package org.bukkit.event.block;

import org.bukkit.block.Block;
import org.bukkit.block.BlockState;
import org.bukkit.event.HandlerList;

/**
 * Called when a block spreads based on world conditions.
 * <p>
 * Use {@link BlockFormEvent} to catch blocks that "randomly" form instead of
 * actually spread.
 * <p>
 * Examples:
 * <ul>
 * <li>Mushrooms spreading.
 * <li>Fire spreading.
 * </ul>
 * <p>
 * If a Block Spread event is cancelled, the block will not spread.
 *
 * @see BlockFormEvent
 */
public class BlockSpreadEvent extends BlockFormEvent
{
	private static final HandlerList handlers = new HandlerList();
	private final Block source;

	public BlockSpreadEvent(final Block block, final Block source, final BlockState newState)
	{
		super(block, newState);
		this.source = source;
	}

	/**
	 * Gets the source block involved in this event.
	 *
	 * @return the Block for the source block involved in this event.
	 */
	public Block getSource()
	{
		return source;
	}

	@Override
	public HandlerList getHandlers()
	{
		return handlers;
	}

	public static HandlerList getHandlerList()
	{
		return handlers;
	}
}