bukkit game jam

gistfile1.txt

package me.defineoutside.tntspleef;

import org.bukkit.*;
import org.bukkit.block.Block;
import org.bukkit.command.Command;
import org.bukkit.command.CommandExecutor;
import org.bukkit.command.CommandSender;
import org.bukkit.enchantments.Enchantment;
import org.bukkit.entity.EntityType;
import org.bukkit.entity.Player;
import org.bukkit.entity.TNTPrimed;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.entity.EntityShootBowEvent;
import org.bukkit.event.entity.PlayerDeathEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.event.player.PlayerMoveEvent;
import org.bukkit.inventory.ItemStack;
import org.bukkit.inventory.meta.ItemMeta;
import org.bukkit.plugin.java.JavaPlugin;
import org.bukkit.potion.PotionEffect;
import org.bukkit.potion.PotionEffectType;
import org.bukkit.scheduler.BukkitTask;

import java.util.Random;
import java.util.concurrent.atomic.AtomicInteger;

public final class TntSpleef extends JavaPlugin implements CommandExecutor, Listener {

    GameState currentState = GameState.NOT_STARTED;

    @Override
    public void onEnable() {
        // Plugin startup logic
        Bukkit.getPluginManager().registerEvents(this, this);

        Material ONE = Material.YELLOW_STAINED_GLASS;
        Material TWO = Material.RED_STAINED_GLASS;

        final Random random = new Random();
        Bukkit.getScheduler().runTaskTimer(this, () -> {
            World world = Bukkit.getWorld("world");

            if (currentState != GameState.IN_GAME) return;

            for (int i = 0; i < 32; i++) {
                final int x = random.nextInt(200) - 100;
                final int z = random.nextInt(200) - 100;
                final int y = world.getHighestBlockYAt(x, z);
                if (y >= 25) {
                    Block block = world.getBlockAt(x, y, z);
                    if (block.getType() == ONE) {
                        for (int setY = 0; setY < 255; setY++) {
                            if (world.getBlockAt(x, setY, z).getType() != Material.AIR) {
                                world.getBlockAt(x, setY, z).setType(TWO);
                            }
                        }
                    } else if (block.getType() == TWO) {
                        for (int setY = 0; setY < 255; setY++) {
                            if (world.getBlockAt(x, setY, z).getType() != Material.AIR) {
                                world.getBlockAt(x, setY, z).setType(Material.AIR);
                            }
                        }
                    } else {
                        for (int setY = 0; setY < 255; setY++) {
                            if (world.getBlockAt(x, setY, z).getType() != Material.AIR) {
                                world.getBlockAt(x, setY, z).setType(ONE);
                            }
                        }
                    }
                }
            }
        }, 1, 1);
    }

    @Override
    public void onDisable() {
        // Plugin shutdown logic
    }

    @EventHandler
    public void onPlayerJoin(PlayerJoinEvent event) {
        tpPlayer(event.getPlayer());
    }

    @EventHandler
    public void onPlayerMove(PlayerMoveEvent event) {
        if (event.getTo().getY() < 0) {
            killPlayer(event.getPlayer());
        }
    }

    @EventHandler
    public void onPlayerDeath(PlayerDeathEvent event) {
        killPlayer(event.getEntity());
        event.setCancelled(true);
    }

    private void tpPlayer(Player player) {
        player.getPlayer().setHealth(20);
        for (PotionEffect effect : player.getActivePotionEffects()) {
            player.removePotionEffect(effect.getType());
        }
        player.getPlayer().teleport(new Location(Bukkit.getWorld("world"), 0, 100, 0));
        player.getPlayer().setGameMode(GameMode.SPECTATOR);
        player.getPlayer().addPotionEffect(new PotionEffect(PotionEffectType.BLINDNESS, 40, 1));
    }

    private void killPlayer(Player player) {
        tpPlayer(player);

        int alivePlayers = 0;
        Player lastAlive = null;
        for (Player p : Bukkit.getOnlinePlayers()) {
            if (p.getGameMode() == GameMode.ADVENTURE) {
                alivePlayers++;
                lastAlive = p;
            }
        }

        if (alivePlayers <= 1) {
            Bukkit.broadcastMessage("The game has ended, " + (lastAlive == null ? "null?" : lastAlive.getName()) + " won!");
            currentState = GameState.NOT_STARTED;

            for (Player p : Bukkit.getOnlinePlayers()) {
                if (p.getGameMode() == GameMode.SURVIVAL) {
                    tpPlayer(p);
                }
            }
        }
    }

