secreterproject/src/main/java/net/pivipi/LoginHandler.java

package net.pivipi;

import net.minestom.server.coordinate.Pos;
import net.minestom.server.entity.GameMode;
import net.minestom.server.entity.Player;
import net.minestom.server.event.GlobalEventHandler;
import net.minestom.server.event.player.AsyncPlayerConfigurationEvent;
import net.minestom.server.event.player.PlayerSpawnEvent;
import net.minestom.server.instance.Instance;
import net.pivipi.ball.Ball;

public class LoginHandler {
    private final Instance spawningInstance;

    public LoginHandler(Instance spawningInstance) {
        this.spawningInstance = spawningInstance;
    }

    public void setup(GlobalEventHandler globalEventHandler) {
        globalEventHandler.addListener(
            AsyncPlayerConfigurationEvent.class,
            event -> onLogin(event)
        );

        globalEventHandler.addListener(
            PlayerSpawnEvent.class,
            event -> onSpawn(event)
        );
    }

    private void onLogin(AsyncPlayerConfigurationEvent event) {
        Player player = event.getPlayer();

        event.setSpawningInstance(spawningInstance);
        event.setHardcore(true);

        player.setRespawnPoint(new Pos(0, 5, 0));
    }

    private void onSpawn(PlayerSpawnEvent event) {
        Player player = event.getPlayer();

        player.setGameMode(GameMode.CREATIVE);

        Ball ball = new Ball();
        ball.setInstance(event.getInstance());
        ball.teleport(new Pos(0.5, 15, 0.5));
    }
}