package org.bukkit.entity;

/**
 * Represents an arrow.
 */
public interface Arrow extends Projectile
{

	/**
	 * Gets the knockback strength for an arrow, which is the
	 * {@link org.bukkit.enchantments.Enchantment#KNOCKBACK KnockBack} level
	 * of the bow that shot it.
	 *
	 * @return the knockback strength value
	 */
	public int getKnockbackStrength();

	/**
	 * Sets the knockback strength for an arrow.
	 *
	 * @param knockbackStrength the knockback strength value
	 */
	public void setKnockbackStrength(int knockbackStrength);

	/**
	 * Gets whether this arrow is critical.
	 * <p>
	 * Critical arrows have increased damage and cause particle effects.
	 * <p>
	 * Critical arrows generally occur when a player fully draws a bow before
	 * firing.
	 *
	 * @return true if it is critical
	 */
	public boolean isCritical();

	/**
	 * Sets whether or not this arrow should be critical.
	 *
	 * @param critical whether or not it should be critical
	 */
	public void setCritical(boolean critical);

	// Spigot start
	public class Spigot extends Entity.Spigot
	{

		public double getDamage()
		{
			throw new UnsupportedOperationException("Not supported yet.");
		}

		public void setDamage(double damage)
		{
			throw new UnsupportedOperationException("Not supported yet.");
		}
	}

	Spigot spigot();
	// Spigot end
}