    @Override
    public boolean onCommand(final CommandSender sender, final Command command, final String label, final String[] args) {
        if (label.equalsIgnoreCase("startgame")) {
            Bukkit.broadcastMessage("Starting game!");
            currentState = GameState.COUNTDOWN;

            AtomicInteger count = new AtomicInteger(5);
            BukkitTask task = Bukkit.getScheduler().runTaskTimer(this, () -> {
                if (count.getAndDecrement() == 0) {
                    currentState = GameState.IN_GAME;
                    regenArena();
                    teleportPlayers();
                } else {
                    Bukkit.broadcastMessage(count.get() + "...");
                }
            }, 20, 20);

            Bukkit.getScheduler().runTaskLater(this, () -> {
                Bukkit.getScheduler().cancelTask(task.getTaskId());
            }, 120);
        }

        return true;
    }

    @EventHandler
    public void onPlayerShoot(EntityShootBowEvent event) {
        if (event.getEntity() instanceof Player) {
            Player player = (Player) event.getEntity();
            Location location = player.getEyeLocation();
            TNTPrimed primed = (TNTPrimed) location.getWorld().spawnEntity(location, EntityType.PRIMED_TNT);
            primed.setFuseTicks(30);
            primed.setVelocity(location.getDirection().multiply(2));
        }
    }

    public void regenArena() {
        for (int x = -27; x <= 91; ++x) {
            for (int y = 55; y <= 83; ++y) {
                for (int z = -53; z < 37; ++z) {
                    final Location location = new Location(Bukkit.getWorld("world"), x, y, z + 400);
                    final Location paste = new Location(Bukkit.getWorld("world"), x, y, z);
                    paste.getBlock().setBlockData(location.getBlock().getBlockData());
                }
            }
        }
    }

    public void teleportPlayers() {
        for (final Player player : Bukkit.getServer().getOnlinePlayers()) {
            player.setGameMode(GameMode.ADVENTURE);
            player.getInventory().clear();

            final ItemStack bow = new ItemStack(Material.BOW, 1);
            ItemMeta meta = bow.getItemMeta();
            meta.addEnchant(Enchantment.ARROW_INFINITE, 1, true);
            bow.setItemMeta(meta);

            ItemStack arrow = new ItemStack(Material.ARROW, 1);

            player.getInventory().addItem(bow);
            player.getInventory().addItem(arrow);

            player.getInventory().setHelmet(new ItemStack(Material.IRON_HELMET));
            player.getInventory().setChestplate(new ItemStack(Material.IRON_CHESTPLATE));
            player.getInventory().setLeggings(new ItemStack(Material.IRON_LEGGINGS));
            player.getInventory().setBoots(new ItemStack(Material.IRON_BOOTS));

            player.addPotionEffect(new PotionEffect(PotionEffectType.ABSORPTION, 1000000, 2));
            player.addPotionEffect(new PotionEffect(PotionEffectType.REGENERATION, 1000000, 1));
            player.addPotionEffect(new PotionEffect(PotionEffectType.SPEED, 1000000, 1));
            player.addPotionEffect(new PotionEffect(PotionEffectType.JUMP, 1000000, 1));

            final Random random = new Random();
            Location teleportLocation;

            while (true) {
                final int x = random.nextInt(100) - 50;
                final int z = random.nextInt(100) - 50;
                final int y = player.getWorld().getHighestBlockYAt(x, z) + 1;

                if (y >= 25) { // Magic value, below this would be void
                    teleportLocation = new Location(player.getWorld(), x, y, z);
                    player.teleport(teleportLocation);
                    player.sendMessage(ChatColor.GREEN + "The Game has Begun");
                    break;
                }
            }
        }
    }

    public enum GameState {
        NOT_STARTED,
        COUNTDOWN,
        IN_GAME
    }
}