Decreases the rate of air loss whilst underwater
*/
public static final Enchantment OXYGEN = new EnchantmentWrapper(5);
/**
* Increases the speed at which a player may mine underwater
*/
public static final Enchantment WATER_WORKER = new EnchantmentWrapper(6);
/**
* Increases damage against all targets
*/
public static final Enchantment DAMAGE_ALL = new EnchantmentWrapper(16);
/**
* Increases damage against undead targets
*/
public static final Enchantment DAMAGE_UNDEAD = new EnchantmentWrapper(17);
/**
* Increases damage against arthropod targets
*/
public static final Enchantment DAMAGE_ARTHROPODS = new EnchantmentWrapper(18);
/**
* All damage to other targets will knock them back when hit
*/
public static final Enchantment KNOCKBACK = new EnchantmentWrapper(19);
/**
* When attacking a target, has a chance to set them on fire
*/
public static final Enchantment FIRE_ASPECT = new EnchantmentWrapper(20);
/**
* Provides a chance of gaining extra loot when killing monsters
*/
public static final Enchantment LOOT_BONUS_MOBS = new EnchantmentWrapper(21);
/**
* Increases the rate at which you mine/dig
*/
public static final Enchantment DIG_SPEED = new EnchantmentWrapper(32);
/**
* Allows blocks to drop themselves instead of fragments (for example, stone instead of cobblestone)
*/
public static final Enchantment SILK_TOUCH = new EnchantmentWrapper(33);
/**
* Decreases the rate at which a tool looses durability
*/
public static final Enchantment DURABILITY = new EnchantmentWrapper(34);
/**
* Provides a chance of gaining extra loot when destroying blocks
*/
public static final Enchantment LOOT_BONUS_BLOCKS = new EnchantmentWrapper(35);
private static final Map<Integer, Enchantment> byId = new HashMap<Integer, Enchantment>();
private static final Map<String, Enchantment> byName = new HashMap<String, Enchantment>();
private static boolean acceptingNew = true;
private final int id;
public Enchantment(int id) {
this.id = id;
}
/**
* Gets the unique ID of this enchantment
*
* @return Unique ID
*/
public int getId() {
return id;
}
/**
* Gets the unique name of this enchantment
*
* @return Unique name
*/
public abstract String getName();
/**
* Gets the maximum level that this Enchantment may become.
*
* @return Maximum level of the Enchantment
*/
public abstract int getMaxLevel();
/**
* Gets the level that this Enchantment should start at
*
* @return Starting level of the Enchantment
*/
public abstract int getStartLevel();
/**
* Gets the type of {@link ItemStack} that may fit this Enchantment.
*
* @return Target type of the Enchantment
*/
public abstract EnchantmentTarget getItemTarget();
/**
* Checks if this Enchantment may be applied to the given {@link ItemStack}
*
* @param item Item to test
* @return True if the enchantment may be applied, otherwise False
*/
public abstract boolean canEnchantItem(ItemStack item);
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (!(obj instanceof Enchantment)) {
return false;
}
final Enchantment other = (Enchantment) obj;
if (this.id != other.id) {
return false;
}
return true;
}
@Override
public int hashCode() {
return id;
}
@Override
public String toString() {
return "Enchantment[" + id + ", " + getName() + "]";
}
/**
* Registers an enchantment with the given ID and object.
* <p>
* Generally not to be used from within a plugin.
*
* @param id ID of the enchantment
* @param enchantment Enchantment to register
*/
public static void registerEnchantment(Enchantment enchantment) {
if (byId.containsKey(enchantment.id) || byName.containsKey(enchantment.getName())) {
throw new IllegalArgumentException("Cannot set already-set enchantment");
} else if (!isAcceptingRegistrations()) {
throw new IllegalStateException("No longer accepting new enchantments (can only be done by the server implementation)");
}
byId.put(enchantment.id, enchantment);
byName.put(enchantment.getName(), enchantment);
}
/**
* Checks if this is accepting Enchantment registrations.
*
* @return True if the server Implementation may add enchantments
*/
public static boolean isAcceptingRegistrations() {
return acceptingNew;
}
/**
* Stops accepting any enchantment registrations
*/
public static void stopAcceptingRegistrations() {
acceptingNew = false;
}
/**
* Gets the Enchantment at the specified ID
*
* @param id ID to fetch
* @return Resulting Enchantment, or null if not found
*/
public static Enchantment getById(int id) {
return byId.get(id);
}
/**
* Gets the Enchantment at the specified name
*
* @param name Name to fetch
* @return Resulting Enchantment, or null if not found
*/
public static Enchantment getByName(String name) {
return byName.get(name);
}
/**
* Gets an array of all the registered {@link Enchantment}s
*
* @return Array of enchantments
*/
public static Enchantment[] values() {
return byId.values().toArray(new Enchantment[byId.size()]);
}
}
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