data.txt

package me.Gage.lifesteal;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import org.bukkit.Bukkit;
import org.bukkit.ChatColor;
import org.bukkit.command.Command;
import org.bukkit.command.CommandSender;
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.EntityDeathEvent;
import org.bukkit.event.entity.PlayerDeathEvent;
import org.bukkit.event.player.PlayerJoinEvent;
import org.bukkit.plugin.java.JavaPlugin;

public class Main extends JavaPlugin implements Listener{
	
	public String version = this.getConfig().getString("version");
	public HashMap<Player, Integer> hearts = new HashMap<Player, Integer>();
	public void onEnable() {
		Bukkit.getConsoleSender().sendMessage("LifeSteal Successfully Enabled..");
		this.saveDefaultConfig();
		this.getServer().getPluginManager().registerEvents(this, this);
		this.restoreHealth();
	}
	
	public void onDisable() {
		Bukkit.getConsoleSender().sendMessage("LifeSteal Successfully Disabled.");
		if(!(hearts.isEmpty())) {
			this.saveHealth();
		}
	}
	
	
	public void saveHealth() {
		for(HashMap.Entry<Player, Integer> entry : hearts.entrySet()) {
			this.getConfig().set("data." + entry.getKey(), entry.getValue());
			this.saveConfig();
		}
	}
	
	public void restoreHealth() {
		 this.getConfig().getConfigurationSection("data").getKeys(false).forEach(key -> {
			 @SuppressWarnings("unchecked")
			 Integer[] content = ((List<Integer>) this.getConfig().get("data." + key)).toArray(new Integer[0]);
			 Player f = Bukkit.getServer().getPlayer(key);
			 hearts.put(f, content);
		 });
	}
	
	@EventHandler
	public void onFirstJoin(PlayerJoinEvent e) {
		hearts.put(e.getPlayer(), 20);
	}
	
	public boolean onCommand(CommandSender sender, Command cmd, String[] args) {
		if(cmd.getName().equalsIgnoreCase("lifesteal")) {
			if(!(sender instanceof Player)) {
				sender.sendMessage("LifeSteal Version:" + version);
				return true;
			}
			if(args.length == 0) {
				//ver
				sender.sendMessage(ChatColor.translateAlternateColorCodes('&', "&cLifeSteal Version: &4" + version));
			}
			if(args.length > 0) {
				if(args[0].equalsIgnoreCase("reload")) {
					this.reloadConfig();
					sender.sendMessage(ChatColor.GOLD + "LifeSteal Config Reloaded.");
				}
			}
			
		}
		return false;
	}
	
	@EventHandler
	public boolean onEntityDeath(EntityDeathEvent e) {
		if(e.getEntityType() == EntityType.PLAYER) {
			Player killer = e.getEntity().getKiller();
			Player victim = (Player) e.getEntity();
			
			if(victim.getMaxHealth() <= 1) {
				return true;
			}
			killer.setMaxHealth(killer.getMaxHealth() + 1);
			victim.setMaxHealth(victim.getMaxHealth() - 1);
			hearts.put(victim, hearts.get(victim) - 1);
			hearts.put(killer, hearts.get(killer) + 1);
		}
		return false;
	}
}