deepWater.java v.06

package me.kevinatoranator.AGTV;

import java.util.ArrayList;

import org.bukkit.GameMode;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.block.Block;
import org.bukkit.block.BlockFace;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.player.PlayerMoveEvent;

public class deepWater implements Listener {
    AGTV plugin;
    static ArrayList<String> DeepWaterWorlds = new ArrayList<String>();

    public deepWater(AGTV instance) {
        plugin = instance;
    }

    @EventHandler
    public void playerMove(PlayerMoveEvent event){
        if(plugin.getConfig().getBoolean("enableDeepWater")==true){
            World world = event.getPlayer().getWorld();
        Block block = null;
        Block ublock = null;
        Block uublock = null;
        Block ablock = null;
        Block aablock = null;

        Location from = event.getFrom().clone();
        Player player = event.getPlayer();
        block = from.getBlock();
        ublock = block.getRelative(BlockFace.DOWN);
        uublock = ublock.getRelative(BlockFace.DOWN);
        ablock = block.getRelative(BlockFace.UP);
        aablock = ablock.getRelative(BlockFace.UP);
        if(DeepWaterWorlds.contains(world.getName())){
            if(player.getGameMode()!= GameMode.CREATIVE){
                if(block.getType()==Material.STATIONARY_WATER && ublock.getType()==Material.STATIONARY_WATER
                        && uublock.getType()==Material.STATIONARY_WATER || aablock.getType() == Material.STATIONARY_WATER){
                    int health = player.getHealth();
                    if(health>0){
                            player.setHealth(health-1);

                        }
                    }
                }
            }
        }
    }
}