DoubleJumpPlus - Main.java - 2.0

package net.thegamingcraft.DoubleJump;

import java.util.ArrayList;
import java.util.HashMap;

import org.bukkit.Bukkit;
import org.bukkit.Effect;
import org.bukkit.GameMode;
import org.bukkit.block.Block;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.EntityDamageEvent;
import org.bukkit.event.entity.EntityDamageEvent.DamageCause;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.event.player.PlayerToggleFlightEvent;
import org.bukkit.event.player.PlayerToggleSneakEvent;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.util.Vector;

public class Main extends JavaPlugin implements Listener {

    HashMap<Player, Boolean> cooldown = new HashMap<Player, Boolean>();
    ArrayList<Player> fixed = new ArrayList<Player>();

    @Override
    public void onEnable() {
        Bukkit.getServer().getPluginManager().registerEvents(this, this);
    }

    @Override
    public void onDisable() {
        for (Player pl : Bukkit.getOnlinePlayers()) {
            pl.setFlying(false);
            pl.setAllowFlight(false);
        }
    }

    @SuppressWarnings("deprecation")
    @EventHandler
    public void onDamage(EntityDamageEvent e) {
        if (e.getCause() == DamageCause.FALL) {
            if (e.getEntity().getType() == EntityType.PLAYER) {
                Player p = (Player) e.getEntity();

                if (p.hasPermission("DJP.doubleJump") || p.hasPermission("DJP.groundPound")) {
                    e.setCancelled(true);
                }

                if (!p.hasPermission("DJP.*") && !p.hasPermission("DJP.groundPound")) return;
                if (p.isSneaking() == true) {
                    ArrayList<Block> blocks = new ArrayList<Block>();
                    blocks.add(p.getWorld().getBlockAt(p.getLocation().subtract(0, 1, 0)));
                    blocks.add(p.getWorld().getBlockAt(p.getLocation().subtract(1, 1, 0)));
                    blocks.add(p.getWorld().getBlockAt(p.getLocation().subtract(0, 1, 1)));
                    blocks.add(p.getWorld().getBlockAt(p.getLocation().subtract(-1, 1, 0)));
                    blocks.add(p.getWorld().getBlockAt(p.getLocation().subtract(0, 1, -1)));
                    blocks.add(p.getWorld().getBlockAt(p.getLocation().subtract(1, 1, 1)));
                    blocks.add(p.getWorld().getBlockAt(p.getLocation().subtract(-1, 1, -1)));
                    blocks.add(p.getWorld().getBlockAt(p.getLocation().subtract(2, 1, 0)));
                    blocks.add(p.getWorld().getBlockAt(p.getLocation().subtract(-2, 1, 0)));
                    blocks.add(p.getWorld().getBlockAt(p.getLocation().subtract(0, 1, 2)));
                    blocks.add(p.getWorld().getBlockAt(p.getLocation().subtract(0, 1, -2)));

                    for (Block b : blocks) {
                        for (Player pl : Bukkit.getOnlinePlayers()) {
                            pl.playEffect(b.getLocation(), Effect.STEP_SOUND, b.getTypeId());
                        }
                    }

                    p.setSneaking(false);
                }
            }
        }
    }

    @SuppressWarnings("deprecation")
    @EventHandler
    public void onMove(PlayerMoveEvent e) {
        Player p = e.getPlayer();

        if (!p.hasPermission("DJP.doubleJump") && p.getAllowFlight() == true && !fixed.contains(p)) {
            p.setFlying(false);
            p.setAllowFlight(false);
            fixed.add(p);
        }

        if (p.getGameMode() == GameMode.CREATIVE) return;
        if (!p.hasPermission("DJP.doubleJump")) return;

        if (cooldown.get(p) != null && cooldown.get(p) == true) {
            p.setAllowFlight(true);
        } else {
            p.setAllowFlight(false);
        }

        if (p.isOnGround()) {
            cooldown.put(p, true);
        }

        if (cooldown.get(p) != null && cooldown.get(p) == false) {
            for (Player pl : Bukkit.getOnlinePlayers()) {
                pl.playEffect(p.getLocation(), Effect.SMOKE, 2004);
            }
        }
    }

    @SuppressWarnings("deprecation")
    @EventHandler
    public void onFly(PlayerToggleFlightEvent e) {
        Player p = e.getPlayer();

        if (p.getGameMode() == GameMode.CREATIVE) return;
        if (p.hasPermission("DJP.doubleJump")) {
            if (cooldown.get(p) == true) {
                e.setCancelled(true);
                cooldown.put(p, false);
                p.setVelocity(p.getLocation().getDirection().multiply(1.6D).setY(1.0D));

                for (Player pl : Bukkit.getOnlinePlayers()) {
                    pl.playEffect(p.getLocation(), Effect.MOBSPAWNER_FLAMES, 2004);
                }

                p.setAllowFlight(false);
            }
        }
    }

    @SuppressWarnings("deprecation")
    @EventHandler
    public void onSneak(PlayerToggleSneakEvent e) {
        Player p = e.getPlayer();

        if (p.getGameMode() == GameMode.CREATIVE) return;
        if (!p.hasPermission("DJP.groundPount")) return;

        if (p.isOnGround() == false && cooldown.get(p) != null && cooldown.get(p) == false) {
            p.setVelocity(new Vector(0, -5, 0));
        }
    }

}